Cleaning device

Abstract

To improve detergency of a cleaning device.SOLUTION: The invention relates to a cleaning device 100 of temporary equipment having injection nozzles 31 for injecting a cleaning fluid. Each of a plurality of injection nozzles 31 may move relative to the temporary equipment in a front-back direction and the plurality of injection nozzles are disposed in a lateral direction.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cleaning device for temporary construction materials and equipment. [Background technology]

[0002] Temporary equipment and materials used at construction sites and the like become dirty with use and therefore need to be washed periodically. Patent Document 1 discloses a washing device having a cart washing means for washing a cart. The cart washing means disclosed in Patent Document 1 has a spray nozzle installed on the top of an immersion tank. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-193453 A Summary of the Invention [Problem to be solved by the invention]

[0004] Dirt that adheres to temporary equipment and materials used at construction sites includes dust as well as mud, mortar, etc. Once the mud, mortar, and other adhesions dry and harden, they become difficult to remove. The present invention has been made in consideration of the above-mentioned problems, and has an object to improve the cleaning power of a cleaning device. [Means for solving the problem]

[0005] The present invention is a cleaning device for temporary equipment having a spray nozzle that sprays cleaning liquid, characterized in that the spray nozzle moves in a first direction relative to the temporary equipment and is arranged in multiple directions in a second direction intersecting the first direction. Effect of the Invention

[0006] According to the present invention, the cleaning power of the cleaning device can be improved. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view showing the configuration of a cleaning device and an object to be cleaned according to a first embodiment. [Diagram 2] 3A to 3C are diagrams illustrating a configuration of an ejection section according to the first embodiment. [Diagram 3] 3A to 3C are diagrams illustrating a configuration of an ejection section according to the first embodiment. [Figure 4] FIG. 11 is a perspective view showing the configuration of a cleaning device and an object to be cleaned according to a second embodiment. [Diagram 5] 13A and 13B are diagrams illustrating a configuration of an ejection unit according to a second embodiment. [Figure 6] 13A and 13B are diagrams illustrating a configuration of an ejection unit according to a second embodiment. [Figure 7] 13A to 13C are diagrams illustrating a configuration of an ejection section according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The cleaning device according to the present embodiment will be described with reference to the drawings. <First embodiment> Fig. 1 is a perspective view showing the configuration of the cleaning device 100 and the construction floor 1. For convenience, in each figure including Fig. 1, the direction in which a jetting unit 30 of the cleaning device 100, which will be described later, moves after starting cleaning is indicated as the front side by arrow Fr, the rear side by arrow Rr, the right side by arrow R, and the left side by arrow L.

[0009] The cleaning device 100 includes a base unit 10 , a transport unit 20 , and a spray unit 30 . The base unit 10 has a function of supporting the entire cleaning apparatus 100. The base unit 10 has a front grounding portion 11a, a rear grounding portion 11b, and a transport support portion 14.

[0010] The front grounding portion 11a and the rear grounding portion 11b are portions that support the transport support portion 14. The front grounding portion 11a and the rear grounding portion 11b are grounded on the floor surface while being spaced apart from each other in the front and rear. There is a gap between the front grounding portion 11a and the rear grounding portion 11b that allows an object to be cleaned to be placed thereon. The front grounding portion 11a and the rear grounding portion 11b each have a frame portion 12 formed by multiple frames (four in this case) and legs 13 whose height can be adjusted.

[0011] The transport support part 14 is a part that supports the transport part 20. The transport support part 14 is arranged so as to bridge in an arch shape between the front ground part 11a and the rear ground part 11b. The transport support part 14 is spaced above the floor surface so as to form a space below for placing the object to be cleaned. The transport support part 14 has a frame part 15 composed of multiple frames (four in this case) and a reinforcing part 16 that bridges diagonally between the front ground part 11a or the rear ground part 11b. The transport support part 14 has limiter switches (not shown) on the front and rear sides for detecting the position of the spray part 30.

[0012] The conveying unit 20 has a function of moving the spraying unit 30 relative to the object to be cleaned. Specifically, the conveying unit 20 moves the spraying unit 30 linearly in the front-rear direction. The conveying unit 20 is supported by the conveying support unit 14. The conveying unit 20 has an actuator 21, a guide unit 22, a guided unit 23, and an interlocking unit 24. The actuator 21 is a part that generates a driving force for moving the spray unit 30. The actuator 21 is supported on the rear side of the transport support unit 14 within the frame unit 15. The actuator 21 in this embodiment is a motor, but may be something other than a motor as long as it can move the spray unit 30 relative to the object to be cleaned.

