JP2008154909A - Washing water tank device for floor surface washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact and comparatively large-capacity washing water tank device for a floor surface washing machine in which the mulfunction of a float device due to the bubbling of detergent is hardly caused even when a difference in height from the float device in a tank to a usable liquid level in the tank is made small as much as possible. <P>SOLUTION: The washing tank 10 to be used by attachment to the floor surface washing machine 1 internally comprises: the float device 20 for adjusting the amount of storage of washing water WT stored in the tank; and a cyclone device 30 capable of rotating dirt water after washing in a centrifugal direction and also in a direction in parallel with the liquid surface of the washing water WT stored in the tank. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning water tank apparatus for storing cleaning water used in a floor cleaning machine and sewage after cleaning. Specifically, the cleaning water mixed with a detergent can be discharged. On the other hand, the present invention relates to a circulating cleaning water tank apparatus configured to collect and reuse sewage after washing.

  In recent years, there has been a demand for an easy and small floor cleaning machine used in small stores such as convenience stores. Specifically, the floor can be easily cleaned and washed at night when the customer is free, and the floor is easy so that preparation of cleaning water and detergent and processing of collected sewage are not time consuming. A face washer is needed.

  However, in the circulation type wash water tank in which the wash water mixed with the detergent is prepared in advance in the supply tank, and the dirty water being cleaned is returned to the supply tank while supplying the wash water, the detergent is not washed during washing. There was a risk that bubbles would rise and the water level would rise, causing bubbles and water to be sucked into the blower motor, resulting in failure of the blower motor.

Therefore, as seen in Patent Document 1, the present applicant is configured to reliably operate the float and prevent suction of bubbles and water to the blower motor even when bubbles such as detergent overflow. Developed a water absorber float device.
JP 2001-95731 A

  However, in the “floating device for water absorber” described in Patent Document 1, when the water level reaches a certain level before the water level of the washing water becomes full, the sucked sewage splashes and the suction airflow are changed to the water absorption chamber. Since the liquid is intensively guided into the tank along the airflow inflow direction of the water, the level of the washing water in the tank is disturbed by the airflow and large bubbles are generated. As a result, the amount of washing water stored in the tank in advance is limited.

  In other words, if there is no allowance from the surface of the cleaning water to the operating position of the float, the float safety device is activated immediately even with some bubbles, which is extremely complicated in use. In addition, if the washing water capacity is reduced for this purpose, there is a problem that the washing sewage collected and used while being circulated becomes immediately contaminated, and the washing water itself is frequently replaced, which makes it complicated. It was.

  Therefore, the technical problem of the present invention is that the float device is less likely to malfunction due to foaming of detergent even if the difference in liquid level in the tank that can be used from the float device in the tank is minimized. It is to provide a cleaning water tank apparatus for a floor cleaning machine having a relatively large capacity.

(1) In order to solve the above technical problem, a cleaning water tank apparatus for a floor cleaning machine according to claim 1 of the present invention supplies cleaning water to the floor using a pump from the cleaning water tank. In the floor surface washer configured to circulate and use the cleaning water by sucking the sewage after cleaning from the floor surface by sucking the blower and sending it back to the cleaning water tank, the cleaning water tank The cleaned sewage that is fed into the inside of the tank from the water suction port provided on the side of the tank by the suction action of the blower is centrifugal and parallel to the level of the cleaning water contained in the tank. A cyclone device capable of turning in a direction is provided.

(2) Moreover, the flush water tank apparatus for floor surface washing machines according to claim 2 of the present invention communicates with the blower when the flush water level exceeds the upper limit level line inside the flush water tank. A float device for closing the float pipe is provided, and this upper limit level line and the line of the lower end edge of the sewage discharge opening formed in the peripheral surface of the cyclone device are configured at the same or substantially the same level. Yes.

(3) Moreover, the flush water tank apparatus for floor surface washing machines according to claim 3 of the present invention is characterized in that a plurality of sewage discharge openings formed in the peripheral surface of the cyclone apparatus are provided. Yes.

(4) Moreover, the washing water tank apparatus for floor surface washing machines which concerns on Claim 4 of this invention forms the flat cross-sectional shape of the said washing water tank in a rectangular shape, The said cyclone provided in this washing water tank The position of the sewage discharge opening formed in the peripheral surface of the device is the direction in which the sewage after washing discharged from this discharge outlet is perpendicular to the inner wall surface of the washing water tank or at the four corners of the washing water tank. It is provided at a position where it is discharged toward the part.

