JP2003278985A - Socket corotation preventive instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a socket corotation preventive instrument having structure comprising a plug screwed to the socket screwed to a water extraction pipe so that the plug can be removed by one operator. <P>SOLUTION: In the socket corotation preventive instrument T of a water extraction device comprising a pipe upper end section of the water extraction pipe for extracting the water in a pipe buried in the ground erected in a cylindrical protector 10 arranged and supported on the ground surface and the plug 7 screwed in the upper end opening of the cylindrical socket 6 screwed in the upper end of the pipe 1, first pressing sections 13 to be pressed against the socket 6 are provided on a plurality of places in the external peripheral face 6a of the socket 6, and second pressing sections 14 to be pressed against the protector 10 are provided in the internal peripheral face 12a of the protector 10 in the periphery of the socket 6, and a pressing mechanism 15 is provided to press the first pressing sections 13 against the external peripheral face 6a of the socket 6 and the second pressing sections 14 against the internal peripheral face 12a of the protector 10. <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 tool for preventing the turning of a socket for equipping a stopper installed at the upper end of a water extraction pipe, and more particularly, to a tubular shape embedded in the ground near the ground surface. For the water extraction device, in which the pipe upper end of the water extraction pipe for taking out the water in the pipe is erected upright inside the protector of the pipe, and the stopper is screwed into the upper end opening of the cylindrical socket screwed to the pipe upper end. The present invention relates to a socket turning prevention tool.

[0002]

2. Description of the Related Art Generally, as shown in FIG.
Is composed of a water extractor A buried in the ground and a water extracting means B arranged near the ground surface. For more information,
The water extractor A is composed of a T-shaped joint pipe with a water extraction pipe, etc., in which a portion of the gas pipe 1 where water is collected is cut at two front and rear positions to partially remove the gas pipe 1, and instead is connected and joined in communication. The water extracting means B is composed of a water extractor 2, and the water extracting means B is a water extractor pipe 3 standing upright from the water extractor 2 to the ground surface, and a pipe upper end portion 5 of a water extractor pipe 4 arranged in the ground near the ground surface. And a protector 10 arranged so as to surround it. A plug 7 is provided via a socket 6 on a pipe upper end portion 5 extending to near the ground surface by adding a water extraction pipe 4 or the like. Reference numeral 8 is a lid of the protector 10.

By providing the water extraction device C as described above, the water collected in the gas pipe 1 at any time is removed by removing the plug 7 and connecting the water extraction pump 9 during the construction of the gas pipe. I was able to pull out.

[0004]

In the water extraction device C, when water is extracted, the plug 7 is first removed. However, when the screwed screw 7 is loosened, the socket 6 is often used. I often went around.
That is, since the socket 6 is also screwed to the upper end portion 5 of the pipe, the plug 7 and the socket 6 are strongly screwed together,
When the plug 7 is turned in the removing direction due to rusting or the like, the socket 6 turns with respect to the pipe upper end portion 5 accordingly.

Therefore, by using a tool or the like, one operator is in charge of the rotation stopping operation of the socket 6 and the other operator is in charge of the rotation operation of the stopper 7, which requires two persons' work. However, there is still room for improvement in terms of poor operability that one cannot work alone. An object of the present invention is to provide a socket rotation preventive tool suitable for a water extraction device or the like so that the operation of removing the stopper can be performed by one person while following the structure in which the stopper is screwed into the socket screwed to the water extraction pipe. It is in the point of providing.

[0006]

The structure of claim 1 is as shown in FIG.
As illustrated in FIG. 3, the tube 3 that is substantially coaxial with the axis of the tubular inner wall 12a is arranged inside the enclosing member 10 having the tubular inner wall 12a, and is screwed to the upper end portion 5 of the tube 3. In a socket follow-up preventive tool in which a plug 7 is screwed into an upper end opening of a cylindrical socket 6, a first pressure contact portion 13 for the socket 6 is provided at a plurality of locations on an outer peripheral surface 6a of the socket 6, and the periphery of the socket 6 is provided. On the cylindrical inner wall 12a in
A second pressure contact portion 14 is provided for the enclosing member 10, the first pressure contact portion 13 is provided on the socket outer peripheral surface 6a, and the second pressure contact portion 14 is provided.
It is characterized in that a press-contacting mechanism 15 is provided for pressing each of them into contact with the cylindrical inner wall 12a.

In order to take out the water in the pipe 1 buried in the ground in the cylindrical protector 10 which is arranged and supported near the ground surface, as shown in FIGS. The upper ends 5 of the water extraction pipes 3 and 4 of the
In a socket entrainment prevention tool for a water extraction device, which is configured by screwing a plug 7 into an upper end opening of a cylindrical socket 6 screwed to
The first pressure contact portion 13 for the socket 6 is provided at a plurality of locations on the outer peripheral surface 6a of the socket 6, and the second pressure contact portion 14 for the protector 10 is provided on the inner peripheral surface 12a of the protector around the socket 6 to provide the first pressure contact portion. 13 to the socket outer peripheral surface 6a and the second pressure contact portion 14
It is characterized in that a press-contact mechanism 15 is provided for pressing the protector inner peripheral surface 12a into contact with each other.

