JP5080138B2 - Water control body installation device - Google Patents

Description

  In the present invention, the outer peripheral surface of the fluid pipe is surrounded by a housing having at least a divided structure, and a tube cutting means is connected to an opening provided with a connecting portion formed in the housing. A water pipe having at least a branch hole constituting a branch hole branched from the fluid pipe and a second hole constituting a flow path of the fluid pipe is formed by opening the water control body by cutting the fluid pipe inside the casing in an uninterrupted state. It is related with the water control body installation apparatus installed in a housing | casing through.

  The conventional water control body installation device is provided with an opening for connecting a pipe cutting means and installing a fluid valve on the upper surface portion of the housing surrounding the outer peripheral surface of the fluid pipe, and on the side surface portion of the housing, An opening for connecting the branch member is provided (for example, see Patent Document 1).

Japanese Utility Model Publication No. 4-29188 (page 3, Fig. 7)

  However, in Patent Document 1, it is necessary to form an opening for installing the water control body and an opening for forming a branch path separate from the opening in the casing. . Moreover, it is necessary to provide a connection part for connecting the pipe cutting means in the opening part, and to provide a connection part for connecting to the branch member in the opening of the other stage, and the processing of the casing is troublesome. Furthermore, for example, when a pipe line adjacent to the left and right sides of the fluid pipe disposed in the common groove is configured and a space for connecting the branch member cannot be secured, the branch pipe is avoided by avoiding the adjacent pipe line. It was necessary to install.

  This invention is made paying attention to such a problem, and it aims at providing the water control body installation apparatus which can make the process effort of a housing | casing easy.

In order to solve the above-described problem, a water control body installation device according to claim 1 of the present invention provides:
The outer peripheral surface of the fluid pipe is surrounded by at least a casing having a divided structure, and a pipe cutting means is connected to an opening provided with a connecting portion formed in the casing. A water control body having at least a branch hole forming a branch path branched from the fluid pipe and a second hole forming a flow path of the fluid pipe is formed through the opening. A water control body installation device installed inside a housing,
The branch hole is located on the opening side ,
The water control body includes a valve housing including at least the branch hole and the second hole, and a valve body provided in the valve housing so as to be able to open and close the branch hole or the second hole. It is characterized by.
According to this feature, the branch path branched from the fluid pipe can be formed through the opening used for connecting the pipe cutting means and installing the water control body, thereby enclosing the fluid pipe. It is not necessary to form a separate opening for forming a branch path in the body, and not only the processing of the housing is facilitated, but also the branch member can be connected using the connecting portion provided in the opening. Moreover, since the water control body has the 2nd hole which comprises the flow path of a fluid pipe | tube, a water control body can be installed in a non-continuous water state. Further, by opening and closing the branch hole located on the opening side by the valve body, the flow of the fluid to the branch path can be controlled, and the second hole located on the cut portion side of the fluid pipe is the valve body. By opening and closing by, the flow of fluid in the fluid pipe can be further controlled.
Furthermore, since the branch hole is closed by the valve body and the branch hole is located on the opening side and the water control body is installed in the housing, the opening of the housing can be closed. The connecting member connected to the opening can be removed later.

The water control body installation device according to claim 2 of the present invention is the water control body installation device according to claim 1,
The opening is characterized by opening upward.
According to this feature, the pipe cutting means or the water control body can be easily approached by dropping downward toward the inside of the casing through the opening that opens upward. In addition, for example, even when there is no space due to other members present on the left and right sides of the fluid pipe, the branch member can be connected to the opening that opens upward.

The water control body installation device according to claim 3 of the present invention is the water control body installation device according to claim 1 or 2 ,
An insertion hole is formed in the casing, and the valve body is provided such that both holes can be opened and closed by rotating an operation shaft that can be inserted into the insertion hole.
According to this feature, since the control shaft can be inserted from the outside of the housing through the insertion hole formed in the housing after the water control body is installed in the housing, the control shaft not including the operation shaft extending in the axial direction is included. It is easy to install the water body inside the housing, and the housing can be miniaturized.

The water control body installation device according to claim 4 of the present invention is the water control body installation device according to claim 3 ,
A sealing material is provided between the inner surface of the housing and the outer surface of the valve housing for watertightly partitioning the holes and the insertion hole.
According to this feature, since the sealing material for watertightly partitioning the branch hole and the second hole and the insertion hole is interposed, when the operating shaft is inserted into the insertion hole, the fluid in the fluid pipe is separated from the branch hole or It is possible to prevent leakage from the second hole through the insertion hole.