[0013] The guide portion 22 is a portion that guides the guided portion 23 so that the ejection portion 30 moves in the front-rear direction. The guide portion 22 is a shaft-shaped member that is long along the front-rear direction. In this embodiment, a male screw is formed on the outer circumferential surface of the guide portion 22 from the front side to the rear side. The front end of the guide portion 22 is supported within the frame portion 15, and the rear end is connected to the actuator 21. The actuator 21 is driven to rotate the guide portion 22 around the axis. The actuator 21 can rotate the guide portion 22 in one direction (counterclockwise in this case) and in the other direction (clockwise in this case).

[0014] The guided portion 23 is a portion that is guided by the guide portion 22. The guided portion 23 is a member that holds the guide portion 22 so as to cover it from the periphery. In the present embodiment, the guided portion 23 has an internal thread formed on its inner circumferential surface that screws into the external thread of the guide portion 22. Therefore, when the actuator 21 is driven and the guide portion 22 rotates in one direction, the guided portion 23 moves to one side (here, the front side) in the front-rear direction, and when the guide portion 22 rotates in the other direction, the guided portion 23 moves to the other side (here, the rear side) in the front-rear direction.

[0015] The interlocking portion 24 is a portion that connects the guided portion 23 and the ejection portion 30. The interlocking portion 24 connects the guided portion 23 and the ejection portion 30, so that the ejection portion 30 moves in the front-rear direction in conjunction with the guided portion 23. The interlocking portion 24 is located on one side (here, the right side) in the left-right direction of the transport support portion 14. The interlocking portion 24 is a member that is long in the up-down direction, and extends from the frame portion 15 of the transport support portion 14 to a space formed below the transport support portion 14. The interlocking portion 24 moves while maintaining a posture along the up-down direction by being guided by the upper frame and the lower frame of the frame portion 15 of the transport support portion 14.

[0016] The spray unit 30 has a function of spraying the cleaning liquid onto the object to be cleaned. The spray unit 30 of this embodiment has a plurality of (here, a total of 10) spray nozzles 31 arranged in a row at intervals from each other along the left-right direction. If the multiple jet nozzles 31 arranged in a row along the left-right direction are considered as an jet nozzle group, the jet unit 30 of this embodiment has multiple rows (three rows here) of jet nozzle groups 50a-50c arranged at intervals in the front-rear direction. Here, the first row is the jet nozzle group 50a, the second row is the jet nozzle group 50b, and the third row is the jet nozzle group 50c. The jet nozzle groups 50a-50c in each row have the same configuration.

[0017] The configuration of the ejection unit 30 will be specifically described below. Fig. 2 is a diagram showing the configuration of the ejection unit 30 as viewed from the front. In Fig. 2, the second row of ejection nozzles 50b and the third row of ejection nozzles 50c are hidden by the first row of ejection nozzles 50a and are not shown. Fig. 3 is a diagram showing the configuration of the ejection unit 30 as viewed from the right side. In Fig. 3, the ejection nozzles 31 arranged other than at the right end are hidden by the ejection nozzles 31 arranged at the right end and are not shown.

[0018] The ejection section 30 has an ejection nozzle 31, a front-rear arrangement section 32, left-right arrangement sections 34a to 34c, and a nozzle arrangement section . The front-rear arrangement section 32 is a section for arranging the injection nozzle groups 50a to 50c of each row at intervals in the front-rear direction. The front-rear arrangement section 32 is a member that is long along the front-rear direction. The front-rear arrangement section 32 is fixed to the interlocking section 24. Specifically, the front-rear arrangement section 32 is fixed to the interlocking section 24 via fixing means 33 such as bolts so as to sandwich the front-rear arrangement section 32 against the interlocking section 24 from the left and right directions.

[0019] The front-rear arrangement part 32 can be moved in the vertical direction along the interlocking part 24 in a state where it is released from the fixing means 33, and by fixing it again via the fixing means 33 after moving it, the position of the entire jet nozzle group 50a-50c can be adjusted in the vertical direction at once. For example, if the object to be cleaned is tall in the vertical direction, the entire jet nozzle group 50a-50c can be adjusted upward to avoid interference between the jet nozzle 31 and the object to be cleaned. On the other hand, if the object to be cleaned is short in the vertical direction, the entire jet nozzle group 50a-50c can be adjusted downward to bring the jet nozzle 31 and the object closer to each other, so that high-pressure cleaning liquid whose pressure has not been reduced can be sprayed onto the object to be cleaned. Here, the interlocking part 24, the front-rear arrangement part 32, and the fixing means 33 correspond to an example of an adjustment means that can adjust the multiple jet nozzles 31 in the vertical direction at once.

