JPH0652947U - Telescopic riser for sprinkler - Google Patents

Abstract

(57) [Summary] [Purpose] To stably support the telescopic riser body of the sprinkler telescopic riser and improve workability during installation, movement and removal. A telescopic riser for a sprinkler according to the present invention comprises a telescopic riser body 7 composed of a lower tube body 8, a connecting tube 9 and an upper tube body 10, and a lower tube body 8 of the telescopic riser body 7.
The four pillar mounting portions 1a are fixed to the outer periphery of the connecting cylinder 9 side.
A mounting bracket 1 having four, four columns 2 rotatably supported by each of the column mounting portions 1a and extending radially with respect to the lower tube 8 to vertically hold the lower tube 8, and a lower portion. A slide metal fitting 5 provided between the water supply pipe connecting portion 8b of the pipe body 8 and the mounting metal fitting 1 so as to be movable in the pipe axial direction and having four auxiliary support pillar mounting portions 5a, and provided in the middle of each of the pillars 2, respectively. The support metal fitting 6 and the four auxiliary support pillars 4 rotatably supported by each of the auxiliary pillar mounting portions 5a and rotatably connected to each of the support metal fittings 6 are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sprinkler telescopic riser, and more particularly to a sprinkler telescopic riser having a plurality of columns for holding a telescopic riser body substantially vertically.

[0002]

[Prior art]

 Expansion sprinkler risers are widely used in tea fields and orchards because they can adjust the sprinkler sprinkling position according to the growth of plants. Expandable risers for sprinklers are also widely used for irrigation, fertilization, and pesticide application. For example, a telescopic riser disclosed in Japanese Patent Application No. 63-18373 is a lower pipe connected to a mother pipe communicating with a water supply source, and a seal fixed to the tip of the lower pipe and on the inner peripheral side. A connecting cylinder having a member and an upper pipe body having a sprinkler head on an upper part, which is inserted into the lower pipe body through the inside of the connecting cylinder, are provided. The upper tube can be expanded and contracted with respect to the lower tube. A pipe gripping member having an abutment portion is detachably connected to the end of the connecting cylinder where the upper pipe body is inserted, and a split ring is arranged on the inner wall surface of the pipe gripping member. The joint portion of the pipe gripping member is tightened by tightening means (bolts and wing nuts), and the split ring is reduced in diameter to grip the upper pipe body. Thereby, the sprinkler head of the upper tube can be fixed at a predetermined height. Further, a so-called portable telescopic riser for a sprinkler in which a plurality of columns for holding the telescopic riser body having the above-mentioned configuration in a substantially vertical manner are provided and a mother pipe communicating with a water supply source is detachable has been widely used. There is. As shown in FIG. 7, this sprinkler telescopic riser includes a telescopic riser main body 7 and a mounting bracket 1 that is fixed to the outer periphery of the telescopic riser main body 7 and has three column mounting portions 1a extending radially with respect to the telescopic riser main body 7. And three support columns 2 that are rotatably supported by each of the column mounting portions 1a of the mounting bracket 1 and that extend radially with respect to the telescopic riser body 7 and hold the telescopic riser body 7 substantially vertically. Is equipped with. The number of columns 2 may be four as shown in FIG. A plate-shaped stopper 3 is provided at the tip of each strut 2 to prevent the tip of each strut 2 from slipping into the ground more than necessary due to surface contact with the ground. The stopper 3 may be fixed to the tip portion of each support column 2 or may be provided so as to be slightly swingable. Further, the tips of the columns 2 are pointed, and the points can be pierced into the ground to fix the columns 2 to the ground.

[0003]

[Problems to be solved by the device]

 By the way, in the expansion and contraction riser for sprinkler shown in FIGS. 7 and 8, a plurality of struts 2 are rotatably supported by each of the stanchion mounting portions 1a of the mounting bracket 1, and each stanchion 2 is independent. Since it moves, it is difficult to keep the angle of attachment of each support post 2 to the ground constant, and there is a drawback that the expandable riser body 7 cannot be supported stably. Further, in order for the plurality of support columns 2 to withstand wind pressure and support the expandable riser main body 7, it is necessary to secure a certain degree of strength so that each support column 2 does not bend or the like. Since it is necessary to increase the rigidity of each of the columns 2, there is a drawback that the weight of each of the columns 2 increases and workability at the time of installing, moving and removing the expansion and contraction riser for the sprinkler decreases.

