Spray device and its support body

Abstract

To provide a spray device and a support body that perform stable spraying.SOLUTION: A spray device 20 comprises spray means and a support body 10 of the spray means. The support body 10 has a hangable main body 3 and an arm 4 extending from the main body 3. The spray means comprises a spray nozzle 12, a spray hose 9 and an arm 11 moving the spray nozzle 12 and the spray hose 9 in a spray direction. There are a plurality of arms 4 spaced 30 to 60 degrees apart from each other, two neighboring arms 4 of the plurality of arms are used to fix a slope and stabilize the posture, the spray nozzle 12 is directed to the slope by the arm 11, and the arm 11 is moved up and down and left and right to perform a spray work.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a spraying device and a support for this device. [Background technology]

[0002] When reinforcing or stabilizing slopes, sprayed materials such as concrete and mortar are used. A commonly used method is to spray the material onto the slope from a spray nozzle at the end of a hose. In this case, when the spraying location is at a high altitude, it is dangerous for workers to perform the spraying work on site, so a remotely operable spraying device may be used.

[0003] One example of this type of spraying device is one that can flexibly control the spraying direction (Patent Document 1). This spraying device has a spraying unit that sprays the spray material and a flywheel unit that rotates the spraying unit, and the inertial force generated by rotating the flywheel unit changes the direction of the spraying device and maintains its position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6945417 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above-mentioned spraying device, the entire spraying device can move due to the handling or twisting of the hose connected to the spray nozzle, which can cause the attitude of the spraying device suspended by a crane to become unstable, resulting in the problem of uneven spraying.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a spraying device that can perform stable spraying and a support provided for this spraying device. [Means for solving the problem]

[0007] The present invention, which has solved the above problems, is as follows. [First aspect] A support for a spraying device comprising a spraying means and a support for the spraying means, The support for the spraying means comprises a hangable body and a plurality of arms extending from the body; The angle between the adjacent arms is 30 degrees to 60 degrees. A support for a spraying device.

[0008] [Second Aspect] A hose holder is provided rotatably relative to the main body. 1. A support for a spray device according to the first embodiment.

[0009] [Third Aspect] The plurality of arms are each independently extendable and retractable. 1. A support for a spray device according to the first embodiment.

[0010] [Fourth aspect] At least one of the arms has a pressing member at its tip. 1. A support for a spray device according to the first embodiment.

[0011] [Fifth aspect] The pressing member is spherical and connected to the arm via an elastic member. A support for a spray device according to the third embodiment.

[0012] [Sixth Aspect] The spraying means includes a spray nozzle, a spray hose, and an arm that moves the spray nozzle and the spray hose in a spraying direction. 1. A support for a spray device according to the first embodiment.

[0013] [Seventh Aspect] A spraying means and a support according to the first aspect are provided. A spraying device characterized by: [Effects of the Invention]

[0014] According to the present invention, a spraying device and a support therefor are provided that can stabilize the main body and perform uniform spraying. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a top view of a spraying device and a support according to an embodiment of the present invention. [Figure 2] FIG. 1 is a top view of an example of use of the spray device and support of the present embodiment. [Figure 3] FIG. 1 is a side view of an example of use of the spraying device and support of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Next, an embodiment of the present invention will be described. Note that this embodiment is an example of the present invention. The scope of the present invention is not limited to the scope of this embodiment.

[0017] 1 to 3 show a spraying device 20 of this embodiment and a support 10 that constitutes this spraying device 20. In addition to the support 10, the spraying device 20 of this embodiment is composed of spraying means that has a spray nozzle 12, a spray hose 9, an arm 11, etc. The support 10 is mainly composed of a main body 3 , an arm 4 , a pressing member 7 , an elastic member 8 , a hose holder 6 , and a hanging means 5 . The support 10 is not limited as long as it is equipped with a spraying means, and may be, for example, a stand-like structure consisting of pillars and beams, or a box-shaped structure such as a rack.

[0018] The support body 10 has multiple arms 4 extending from the main body 3 of the support body 10 toward the slope G, which are brought into contact with the slope G, and the support body 10 is stabilized while spraying is performed using a spraying means. As shown in Figure 3, the support body 10 is suspended in the air by a hanging means 5, but since the support body 10 is supported by multiple arms 4 extending from the main body 3 toward the slope G, its posture during spraying is fixed, making it possible to perform the spraying work stably. In this embodiment, the support body 10 is supported by two adjacent arms 4.