[0020] The left and right arranging portions 34a to 34c are portions for arranging the multiple injection nozzles 31 of each of the injection nozzle groups 50a to 50c along the left and right direction. The left and right arranging portions 34a to 34c are each a member that is long along the left and right direction. In this embodiment, the left and right arranging portions 34a to 34c are substantially circular when viewed from the left and right direction. The left and right arranging portions 34a to 34c are fixed to the front-rear arranging portion 32. Specifically, the left and right arranging portions 34a to 34c are fixed via fixing means 35 such as bolts so that their left ends are sandwiched by the front-rear arranging portion 32 from above and below (see FIG. 5(b) described later).

[0021] Since the left and right arrangement parts 34a to 34c are substantially circular, when the fixing by the fixing means 35 is released, the left and right arrangement parts 34a to 34c can be rotated around the axis of the left and right arrangement parts 34a to 34c. Therefore, by rotating the left and right arrangement parts 34a to 34c around the axis and then fixing them again via the fixing means 35, the spray direction (spray angle) of the multiple spray nozzles 31 of each of the spray nozzle groups 50a to 50c can be adjusted at once for each of the spray nozzle groups 50a to 50c. For example, in the case of an object to be washed that tends to have a lot of dust attached thereto, the spray angle (acute angle between the spray direction and the horizontal plane) can be adjusted to be close to 90°, so that the dust can be scattered by the cleaning liquid and washed. On the other hand, in the case of an object to be washed that tends to have a lot of mortar or the like attached thereto, the spray angle (acute angle between the spray direction and the horizontal plane) can be adjusted to be close to 45°, so that the cleaning liquid can be sprayed at the boundary between the object to be washed and the mortar and the cleaning can be peeled off from the object to be washed. Here, the front-rear arrangement portion 32, the left-right arrangement portions 34a to 34c and the fixing means 35 correspond to an example of an adjustment means capable of adjusting the jetting directions of the multiple jet nozzles 31 in the front-rear direction all at once.

[0022] The nozzle arrangement section 36 is a portion for arranging each of the jet nozzles 31 at a position determined by the operator of the cleaning device 100. Specifically, the nozzle arrangement section 36 connects the left and right arrangement sections 34a to 34c to each of the jet nozzles 31. The nozzle arrangement section 36 is provided corresponding to each of the jet nozzles 31. Since the jet section 30 of this embodiment has a total of 30 jet nozzles 31, it also has a total of 30 nozzle arrangement sections 36. The nozzle arrangement section 36 has a shape like a combination of multiple rectangular parallelepipeds. The width dimension in the left and right direction of the nozzle arrangement section 36 is larger than the width dimension in the left and right direction of the jet nozzle 31 and is smaller than twice the width dimension in the left and right direction of the jet nozzle 31. The nozzle arrangement section 36 has a first fixing section 37 and a second fixing section 39 (see FIG. 3). The first fixing section 37 and the second fixing section 39 are integrally formed.

[0023] The first fixing portion 37 is a portion fixed to the left and right arrangement portions 34a to 34c. The first fixing portion 37 is fixed via fixing means 38 such as a bolt so as to sandwich the left and right arrangement portions 34a to 34c from the front-rear direction. Since the left and right arrangement parts 34a to 34c are substantially circular, when the first fixing part 37 is released from the fixing means 38, the nozzle arrangement part 36 can be rotated around the axis of the left and right arrangement parts 34a to 34c. Therefore, by rotating the nozzle arrangement part 36 around the axis of the left and right arrangement parts 34a to 34c and then fixing it again via the fixing means 38, the spray direction (spray angle) of the jet nozzle 31 can be adjusted individually (independently). For example, in the case of an object to be washed that contains a mixture of dust, mortar, etc., the jet nozzle 31 can be adjusted to different spray angles, so that the jet nozzle 31 that mainly washes dust and the jet nozzle 31 that mainly washes mortar are mixed together for washing. The nozzle arrangement part 36, the left and right arrangement parts 34a to 34c, and the fixing means 38 correspond to an example of an adjustment means that can individually adjust the spray direction of the jet nozzle 31 in the front-rear direction.

