JP2019090189A - Timbering pipe support and length adjustment method - Google Patents

Abstract

To provide a timbering pipe support and a length adjustment method capable of remarkably reducing labor burden on a worker, and capable of safely performing work by preventing an accident during work.SOLUTION: The timbering pipe support comprises a support main body 20 and a temporary fixing device 60. The temporary fixing device 60 is provided with a jig main body 61 detachably attached to the side surface of a screw part 31 of a waist pipe 30 and a temporary fixing pin 65 provided so as to protrude straight on a part of a mounting surface 62 of the jig main body 61, and an engaging projection 63 is provided on the mounting surface 62 of the jig main body 61 in a protruding manner.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a support pipe support used in construction, construction work, etc. and a method of adjusting the length.

A common pipe support mainly comprises a lumbar tube and an insertion tube slidably inserted in the lumbar tube, and adjusts the overall length (total height) according to the size of the site.
The plug-in tube has a plurality of pin holes along its axial direction. The waist tube has a screw portion capable of screwing the adjustment ring on the upper outer periphery thereof, and has an elongated hole through which the support pin can be inserted along the axial direction of the screw portion (Patent Document 1).
The general pipe support is adjusted in full length in two steps in a state of being vertically oriented.
The first step is an adjustment operation to adjust the rough overall length (full height) of the pipe support in the pitch unit of the pin hole, slide the insertion pipe relative to the lumbar pipe, adjust the long hole of the adjustment ring and the insertion pipe Align the pin holes of any height and insert the support pins. In this adjustment operation, it is necessary for the operator to hold and hold the insertion pipe with one hand so that the insertion pipe does not descend until the support pin is inserted.
The second step is an operation to finely adjust the total length of the pipe support. By rotating the adjustment ring screwed to the waist tube, the support position of the support pin in contact with the adjustment ring is lifted to the waist tube Finely adjust the projection length of the insertion tube.

A pipe support has also been proposed that can temporarily fix the entire length of the pipe support during length adjustment using a temporary stop that is pivotally supported by a part of a waist tube (Patent Document 2).
This pipe support is structured such that when replacing the pin hole by the support pin, the temporary claws can be inserted across the two pipes to temporarily fix the overlapping portions of the both pipes.

Japanese Utility Model Publication No. 58-191244 Japanese Utility Model Application Publication No. 5-69249

Conventional pipe support length adjustment techniques have the following problems.
<1> From the sliding operation of the insertion pipe to the end of the insertion operation of the support pin, the operator must hold and hold the insertion pipe with one hand so as not to lower the insertion pipe.
In particular, since the insertion pipe has a weight of approximately 10 kg, it takes much time and labor to adjust the length of the pipe support.
<2> As described above, since it takes a lot of labor for the work of one pipe support, in a large site where hundreds of pipe supports are installed, the length adjustment work of the pipe support takes a lot of time and It takes a lot of effort and it becomes a harsh task.
<3> If the hand holding the insertion pipe loosens during the length adjustment of the pipe support, or if the hand slips with anti-rust oil applied to the surface of the insertion pipe, the insertion pipe will drop vigorously Workers are very dangerous due to serious injuries.
<4> The pipe support described in Patent Document 2 is formed by attaching a temporary hook to a side surface of a waist tube so as to freely swing, or by adding a pin hole for inserting the temporary hook to a side surface of the waist tube. Not only does it have to be installed, the processing cost of the pipe support is increased, but the strength of the pipe support is lowered.

  The present invention has been made in view of the above points, and the object of the present invention is to significantly reduce the labor burden on the worker and to prevent the accident during the work and to perform the work safely. To provide a working pipe support and a method of adjusting the length.

