JP2003293438A - Pipe suspender - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe suspender for laying a pipe with a precise gradient in piping work for a sewerage pipe, and simplifying backfilling work after laying the pipe. <P>SOLUTION: A pipe fitting plate 2f as a part of a pipe holder has a substantially semispherical fitting groove 21f conformable to the diameter of a pipe, and locking means 2g, 2h of a pipe holding member at two places. One 2g of the locking means stores a part of a folded part of a string-like pipe holding member 2i, and has a storing part 21g having a U-shaped section, which is fixed to the pipe fitting plate 2f. The other of the locking means has a winding part 21h and locking parts 22h, 23h for winding the string-like pipe holding member 2i and locking the same. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe suspension device used in the work of laying a pipe such as a sewer pipe in a groove formed by excavating the ground.

[0002]

2. Description of the Related Art Generally, in construction work for laying sewer pipes,
It is required to lay with a precise slope. Therefore, in the past, after installing excavation in the shape of a gate at a predetermined interval on a road surface that crossed an excavated ditch at a specified interval using a surveying instrument, etc. It requires a process to stretch the tension thread (water thread) according to the above.

After the above work, a plate or the like is laid on the lower part of the sewer pipe in order to make the distance between the uppermost part of the sewer pipe inserted into the groove and the tensioning thread constant using a rod of a predetermined length. After doing the adjustment work, the sewer pipe was fixed and the earth and sand were backfilled.

However, recently, a method of using a laser sighting device and precisely setting the gradient of a pipe to be laid based on the emitted laser beam has also become popular.

Further, Japanese Patent Laid-Open No. 9-41471 discloses that
An invention relating to a pipe position adjusting and fixing device is described. As shown in FIG. 5, this pipe position adjusting and fixing device is configured such that an up-and-down shaft 23 that moves up and down by a handle 22 for up-and-down movement is screwed onto an upper beam portion 21 of a main body on which a leveler 20 is mounted, and a support that horizontally moves. The portion 24 is installed, and the telescopic legs 27 that are vertically extended and retracted by the vertical telescopic handles 26 and 26 are fitted and inserted into the lower portions of the support legs 25 and 25.
A pipe fixing body 30 having a belt adjuster 29 that winds up the pipe belt 28 to tighten the pipe is described.

[0006]

However, in the above-mentioned pipe position adjusting and fixing device, the length of the telescopic leg 27 is set to the leveler 20.
It is necessary to adjust while watching. Also, the support legs 25, 2
It is also necessary to level the installation surface of 5 accurately. Furthermore, when using the laser sighting device and the pipe position adjusting and fixing device, it is necessary to fix the target irradiated with the laser beam to the vicinity of one end inside the pipe, and the target fixing member as a separate member. It is necessary to provide. Moreover, since a pipe such as a sewer pipe is a long member that is normally connected in units of 4 m, it is necessary to consider the case where it is bent by its own weight. Therefore, it is necessary to adjust the position of the pipe at the intermediate position, but when the above-described pipe position adjusting and fixing device is used, the target must be fixed at the intermediate position inside the pipe, which is very difficult.
Further, it is necessary to position and fix the pipe on the pipe position adjusting and fixing device and to backfill the earth and sand, and then to pull out the support legs 25, 25. At that time, the backfilled earth and sand collapse and the pipe deviates from the reference. Careful work is required so that nothing happens.

Therefore, the applicant of the present invention filed Japanese Patent Application No. 2002-15.
The pipe suspension device described in No. 845 was developed. As shown in FIG. 6, the present invention is a pipe suspension device 1 used in the work of laying a sewer pipe or the like between earth retaining panels or sheet piles installed on both walls of a groove formed by excavating the ground. The pipe suspension device 1 includes a pipe holder portion 2 for holding a peripheral wall of a pipe, a suspension device main body 3 located above the pipe holder portion 2, the suspension device main body 3 and the pipe holder portion. 2, a clamp portion 4 connecting the two, an extendable support rod 5a extending from the suspension device main body 3 in a direction to push the earth retaining panel or the sheet pile, and a pressing piece 5b fixed to the tip of the support rod 5a. And a bracing part 6 provided with a jack 5 formed by.

According to the present invention, the above problems have been almost solved. However, in the removal work of the pipe suspension device 1 performed after backfilling the earth and sand, the pipe holder portion 2 that holds the peripheral wall of the pipe must be expanded and removed, and the pipe holder portion 2 is pressed by the earth and sand from above. Then, the pulling out work was not easy.