(5) Furthermore, the washing water tank apparatus for a floor cleaning machine according to claim 5 of the present invention can divide the entire washing water tank configured to be removable with respect to the floor cleaning machine vertically. In addition, the upper lid tank body and the water storage tank body are integrated by tank fasteners. The cyclone device and the float device are mounted side by side inside the upper lid tank body, and the washing water tank is cleaned on the floor surface. At the time of use operation attached to the machine, the cyclone device and the float device are used by being attached to the floor cleaning machine so that they are in a horizontal state, and the upper lid tank body is formed on a part of the upper surface side of the water storage tank body. When the tank is removed, a tank opening is provided, and the lowest height level of the tank opening during the use operation is less than or equal to the float upper limit operation height of the float device. In addition, the bottom of the water storage tank body is removed from the floor washer while being configured at the same or substantially the same level as the line at the lower edge of the sewage discharge port provided in the cyclone device. The entire water tank is provided with a back inclined surface that can be placed on the floor surface with the opening facing upward, and the opening and the back inclined surface are formed in parallel vertically. Yes.

(6) In addition, the floor cleaning machine cleaning water tank apparatus according to claim 6 of the present invention is located above the line of the upper end edge of the sewage discharge port provided in the cyclone apparatus. It is characterized by providing an intake port that leads to the wash water tank.

  According to the means described in the above (1), the suction air flowing into the tank and the sewage splash after washing flow in the centrifugal direction due to the cyclone action by the cyclone device, so that the momentum increases. Most of the water that flows into the tank from the sewage discharge port on the outer periphery of the tank will flow directly into the liquid level in the tank. The phenomenon can be extremely reduced.

  According to the means described in (2) above, the upper limit level line of the float device provided in the wash water tank and the lower end edge line of the wash sewage discharge port of the cyclone device are configured to be the same or substantially the same. Therefore, it is possible to increase the washing water capacity in the washing water tank as much as possible.

  According to the means described in the above (3), since the momentum of the cleaning sewage splashed into the cleaning water tank together with the suction air is dispersed by the plurality of discharge ports, it is possible to further reduce the generation of bubbles. To.

  According to the means described in (4) above, the suction air flowing into the cleaning water tank and the splash of cleaning sewage reach the inner surface of the tank before reaching the cleaning water level in the cleaning water tank. Since the momentum is further attenuated by colliding with the four corners, the generation of bubbles can be further reduced.

  According to the means described in the above (5), when storing the wash water in the wash water tank, water cannot be stored above the lowest level of the opening of the water tank body, and the height is the float operation height. Therefore, it is the height of the lower end of the discharge port in the cyclone device, so that the opening parallel to the bottom of the tank is fully filled without having to look at the gauge indicating the amount of water stored in the wash water tank. In the same way, even when the water storage tank body is stably placed at the time of water supply and water is supplied, it is possible to operate in a state where it is filled to the opening parallel to the back inclined surface. There is no need to worry about the posture of the tank at the time of water supply, and there is no possibility that the user will put too much water and the float device will malfunction immediately.

  In addition, according to the means described in the above (6), since there is an intake port on the float device side at a position higher than the discharge port of the cyclone device, suction air flowing into the tank from the sewage discharge port of the cyclone device and The splashes of cleaning sewage flowing in together do not flow directly into the float apparatus, and the possibility of a malfunction that causes the splashes of cleaning sewage to be sucked into the blower side and causing a blower motor failure can be suppressed to a very low level.

  As described above, according to the cleaning water tank apparatus for a floor cleaning machine according to the present invention, even if the difference in the liquid level in the tank that can be used from the float apparatus in the tank is reduced as much as possible, It is possible to provide a small, relatively large-capacity washing water tank device that is unlikely to malfunction due to foaming, etc., and it is easy to use a tank that contains washing water mixed with detergent. Because it can be washed, it can be used to create a floor washing machine that is small and requires little drainage or replacement of washing water. It is suitable for use in small stores such as convenience stores. It is useful to use for tank equipment.

  Hereinafter, an embodiment of a cleaning water tank apparatus for a floor cleaning machine according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an example of a floor cleaning machine 1 in which the present invention is implemented. In the figure, 1A and 1B are upper surface covers that cover the upper surface of the airframe 1Z, 1R is a traveling wheel, 2 is a blower attached to the inside of the upper surface cover 1A, 2M is a blower motor, and is indicated by reference numeral 10 as a whole. The cleaning water tank according to the present invention is configured to be detachable with respect to the rear part of the machine body 1Z by the fasteners 14 and 14 (mounting fasteners), and the entire cleaning water tank 10 is shown in FIGS. As shown in FIG. 4, the water storage tank body 11 and the upper lid tank body 12 can be divided into upper and lower parts and are integrated in a sealed state by a tank fastener 13. The entire cleaning water tank 10 configured as described above is made of a transparent or translucent material so that the inside can be visually confirmed.

