Cleaning vehicle

Abstract

Cleaning vehicle with connections for a sprayed cleaning fluid and for vacuumed-up dirty water and with a shield (1) arranged orthogonally to the direction of travel on the cleaning vehicle, characterized in that: - a surface cleaner (2) consists of a beam (6) which is pivotally mounted horizontally on the shield (1); - a tower (7) is arranged on the beam (6) at the height of the pivot axis, which has a retaining cable (8) running obliquely forward to the end of the beam, which holds the beam (6) in a horizontal position relative to the ground; - a longitudinally adjustable rod (13) is arranged at the tower-end projecting end of the beam (6), which can be connected to brackets (14) arranged at intervals on the shield (1) to achieve specific angular positions between the beam (6) and the shield (1); - below the beam (6), arranged one behind the other in the longitudinal direction of the beam (6),a maximum of two downward-facing hoods (9) are arranged to be pivotable and height-adjustable, - that the lower edges (10) of the hoods (9) are designed as sealing strips, - that each hood (9) is supported on the ground by means of wheels (11), and - that each hood (9) has at least one connection for a supply line (4) and at least one connection (15) for a wastewater return line (5).

Description

The invention relates to a cleaning vehicle with connections for a cleaning fluid to be sprayed on and for vacuumed-up dirty water and with a sign that is arranged orthogonally to the direction of travel on the cleaning vehicle. From DE 93 07 097 U1, a machine for removing oil or grease stains from road surfaces and the like is known, wherein at least one reservoir each for the sprayed water and for the vacuumed-up dirty water is arranged on a chassis. Spray nozzles for the sprayed water are provided in a brush head at the front of the chassis, which is equipped with two counter-rotating cup brushes mounted on a brush head carrier on the chassis. The rear of the chassis has a suction bar for collecting the dirty water. A disadvantage of this design is that the cleaning process takes a relatively long time and is only possible in one direction of travel. A cleaning vehicle has already been proposed (DE 102007004933.3-25) with separate containers for sprayed hot water and for vacuumed-up dirty water, and with a shield positioned orthogonally to the direction of travel. The surface cleaner in this vehicle has at least three downward-facing hoods, which are pivotable and height-adjustable. A disadvantage of this design is that the arrangement of at least three hoods makes it impossible to clean narrow paths or small, inaccessible areas. The object of the invention is to develop a cleaning vehicle with a container each for sprayed hot water and for vacuumed-up dirty water and with a shield that is arranged orthogonally to the direction of travel on the cleaning vehicle, with which it is possible to treat even the smallest or narrowest areas of soiled surfaces quickly and with varying intensity and in any direction of travel. According to the invention, the problem is solved by the features of the main claim. Embodiments of the invention are described in the dependent claims. The advantage of the invention is that, due to the adjustable angle of the beam on the shield, the hoods can clean the surface in different widths, thus enabling different cleaning intensities of the surface, that cleaning can take place in any direction of travel, including when reversing, and that the cleaning vehicle can also be small. The invention is explained in more detail below using an exemplary embodiment. In the accompanying drawing, Fig. 1 shows a top view of a surface cleaner, Fig. 2 a side view of the surface cleaner, and Fig. 3 another top view of a surface cleaner. Fig. 4 shows a bottom view of a cover of the surface cleaner. Not shown is a commonly known cleaning vehicle with a container for hot water to be sprayed onto, for example, an oil-contaminated surface and with a container for vacuumed-up dirty water. A sign 1 is mounted at the front of the cleaning vehicle in the direction of travel. A surface cleaner 2 is attached to this sign 1. The sign 1 has coupling points 3 for a supply line 4 for a cleaning fluid, for example hot water, and connections 15 for a wastewater return line 5. The supply line 4 is designed as a pressure line and the wastewater return line 5 as a suction line. The surface cleaner 2 consists of a beam 6, which is pivotally mounted horizontally on the shield 1. As shown in Fig. 2, a tower 7 is mounted on the beam 6 at the height of the beam's pivot axis. A retaining cable 8 is attached to the tower 7 and is fastened to the long end of the beam 6, holding the beam 6 in a horizontal position relative to the floor being cleaned. A longitudinally adjustable rod 13 is also arranged at the long end of the beam 6, supporting the surface cleaner 2 in brackets 14 attached to the shield 1. The angle between the beam 6 and the shield 1 is adjustable. For this purpose, the longitudinally adjustable rod 13 is provided with the brackets 14 arranged at intervals on the shield 1. At the bottom of the beam 6, one or two downward-facing hoods 9 are arranged longitudinally along the beam 6. The edges 10 of these hoods, as shown in Fig. 2, are designed as sealing strips, for example, bristle strips. The hoods 9 are preferably made of stainless steel. The hoods 9 are pivotally and height-adjustably mounted on the beam 6. This allows the hoods 9 to follow the unevenness of the surface to be cleaned and thus ensure thorough cleaning of the surface. Each hood 9, as shown in Fig. 2, has three wheels 11, each offset by 120 degrees on the hood 9. These wheels support the respective hood 9 on the ground. The hoods 9 are individually supplied with hot water and the dirty water is extracted via the supply line 4 and wastewater discharge line 5, which can be connected to the shield 1. The supply line 4 terminates in the hood 9 in the form of a T- or cross-shaped piece, with the hot water flow exiting the two open ends of the T- or cross-shaped piece, split and passing through two rotor nozzles 12, as shown in Fig. 4. As the hot water flow exits the two open ends of the T- or cross-shaped piece, the two opposing rotor nozzles 12 rotate about the central axis of the hoods 9. Figures 3 and 4 show a hood 9 of the surface cleaner. The hood 9 has three wheels 11, each offset by 120 degrees on the hood 9. These support the hood 9 on the floor. Hot water is supplied to the hood 9 via the supply line 4 and the dirty water discharge line 5, and the dirty water is extracted. The supply line 4 terminates in the hood 9 in the form of a T-piece or cross-piece, whereby, for example, the hot water flow is divided and exits at the two open ends of the T-piece or at the four open ends of the cross-piece, each via a rotor nozzle 12. The opposing rotor nozzles 12 rotate around the central axis of the hoods 9 as the hot water flow exits the two open ends of the T-piece or cross-piece. Reference symbol list 1 Shield 2 Surface cleaner 3 Coupling points 4 Supply line 5 Wastewater return line 6 Beam 7 Tower 8 Support rope 9 Hood 10 Edges 11 Wheels 12 Rotor nozzles 13 Pole 14 Bracket 15 Connection for a wastewater return line