In view of the above points, the present invention is a pipe suspending device capable of laying a pipe with a precise gradient in the work of laying a pipe such as a sewer pipe and simplifying the backfill work after the laying of the pipe. The purpose is to provide.

[0010]

The invention according to claim 1 is a pipe suspension used in the work of laying a sewer pipe or the like between earth retaining panels or sheet piles installed on both walls of a groove formed by excavating the ground. A lowering device, wherein the pipe suspending device includes a pipe holder part for sandwiching a peripheral wall of a pipe, a suspending device body located above the pipe holder part, the suspending device body and the pipe holder part. And a clamp part for connecting the elastic member, a stretchable support rod extending from the main body of the suspension device in a direction of pressing the soil retaining panel or the sheet pile, and a jack having a pressing piece fixed to the tip of the support rod. And a pipe fitting plate, a string-shaped pipe holding member, and locking means for the pipe holding member.

According to a second aspect of the present invention, in the pipe fitting plate of the pipe holder part, the fitting means mounting portion of the pipe holding member provided on the upper portion and the string-shaped pipe holding member formed near the mounting portion. And the turn-back part where
The pipe holding member has a fitting groove of a substantially semicircle that matches the pipe diameter, and the locking means of the pipe holding member accommodates a part of the folded portion of the string-shaped pipe holding member, and It is characterized in that it has a housing portion having a U-shaped cross section for fixing.

According to a third aspect of the present invention, the pipe fitting plate of the pipe holder portion has a fitting groove having a substantially semicircular shape that matches the diameter of the pipe, and the pipe holding member is provided at an upper portion of the pipe fitting plate. Stopping means is installed, and the locking means is characterized by having a winding portion and a locking portion for winding and locking the string-shaped pipe holding member.

According to a fourth aspect of the present invention, the pipe fitting plate of the pipe holder portion has a fitting groove of a substantially semicircular shape that matches the pipe diameter, and locking means for the pipe holding member is installed at the upper two places. One of the locking means has a housing portion having a U-shaped cross section for housing a part of the folded back portion of the string-shaped pipe holding member and fixing it to the pipe fitting plate. The other locking means is characterized by having a winding portion and a locking portion for winding and locking the string-shaped pipe holding member.

According to a fifth aspect of the present invention, in the pipe fitting plate of the pipe holder portion, a hooking portion for hooking a string-shaped pipe holding member at the center of the upper portion and a fitting groove of a substantially semicircle that matches the pipe diameter. And the string-shaped pipe holding member is characterized by having adjustable locking means for locking itself.

The invention of claim 6 is characterized in that the pipe holder portion of the pipe suspension device is attachable to and detachable from the clamp portion.

The invention of claim 7 is characterized in that the fitting groove of the pipe fitting plate is provided with a notch into which a tensioning thread for positioning is inserted.

The invention of claim 8 is characterized in that a target holder for holding a target irradiated with a laser beam emitted from a laser sighting device for positioning is detachably installed in the pipe holder portion. Have.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of a pipe suspension device according to the present invention. The pipe suspension device 1 includes a pipe holder portion 2 that holds a peripheral wall of a pipe 10, and a suspension device body 3 that is located above the pipe holder portion 2.
The suspension unit main body 3 and the pipe holder unit 2 are connected to each other by a clamp unit 4 and a tension unit 6.

The strut 6 is used for the suspension device main body 3
Is composed of a support rod 5a that extends and contracts in the direction of pressing the soil retaining panel (left and right in the drawing), and a jack in which pressing pieces 5b, 5b are fixed to the tip of the support rod 5a. The support rod 5a is composed of an outer cylinder and a telescopic rod inserted into the outer cylinder (not shown), and the pressing piece 5b is fixed to the tip of the telescopic rod. The surface of the telescopic rod is threaded, and the fixed handle 5c is screwed onto the telescopic rod.

Here, the earth retaining panel is one in which two panels are connected to each other by a beam support (not shown) at a predetermined interval and installed at an excavation site to hold the excavation site at a predetermined width. Japanese Patent Application Laid-Open No. 200 which is an application of the present applicant.
No. 0-45283. Needless to say, the present invention can be implemented even in the case of a sheet pile instead of the soil retaining panel.

