JP4369815B2 - Floor cleaning equipment - Google Patents

Description

  The present invention relates to a floor surface cleaning apparatus for cleaning a wide floor surface such as a lobby, corridor, or underground passage of a building or a condominium.

  When cleaning a large floor as described above, it is usually carried out by the following procedure by a professional cleaning company. First, a mild acid, neutral or alkaline detergent is applied to the floor to be cleaned using a mop. Next, the floor surface to which the detergent is applied is washed with a rotary polisher. After washing with a polisher, tap water is sprinkled on the floor using a hose connected to a tap, and wash away the sewage and detergent after washing.

  Then, after the moisture on the floor surface is sucked using a wet vacuum (vacuum suction machine), the moisture remaining on the floor surface is wiped off using a mop, and the cleaning of the floor surface is completed.

  However, when the floor surface is cleaned in this way, the equipment used for each operation is different. In other words, equipment such as a rotary polisher, a vacuum suction machine, a hose, and a mop must be used, and operations using each equipment must be sequentially performed by a plurality of workers.

  For this reason, the number of workers increases, which may lead to an increase in cost and increase the work time.

  Further, in order to remove the dirt on the floor surface, the floor surface is polished by a rotary polisher, so that the floor surface may be damaged or the floor surface may be worn out at an early stage.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a floor surface cleaning apparatus capable of efficiently and reliably performing a floor surface cleaning operation.

This invention is a floor surface cleaning apparatus for cleaning a floor surface with a cleaning liquid,
A device body capable of traveling;
A liquid storage tank provided in the apparatus main body for storing the cleaning liquid;
Pressurizing means for pressurizing the cleaning liquid stored in the liquid storage tank;
An injection means for injecting the cleaning liquid, which is provided at a tip portion of the apparatus main body and pressurized by the pressurizing means, toward the floor surface;
A suction means mounted on the apparatus body and having a discharge side communicating with the liquid storage tank;
A suction recovery unit for sucking the cleaning liquid injected into the floor surface by provided to communicate with the suction side of the suction means after lateral side of the injection means of the device body the injection means by a suction force of the suction means Equipped,
The jetting unit is provided on the front surface of the apparatus main body so that the height can be adjusted, and a lower end is provided with a sheet formed of an elastic material over the entire circumference, and is provided in the case at predetermined intervals along the width direction. A plurality of nozzle bodies, a header pipe to which the plurality of nozzle bodies are attached and provided in the case along the width direction and supplied with the cleaning liquid of the liquid storage tank pressurized by the pressurizing means; A contact plate provided on the header pipe, a cam plate provided with an outer peripheral surface in contact with the contact plate, and a cam plate provided on the front surface of the case to rotate the cam plate in the case. It consists of a rotary knob that adjusts the height of the nozzle body,
The suction recovery section has a lower surface opened, the suction means is connected to a central portion of the upper surface via a suction tube, a sheet formed of a belt-like elastic material is provided over the entire length at the lower peripheral portion, and the apparatus body The floor cleaning apparatus is characterized by comprising a suction port provided so as to be adjustable in height .

  It is preferable that the cleaning liquid discharged from the suction means to the liquid storage tank is filtered by the first filter means.

  The cleaning liquid in the liquid storage tank is preferably pressurized by the pressurizing unit after being filtered by the second filter unit.

  According to the present invention, since the cleaning liquid is pressurized and sprayed onto the floor surface, the floor surface can be cleaned by the pressure, and the cleaning liquid sprayed onto the floor surface can be recovered and used repeatedly. Therefore, it is possible to efficiently clean even a wide floor surface without increasing the size of the liquid storage tank or replenishing the cleaning liquid frequently.

  An embodiment of the present invention will be described below with reference to the drawings.

  The floor cleaning apparatus of the present invention shown in FIG. The apparatus main body 1 can be driven by casters 2 provided at the four corners of the lower surface.

  A liquid storage tank 3 is provided at the rear end of the upper surface of the apparatus main body 1. The liquid storage tank 3 has a box-shaped liquid-tight structure with an upper surface opened, and the upper surface opening is opened and closed by a lid 4. The lid 4 is provided with a suction pump 5 as suction means. The suction pump 5 is provided with a suction portion 5 a on the outer peripheral surface of the portion protruding from the upper surface of the lid plate 4, and the discharge portion 5 b is projected into the inner surface side of the lid body 4, that is, in the liquid storage tank 3.

