JP6851249B2 - Pipe positioning tool - Google Patents

Description

The present invention relates to a pipe positioning tool used in a heat exchanger buried in the ground for positioning a pipe for circulating a heat medium inside in a spiral shape extending in a vertical direction at a predetermined pitch.

In Patent Document 1, a metal wire suspended in the vertical direction is passed through a through hole of a pipe holder, the pipe holder is positioned with respect to the wire by a fastener fixed to the wire, and the pipe holder is used. A method of fixing the pipe is disclosed. However, the pipe fixing method of Patent Document 1 has a problem that the work efficiency is poor because it takes time and effort to attach the pipe holder and the fastener to the wire, and if the wire is passed through the pipe holder incorrectly, the process is restarted from the beginning. It was. Therefore, in recent years, as another method for fixing a pipe, a method has been proposed in which a resin belt is used instead of a wire, a through hole is formed in the belt, and the pipe is fixed by a binding band or the like passed through the through hole. ing.

Japanese Unexamined Patent Publication No. 2014-102020 (paragraph [0034], FIGS. 1 and 3)

However, in the other pipe fixing method described above, there is a problem that the strength of the belt is weakened by the through hole formed in the belt and the belt is easily torn.

An object of the present invention is to provide a pipe positioning tool capable of suppressing tearing of a belt for suspending a pipe.

The invention of claim 1 made to achieve the above object is used for a heat exchanger buried in the ground, and is attached to a belt suspended in the vertical direction to provide a pipe for circulating a heat medium inside. A pipe positioning tool for positioning in a spiral extending in the vertical direction at a predetermined pitch, and a pair of plate portions arranged so as to sandwich the belt and a pair of plate portions arranged on the side of the belt. A hinge portion for rotatably connecting a pair of plate portions and a plate holding portion for holding the pair of plate portions while sandwiching the belt are provided, and the belt of the pair of plate portions is provided with the belt portion. A locking projection for locking to the belt is provided on the surface to which the belt is addressed, and a pipe holder for holding the pipe is attached to the pair of plates, or the pipe holder is integrally attached. It is a pipe positioning tool provided.

According to a second aspect of the present invention, in the pipe positioning tool according to the first aspect, the plate holding portion includes a locking hole formed in one of the pair of plate portions and the pair of plates. It is provided with a locking claw that is projected from the other plate portion of the portion and is locked to the locking hole.

According to a third aspect of the present invention, in the pipe positioning tool according to the first or second aspect, the pair of plate portions is provided at an end portion opposite to the hinge portion via a hinge portion different from the hinge portion. The plate holding portion is composed of a first plate portion on which the end overlapping pieces are rotatably attached and a second plate portion on which the end overlapping pieces are overlapped on the end portion on the opposite side of the hinge portion. Is provided with an end locking hole and an end locking claw provided on the portion of the second plate portion that overlaps with the end overlapping piece and the end overlapping piece to lock each other.

The invention of claim 4 is the pipe positioning tool according to claim 3, wherein the second plate portion is configured so that the pipe holder can be attached to a surface facing the opposite side of the first plate portion, and the end thereof. The overlapping pieces are overlapped on the surface of the second plate portion facing the opposite side of the first plate portion, and sandwiched between the pipe holder attached to the second plate portion and the second plate portion. By doing so, it is held in a state of being stacked on the second plate portion.

[Invention of claim 1]
In the invention of claim 1, since the pipe positioning tool can be fixed to the belt by sandwiching the belt between a pair of plate portions and locking the locking projections to the belt, a case where a binding band or the like is directly attached to the belt. The through hole is not formed in the belt as in the above, and the tearing of the belt is suppressed. Moreover, since the pair of plate portions are rotatably connected by the hinge portion, the pipe positioning tool can be easily fixed to an arbitrary position on the belt by rotating the pair of plate portions. It becomes. Moreover, in the present invention, since the pair of plate portions are held in a state where the belt is sandwiched by the plate holding portion, the pipe positioning tool is prevented from coming off the belt.

