WO2018086533A1

WO2018086533A1 - Self-propelled floor treatment device and suction nozzle

Info

Publication number: WO2018086533A1
Application number: PCT/CN2017/109938
Authority: WO
Inventors: 黎少将
Original assignee: 科沃斯机器人股份有限公司
Priority date: 2016-11-08
Filing date: 2017-11-08
Publication date: 2018-05-17
Also published as: CN108056703A; EP3539435A4; US20190343350A1; EP3539435A1

Abstract

A self-propelled floor treatment device and a suction nozzle (1000). The self-propelled floor treatment device comprises a main device body and a suction nozzle (1000) connected thereto. A suction inlet (100) is formed at the bottom of the suction nozzle. In an operation process, the suction nozzle (1000) is arranged to move in a forward direction (A). A front sealing strip (1003) is provided at a front side of the suction inlet (100), and comprises a fixed end (10031) and a free end (10032) extending to a working surface (B). The front sealing strip (1003) is flexible and is configured to deviate from the forward direction, so as to form, in front of a projection of the free end (10032) on the working surface (B), a projection of the fixed end (10031) on the working surface (B). The surrounding sealing at the periphery of the suction inlet (100) of the suction nozzle (1000) enhances vacuum suction of the suction inlet (100), thereby increasing dust removal capability of the self-propelled floor treatment device. The configuration direction, shape, and material of the front sealing strip (1003) ensures effective suctioning of large dust particles, maintaining a high degree of vacuum strength of the suction inlet (100), and providing high dust removal efficiency.

Description

Self-moving ground treatment device and nozzle

Technical field

The invention relates to a self-moving ground processing device and a nozzle, and belongs to the technical field of small household appliance manufacturing.

Background technique

The cleaning device or system for relying on vacuum suction for ground dust removal is widely used because of its convenient operation and high efficiency, and the suction force of the suction nozzle of the suction nozzle plays a vital role in the dust removal effect during the operation, and the suction port The amount of vacuum suction depends on how the suction seal is placed. 1 and 2 are respectively one and two schematic diagrams of the bottom structure of the nozzle of the prior cleaning system. As shown in FIG. 1 and FIG. 2, the suction sealing structure of the existing cleaning system mainly includes two types. Specifically, if the cleaning system is in the forward direction during the operation, that is, the A direction in FIG. As can be seen from Fig. 1, the soft rubber strip 200 is sealed at the rear and the left and right sides of the suction port 100, and the front end is open; the vacuum suction loss of the suction port of this structure is large, and the dust removing effect is poor. It can be seen from Fig. 2 that the other mouth sealing structure is that the suction port is sealed once, the front end seal is made of hard material, and the front end is opened to open the gap 300 to facilitate the inhalation of coarse particles; the structure of the device has large movement resistance and cannot be inhaled large. particulates. Briefly, the bottom of the suction port of the existing cleaning system is usually provided with a sealing strip for increasing the vacuum at the suction port; however, if the front side sealing strip of the suction port is completely sealed, the front sealing strip is also moved as the suction opening moves forward. The large particles of dust in front of the suction port will be pushed forward, which will also affect the working efficiency of the cleaning system.

3 is a schematic view showing the overall structure of a vacuum cleaner with an authorization bulletin number of CN 101524259B. As shown in FIG. 3, the prior art discloses a nozzle having a suction port at the bottom, and the front side seal of the suction port is provided with an opening 15, which can be completely or partially closed. Under normal working conditions, the opening 15 is closed to maintain a large vacuum at the suction opening, and when it is necessary to absorb large particle dust, the opening 15 is opened to absorb coarse dirt. However, the suction port has two major drawbacks. First, it is necessary to provide an adjusting device for adjusting the opening or closing of the front sealing strip opening. Secondly, when the opening of the current sealing strip is opened, the vacuum degree of the suction opening is lowered, and the efficiency of vacuuming is lowered.

Therefore, in view of the above various deficiencies existing in the prior art, a vacuum cleaner capable of sucking coarse particle dust while maintaining the vacuum of the suction port is invented.

Summary of the invention

The technical problem to be solved by the present invention is to provide a self-moving ground treatment device and a suction nozzle, and the sealing around the suction opening of the suction nozzle improves the vacuum suction in the suction opening, thereby improving the self-moving ground treatment device. Dust removal capability; especially the orientation, shape and material of the front sealing strip ensure that the invention can The dust removal efficiency is high in effectively absorbing the coarse particle dust and maintaining the vacuum of the suction port.

