CN115211764A

CN115211764A - Surface cleaning apparatus

Info

Publication number: CN115211764A
Application number: CN202210864300.9A
Authority: CN
Inventors: 刘旭; 刘广亚; 高钊
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-10-21

Abstract

The invention discloses surface cleaning equipment which comprises a main body or an extension rod, a handle assembly, a detection device and a controller. The handle assembly comprises a rotating part and a holding part, and the rotating part can be pivotally arranged at the far end around a rotating axis; a grip portion is coupled to the rotating portion, the grip portion configured to be gripped by a user. The detection device is used for detecting the relative position relation of the handle assembly relative to the main body or the extension rod. The controller is used for sending out a control instruction, and the controller is configured to send out a control instruction corresponding to the relative position relation. By detecting the positional relationship of the handle assembly relative to the main body or extension pole, the user's intent can be more quickly and accurately identified for adjustment of the surface cleaning apparatus by the controller. Because the handle assembly is rotatable, when the position or the movement trend of other parts of the surface cleaning equipment is not changed, the position of the handle assembly is used for prejudging, and the accuracy and the reaction speed can be effectively improved.

Description

Surface cleaning apparatus

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to surface cleaning equipment.

Background

Upright or horizontal cleaning devices generally comprise a cleaning head and a handle assembly between which components are disposed. The handle assembly is typically mounted to the body or extension pole and the user can be more labored, especially during the pull back process, when pushing or pulling the device through the handle assembly.

In the prior art, a sensor detects the relative position relationship between the cleaning device and the floor to adjust the driving force of the rolling brush so as to change the force between the cleaning device and the floor, thereby saving labor for a user during cleaning. However, this method requires a sensitive sensor, and different environments may affect the sensitivity, and often make a mistake, which may affect the customer experience.

Disclosure of Invention

In view of the above-described deficiencies in the art, the present invention provides a surface cleaning apparatus that provides control commands through a rotatable handle assembly to improve reliability and sensitivity.

In one aspect, the invention provides a surface cleaning apparatus comprising

A body or extension pole including opposed proximal and distal ends along its length;

a handle assembly including a rotating portion and a grip portion, the rotating portion being pivotably mounted to the distal end about an axis of rotation; the grip portion is connected to the rotating portion, the grip portion being configured to be gripped by a user;

a detection device for detecting the relative position relationship of the handle component relative to the main body or the extension rod,

and the controller is used for sending out a control command, and the controller is configured to send out a control command corresponding to the relative position relation.

Optionally, the detecting device is used for detecting a rotation direction of the handle assembly relative to the main body or the extension rod, wherein the rotation direction comprises a first rotation direction and a second rotation direction, and the rotation direction can be switched between the first rotation direction and the second rotation direction; the controller is configured to issue a control command corresponding to the change of the rotation direction.

Optionally, the handle assembly comprises a first position and a second position relative to the main body or the extension rod, and when the handle assembly is located at the first position, the controller sends out a first control command according to a signal generated by the detection device; when the handle assembly is located at the second position, the controller sends out a second control instruction according to the signal generated by the detection device.

Optionally, when the angle between the handle assembly and the main body or the extension rod is smaller than a first preset angle, the controller sends a first control instruction according to a signal generated by the detection device. When the angle between the handle assembly and the main body or the extension rod is larger than a second preset angle, the controller sends a second control instruction according to the signal generated by the detection device.

Optionally, a preset area is included, and the controller is configured to issue a control instruction corresponding to the change of the rotation direction only when the rotation direction is changed in the preset area.

Optionally, the controller issues a first control instruction when switching from the first rotation direction to the second rotation direction.

Optionally, the controller issues a second control instruction when switching from the second rotation direction to the first rotation direction.

Optionally, the preset area includes a first preset area and a second preset area; the first predetermined area and the second predetermined area are spaced apart.

Optionally, the main body or the extension rod has an upright state and a use state relative to a working surface, and when the main body or the extension rod is in the use state, the rotating portion is located below the holding portion in the vertical direction.

Optionally, the handle assembly is rotatable in a first plane substantially perpendicular to the work surface; and a first plane passing through at least part of the holding part is taken as a preset plane, an area formed by the movement of the holding part along the direction vertical to the axis of the holding part is defined as a first area in the preset plane, and the rotating axis is positioned in the first area.