[Invention of claim 2]
According to the invention of claim 2, when the belt is sandwiched between the pair of plate portions, the locking hole and the locking claw are locked to hold the pair of plate portions in the state where the belt is sandwiched. Is possible.

[Invention of claims 3 and 4]
According to the third aspect of the present invention, the end locking hole and the end portion are formed by stacking the end overlapping pieces rotatably attached to the first plate portion via another hinge portion on the second plate portion. By locking the locking claws, it is possible to hold the first plate portion and the second plate portion in a state where the belt is sandwiched.

Here, as in the invention of claim 4, the second plate portion is configured so that the pipe holder can be attached to the surface facing the side opposite to the first plate portion, and the end overlapping piece is in the second plate portion. If the structure is such that the pipe holder is overlapped on the surface facing the opposite side of the first plate portion and sandwiched between the pipe holder and the second plate portion, the end locking claw and the end locking hole are formed by the pipe holder. The lock is hard to come off.

Perspective view for explaining the installation situation of the heat exchanger according to one Embodiment of this invention. Perspective view of the pipe positioning tool from the front side Perspective view of the pipe positioning tool from the back side (A) Perspective view of the pipe positioning tool in the folded state, (B) Perspective view of the pipe positioning tool in the folded state. Partial fracture perspective view of pipe positioning tool Partially broken perspective view of the bent pipe positioning tool Partially broken perspective view of the folded pipe positioning tool (A) side sectional view, (B) AA sectional view of the pipe positioning tool before the pipe holder is attached. (A) side sectional view, (B) BB sectional view of the pipe positioning tool after the pipe holder is attached. (A) Perspective view of the pipe positioning tool attached to the belt in the unfolded state, (B) Perspective view of the pipe positioning tool in the middle of bending. (A) A perspective view of a pipe positioning tool that sandwiches the belt in a bent state, and (B) a perspective view of a pipe positioning tool that is in a folded state and has a pipe holder attached.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the heat exchanger 90 according to the present embodiment is provided with a pipe 91 for circulating a heat medium inside, and is buried in the ground. Specifically, the heat exchanger 90 includes a pair of belts 92, 92 suspended in the vertical direction, and a weight 93 fixed to the lower end of the pair of belts 92, 92. The pipe 91 is attached to a pair of belts 92, 92 so as to form a spiral extending in the vertical direction. Then, a pair of belts 92 and 92 are hung so that the weight 93 and the pipe 91 fit in the installation hole 95 formed in the ground, and the installation hole 95 is filled so that the heat exchanger 90 is placed in the ground. Will be installed. If necessary, a weight 93 may be added to improve the insertability of the pipe 91 into the installation hole 95.

The pipe positioning tool 10 of the present embodiment is attached to the belt 92 at predetermined intervals. A pipe holder 80 for holding the pipe 91 is detachably attached to the pipe positioning tool 10. As a result, the pipe 91 is positioned with respect to the belt 92 so as to form a spiral shape having a predetermined pitch. Hereinafter, the configuration of the pipe positioning tool 10 will be described in detail.

As shown in FIG. 2, the pipe positioning tool 10 includes a first plate portion 11, a second plate portion 12, and a hinge portion 13 that rotatably connects the first plate portion 11 and the second plate portion 12. , Is equipped. The first plate portion 11 and the second plate portion 12 are formed in a rectangular shape. The hinge portion 13 connects the side portions of the first plate portion 11 and the second plate portion 12 to each other. The pipe positioning tool 10 has a deployed state (state shown in FIG. 2) in which the front side surface 11M1 of the first plate portion 11 and the front side surface 12M1 of the second plate portion 12 are arranged in substantially the same surface, and a first. The back side surface 11M2 of the 1 plate portion 11 (see FIG. 3) and the back side surface 12M2 of the second plate portion 12 are arranged so as to face each other (the state shown in FIG. 4A).