[0024] In addition, in a state where the first fixing portion 37 is released from the fixing means 38, the nozzle arrangement portion 36 can be moved along the left and right arrangement portions 34a to 34c. Therefore, by moving the nozzle arrangement portion 36 along the left and right arrangement portions 34a to 34c and then fixing it again via the fixing means 38, the interval between adjacent jet nozzles 31 in the left and right direction can be adjusted. For example, when the object to be cleaned is large in the left and right direction, the interval between the jet nozzles 31 can be increased to evenly spray the cleaning liquid even on the large-sized object to be cleaned. In addition, when the object to be cleaned has a deposit that is difficult to remove, the interval between the jet nozzles 31 can be decreased so that the spray ranges of adjacent jet nozzles 31 overlap in the left and right direction. Therefore, since the cleaning liquid can be sprayed from the multiple jet nozzles 31 to the deposit, the deposit can be easily cleaned. Here, the nozzle arrangement portion 36, the left and right arrangement portions 34a to 34c, and the fixing means 38 correspond to an example of an adjustment means that can adjust the interval between adjacent jet nozzles 31 in the left and right direction.

[0025] The second fixing part 39 is a part that fixes the injection nozzle 31. The second fixing part 39 fixes the injection nozzle 31 so that the injection direction (injection angle) of the injection nozzle 31 is inclined with respect to both the vertical and horizontal directions. The second fixing part 39 clamps the main body of the injection nozzle 31 from the left and right directions and fixes it via fixing means 40 such as bolts (see FIG. 5(b)). Since the main body of the jet nozzle 31 has the same shape along the axial direction, when the second fixing part 39 is released from the fixing means 40, the jet nozzle 31 can be moved along the axial direction (jetting direction) of the main body. Therefore, by moving the jet nozzle 31 along the axial direction of the main body and then fixing it again via the fixing means 40, the jet nozzle 31 can be individually adjusted along the jetting direction (a direction inclined with respect to both the vertical and horizontal directions). For example, when the object to be cleaned has unevenness in the left-right direction or has an inclination toward one side in the left-right direction, the position of each jet nozzle 31 can be adjusted according to the shape of the object to be cleaned, so that the jet nozzle 31 and the object to be cleaned can be brought closer to each other, and high-pressure cleaning liquid with unreduced pressure can be sprayed onto the object to be cleaned. Here, the nozzle arrangement part 36, the main body of the jet nozzle 31, and the fixing means 40 correspond to an example of an adjustment means that can individually adjust the jet nozzle 31 in the vertical and horizontal directions.

[0026] The second fixing part 39 has a substantially circular shaft part 41 that protrudes integrally toward the front, and the first fixing part 37 clamps the shaft part 41 from the left and right directions and fixes it via fixing means 42 such as a bolt. Since the shaft part 41 is substantially circular, when the second fixing part 39 is released from the fixing means 42, the second fixing part 39 can be rotated about the axis of the shaft part 41. Therefore, by rotating the second fixing part 39 about the axis and then fixing it again via the fixing means 42, the spray direction of the spray nozzle 31 can be individually adjusted in the left and right directions.

[0027] The jet nozzle 31 sprays the cleaning liquid compressed at high pressure in the form of a mist onto the object to be cleaned. The cleaning liquid sprayed from the jet nozzle 31 may be water or a liquid obtained by mixing a cleaning agent into water. A high-pressure hose 45 that serves as a flow path for the cleaning liquid is connected to each jet nozzle 31. The high-pressure hose 45 is also connected to a liquid compressor. Therefore, the cleaning liquid compressed by the liquid compressor is sprayed from the jet nozzle 31 through the high-pressure hose 45. The jet nozzle 31 of this embodiment is fixed by the second fixing part 39 of the nozzle arrangement part 36 so that the spray direction (spray angle) of the jet nozzle 31 is inclined with respect to both the vertical direction and the horizontal direction. Therefore, the jet nozzle 31 sprays the cleaning liquid from an oblique upward direction toward the object to be cleaned.

[0028] 2, when viewed from the front side, the spray nozzle 31 sprays the cleaning liquid so that it spreads in the left-right direction from the spray nozzle opening. Here, if the angle at which the cleaning liquid spreads from the spray nozzle opening of the spray nozzle 31 when viewed from the front side is angle α, the angle α is, for example, 20° or more and 90° or less. In this way, the spray nozzle 31 spreads in the left-right direction from the spray nozzle opening, so that the spray ranges of adjacent spray nozzles 31 in the left-right direction can be made to overlap when viewed from the front side.