The present invention provides a surface cleaning apparatus comprising a body or wand including opposed proximal and distal ends along its length. The surface cleaning apparatus further comprises a handle assembly comprising a rotating portion and a grip portion, the rotating portion being pivotably mounted to the distal end about a rotational axis; a grip portion is coupled to the rotating portion, the grip portion configured to be gripped by a user. The detection device is used for detecting the relative position relation of the handle assembly relative to the main body or the extension rod. The controller is used for sending out a control instruction, and the controller is configured to send out a control instruction corresponding to the relative position relation. By detecting the positional relationship of the handle assembly relative to the main body or extension pole, the user's intent can be more quickly and accurately identified for adjustment of the surface cleaning apparatus by the controller. Because the handle component is rotatable, when the positions or the movement trends of other parts of the surface cleaning equipment are not changed, the positions of the handle component are used for prejudging, and a control instruction is sent out in advance, so that the accuracy and the reaction speed can be effectively improved, and the user experience is further improved.

Drawings

FIG. 1 is a schematic view of a prior art surface cleaning apparatus;

FIG. 2 is a schematic view of a surface cleaning apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of the handle assembly mounted to the connecting rod in one embodiment;

FIG. 4 is an exploded view of the handle assembly and connecting rod in one embodiment;

FIG. 5 is a schematic view of the lower handle assembly at another angle;

FIG. 6 is an exploded view of the lower handle assembly and connecting rod at another angle;

FIG. 7 is a cross-sectional view of a first planar cut handle assembly according to one embodiment;

FIG. 8 is a cross-sectional view of the handle assembly taken through a first plane in another embodiment;

FIG. 9 is a schematic view of the handle assembly at an angle of use;

FIG. 10 is a schematic view of the handle assembly at another angle of use;

FIG. 11 is a schematic view of the relative positioning of the rotating portion and the gripping portion of the handle assembly;

FIG. 12 is a schematic structural view of a handle assembly in some other embodiments;

FIG. 13 is a schematic view of an embodiment of a surface cleaning apparatus;

FIG. 14 is a schematic view of a user in a first state when using the cleaning apparatus;

FIG. 15 is a schematic view of a user in a second state when using the cleaning apparatus;

FIG. 16 is an enlarged view of area E in FIG. 14;

FIG. 17 is an enlarged view of area F of FIG. 15;

FIG. 18 is a schematic view of a handle assembly according to another embodiment;

FIG. 19 is a structural schematic view of the handle assembly of FIG. 18 at another angle;

FIG. 20 is a schematic view of the handle assembly of FIG. 18 shown separated from the connecting rod;

FIG. 21 is a schematic view showing the structure of a cleaning apparatus in still another embodiment;

FIG. 22 is a schematic structural view of a handle assembly according to an embodiment;

FIG. 23 is a cross-sectional view of the handle assembly of FIG. 22 taken along the direction S-S;

FIG. 24 is an enlarged view of the structure of the area T in FIG. 23;

FIG. 25 is a cross-sectional view of the handle assembly rotated through an angle;

FIG. 26 is an exploded view of the handle assembly in one embodiment;

FIG. 27 is an exploded view of the lower handle assembly at another angle;

FIG. 28 is a schematic view of the structure of the shaft connecting the handle assembly and the connecting structure;

fig. 29 is a schematic view showing a structure of a first preset region;

fig. 30 is a schematic view showing a structure of a second preset region;

FIG. 31 is a schematic view showing the relative angles of the handle assembly and attachment structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Figure 1 discloses a prior art surface cleaning apparatus in which the handle assembly cannot rotate relative to the main body. Referring to fig. 2, the direction of the arrow is the direction of travel of the apparatus. Fig. 2 discloses a device comprising a body 2 and a handle assembly 1. The handle assembly may be provided with a control switch for controlling the device. Referring to fig. 3-12, the handle assembly 1 includes a rotating portion 11 and a grip portion 12. Of course, a connecting portion 13 connecting the rotating portion 11 and the grip portion 12 may be further included. The rotary part 11 is rotatably mounted to the body 2 or the extension rod 4 about a rotational axis O such that the handle assembly 1 can be rotated in a first plane a substantially perpendicular to the working surface B. The axis of rotation may be located within the rotating portion. The rotation axis may also be located outside the rotary part (not shown in the figures) and in the area defined between the rotary part and the grip part. Specifically, when the rotation axis is located outside the rotation portion, the rotation portion slides along an arc relative to the main body or the extension rod, and the entire handle assembly rotates around the rotation axis relative to the main body or the extension rod. The body 2 may be a single body, and the body 2 may further include a connecting rod 21, in which case the handle assembly 1 is rotatably mounted to one end of the connecting rod 21. The rotating portion 11 is a part of the handle assembly 1, and may be a small part or a large part, and the volume of the rotating portion 11 is not limited here, and only needs to be pivotable with respect to the main body 2 or the extension rod 4. A grip portion 12 is connected to the rotating portion 11, the grip portion 12 being configured to be gripped by a user. The connecting portion 13 is used to connect the rotating portion 11 and the connecting portion 13. The connecting portion 13 is a place which is rarely touched by a user in normal use, but may be touched by the user occasionally, but mainly plays a connecting role rather than being mainly held. The grip portion 12, the connecting portion 13, and the rotating portion 11 may be integrally formed, or may be provided separately. At least a part of the holding space is defined among the rotating portion 11, the connecting portion 13 and the holding portion 12 to facilitate the user's holding.