Below the strut portion 6, a horizontal position adjusting portion 7 is provided. This left-right position adjustment unit 7
Is composed of a threaded left-right adjusting rod 7a, a movable tube 7b screwed to the left-right adjusting rod 7a, and positioning handles 7c and 7c screwed to the adjusting rod 7a. Are arranged parallel to the support rod 5a. Further, the movable pipe 7b is welded to the suspension device main body 3, and the movable pipe 7b moves on the adjusting rod 7a, so that the suspension device main body 3 and the pipe holder portion 2 connected to the suspension pipe main body 3 are shown in the drawing. It can be moved left and right to adjust the left and right position.

Further, the suspension device main body 3 has a hollow cylindrical shape, is provided with a taut nail hole 3b at the uppermost portion, and a vertical adjustment rod 3a having a threaded surface is inserted therein. The positioning handles 3c, 3c are screwed onto the vertical adjusting rod 3a at positions above and below the suspension device body 3. Therefore, the suspension device main body 3 moves on the adjustment rod 3a in the vertical direction, so that the suspension device main body 3
The pipe holder portion 2 connected to is movable in the vertical direction in the drawing so that the position can be adjusted in the vertical direction.

Next, the clamp portion 4 has a connecting portion 4a and fitting plate fixing pins 4b and 4b, and the connecting portion 4a is fixed to one end of the above-mentioned vertical adjusting rod 3a. The pipe fitting plate 2a is detachably attached to the fitting plate fixing pins 4b and 4b. A target holder 9 for holding a target 8 irradiated with a laser beam emitted from a laser sighting device for positioning the clamp part 4 and the pipe fitting plate 2a.
Has a structure that is detachably installed. The target holder 9 has a circular hole 9a formed in the portion where the target 8 is mounted, and has locking claws 9b, 9b, 9b for holding the target 8 around the hole 9a.
A bolt insertion hole (not shown) is formed above the circular hole 9a, and a bolt 9c is inserted into this hole and fastened with a nut to clamp the clamp portion 4 and the pipe fitting plate 2a.
The target holder 9 is fixed at this point. still,
The right and left side surfaces of the target 8 are slid from above the target holder 9 between the locking claws 9b and 9b, and the left and right side surfaces and the bottom surface are held by the three locking claws 9b, 9b and 9b. Since it has a structure, it can be easily attached to and detached from the target holder 9.

FIG. 2 is an explanatory view showing parts constituting the pipe holder portion of the pipe suspension device according to the present invention, and is an embodiment corresponding to claim 2 or 4 of the present application. Reference numeral 2a is a pipe fitting plate, 2b is locking means for the pipe holding member, and 2c is a string-shaped pipe holding member.

The pipe fitting plate 2a has an upper portion 2
Locking means mounting portions 21a, 21a of the pipe holding member provided at a position, and a string-shaped pipe holding member formed at a distance corresponding to the diameter of the pipe held near the mounting portion 21a. Groove 22a in which the
22a and a fitting groove 23a having a substantially semicircular shape that substantially matches the pipe diameter.
And a notch 24a into which a tensioning thread for positioning is inserted
And have.

Further, the locking means 2b of the pipe holding member accommodates a part of the folded portion of the string-shaped pipe holding member and fixes the pipe fitting plate to the pipe fitting plate. The fitting plate 2a has locking means mounting portions 21a, and a coupling portion 22b that couples with the hole of the 21a.

Furthermore, the string-shaped pipe holding member 2c is a phrase that means a long member that is deformable. This string-shaped pipe holding member is not limited to the string as shown in the figure, but is defined here as a word meaning a broad concept including a belt, a chain, and a chain, and the above-mentioned patent claims. It is used in the range.

Grooves 22a, 22a are formed in the portion where the cord-shaped pipe holding member is folded back.
Reference numeral 2a is for preventing the string-shaped pipe holding member from escaping in the left-right direction in the drawing, and it is not always necessary to provide a groove. There is.

FIG. 3 is an explanatory view showing components constituting another pipe holder portion of the pipe suspension device according to the present invention.
It is an embodiment corresponding to claim 5 of the present application. 2d is a pipe fitting plate, and 2e is a string-shaped pipe holding member.

The pipe fitting plate 2d has a hook portion 21d for hooking a string-shaped pipe holding member 2e at the center of the upper portion.
And a fitting groove 22d having a substantially semicircular shape that substantially matches the pipe diameter, and a notch 23d into which a tensioning thread for positioning is inserted.

