KR102573249B1 - Squeegee for a floor cleaning machine - Google Patents

Abstract

According to the present invention, a squeegee base has a top wall, wherein a front wall and a back wall extend from the top wall, and a suction channel is formed between the front wall and the back wall, and the back wall is connected to the floor surface to be cleaned. Characterized by a squeegee for a floor cleaner comprising a squeegee base having a contact edge provided for contact and a suction connection connected to a suction channel and connectable with a suction device of the floor cleaner, wherein the cleaning fluid is supplied to the suction channel. A cleaning device for cleaning is provided, the cleaning device having a supply line for the cleaning liquid and a connecting element for connecting the cleaning device, the connecting element being provided on the squeegee base and connecting with a suction channel for supplying the cleaning liquid. has been

Description

Squeegee for floor cleaner {SQUEEGEE FOR A FLOOR CLEANING MACHINE}

The present invention relates to a squeegee base comprising an upper wall and a suction channel connected to it, preferably extending beyond the upper wall, and connectable to a suction device of a floor cleaner. It relates to a squeegee for a floor cleaner having a suction connection, wherein a front wall and a rear wall extend from the top wall, and there is a gap between the front wall and the rear wall. A suction channel is formed, and the back wall has a contact edge provided for contacting the floor surface to be cleaned. The invention also relates to a floor cleaner with such a squeegee and a method of operating such a floor cleaner.

In the case of floor cleaners and in particular scrubbing machines known from the prior art, a so-called squeegee is used to remove liquid from the floor surface to be cleaned, which liquid is present on the floor surface to be cleaned before the cleaning is started. It may contain dirt as previously provided by the cleaning device of the floor cleaner. The foregoing is carried out by means of a vacuum, wherein the vacuum is provided via the suction device of the floor cleaner, and the squeegee, in particular the suction channel of said squeegee, is operated with this vacuum.

Dirt accumulates during vacuum operation, especially in the suction channels of the squeegees, and these squeegees must be cleaned regularly. This cleaning of the squeegee is time consuming and is often cumbersome.

It is an object of the present invention to provide a squeegee that can be cleaned in a simple manner.

The above object of the present invention is solved by means of the squeegee of claim 1. The squeegee according to the present invention may have a flushing device for supplying a washing liquid to the suction channel, and the flushing device is connected to a supply line used for the washing liquid and the flushing device. It has a connection element, which connection element is provided on the squeegee base and is connected to the suction channel for supplying the cleaning liquid.

With increasing operation time and repeated shutdown of the floor cleaner, dirt particles gradually accumulate on the back wall bordering the squeegee and suction channel, where it can dry to a hard dirt layer. According to the present invention, the cleaning liquid, in particular the cleaning liquid, is supplied from the cleaning liquid tank of the floor cleaner, the connecting element of the squeegee and flows into the suction channel, so that the squeegee according to the present invention can be cleaned in a particularly easy way by means of the cleaning device.

Since this cleaning liquid can be sucked back in via suction, ie via a suction device provided in the floor cleaner, in particular the suction channel can be cleaned in a simple manner. Such cleaning procedures can be carried out with simple and timed intervals that are shorter than the time intervals between other cleaning procedures, as they are associated with much lower costs. This allows the accumulated dirt particles to be at least partially removed before they harden into a hard soil layer on the squeegee.

According to a preferred embodiment of the present invention, the front wall of the suction channel can be provided such that the entire length of this front wall does not extend to the floor surface to be cleaned. This simplifies the suction of liquid or soiled liquid from the floor surface to be cleaned. Also, since the connecting element is formed as a hose coupling, it is easy to connect the supply line for the cleaning liquid.

According to a preferred embodiment, the squeegee may have a bent squeegee base, and an end of the bent squeegee base is placed in front of the suction connection when viewed from the running direction of the floor cleaner. In addition, the curvature of the rear wall can be in particular stepwise smaller than the curvature of the front wall.

According to another preferred embodiment of the present invention, the flushing device may have a flushing fluid opening connected to the connecting element, through which flushing fluid opening can flow into the suction channel, in particular The washing liquid opening is spaced apart from the suction connection. Due to the increased distance between the cleaning liquid opening and the suction connection, the long section of the suction channel can be cleaned reliably. In this embodiment, the cleaning action is enhanced through the cleaning liquid described above.

According to another preferred embodiment of the present invention, the squeegee base, the front wall and the rear wall extend between the first end and the second end, in particular the suction connection is centered between the first end and the second end. are arranged Finally, in this embodiment the washing liquid opening is arranged at the first end. In this embodiment, the entire section between the first end and the suction connection can be reliably cleaned when the cleaning liquid is introduced. Similarly, it is also conceivable for the second end to have another cleaning liquid opening connected to the connecting element, so that the section between the second end and the suction connection can also be cleaned.