[0019] (Main body) The support 10 comprises a main body 3 and arms 4, and the main body 3 is a frame shaped like a regular polygon. The main body 3 is also provided with a hanging means 5, and when using the spraying device 20, as shown in FIG. 3, a wire hanging from a crane or the like (not shown) is connected to the hanging means 5, and the main body 3 is suspended in the air. The hanging means 5 may be hook-shaped or ring-shaped, and is not limited to any particular shape as long as it allows the main body 3 to be suspended by a wire. Since the main body 3 of the support 10 of this embodiment is suspended at four points, it is easier to maintain balance if the frame is a regular polygon (in plan view) that is a multiple of four. In the illustrated example, the shape is a regular octagon, but this is not limiting.

[0020] (arm) The regular polygonal frame of the main body 3 houses multiple arms 4 that can each extend and retract toward the slope G. In this embodiment, the multiple arms 4 are housed at the vertices of the regular polygon. No arms 4 are present in the portion of the main body 3 where the hose holder 6 (described later) is located. As shown by the dashed lines in FIG. 1 , each arm 4 is extendable and retractable, and the length of each arm 4 can be adjusted. Therefore, even if the slope G is uneven, the length can be freely changed to match the distance from the slope G, resulting in good tracking. When the lengths of the multiple arms 4 are adjusted to the same length, adjacent pairs of arms 4 among the multiple arms 4 successively press down on the slope G, resulting in efficient spraying operations. Furthermore, if the length of the arms 4 does not change during spraying, there is no need to provide components for adjusting the length, and therefore the weight of the arms 4 can be reduced.

[0021] Each arm 4 can be extended or retracted by 1 to 2 m, with a maximum length of 1.5 to 3.5 m from the center of the main body 3 to the tip of the arm 4, and it is preferable that when the arm 4 is retracted, the minimum length from the center of the main body 3 to the tip of the arm 4 can be 0.5 to 1.5 m. The number of arms 4 is not limited as it differs depending on the shape of the main body 3 and the angle formed by adjacent arms 4, but preferably there are 3 to 10 arms, and more preferably there are 6 arms.

[0022] When the main body 3 has a regular octagonal shape in a plan view, the arms 4 are radially extendable and retractable, and the angle between adjacent arms 4 is 45 degrees. As shown in FIG. 2 , adjacent arms 4 extend from the main body 3 at 45 degrees, contacting the slope G and supporting the entire support 10. If the angle between adjacent arms 4 is too large, a large moment force is applied to the base of the arm 4, which may cause the arm 4 to break or fracture. Conversely, if the angle is too small, the distance between the two points that contact the slope G and support the entire support 10 is short, making it virtually the same as supporting the support 10 at a single point. As a result, the arms 4 and support 10 may move, preventing stable support of the entire support 10 and potentially causing the spraying device 20 to become unstable. From this perspective, the angle between adjacent arms 4 is preferably 30 to 60 degrees, more preferably 35 to 55 degrees, and particularly preferably 40 to 50 degrees. As shown in the illustrated example, when the angle between adjacent arms 4 is appropriate, multiple arms 4 can contact the slope G via the pressing member 7, making it easier for the support 10 to be fixed to the slope G and making the posture during spraying more stable.

[0023] The use of the support body 10 is not limited to the way shown in Figure 2, and it is also possible to extend all of the multiple arms 4 to the same length before the spraying work, and then fix two adjacent arms 4 to the slope G during the spraying work. It is also possible to extend and retract each arm 4 automatically or by remote control during the spraying work. Furthermore, the number of arms 4 fixed to the slope G is not limited to two, and it is also possible to increase the number to three or more to make the main body 3 more stable.

[0024] Of the multiple arms 4, the distance between arm 4a located at one end and arm 4b located at the other end is between 180 and 315 degrees, more preferably between 200 and 310 degrees, and particularly preferably between 210 and 300 degrees. If the angle from arm 4a to arm 4b located at the other end is less than 180 degrees, the range in which spraying work can be performed is narrowed, which may make it difficult to spray a wide slope G. If the angle from arm 4a to arm 4b located at the other end is greater than 315 degrees, the operating range of arm 11 is increased, and the range in which spraying work can be performed is widened, but the operating range of hose holder 6 is narrowed, which may cause twisting of spray hose 9 when arm 11 is moved.