[0029] On the other hand, as shown in Fig. 3, when viewed from the left-right direction, the spray nozzle 31 sprays the cleaning liquid in a substantially straight line from the nozzle along the spray direction. Here, if the angle at which the cleaning liquid spreads from the nozzle of the spray nozzle 31 when viewed from the left-right direction is angle β, the angle β is, for example, not less than 0° and not more than 19°, and the relationship is angle α>angle β. In this way, by spraying the cleaning liquid in a substantially straight line from the nozzle of the spray nozzle 31, it is possible to prevent the spray ranges of adjacent spray nozzles 31 in the front-rear direction from overlapping when viewed from the left-right direction.

[0030] A case where an object is cleaned using the cleaning apparatus 100 configured as above will be described. Here, the temporary equipment and materials to be cleaned are the erection floor 1 shown in FIG. 1. The erection floor 1 has a floor section 2 and four legs 3. The floor section 2 is substantially rectangular in plan view. The upper surface of the floor section 2 is a horizontal surface, and a convex strip 4 is formed on both opposing sides of the upper surface as an anti-slip surface. A plurality of convex strips 4 are formed on the entire surface of the floor section 2 at intervals from each other. A worker at a construction site installs the erection floor 1 so that the legs 3 straddle various unevennesses provided on the floor surface of the construction site. Therefore, when a worker passes through or works at the construction site, he or she can pass through or work through the flat floor section 2 without passing through the unevennesses. When such an erection floor 1 is used at a construction site, dust and other deposits such as mud, mortar, etc. adhere to the upper surface of the floor section 2 of the erection floor 1.

[0031] In order to clean the erected floor 1 using the cleaning device 100, the operator of the cleaning device 100 places the erected floor 1 between the front grounding part 11a and the rear grounding part 11b of the base part 10. At this time, it is preferable to place the erected floor 1 so that the direction of the convex strip 4 of the floor part 2 is in the front-rear direction. In addition, in the initial position before starting cleaning, the cleaning device 100 has the spray part 30 located on the rear side.

[0032] The operator adjusts the position of the entire jet nozzle groups 50a to 50c in the vertical direction in advance according to the vertical height of the construction floor 1. The operator also adjusts the jet direction of the jet nozzles 31 for each of the jet nozzle groups 50a to 50c in advance according to the type of material attached to the construction floor 1. The operator also adjusts the jet direction of each jet nozzle 31, the vertical and horizontal directions of each jet nozzle 31, and the interval between adjacent jet nozzles 31 as necessary.

[0033] The operator issues a command to start cleaning to the cleaning device 100. In response to the command to start cleaning, the cleaning device 100 sprays cleaning liquid from all the spray nozzles 31 of the spray nozzle groups 50a to 50c. The cleaning device 100 also moves the spray nozzle groups 50a to 50c from their initial positions toward the front by rotating the actuator 21 in one direction.

[0034] Therefore, the jet nozzle groups 50a to 50c move forward while jetting the cleaning liquid from each jet nozzle 31 onto the upper surface of the construction floor 1 from an obliquely upward direction. At this time, in each of the jet nozzle groups 50a to 50c, the multiple jet nozzles 31 are arranged in the left-right direction, which is a direction intersecting the movement direction, so that the cleaning liquid can be jetted evenly onto the upper surface of the construction floor 1. In addition, by cleaning the same place on the upper surface of the construction floor 1 in the order of the first row of the jet nozzle group 50a, the second row of the jet nozzle group 50b, and the third row of the jet nozzle group 50c, even if the attachment is difficult to remove, it can be removed by peeling it off or crushing it with the high-pressure cleaning liquid.

[0035] When the cleaning device 100 detects that any part of the transport unit 20 or the spray unit 30 has come into contact with the front limiter switch provided on the transport support unit 14, it stops the movement of the spray nozzle groups 50a-50c and stops spraying the cleaning liquid from the spray nozzles 31, thereby completing the cleaning of the erected floor 1. If the left-right length of the erected floor 1 is greater than the left-right length of the spray nozzle groups 50a-50c and the erected floor 1 cannot be completely cleaned in one cleaning, the erected floor 1 can be rearranged so that the uncleaned floor portion 2 is included in the cleaning range of the spray nozzle groups 50a-50c, and then the entire erected floor 1 can be cleaned by cleaning in the same manner.