Specifically, the short side of the first plate portion 11 has the same length as the short side of the second plate portion 12. Further, the long side of the first plate portion 11 is slightly longer than the long side of the second plate portion 12. The hinge portion 13 has a strip shape having the same length as the short side of the first plate portion 11, and connects the short side portion 11S of the first plate portion 11 and the short side portion 12S of the second plate portion 12.

More specifically, as shown in FIG. 3, of the pair of short side portions 11S and 11S in the first plate portion 11, the first short side portion 11S1 communicating with the hinge portion 13 is C-chamfered. It has a first inclined surface 11K1 of the first plate portion 11 that is inclined by 45 degrees with respect to the back side surface 11M2 of the first plate portion 11. Similarly, of the pair of short side portions 12S and 12S in the second plate portion 12, the first short side portion 12S1 communicating with the hinge portion 13 is also C-chamfered and is formed on the back side surface 12M2 of the second plate portion 12. It has a first inclined surface 12K1 of the second plate portion 12 which is inclined by 45 degrees. Further, the hinge portion 13 has a shape in which both ends in the width direction are C-chamfered. The hinge portion 13 is provided with respect to the first inclined surface 13K1 of the hinge portion 13 and the first inclined surface 12K1 of the second plate portion 12 which are arranged perpendicularly to the first inclined surface 11K1 of the first plate portion 11 in the deployed state. It has a second inclined surface 13K2 of a hinge portion 13 arranged vertically. Then, the first plate portion 11 is bent with respect to the hinge portion 13 so that the first inclined surface 11K1 of the first plate portion 11 and the first inclined surface 13K1 of the hinge portion 13 meet, and the second plate portion 12 is the second. When the second plate portion 12 is bent with respect to the hinge portion 13 so that the 1 inclined surface 12K1 and the second inclined surface 13K2 of the hinge portion 13 meet, the pipe positioning tool 10 changes from the unfolded state to the bent state.

As shown in FIG. 2, of the pair of short side portions 11S and 11S of the first plate portion 11, the second short side portion 11S2 of the first plate portion 11 arranged on the side away from the hinge portion 13 , The terminal hinge portion 14 is rotatably connected. The end hinge portion 14 has a strip shape having the same length as the short side of the first plate portion 11. Further, the width of the terminal hinge portion 14 is substantially the same as the width of the hinge portion 13.

Specifically, as shown in FIG. 3, the second short side portion 11S2 of the first plate portion 11 is C-chamfered and is inclined by 45 degrees with respect to the back side surface 11M2 of the first plate portion 11. It has a second inclined surface 11K2 of the plate portion 11. The end hinge portion 14 has a C-chamfered shape at the end edge on the first plate portion 11 side. The end hinge portion 14 has an inclined surface 14K of the end hinge portion 14 arranged perpendicular to the second inclined surface 11K2 of the first plate portion 11 in the deployed state. Then, as shown in the change from FIG. 4A to FIG. 4B, when the pipe positioning tool 10 is in the bent state, the second inclined surface 11K2 of the first plate portion 11 and the end hinge portion 14 When the end hinge portion 14 is bent with respect to the first plate portion 11 so that the inclined surfaces 14K meet, the end hinge portion 14 stands up from the first plate portion 11. At this time, the end hinge portion 14 is arranged to face the second short side portion 12S2 on the side of the pair of short side portions 12S, 12S of the second plate portion 12 that is distant from the hinge portion 13.

The end overlapping piece 15 projects from the end edge of the end hinge portion 14 opposite to the first plate portion 11. Specifically, the end overlapping piece 15 projects so as to stand up from the back side surface 14M of the end hinge portion 14 (see FIG. 3). Then, as shown in FIG. 4B, when the end hinge portion 14 is bent with respect to the first plate portion 11 when the pipe positioning tool 10 is in the bent state, the end overlapping piece 15 becomes the second plate. The pipe positioning tool 10 is placed on the front side surface 12M1 of the portion 12 and is in a folded state.