Referring to fig. 7 to 8, the direction of the arrow in the drawings is a direction perpendicular to the grip portion, a first plane a passing through at least a part of the grip portion 12 is defined as a predetermined plane, and a region formed by the movement of the grip portion 12 in a direction perpendicular to the axis of the grip portion 12 is defined as a first region C within the predetermined plane, and the rotation axis O is located within the first region C. The rotation axis O may be perpendicular to the first plane a and may also be at an angle to the first plane a, preferably the rotation axis O is perpendicular to the first plane a. Referring to fig. 7, the axial direction perpendicular to the grip portion 12 is better defined when the grip portion is of a relatively straight configuration. Referring to fig. 8, when the grip portion 12 includes a certain curvature, the two ends of the grip portion 12 may be connected to each other, and then the direction perpendicular to the connection line is taken as the moving direction. The grip portion 12 is intended to mean a position where a user's hand is mainly or permanently held during operation, and other structures for increasing the handle shape should not be included in the grip portion 12. The predetermined plane is preferably a plane in the direction of travel of the apparatus, which is substantially perpendicular to the working surface B. The grip portion 12 is cut out from the predetermined plane, and both the grip portion 12 and the rotation axis O can be included in the plane, and if the rotation portion 11 is located directly below the grip portion 12, the rotation portion 11 is also included in the plane.

Referring to fig. 9-11, the rotation axis 26 of the handle assembly 1 is disposed opposite to the grip portion 12, and the point of application of force can be concentrated at a position corresponding to the hand, i.e., when the hand naturally holds the grip portion 12, the arm, the hand and the rotation axis 26 are substantially in the same linear direction, which can make the user more labor-saving when operating the device. Especially, in the process of pushing and pulling the device, the force applied to the handle assembly 1 by the main body 2 is concentrated on the rotating part 11, and the rotating part 11 is rotatable relative to the main body, so that the force applied to the wrist of the user is not basically needed, the arm force of the user is only needed to be transmitted to the rotating part 11 of the handle assembly 1 through the hand, which is equivalent to that the user only carries out the swing arm action, and the wrist has no force basically. Therefore, the user can feel more labor-saving in the operation process.

However, in the prior art, the handle assembly 1 cannot rotate relative to the main body 2, and the joint between the handle assembly 1 and the main body 2 changes relative to the position of the hand of the user along with the back and forth movement of the device, so that the user is required to adjust the position of the hand relative to the forearm, and the device is difficult to use.

Referring to fig. 11 and 12, in one implementation of the handle assembly 1, the handle assembly 1 comprises a rotating portion 11 and a grip portion 12 that are substantially parallel, the handle assembly 1 further comprising a first connection portion 14, the first connection portion 14 connecting a first end of the grip portion 12 and a first end of the rotating portion 11. The first connecting portion 14 is arc-shaped, but may have other shapes. Each of the diagrams a and b in fig. 12 has only one connecting portion.

Referring to fig. 11 and 12, in another implementation of the handle assembly 1, in addition to the first connecting portion 14, a second connecting portion 15 may be further included, and the second connecting portion 15 connects the second end of the grip portion 12 and the second end of the rotating portion 11. The second connecting portion 15 is arc-shaped, but may have other shapes. There are two connections in the diagrams c in fig. 11 and 12.

Referring to fig. 11, the connecting portion 13 includes a first connecting portion 14 and a second connecting portion 15, the first connecting portion 14 connects first ends of the rotating portion 11 and the holding portion 12, the second connecting portion 15 connects second ends of the rotating portion 11 and the holding portion 12, and the rotating portion 11, the first connecting portion 14, the holding portion 12, and the second connecting portion 15 collectively define a holding space. By adopting two connecting parts 13, the whole handle assembly 1 can be more stable and convenient to operate, because the user can operate the device through the connecting parts 13 except during normal use. The first connecting portion 14 and the second connecting portion 15 are both arc-shaped and form a ring shape together with the rotating portion 11 and the grip portion 12.