  Next, reference numeral 9 denotes a driving handle portion for holding an operation portion attached to the rear portion of the floor cleaning machine 1, and in the floor cleaning machine 1 shown in FIG. 1, the handle portion 9 is freely movable in the front-rear direction. As shown in the figure, the handle portion 9 is set up vertically to reduce the storage area when not in use and reduces the storage area when not in use. It is devised to reduce the storage area by removing 10 and standing vertically in that state.

  Further, in FIG. 1, 5 is a cleaning brush that is rotated by a motor 5M and cleans the floor surface inside the upper surface cover body 1B, and 6 covers the upper surface side of the cleaning brush 5 to prevent scattering of dirty water (cleaning water). The cover portion 4 is connected to the front and rear suction passages 4A and 4B which are opened downward by branching the suction action of the blower 2 extending into the cleaning water tank 10 to the front and rear of the cleaning brush 5. 6P, a suction hose for sucking the cleaned sewage generated by the rotation of the cleaning brush 5 and scraped by the front and rear squeegees 7A, 7B into the cleaning water tank 10; This is a water supply pump for supplying the cleaning water WT stored in the cleaning water tank 10 to the cleaning brush 5 through the flexible water absorption hose 8A and the watering pipe 8.

  In FIG. 1, the bold arrow indicates the inflow (suction) direction of the inflowing air containing the sewage after washing, and the two-dot chain line thick arrow indicates the outflow direction of the air from which the sewage is separated. Then, the thick arrow of the chain line indicates the water supply direction of the cleaning water WT.

  FIG. 2 is a perspective view showing the appearance of a washing water tank apparatus for a floor cleaning machine according to the present invention, FIG. 3 is a configuration diagram seen through the internal structure, and FIG. 4 is Y in FIG. FIG. 5 (a) is a front sectional view of the cleaning water tank 10 along the line XX of FIG. 4, and FIG. 5 (b) is a side view thereof. In these drawings, reference numeral 11 denotes a water storage tank body for storing the washing water WT, and 12 denotes an upper lid tank body, and as shown in FIG. 2 and FIG. 12 is assembled, and the tank bodies 11 and 12 are integrated in an airtight state by the tank fastener 13 to constitute the above-described washing water tank 10, and the washing assembled in this way The water tank 10 is attached to the rear part of the fuselage 1Z by the fasteners 14,14. Be mounted detachably is as previously described.

  Next, in FIGS. 3 to 5, reference numerals 20 and 30 denote a float device and a cyclone device which are attached to the inside of the upper lid tank body 12 by using mounting screws and spacers 23 and 33 side by side. As for the external appearance, the entire surface is formed in a substantially cylindrical shape with an entrance hole 20W for the wash water WT opened on the bottom surface, and an intake port 20T with a mesh filter formed on the upper outer surface, and inside the wash water WT. Are provided with a spherical float 21 that moves up and down and a float pipe 22 that is formed in an inverted L shape that communicates with the blower 2.

  In the normal operation, the float device 20 configured as described above draws the suction force of the blower 2 from the tank exhaust port 22A opened to the front side surface 12Z of the upper lid tank body 12 through the suction duct 3 shown in FIG. The inside of the wash pipe 10 and the float device 20 and further the inside of the wash water tank 10 through the intake port 20T, the water level of the wash water WT reaches the upper limit height L shown in FIG. Then, when the float 21 closes the lower end port 22R of the float pipe 22, the ventilation of the tank exhaust port 22A is blocked, and the suction force of the blower 2 extending into the cleaning water tank 10 is blocked. It has become.

  Further, in the drawing, 32... Is formed on the outer peripheral surface 31 of the cyclone device 30 formed in parallel with the liquid surface of the accommodated cleaning water WT. It is a sewage discharge port that is perforated and formed into a vertically long square with a gap in the direction. Reference numeral 30A denotes a water inlet that also serves as an air inlet of the cyclone device 30 formed in the front side surface 12Z of the upper lid tank body 12, and the interior 10K of the washing water tank 10 through the float device 20 (FIG. 4, FIG. 5 (see (a))), the suction action of the blower 2 extends from the sewage discharge port 32 through the inside of the cyclone device 30 to the suction hose 4 connected to the water suction port 30A. The washed sewage generated by the rotation of the water can be collected in the washing water tank 10 through the cyclone device 30.