Therefore, an object of the present invention is to provide a telescopic riser for a sprinkler capable of stably supporting the telescopic riser body and improving workability during installation, movement and removal.

[0005]

[Means for Solving the Problems]

 The sprinkler telescopic riser according to the present invention is connected to a lower pipe body that can be connected to a water supply pipe that communicates with a water supply source, a connecting pipe that is fixed to the open end of the lower pipe body, and has a seal member on the inner peripheral side. An upper tube that is inserted into the lower tube through the tube in a stretchable manner and has a sprinkler head at one end, and three or more columns that are fixed to the connecting tube side of the outer circumference of the lower tube and that extend radially with respect to the lower tube. A mounting member having a mounting portion, and three or more columns that are rotatably supported by each of the column mounting portions of the mounting member and extend radially with respect to the lower tube body to hold the lower tube body substantially vertically. And a slide member that is provided between the water supply pipe connection portion of the lower pipe body and the mounting member so as to be movable in the pipe axis direction and that has three or more auxiliary column mounting portions that extend radially with respect to the lower pipe body. Between the columns and A support member for, and an auxiliary post mount portion 3 or more auxiliary posts, each being in a pivotably supported and pivotally connected to each of the plurality of support members of the slide member. In addition, a plate-shaped stopper may be provided at the tip of each column.

[0006]

[Action]

 Each strut is connected to each other by connecting a slide member, which is provided on the outer periphery of the lower tubular body that constitutes the expansion and contraction riser main body, so as to be movable in the pipe axis direction and a support member provided in the middle of each strut via auxiliary strut. Is supported by the auxiliary columns, the mounting angle of each column to the ground can be made constant and the rigidity of each column can be improved without increasing the weight of each column. Therefore, it is possible to stably support the telescopic riser body and improve workability during installation, movement, and removal.

[0007]

【Example】

 Hereinafter, an embodiment of a stretch riser for a sprinkler according to the present invention will be described with reference to FIGS. However, in these drawings, substantially the same parts as those in FIGS. 7 and 8 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIGS. 1 to 3, a telescopic riser body 7 constituting the telescopic riser for a sprinkler according to the present invention includes a lower pipe body 8 having a water supply pipe connecting portion 8b capable of connecting a water supply pipe communicating with a water supply source. A connecting tube 9 fixed to the open end 8a of the lower tube 8; and an upper tube 10 having a sprinkler head 11 at one end which is extendably inserted into the lower tube 8 through the connecting tube 9. . Stainless steel, aluminum, iron, or alloys thereof are used for the expandable riser body 7. As shown in detail in FIGS. 5 and 6, the connecting cylinder 9 has a connecting cylinder body 9a for accommodating the seal member 12 on the inner peripheral side and an abutment portion 16 and is detachably attached to the upper end of the connecting cylinder body 9a. It is composed of a pipe gripping member 9b to be connected. A projecting piece 18 and a connecting portion 17 are formed on the outer peripheral surfaces of the connecting tube body 9a and the pipe gripping member 9b, and the connecting tube body 9a and the projecting piece 18 are fastened together with a bolt 19 and a nut 20. 9a and the pipe gripping member 9b are detachably fixed. A split ring 13 having a notch (not shown) is arranged on the inner wall surface of the pipe gripping member 9b. For the split ring 13, a soft synthetic resin having a large mechanical strength such as Duracon is used. At the abutment portion 16 of the pipe gripping member 9b, the split ring 13 is reduced in diameter by tightening with the bolt 15 and the wing nut 14, and the upper pipe body 10 is gripped. Thereby, the sprinkler head 11 of the upper tubular body 10 can be fixed at a predetermined height. A projection 16a is provided on the abutment portion 16 of the pipe gripping member 9b to prevent overtightening of the abutment portion 16 by the bolt 15 and the wing nut 14.