The present invention is a support pipe support equipped with a temporary fixing device and a length adjustment method.
The supporting pipe supports are assumed to be the waist tube, the insertion tube slidably inserted into the waist tube, the adjustment ring screwed to the screw portion of the waist tube, the screw portion of the waist tube and the insertion tube It comprises a support main body provided with a support pin which penetrates and connects the overlapping part of the tube, and a temporary fixing device.
The temporary fixing device is provided with a jig body that can be attached to and removed from the side surface of the threaded portion of the waist tube, and a portion of the mounting surface of the jig body so as to project right next to it. And an engaging protrusion which can be engaged with the screw thread of the screw portion is protruded from the mounting surface of the jig body.
The temporary fixing device can attach / detach the temporary fixing device to / from the screw portion by utilizing the elastic force of the jig body or by using the adsorption force of the magnet.
The method of adjusting the length of support pipe support uses the support pipe support described above, and before making the support pin penetrate the threaded portion of the waist tube and the overlapping portion of the insertion tube, in pitch unit of pin hole Attach the temporary fixing device to the screw part of the waist tube whose length has been adjusted, temporarily fix the screw part of the waist tube and the overlapping part of the insertion tube in a non-slidable manner, and hold the temporary fixing device temporarily after that The support pin is pushed into the threaded portion of the lumbar tube and the overlapping portion of the insertion tube to release the temporary locking device from the threaded portion. Both ends of the support pin penetrated to the threaded portion of the lumbar tube and the overlapping portion of the insertion tube are supported by the adjusting ring to slidably connect the threaded portion of the lumbar tube and the overlapping portion of the insertion tube.
Finally, the adjustment ring is turned to finely adjust the total length of the pipe support.

The present invention has at least one of the following effects.
<1> Since the entire length of the support body can be temporarily fixed by using a temporary fixing device separate from the support body, it is not necessary for the operator to hold and hold the insertion tube by hand as in the prior art.
Therefore, it is possible to significantly reduce the labor burden and time of the worker, and to prevent the accident during the work and to perform the work safely.
<2> By using the pressing force of the support pin, the removal operation of the temporary fixing device and the insertion operation of the support pin can be performed in parallel, so switching from temporary fixing of the support body to permanent fixing is smooth. Not only can it be done, but also man-hours can be reduced.
<3> Since the temporary fixing device is separate from the support main body, it is not necessary to perform any additional processing on the support main body, and a reduction in strength of the support main body can be avoided.
<4> The temporary fixing device has a simple structure, so the manufacturing cost of the temporary fixing device can be low, and the removed temporary fixing device can be used any number of times.

Overall perspective view of support pipe support according to the present invention A perspective view of the threaded portion of the lumbar tube and the overlapping portion of the insertion tube Explanatory drawing of the temporary fixing structure between the screw part of the waist tube and the insertion tube temporarily fixed using the temporary fixing device FIG. 8A is a cross-sectional view of a pipe support for explaining the attaching / detaching means of the temporary fixing device to the screw of the lumbar tube, wherein (A) is a model diagram of the attaching / detaching means for holding the jig body in the screw of the lumbar tube; ) Is a model diagram of the attachment / detachment means using the adsorption force of the magnet It is explanatory drawing of the engagement protrusion formed in the mounting surface of a temporary fixing apparatus, (A) is a front view of the temporary fixing apparatus which formed the engagement protrusion continuous with the mounting surface, (B) is intermittent (not Front view of the temporary fixing device in which the engagement protrusion is formed on Explanation of how to adjust the length of pipe support

  The present invention will be described in detail below with reference to the drawings.

<1> Outline of Support Pipe Support Referring to FIGS. 1 and 2, the support pipe support 10 (hereinafter, “pipe support 10”) according to the present invention has a support main body 20 whose length can be adjusted. And a temporary fixing device 60 for temporarily fixing the length of the support main body 20.

<2> Support Body The support body 20 is a known pipe support made of a metal material such as, for example, stainless steel, aluminum, or aluminum alloy.
In the present embodiment, the support main body 20 is inserted into the waist tube 30 having the screw portion 31 at the upper outer periphery and the insertion tube 40 slidably inserted into the waist tube 30 and having a plurality of pin holes 41 along the axial direction. And an adjustment ring 50 screwed to the threaded portion 31 of the waist tube 30, and a support pin 53 penetratingly connected to the waist tube 30 and the overlapping portion of the insertion tube 40.
A pair of elongated holes 32 are opened in the axial direction opposite to each other on the side surface of the threaded portion 31 of the waist tube 30. The support pin 53 can be inserted into the long hole 32 and the pin hole 41.

The adjusting ring 50 is a nut member in which an internal thread is formed on the inner peripheral surface, and the adjusting ring 50 and the support pin 53 constitute a screw jack.
The adjustment ring 50 has a handle 51 pivotally supported on the outer periphery thereof, and by adjusting the handle 50 by rotating the adjustment ring 50 by raising the handle 51 horizontally, adjustment of the projection length of the insertion tube 40 relative to the waist tube 30 is possible.

