JP2014148844A - Washing device for bridge - Google Patents

Abstract

The present invention provides a bridge cleaning device that is lightweight, excellent in operability, versatile, capable of performing cleaning operations at low cost, and capable of reliably recovering cleaning waste liquid.
A cleaning cup 2 in which a flexible nozzle 12 formed of an elastic material in a tube shape is attached, a cleaning liquid supply unit 3 for supplying a cleaning liquid to the flexible nozzle 12 inside the cleaning cup 2 from the outside, The cleaning device 1 for the bridge is constituted by the cleaning waste liquid recovery hose 4 for recovering the cleaning waste liquid discharged from the inside to the outside of the cleaning cup 2 through the through-hole formed in the cleaning cup 2, and the flexible nozzle 12 is connected to the tip The tip side swings irregularly by the reaction force generated when the cleaning liquid is ejected from the nozzle and the vector change thereof.
[Selection] Figure 1

Description

  The present invention relates to a bridge cleaning apparatus, and more particularly to a bridge cleaning apparatus that is lightweight, excellent in operability, and capable of recovering cleaning waste liquid.

  When managing a bridge using a steel bridge girder, it is important to prevent the occurrence of rust. For this purpose, it is effective to wash the steel bridge girder. Especially for bridges built near the sea, rusting is promoted by salt derived from seawater. Therefore, cleaning work is regularly performed in a short span to frequently remove salt adhering to the bridge girder. I need to do it. Also, if seawater comes into direct contact with a steel bridge girder due to a tsunami, it is necessary to carry out the cleaning work as quickly as possible.

  Cleaning work for bridge girder is a high place work, so it is often difficult from the technical, workability and cost viewpoints compared to cleaning work that can be performed on the ground. . Therefore, various types of bridge cleaning devices have been developed so far that can effectively clean the bridge girder of the bridge (Japanese Patent Laid-Open Nos. 11-1000081, 11-107215, 2003-3422). etc).

JP-A-11-1000081 JP-A-11-107215 JP 2003-3422 A JP 2004-105940 A

  The above conventional cleaning devices for bridges are all installed and used for the bridge to be cleaned (devices dedicated to the target bridge), so they are not versatile and have a structure. This is a large scale and increases the construction cost. For this reason, a large tsunami resulting from the Great East Japan Earthquake has caused many bridges built in a specific area to be covered with seawater at the same time, and it is necessary to quickly carry out cleaning work on all of those bridges. In some cases, it is difficult to apply the above-described stationary cleaning apparatus.

  Therefore, development of a simple apparatus that is more versatile, has good workability, and can perform a cleaning operation at low cost is desired. In addition, there is an environmental problem if the cleaning waste liquid that inevitably arises from the cleaning work is dropped below the bridge, so there is an environmental problem, so that cleaning waste liquid can be reliably recovered even with a simple configuration. Development of equipment is desired.

  The present invention is intended to solve the above-described problems in the prior art, and is lightweight, excellent in operability, versatile, capable of performing a cleaning operation at low cost, and ensuring cleaning waste liquid. It is an object of the present invention to provide a bridge cleaning device that can be recovered.

  The bridge cleaning apparatus according to the present invention includes a cleaning cup in which a flexible nozzle formed of a tubular elastic material is attached, and a cleaning liquid supply unit that supplies the cleaning liquid from the outside to the flexible nozzle inside the cleaning cup. And a cleaning waste liquid recovery hose for recovering cleaning waste liquid discharged from the inside to the outside of the cleaning cup through a through hole formed in the cleaning cup, and the cleaning cup is formed in a box shape having an opening. The flexible nozzle is attached to the inside of the cleaning cup so as to protrude toward the opening, and the tip side oscillates irregularly due to the reaction force generated when the cleaning liquid is ejected from the tip and its vector change. It is characterized by being configured.

  In addition, it is preferable that a sponge and / or a brush is attached to the opening edge of the cleaning cup on the entire circumference, and the cleaning liquid supply unit includes a spray gun and a cleaning liquid supply hose. It is preferable that the cleaning liquid supplied from the cleaning liquid supply hose can be supplied to the flexible nozzle at a pressure or a flow rate adjusted according to the operation amount of the trigger.

  When this bridge cleaning device is configured as a cleaning device mainly for the upward surfaces (upward horizontal surface and upward inclined surface) of the bridge girder of the bridge, the tip is inside the cleaning cup and is opened. A suction pipe that opens at a position near the edge, is connected to the cleaning waste liquid recovery hose and has a suction pipe that discharges cleaning waste liquid that accumulates in the cleaning cup when the cleaning liquid is jetted out of the cleaning cup. preferable.