The grip portion 12 is configured to be inclined at an angle of not more than 20 degrees with respect to the working surface B when the handle assembly 1 is in the use state. It will be appreciated that the grip portion may be rotated into a position which does not differ from the work surface by more than 20 degrees, when the device is in use, regardless of how much the device is tilted relative to the work surface. Further, the grip portion 12 is configured to be substantially horizontal when the handle assembly 1 is in the use position, i.e. the grip portion may each be rotated to a position substantially parallel to a work surface. The use state is a state in which the main body 2 is inclined at 0 to 60 degrees with respect to the working surface B, and the user holds the grip portion 12 with a hand and pushes and pulls the apparatus in a relaxed state. In this state, the user can push and pull the device with the minimum force, which is more labor-saving.

The handle assembly 1 can be mounted to any device, it is only necessary that the main body 2 of the device has a certain angle with respect to the working surface B during operation, and the main body 2 can be pushed and pulled by a user through the handle assembly 1 during operation.

Referring to figure 13 there is disclosed a surface cleaning apparatus 100, the surface cleaning apparatus 100 comprising a main body 2, a cleaning head 3 and a handle assembly 1 according to any of the embodiments described above. The body 2 includes opposed proximal and distal ends 22, 23 along its length. The body 2 may include a connecting rod 21, it being understood that the connecting rod 21 is part of the body 2. The cleaning head 3 is disposed at the proximal end 22 for cleaning a surface to be cleaned. The cleaning head 3 may comprise a wiping piece such as a roller brush, a rag or the like. The cleaning head 3 can be moved repeatedly in the direction of travel to clean the surface to be cleaned. The handle assembly 1 comprises a rotary part 11 and a grip part 12, the rotary part 11 being rotatably mounted to the distal end 23 about a rotational axis O. A grip portion 12 is connected to the rotating portion 11, the grip portion 12 being configured to be gripped by a user. The rotating portion 11 is a part of the handle assembly 1, and may be a small part or a large part, and the volume of the rotating portion 11 is not limited here, and only needs to be pivotable with respect to the main body 2. The rotary portion 11 may be formed integrally with the grip portion 12, or may be provided separately from the grip portion.

Surface cleaning apparatus 100 may include one or both of a cleaning liquid supply system including a clean water tank, a supply line, and a water pump, and a soil recovery system. The dirt recovery system comprises a recovery tank and also comprises a suction motor and a suction pipeline. The clean water tank may be provided in the main body 2 and the recovery tank may be provided in the main body 2 and may also be provided in the cleaner head 3. The suction motor may be provided in the main body 2 and may also be provided in the cleaner head 3. When the clean water tank, the sewage tank and the suction motor are all arranged in the main body 2, at this time, the weight of the whole main body 2 can be heavier, and the user can be labored in the operation.

The holding part 12 is rotatably arranged at the far end 23 of the main body 2 through the rotating part 11, and in the process that the main body 2 is pushed and pulled, because the handle is rotatable relative to the main body 2, the burden of a user holding the handle can be effectively reduced, and the user can drag the equipment with little force.

Referring to fig. 14-17, fig. 14 may be a first position of the user while in use, and fig. 15 may be a second position of the user while in use. The use state during normal cleaning may be that the cleaning device is pushed or pulled between the first position and the second position. To further reduce the user's effort in pushing and pulling the cleaning device, the handle assembly 1 may be further modified. The main body 2 or the extension bar 4 has an upright state (refer to fig. 13) and a use state (refer to fig. 14 and 15) with respect to the cleaning head 3, and the rotating portion 11 is located below the grip portion 12 in the vertical direction when the main body 2 or the extension bar 4 is in the use state. The use state described here is a state in which the user holds the grip portion 12 with his hand and keeps a relatively relaxed state. Since the handle assembly 1 is rotatable, the device can be pushed and pulled regardless of the angle to which the handle assembly is rotated, only the force is different, and the use state refers to that the user can push and pull the device with the minimum force. In the above-mentioned usage state, the rotating portion 11 is located below the grip portion 12, where the lower portion includes but is not limited to being located directly below the grip portion 12, and may also be slightly offset from some orientation, for example: referring to fig. 18-20, the rotating portion 11 is located directly below the grip portion. Referring to fig. 3 to 5, if the two rotary shafts 2, 6 are disposed outside the handle assembly 1, even if the rotary portion 11 is not located directly below the grip portion 12, it can be understood that the rotary portion 11 is located below the grip portion 12. However, if the rotating portion 11 and the grip portion 12 are placed in the same vertical plane, the rotating shaft 26 of the rotating portion 11 is located directly below the grip portion 12. With this arrangement, it is equivalent to disposing the rotation shaft 26 directly under the hand, and at this time, the user should be most labor-saving when operating the device, because the gravity on the main body 2 is concentrated at the rotation shaft 26 during the pushing and pulling process, and the rotation shaft 26 is located below the grip portion 12, and therefore, it is equivalent to carrying a heavy object with the hand, and if the handle assembly 1 cannot rotate, the gravity on the main body 2 is concentrated in front of or obliquely in front of the grip portion 12 during the pushing and pulling process, and at this time, the user needs a large force during the pushing and pulling process, just like holding things with the hand at ordinary times, and should be most labor-saving when carrying.

