CN110613395B

CN110613395B - Hand-held type cleaning device

Info

Publication number: CN110613395B
Application number: CN201910724952.0A
Authority: CN
Inventors: 王旭宁; 蒋国荣
Original assignee: Sharkninja China Technology Co Ltd
Current assignee: Sharkninja China Technology Co Ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2021-09-07
Anticipated expiration: 2039-08-07
Also published as: CN110613395A

Abstract

The present invention provides a hand-held cleaning device comprising: a body having a first axis, the body including a front end, a rear end opposite the front end, and a torso portion extending along the first axis between the front and rear ends, the torso portion being at least partially cylindrical; a handle having a second axis extending rearwardly from the rear end of the body, the handle being at least partially cylindrical; an air inlet pipe extending forward from the front end of the main body; the first axis is parallel to the second axis and is offset downwardly by a distance of 5mm to 30 mm. During operation, the handheld cleaning device is easier to maintain in a stable posture with good cleaning efficiency through the optimized distribution of the axes of all parts, thereby improving the cleaning effect each time.

Description

Hand-held type cleaning device

Technical Field

The invention relates to a surface cleaning appliance, in particular to a handheld cleaning device.

Background

At present, various types of cleaning devices are commonly used in daily life, and common cleaning devices in the market, such as handheld dust collectors, are more and more familiar to consumers, and due to the advantages of portability and good controllability, the cleaning devices become the mainstream choice for consumers when selecting household dust collectors.

The handheld dust collector basically has two common design targets, firstly, the wireless design is realized, a power line does not need to be dragged in the using process, the operation feeling is improved, and the using environment is expanded; secondly, a lightweight and compact design is required to reduce the fatigue degree during use.

Among commercially available products, there is a very portable hand-held cleaner, which has a cylindrical structure, has an overall length approximately equal to that of an adult arm, can be held by one hand for operation, and is mainly used as a vehicle-mounted cleaner for cleaning an interior structure of a vehicle such as a seat back, and for cleaning a surface of furniture such as a surface of a table, a surface of a sofa, a surface of a cabinet, and the like. The inventor discovers that the cleaning effect of the product is better when the product is used for cleaning a flexible surface, dirt attached to the surface to be cleaned can be thoroughly sucked by single suction, the cleaning effect is slightly poor when the product is used for cleaning a hard surface, and the purpose of thorough cleaning can be achieved by repeated suction. Therefore, the cleaning efficiency of the product is reduced, and the endurance time of single cleaning of the product is directly influenced.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

In order to solve the above problems, the present invention provides a hand-held cleaning device comprising:

a body having a first axis, the body including a front end, a rear end opposite the front end, and a torso portion extending along the first axis between the front and rear ends, the torso portion being at least partially cylindrical;

a handle having a second axis extending rearwardly from the rear end of the body, the handle being at least partially cylindrical;

an air inlet pipe extending forward from the front end of the main body;

the first axis is parallel to the second axis and is offset downwardly by a distance of 5mm to 30 mm.

From the overall configuration, the device is in the form of a front-to-back extension, with the body disposed between the air inlet duct and the handle, providing an operational scenario in which: the user holds the handle with a hand to clean the cleaning surface, and the air inlet is attached to the cleaning surface, so that two supporting structures are formed at two ends of the device, one of the supporting structures is formed at the handle end, and the other supporting structure is formed at the air inlet of the air inlet pipe. As will be readily appreciated, since neither support structure is a fixed support structure, the body located between the two support structures will be able to rotate about the support axis provided by the support structure, or in some scenarios have a tendency to rotate about this axis.

As mentioned above, the handheld vacuum cleaner is slightly less effective in cleaning hard and soft surfaces, and through research and verification, the inventor found that the reason for this is because the main body is supported by the support structures at both ends, and the support structures are changing, that is, the handle moves and swings with the arm; the air inlet pipe moves along the ground, the angle between the air inlet pipe and the cleaning surface is changed due to the movement and the swing of the handle during the movement, particularly, the air inlet of the air inlet pipe can continuously change the attachment state of the air inlet pipe and the cleaning surface, the change is reflected by the change of the contact area between the air inlet and the cleaning surface, and the air tightness of the attachment of the air inlet to the cleaning surface can be changed due to the fact that the hard cleaning surface cannot deform, and therefore the effect of suction cleaning is influenced.