  The bridge cleaning apparatus according to the present invention has a very simple configuration, and thus can be light, versatile, and excellent in operability. Further, the tip is swung by spraying the cleaning liquid. By adopting the flexible nozzle, the entire surface to be cleaned can be effectively cleaned without unevenness, and the cleaning waste liquid generated during the cleaning operation can be reliably recovered.

FIG. 1 is a side view of a bridge cleaning device 1 (for vertical surface and downward surface cleaning) according to a first embodiment of the present invention. FIG. 2 is a front view of the cleaning cup 2 constituting the cleaning device 1 shown in FIG. FIG. 3 is a cross-sectional view of the cleaning cup 2 constituting the cleaning device 1 shown in FIG. FIG. 4 is a side view of the bridge cleaning apparatus 1 (for upward surface cleaning) according to the second embodiment of the present invention. FIG. 5 is a bottom view of the cleaning cup 2 constituting the cleaning device 1 shown in FIG.

  Hereinafter, modes (first embodiment and second embodiment) for carrying out the present invention will be described. First, as a first embodiment of the present invention, a cleaning apparatus 1 mainly for a vertical surface and a downward surface (downward horizontal surface and downward inclined surface) in a bridge girder will be described. As shown in FIG. 1, the cleaning device 1 includes a cleaning cup 2, a cleaning liquid supply unit 3, and a cleaning waste liquid recovery hose 4.

  1 to 3, the basic shape of the cleaning cup 2 is formed in a box shape having a space inside, and an opening 5 is formed on the front side (left side in FIGS. 1 and 3). . In other words, it is shaped like a box-shaped container with its top open.

  A brush 6 and a sponge 7 are attached to the opening 5 of the cleaning cup 2. More specifically, the brush 6 extends over the entire circumference of the opening edge 5a so as to protrude from the tip of the opening 5 (opening edge 5a shown in FIG. 3) to the front (left side in FIGS. 1 and 3). Is attached, and the sponge 7 is attached to the entire outer periphery of the opening edge 5a.

  As shown in FIG. 3, two through holes (small hole 9a and large hole 9b) are formed in the side 8 on the rear side of the cleaning cup 2 (the side opposite to the opening 5). . The small hole 9a is formed in the vicinity of the center portion of the side portion 8 on the rear side, and the large hole 9b is formed in the lowermost center portion of the side portion 8 on the rear side. The nozzle socket 11 is inserted through the small hole 9a, and the cleaning liquid discharger 13 (cylindrical member) is inserted through the large hole 9b.

  As shown in FIG. 3, on the inner side of the cleaning cup 2, the flexible nozzle 12 is inserted through the joint 10 so as to protrude forward (in the direction of the opening 5) from the nozzle socket 11 inserted through the small hole 9 a. Is attached. On the other hand, on the outside of the cleaning cup 2, as shown in FIG. 1, the cleaning liquid supply unit 3 is connected to a nozzle socket 11 that protrudes further rearward (right side in FIG. 1) from the rear side 8; Connected to the cleaning liquid discharge section 13 is a cleaning waste liquid recovery hose 4 that recovers the cleaning waste liquid discharged from the inside to the outside of the cleaning cup 2 (sprayed cleaning liquid and dirt components and salt removed from the surface to be cleaned). Has been.

  As shown in FIG. 1, the cleaning liquid supply unit 3 connected to the nozzle socket 11 includes a spray gun 16 and a cleaning liquid supply hose 17. The spray gun 16 has a gripping part 14 and a trigger 15. When an operator grips the gripping part 14 and operates the trigger 15 (pulling to the gripping part 14 side), the spray gun 16 is connected to the lower end of the gripping part 14. The cleaning liquid (tap water, tap water and detergent, or other liquid) supplied from the cleaning liquid supply hose 17 is applied to the nozzle socket 11 and the flexible nozzle 12 connected to the tip at a predetermined pressure or flow rate (or It can be supplied at a pressure or flow rate adjusted according to the operation amount of the trigger 15.

  The flexible nozzle 12 is formed by forming an elastic material (for example, natural rubber, synthetic rubber, vinyl chloride resin, silicon, etc.) into a tube shape, and is supplied from a cleaning liquid (nozzle socket 11 side) sprayed from the tip. ) By controlling the pressure or flow velocity of the cleaning liquid, and the reaction force generated when the cleaning liquid is jetted and the vector change thereof causes the tip side to be disturbed (randomly swings vertically and horizontally). .