<3> Temporary stop device The temporary stop device 60 is a stopper for temporarily fixing the projection length of the insertion tube 40 with respect to the waist tube 30 without using the support pin 53 when adjusting the length of the pipe support 10 It is a jig and is detachably attached to the threaded portion 31 of the waist tube 30.
Referring to the temporary fixing device 60 illustrated in FIG. 2, the temporary fixing device 60 horizontally projects on the inner peripheral surface of the jig main body 61 and the inner peripheral surface of the jig main body 61 which can be attached to and detached from the screw portion 31 of the waist tube 30. And a temporary retaining pin 65.

<3.1> Jig main body The jig main body 61 has a strip-like mounting surface 62 curved inward with a curvature that can be put in contact with the screw portion 31 of the waist tube 30. As shown in FIG. 3 in an enlarged manner, one or a plurality of engaging projections 63 which can be engaged with the screw thread 31 a of the screw portion 31 are provided on the mounting surface 62 in a protruding manner.
The jig main body 61 is attachable to and detachable from the threaded portion 31 of the waist tube 30 and has a plate thickness capable of abutting on the upper surface of the adjustment ring 50.
In this example, the planar shape of the jig body 61 is C-shaped. However, the planar shape of the jig body 61 is not limited. Good.

<3.2> Attachment / detachment means of the temporary fixing device As attachment / detachment means of the temporary attachment device 60, for example, means for holding the screw portion 31 by using elastic force of the jig main body 61, attachment / detachment using the adsorption force of magnet Means or a combination of these plural means can be applied.

  FIG. 4A shows a model of the attaching / detaching means for elastically holding the jig body 61 in the screw portion 31. The circumferential length of the mounting surface 62 of the jig body 61 is the circumference of the screw portion 31. The form is shown to be slightly longer than a half of In the present embodiment, the jig body 61 can be elastically deformed and can be attached to and detached from the screw portion 31 by inserting or removing the jig body 61 from the side with respect to the screw portion 31.

  FIG. 4B shows a model of the attaching / detaching means utilizing the adsorption force of the magnet, in which the magnet (permanent magnet) 66 is incorporated in the jig main body 61 made of a magnetic material, or the jig main body 61 itself is The magnetization process shows the form. In this embodiment, the jig body 61 can be attached by suction to the screw portion 31 using a magnetic force, and the jig body 61 can be removed from the screw portion 31 by applying a separating force exceeding the adsorption force by the magnetic force.

<3.3> Engagement protrusion The engagement protrusion 63 is a protrusion which can mesh with the screw thread 31 a of the screw portion 31 and can transmit a vertical load.
The engagement protrusion 63 is engaged with the screw thread of the screw portion 31 in order to obtain a reaction force from the screw portion 31 of the waist tube 30 and support the support pin 53.

Referring to the engaging projection 63 illustrated in FIG. 5, the same drawing (A) shows a form in which a screw-like continuous engaging projection 63 is integrally formed on the curved mounting surface 62, and the drawing (B) shows a curved form. The form which formed the engagement protrusion 63 intermittently on the mounting surface 62 is shown.
The point is that a protrusion capable of meshing with the screw thread 31 a of the screw portion 31 may be formed on a part of the mounting surface 62 when the jig body 61 is mounted on the screw portion 31 of the waist tube 30.

<3.4> Temporary Fixing Pin A temporary fixing pin 65 is integrally provided on a part of the mounting surface 62 of the jig body 61.
The temporary fixing pin 65 is a connecting pin for temporarily connecting the two parts of the screw part 31 of the superposed waist tube 30 and the insertion tube 40.

Protrusive Length of <3.5> Temporary Fixing Pin In this example, the temporary fixing pin 65 has a length capable of inserting one of the screw portion 31 of the waist tube 30 and the overlapping portion of the insertion tube 40. The total length of the temporary locking pin 65 may be a dimension beyond the diameter of the threaded portion 31 of the waist tube 30.

<3.6> Forming Position of Temporary Fixing Pin The forming position of the temporary fixing pin 65 directed in the height direction of the mounting surface 62 is such that the lowermost circumferential surface of the temporary fixing pin 65 is flush with the lower surface of the jig main body 61. To fit the lowermost surface of the mounting surface 62.
Furthermore, the formation position of the temporary fixing pin 65 directed in the circumferential direction of the mounting surface 62 is not limited to the central position of the mounting surface 62, and may be slightly offset from the center of the mounting surface 62 to the left and right.

[How to adjust the length of pipe support]
Next, a method of adjusting the length of the pipe support 10 will be described.