Based on the above findings, the technical solution provided by the present invention sets the axis of the main body to be parallel offset downward relative to the axis of the handle, and matches with the operation habit of the user, i.e. holding the handle to make the air inlet pipe slightly incline forward and downward, so that the support of the device is more stable, and in the process of moving the device, if the wrist rotates or the arm moves to cause the device to deflect, the offset of the main body will naturally generate a rotation tendency for the whole device to rotate to a stable posture that the device is obliquely supported on the ground, for example, if one side of the air inlet is lifted up, the rotation tendency will provide a torque to restore the state that the air inlet is attached to the ground, so as to maintain a stable and good vacuum degree, and improve the cleaning efficiency. In the cleaning process, an operator only needs to pay attention to holding the handle and keeping the air inlet pipe supported by the cleaning surface, the cleaning surface can be cleaned with ideal cleaning efficiency, so that the satisfactory cleaning effect of the operator is obtained, repeated cleaning is reduced, and the cruising ability of the device is improved.

The axes indicate the geometric centerlines of the various features and generally extend between the front and rear ends of the device. When the outline of some partial structure has local change, then the axis is with the geometric centre line at the position of the most the same outline of this partial structure, the whole cleaning device that the above-mentioned scheme is bar-shaped, and storage is accomodate and is saved space, and it is convenient to take the playback, and the operation is felt well, advantages such as appearance is pleasing to the eye.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 2 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 3 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 4 is a schematic bottom view of a hand-held cleaning device according to an embodiment of the invention.

Fig. 5 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 6 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 7 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 8 is a schematic side view of a handheld cleaning device according to an embodiment of the invention.

Fig. 9 is a schematic diagram illustrating a disassembled structure of the handheld cleaning device according to an embodiment of the invention.

FIG. 10 is a schematic diagram illustrating a forward view of a hand-held cleaning device according to an embodiment of the invention.

FIG. 11 is a schematic diagram illustrating a forward view of a hand-held cleaning device according to an embodiment of the present invention.

Fig. 12 is a schematic view illustrating an overall configuration of a handheld cleaning device according to an embodiment of the invention.

FIG. 13 is a schematic view illustrating a usage status of the handheld cleaning device according to an embodiment of the invention.

Detailed description of the preferred embodiment

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Specifically, in the present invention, the direction "front" may be understood as a direction away from the human body when the hand-held cleaning device is positioned on the front side of the human body during actual use, and the opposite direction is defined as "rear", i.e., a direction toward the human body when the hand-held cleaning device is positioned on the front side of the human body during actual use.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In one implementation, as shown in fig. 1, a hand-held cleaning device will be described comprising:

a body 100 having a first axis, the body 100 including a front end, a rear end opposite the front end, and a torso portion 110 extending along the first axis between the front and rear ends; as shown, the end located forward F of the trunk 110 is the front end, and the end located rearward B of the trunk 110 is the rear end.

A handle 200 having a second axis extending rearward from the rear end of the body 100;

an air inlet duct 300 extending forward from the front end of the main body 100;

wherein the device as a whole is arranged with the first axis parallel to the second axis and offset downwards by a distance L1 of 5mm to 30 mm.

The axial direction of the main body is arranged to deviate downwards relative to the handle, the air inlet of the air inlet pipe is arranged to be approximately inclined, the air inlet of the air inlet pipe is supported by a cleaning surface such as a table top in the cleaning process, when the upper side and the lower side of the air inlet are simultaneously supported by the cleaning surface, a fitting state with better air tightness is formed between the air inlet and the cleaning surface, and at the moment, an air suction system in the main body can suck dirt needing to be cleaned from the cleaning surface in a more ideal state. When an operator holds the handle to move the device back and forth for cleaning, along with the shaking and swinging of the arm and the wrist, the air inlet can change the state of being attached to the cleaning surface, one side of the air inlet is lifted, the air tightness is reduced, the axis of the main body for concentrating most of the weight of the device deviates downwards, the axial direction of the main body for supporting the main body by the supporting structure formed by the handle and the air inlet is upwards relative to the axis of the main body, and then the main body can apply a torque to the whole device, and the torque acts as follows: when the device deflects a certain angle and only one part or one point of the air inlet is supported on the cleaning surface, the whole device is always deflected downwards along the rotary axial direction, namely the device is driven to rotate back to be aligned, and at least one side edge of the air inlet or the whole air inlet is enabled to be attached to the cleaning surface again. This torque will allow the operator to save more effort when operating the device for cleaning and trying to properly fit the air inlet to the cleaning surface.

The offset distance L1 is determined to be 5mm to 30mm, preferably 10mm to 25mm, to provide a suitable moment arm for the aforementioned torque, and the torque resulting from the offset of the body axis from the handle axis when the device is held by the hand will provide a reasonable range of resistance to operation and will drive the device back up with the correct amount of force.