More specifically, as shown in FIG. 4A, the front side surface 12M1 of the second plate portion 12 is provided with a terminal recess 16 in which a portion on the side away from the hinge portion 13 is depressed. Then, as shown in FIG. 4 (B), the end overlapping piece 15 is received by the end recess 16, so that the outer surface of the end overlapping piece 15 becomes the front side surface 12M1 of the second plate portion 12 in the folded state. Arranged almost flush with each other.

The end recess 16 is formed in a U-shape that is recessed so that the intermediate portion of the second plate portion 12 in the short side direction is separated from the hinge portion 13 when viewed from the front side of the second plate portion 12. An overhanging portion 17 is formed in a portion of the terminal recess 16 surrounded by a U-shape. The overhanging portion 17 is received by the notch portion 15K provided in the end overlapping piece 15.

As shown in FIG. 2, a connecting protrusion 40 is provided at the center of the front side surface 12M1 of the second plate portion 12. The connecting protrusion 40 includes a large-diameter portion 41 forming a portion on the base end side from the intermediate position in the protruding direction, and a small-diameter portion 42 forming a portion on the tip end side from the intermediate position. The first overhanging portion 43 projects from the portion near the tip of the large diameter portion 41, and the second overhanging portion 44 projects from the portion near the tip of the small diameter portion 42. Both the first overhanging portion 43 and the second overhanging portion 44 are formed linearly when viewed from the protruding direction of the connecting protrusion 40. Further, the surface of the first overhanging portion 43 facing the front side surface 12M1 of the second plate portion 12 is an inclined surface 43K that is inclined so that the distance from the front side surface 12M1 becomes wider as the distance from the large diameter portion 41 increases. ing.

As shown in FIGS. 8 (A) and 9 (A), a pipe holder 80 is attached to the connecting protrusion 40. The pipe holding portion 80 is composed of a grip portion 81 for holding the pipe 91 and a pedestal portion 82 for supporting the grip portion 81, and the pedestal portion 82 is connected to the connecting protrusion 40. Specifically, a horizontal hole 83 is formed in the central portion of the pedestal portion 82 in the vertical direction, and the first support plate 84 and the second support plate 85 that sandwich the horizontal hole 83 in the vertical direction are formed. One insertion hole 84A and a second insertion hole 85A are formed. The cross-sectional shape of the first insertion hole 84A is formed in a straight line corresponding to the first overhanging portion 43 of the connecting protrusion 40, and the cross-sectional shape of the second insertion hole 85A is the second overhanging portion of the connecting protrusion 40. It is formed in a straight line corresponding to 44.

Next, the attachment of the pipe holder 80 will be described. In order to attach the pipe holder 80 to the connecting protrusion 40, first, as shown in FIG. 8A, the connecting protrusion 40 is formed in the first insertion hole 84A and the second insertion hole 85A of the pipe holder 80. Insert. The pipe holder 80 is arranged so that the longitudinal direction of the first insertion hole 84A coincides with the longitudinal direction of the first overhanging portion 43. At this time, the longitudinal direction of the second insertion hole 85A also coincides with the longitudinal direction of the second overhanging portion 44 (see FIG. 8B).

When the connecting protrusion 40 is inserted into the first insertion hole 84A and the second insertion hole 85A of the pipe holder 80 and the second plate portion 12 is abutted against the pedestal portion 82, the second tension of the connecting protrusion 40 is stretched. The protruding portion 44 passes through the second insertion hole 85A, and the pedestal portion 82 is arranged between the second overhanging portion 44 and the second plate portion 12. At this time, the large diameter portion 41 of the connecting protrusion 40 is received by the first insertion hole 84A, and the small diameter portion 42 is received by the second insertion hole 85A. The first overhanging portion 43 is arranged in the lateral hole 83.