<1> Temporary Fixing by Temporary Fixing Device With respect to the waist tube 30 for the purpose of adjusting the rough overall length (full height) of the support main body 20 in pitch units of the pin holes 41 formed on the circumferential surface of the insertion tube 40 After sliding the insertion tube 40 and adjusting its length, the temporary fixing device 60 is attached to the screw portion 31 of the waist tube 30 so that the space between the screw portion 31 of the waist tube 30 and the insertion tube 40 can not slide temporarily. Stop.
The temporary fixing work by the temporary fixing device 60 is performed in a state where the support main body 20 is laid horizontally, and thereafter, the pipe support 10 is vertically oriented and arranged at a predetermined support position.

The temporary fixing operation of the support main body 20 will be described in detail. The temporary fixing device 60 is mounted on the side surface of the screw portion 31 of the waist tube 30 and the engaging projection 63 is engaged with the screw portion 31 The temporary fixing pin 65 is inserted across the long hole 32 and the pin hole 41 of the insertion tube 40.
As the engagement protrusion 63 meshes with the screw portion 31, the space between the temporary fixing device 60 and the screw portion 31 of the waist tube 30 is axially slidably connected in the axial direction. By inserting the temporary fixing pin 65 across the long hole 32 of the screw portion 31 and the pin hole 41 of the insertion tube 40, the waist tube 30 and the insertion tube 40 are axially non-slidably connected in the axial direction. Ru.

Even when the support main body 20 is raised vertically with the temporary fixing device 60 attached, the total length of the support main body 20 is such that the temporary fixing device 60 restricts the slide movement between the waist tube 30 and the insertion tube 40 It does not change.
That is, the sliding movement between the waist tube 30 and the insertion tube 40 can be restricted only by the temporary fixing device 60 without supporting the lower end of the temporary fixing device 60 with the adjustment ring 50.
By setting the support main body 20 vertically, the weight of the insertion pipe 40 acts on the insertion pipe 40, but the load acting on the insertion pipe 40 is transmitted to the insertion pipe 40 through the temporary stop device 60, and the final Is supported by the entire support body 20.
Therefore, when the length adjustment of the first step of the support main body 20 is performed, it is not necessary for the worker to hold and hold the insertion tube 40 by hand as in the prior art, so that the labor burden on the worker can be reduced. In addition, the plug-in tube 40 does not slide down suddenly, and it is possible to prevent injuries to workers.

  In addition, when the pipe support 10 is small in size and the weight of the insertion tube 40 is light, it is also possible to mount the temporary fastening device 60 with the support main body 20 oriented vertically.

<2> Rotation Operation of Adjustment Ring Next, the adjustment ring 50 screwed on the threaded portion 31 of the waist tube 30 is moved upward until the upper surface of the adjustment ring 50 abuts against the lower surface of the jig body 61 of the temporary fastening device 60 Turn it towards you.
Since the weight of the insertion tube 40 is not loaded on the adjusting ring 50, the adjusting ring 50 can be raised in a short time with a small rotational power.
At this time, it is preferable that the adjustment ring 50 be slightly raised and the temporary fixing pin 25 of the temporary fixing device 60 inserted into the pin hole 41 be floated.

<3> Pushing of Support Pin and Removal of Temporary Fixing Device Referring to FIG. 6, the temporary locking pin 65 inserted into the long hole 32 of the screw portion 31 of the waist tube 30 and the pin hole 41 of the insertion tube 40 The support pin 53 is pushed in from the other side in the insertion direction.
The both ends of the support pin 53 are pushed until they are supported by the upper surface of the adjustment ring 50.
The temporary fixing pin 65 is pushed out of the pipe by strongly pushing the support pin 53, and the mounting surface 62 of the jig main body 61 is detached from the screw portion 31 with the backward movement of the temporary fixing pin 65. It can be removed from the part 31.
Since both ends of the support pin 53 replaced with the temporary retaining pin 65 are supported by the upper surface of the adjusting ring 50, the support pin 53 never falls.
Since the removal of the temporary fixing pin 65 and the insertion of the support pin 53 proceed in parallel, it is possible not only to smoothly switch the temporary fixing of the support body 20 to the permanent fixing, but also to reduce the number of operation steps.
After switching to the fixed position, the weight of the insertion tube 40 is supported by the entire support body 20.

For example, although it is conceivable to insert the support pin 53 after completely removing the temporary fixing device 60, this method not only makes it difficult to pull out the temporary fixing device 60 alone under a large load. There is a risk that the insertion tube 40 may fall into the waist tube 30 immediately after removing the temporary fastening device 60.
In the present invention, since the temporary fixing device 60 is removed by using the pressing force of the support pin 53, the temporary fixing device 60 can be easily removed, and the temporary fixing pin 65 and the support pin 53 cooperate with each other. Because it regulates the slide, the two problems described above can be solved simultaneously.