In figure 13 there is shown another cleaning device of similar construction and depicting the use of the device, as shown in the figure, when the device is held by hand and operated, the inlet vent is supported on a cleaning surface, the device as a whole is rotated non-directionally about the axis of the handle, and during this process the main body applies a torque to the device as a whole, which torque is applied to the device, the situation shown in the figure is that the cleaning device is deflected and one side of the inlet vent is lifted, the torque causing the lifted side of the device to flip down, thereby achieving the "return" effect, restoring the inlet vent to a device properly engaging the cleaning surface, maintaining the properly engaged condition for a longer period of time during operation of the device, and maintaining good air tightness against the cleaning surface for a majority of the time during cleaning of the device, therefore, the cleaning efficiency is improved, the repeated cleaning times are reduced, and the cruising ability of the device is improved.

In some implementations, the air inlet duct is disposed coaxially with the main body.

Alternatively, as shown in fig. 2, the air inlet duct 300 has a third axis, the first axis being parallel to the third axis and offset downwardly by a distance L2 of 5mm to 35 mm. The offset distance L1 and the offset distance L2 are matched to form supports of the handle and the air inlet pipe for two ends of the main body, the axes of the supports at the two ends are offset from the axial direction of the main body, the whole torque of the main body for the device can be better applied to the air inlet, the axis of the main body is offset downwards relative to the axis of the air inlet pipe and the axis of the handle, the handle can be used for adjusting the angle of the air inlet conveniently, and the operation experience is improved.

The offset distance L2 is determined to be 5mm to 30mm, preferably 10mm to 25mm, to provide a suitable moment arm for the torque applied by the main body to the air inlet, and the torque resulting from the offset of the axis of the main body from the axis of the air inlet duct when the device is held in the hand will provide a reasonable range of resistance to operation and will drive the device back up with the correct amount of force.

The second axis and the third axis may be coincident or substantially coincident.

In a further implementation, as shown in fig. 3, the second axis is parallel to the third axis and is offset downward by an offset distance L3 of 3mm to 10 mm. In this implementation, the torque of the handle for controlling the support angle of the air inlet and the rotation torque of the main body acting on the whole device are reasonably configured, and particularly, the rotation torque provided by the main body is amplified to a certain extent, so that the stability of the air inlet supported on the cleaning surface is improved.

In addition, referring to fig. 4 and 10, the air inlet duct 300 includes an air inlet, which is provided such that an upper side 310 protrudes forward compared to a lower side 320; the underside 320 of the intake vent is formed with a straight edge perpendicular to the first axis. The straight edge provides a foundation and a fulcrum for supporting the air inlet on the cleaning surface, when the air inlet is completely attached to the cleaning surface in a straight-to-straight mode, the air inlet and the cleaning surface have good air tightness, at the moment, the upper side of the air inlet is pressed to the cleaning surface until the whole air inlet is attached to the cleaning surface, and the best air tightness can be attached. After the straight-changing part is lifted up, the air inlet can be favorably and quickly recovered to the state that the straight edge is completely attached to the cleaning surface by the aligning moment of the main body, the straight edge structure also provides a relatively determined aligning state, and when the straight edge is completely attached to the cleaning surface, the aligning moment of the main body is offset by the supporting moment, namely, as long as the straight-changing part is attached to the cleaning surface, the state of the air inlet pipe also tends to be stable.

In addition, in the various implementations illustrated in fig. 1 to 3 and 6 to 11, the end surface of the air inlet is an inclined surface inclined with respect to the first axis. The air inlet is set to be in the shape, when the air inlet is attached to the cleaning surface, all sides of the air inlet are pressed on the cleaning surface, very high air tightness can be obtained, the vacuum degree in the air inlet pipe is high, key cleaning can be achieved, correspondingly, under the cleaning state, the inclined plane structure also provides proper support, the whole stability of the device is kept, the torque applied to the device by the main body is steadily offset by the supporting force, shaking occurs, the air inlet is partially lifted up, the torque can enable the device to quickly return to the right, too large deviation does not occur in the position and the angle of the recovery place, and the key cleaning effect is favorably improved.

Preferably, the air inlet has an inclination of an inclined plane of 30 ° to 60 °. Within this angular range, the air inlet will be supported relatively stably by the cleaning surface and will remain stable for a period of time during which intensive cleaning is performed.

Certainly, as another implementation, the end face of the air inlet may also be an arc-shaped face, as shown in fig. 5, the arc-shaped face may not be completely shielded by the cleaning surface, there is lateral air inlet, and thus the range of suction cleaning is expanded, and the arc-shaped face may also cooperate with some non-flat cleaning surfaces, such as the edges of a sofa, a seat, etc., the arc-shaped face may press the cleaning surface with the arc-shaped edges at both sides, providing a larger attachment area, increasing the reliability of support, and the device tends to return to a relatively definite state after deflecting back.