Further, the expandable riser main body 7 is provided with a mounting metal fitting (mounting member) having four strut mounting portions 1 a fixed to the outer periphery of the lower tubular body 8 on the side of the connecting cylinder 9 and extending radially with respect to the lower tubular body 8. ) 1 and four pillar mounting portions 1 a of the mounting bracket 1 are rotatably supported by hinges and radially extend with respect to the lower tube body 8 to hold the lower tube body 8 substantially vertically. Four auxiliary column mounting parts 5a provided movably in the pipe axis direction between the column 2, the water supply pipe connecting portion 8b of the lower pipe body 8 and the fitting 1, and extending radially with respect to the lower pipe body 8. A slide metal fitting (slide member) 5 having a support metal fitting, a support metal fitting (supporting member) 6 fixed to the middle of each pillar 2, and an auxiliary pillar mounting portion 5a of the slide metal fitting 5 are rotatably supported by hinges. And pivotally connected to each of the plurality of support brackets 6 so as to be rotatable. Four auxiliary supports 4 which are provided. For each member of the support column 2 and the auxiliary support column 4 in this embodiment, a stainless steel pipe or the like having excellent strength and rust resistance is used. A disk-shaped stopper 3 is provided at the tip of each strut 2 to prevent the tip of each strut 2 from slipping into the ground more than necessary due to surface contact with the ground. The tip of each strut 2 is formed into a tip, and the tip can be pierced into the ground to fix each strut 2 to the ground. As shown in FIG. 4, the hole 3a of the stopper 3 is arranged between the two annular projections 2a of the support column 2 to prevent the stopper 3 from slipping out and allow the stopper 3 to slightly swing.

In the above structure, when installing the expansion and contraction riser for the sprinkler, if the four columns 2 are opened as shown in FIG. 2, the four support fittings 6 and the four auxiliary columns 4 are inserted. The connected slide fittings 5 move along the outer circumference of the lower pipe body 8 downward in the pipe axial direction, that is, toward the water supply pipe connecting portion 8b side of the lower pipe body 8, and the columns 2 are radially arranged with respect to the lower pipe body 8. It extends and holds the lower tube 8 vertically. At this time, since the opening angles of the columns 2 with respect to the lower tubular body 8 are all the same, the telescopic riser main body 7 can be held accurately vertically. In addition, when removing the sprinkler expansion riser and moving the installation location, if the four columns 2 are closed as shown in FIG. 3, the four support brackets 6 and the four auxiliary columns 4 are inserted. The connected slide fittings 5 move along the outer circumference of the lower tube body 8 in the axial direction of the pipe, that is, toward the open end 8a side of the lower tube body 8, and the columns 2 are drawn toward the lower tube body 8 side and folded. . At this time, since each strut 2 is connected to the slide fitting 5 by each auxiliary strut 4, it is possible to maintain the folded state of each strut 2 for easy transportation and the like.

As described above, in this embodiment, the slide member 5 movably provided on the outer periphery of the lower tubular body 8 constituting the telescopic riser main body 7 so as to be movable in the tubular axial direction and each of the columns 2 are provided respectively. Since the support members 6 are connected to each other via the auxiliary support columns 4, each support column 2 is supported by each auxiliary support column 4, the mounting angle of each support column 2 to the ground can be made constant, and the weight of each support column 2 can be increased. It is possible to improve the rigidity of each of the columns 2. Therefore, the telescopic riser body 7 can be stably supported, and workability during installation, removal, and movement can be improved. Further, since the disk-shaped stoppers 3 are provided at the tips of the columns 2, it is possible to prevent the tips of the columns 2 from getting into the ground more than necessary.

The embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified. For example, although the number of the columns 2 and the auxiliary columns 4 is four in the above embodiment, the number of the columns 2 and the auxiliary columns 4 may be three or five or more. Further, in the above-mentioned embodiment, an example in which stainless steel is used for each member of the support column 2 and the auxiliary column 4 is shown, but other metal materials such as iron and aluminum may be used, and FRP (glass fiber reinforced) may be used. High-strength synthetic resin materials such as plastic) and carbon fiber reinforced plastic may be used. Further, the lower tube body 8, the connecting tube 9 and the upper tube body 10 constituting the expandable riser main body 7 may use the above-mentioned high strength synthetic resin material. Further, it goes without saying that the stopper 3 may be fixed to the tip of each of the columns 2, and the shape of the stopper 3 is not limited to the disk shape shown in the drawing.

[0012]

[Effect of device]

 As described above, in the present invention, the auxiliary strut is provided with the slide member that is provided on the outer periphery of the lower tubular body that constitutes the telescopic riser body so as to be movable in the axial direction of the pipe, and the supporting member that is provided in the middle of each strut. Since the columns are connected via the auxiliary columns, the columns are supported by the auxiliary columns, the mounting angle of each column to the ground can be made constant, and the rigidity of each column can be improved without increasing the weight of each column. For this reason, it is possible to stably support the telescopic riser body and improve workability during installation, removal, and movement.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a telescopic riser for a sprinkler according to the present invention.

FIG. 2 is a front view showing a state in which each strut is opened.

FIG. 3 is a front view showing a state in which each pillar is closed.

FIG. 4 is a cross-sectional view of the tip of each strut.

FIG. 5 is an enlarged partial sectional view of a connecting cylinder.

FIG. 6 is a plan view of FIG.

FIG. 7 is a perspective view showing a part of a conventional telescopic riser for a sprinkler.

FIG. 8 is a perspective view showing another conventional example.

[Explanation of symbols]

1. ． ． Mounting bracket (mounting member), 1a. ． ． Prop mounting part, 2. ． ． Stanchions, 2a. ． ． Annular protrusion, 3. ． ． Stopper, 4. ． ． Auxiliary column, 5. ． ． Slide fittings (slide members), 5a. ． ． Auxiliary column mounting part, 6. ． ． Support metal fittings (support members), 7. ． ． Telescopic riser body, 8. ． ．
Lower tube, 8a. ． ． Open end, 8b. ． ． Water pipe connection,
9. ． ． Connection tube, 9a. ． ． Connection tube body, 9b. ． ． Tube gripping member, 10. ． ． Upper tube, 11. ． ． Sprinkler head, 12. ． ． Sealing member, 13. ． ． Split ring, 14. ． ． Wing nut, 15. ． ． Bolt, 1
6. ． ． Abutment, 16a. ． ． Protrusions, 17. ． ． Connection part, 18. ． ． Projecting piece, 19. ． ． Bolt, 20. ． ． nut

Claims (2)

[Scope of utility model registration request] 1. A lower pipe body connectable to a water supply pipe communicating with a water supply source, a connecting pipe fixed to an open end of the lower pipe body and having a seal member on an inner peripheral side, and a lower pipe body passing through the inside of the connecting pipe. Member which has a sprinkler head at one end and which can be expanded and contracted to the upper tube body, and three or more strut mounting portions which are fixed to the connecting cylinder side of the outer circumference of the lower tube body and which extend radially with respect to the lower tube body. And a sprinkler expansion / contraction apparatus, which is rotatably supported by each of the column mounting portions of the mounting member and radially extends with respect to the lower tube body to hold the lower tube body substantially vertically. In the riser, a slide member provided between the water supply pipe connecting portion of the lower pipe body and the mounting member so as to be movable in the pipe axis direction, and having three or more auxiliary column mounting portions extending radially with respect to the lower pipe body. ,
A support member provided in the middle of each of the columns, and three or more auxiliary columns rotatably supported by each of the auxiliary column attachment portions of the slide member and rotatably connected to each of the plurality of support members. Stretch riser for sprinkler, which is equipped with. 2. The expansion / contraction riser for a sprinkler according to claim 1, wherein a plate-shaped stopper is provided at each tip of each of the columns.