Thus, the support pin 53 can be switched from the temporarily fixed state between the both pipes 30 and 40 by the temporary fixing device 60 by the simple operation of pushing in the support pin 53, so that the support pin 53 can be permanently fixed. Even when inserting the support pin 53 into the main body 20, there is no need for the operator to hold and hold the insertion tube 40 with one hand as in the conventional length adjustment method, and the pressing operation of the support pin 53 in a safe environment And the temporary fixing device 60 can be removed.
The removed temporary stop device 60 is stored and reused.

<4> Fine Adjustment of Length As in the conventional case, the adjustment ring 50 screwed to the screw portion 31 of the waist tube 30 is pivoted in the upward direction, and the insertion tube is mounted together with the support pin 53 mounted on the adjustment ring 50 Lift up 40 and finely adjust the total length of the pipe support 10.

<5> Withdrawal of support When removing support, the pipe ring 10 is adjusted by rotating the adjustment ring 50 in the direction opposite to that during jackup to shorten the total length of the pipe support 10 as in the conventional case. Remove 10

10 ... pipe support 20 ... support main body 30 ... waist tube 31 ... screw part 32 ... long hole 40 ... insertion tube 41 ... pin hole 50 ... adjustment ring 51 ... handle 53 ... support pin 60 ... tacking device 61 ... jig main body 62 ... mounting surface 63 ... engaging Protrusions 65 ··· Temporary pin 66 ··· Magnet

Claims (6)

A waist tube having a screw portion on its outer periphery and having an elongated hole in the axial direction in the screw portion, an insertion tube slidably inserted into the waist tube and having a plurality of pin holes along the axial direction, and the waist tube A support body having an adjustment ring screwed to the threaded portion of the sleeve and a support pin connected through the overlapping portion of the waist tube and the insertion tube; and the support pin comprising the threaded portion of the waist tube and the insertion tube A support pipe support that is detachably attached to the threaded portion of the waist tube before passing through the overlapping portion and has a temporary fixing device for temporarily fixing the threaded portion of the waist tube and the overlapping portion of the insertion tube in a non-slidable manner And
The temporary fixing device is attachable to and detachable from the side surface of the threaded portion of the waist tube, and can be in contact with the end face of the adjustment ring.
The jig main body has a temporary fixing pin projecting straightly on a part of the mounting surface of the jig body and capable of being inserted across the long hole of the waist tube and the pin hole of the insertion tube.
The mounting surface of the jig body is characterized in that a single or a plurality of engaging projections which can be engaged with the screw thread of the screw portion are protruded.
Support pipe support.   The support pipe support according to claim 1, wherein the temporary fixing device is attached to and detached from the screw portion using the elasticity of the jig body.   The support pipe support according to claim 1 or 2, characterized in that the temporary fixing device is attached to and detached from the screw portion using the adsorption force of a magnet.   The engaging protrusion which can mesh with the screw thread of the said screw part, and can transmit a perpendicular load is continuously formed in the mounting surface of a jig | tool main body, It is characterized by the above-mentioned. Support pipe support described in Section.   The engagement protrusion which can mesh with the screw thread of the said screw part, and can transmit a perpendicular load is intermittently formed in the mounting surface of a jig | tool main body, It is characterized by the above-mentioned. Support pipe support described in Section. A method for adjusting the length of a support pipe support, using the support pipe support according to any one of claims 1 to 5, and finely operating the entire length of the support body by turning the adjustment ring. And
Before inserting the support pin into the threaded portion of the waist tube and the overlapping portion of the insertion tube, attach the tacking device to the threaded portion of the waist tube whose length was adjusted in the pitch unit of the pin hole, Temporarily fasten non-slidable parts of the part and the insertion tube,
While temporarily holding the threaded portion of the lumbar tube and the overlapping portion of the insertion tube with the temporary fixing device, the support pin is pushed into the overlapping portion of the lumbar tube and the inserting tube from the other side of the insertion direction of the temporary retaining pin , The temporary fixing device is removed from the threaded portion, and both ends of the support pin penetrated through the threaded portion of the waist tube and the overlapping portion of the insertion tube are supported by the adjusting ring to make the threaded portion of the waist tube and the insertion tube Characterized in that the polymerization part is connected non-slidably,
How to adjust the length of support pipe support.

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