According to another preferred embodiment of the present invention, a plurality of washing liquid openings may be provided, the plurality of washing liquid openings being connected to the connecting element, through which washing liquid openings may flow into the suction channel; , the washing liquid openings are arranged along the back wall keeping a distance from each other. The washing liquid openings may maintain a constant distance from each other. In this embodiment, the cleaning action can be continuously improved.

According to another preferred embodiment of the invention, the connecting element is arranged on the top wall bordering the suction channel. The connecting element can open in the direction of the floor surface to be cleaned when the squeegee is arranged in the floor cleaner. A particularly simple construction is provided for the foregoing.

According to another preferred embodiment of the present invention, the squeegee base is formed as a hollow body having an inner space, and the inner wall section of the hollow body facing the suction channel is formed by the upper wall, , the washing liquid opening or a plurality of washing liquid openings are arranged in this top wall. In this embodiment, it is unnecessary to provide the squeegee base with a pipe or the like for connecting the cleaning fluid opening with the connection element. Rather, the interior space forms a connection, and preferably the connection element can be provided on the squeegee base so that the cleaning liquid can pass through this connection element and enter the interior space of the squeegee base. According to another preferred way, the suction connection can extend beyond the top wall and the interior space.

According to another preferred embodiment of the present invention, the cleaning device may have one or a plurality of cleaning liquid openings, the first end of the cleaning device being connected to the connecting element, and the second end of the cleaning device being connected. The end is connected with one or a plurality of cleaning liquid openings. In this embodiment, it is not necessary for the squeegee base to be formed as a hollow body.

In addition, the above object according to the present invention is solved through a floor cleaner equipped with a squeegee according to the present invention. The floor cleaner includes a chassis for moving the floor cleaner onto the floor surface to be cleaned, a cleaning device provided on the chassis and providing a cleaning liquid to the floor surface to be cleaned, a dirt liquid tank, and dirt in the dirt liquid tank. It may be provided with a suction device for sucking the liquid and one of the above-mentioned squeegees. The squeegee is arranged in a rear traveling direction of the cleaning device, and the suction connection part is connected to the suction device. The floor cleaner according to the invention provides the advantages already described in relation to squeegees.

Preferably, the floor cleaner may have a jacking device configured to support the squeegee. The jacking device is provided to reverse the squeegee from a stationary state in which the contact edge is detached from the floor surface to be cleaned to an operating state in which the contact edge is attached to the floor surface to be cleaned.

Preferably, the floor cleaner may be provided with a cleaning liquid tank connected to the connection element. The cleaning liquid may form a cleaning liquid. The washing liquid tank may be used as a reservoir for washing liquid. Thus, the cleaning liquid can be easily supplied to the suction channel. According to an optional embodiment, since the connecting element may be formed to be connected to the water for living connection, water for living may be used as the washing liquid.

Finally, the object according to the present invention is solved through the method for operating a floor cleaner described above, which method includes the following steps:

- supplying cleaning liquid from a reservoir for cleaning liquid past the connection element into the suction channel, and

- activating the suction device to suck the cleaning liquid out of the suction channel.

Preferably, in the method described above, the reservoir is formed by a washing liquid tank, and the washing liquid tank is connected to the connecting element, so that the washing liquid is supplied to the connecting element as a washing liquid for washing or cleaning. In particular, the cleaning liquid can be easily supplied to the suction channel while the floor cleaner is operating.

Optionally, during the first step, the connecting element is connected to the domestic water connection. That is, the user can clean the squeegee as needed or according to a maintenance plan.

Finally, the reservoir is formed by the washing liquid tank, and it may also be possible that the washing liquid tank is connected to the connecting element, and the washing liquid flows through the connecting element at regular time intervals during normal operation of the floor cleaner. Gina is supplied to the suction channel, whereby the suction channel can be regularly cleaned during normal operation of the floor cleaner.

A preferred embodiment of the present invention is described in detail through the drawings below.

1 shows a floor cleaner with a squeegee in a side view;
2 shows a perspective view of a first embodiment of a squeegee according to the present invention,
Figure 3 shows in cross section a section near the end of the squeegee according to Figure 2;
Figure 4 shows a cross-sectional view of a section along the center of the squeegee shown in Figure 2;
5 shows a section of the squeegee according to FIG. 2 in the area of the connection element in cross section;
6 is a perspective view showing a fluid flow corresponding to an embodiment of a squeegee according to the present invention,
7 shows a section close to the end of the squeegee according to the present invention in a cross-sectional view related to the second embodiment,
FIG. 8 shows the squeegee according to FIG. 7 in a cross-sectional view in the area of a connection element.