The pipe holder 80 is then rotated 90 degrees around the connecting protrusion 40. Then, as shown in FIG. 9A, the first support plate 84 of the pedestal portion 82 is sandwiched between the inclined surface 43K of the first overhanging portion 43 and the front side surface 12M1 of the second plate portion 12. Then, the pipe holder 80 is fixed to the second plate portion 12. At this time, as shown in FIG. 9B, the longitudinal direction of the second overhanging portion 44 and the longitudinal direction of the second insertion hole 85A are substantially orthogonal to each other. Further, the longitudinal direction of the first overhanging portion 43 and the longitudinal direction of the first insertion hole 84A are also substantially orthogonal to each other. As a result, the connecting protrusion 40 is prevented from coming off from the first insertion hole 84A and the second insertion hole 85A. Further, in the present embodiment, the inclined surface 43K is provided in the portion of the first overhanging portion 43 that sandwiches the first support plate 84 of the pipe holder 80 with the front side surface 12M1 of the second plate portion 12. Therefore, it is possible to give a width to the thickness of the first support plate 84 that can be sandwiched between the first overhanging portion 43 and the front side surface 12M1 of the second plate 12, and the pipe holder that can be attached. It is possible to have a width in the size range of 80.

As shown in FIGS. 3 and 6, the first plate portion 11 and the second plate portion 12 have a plurality of locking holes 22 and a plurality of locking claws 23 that lock each other in a bent state. It is provided. The plurality of locking holes 22 are arranged on the short side portions 11S and 11S of the first plate portion 11, and the plurality of locking claws 23 are arranged on the second plate portion 12. Specifically, each short side portion 12S of the second plate portion 12 is provided with a bank portion 12D protruding so as to stand up from the back side surface 12M2 of the second plate portion 12, and is engaged with the bank portion 12D. The stop claw 23 is projected. The height of the bank portion 12D is almost the same as the thickness of the belt 92. The locking claw 23 is composed of an upright wall 24 that stands up from the bank portion 12D and a projecting piece portion 25 that protrudes from the tip end portion of the upright wall portion 24 toward the center side in the long side direction of the second plate portion 12. .. As shown in FIG. 6, the projecting piece portion 25 of the locking claw 23 is locked with the stepped portion 22D formed on the inner surface of the locking hole 22. The second plate portion 12 has a through hole 26 for die cutting at a position overlapping the projecting piece portion 25 in the thickness direction of the second plate portion 12.

As shown in FIGS. 6 and 7, the end overlapping piece 15 and the second plate portion 12 are provided with an end locking hole 31 and an end locking claw 33 that lock each other in the folded state. Has been done. The end locking hole 31 penetrates the end overlapping piece 15, and the end locking claw 33 is a second short side portion 12S2 of the second plate portion 12 (specifically, a bank at the second short side portion 12S2). It projects so as to stand up from the front side surface 12M1 of the portion 12D (the portion where the portion 12D (see FIG. 3) is formed). The end locking claw 33 has a right-angled triangular shape having an inclined surface 33A facing the outside of the second plate portion 12 and a vertical surface 33B facing the inside of the second plate portion 12, and the vertical surface 33B is an end locking hole. Locks with the edge of 31. More specifically, the end locking hole 31 is provided at the base end portion of the end overlapping piece 15, and is provided at the end portion of the end hinge portion 14 on the side away from the first plate portion 11. It communicates with the end notch 32. Further, the end locking claw 33 is projected from the end edge portion of the second short side portion 12S2 of the second plate portion 12 at a portion communicating with the intermediate wall 27 sandwiched between the through holes 26 and 26. Therefore, the end locking claw 33 is less susceptible to the positional deviation due to the bending of the second short side portion 12S2.

As shown in FIG. 3, a plurality of locking projections 21 are provided on each of the back side surface 11M2 of the first plate portion 11 and the back side surface 12M2 of the second plate portion 12. The locking protrusion 21 is formed in a conical shape, and the height of the locking protrusion 21 is equal to half the distance between the back side surface 11M2 of the first plate portion 11 and the back side surface 12M2 of the second plate portion 12 in the bent state. Is also slightly larger. Here, the distance between the back side surface 11M2 of the first plate portion 11 and the back side surface 12M2 of the second plate portion 12 in the bent state is substantially the same as the height of the bank portion 12D described above. That is, the height of the locking projection 21 is slightly larger than half of the height of the bank portion 12D. As shown in FIGS. 4B and 5, the plurality of locking projections 21 provided on the first plate portion 11 and the plurality of locking projections 21 provided on the second plate portion 12 are When in the bent state, they are arranged so that they are offset from each other. As a result, interference between the locking projection 21 of the first plate portion 11 and the locking projection 21 of the second plate portion 12 in the bent state is avoided.