It will also be appreciated that, with reference to the figures, the handle assembly 1 further comprises a limit formation 25, the limit formation 25 being configured to limit the angle of rotation of the handle assembly 1 such that the angle of rotation is less than 100 degrees. Further, it may be limited to 70 degrees. Still further, it may be limited to 45 degrees.

Referring to fig. 18-20, in one implementation, the distal end 23 of the main body 2 or the extension rod 4 includes a connecting structure 24, a portion of the connecting structure 24 extends into the interior of the handle assembly 1 to be pivotally connected with the rotating portion 11 via a rotating shaft 26, and the distal end 23 is provided with a limiting structure 25 defining the rotation angle of the handle assembly 1.

Referring to fig. 3-6, in another implementation, the distal end 23 of the main body 2 or the extension rod 4 includes a connection structure 24, the connection structure 24 defines a mounting slot to be pivotably connected with the rotation part 11 through a rotation shaft 26, and the distal end 23 is provided with a limit structure 25 defining a rotation angle of the handle assembly 1.

FIG. 21 is a schematic view showing the structure of a cleaning apparatus in still another embodiment. Referring to fig. 21, the surface cleaning apparatus 100 may be a horizontal type cleaning apparatus, which includes a main body 5 and a cleaning head 3 placed on the floor, and an extension rod 4 connecting the main body 5 and the cleaning head 3, wherein the cleaning head 3 is installed at one end of the extension rod 4, and the handle assembly 1 is installed at the other end thereof, and then is communicated with the main body 5 through a hose. The handle assembly 1 may be of any of the embodiments described above.

The handle assembly 1 may be added with features to the handle assembly 1 of any of the above embodiments to form a new embodiment, and in particular, the handle assembly 1 includes a rotating portion 11, a gripping portion 12 and a connecting portion 13, referring to fig. 22-25. The swivel part 11 is rotatably mounted to the body 2 or the extension rod 4 about a swivel axis such that the handle assembly 1 can be swivelled in a first plane substantially perpendicular to the work surface. A grip portion 12 is connected to the rotating portion 11, the grip portion 12 being configured to be gripped by a user. The connecting portion 13 is used to connect the rotating portion 11 and the connecting portion 13. In order to make the handle assembly 1 more versatile to fit the needs of different users. The handle assembly 1 comprises a locked state and a rotatable state with respect to the body 2 or the extension rod 4. When the handle assembly 1 is in the locked state, the handle assembly 1 is stationary relative to the body 2 or extension pole 4 during use. When the handle assembly 1 is in the rotatable state, the handle assembly 1 can rotate relative to the main body 2 or the extension rod 4 when in use. For example, when a user cleans a large space, the user may need to walk forward for a period of time and then turn and then continue to push the device forward to clean the space in a bow shape, and at the moment, the user only needs to walk forward, so that the handle assembly 1 is fixed in a locked state, and the user is labor-saving. Furthermore, some users may be accustomed to the handle being in a stationary state relative to the body 2 or the extension pole 4, and therefore the locked state may meet the needs of that part of the user.

Referring to fig. 23-24, in particular, the handle assembly 1 includes a latch structure 9, the latch structure 9 being for retaining the handle assembly 1 in a locked position. Locking structure 9 can be for buckle formula, magnetism inhale formula or other structural style, only need guarantee can with handle assembly 1 keep at the locking state can. The locking structure 9 comprises an elastic member 91 and a locking member 92 connected to the elastic member 91, the locking member 92 cooperating with a groove 93 on the main body 2 or the extension rod 4 to hold the handle assembly 1 in the locked position. Referring to fig. 26-28, the rotatable portion 11 defines an elongated recess into which the distal end of the body 2 or extension rod 4 extends. The recess defines a receiving space into which a portion of the coupling structure 21 extends, the coupling structure 21 and the rotary part 11 being rotatably connected by a shaft 94. After the shaft 94 is mounted, end caps 95 are provided at both ends of the shaft 94 to shield the shaft. The end cap 95 may also function as a stationary shaft. The shaft 94 is provided with a wire passage hole 96 and a blind fastener 97, and the blind fastener 97 can fix the shaft to the connecting structure 21. A control switch 98 is provided on the handle assembly 1 for controlling the surface cleaning apparatus. The wire passing hole 96 facilitates the wire harness to pass through the connecting structure 21 to be connected to the handle assembly 1, so that the wire harness is not affected even if the handle assembly 1 is rotatable.