The technical problem to be solved by the present invention is achieved by the following technical solutions:

A self-moving ground treatment device comprises at least a main body of the device and a nozzle connected thereto, the bottom of the suction nozzle is provided with a suction port, the forward direction of the suction nozzle is forward direction during the operation, and the front sealing strip is provided on the front side of the suction opening The front sealing strip includes a fixed end and a free end, the front sealing strip adopts a flexible sealing strip, and the front sealing strip is disposed to be offset from the forward direction such that the projection of the fixed end on the working surface is located at the free end on the working surface Before the projection on.

Specifically, the front seal strip is disposed on the front side of the suction port through the fixed end. In order to increase the deformability of the front seal, the thickness of the fixed end is < the thickness of the free end. Preferably, the front sealing strip has a thickness of no more than 1.8 mm.

The front seal strip may have an arc shape as needed. In particular, when a roller brush is further installed at the suction opening of the nozzle, the front sealing strip is concentric with the roller brush in order to ensure the dust removing effect and make the nozzle structure compact, and the front sealing strip does not interfere with the roller brush. Settings.

Further, a suction cover plate is mounted on the bottom of the nozzle, and the suction port is opened in a middle portion of the suction cover plate, and the suction cover plate includes a left side cover and a right side cover respectively on the left and right sides, each of which is respectively provided The cover includes a front side inclined portion and a rear side flat portion, and a contact point of the free end of the front seal strip with the work surface is located at the foremost end of the flat portion or at the rearmost end.

In addition, the left and right side covers of the mouthpiece cover are covered with a cushion.

In order to improve the deformation ability of the front sealing strip, the front sealing strip is provided with a plurality of slits at intervals.

In order to ensure the sealing property, the width of the slit is ≤ 5 mm.

In order to increase the deformability of the front sealing strip, when the longitudinal length of the front sealing strip is not particularly large, such as less than 10 mm, the length of the slit is the same as the longitudinal length of the front sealing strip. Alternatively, the length of the slit is set to be greater than 3 mm so that the front seal can run over most of the large particulate dust, such as rice grains and the like.

Similarly, in order to improve the deformation ability of the front sealing strip, a plurality of slits may be provided on the front sealing strip at intervals.

In order to increase the degree of vacuum of the mouthpiece, the length of the front sealing strip is greater than the height of the fixed end from the working surface such that the free end of the front sealing strip is pressed against the working surface when the nozzle is in operation.

When working on a working surface such as a floor, in order to prevent the front seal from scratching the ground and causing noise during walking, the front end of the front seal has a certain gap between the free end and the work surface. Meanwhile, in order not to affect the sealing performance of the front sealing strip, the height of the free end of the front sealing strip from the working surface is not more than 1.5 mm.

The invention also provides a suction nozzle, the bottom of which is provided with a suction opening, wherein the forward direction of the suction nozzle is forward in the operation, the front sealing side is provided with a front sealing strip, and the front sealing strip comprises a fixed end and a free end. The front seal strip A flexible sealing strip is used and the front sealing strip is arranged to be offset from the forward direction such that the projection of the fixed end on the working surface precedes the projection of the free end on the working surface.

In summary, the present invention provides a self-moving ground treatment device and a suction nozzle. The sealing around the suction port on the suction nozzle improves the vacuum suction force in the suction port, thereby improving the dust removal capability of the self-moving ground treatment device; The arrangement is such that the projection of the fixed end on the working surface is before the projection of the free end on the working surface, and the front sealing strip is a flexible sealing strip, such as made of a flexible material, in contact with large particles of dirt during the operation. When it is easier to bend to grind coarse particles of dust, it quickly passes over the front sealing strip into the suction port, and is brought into the dust box under the action of the roller brush and/or vacuum suction to complete the dust removal work; The invention can effectively absorb the coarse particle dust and maintain the vacuum degree of the suction port, and the dust removal efficiency is high.