[0036] Furthermore, the cleaning device 100 is not limited to the above-mentioned cleaning method, and may move the jet nozzle group 50a-50c back and forth. That is, when the cleaning device 100 detects that any part of the transport unit 20 or the jet unit 30 has come into contact with the front limiter switch provided on the transport support unit 14, the cleaning device 100 rotates the actuator 21 in the other direction to move the jet nozzle group 50a-50c to the rear while jetting. When the cleaning device 100 detects that any part of the transport unit 20 or the jet unit 30 has come into contact with the rear limiter switch provided on the transport support unit 14, the cleaning device 100 stops the movement of the jet nozzle group 50a-50c and stops the jetting of the cleaning liquid from the jet nozzle 31, thereby completing the cleaning of the construction floor 1. Furthermore, the cleaning device 100 is not limited to making one reciprocation, but may make multiple reciprocations according to settings made by an operator.

[0037] Thus, the cleaning device 100 of this embodiment moves in the front-rear direction relative to the erected floor 1, which is the object to be cleaned, and has multiple jet nozzles 31 arranged in the left-right direction intersecting the front-rear direction. Therefore, the jet ranges of adjacent jet nozzles 31 in the left-right direction overlap, so that the cleaning liquid can be sprayed from the multiple jet nozzles 31 against the deposits adhering to the erected floor 1, thereby improving the cleaning power of the cleaning device 100.

[0038] <Second embodiment> In the first embodiment, the case where the cleaning device 100 cleans the erected floor 1 is described, but in the second embodiment, the case where the cleaning device 100 cleans the slope device 5 is described. Note that the configuration of the cleaning device 100 in the second embodiment is the same as that in the first embodiment except that the length of the main body of the injection nozzle 31 is longer than that in the first embodiment, and therefore the description will be omitted as appropriate.

[0039] FIG. 4 is a perspective view showing the configuration of the cleaning device 100 and the slope device 5. As shown in FIG. The slope device 5 has a slope section 6 and two legs 7. The slope section 6 is substantially rectangular in plan view. The upper surface of the slope section 6 is an inclined surface that becomes higher from one side of both opposing sides (opposing short sides in this case) toward the other side. In addition, a protruding strip 8 is formed on the upper surface of the slope section 6 along both opposing sides (opposing long sides in this case). A plurality of protruding strips 8 are formed on the entire surface of the slope section 6 at intervals from each other. A worker at a construction site installs the slope section 6 so that it is adjacent to a protruding step provided on the floor surface of the construction site. Therefore, the worker can pass over the step provided at the construction site via the gentle slope section 6. When such a slope device 5 is used at a construction site, dirt, mortar, and other deposits such as dust, etc., are deposited on the upper surface of the slope section 6.

[0040] In order to clean the slope device 5 using the cleaning device 100, the operator of the cleaning device 100 places the slope device 5 between the front ground part 11a and the rear ground part 11b of the base part 10. At this time, it is preferable to place the slope device 5 so that the inclination of the slope part 6 is in the left-right direction, that is, so that one side in the left-right direction is higher and the other side is lower.

[0041] The operator adjusts the position of the entire jet nozzle groups 50a to 50c in the vertical direction in advance according to the vertical height of the slope device 5. The operator also adjusts the jet direction of the jet nozzles 31 for each of the jet nozzle groups 50a to 50c in advance according to the type of deposits that have been attached to the slope device 5. The operator also adjusts the jet direction of each jet nozzle 31 and the interval between adjacent jet nozzles 31 as necessary.

[0042] In this embodiment, the operator adjusts the up-down direction of each of the jet nozzles 31 in advance in accordance with the inclination angle (gradient angle) of the slope portion 6. Fig. 5 is a perspective view showing a state where the up-down direction of the injection nozzle 31 has been adjusted. Here, only the total of 10 injection nozzles 31 of the injection nozzle group 50a are shown, and the other injection nozzles 31 are omitted. Fig. 5(a) is a perspective view of the injection nozzle group 50a as seen from the diagonally upper right side, and Fig. 5(b) is a perspective view of the injection nozzle group 50a as seen from the diagonally lower left side.

[0043] 5, the operator moves the second jet nozzle 31 from the left downward along the axial direction of the main body and fixes it, thereby adjusting it to be located lower than the first jet nozzle 31 from the left. The operator also moves the third jet nozzle 31 downward along the axial direction of the main body and fixes it, thereby adjusting it to be located lower than the second jet nozzle 31 from the left. In this way, the operator adjusts the jet nozzles 31 to be located lower as they become closer to the right.