Referring to fig. 29-31, the angle between the axis of the body 2 or extension rod 4 and the axis of the grip portion 12 is less than 45 degrees when the handle assembly 1 is in the locked condition. Further, the included angle between the axis of the main body 2 or the extension rod 4 and the axis of the holding part 12 is less than 30 degrees. Even if the handle assembly 1 is in the locked state, the user does not feel much effort when using it.

The application also discloses a surface cleaning apparatus comprising a handle assembly 1 and a cleaning head as in any one of the embodiments described above. The handle assembly is removably mounted to the body or extension pole. The cleaning head may comprise a roller brush and drive wheels. The cleaning head may further comprise two mutually parallel roller brushes. The cleaning head may also comprise two mutually parallel roller brushes and a further drive wheel. The handle assembly 1 is rotatable relative to the body 2 or the extension rod 4, and with reference to fig. 29-31, the handle assembly 1 is rotatable in the r1 direction and the r2 direction. Wherein the angle between the handle and the connecting structure 21 can be defined as c, and it can be understood that the angle between the handle and the connecting structure 21 is the angle between the grip portion 12 and the axial direction of the connecting structure 21. In the using process, the angle c can be changed at any time, so that a user can save more labor in the pushing and pulling process.

When repeatedly pushing and pulling the surface cleaning apparatus for cleaning, if the power assistance (the roller brush grip or the drive wheel drive) of the surface cleaning apparatus is relatively large when advancing, the user will be relatively hard when pulling the apparatus backwards. If the power assistance (the roller brush grip or the drive wheel drive) of the surface cleaning apparatus is small when advancing, the user is strenuous when pushing forward. In order to solve the above problems, the present application improves on the basis of the rotatable handle assembly 1 to change the power of the cleaning apparatus during the forward or backward pulling process. In particular, a detection device 99 and a controller are added to the surface cleaning apparatus. The detecting means 99 is used for detecting the relative positional relationship of the handle assembly 1 with respect to the main body 2 or the extension bar 4. The controller is used for sending out a control command, and the controller is configured to send out a control command corresponding to the relative position relation. The detection device 99 may be disposed on the handle assembly 1, or may be disposed on the main body 2 or the extension rod 4, or a part of the detection device 99 may be disposed on the handle assembly 1 and a part may be disposed on the main body 2 or the extension rod 4.

With continued reference to fig. 29-31, in one embodiment, the detection device 99 is configured to detect a rotational direction of the handle assembly 1 relative to the body 2 or the extension pole 4, the rotational direction including a first rotational direction r1 and a second rotational direction r2, the rotational direction being switchable between the first rotational direction r1 and the second rotational direction r 2. The controller is configured to issue a control command corresponding thereto according to the change in the rotational direction. When the handle rotates from the first rotation direction to the second rotation direction, which indicates that the operation of the user may be changed from pushing forward to pulling backward, the detection device 99 generates a signal, and the controller receives or acquires the signal generated by the detection device 99 and then issues a corresponding control command. For example, when the cleaning head is provided with the driving wheel, the rotation direction of the driving wheel may be changed, and when the cleaning head is provided with the roll brush, the rotation speed or the rotation direction of the roll brush may be adjusted to change the grip force or the grip direction of the roll brush. When the cleaning head comprises the double rolling brushes and the rotating directions of the two rolling brushes are opposite, the controller can control the rotating speed of one rolling brush or the two rolling brushes to adjust the force generated by the surface cleaning equipment per se relative to the surface to be cleaned, so that the surface cleaning equipment is more suitable for being controlled by a user. Specifically, the friction forces generated by the two rolling brushes relative to the surface to be cleaned are different, so that one rotating speed is greater than the other rotating speed, and labor is saved in a certain direction.

The change of the rotation direction of the handle assembly 1 may include, but is not limited to, the following several implementations:

1. the forward rotation and the reverse rotation of the handle assembly 1 are detected through a microswitch;

2. detecting the forward rotation and reverse rotation of the handle assembly 1 by using the coding disc through a photoelectric sensor;

3. the forward rotation and reverse rotation actions of the handle assembly 1 are detected through the rotation angles of the magnetic resistance angle sensor and the magnet, and any position (angle) can be detected;

4. the resistance value of the potentiometer is changed by rotating the handle assembly 1 by using the potentiometer (sliding rheostat) to detect the forward rotation and reverse rotation of the handle assembly 1;

5. detecting the rotation direction of the handle assembly 1 by a hall sensor;

in addition to the above-mentioned methods, other detection methods may be adopted, which are not listed here.