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

DRAWINGS

1 is a schematic structural view of a bottom of a nozzle of a conventional cleaning system;

2 is a schematic view showing the structure of the bottom of the nozzle of the existing cleaning system;

3 is a schematic view showing the overall structure of a vacuum cleaner with an authorization bulletin number of CN 101524259B;

4 is a schematic structural view of a bottom of a nozzle according to an embodiment of the present invention;

5 is a schematic structural view of a side surface of a nozzle according to an embodiment of the present invention;

6 is a schematic structural view of a bottom of a nozzle according to Embodiment 2 of the present invention;

7 is a schematic structural view of a front surface of a nozzle according to Embodiment 2 of the present invention;

8 is a schematic structural view of a bottom portion of a nozzle according to an embodiment of the present invention;

Figure 9 is a schematic view showing the structure of the front sealing strip of the present invention.

detailed description

Embodiment 1

4 is a schematic structural view of a bottom portion of a nozzle according to an embodiment of the present invention; and FIG. 5 is a schematic structural view of a side surface of a nozzle according to an embodiment of the present invention. As shown in FIG. 4 and in conjunction with FIG. 5, the present invention provides a self-moving ground processing apparatus comprising at least a main body (not shown) and a nozzle 1000 connected thereto, and the suction nozzle 1000 is provided with a suction port 100 at the bottom thereof. The direction A in FIG. 4 and FIG. 5 is the forward direction of the nozzle 1000 during the operation, and the forward direction is set to the forward direction. The front side of the suction port 100 is provided with a front sealing strip 1003, and the rear side is provided with a rear sealing strip 1002. As shown in FIG. 5, the front seal strip 1003 has an arc shape, and includes a fixed end 10031 and a free end 10032. The front seal strip 1003 is disposed on the front side of the suction port 100 through the fixed end 10031. The front sealing strip 1003 is a flexible sealing strip, such as TPU, TPE, Made of silica gel, PUC and other materials to ensure that the front seal has good elastic deformation ability. At the same time, the front sealing strip 1003 is arranged to deviate from the forward direction such that the projection of the fixed end 10031 on the working surface B precedes the projection of the free end 10032 on the working surface B. Specifically, as shown in FIG. 5, the shape of the front sealing strip 1003 is set to an arc shape, and the free end 1032 thereof is biased toward the suction port 100. Of course, it is also possible to arrange the front sealing strip as a slope, assuming that the shape of the front sealing strip 1003 is a straight inclined surface, that is, the direction in which the inclined surface is formed is inclined with respect to the working surface B, and between the working surface B The angle is between 30 ° and 45 °. When the self-moving ground treatment device is sucked forward, since the front sealing strip itself is disposed rearward, such as the above-mentioned curved or inclined surface, when the free end of the front sealing strip hits large particles of dust (such as a cigarette butt), it is easy to lift upwards. Grinding large particles of dust, convenient for large particles of dust to enter the suction port, enter the dust box under the action of the roller brush and/or vacuum suction and store.

In order to improve the deformation ability of the front sealing strip when encountering large particle dust, the thickness of the front sealing strip should not be too thick, and the thickness thereof is not more than 1.8 mm. If the thickness of the front seal is large, it will not deform in time when it encounters large particles of dust, but will push the large particles of dust forward to prevent large particles of dust from entering the mouth. Of course, if the thickness of the fixed end 10031 is made thinner, such as thinning the fixed end 10031, the front sealing strip is more easily deformed. Figure 9 is a schematic view showing the structure of the front sealing strip of the present invention. In the embodiment shown in Fig. 9, the thickness of the fixed end 10031 is 0.6 mm - 0.8 mm, and the thickness of the other positions of the front sealing strip 1003 is 0.8 mm - 1.8 mm. And the fixed end 10031 is slightly thinned (for example, the fixed end is dug a small groove), the other positions of the front sealing strip 1003 can be slightly thicker, greatly increasing the range of the front sealing strip selection material.

In order to facilitate the disassembly of the roller brush, a suction port cover 1001 is generally installed at the bottom of the suction nozzle 1000. The suction port 100 is opened in the middle of the suction port cover 1001, and the suction port cover 1001 includes left side faces respectively disposed on the left and right sides. A cover and a right side cover (not shown), as shown in FIG. 4, each cover includes a front side inclined portion 10011 and a rear side flat portion 10012. Preferably, in conjunction with FIG. 5, the contact point of the free end 10032 of the front sealing strip 1003 with the working surface B is located at the forefront of the planar portion 10012 or at the rear of the foremost end, that is, the front seal and the front. There is little gap between the faces to increase the vacuum at the mouth. In addition, in order to prevent the suction cover from scratching and damaging the working surface, the left and right side covers of the mouthpiece cover 1001 are further covered with a cushion. In order to improve the sealing effect, the longitudinal length of the front sealing strip 1003 (the front sealing strip is transverse to the cleaning width direction of the suction opening, the suction cleaning width direction is perpendicular to the traveling direction A) is greater than the height of the fixed end 10031 from the working surface B. When the nozzle 1000 is in operation, the free end 10032 of the front sealing strip 1003 is pressed against the working surface B. At the same time, when the free end is in the process of long-term work, when the tip is rubbed against the working surface, the free end still has enough reserved length to maintain the seal, which significantly improves the service life of the front seal.