[0044] FIG. 6 is a diagram showing the configuration of the adjusted injection nozzle group 50a and the slope device 5 as viewed from the front. In Fig. 6, the jet nozzles 31 are positioned lower from the left jet nozzle 31 to the right jet nozzle 31 in accordance with the inclination angle of the slope section 6, and the distance between the jet nozzles 31 and the slope section 6 is adjusted to be constant. Therefore, even for the jet nozzle 31 on the right side, it is possible to suppress a decrease in water pressure when the water is sprayed from the jet nozzle 31 and comes into contact with the upper surface of the slope section 6. Note that the operation of the cleaning device 100 by the operator after adjusting the position of the jet nozzle 31 is the same as in the first embodiment.

[0045] Thus, according to the cleaning device 100 of this embodiment, by adjusting the vertical position of the injection nozzle 31 according to the inclination angle of the slope portion 6 of the slope device 5, which is the object to be cleaned, it is possible to suppress the drop in water pressure when it comes into contact with the upper surface of the slope portion 6, thereby improving the cleaning power of the cleaning device 100.

[0046] <Third embodiment> The ejection unit 30 of the first embodiment has been described as having a configuration in which three left and right arrangement portions 34a to 34c are fixed to the front and rear arrangement portion 32. The ejection unit 130 of the present embodiment will be described as having a configuration in which a total of ten front and rear arrangement portions 132a to 132j ​​are fixed to the left and right arrangement portion 134. The configuration in which a total of 10 injection nozzles 31 are arranged in rows at intervals from each other in the left-right direction and three injection nozzle groups 50a to 50c are arranged at intervals in the front-rear direction is the same as in the first embodiment.

[0047] Fig. 7 is a perspective view showing the configuration of the ejection unit 130 as seen from diagonally above right. Note that Fig. 7 shows only three ejection nozzles 31 located at the right end of each of the ejection nozzle groups 50a to 50c, and the other ejection nozzles 31 are not shown. The ejection section 130 has an ejection nozzle 31, a left / right arrangement section 134, front / rear arrangement sections 132a to 132j, and a nozzle arrangement section 136. Note that in Fig. 7, only the front / rear arrangement sections 132a, 132i, and 132j ​​are shown, and the other front / rear arrangement sections are not shown.

[0048] The left-right arrangement portion 134 is a portion that arranges the jet nozzles 31 arranged in the front-rear direction at intervals in the left-right direction. The left-right arrangement portion 134 is a member that is long along the left-right direction. The left-right arrangement portion 134 is fixed via fixing means 133 such as a bolt so as to sandwich the left-right arrangement portion 134 against the interlocking portion 24 from the front-rear direction. The left-right arrangement portion 134 can move in the up-down direction along the interlocking portion 24 when released from the fixation via the fixing means 133.

[0049] The front-rear arrangement portions 132a to 132j ​​are portions for arranging the multiple jet nozzles 31 of the jet nozzle groups 50a to 50c, respectively, along the front-rear direction. The front-rear arrangement portions 132a to 132j ​​are each a member that is long along the front-rear direction. The front-rear arrangement portions 132a to 132j ​​are fixed via fixing means 135, such as bolts, so that their front ends are sandwiched between the left and right arrangement portions 134 from above and below.

[0050] The nozzle arrangement portion 136 is a portion for arranging each of the injection nozzles 31 at a position determined by an operator of the cleaning device. The nozzle arrangement portion 136 has a first fixing portion 137 and a second fixing portion 138. The first fixing portion 137 is a portion fixed to the front-rear arrangement portions 132a to 132jc. The first fixing portion 137 is fixed to the front-rear arrangement portions 132a to 132j ​​via fixing means 139 such as bolts so as to sandwich the front-rear arrangement portions 132a to 132j ​​from the left and right directions. The nozzle arrangement portion 136 can move in the front-rear direction along the front-rear arrangement portions 132a to 132j ​​in a state where the fixing via the fixing means 139 is released. Therefore, the nozzle arrangement portion 136 can be moved along the front-rear arrangement portions 132a to 132jc and then fixed again via the fixing means 139, thereby adjusting the interval between the jet nozzles 31 adjacent in the front-rear direction. Here, the nozzle arrangement portion 136, the front-rear arrangement portions 132a to 132j, and the fixing means 139 correspond to an example of an adjustment means capable of adjusting the interval between the jet nozzles 31 adjacent in the front-rear direction.

[0051] The second fixing part 138 is a part that fixes the injection nozzle 31. The second fixing part 138 fixes the injection nozzle 31 so that the injection direction (injection angle) of the injection nozzle 31 is inclined with respect to both the vertical and horizontal directions. The second fixing part 138 fixes the main body of the injection nozzle 31 via fixing means 140 such as a bolt so as to sandwich the main body of the injection nozzle 31 from the front and rear directions. When the main body of the injection nozzle 31 is released from the fixing means 140 of the second fixing part 138, the injection nozzle 31 can be moved along the axial direction (injection direction) of the main body.