  Further, the sewage after washing sucked into the cyclone device 30 by receiving the suction action of the blower 2 as described above turns along the outer peripheral surface 31 of the cyclone device 30 as shown in FIG. The splashed air flowing from the water suction port 30A and the splashed sewage are more vigorous in the centrifugal direction by the cyclone action, and the liquid level of the wash water WT stored in the wash water tank 10 Therefore, most of the sewage discharged from the sewage discharge port 32 provided in the outer peripheral surface 31 into the tank is directly into the liquid level in the tank. Since it flows in, the bubbling phenomenon of the liquid level can be extremely reduced.

  Further, a plurality of the sewage discharge ports 32 are provided at intervals in the circumferential direction of the outer peripheral surface 31, and the formation positions of these sewage discharge ports 32 are discharged from the sewage discharge ports 32 as shown in FIG. The sewage after cleaning that is scattered) is discharged toward the four corner portions 12X and 12X of the cleaning water tank 10 having a rectangular plane cross-sectional shape, or with respect to the inner wall surface of the cleaning water tank 10 By providing it at a position where it is discharged in the right-angle direction, it is possible to attenuate the sewage after washing discharged from each of the sewage discharge ports 32, thereby further reducing the generation of bubbles.

  In addition, although two sewage discharge ports 32 are formed in the drawing, this is an example of implementation, and one or a plurality of three or more may be selected, and the selection is arbitrary. In FIG. 4, the discharge direction from the sewage discharge port 32 is the four corner portions 12X, 12X. However, when a collision plate is provided in the washing water tank 10 or a shape or material having a buffer property is used for the collision portion. However, the same buffering effect can be exhibited.

  2 and 5 (b), 41 is a flexible washing water take-out hose piped in the wash water tank 10, and the wash water WT stored at the root end of the wash water take-out hose 41 is stored. A filter 40 is attached in a buried state submerged in the bottom of the tube, and its tip protrudes from the front side plate 12Z to constitute a washing water outlet 41A to which the suction hose 8A shown in FIG. 1 can be connected. .

  Note that the buried position of the filter 40 as shown in FIG. 5 and FIG. 6 is a position where the filter 40 is buried below the liquid level even in the normal posture and the laid position as shown in FIG. However, if the filter 40 is frequently turned into air, the filter 40 can be used as much water as possible to avoid problems such as the air coming out from the washing water outlet 41A and the supply of the washing water WT not being continuous. It is installed in such a position that it can be buried inside.

  As described above, the entire washing water tank 10 to which the float device 20 and the cyclone device 30 are attached uses the handle 15 provided on the upper surface of the floor washing machine 1 by freely removing it from the machine base 1Z by removing the stopper 14. The upper lid tank body 12 can be freely removed from the water tank body 11 by removing the tank fastener 13, and the water tank body 11 has an upper lid tank on the upper surface. A tank opening 11K that is opened when the body 12 is removed is provided.

  Further, at the lower side of the water storage tank body 11, the entire cleaning water tank 10 is removed from the floor cleaning machine 1, with the tank opening 11K facing upward as shown in FIG. A back inclined surface 11T that can be placed on the floor surface FL in a state is provided in parallel with the tank opening 11K in the vertical direction.

  Accordingly, in the state shown in FIG. 6, the washing water tank 10 is placed on the floor surface FL for temporary storage, or placed in a sink with a water tap and the upper lid tank body 12 is removed to remove tap water. And detergent can be replenished. Further, in the state shown in FIG. 6, after the washing water is fully filled along the tank opening 11K, the washing water tank 10 is attached to the floor cleaning machine 1 in the posture shown in FIG. Also, the tank shape is formed so that the level of the cleaning water WT is the same.

  However, if the floor surface FL to be cleaned has irregularities, or there is a slope during movement, or if the floor surface cleaning machine 1 is handled fairly roughly, then the liquid level may be disturbed beforehand (tank or cleaning). It is expected that the attitude of the machine body will be large), and the cleaning water WT is prepared according to the first water level gauge G1 and the second water level gauge G2 as shown in FIG. By preparing the cleaning water WT according to the third and fourth gauges G3 and G4 according to the water levels of the gauges G1 and G2, it is possible to devise so that the water level can be determined according to the use condition. is there. In addition, since the method of foam generation and the state of foam differ depending on the type and concentration of the detergent used, it is possible to inject water using a gauge accordingly. In addition, it can be operated even if the amount of water injected into the tank is small.