The structure of claim 3 is as shown in FIG.
The structure according to claim 1 or 2, wherein the first pressure contact portion 13 and the second pressure contact portion 13
At least one of the press contact portions 14 is subjected to a treatment for increasing frictional force.

As mentioned above, the reference numerals are given for the convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Gas pipe 1 buried in the ground in Figure 4
A water extractor C including a water extractor A and a water extractor B installed near the ground surface is shown. Since the water extractor A has already been described in the section “Prior Art”, detailed description thereof will be omitted here.

As shown in FIGS. 3 and 4, the water extracting means B for the road is constructed by laying a flat, substantially donut-shaped concrete lower protector 11 on the slag stone s in the soil. A cylindrical upper protector 12 made of cast iron is mounted on the recess 11a on the upper surface with a mortar layer interposed therebetween. It goes without saying that the ground is excavated prior to the construction, and backfilling is performed after the upper protector 12 is installed.

Inside the protector 10, a pipe upper end 5 which is an upper part of a water extraction pipe 4 connected to a water extraction pipe 3 standing upright from the water removing device 2 is arranged. And "conventional technology"
As described above, the socket 6 is screwed to the outside of the upper end 5 of the tube, and the plug 7 is screwed to the inside of the upper portion of the socket 6 (see FIG. 2). That is, the water removal pipes 3 and 4 can be freely opened and closed by inserting and removing the plug 7 into and from the socket 6. Then, when removing the plug 7, the socket entrainment preventive tool T described below is used.

As shown in FIGS. 1 to 3, the socket entrainment preventive tool T is provided with first pressure contact portions 13 for the socket 6 at three positions on the outer peripheral surface 6a of the socket 6, and a protector around the socket 6. On the inner peripheral surface of 10, i.e., the inner peripheral surface 12a of the upper protector 12, a second pressure contact portion 14 for the protector 10 is provided, and the first pressure contact portion 13 is provided on the socket outer peripheral surface 6a and the second pressure contact portion 14
Is provided with a press-contacting mechanism 15 for press-contacting the inner peripheral surface 12a of the upper protector 12, respectively.

Specifically, in the cylindrical frame 16 having an inner diameter slightly larger than the outer diameter of the socket 6, three sets of screw mechanisms 17 are inserted at 120 degrees apart from each other in plan view to prevent entrainment. A tool T is configured. The screw mechanism 17 includes a base end bolt 18 fitted to the barrel frame 16 so as to be relatively movable,
A turnbuckle 19 screwed to the base bolt 18
And a tip bolt 20 screwed into the turnbuckle 19. The top surface 21a of the head portion 21 of the tip bolt 20 is the inner peripheral surface 12a of the upper protector 12.
So that the inner diameter side ends of the base end bolts 18 can respectively come into contact with the socket outer peripheral surface 6a.

The tip bolt 20 is set to a reverse screw,
When the turnbuckle 19 is rotated to one side, the base end bolt 18 and the tip bolt 20 can be brought closer to each other, and when it is rotated to the other side, the base bolt 18 and the tip bolt 20 can be moved away from each other. Base bolt 1
A rubber material 22 is integrally provided on the inner diameter side end of 8 by fusion bonding or the like [an example of processing for increasing frictional force (mechanism 22)] so that the friction coefficient with the socket outer peripheral surface 6a becomes high. . In this structure, the base bolt 18 is the first
The tip bolt 20 is attached to the pressure contact portion 13 and the second pressure contact portion 1
4 and the turnbuckle 19 corresponds to the press contact mechanism 15.

The work of mounting the turning prevention tool T is performed as follows. First, the turnbuckle 19 is operated so that the length from the rubber material 22 to the top surface 21a becomes substantially the same as the length slightly shorter than the distance between the socket outer peripheral surface 6a and the upper protector inner peripheral surface 12a. It is adjusted, and in that state, the tube frame 16 is inserted and held in a position surrounding the socket 6, and the turnbuckle 19 is rotated and the tip bolt 20 is relatively rotated. The rubber material 22 is lightly pressed against the socket outer peripheral surface 6a, and the top surface 21a is lightly pressed against the upper protector inner peripheral surface 12a.

Both bolts 18 and 20 are attached by the above-mentioned pressure welding.
In a state in which the bolts 18 and 20 are prevented from rotating, the turnbuckle 19 is rotated in a direction in which the bolts 18 and 20 move away from each other, and is interposed between the socket outer peripheral surface 6a and the upper protector inner peripheral surface 12a. The pressure contact mechanism 15 extends and is strongly stretched, and is locked to the protector 10 so that the socket 6 does not rotate. Then, by rotating the stopper 7, the socket 6 can be removed from the socket 6 without being rotated.