1 shows a floor cleaner 1 including an embodiment of a squeegee according to the present invention in a side view. The floor cleaner (1) is provided with wheels (3, 5), a chassis for moving the floor cleaner over the floor surface (7) to be cleaned, the chassis being provided with a cleaning liquid to the floor surface (7) to be cleaned. a cleaning device 9 for cleaning, a filth liquid tank 11, a suction device (not shown) for sucking a liquid containing filth into the filth liquid tank 11, and a squeegee corresponding to an embodiment to be described below (13) is provided. The squeegee 13 is arranged at the rear of the cleaning device 9 with respect to the running direction F of the floor cleaner 1, and the connecting element 15 of the squeegee 13 is connected with a suction device. there is.

2 to 5, the embodiment of the squeegee 13 has a squeegee base 17 formed on the top wall 19, the front wall 21 and the rear wall 23 Since it extends from the top wall 19, a suction channel 25 is formed between the front wall 21 and the rear wall 23, and the suction channel borders the top wall 19 upwards. make up In addition, the rear wall 23 may have a contact edge 27 provided for contacting the floor surface 7 to be cleaned.

In particular, as shown in FIG. 4 , the suction connection 15 is provided on the squeegee base 17 and extends beyond the top wall 19 . This suction connection unit is connected to the suction device of the floor cleaner 1 when the cleaner operates. As can be seen from FIG. 2, the suction connection 15 is arranged in the center between the first and second ends of the squeegee 13, and the front and rear walls 21 and 23 are formed between these ends. has been extended

2 to 5, the squeegee base 17 is formed as a hollow body defining an internal space 29, and the wall section of the hollow body facing the suction channel 25 is the upper wall ( 19) is formed through Further, the inner space 29 is bounded by the cover wall 30 and the front and rear walls 21 and 23 . The suction connection part 15 may extend past the inner space 29 . In particular, as can be seen from FIG. 5 , in the squeegee base 17 , a connection element 31 is provided on the cover wall 30 , the connection element being formed for example as a hose connection, and passing through this connection element Washing liquid may flow into the inner space 29 .

The top wall 19 is provided with a plurality of washer fluid openings 33, which in this embodiment are connected to the connecting element 31 such that they likewise depart from the interior space 29; , in the embodiment described herein, the washing liquid openings 33 are arranged along the rear wall 23 at a distance from each other. Also, other arrangements of the washing liquid openings 33 are conceivable. In particular, such cleaning liquid openings 33 may be provided at the first end and the second end of the regular squeegee 13 . Accordingly, the washing liquid introduced into the inner space 29 through the connection element 31 may flow into the suction channel 25 through the washing liquid opening 33 . Thus, the connecting element 31 , the interior space 29 and the cleaning liquid opening 33 form a cleaning device for the suction channel 25 of the squeegee 13 , the above-mentioned mode of functioning will be explained in the following.

The cleaning of the squeegee 13 according to the present invention in the above-described embodiment proceeds as follows:

In the squeegee 13 with a contact edge 27 that contacts the floor surface 7, the connecting element 31 is connected to a reservoir for cleaning liquid, preferably with a cleaning liquid tank of the floor cleaner 1, As a cleaning liquid is supplied to the connection element (31). This washing liquid reaches the inner space 29 of the squeegee base 17 from the connecting element, and continues to pass through the washing liquid opening 33 and flows toward the suction channel 25 . At the same time, since the suction device of the floor cleaner 1 is activated, the cleaning liquid is discharged in the form of cleaning liquid from the suction channel 25 through the connecting element 15, while the dirt present in this suction channel 25 is also discharged. sweep away together Optionally, water obtained from the living water connection may be used as the washing liquid, and since the living water connection is connected to the connection element 31 through a hose, the living water flows into the suction channel 25 .

Finally, the washing liquid tank may be continuously connected to the connection element, and the washing liquid is supplied to the suction channel 25 through the connection element 31 at regular time intervals. Thus, the squeegee 13 can be regularly cleaned while the vacuum cleaner according to the present invention is normally operated.

In the embodiment according to the invention, the cleaning liquid covers the entire suction channel 25, as shown schematically in FIG. flows over the water, which results in a particularly good cleaning action.

Thus, the squeegee 13 according to the present invention having a cleaning device in the form of a connecting element 31 connected to the cleaning liquid opening 33 can efficiently clean the suction channel 25 of the squeegee 13 in a simple manner. there is.