The string-shaped pipe holding member 2e is defined as a word having a broad concept including a belt, a chain and a chain, as described above, and is an adjustable member for locking itself. It has a stopping means 21e.

FIG. 4 is an explanatory view showing still another pipe holder portion of the pipe suspension device according to the present invention, which is an embodiment corresponding to claim 3 or 4 of the present application. 2f is a pipe fitting plate, and 2g and 2h are pipe holding members 2i.
2i is a string-shaped pipe holding member.

The pipe fitting plate 2f has a fitting groove 21f having a substantially semicircular shape that substantially matches the diameter of the pipe.

Further, one locking means 2 of the pipe holding member
Reference character g accommodates a part of the folded back portion of the string-shaped pipe holding member 2i, and has a storage portion 21g having a U-shaped cross section and fixed to the pipe fitting plate 2f.

The other locking means 2h of the pipe holding member rotates the slotted slot 21h through the string-shaped pipe holding member 2i by the ratchet mechanism, and the string-shaped pipe holding member 2i is inserted into the slot 21h. It is composed of a load clamp machine which is wound and prevents the cord-like pipe holding member 2i from being loosened by the stopper 23h engaging with the groove 22h of the slot.

In the same manner as described above, the string-shaped pipe holding member 2i is a term that means a long member that can be deformed, and is defined as a term that means a broad concept including belts, chains and chains. It is what is done.

The pipe laying method is described in Japanese Patent Application No. 2002-1.
Since the method is the same as the method described in No. 5845, description will be omitted.

Needless to say, various embodiments can be adopted without departing from the spirit of the present invention.

For example, in FIG. 2 of the above-described embodiment, the locking means 2b of the pipe holding member is installed at the upper two places of the pipe fitting plate 2a, but the invention is not limited to this, and the locking is not limited to this. The means 2b may be installed at one place on the upper part, and one end of the string-shaped pipe holding member may be fixed to the pipe fitting plate 2a.

Similarly, in FIG. 4, there are two types of locking means of the pipe holding member, 2g and 2h. However, only the locking means is 2h, and one end of the string-shaped pipe holding member is connected to the pipe fitting plate. It may be configured to be fixed to 2f.

Further, the pipe fitting plates 2a, 2d, 2
f is an approximately semicircular fitting groove 23a, depending on the diameter of the pipe to be constructed,
Since the sizes of 22d and 21f change, the pipe holder part is made detachable from the clamp part, and a plurality of pipe fitting plates corresponding to the pipe diameter are prepared in advance.

[0042]

According to the invention of claim 1, there is provided a pipe suspension device for use in the work of laying a sewer pipe or the like between earth retaining panels or sheet piles installed on both walls of a groove formed by excavating the ground. The pipe suspension device includes a pipe holder portion that holds a peripheral wall of a pipe, a suspension device body located above the pipe holder portion, and a clamp that connects the suspension device body and the pipe holder portion. And a stretchable support rod extending from the suspension device main body in a direction to push the soil retaining panel or the sheet pile, and a bulge portion provided with a jack having a pressing piece fixed to the tip of the support rod. The pipe holder is characterized by including a pipe fitting plate, a string-shaped pipe holding member, and locking means for the pipe holding member, so that pipe laying work is easy. And the floor It is possible to simplify the work backfilling after.

According to a second aspect of the present invention, the pipe fitting plate of the pipe holder portion is provided with an engaging portion mounting portion of the pipe holding member provided on the upper portion and a string-shaped pipe holding member formed in the vicinity of the mounting portion. And the turn-back part where
The pipe holding member has a fitting groove of a substantially semicircle that matches the pipe diameter, and the locking means of the pipe holding member accommodates a part of the folded portion of the string-shaped pipe holding member, and Since it is characterized in that it has a housing portion having a U-shaped cross section for fixing, the string-shaped pipe holding member can be easily attached and detached by the locking means. The removal work of the device can be facilitated.

According to a third aspect of the present invention, the pipe fitting plate of the pipe holder portion has a fitting groove having a substantially semicircular shape that matches the pipe diameter, and the upper portion of the pipe fitting plate is engaged with the pipe holding member. A stopping means is installed, and the locking means is characterized by having a winding portion and a locking portion for winding and locking the string-shaped pipe holding member. , The string-shaped pipe holding member can be brought into close contact with the pipe by the locking means, and the pipe can be laid with a precise gradient because it does not loosen, and the removal work of the pipe suspension device can be facilitated. .

