CN115211753A - Handle assembly and surface cleaning equipment - Google Patents

Abstract

The invention discloses a handle assembly and a surface cleaning device. The swivel portion is rotatably mounted to the body or the extension pole about a swivel axis to permit rotation of the handle assembly in a first plane substantially perpendicular to the work surface. A grip portion is coupled to the rotating portion, the grip portion configured to be gripped by a user. The connecting part is used for connecting the rotating part and the connecting part. The handle assembly comprises a locking state and a rotatable state relative to the main body or the extension rod, and when the handle assembly is in the locking state, the handle assembly is static relative to the main body or the extension rod in use; when the handle assembly is in the rotatable state, the handle assembly may rotate relative to the body or the extension pole when in use. The convenience of the handle assembly is greatly improved by switching the handle assembly between a locking state and a rotatable state.

Description

Handle assembly and surface cleaning equipment

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a handle assembly and surface cleaning equipment.

Background

Upright or horizontal cleaning devices typically include a cleaning head and a handle assembly with components disposed therebetween. The user can hold the handle to move the cleaning head back and forth to clean the surface to be cleaned. The shape and position of the handle, etc. plays a very important role during cleaning. In the prior art, in order to adapt to the heights or use scenes of different users, a handle can be made to be movable, so that the operation of the user is facilitated.

Although the movable handle can adapt to different scenes or heights, the movable characteristic of the movable handle causes some troubles.

Disclosure of Invention

In view of the above-mentioned shortcomings in the art, the present invention provides a handle assembly and a surface cleaning apparatus, which enables the handle assembly to have a locked state and a rotatable state, improving convenience.

In one aspect, the present invention provides a handle assembly comprising

A rotating part rotatably mounted to the body or the extension rod about a rotation axis so that the handle assembly can rotate in a first plane substantially perpendicular to the work surface;

a grip portion coupled to the rotating portion, the grip portion configured to be gripped by a user;

a connecting portion for connecting the rotating portion and the connecting portion;

the handle assembly comprises a locked state and a rotatable state relative to the body or extension pole, when the handle assembly is in the locked state, the handle assembly is stationary relative to the body or extension pole when in use; when the handle assembly is in the rotatable state, the handle assembly may rotate relative to the body or the extension rod when in use.

Optionally, the handle assembly comprises a locking structure for retaining the handle assembly in a locked position.

Optionally, the locking structure comprises an elastic member and a locking member connected to the elastic member, wherein the locking member cooperates with a groove on the main body or the extension rod to maintain the handle assembly in the locked position.

Optionally, when the handle assembly is in the locked state, an included angle between an axis of the main body or the extension rod and an axis of the holding portion is less than 45 degrees.

Optionally, the rotation axis is located outside the rotation portion and within an area defined between the rotation portion and the grip portion.

The rotating portion is equivalent to sliding in an arc relative to the main body or the extension rod, while the entire handle assembly rotates about the axis of rotation relative to the main body or the extension rod.

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.

Optionally, the grip portion is inclined at an angle of no more than 20 degrees relative to a working surface when the handle assembly is in use.

In another aspect, the invention also provides a surface cleaning apparatus comprising a handle assembly and a cleaning head as described in any one of the above.

Optionally, the surface cleaning apparatus further comprises detection means for detecting the relative positional relationship of the handle assembly with respect to the main body or extension bar,

and 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 according to the relative position relation.

The invention provides a handle assembly and a surface cleaning device. The swivel portion is rotatably mounted to the body or the extension pole about a swivel axis to allow the handle assembly to swivel in a first plane substantially perpendicular to the work surface. A grip portion is coupled to the rotating portion, the grip portion configured to be gripped by a user. The connecting part is used for connecting the rotating part and the connecting part. The handle assembly comprises a locked state and a rotatable state relative to the body or the extension bar, and when the handle assembly is in the locked state, the handle assembly is stationary relative to the body or the extension bar during use; when the handle assembly is in the rotatable state, the handle assembly can rotate relative to the main body or the extension rod when in use. The convenience of the handle assembly is greatly improved by switching the handle assembly between a locked state and a rotatable state.