Of course, the control instructions may also control the adjustment of other structures. Control command can control the switch of water pump or adjust the play liquid measure of water pump, through the position relation that detects handle components for main part or extension rod, can be more quick and accurate discernment user's intention to adjust surface cleaning equipment through the controller. Because the handle assembly is rotatable, when the position or the motion trend of other parts of the surface cleaning equipment are not changed, the position of the handle assembly is used for prejudging, and a control instruction is sent out in advance, so that the accuracy and the reaction speed can be effectively improved, and the user experience is further improved.

In order to make the control more accurate, a preset area is arranged in the rotating area of the handle assembly 1, and when the rotating direction is changed only in the preset area, the controller is configured to send out a control command corresponding to the change of the rotating direction. When a change in the rotational direction occurs outside the preset region, the detection device 99 does not generate a signal or the controller does not issue a control command even if the detection device 99 generates a signal.

Referring to fig. 29, when switching from the first rotation direction to the second rotation direction, the controller issues a first control instruction. For example: if the cleaning head comprises two rolling brushes rotating in forward and reverse directions, when the direction of movement of the equipment is changed from forward to backward, the controller controls the rotation speed of the front rolling brush to be reduced or controls the rotation speed of the rear rolling brush to be increased or controls the rotation speed of the front rolling brush to be reduced and the rotation speed of the rear rolling brush to be increased simultaneously according to the signal generated by the detection device 99. The manner of changing the roller brush is not limited here, but only the force of the device relative to the surface to be cleaned (the force of lifting the roller brush backwards). Therefore, the user can save labor when pulling backwards, and if the backward main force is large, the user does not need to pull backwards, and only needs to hold the handle component 1. When the device is moved backward for a certain distance and needs to be changed from backward pulling to forward pushing, referring to fig. 30, at this time, when the handle assembly 1 is switched from the second rotation direction to the first rotation direction, the controller issues a second control command. Controlling the rotating speed of the front rolling brush to increase or controlling the rotating speed of the rear rolling brush to decrease, or simultaneously controlling the rotating speed of the front rolling brush to increase and the rotating speed of the rear rolling brush to decrease. The manner of changing the roller brush is not limited, and only the force of the device relative to the surface to be cleaned (the force for lifting forward) needs to be changed, so that the user can save labor when pushing forward.

The force of the surface cleaning equipment relative to the ground is controlled through the change of the rotation direction of the handle assembly, the situation that a user drags force for the equipment to change the motion direction of the equipment by manpower when the cleaning equipment is switched to the earliest can be avoided (the dragging force usually gives the user the best experience), whether the motion direction of the cleaning equipment needs to be changed is judged in advance equivalently, when the motion direction needs, the controller directly controls the surface cleaning equipment to generate corresponding assistance force to help the user, the change of the motion direction is realized by the minimum force, and meanwhile, the whole cleaning process is more labor-saving. Furthermore, the control command is sent out through the rotation direction of the handle assembly, so that the control process can be more accurate, and the phenomenon of error control (the user does not want to change the movement direction originally, and the cleaning equipment sends out the control command on the contrary) caused by the difference of user operation is reduced as much as possible.

Referring to fig. 29 and 30, the preset area includes a first preset area and a second preset area. The first predetermined area and the second predetermined area are spaced apart. The first and second predetermined regions may be a range of angles, as shown, the range of the angle a may be the first predetermined region, within which the controller issues a control command according to a signal generated by the detecting device 99 if the detecting device 99 detects that the rotation direction of the handle assembly 1 is changed. The range of the angle b may be a second preset region in which the controller issues a control command according to a signal generated by the detection device 99 if the detection device 99 detects that the rotation direction of the handle assembly 1 is changed. The values of a and b and the areas where the values are located can be set according to the size of actual equipment and the operation habits of users, can be set before leaving factories, and can also be set by users. The first predetermined area and the second predetermined area are spaced apart. A movement space can be provided for the handle assembly 1, and the situation that when the rotation direction of the handle assembly 1 is changed in the middle area, the controller sends out an instruction to influence the operation of a user is avoided.

Through setting up the preset area, only handle assembly's turning to take place in presetting the area, the controller just sends control command, can effectively adapt to different users' use habit, avoids the emergence of mistake accuse as far as possible simultaneously. Further, two spaced preset regions are provided, so that even if a user turns the handle assembly in the spaced regions for some reasons, a control signal is not sent, and the control precision is improved.