  Examples of the present invention will be described below.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1A is a front view showing a housing of a water control body installation device in an embodiment of the present invention, and FIG. It is also a plan view. FIG. 2 is a schematic view showing a situation in which the tube cutting means is connected to the opening of the housing. FIG. 3 is a schematic view showing a situation where the water control body pressing means is connected to the opening of the housing. FIG. 4 is a perspective view of the water control body. Fig.5 (a) is a partial cross section figure of a water control body, (b) is a bottom view like (a). FIG. 6 is a cross-sectional view showing the inside of the housing in which the water control body is installed. FIG. 7 is a partial cross-sectional view showing a housing to which a branch member is connected.

  As shown in FIGS. 1 (a) and 1 (b), an outer peripheral surface of a fluid pipe 1 that constitutes an existing pipe line and in which a fluid flows is formed by a casing 2 having a vertically divided structure that is assembled in a watertight manner. Go. The housing 2 is provided with sleeves 2a and 2a that extend in the axial direction along the outer peripheral surface of the fluid pipe 1, and an opening 2b that has a flange 2c as a connecting portion and opens upward. It consists mainly of a hollow cylindrical member. In addition, an insertion hole 2d and a hole 2e that are opened in the front and rear directions are provided at positions substantially orthogonal to the pipe axis on the peripheral side wall of the housing 2, and the fluid pipe 1 that will be described later is cut and water control as a water control body is performed. When the valve 11 is installed, the insertion hole 2d and the hole 2e are stopped by a water stop plate (not shown). Further, drainage ports 2f and 2f are provided at predetermined positions near the sleeves 2a and 2a on the bottom plate of the housing 2, respectively.

  Further, an annular sealing material 4 is disposed along the circumferential direction between the inner peripheral surface of the casing 2 and the outer peripheral surface of the fluid pipe 1 at the end of each sleeve 2a, 2a, and the sealing material 4 is divided. The watertightness between the housing 2 and the fluid pipe 1 is maintained by being held by the push wheel 3.

  Next, as shown in FIG. 2, the cutting of the fluid pipe 1 will be described. The opening 2b of the housing 2 can be opened and closed, and the water tightness inside the housing 2 is maintained in the closed state. Connect the possible on-off valve 5. Subsequently, a perforation blade 7a having an inner diameter and a height larger than the outer diameter of the fluid pipe 1 and disposed downward on the periphery of the lower end, and having the same central axis as the perforation blade 7a than the perforation blade 7a An inner hollow cylindrical drilling cutter 7 as a pipe cutting means having a center drill 7b disposed downward at a lower position and a hooking piece 7c provided at the front of the center drill 7b is provided inside the body 6. The body 6 is opened and closed so as to be disposed in a space so as to be disposed at a position where the central axis of the piercing cutter 7 is oriented substantially in the vertical direction and intersects the central axis of the fluid pipe 1 in the housing 2 substantially perpendicularly. 5 is connected in a watertight manner above 5.

  Next, the perforating cutter 7 is moved by the stroke mechanism 8 in which the perforating blade 7a moves forward and backward so as to pass through the entire cross section of the fluid pipe 1 while the on-off valve 5 is opened and the perforating cutter 7 is rotated. Move down. By rotating and lowering the piercing cutter 7, the fluid pipe 1 is gradually cut downward from the outer peripheral surface of the upper surface of the fluid pipe 1 at two cut surfaces between the diametrical dimensions of the piercing cutter 7. At a point where 7a is lowered so as to pass through the entire cross section of the fluid pipe 1, the fluid pipe 1 is cut at two cut surfaces, and the pipe piece 1a is connected to the pipe of the fluid pipe 1 between the two cut surfaces. Divided from.

  In the above-described cutting operation of the fluid pipe 1, the fluid pipe 1 is in an indefinite water state. Therefore, the fluid is in the fluid pipe 1. In the cutting operation by the drilling cutter 7, the center drill 7 b is fluid. When the fluid pipe 1 reaches the inside of the fluid pipe 1 from the outer peripheral surface of the top surface of the pipe 1, the fluid inside the fluid pipe 1 leaks out of the pipe and fills the inside of the body 6 that is connected to the inside of the housing 2 and above. Become. However, the fluid leaking from the inside of the fluid pipe 1 does not leak to the outside of the housing 2. Therefore, the cutting operation can be performed while the fluid in the fluid pipe 1 remains in an undisrupted water state. Further, by opening the drain outlets 2f, 2f to the outside of the housing 2, the cutting operation is performed while discharging chips generated when the fluid pipe 1 is cut out to the outside of the housing 2.