The structure of the pipe positioning tool 10 has been described above. Next, attachment of the pipe positioning tool 10 to the belt 92 will be described. To attach the pipe positioning tool 10 to the belt 92, first, as shown in FIG. 10A, the pipe positioning tool 10 is in the expanded state, and the back side surface 11M2 of the first plate portion 11 is addressed to the belt 92. The belt.

Next, as shown in the change of FIG. 10A → FIG. 10B → FIG. 11A, the second plate portion 12 is bent with respect to the first plate portion 11, and the pipe positioning tool 10 is bent. Put it in a state. Then, the belt 92 is sandwiched between the back side surface 11M2 of the first plate portion 11 and the back side surface 12M2 of the second plate portion 12, and the locking projections 21 protruding from the back side surfaces 11M2 and 12M2 bite into both sides of the belt 92. .. As a result, the pipe positioning tool 10 is positioned with respect to the belt 92. In the present embodiment, as described above, the height of the bank portion 12D is almost the same as the thickness of the belt 92, and the height of the locking projection 21 is less than half of the height of the bank portion 12D. Is also slightly larger, so that the locking projection 21 bites into the belt 92 and locks it slightly deeper than half of the thickness of the belt 92. Further, by inserting the plurality of locking claws 23 into the plurality of locking holes 22 in the process of bending, the locking claws 23 and the locking holes 22 are locked, and the pipe positioning tool 10 is held in the bent state. Will be done. As a result, the locking projection 21 is prevented from coming off the belt 92. At this time, the belt 92 is sandwiched between the bank portions 12D and 12D of the second plate portion 12, and the movement of the belt 92 in the width direction is restricted.

Next, as shown in FIG. 11B, the end overlapping piece 15 is superposed on the front side surface 12M1 of the second plate portion 12, and the pedestal portion 82 of the pipe holder 80 is attached to the connecting protrusion 40. With the above, the attachment of the pipe positioning tool 10 to the belt 92 is completed.

Here, when the end overlapping piece 15 is overlapped with the second plate portion 12, the end locking claw 33 provided on the second plate portion 12 is provided with the end locking hole 31 provided on the end overlapping piece 15. The end locking claw 33 and the end locking hole 31 are locked. As a result, the second plate portion 12 is prevented from being separated from the first plate portion 11, and the bent state is more easily maintained. Further, when the pedestal portion 82 is attached to the connecting protrusion 40, the end overlapping piece 15 is sandwiched between the second plate portion 12 and the pedestal portion 82. As a result, the end overlapping piece 15 is prevented from being separated from the second plate portion 12, and the end locking claw 33 is less likely to come off from the end locking hole 31.

This concludes the description of the configuration of the pipe positioning tool 10 and the heat exchanger 90 of the present embodiment. In the present embodiment, the first plate portion 11 and the second plate portion 12 correspond to the "pair of plate portions" of the present invention, and the back side surface 11M2 of the first plate portion 11 and the back side of the second plate portion 12 The surface 12M2 corresponds to the "surface addressed to the belt" of the present invention. Further, the locking hole 22, the locking claw 23, the end locking hole 31, and the end locking claw 33 constitute the "plate holding portion" of the present invention. Further, the first plate portion 11 corresponds to the "one plate portion" of the present invention, and the second plate portion 12 corresponds to the "other plate portion" of the present invention. The end hinge portion 14 corresponds to "another hinge portion" of the present invention.