  Note that the interval indicated by the symbol a shown in FIG. 5A is the lower end edge (line) of the intake port 20T provided in the float device 20 and the upper end of the sewage discharge port 32 provided in the cyclone device 30. The distance from the edge (line) is shown, and the intake port 20T of the float device 20 is arranged at a position higher than the discharge port 32 of the cyclone device 30 in this way, so that it can flow into the tank vigorously. The splash of cleaning sewage flowing along with the air and fine bubbles are difficult to enter the float device 20, further improving the safety of the blower 2.

  Further, as shown in FIG. 5B, the tank horizontal surface (opening 11K) is located at a position lower than the above-described upper limit height L of the liquid level (the closed height line of the float 21) by the height indicated by the symbol b. ). Accordingly, in the state where the upper lid tank body 12 is opened, the tank horizontal surface of the tank (water storage side) is the lowest height of the opening 11K, and therefore, the cleaning water WT cannot be accumulated more than this height. Therefore, as a result of storing water without confirming the water level, it is possible to avoid a problem that the water level exceeds the upper limit height L and does not operate.

The external view which showed an example of the floor surface washing machine carrying the washing water tank apparatus which concerns on this invention. The perspective view which showed the external appearance of the washing water tank used by this invention. The block diagram explaining the internal structure of the washing water tank used by this invention. FIG. 5A is a cross-sectional plan view taken along line YY of the cleaning water tank used in the present invention. FIG. 4 is a front sectional view of the cleaning water tank used in the present invention, taken along line X-X in FIG. The side view of the washing water tank which showed the state which removed and put on the floor surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor surface washing machine 2 Blower 4 Suction hose 5 Washing brush 7 Squeegee 8 Sprinkling pipe 8P Water supply pump 9 Handle part 10 Washing water tank 11 Water storage tank body 11K Opening part 11T Back inclined surface 12 Upper lid tank body 12X Four corner corners of water storage tank body Part 13 Tank fastener 20 Float device 20T Air inlet 21 Float 22 Float pipe 22A Tank exhaust port 30 Cyclone device 31 Outer peripheral surface 32 Sewage discharge port WT Washing water FL Floor surface

Claims (6)

The cleaning water is supplied to the floor using a pump from the cleaning water tank, and the cleaning water is sucked from the floor by the suction action of the blower and sent back to the cleaning water tank. In floor cleaning machines configured to be used in circulation,
The sewage after washing that is fed into the inside of the washing water tank from the water suction port provided on the side of the tank by the suction action of the blower, in the centrifugal direction and the level of the washing water stored in the tank A cleaning water tank device for a floor cleaning machine, characterized in that a cyclone device capable of turning in a direction parallel to the floor is provided.   Provided inside the washing water tank is a float device that closes the float pipe leading to the blower when the liquid level of the washing water exceeds the upper limit level line, and this upper level line and an opening are formed in the peripheral surface of the cyclone device The washing water tank apparatus for a floor cleaning machine according to claim 1, wherein a line at a lower edge of the sewage discharge port is configured at the same or substantially the same level.   The cleaning water tank apparatus for a floor cleaning machine according to claim 1 or 2, wherein a plurality of sewage discharge openings formed in the peripheral surface of the cyclone apparatus are provided.   The washing water tank is formed in a rectangular cross-sectional shape, and the position of the sewage discharge opening formed in the peripheral surface of the cyclone device provided in the washing water tank is discharged from the discharge opening. The sewage after washing is provided at a position perpendicular to the inner wall surface of the washing water tank or at a position where it is discharged toward the four corners of the washing water tank. The washing water tank apparatus for floor surface washing machines of description.   The entire washing water tank configured to be removable with respect to the floor cleaning machine is constituted by an upper lid tank body and a water storage tank body that can be divided into upper and lower parts and integrated by a tank fastener, and an upper lid tank body The cyclone device and the float device are installed side by side in the interior of the machine, and the washing water tank is attached to the floor surface washing machine during use operation, so that the cyclone device and the float device are in a horizontal state. A tank opening that opens when the upper lid tank body is removed is provided on a part of the upper surface side of the water storage tank body, and is attached to the washing machine. Of the lower end edge of the sewage discharge port provided in the cyclone device. Is constructed at the same or substantially the same level, while the bottom of the water storage tank body is placed on the floor surface with the entire cleaning water tank removed from the floor cleaning machine facing upward. The floor cleaning machine according to claim 1, 2, 3, or 4, wherein a back inclined surface that can be provided is provided, and the opening and the back inclined surface are formed in parallel vertically. Water tank equipment.   The intake port leading to the washing water tank of the float device is provided at a position higher than the line of the upper edge of the sewage discharge port provided in the cyclone device. 4. A cleaning water tank apparatus for a floor cleaning machine according to 4 or 5.

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