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 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 the first planar cut handle assembly in 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 diagram 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 structural view of a handle assembly in 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 view of the handle assembly of one 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 in the area T of 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 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 described clearly and completely 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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 arrow direction is the equipment running direction. 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 connection portion 13 here is a place which is rarely touched by a user in normal use, but which may be touched by a user occasionally, but which merely serves as a connection rather than a primary purpose of holding. 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 of the predetermined plane, and both the grip portion 12 and the rotation axis O are 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 to a position not exceeding 20 degrees from the work surface 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 pulls and pulls the apparatus in a relaxed state while holding the grip portion 12 with the hand. 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, and only the main body 2 of the device needs to have a certain angle relative to the working surface B during working, and a user can push and pull the main body 2 through the handle assembly 1 during working.

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 cleaning liquid 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 when the main body 2 or the extension bar 4 is in the use state, the rotation section 11 is located below the grip section 12 in the vertical direction. 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, it can be understood that the rotary shaft 11 is located below the grip 12 even though the rotary shaft 11 is not located directly below the grip 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 to allow the handle assembly 1 to swivel in a first plane substantially perpendicular to a 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 connection portion 13 is used to connect the rotation portion 11 and the connection 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 condition, the handle assembly 1 is stationary relative to the main 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 buckle formula, magnetism inhale formula or other structural style, only need guarantee can with handle assembly 1 keep in 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 to 28, the rotary part 11 defines an elongated groove into which the distal end of the main body 2 or the 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, when the handle assembly 1 is in the locked state, the angle between the axis of the main body 2 or the extension rod 4 and the axis of the grip portion 12 is less than 45 degrees. 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 present application also discloses a surface cleaning apparatus comprising a handle assembly 1 and a cleaning head as in any of the embodiments described above. The handle assembly is removably mounted to the body or the 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 extension pole 4. Referring 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, it can be understood that the angle between the two 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 more 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 to detect 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 instruction, and the controller is configured to send out a control instruction 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 forward pushing to backward pulling, the detecting device 99 generates a signal, and the controller receives or acquires the signal generated by the detecting 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 brush 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 a user to operate. Specifically, the friction force generated by the two rolling brushes relative to the surface to be cleaned is different, so that one rotating speed is greater than the other rotating speed, and the 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 several 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 set in the rotation area of the handle assembly 1, and when the rotation direction is changed only in the preset area, the controller is configured to send out a control command corresponding to the change of the rotation 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 region includes a first preset region and a second preset region. 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 range within 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. Can give handle component 1 a motion space, avoid handle component 1's direction of rotation when the middle zone changes, the controller sends the instruction, influences user's operation.

Through setting up and predetermineeing the region, only handle assembly's the turn to take place in predetermineeing the region, 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.

The implementation of detecting the position of the handle assembly 1 may include, but is not limited to, the following implementations:

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

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

3. the position of the handle assembly 1 is detected through the rotation angles 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 methods, other detection methods may be adopted, which are not listed here.

In 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. detecting the angle between the handle assembly 1 and the main body 2 or the extension rod 4 by using the coding 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 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 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.

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

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. A handle assembly, comprising:

a rotating part rotatably mounted to the body or the extension rod about a rotation axis to allow the handle assembly to rotate in a first plane substantially perpendicular to the work surface;

a grip portion connected to the rotating portion, the grip portion configured to be gripped by a user;

a connection part for connecting the rotation part and the connection part;

the handle assembly comprises a locked state and a rotatable state relative to the body or extension bar, when the handle assembly is in the locked state, the handle assembly is stationary relative to the body or extension bar in use; when the handle assembly is in the rotatable state, the handle assembly may rotate relative to the body or the extension rod when in use.

2. The handle assembly of claim 1,

the handle assembly includes a locking structure for retaining the handle assembly in a locked position.

3. The handle assembly of claim 1,

the locking structure comprises an elastic piece and a locking piece connected with the elastic piece, and the locking piece is matched with a groove in the main body or the extension rod so as to keep the handle assembly at a locking position.

4. The handle assembly of claim 1,

when the handle assembly is in a locking state, an included angle between the axis of the main body or the extension rod and the axis of the holding part is smaller than 45 degrees.

5. The handle assembly of claim 1,

the rotation axis is located outside the rotation section and within an area defined between the rotation section and the grip section.

6. The handle assembly of claim 1,

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

7. The handle assembly of 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.

8. The handle assembly of claim 1,

the grip portion is inclined at an angle of no more than 20 degrees relative to a work surface when the handle assembly is in use.

9. A surface cleaning apparatus characterised in that it comprises a handle assembly as claimed in any one of claims 1 to 8 and a cleaning head.

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

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

and 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 according to the relative position relation.

Images