Next, the effects of the pipe positioning tool 10 and the heat exchanger 90 of the present embodiment will be described. In the present embodiment, the pipe positioning tool 10 can be fixed to the belt 92 by sandwiching the belt 92 between the first plate portion 11 and the second plate portion 12 and locking the locking projection 21 to the belt 92. As a result, through holes are not formed in the belt 92 as in the case where the binding band or the like is directly attached to the belt 92, and the belt 92 is suppressed from being torn. Moreover, since the first plate portion 11 and the second plate portion 12 are rotatably connected by the hinge portion 13, the pipe positioning is performed by rotating the second plate portion 12 with respect to the first plate portion 11. The tool 10 can be easily fixed to an arbitrary position on the belt 92.

Further, in the present embodiment, when the belt 92 is sandwiched between the first plate portion 11 and the second plate portion 12, the locking hole 22 and the locking claw 23 are locked. As a result, the first plate portion 11 and the second plate portion 12 are held in a state where the belt 92 is sandwiched (bent state), and the pipe positioning tool 10 is prevented from coming off the belt 92.

Further, in the present embodiment, the end overlapping piece 15 rotatably attached to the first plate portion 11 via the end hinge portion 14 is overlapped with the second plate portion 12 to form the end locking hole 31. The end locking claw 33 is locked. Therefore, the second plate portion 12 is hard to separate from the first plate portion 11, and the locking claw 23 is hard to come off from the locking hole 22. As a result, the first plate portion 11 and the second plate portion 12 are more easily held in a state where the belt 92 is sandwiched between them. Moreover, the pipe holder 80 can be attached to the front side surface 12M1 of the second plate portion 12, and the end overlapping piece 15 is superposed on the front side surface 12M1 of the second plate portion 12 to attach the pipe holder 80 (details). Since it is sandwiched between the pedestal portion 82) and the second plate portion 12, the pipe holder 80 makes it difficult for the end locking claw 33 and the end locking hole 31 to be disengaged.

[Other Embodiments]
The present invention is not limited to the above embodiments, and for example, embodiments as described below are also included in the technical scope of the present invention, and various other than the following, as long as they do not deviate from the gist. It can be changed and implemented.

(1) The pipe positioning tool 10 of the above embodiment has a structure in which the pipe holder 80 can be attached and detached, but the pipe holder 80 may be integrally provided.

(2) In the above embodiment, instead of providing the connecting protrusion 40 in the pipe positioning tool 10, the pipe positioning tool 10 is provided with a through hole for passing a binding band or the like, and the binding band or the like is passed through the through hole. The pipe 91 may be fixed by the above. With this configuration as well, through holes are not formed in the belt 92 itself, and tearing of the belt 92 is suppressed.

(3) In the above embodiment, the terminal hinge portion 14 and the end overlapping piece 15 may not be provided. Even in this case, since the locking hole 22 and the locking claw 23 are provided as the "plate holding portion" of the present invention, the pipe positioning tool 10 is provided by locking the locking hole 22 and the locking claw 23. Can be kept in a bent state. Therefore, the belt 92 can be held in a state of being sandwiched between the first plate portion 11 and the second plate portion 12.

(4) In the above embodiment, the "plate holding portion" of the present invention has two locking holes 22 in each of the first short side portion 11S1 and the second short side portion 11S2 of the first plate portion 11 (a total of four locations). ), The first short side portion 12S1 and the second short side portion 12S2 of the second plate portion 12 are each provided with two locking claws 23 (four locations in total), but one location each (two locations in total). Alternatively, each of the three locations (six locations in total) may be provided. Further, in the above embodiment, the number of locking holes 22 and the number of locking claws 23 are the short side portions 11S and 11S of the first plate portion 11 and the short side portions 12S and 12S of the second plate portion 12, respectively. It was the same, but it may be different. As an example in this case, there are one locking hole 22 in the first short side portion 11S1 of the first plate portion 11 and a plurality of locking holes 22 in the second short side portion 11S2 of the first plate portion 12 (for example, two or three). ), And one locking claw 23 is provided on the first short side portion 12S1 of the second plate portion 12, and a plurality of locking claws 23 are provided on the second short side portion 12S2 of the second plate portion 12. The configuration to be provided can be mentioned.