  As shown in FIG. 3, in the liquid storage tank 3, the inner car 6 constituting the first filter means and the inner car 6 are accommodated in a position corresponding to the discharge part 5 b of the suction pump 5. An outer cage 7 is provided. As will be described later, the cleaning liquid discharged from the discharge portion 5 b of the suction pump 5 into the liquid storage tank 3 is sequentially filtered by the inner basket 6 and the outer basket 7 and stored in the liquid storage tank 3.

  The inner car 6 and the outer car 7 are both formed in a cylindrical shape whose upper surface is opened by a metal mesh, and the outer car 7 uses a metal mesh that is finer than the inner car 6. As a result, among the dust contained in the cleaning liquid such as water discharged from the suction pump 5 into the liquid storage tank 3, a large one is captured by the inner basket 6 and a small one is captured by the outer basket 7. ing.

  The lid 4 provided with the suction pump 5 can be opened and closed. Therefore, by opening the lid 4 as shown by a chain line in FIG. 3, the inner car 6 and the outer car 7 provided in the liquid storage tank 3 can be taken out and cleaned.

  As shown in FIGS. 1 to 3, a box-shaped cover body 11 is provided at the front end portion of the upper surface of the apparatus main body 1. In the cover body 11, a filter 12 constituting the second filter means is provided as shown in FIG. Although the filter 12 is not shown in detail, a filter medium formed in a cylindrical shape by, for example, a porous material is detachably accommodated in a container, and the above-described storage is upstream of the filter 12 inside the filter medium. The cleaning liquid stored in the liquid tank 3 flows in.

The downstream side of the filter 12 that is the outer peripheral surface of the filter medium is connected to the suction side of a pressurizing pump 13 as pressurizing means provided in the cover body 11. The discharge side of the pressurizing pump 13 is to be described later with a flexible high-pressure tube 14a in the injection unit 14 constituting the injection means provided on the front end surface of the apparatus body 1, that is, the front end surface of the cover body 11. It is connected.
The suction pump 5 and the pressure pump 13 are supplied with power by a power cord (not shown).

  As shown in FIGS. 5 to 7, the injection unit 14 has a case 15. The case 15 is provided on a mounting plate 16 (shown in FIG. 5) provided on the front end surface of the cover body 11 so that the height thereof can be adjusted. That is, a long hole 17 is formed along the vertical direction at both ends in the width direction of the mounting plate 16, and the case 15 is attached to the long hole 17 with a fixing screw 18. If the fixing screw 18 is loosened, the case 15 can be moved up and down along the long hole 17, and if the fixing screw 18 is tightened, the case 15 can be fixed at the lowered position or the raised position. It has become. 5 and 6, the case 15 is in the lowered position.

  Sliders 19 are slidably provided along the front-rear direction of the case 15 at both ends in the width direction of the upper surface of the case 15. When the slider 19 is slid rearward at the position where the case 15 is lowered or raised, one end of a stopper 19a (shown in FIG. 7) interlocking with the slider 19 is formed on the mounting plate 16. Engages with the stop hole 21. Therefore, the case 15 is fixed to the cover body 11 at the raised position or the lowered position by both the slider 19 and the fixing screw 18.

Note that the locking holes 21 are formed at two locations in the vertical direction of the mounting plate 16, but only the locking holes 21 at the upper position are shown in FIG. 5.
As shown in FIGS. 6 and 7, a header pipe 23 is provided in the case 15 along the width direction of the case 15. In the header pipe 23, a plurality of nozzle bodies 24, in this embodiment, three nozzle bodies 24 are provided at predetermined intervals and the injection direction is slightly rearward as shown in FIG.

  A channel material 28 shorter than the header pipe 23 is fixed to one end portion in the radial direction of the header pipe 23. Guide rods 25 are erected at both ends in the longitudinal direction of the channel material 28 by screwing the lower ends thereof. The pair of guide rods 25 is slidably supported by a support member 26 provided on the upper inner surface of the case 15 and protrudes to the outside.