  Here, the usage method of the bridge cleaning apparatus 1 according to the first embodiment shown in FIGS. 1 to 3 will be described. The cleaning apparatus 1 mainly includes a vertical plane and a downward plane among the constituent surfaces of the bridge girder of the bridge. The opening 5 faces the surface to be cleaned, and the brush 6 and the sponge 7 attached to the opening 5 are pressed against the surface to be cleaned all around. In this state, the trigger 15 of the spray gun 16 is operated to supply the cleaning liquid supplied from the cleaning liquid supply hose 17 to the nozzle socket 11 and the flexible nozzle 12 connected to the tip at a high pressure, and the cleaning waste liquid is recovered. A suction means (such as a suction pump with a recovery tank) (not shown) connected to the hose 4 is operated.

  Then, the cleaning liquid is ejected from the flexible nozzle 12 toward the surface to be cleaned that faces the opening 5, and cleaning is performed. At this time, the flexible nozzle 12 formed of an elastic material is exposed to the tip side due to the reaction force generated when the cleaning liquid is jetted and the vector change thereof, and as a result, the entire surface to be cleaned facing the opening 5 is exposed. The cleaning liquid is sprayed evenly, and the dirt and salt adhering to the target surface can be effectively removed.

  Since the cleaning liquid is sprayed in the cleaning cup 2, the cleaning waste liquid is collected at the bottom of the cleaning cup 2 without scattering to the surroundings, and is formed at the lowermost center of the side portion 8 on the rear side of the cleaning cup 2. Is discharged out of the cleaning cup 2 through the large hole 9b and the cleaning liquid discharge section 13, and is sucked from the cleaning waste liquid recovery hose 4 connected to the cleaning liquid discharge section 13 to a suction means (not shown). To be recovered.

  In addition, since the brush 6 and the sponge 7 are attached to the opening 5, the cleaning cup 2 is attached to the surface to be cleaned even when dirt, salt, or the like is firmly attached to the surface to be cleaned. The surface of the object to be cleaned is rubbed against the surface to be cleaned by appropriately moving it in the up / down / left / right direction in a state where it is pressed on, so that those stains and salt can be suitably removed.

  Next, as a second embodiment of the present invention, a cleaning device 1 mainly for an upward surface (an upward horizontal surface and an upward inclined surface) of a bridge girder of a bridge will be described. As shown in FIG. 4, the cleaning device 1 includes a cleaning cup 2, a cleaning liquid supply unit 3, and a cleaning waste liquid recovery hose 4. Although this point is the same as that of the cleaning apparatus 1 according to the first embodiment shown in FIGS. 1 to 3, the suction pipe 18 is arranged in the direction of the cleaning cup 2 and inside the cleaning cup 2. This is different from the cleaning device 1 according to the first embodiment.

  More specifically, as shown in FIGS. 4 and 5, the cleaning cup 2 has a basic shape formed in a box shape having a space inside, and an opening 5 formed on the lower side. Further, two through holes are formed in the upper surface portion 19 of the cleaning cup 2, the nozzle socket 11 is inserted into one through hole, and the cleaning liquid discharge unit 13 (cylindrical shape) is inserted into the other through hole. Member) is inserted. Further, on the inner side of the cleaning cup 2, the flexible nozzle 12 is attached via the joint 10 so as to protrude downward (in the direction of the opening 5) from the nozzle socket 11 inserted through the through hole. On the other hand, on the outside of the cleaning cup 2, as shown in FIG. 4, the cleaning liquid supply unit 3 is connected to the nozzle socket 11 protruding upward from the upper surface part 19, and the cleaning liquid discharge unit 13 has a cleaning waste liquid recovery unit. A hose 4 is connected.

  The brush 6 and the sponge 7 are attached to the opening 5 of the cleaning cup 2, and the cleaning liquid supply unit 3 is constituted by a spray gun 16 having a gripping part 14 and a trigger 15 and a cleaning liquid supply hose 17. In addition, the configurations and functions of the brush 6, the sponge 7, the spray gun 16, and the flexible nozzle 12 are the same as those of the cleaning device 1 according to the first embodiment.

  In the cleaning apparatus 1 according to the present embodiment, a plurality of suction pipes 18 are arranged inside the cleaning cup 2 as described above. These suction pipes 18 are for discharging the cleaning waste liquid accumulated in the cleaning cup 2 to the outside of the cleaning cup 2 when the cleaning liquid is jetted in the cleaning cup 2, as shown in FIGS. 4 and 5. In addition, the tip ends are respectively opened in the vicinity of the opening edge 5a of the cleaning cup 2 and at a predetermined interval in the circumferential direction (so as to spread over the entire circumference of the opening edge 5a). In addition, the base end portion is configured to gather at the end portion (or inside) of the cleaning liquid discharge portion 13 and be connected to the cleaning waste liquid recovery hose 4.