In another embodiment, the handle assembly 1 comprises a first position and a second position relative to the body 2 or the extension rod 4, and the controller issues a first control command according to the signal generated by the detecting device 99 when the handle assembly 1 is in the first position; when the handle assembly 1 is in the second position, the controller issues a second control command according to the signal generated by the detecting device 99.

Implementations for detecting the position of the handle assembly 1 may include, but are not limited to, the following:

1. the position of the handle assembly 1 is detected through two microswitches;

2. detecting the position of the handle assembly 1 by using the encoding disc through a photoelectric sensor;

3. the position of the handle assembly 1 is detected through the rotation angle of the magnetic resistance angle sensor and the magnet, and any position (angle) can be detected;

4. the potentiometer is utilized, the resistance value of the potentiometer is changed by rotating the handle, and the position of the handle assembly 1 is detected;

5. the position of the handle assembly 1 is detected by a hall sensor.

In addition to the above-mentioned several methods, other detection methods may be adopted, which are not listed here.

In still another embodiment, referring to fig. 30, when the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is smaller than a first preset angle, i.e. the angle c is smaller than a certain angle, the controller sends a first control command according to the signal generated by the detecting device 99. When the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is greater than a second preset angle, that is, the angle c is greater than a certain angle, the controller sends a second control instruction according to a signal generated by the detection device 99.

The implementation manners for detecting the relative position relationship between the handle assembly 1 and the main body 2 or the extension rod 4 may include, but are not limited to, the following implementation manners:

1. the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is detected through two micro switches;

2. the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is detected by using the encoding disc through two photoelectric sensors;

3. the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is detected through the magnetic resistance angle sensor and the rotation angle of the magnet, and any position (angle) can be detected;

4. the potentiometer is utilized, the resistance value of the potentiometer is changed by rotating the handle, and the angle between the handle assembly 1 and the main body 2 or the extension rod 4 is detected;

5. the angle between the stem assembly and the main body 2 or the extension rod 4 is detected by a hall sensor.

While embodiments of the invention have been described above, it is not intended to be limited to the details shown, described and illustrated herein, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent that such modifications are readily available to those skilled in the art, and it is not intended to be limited to the details shown and described herein without departing from the general concept as defined by the appended claims and their equivalents.

Claims

1. A surface cleaning apparatus, comprising:

a body or extension pole including opposing proximal and distal ends along its length;

a detection device for detecting the relative position relationship of the handle assembly relative to the main body or the extension rod,

2. A surface cleaning apparatus as claimed in claim 1,

the detection device is used for detecting the rotation direction of the handle assembly relative to the main body or the extension rod, the rotation direction comprises a first rotation direction and a second rotation direction, and the rotation direction can be switched between the first rotation direction and the second rotation direction; the controller is configured to issue a control command corresponding to the change of the rotation direction.

3. A surface cleaning apparatus as claimed in claim 1,

the handle assembly comprises a first position and a second position relative to the main body or the extension rod, and when the handle assembly is located at the first position, the controller sends out a first control command according to a signal generated by the detection device; when the handle assembly is located at the second position, the controller sends out a second control instruction according to the signal generated by the detection device.

4. A surface cleaning apparatus as claimed in claim 1,

when the angle between the handle assembly and the main body or the extension rod is smaller than a first preset angle, the controller sends a first control instruction according to a signal generated by the detection device; when the angle between the handle assembly and the main body or the extension rod is larger than a second preset angle, the controller sends a second control instruction according to the signal generated by the detection device.

5. A surface cleaning apparatus as claimed in claim 2,

the controller is configured to send out a control instruction corresponding to the change of the rotating direction according to the change of the rotating direction when the rotating direction is changed in the preset area.

6. A surface cleaning apparatus as claimed in claim 2,

when the first rotation direction is switched to the second rotation direction, the controller sends out a first control instruction.

7. A surface cleaning apparatus as claimed in claim 2,

and when the second rotation direction is switched to the first rotation direction, the controller sends out a second control instruction.

8. A surface cleaning apparatus as claimed in claim 2,

the preset area comprises a first preset area and a second preset area; the first predetermined area and the second predetermined area are spaced apart.

9. A surface cleaning apparatus as claimed in claim 1,

the main part or the extension rod has upright state and user state for the working surface, when the main part or the extension rod is located when user state, along vertical direction the rotating part is located the below of gripping portion.

10. A surface cleaning apparatus as claimed in claim 1,

the handle assembly is rotatable in a first plane substantially perpendicular to the work surface; and a first plane passing through at least part of the holding part is taken as a preset plane, an area formed by the movement of the holding part along the direction vertical to the axis of the holding part is defined as a first area in the preset plane, and the rotating axis is positioned in the first area.