  A thumbscrew 27 is screwed onto the support member 26 from the front surface of the case 15. When the thumbscrew 27 is loosened, the guide rod 25 can be moved up and down with respect to the support member 26, and when tightened, the guide rod 25 is fixed so as not to move up and down. Both end portions in the longitudinal direction of the channel material 28 are supported by a guide (not shown) provided on the inner surface of the case 15 so as to be slidable in the vertical direction.

  A contact plate 30 is provided on the front surface of the channel member 28 in the longitudinal direction, and a cam plate 29 is in contact with the lower end surface of the contact plate 30. The cam plate 29 can be rotated by a rotary knob 31 provided on the front surface of the case 15.

  When the cam plate 29 is rotated by the rotary knob 31, the header pipe 23 is moved up and down via the channel material 28. That is, by loosening the thumbscrew 27 and rotating the cam plate 29, the height of the nozzle body 24 together with the header pipe 23 can be adjusted to the height between the top dead center and the bottom dead center of the cam plate 29. it can. If the thumbscrew 27 is tightened at a predetermined height, the header pipe 23 can be fixed at that position.

  A sheet 32 made of an elastic material such as rubber is provided at the lower end of the case 15 over the entire circumference. The sheet 32 prevents the lower end of the case 15 from directly hitting the floor surface, and prevents the cleaning liquid sprayed from the nozzle body 24 from scattering outside the case 15 as described later.

If the cam plate 29 is rotated by the rotary knob 31 as shown by a chain line in FIG. 6 to raise the height of the header pipe 23, that is, the height of the three nozzle bodies 24 provided in the header pipe 23, the nozzle As described later, the strength with which the cleaning liquid sprayed from the body 24 collides with the floor surface can be gradually reduced. That is, by adjusting the height of the nozzle body 24 in accordance with the degree of dirt on the floor surface, it becomes possible to reliably clean the floor surface.
In addition, even if the height of the nozzle body 24 is changed, the spray angle of each nozzle body 24 is set so that the spray region R of the cleaning liquid sprayed from the adjacent nozzle body 24 does not leave.

  As shown in FIG. 6, the discharge side of the pressurizing pump 13 is connected to a connecting portion 23a provided at the center in the longitudinal direction of the header pipe 23 by the high-pressure tube 14a. Thereby, the cleaning liquid pressurized by the pressurizing pump 13 is supplied to the header pipe 23 and is jetted downward, that is, toward the floor surface from the three nozzle bodies 24 provided in the header pipe 23. The floor is cleaned by spraying the cleaning liquid onto the floor at a high pressure.

  In this embodiment, tap water is used as the cleaning liquid. However, depending on the soiled state of the floor surface, tap water mixed with a weakly acidic, neutral or alkaline detergent may be used.

  As shown in FIG. 2, a suction port body 35 that forms a suction recovery portion is provided on the lower surface of the apparatus main body 1 on the rear side of the injection unit 14. The lower surface of the suction port body 35 is open and the planar shape is a square shape. The suction port body 35 is connected to the central portion of the upper surface by a suction portion 5a of the suction pump 5 and a suction tube 36 (shown in FIG. 1). A connecting portion 37 (shown in FIG. 8) is provided. A sheet 35a formed of a belt-like elastic material such as rubber is provided over the entire length at the periphery of the lower end surface of the suction port body 35, and this sheet 35a hits the floor surface.

The suction port body 35 is provided in the apparatus main body 1 so as to be adjustable in height. That is, as shown in FIG. 8, both end portions of the suction port body 35 in the longitudinal direction protrude outward from both side surfaces of the cover body 11 in the width direction, and columns 38 are erected on both end portions (only one end portion is shown). Has been. One end of the link 41 is connected to the lower end of the column 38. A long hole 39 is formed at one end of the link 41, and a pin 42 attached to the support column 38 is slidably engaged with the long hole 39.