  The position in the vicinity of the opening edge 5a mentioned here means a position where the cleaning waste liquid accumulated in the cleaning cup 2 can be quickly sucked without leaking from the gap with the surface to be cleaned. Specifically, a position within 2 cm upward (upper surface 19 side) from the opening edge 5a, that is, the level of the cleaning waste liquid accumulated in the cleaning cup 2 (depth from the water surface to the opening edge 5a) is 2 cm. It means a position where suction can be performed so as not to exceed. This is because if the water level in the cleaning cup 2 exceeds 2 cm, the amount of cleaning waste liquid leaking from the gap between the surface to be cleaned and the sponge 7 pressed against the surface may exceed the limit.

  Here, the usage method of the bridge cleaning apparatus 1 according to the second embodiment shown in FIGS. 4 and 5 will be described. The cleaning apparatus 1 mainly includes an upward surface (upward horizontal plane and (Upwardly inclined surface) (for example, the upper surface of the lower flange in a bridge girder constructed using I-shaped steel), with the opening 5 facing down on the surface to be cleaned The cleaning device 1 is placed, and the brush 6 and the sponge 7 attached to the opening 5 are pressed against the surface to be cleaned over the entire circumference. In this state, the trigger 15 of the spray gun 16 is operated to supply the cleaning liquid supplied from the cleaning liquid supply hose 17 to the nozzle socket 11 and the flexible nozzle 12 connected to the tip at a high pressure, and the cleaning waste liquid is recovered. A suction means (not shown) connected to the hose 4 is activated.

  Then, the cleaning liquid is ejected from the flexible nozzle 12 toward the surface to be cleaned that faces the opening 5, and cleaning is performed. At this time, the flexible nozzle 12 formed of an elastic material is exposed to the tip side due to the reaction force generated when the cleaning liquid is jetted and the vector change thereof, and as a result, the entire surface to be cleaned facing the opening 5 is exposed. The cleaning liquid is sprayed evenly, and the dirt and salt adhering to the target surface can be effectively removed.

  In addition, since the cleaning liquid is sprayed in the cleaning cup 2, the cleaning waste liquid is accumulated in the cleaning cup 2 (on the surface to be cleaned) without being scattered to the surroundings, and the tip portion is near the opening edge 5a. The suction pipe 18 that opens is sucked and discharged to the outside of the cleaning cup 2 through the cleaning liquid discharge portion 13. Then, it is sucked from the cleaning waste liquid recovery hose 4 connected to the cleaning liquid discharger 13 to a suction means (not shown) and recovered.

  As described above, since the cleaning device of the present invention has a very simple configuration, it can be made lightweight and excellent in operability, and the tip of the cleaning device can be swung by spraying the cleaning liquid. By adopting the nozzle, the entire surface to be cleaned can be effectively cleaned without unevenness, and the cleaning waste liquid generated during the cleaning operation can be reliably recovered.

1: Cleaning device,
2: Washing cup,
3: Cleaning liquid supply unit,
4: Cleaning waste liquid recovery hose,
5: opening,
5a: Open edge,
6: Brush,
7: Sponge,
8: rear side,
9a: small hole,
9b: large hole,
10: Fitting,
11: Nozzle socket,
12: Flexible nozzle,
13: Cleaning liquid discharge part,
14: gripping part,
15: Trigger,
16: Spray gun
17: cleaning liquid supply hose,
18: suction pipe,
19: Top surface

Claims (4)

A cleaning cup in which a flexible nozzle formed of an elastic material in a tube shape is attached to the inside, a cleaning liquid supply unit for supplying a cleaning liquid to the flexible nozzle inside the cleaning cup from the outside, and a through hole formed in the cleaning cup A cleaning device for a bridge constituted by a cleaning waste liquid recovery hose for recovering cleaning waste liquid discharged from the inside to the outside of the cleaning cup via,
The washing cup is formed in a box shape having an opening,
The flexible nozzle is attached inside the cleaning cup so as to protrude toward the opening, and the tip side oscillates irregularly due to the reaction force generated when the cleaning liquid is ejected from the tip and its vector change. The bridge cleaning apparatus is characterized by being configured as described above.   The tip end is open inside the cleaning cup and near the opening edge, the base end is connected to the cleaning waste liquid recovery hose, and cleaning waste liquid collected in the cleaning cup is cleaned by spraying the cleaning liquid. The bridge cleaning apparatus according to claim 1, further comprising a suction pipe that discharges the outside of the cup.   The bridge cleaning apparatus according to claim 1 or 2, wherein a sponge and / or a brush are attached to the opening edge of the cleaning cup all around. The cleaning liquid supply unit is composed of a spray gun and a cleaning liquid supply hose,
The spray gun has a gripping part and a trigger, and is configured so that the cleaning liquid supplied from the cleaning liquid supply hose can be supplied to the flexible nozzle at a pressure or flow rate adjusted according to the operation amount of the trigger. The bridge cleaning apparatus according to any one of claims 1 to 3, wherein

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