(5) In the above embodiment, the locking hole 22 and the locking claw 23 may not be provided. Even in this case, since the end locking hole 31 and the end locking claw 33 as the "plate holding portion" of the present invention are provided, the end locking hole 31 and the end locking claw 33 are provided. The pipe positioning tool 10 can be held in the folded state by locking the pipe positioning tool 10. Therefore, it is possible to hold the first plate portion 11 and the second plate portion 12 in a state where the belt 92 is sandwiched.

(6) In the above embodiment, all the locking holes 22 are provided in the first plate portion 11 and all the locking claws 23 are provided in the second plate portion 12, but all the locking holes 22 are provided. It may be provided in the second plate portion 12, and all the locking claws 23 may be provided in the first plate portion 11. Further, the locking holes 22 may be provided in the first plate portion 11 and the second plate portion 12, and the locking claws 23 may be provided in the first plate portion 11 and the second plate portion 12.

(7) In the above embodiment, bolt insertion holes are formed in the first plate portion 11 and the second plate portion 12, and the first plate portion 11 and the second plate portion 12 are folded with bolts and nuts penetrating the bolt insertion holes. It may be held in a curved state. Further, a bolt insertion hole is formed in either one of the first plate portion 11 and the second plate portion 12, and a screw hole is formed in the other, and the bolt inserted in the bolt insertion hole is screwed into the screw hole. The first plate portion 11 and the second plate portion 12 may be held in a bent state. In the former case, bolts and nuts correspond to the "plate holding portion" of the present invention, and in the latter case, bolts and screw holes correspond to the "plate holding portion" of the present invention.

(8) In the above embodiment, the protrusion 21 is formed in a conical shape, but the protrusion 21 may have a truncated cone shape such as a triangular pyramid or a quadrangular pyramid, a truncated cone shape, a truncated cone shape, a wedge shape, a hemispherical shape, or the like. Any shape may be used as long as the belt can be locked.

10 Pipe positioning tool 11 1st plate part 12 2nd plate part 13 Hinge part 15 End overlapping piece 22 Locking hole 23 Locking claw 31 End locking hole 33 End locking claw 80 Pipe holder 90 Heat exchanger 91 pipe 92 belt

Claims (4)

Used for heat exchangers buried underground,
A pipe positioning tool that is attached to a belt suspended in the vertical direction and is used to position a pipe that circulates a heat medium inside in a spiral shape that extends in the vertical direction at a predetermined pitch.
A pair of plate portions arranged so as to sandwich the belt and
A hinge portion arranged on the side of the belt and rotatably connecting the pair of plate portions,
A plate holding portion for holding the pair of plate portions while sandwiching the belt is provided.
A locking projection for locking to the belt is provided on the surface of the pair of plate portions that is addressed to the belt.
A pipe positioning tool to which a pipe holder for holding the pipe is attached to the pair of plates, or the pipe holder is integrally provided. In the pipe positioning tool according to claim 1,
The plate holding portion is
A locking hole formed in one of the pair of plate portions and
It is provided with a locking claw that is projected from the other plate portion of the pair of plate portions and is locked to the locking hole. In the pipe positioning tool according to claim 1 or 2.
The pair of plate portions includes a first plate portion in which end overlapping pieces are rotatably attached to an end portion opposite to the hinge portion via a hinge portion different from the hinge portion, and the hinge. It is composed of a second plate portion on which the end overlapping pieces are overlapped on the end portion on the opposite side of the portion.
The plate holding portion includes an end locking hole and an end locking claw provided on the portion of the second plate portion that overlaps with the end overlapping piece and the end overlapping piece to lock each other. There is. In the pipe positioning tool according to claim 3,
The second plate portion is configured so that the pipe holder can be attached to a surface facing the opposite side of the first plate portion.
The end overlapping piece is overlapped on the surface of the second plate portion facing the opposite side of the first plate portion, and is between the pipe holder attached to the second plate portion and the second plate portion. It is held in a state of being overlapped with the second plate portion by being sandwiched between the two plates.

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