However, the above-mentioned front sealing strip is also pressed against the working surface, and there is a drawback in that, especially when working on a working surface such as a floor, the front sealing strip is in contact with the floor, which causes a large noise. Therefore, when actually setting the front sealing strip, if considering the floor and other work As the surface, the front sealing strip has a certain gap from the working surface. For example, a gap is provided between the free end 10032 of the front sealing strip 1003 and the working surface B, and the gap height is 0-1.5 mm.

As shown in FIG. 4 and in conjunction with FIG. 5, the working process of the nozzle 1000 provided by the present invention is as follows: a self-moving ground treatment device equipped with a suction nozzle 1000, the suction opening cover 1001 abuts against the working surface during operation B and walking with the moving ground treatment device, the rear of the suction port 100 is sealed by the rear scraper 1002, and the left and right sides are supported by the hard plane of the suction cover 1001, that is, the flat portion 10012, or by the suction cover. A cushion (not shown) on the left and right side covers of the panel 1001 is sealed, and the front end of the mouthpiece 100 is sealed by the front weather strip 1003. The sealing disposed around the suction port 100 by the above arrangement increases the degree of vacuum at the suction port, thereby improving the dust removal capability of the self-moving floor treatment device. Since the front sealing strip 1003 is disposed rearward, and the front sealing strip 1003 is a flexible sealing strip, and its shape is curved, the front sealing strip 1003 is mutually squeezed when it contacts the large particle dirt during the operation. The pressing action deforms the front sealing strip 1003 itself, and the curved shape is more easily bent to crush coarse dust particles when squeezed, and large particulate dirt can pass over the front sealing strip 1003 into the suction opening 100, in the roller brush and/or vacuum. Under the action of suction, large particles of dirt are brought into the dust box, and the ground treatment device is moved to complete the dust removal work. That is, the present invention is capable of efficiently absorbing coarse particle dust and maintaining the vacuum of the mouthpiece. In addition, in order to improve the dust removing effect, a roller brush (not shown) is also provided in the suction port. Further, in order to ensure the dust removing effect and make the nozzle structure compact, the roller brush can be disposed concentrically with the front sealing strip 1003 so that the two do not interfere during the operation.

Embodiment 2

6 is a schematic structural view of a bottom portion of a nozzle according to Embodiment 2 of the present invention; and FIG. 7 is a schematic structural view of a front surface of a nozzle according to Embodiment 2 of the present invention. As shown in FIG. 6 and in conjunction with FIG. 7, the present embodiment is an improvement on the basis of the first embodiment, and the deformation capability of the front seal strip can be adjusted by adjusting the arrangement of the front seal strip 1003. Specifically, in order to improve the deformability of the front seal strip 1003, a plurality of slits 1004 are spaced apart from the front seal strip 1003. More preferably, the width of each slit 1004 is ≤ 5 mm. If the gap is too large, the vacuum at the suction port is significantly reduced. And the length of the slit 1004 is substantially the same as the longitudinal length of the front sealing strip 1003, further improving the deformation ability of the front sealing strip.

However, the larger the gap length, the worse the sealing effect and the lower the vacuum of the suction port. In actual use, the length of the slit can be flexibly set according to the size of the large particles on the working surface. For example, if the length of the slit is set to be larger than 3 mm (generally, the diameter of the particles such as rice grains is 3 mm) and is smaller than the longitudinal length of the front sealing strip, the front sealing strip has a good cleaning effect in a working environment in which the dust particles are not too large.

The other technical features in this embodiment are the same as those in the first embodiment. For details, refer to the foregoing first embodiment, and details are not described herein again.

Embodiment 3

FIG. 8 is a schematic structural view of a bottom portion of a nozzle according to an embodiment of the present invention. As shown in FIG. 8, the present embodiment is also an improvement on the basis of the first embodiment. Similarly, in order to improve the deformation ability of the front seal strip 1003, a plurality of slits 1005 are spaced apart from the front seal strip 1003. However, the gap is usually larger than 1 cm, which is larger than the gap in the second embodiment, and the sealing effect is slightly inferior.