  The other end of the link 41 is pivotally attached to a bracket 43 provided on the lower surface of the apparatus main body by a support shaft 44. One end of a lever 45 is attached to the support shaft 44 integrally with the link 41. Accordingly, if the lever 45 is rotated in the direction of the arrow shown in FIG. 8, the suction port body 35 can be raised from the position indicated by the solid line to the position indicated by the chain line.

A disc-shaped buffer member 40 made of an elastic material is rotatably provided outside the end portion of the suction port body 35 where the support column 38 is erected. The cushioning member 40 is prevented from both end portions of the suction port body 35 hits directly indoor wall or an obstacle.

  The lever 45 can be held in a non-rotatable manner by a holding member (not shown) at least in the raised position of the pivot position where the suction port 35 is raised and the lowered pivot position. That is, the suction port body 35 is held immovable at least in the raised position.

  In the lowered state, the suction port body 35 is held at a height at which the lower end of the sheet 35a provided around the opened lower surface is in contact with the floor surface or spaced apart at a slight interval. When the suction force of the suction pump 5 acts on the suction port body 35, the cleaning liquid sprayed to the floor surface by the nozzle body 24 can be sucked.

  As shown in FIG. 1, a push handle 47 in which a pipe material is bent in an inverted U shape is provided at the rear end of the apparatus main body 1, that is, the rear end surface of the liquid storage tank 3. The main body 1 can be moved in the front-rear direction by the hand handle 47.

  The hand push handle 47 is provided with an operation portion 49 having an operation lever 48. The operation portion 49 has an open / close valve (not shown) that can be opened by operating the operation lever 48. When the on-off valve is opened, the header pipe 23 provided with the pressure pump 13 and the nozzle body 24 communicates with the high-pressure tube 14a. Accordingly, the cleaning liquid pressurized by the pressure pump 13 can be ejected from the nozzle body 24 of the ejection unit 14.

  Next, the case where the floor cleaning apparatus having the above-described configuration is used will be described.

  FIG. 9 is an explanatory view showing a circulation path of the cleaning liquid. When the pressurizing pump 13 is actuated, the cleaning liquid stored in the liquid storage tank 3 is purified by the filter 12 and then sucked into the pressurizing pump 13. The cleaning liquid whose pressure has increased in the pressurizing pump 13 can be ejected from each nozzle body 24 of the ejection unit 14 toward the floor surface by operating the operation lever 48 of the operation unit 49 provided in the hand handle 47. .

  Therefore, if the operator grips the hand handle 47 and simultaneously operates the operation lever 48 to push the apparatus main body 1 forward, the operator cleans the floor surface with the cleaning liquid sprayed from each nozzle body 24 of the spray unit 14. Can be washed.

  If the cleaning liquid is sprayed from the nozzle body 24 and the apparatus main body 1 travels forward while cleaning the floor surface, the cleaning liquid sprayed to the floor surface is sucked by the suction force of the suction pump 5 immediately after the floor surface is cleaned. It is sucked into the mouth body 35. That is, the cleaning liquid sprayed from the nozzle body 24 onto the floor surface is removed from the floor surface by the suction port body 35 after cleaning the floor surface.

  The cleaning liquid sucked and removed by the suction port body 35 is discharged from the discharge portion 5 b of the suction pump 5 into the inner basket 6 in the liquid storage tank 3. The cleaning liquid that has flowed into the inner car 6 passes through the inner car 6 to remove large dust, and then passes through the outer car 7 to remove relatively small dust.

  The cleaning liquid is collected in the liquid storage tank 3 by the suction pump 5 and then sucked into the pressure pump 13 through the filter 12. As the cleaning liquid passes through the filter 12, fine dust is also removed. Therefore, since the cleaning liquid that has passed through the filter 12 contains almost no dust, even if the cleaning liquid is circulated through the above-described path, the pressure pump 13 is not damaged, and the nozzle body 24 is clogged. It doesn't happen. That is, there is no problem in circulating the cleaning liquid.

  Thus, since the cleaning liquid stored in the liquid storage tank 3 can be circulated and repeatedly used, not only the amount of the cleaning liquid used can be reduced, but also, for example, a large floor surface or tap water (cleaning liquid) Even if you are cleaning the floor in a place where it cannot be replenished, you do not need to replenish tap water. As a result, the floor cleaning operation can be performed efficiently.