[0052] The second fixing part 138 has a substantially circular shaft part 141 that protrudes integrally toward the left side, and the first fixing part 137 clamps the shaft part 141 from the front-rear direction and fixes it via fixing means 142 such as a bolt. Since the shaft part 141 is substantially circular, when the fixing via the fixing means 142 is released, the second fixing part 138 can be rotated around the axis of the shaft part 141. Therefore, by rotating the second fixing part 138 around the axis and then fixing it again via the fixing means 142, the spray direction of the spray nozzle 31 can be individually adjusted in the front-rear direction.

[0053] While the present invention has been described above with reference to the above-described embodiment, the present invention is not limited to the above-described embodiment, and modifications can be made within the scope of the present invention by combining the various embodiments and the following modified examples.

[0054] The cleaning device 100 of this embodiment has been described as being used to clean temporary equipment such as a construction floor 1 and a slope device 5, but this is not limited to this case and may also be used to clean temporary equipment such as transport carts and work tables, or to clean objects other than temporary equipment.

[0055] The cleaning device 100 of this embodiment has been described as having a total of 10 spray nozzles 31 arranged along the left-right direction, but this is not limited to this case, and a total of 11 or more spray nozzles 31 may be arranged, or a total of 9 or less spray nozzles 31 (including 1) may be arranged. The cleaning apparatus 100 of this embodiment has been described as having three rows of jet nozzle groups 50a to 50c arranged therein, but this is not limited to this case, and three or more rows of jet nozzle groups may be arranged, or three or less rows of jet nozzle groups (including one row) may be arranged.

[0056] In this embodiment, the cleaning apparatus 100 has been described as having the same number of jet nozzles 31 in each of the three rows of jet nozzle groups 50a to 50c, but this is not limited to this case, and the numbers in all three rows may be different, or two of the three rows may have different numbers. In this embodiment, the conveying section 20 has been described as moving the spraying section 30 in the forward / backward direction relative to the object to be cleaned, but this is not limited to this case, and the conveying section 20 may be configured to move the object to be cleaned in the forward / backward direction relative to the spraying section 30 without moving the spraying section 30.

[0057] In this embodiment, the cleaning device 100 has been described as having multiple injection nozzles 31 arranged at intervals from each other in the left-right direction, but this is not limited to this case, and the injection nozzles 31 may be arranged in a direction intersecting the front-rear direction. [Explanation of symbols]

[0058] 100: cleaning device 1: construction floor 5: slope device 10: base section 20: transport section 30: spray section 31: spray nozzle 32: front-rear arrangement section 34a-34c: left-right arrangement section 36: nozzle arrangement section 50a-50c: spray nozzle group 134: left-right arrangement section 132a-132j: front-rear arrangement section 136: nozzle arrangement section

Claims

1. A cleaning device having a spray nozzle for spraying a cleaning liquid onto an object to be cleaned, The injection nozzle is A cleaning device that moves in a first direction relative to the object to be cleaned, and a plurality of cleaning devices are arranged in the first direction.

2. 2. The cleaning device according to claim 1, further comprising an adjusting means for adjusting the interval between adjacent jet nozzles in the first direction.

3. A cleaning device as described in claim 1 or 2, characterized in that it has an adjustment means for simultaneously adjusting the vertical positions of adjacent spray nozzles in the first direction.

4. A cleaning device as described in claim 1 or 2, characterized in that it has an adjustment means for individually adjusting the vertical positions of adjacent spray nozzles in the first direction.

5. A first adjustment means for simultaneously adjusting the vertical positions of adjacent injection nozzles in the first direction; 3. The cleaning device according to claim 1, further comprising: second adjusting means for individually adjusting the vertical positions of the jet nozzles adjacent to each other in the first direction.

6. 3. The cleaning device according to claim 1, further comprising an adjustment means for adjusting the jet direction of the jet nozzle.

7. The injection nozzle is spraying the cleaning liquid from the spray nozzle so as to spread at a first angle when viewed along the first direction; 3. The cleaning device according to claim 1, wherein the cleaning liquid is sprayed from the nozzle of the spray nozzle so as to spread at a second angle different from the first angle when viewed along a second direction perpendicular to the first direction.

8. A conveying unit that conveys the injection nozzle in the first direction; a transport support part that supports the transport part, 3. The cleaning apparatus according to claim 1, wherein the transport support portion is arch-shaped.

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