Embodiment 4

As shown in FIG. 4 , the present invention further provides a suction nozzle 1000 having a suction opening 100 at the bottom thereof, wherein the forward direction A of the suction nozzle during the operation is forward, and the front sealing strip 1003 is disposed on the front side of the suction opening 100. The front sealing strip 1003 includes a fixed end 10031 and a free end 10032, the front sealing strip adopts a flexible sealing strip, and the front sealing strip is disposed to be offset from the forward direction, so that the projection of the fixed end 10031 on the working surface B is free End 10032 precedes projection on working surface B.

In summary, the present invention provides a self-moving ground treatment device and a suction nozzle. The sealing around the suction port on the suction nozzle improves the vacuum suction force in the suction port, thereby improving the dust removal capability of the self-moving ground treatment device; The arrangement is such that the projection of the fixed end on the working surface is before the projection of the free end on the working surface, and the front sealing strip is a flexible sealing strip, which is more easily bent to contact when it is in contact with large particles of dirt during the operation. The coarse particles are dusted, and they are quickly passed over the front sealing strip into the suction port, and are brought into the dust box under the action of the roller brush and/or vacuum suction to complete the dust removal work. That is to say, the present invention can effectively absorb coarse particle dust and maintain the vacuum of the mouthpiece, and the dust removing efficiency is high.

Claims

A self-moving ground treatment device comprises at least a main body of the device and a nozzle (1000) connected thereto, and a suction port (100) is opened at the bottom of the nozzle, and the forward direction of the nozzle during the operation is forward, before the suction port The front sealing strip (1003) is provided on the side, the front sealing strip comprises a fixed end (10031) and a free end (10032) extending toward the working surface (B), wherein the front sealing strip adopts a flexible sealing strip, And the front sealing strip is arranged to be offset from the forward direction such that the projection of the fixed end on the working surface precedes the projection of the free end on the working surface.
The self-moving ground treatment apparatus according to claim 1, wherein said front seal strip (1003) is disposed on a front side of said suction opening (100) through said fixed end (10031), and a thickness of said fixed end <The thickness of the free end (10032).
The self-moving ground treatment apparatus according to claim 1, wherein said front weather strip (1003) has a thickness of not more than 1.8 mm.
The self-moving ground treatment apparatus according to claim 3, wherein the front seal strip (1003) has an arc shape.
The self-moving ground treatment apparatus according to claim 4, wherein a roller brush is further mounted at the suction opening (100) of the nozzle (1000), and the front sealing strip (1003) is concentric with the roller brush. Settings.
The self-moving ground treatment device according to claim 1, wherein a suction cover plate (1001) is mounted on the bottom of the suction nozzle (1000), and the suction port (100) is opened in a middle portion of the suction cover plate, and the suction cover is The board includes a left side cover and a right side cover respectively provided on the left and right sides, each cover includes a front side inclined portion (10011) and a rear side flat portion (10012), the front seal strip (1003) The contact point of the free end (10032) with the working surface (B) is located at the foremost end of the planar portion or at the rear of the foremost end.
The self-moving ground treatment apparatus according to claim 6, wherein the left and right side covers of the mouthpiece cover (1001) are covered with a cushion.
The self-moving ground treatment apparatus according to claim 1, wherein said front weather strip (1003) is provided with a plurality of slits (1004) spaced apart therefrom.
A self-moving ground treatment apparatus according to claim 8, wherein said slit (1004) has a width of ≤ 5 mm.
The self-moving ground treatment apparatus according to claim 8, wherein the slit (1004) has the same length as the longitudinal length of the front seal (1003);

Alternatively, the length of the slit (1004) is greater than 3 mm.
The self-moving ground treatment apparatus according to claim 1, wherein said front weather strip (1003) is provided with a plurality of slits (1005) spaced apart therefrom.
The self-moving ground treatment apparatus according to claim 1, wherein a length of the front sealing strip (1003) is greater than a height of the fixed end (10031) from the working surface (B) such that the suction nozzle (1000) In operation, the free end (10032) of the front seal is pressed against the work surface.
The self-moving ground treatment apparatus according to claim 1, wherein a gap is provided between the free end of the front seal strip (1003) and the work surface.
A self-propelled ground treatment apparatus according to claim 13 wherein said gap is no greater than 1.5 mm.
a nozzle having a suction opening at the bottom thereof, wherein the suction nozzle advances in a forward direction during operation, a front sealing strip is provided on the front side of the suction opening (100), and the front sealing strip (1003) includes a fixed end (10031) And a free end (10032), wherein the front seal strip is a flexible seal strip and the front seal strip is disposed offset from the forward direction such that the projection of the fixed end on the work surface is at the free end on the work surface Before the projection.