  In addition, since the floor surface is cleaned by spraying the cleaning liquid from the nozzle body 24 at a high pressure, the floor surface is not polished unlike a conventional polisher. Therefore, the floor surface is not damaged, and the floor surface is not worn at an early stage.

  Further, the height of the nozzle body 24 provided in the injection unit 14 can be adjusted by rotating the cam plate 29 with the rotary knob 31. If the height of the nozzle body 24 is changed, the cleaning power applied to the floor surface by the cleaning liquid sprayed from the nozzle body 24 at a high pressure can be changed. Therefore, if the height of the nozzle body 24 is changed according to the dirty state of the floor surface, the floor surface can be washed well.

  After the floor surface is cleaned in this way, when the apparatus main body 1 is carried out from the site, the injection unit 14 and the suction port body 35 are raised and held. If the apparatus main body 1 is run in this state, the lower surface of the case 15 of the injection unit 14 and the lower surface of the suction port body 35 are not rubbed against the floor surface, etc., so that the case 15 and the suction port body 35 are damaged. The apparatus main body 1 can be carried out.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the embodiment described above, power is supplied from the outside to the suction pump and the pressure pump, but power may be supplied by mounting a power source on the apparatus main body.
Moreover, although the apparatus main body is a hand-push type, the apparatus main body may be a self-propelled type.

1 is a perspective view of a floor cleaning apparatus showing an embodiment of the present invention. The top view of a floor surface cleaning apparatus. The side view of a floor surface cleaning apparatus. The rear view of a floor surface cleaning apparatus. The perspective view of the injection unit provided in the front end surface of the cover body. The figure which cut the injection unit along the width direction. The figure which cut the injection | pouring unit along the front-back direction which cross | intersects the width direction shown in FIG. The figure which shows the mechanism for moving a suction port body up and down. Explanatory drawing of the path | route which circulates cleaning liquid.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Apparatus main body, 3 ... Liquid storage tank, 5 ... Suction pump (suction means), 13 ... Pressure pump (pressurization means), 14 ... Injection unit (injection means), 24 ... Nozzle body (injection means), 35 ... Suction port body (suction collection part.

Claims (3)

A floor surface cleaning device for cleaning a floor surface with a cleaning liquid,
A device body capable of traveling;
A liquid storage tank provided in the apparatus main body for storing the cleaning liquid;
Pressurizing means for pressurizing the cleaning liquid stored in the liquid storage tank;
An injection means for injecting the cleaning liquid, which is provided at a tip portion of the apparatus main body and pressurized by the pressurizing means, toward the floor surface;
A suction means mounted on the apparatus body and having a discharge side communicating with the liquid storage tank;
A suction recovery unit for sucking the cleaning liquid injected into the floor surface by provided to communicate with the suction side of the suction means after lateral side of the injection means of the device body the injection means by a suction force of the suction means Equipped,
The jetting unit is provided on the front surface of the apparatus main body so that the height can be adjusted, and a lower end is provided with a sheet formed of an elastic material over the entire circumference, and is provided in the case at predetermined intervals along the width direction. A plurality of nozzle bodies, a header pipe to which the plurality of nozzle bodies are attached and provided in the case along the width direction and supplied with the cleaning liquid of the liquid storage tank pressurized by the pressurizing means; A contact plate provided on the header pipe, a cam plate provided with an outer peripheral surface in contact with the contact plate, and a cam plate provided on the front surface of the case to rotate the cam plate in the case. It consists of a rotary knob that adjusts the height of the nozzle body,
The suction recovery section has a lower surface opened, the suction means is connected to a central portion of the upper surface via a suction tube, a sheet formed of a belt-like elastic material is provided over the entire length at the lower peripheral portion, and the apparatus body A floor cleaning apparatus characterized by comprising a suction port provided so as to be adjustable in height .   2. The floor cleaning apparatus according to claim 1, wherein the cleaning liquid discharged from the suction means to the liquid storage tank is filtered by the first filter means. The floor cleaning apparatus according to claim 1 or 2 , wherein the cleaning liquid in the liquid storage tank is pressurized by the pressurizing means after being filtered by the second filter means.

Images