In the above embodiment, the connecting element 31 is connected to the cleaning liquid opening 33 via the closed inner space 29 . In the second embodiment of the squeegee 13 according to the present invention shown in FIGS. 7 and 8 , the connecting element 31 and the cleaning liquid opening 33 are connected to each other via a cleaning liquid supply line 35 . In particular, the first end of the washing liquid supply line 35 is connected to the connecting element 31 , while the second end of this washing liquid supply line is connected to the washing liquid opening 33 . Therefore, in this second embodiment, the inner space 29 of the squeegee base 17 is not directly used for dispensing the washing liquid, which corresponds to the case of the first embodiment. Also, in this embodiment, it may be unnecessary for the squeegee base 17 to be formed as a closed hollow body. Otherwise, the second embodiment is essentially indistinguishable from the first embodiment in the way it functions, and with this second embodiment the advantages described in connection with the first embodiment can be achieved.

1 floor cleaner
3, 5 wheels
7 bottom surface
9 cleaning device
11 Filth liquid tank
13 squeegee
15 suction connection
17 squeegee base
19 top wall
23 front wall
25 back wall
27 contact edge
29 interior space
30 cover wall
31 connecting elements
33 Washing liquid opening
35 Washing liquid supply line

Claims (14)

In the squeegee for the floor cleaner (1),
A squeegee base (17) with a top wall (19), a front wall (21) and a back wall (23) extending from the top wall (19), between the front wall (21) and the back wall (23). a squeegee base (17) in which a suction channel (25) is formed, the rear wall (23) having a contact edge (27) provided for contacting the floor surface (7) to be cleaned; and
It is connected to the suction channel 25 and includes a suction connection 15 through which the squeegee can be connected to the suction device of the floor cleaner 1,
A cleaning device is provided for supplying a cleaning liquid to the suction channel 25, the cleaning device having a supply line for the cleaning liquid and a connecting element 31 for connecting the cleaning device, the connecting element 31 comprising: It is provided on the squeegee base (17) and is connected to the suction channel (25) for supplying cleaning liquid,
The squeegee base 17 is formed as a hollow body containing an inner space 29, and the inner wall section of the hollow body toward the suction channel 25 is formed through the upper wall 19, Squeegee for floor cleaners, wherein one or a plurality of cleaning liquid openings (33) are arranged in the top wall (19). According to claim 1,
The cleaning device has the cleaning liquid opening 33 connected to the connection element, through which the cleaning liquid can flow into the suction channel, and the cleaning liquid opening maintains a gap with the suction connection portion. . According to claim 2,
The squeegee base 17, the front wall 21 and the rear wall 23 extend between the first end and the second end, and the suction connection 15 is centered between the first end and the second end. wherein the cleaning liquid openings (33) are arranged at the first end and the second end. According to claim 1 or 2,
A plurality of washing liquid openings 33 are provided, and the washing liquid openings are connected to the connecting element 31, through which washing liquid openings can flow into the suction channel 25, the washing liquid openings 33 are arranged along the rear wall (23) at a distance from each other, a squeegee for a floor cleaner. According to claim 1 or 2,
Squeegee for floor cleaners, wherein the connecting element (31) is arranged on the top wall (19). delete According to claim 1,
The squeegee for a floor cleaner, wherein the connecting element (31) is provided on the squeegee base (17) so that the washing liquid can pass through the connecting element (31) and flow into the inner space (29) of the squeegee base (17). According to claim 1,
The suction connection (15) extends past the top wall (19) and the interior space (29). According to claim 2,
The cleaning device has one or a plurality of cleaning liquid openings 33, a first end of the cleaning device being connected with the connecting element 31, and a second end of the cleaning device having one or a plurality of cleaning liquid openings. A squeegee for a floor cleaner, connected to (33). As a floor cleaner (1),
a chassis for moving the floor cleaner onto the floor surface to be cleaned (7), a cleaning device (9) provided on the chassis and for supplying a cleaning liquid to the floor surface (7) to be cleaned, a dirt liquid tank (11) , having a suction device for sucking a liquid containing dirt into a soil liquid tank (11) and a squeegee (13) according to claim 1 or 2,
The squeegee 13 is arranged at the rear of the cleaning device 9 with respect to the driving direction,
The suction connection (15) is connected to the suction device. According to claim 10,
A cleaning liquid tank is provided, and the connecting element (31) is connected with the cleaning liquid tank. A method for operating a floor cleaner according to claim 10, comprising:
- supplying the cleaning liquid from the reservoir for the cleaning liquid via the connecting element 31 into the suction channel 25, and
- a method for operating a floor cleaner, comprising the step of operating the suction device to suck the cleaning fluid from the suction channel (25). According to claim 12,
wherein said reservoir is formed by a washing liquid tank, which is connected to said connecting element (31) so that washing liquid as washing liquid is supplied to said connecting element (31). According to claim 12,
The reservoir is formed by a washing liquid tank, which is connected to the connection element (31), wherein the washing liquid is supplied at regular time intervals through the connection element (31) towards the suction channel (25). How to make your vacuum cleaner work.