[Other Embodiments] << 1 >> The press contact mechanism 15 includes a turnbuckle 19
In addition to (screw feed mechanism), hydraulic and electric cylinders,
Various things such as springs and solenoids are possible. As the process for increasing the frictional force (the mechanism 22 for increasing the frictional force), the inner peripheral surface 12a of the protector 10 is subjected to a knurling process or a graining process (an unevenness or a jagged surface is formed) to prevent slipping. Alternatively, it is conceivable to equip a material or member with a high friction coefficient.

<< 2 >> For example, inside the enclosure member having a cylindrical inner wall similar to the inner wall surface 12a of the upper protector, a water pipe that is coaxial or substantially coaxial with the axial center of the protector 10 (axial center of the inner peripheral surface 12a). A socket (an example of a pipe) is arranged, and in a socket pipe turning prevention tool for a water pipe, which is formed by screwing a stopper into an upper end opening of a cylindrical socket screwed to an upper end portion of the water pipe,
A plurality of first pressure contact portions for the socket are provided at a plurality of locations on the outer peripheral surface of the socket, and a second pressure contact portion for the enclosing member is provided on the cylindrical inner wall around the socket, and the first pressure contact portion is provided on the outer peripheral surface of the socket, and It is also possible to use a socket follow-up preventive tool (having the same structure as the socket follow-up preventive tool T shown in FIG. 1) provided with a press-contact mechanism that presses the second press-contact portion against the cylindrical inner wall.

[0020]

As described above, according to the socket entrainment preventive tool of the present invention, the pressure contact mechanism is operated so that the first pressure contact portion is on the outer peripheral surface of the socket and the second pressure contact portion is on the inner peripheral surface of the protector. Since the socket can be fixed to the protector (or the enclosing member) by press-contacting the surface (or the cylindrical inner wall), that is, the socket can be locked so as not to rotate, and the plug in that state. By rotating, the plug screwed into the socket can be removed without the socket being rotated. That is, the protector (or enclosure member) that is an indispensable constituent member for creating the space portion for arranging the upper end portion of the pipe by the turning prevention tool.
Could be used as a fixing part for locking the socket.

As a result, in the water extraction device or the like, the socket is locked by the anti-rotation device and then the plug is rotated and operated.
It was possible to realize a convenient thing that can be operated by one person to remove the stopper without turning the socket around by a rational means using the protector (or the enclosure member) which is an existing component.

If at least one of the first pressure contact portion and the second pressure contact portion is treated to increase the frictional force, the pressure contact force between the outer peripheral surface of the socket and the first pressure contact portion, or the second pressure contact portion,
Since the pressure contact force between the pressure contact portion and the protector inner peripheral surface (or the cylindrical inner wall) increases, the function of locking the socket so that it does not rotate, that is, the socket locking action described above is strengthened, and the above effect is further enhanced. We were able to provide what we could certainly obtain.

[Brief description of drawings]

FIG. 1 is a plan view showing the structure of a turning prevention tool.

FIG. 2 is a side view showing a turning prevention tool in a state of being attached to a socket.

FIG. 3 is a plan view showing a mounting state of the turning prevention tool in the protector.

FIG. 4 is a side view showing a water extraction device laid on a gas pipe.

[Explanation of symbols]

1 gas pipe 3 Water extraction pipe (tube) 5 Pipe upper end 6 socket 6a Socket outer peripheral surface 7 stopper 10 Protector (enclosure member) 12a protector inner peripheral surface (cylindrical inner wall) 13 1st pressure contact part 14 Second pressure contact part 15 Pressure welding mechanism

Claims (3)

[Claims] 1. A tube, which is substantially coaxial with an axis of the tubular inner wall, is arranged inside an enclosure member having a tubular inner wall, and the tubular socket is screwed to an upper end of the tubular socket. A socket rotation prevention tool formed by screwing a plug, wherein a plurality of first pressure contact portions for the socket are provided at a plurality of locations on an outer peripheral surface of the socket, and the cylindrical inner wall around the socket has the enclosure. A socket co-rotation preventive tool comprising: a second pressure contact portion for a member; and a pressure contact mechanism for contacting the first pressure contact portion with the outer peripheral surface of the socket and the second pressure contact portion with the cylindrical inner wall, respectively. 2. A pipe protector, which is arranged and supported near the surface of the earth, has a pipe upper end portion of a water discharge pipe for taking out water in a pipe buried in the ground, which is vertically arranged. A socket entrainment prevention tool for a water extraction device, which comprises a stopper plugged into an upper end opening of a cylindrical socket screwed onto a socket, wherein a plurality of first press contact portions with respect to the socket are provided at a plurality of locations on an outer peripheral surface of the socket. The protector inner peripheral surface around the socket is provided with a second pressure contact portion for the protector, the first pressure contact portion is on the socket outer peripheral surface, and the second pressure contact portion is the protector inner peripheral surface. A socket entrainment prevention tool that is equipped with a pressure contact mechanism that makes pressure contact with each other. 3. The socket follow-up preventive tool according to claim 1, wherein at least one of the first pressure contact portion and the second pressure contact portion is subjected to a treatment for increasing a frictional force.