As a preferred implementation, referring to fig. 1-5, the torso portion 110 has a uniform profile throughout its extent along the first axis, or as in fig. 6 or 7, has a uniform profile over at least half of its length along the first axis. As already explained above, in the present invention, defining the axes of the parts as the geometric centerlines of the part structures, having a uniform contour means that the torso part will exert a righting torque on the device as a whole in a more uniform manner.

Referring to fig. 4, in one implementation, the width B1 of the handle 200 is 0.3 to 0.7 times the width B2 of the torso member 110. The difference in width between the handle and the body portion, and the distance between the palm and the outer wall of the handle is smaller than the radial dimension of the body portion, so that the torque provided by the body portion and acting on the whole is amplified in operation sense, an operator can more obviously sense the rotating process of the whole device in a returning and correcting mode, and actually, when the palm holding the handle only keeps supporting the handle and does not rotate or move the handle, the whole device naturally returns and corrects.

Furthermore, in various implementations illustrated in fig. 1-13, the upper surface of the air inlet duct 300 is flush with the upper surface of at least a portion of the main body 100; the upper surface of the handle 200 is flush with at least part of the upper surface of the body 100. The axial line of the main body deviates downwards relative to the axial line of the handle, and the axial line of the main body also deviates downwards relative to the axial line of the air inlet pipe, so that the thickness of the air inlet pipe in the vertical direction is only required to be smaller than that of the main body in the vertical direction, and the thickness of the handle in the vertical direction is smaller than that of the main body in the vertical direction. Namely, the thickness dimension of the main body can be controlled, and the thin design can be realized. The design is favorable for reducing the maximum radial dimension of the device, and the device can extend into a plurality of narrow spaces for cleaning operation.

The profile of the main body 110 may be regular rectangular or square as shown in fig. 10, or may be circular arc surfaces formed on both sides as shown in fig. 11, and the distances from the surfaces of the circular arc surfaces to the axis of the main body are approximately the same.

Referring to fig. 9, a filter 120 and a suction motor 130 are provided in the main body 100, and an axis of the filter 120 is substantially coincident with the first axis; the axis of the suction motor 130 is substantially coincident with the first axis. The filter 120 and the suction motor 130 are arranged on the basis of a first axis of the main body provided offset downwards with respect to a second axis of the handle, with their axes substantially coinciding with the first axis, the internal arrangement being optimised such that the deadweight of the filter and the suction motor also provides a torque for returning the device to a positive position when the device as a whole is offset or tilted.

In addition, in a particular embodiment, as shown in FIG. 9, the handle 200 will be removably connected to the main body 100. In certain implementations where it is desirable to reduce the device receiving space or otherwise limit the axial receiving dimension of the device, it may be desirable to be able to remove the handle from the body.

In addition, a transition part 140 is formed between the main body and the handle, and the transition part 140 is, for example, a circular arc transition section as shown in fig. 8 or fig. 12, and similarly, a transition part can be formed between the main body and the air inlet pipe, and the transition part can also be a circular arc transition part.

Claims

1. A hand-held cleaning device, comprising:

an air inlet pipe extending forward from the front end of the main body;

the first axis is parallel to the second axis, the first axis being offset downwardly relative to the second axis by an offset distance of 5mm to 30 mm.

2. The hand-held cleaning apparatus according to claim 1, wherein the air inlet duct has a third axis, the first axis being parallel to the third axis, the first axis being offset downwardly from the third axis by a distance of 5mm to 35 mm.

3. The hand-held cleaning device of claim 2, wherein the second axis is parallel to the third axis, the second axis being offset downwardly relative to the third axis by a distance of 3mm to 10 mm.

4. The hand-held cleaning device according to claim 1, comprising an air inlet provided with an upper side projecting forward compared to a lower side; the lower side of the air inlet is provided with a straight edge perpendicular to the first axis.

5. The hand-held cleaning apparatus according to claim 4, wherein the end surface of the air inlet is a sloped surface that is inclined with respect to the first axis.

6. A hand-held cleaning appliance according to claim 5, wherein the angle of inclination of the inclined surface is from 30 ° to 60 °.

7. The hand-held cleaning apparatus according to claim 1, wherein the torso portion has a uniform profile over at least half of a length extending along the first axis.

8. The hand-held cleaning device according to claim 1 or 7, wherein the width of the handle is 0.3 to 0.7 times the width of the torso.

9. The hand-held cleaning apparatus according to claim 1, wherein an upper surface of the air inlet duct is flush with at least a portion of an upper surface of the main body; an upper surface of the handle is flush with at least a portion of an upper surface of the body.

10. A hand-held cleaning appliance according to any one of claims 1, 7 or 9, wherein a filter and suction motor are provided within the body, the axis of the filter being substantially coincident with the first axis; the axis of the suction motor is substantially coincident with the first axis.