Claims

Cleaning vehicle with connections for a sprayed cleaning fluid and for vacuumed-up dirty water and with a shield (1) arranged orthogonally to the direction of travel on the cleaning vehicle, characterized in that: - a surface cleaner (2) consists of a beam (6) which is pivotally mounted horizontally on the shield (1); - a tower (7) is arranged on the beam (6) at the height of the pivot axis, which has a retaining cable (8) running obliquely forward to the end of the beam, which holds the beam (6) in a horizontal position relative to the ground; - a longitudinally adjustable rod (13) is arranged at the tower-end projecting end of the beam (6), which can be connected to brackets (14) arranged at intervals on the shield (1) to achieve specific angular positions between the beam (6) and the shield (1); - below the beam (6), arranged one behind the other in the longitudinal direction of the beam (6),a maximum of two downward-facing hoods (9) are arranged to be pivotable and height-adjustable, - that the lower edges (10) of the hoods (9) are designed as sealing strips, - that each hood (9) is supported on the ground by means of wheels (11), and - that each hood (9) has at least one connection for a supply line (4) and at least one connection (15) for a wastewater return line (5). Cleaning vehicle according to claim 1, characterized in that the supply line (4) in the hood (9) ends in a T- or cross-piece and is rotatably mounted. Cleaning vehicle according to claim 2, characterized in that at least one rotor nozzle (12) is arranged at each of the two open ends of the T-piece or at the four open ends of the cross-piece of the supply line (4), so that with the exit of the cleaning fluid from the rotor nozzles (12) the T-piece or cross-piece with the rotor nozzles (12) rotates about the central axis of the hood (9). Cleaning vehicle according to one of claims 1 to 3, characterized in that each hood (9) is supported on the ground by means of three wheels (11) offset by 120 degrees each. Cleaning vehicle according to one of claims 1 to 4, characterized in that the beam (6) is arranged to be hydraulically movable horizontally up to 500 mm. Cleaning vehicle according to one of claims 1 to 5, characterized in that the beam (6) is arranged on the left or right in the direction of travel. Cleaning vehicle according to one of claims 1 to 6, characterized in that a flow heater is arranged on the cleaning vehicle for the preparation of hot water. Cleaning vehicle according to one of claims 1 to 7, characterized in that a wastewater tank with a vacuum pump is arranged on the cleaning vehicle for wastewater disposal. Cleaning vehicle according to one of claims 1 to 8, characterized in that the sealing strips are bristle strips.

Images