[0025] At the tip of the arm 4 is a pressing member 7, which can fix the support body 10 to the slope G. When the arm 4 extends toward the slope G and the pressing member 7 comes into contact with the uneven slope G, it is less likely that the pressing member 7 will stick into or sink into the slope G, so it is desirable that the pressing member 7 be spherical.

[0026] Since the pressing member 7 is connected to the arm 4 via an elastic member 8, it is easy to absorb the impact caused by the reaction force generated when the spraying material is sprayed, and makes it less likely that the support 10 for the spraying device 20 will shake due to the reaction force.

[0027] The material of the pressing member 7 is not limited as long as it is resistant to breakage and deterioration, but it is preferably at least one of rubber and metal. Rubber is easy to absorb the impact when the pressing member 7 is pressed against the slope G. Metal is strong, durable, and likely to last a long time.

[0028] If the arm 4 extending from the main body 3 extends horizontally, it will naturally strike the slope G at a slightly smaller angle rather than perpendicularly, thereby mitigating the impact. On the other hand, if the arm 4 extends slightly downward, for example, at an angle of 1 (more than 0) to 45 degrees downward, it will strike the slope G perpendicularly or nearly perpendicularly, thereby increasing the fixing force.

[0029] In this embodiment, when transporting the support 10 to the site, the arms 4 can be stored in the main body 3. The support 10 does not become too large during transportation, making it easy to carry. After use, it can be easily stored when storing it in a warehouse.

[0030] (Spraying means) The support 10 for the spraying device 20 is equipped with a spraying means, so that the spray material sent from the spray hose 9 is released from the spray nozzle 12, thereby spraying the slope G. The spraying means is mainly composed of the spray nozzle 12, the spray hose 9, and an arm 11 that moves the spray nozzle 12 and the spray hose 9 in the spraying direction. As shown by the dashed lines in Figure 1, the position and direction of the spray nozzle 12 and the spray hose 9 can be changed by the arm 11, so that no matter which two adjacent arms 4 are fixed to the slope G, the spray nozzle 12 can be directed toward the slope G to be sprayed.

[0031] The spraying means may spray from any point on the slope G as long as the desired area is sprayed. However, in consideration of work efficiency and the neatness of the finished slope G, it is desirable to move the crane, spraying device 20, and support body 10 as follows.

[0032] That is, spraying work begins at one of the left and right corner sections of the entire slope G where spraying is to be performed. In this embodiment, the spraying device 20 is stabilized by fixing two of the multiple arms 4 outstretched to the slope G at the lower left section, which is the starting position. The spraying work is then performed while moving the arm 11 up, down, left, and right, until spraying within the range of movement of the arm 11 is completed. This marks the end of spraying of the first section. Once spraying of the first section is complete, the support body 10 suspended by the crane is moved so that the spraying device 20 is positioned in the section immediately to the right of the first section. Then, spraying work is performed in the next section in the same manner as in the first section. Once spraying of the next section is complete, the crane again moves to the right on the slope G, and spraying work is performed in the section immediately to the right. This process is repeated as the crane moves forward.

[0033] After spraying the bottom right section, the crane moves from the row where it has been spraying to the next row above where it has not yet sprayed, and continues spraying there. Once spraying in that section is finished, the crane moves left up slope G and sprays the next section to the left. This process is repeated as the crane moves leftwards. After spraying the leftmost section in that row, the crane moves to the next section above slope G and sprays that section. After spraying is complete, the crane continues spraying while moving rightwards. In other words, continuous horizontal spraying is repeated from bottom to top until the entire slope G is sprayed.

[0034] In the spraying device 20 of this embodiment, a wire for suspending the support 10 by a crane or the like is provided on the upper part of the main body 3, so it is desirable that the spraying means be attached to the lower part of the main body 3 so as not to interfere with this. However, the position of the spraying means is not limited, and it may be attached to the upper part of the support 10 as long as it does not interfere with the spraying work.

[0035] The spraying means can be equipped with a laser or ultrasonic range finder, and the spraying operation can be carried out while maintaining a constant distance between the slope G and the spray nozzle 12.