According to a fifth aspect of the present invention, in the pipe fitting plate of the pipe holder portion, a hooking portion for hooking a string-like pipe holding member at the center of the upper portion, and a fitting groove of a substantially semicircle that matches the pipe diameter. And the string-shaped pipe holding member is characterized by having adjustable locking means for locking itself.
It is possible to facilitate the work of fixing the pipe and the work of removing the pipe suspension device.

The invention of claim 8 is characterized in that a target holder for holding a target irradiated with a laser beam emitted from a laser sighting device for positioning is detachably installed in the pipe holder portion. Therefore, when the laser sighting device is used, it is convenient that the position where the target is fixed does not need to be positioned at another position.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a pipe suspension device according to the present invention.

FIG. 2 is an explanatory view showing an example of a pipe holder portion of a pipe suspension device.

FIG. 3 is an explanatory view showing another example of the pipe holder portion of the pipe suspension device.

FIG. 4 is an explanatory view showing another example of the pipe holder portion of the pipe suspension device.

FIG. 5 is an explanatory view showing a conventional pipe position adjusting and fixing device.

FIG. 6 is an explanatory view showing a pipe suspension device according to Japanese Patent Application No. 2002-15845.

[Explanation of symbols]

1 Pipe suspension device 2 Pipe holder 3 Suspension device body 4 Clamp part 5 jacks 5a Support rod 5b pressing piece 6 Struts 7 Left and right position adjustment section 8 targets 9 Target holder

Claims (8)

[Claims] 1. A pipe suspension device for use in the work of laying a sewer pipe or the like between soil retaining panels or sheet piles installed on both walls of a groove formed by excavating the ground. Is a pipe holder part that holds the peripheral wall of the pipe, a suspension device main body located above the pipe holder part, a clamp part that connects the suspension device main body and the pipe holder part, and the suspension device. The pipe holder has a stretchable support rod extending from the main body in a direction of pressing the soil retaining panel or the sheet pile, and a bulging portion provided with a jack having a pressing piece fixed to the tip of the support rod. The portion includes a pipe fitting plate, a string-shaped pipe holding member, and locking means for the pipe holding member. 2. The pipe fitting plate of the pipe holder portion is provided with an engaging portion mounting portion of a pipe holding member provided at an upper portion thereof, and a folded portion at which a string-shaped pipe holding member formed near the attaching portion is folded back. And a fitting groove of a substantially semicircle that matches the pipe diameter, and the locking means of the pipe holding member accommodates a part of the folded portion of the string-shaped pipe holding member, and the pipe fitting The pipe suspension device according to claim 1, further comprising a storage portion having a U-shaped cross section that is fixed to the plate. 3. The pipe fitting plate of the pipe holder portion has a fitting groove of a substantially semicircle that matches the pipe diameter, and a locking means of a pipe holding member is installed on the upper part of the pipe fitting plate. The locking means includes a winding portion and a locking portion for winding and locking the string-shaped pipe holding member. Pipe suspension device. 4. The pipe fitting plate of the pipe holder portion has a fitting groove of a substantially semicircle that matches the diameter of the pipe, and has an upper portion 2
A locking means for the pipe holding member is installed at the location, and one of the locking means accommodates a part of the folded back portion of the string-shaped pipe holding member, and the pipe fitting plate. It has a housing portion having a U-shaped cross section to be fixed to, and the other locking means has a winding portion and a locking portion for winding and locking the string-shaped pipe holding member. The pipe suspension device according to claim 1, wherein the pipe suspension device is a pipe suspension device. 5. The pipe fitting plate of the pipe holder part has a hooking part for hooking a string-shaped pipe holding member at the center of the upper part, and a fitting groove of a substantially semicircle that matches the pipe diameter, The pipe suspending device according to claim 1, wherein the string-shaped pipe holding member has an adjustable locking means for locking itself. 6. The pipe suspension device according to claim 1, wherein the pipe holder portion of the pipe suspension device is attachable to and detachable from the clamp portion. 7. The pipe according to claim 1, wherein the fitting groove of the pipe fitting plate is provided with a notch into which a tensioning thread for positioning is inserted. Hanging device. 8. The pipe holder part is detachably provided with a target holder for holding a target irradiated with a laser beam emitted from a laser sighting device for positioning. 7. The pipe suspension device according to any one of 7.