[0036] (hose holder) The spray hose 9, which delivers the spray material to the spray nozzle 12 constituting the spraying means, has one end connected to the opposite side of the spray nozzle 12's outlet and the other end housed in a hose holder 6 attached to the main body 3. As shown by the dashed line in FIG. 1 , the hose holder 6 itself is rotatable. Therefore, when the spraying means moves due to the movement of the arm 11, the spray hose 9 can follow that movement, making it easier to prevent the spray hose 9 from twisting and the entire support 10 for the spraying device 20 from shaking or tilting. The hose holder 6 is provided in a portion of the main body 3 where the arm 4 is not present so that the extension and retraction movement of the arm 4 and the rotational movement of the hose holder 6 do not interfere with each other. As shown in FIG. 1 , the hose holder 6 may rotate around the position where the hose holder 6 is attached to the main body 3, or, although not shown, it may rotate widely around the center of the main body 3.

[0037] The hose holder 6 is not limited to any particular shape as long as it can bundle a long spray hose 9, and may be in a shape that stores the spray hose 9 or a shape that hangs the spray hose 9. If the hose holder 6 is shaped to wind up the spray hose 9, the hose holder 6 with the spray hose 9 wound around it will be somewhat heavy, so it is possible to balance it with the support body 10 by moving the position of the hose holder 6. If the support body 10 tilts when the spraying means is moved by moving the arm 11, when the crane and spray device 20 are moved during the spraying process, or when the arm 4 is extended or retracted in accordance with the slope G, the hose holder 6 can be rotated to correct the tilt of the support body 10.

[0038] Although it depends on the material of the spray hose 9, when the hose holder 6 is shaped to hang the spray hose 9, the hose holder 6 with the spray hose 9 hung on it is easier to achieve a lighter weight than the hose holder 6 shaped to wind up the spray hose 9 as described above. Therefore, it is possible to hang two or more spray hoses 9 on one hose holder 6 and connect each to a spray nozzle 12, thereby providing two or more spraying means for one support body 10. It is also possible to provide multiple hose holders 6, hang a spray hose 9 on each of them, and connect each to a spray nozzle 12, thereby providing multiple spraying means for one support body 10. The ability to provide multiple spraying means increases the speed and efficiency of spraying work on slopes G.

[0039] (others) By installing a camera on the main body 3, the worker can use the captured video for spraying management and remote control. Since mortar bounces off the arm 11 and spray nozzle 12, it is better to install the camera on the main body 3.

[0040] Furthermore, during spraying operation, movement of the spray means by the arm 11 may cause the entire spray device 20 to tilt, tilting the trajectory of the spray nozzle 12. If this occurs, it will be difficult to achieve uniform spraying, so an inertial measurement device can be attached to the main body 3 to monitor and correct the tilt of the spray device 20. By making the correction, tilting of the spray device 20 due to movement of the spray device 20 can be prevented, and the trajectory of the spray nozzle 12 can be made linear, making it easier to achieve uniform spraying. In this case, there is no need to balance the support body 10 with the hose holder 6. [Industrial Applicability]

[0041] INDUSTRIAL APPLICABILITY The present invention can be used as a spraying device for spraying material onto slopes that is hung from a crane or the like, and as a support for the device. [Explanation of symbols]

[0042] 10...support, 20...spraying device, 3...main body, 4...arm, 5...hanging means, 6...hose holder, 7...pressing member, 8...elastic member, 9...spraying hose, 11...arm, 12...spraying nozzle, G...slope

Claims

1. A support for a spraying device comprising a spraying means and a support for the spraying means, The support for the spraying means comprises a hangable body and a plurality of arms extending from the body; The angle between the adjacent arms is 30 degrees to 60 degrees. A support for a spraying device.

2. A hose holder is provided rotatably relative to the main body. A support for a spray device according to claim 1.

3. The plurality of arms are each independently extendable and retractable. A support for a spray device according to claim 1.

4. At least one of the arms has a pressing member at its tip. A support for a spray device according to claim 1.

5. The pressing member is spherical and connected to the arm via an elastic member. A support for a spray device according to claim 5.

6. The spraying means includes a spray nozzle, a spray hose, and an arm that moves the spray nozzle and the spray hose in a spraying direction. A support for a spray device according to claim 1.

7. A spraying means and the support according to claim 1. A spraying device characterized by:

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