  Next, after the cutting operation of the fluid pipe 1, the perforating cutter 7 disposed inside the body 6 and the cut pipe piece 1 a hooked on the hook piece 7 c of the center drill 7 b are placed above the on-off valve 5. Then, the on-off valve 5 is closed, and these are removed from the on-off valve 5 together with the body 6.

  Subsequently, as shown in FIG. 3, the installation of the water control valve 11 will be described. The body 9 having the water control valve 11 disposed therein and connected to the insertion machine 10 is connected to the on-off valve 5 in a watertight manner. After that, the on-off valve 5 is opened, and the water control valve 11 is pressed downward from above by the insertion machine 10 to be installed at a predetermined position inside the housing 2.

  Thus, since the opening 2b is opened upward, the perforation cutter 7 or the water control valve 11 as the pipe cutting means is passed through the opening 2b opened upward. 2 Can be approached easily by lowering down toward the inside.

  As shown in FIGS. 4 and 5, the water control valve 11 will be described. The water control valve 11 includes a branch hole 12a that opens upward, and a valve housing that includes a second hole 12b that opens laterally. 12 and a valve body 13 that can open and close the branch hole 12a and the second hole 12b by rotating around the rotation shaft 13b. The branch hole 12 a constitutes a branch path branched from the fluid pipe 1, and the second hole 12 b constitutes a flow path of the fluid pipe 1. Specifically, the branch hole 12a and the second hole 12b have a circular shape with the same diameter that opens at a relative position of approximately 90 degrees, and are circular with the same diameter as the holes 12a and 12b. The valve body 13 to which the sealing material 14 is attached rotates the operation shaft 21 (see FIG. 6), which will be described later, so that the valve body 12 has a range of approximately 90 degrees through the rotation shaft 13b. The two holes 12a and 12b rotate freely, and the sealing material 14 contacts the peripheral edge of the branch hole 12a or the peripheral edge of the second hole 12b, so that both the holes 12a and 12b are closed in a watertight manner. . Further, the opposite side of the valve housing 12 to the second hole 12b is open in communication with both holes 12a and 12b. Furthermore, a shaft end portion of the rotation shaft 13 b of the valve body 13 is projected from the side portion of the valve housing 12.

  In addition, a disc 12c having an outer peripheral surface having substantially the same diameter as the inner peripheral surface of the opening 2b of the housing 2 and an inner peripheral surface having substantially the same diameter as the branch hole 12a is disposed on the upper portion of the valve housing 12. The sealing material 15 is fitted in a concave groove formed along the outer peripheral surface of the disk 12c. Further, ribs 12d and 12d are formed from the side to the bottom of the valve housing 12 so as to sandwich the pivot shaft of the valve body 13 from the left and right, and are formed along the side peripheral surfaces of the ribs 12d and 12d. The sealing materials 16 and 16 are continuously fitted to the sealing material 15 in the concave grooves. Further, two legs 17 extending downward are provided on the bottom surface of the valve housing 12 so as to project.

  In the water control valve 11, the branch hole 12a is positioned on the opening 2b side of the housing 2 in a state where the valve body 13 is rotated to the position where the branch hole 12a is closed, that is, the position where the second hole 12b is opened. In addition, the second hole 12b is located on the downstream side of the fluid pipe 1 so that the second hole 12b is located in the casing 2 in an undisturbed state. Thus, since the water control valve 11 has the 2nd hole 12b which comprises the flow path of the fluid pipe | tube 1, the water control valve 11 can be installed in a non-continuous water state.

  Concave portions 2g and 2g are provided at two predetermined locations on the inner bottom surface of the housing 2 (see FIGS. 1B and 7), and a guide (illustrated) provided on the inner peripheral surface of the housing 2 in the vertical direction. The water control valve 11 is guided along the abbreviation), and the leg portions 17 and 17 of the valve housing 12 are fitted into the recesses 2g and 2g. While positioning, the movement of the valve housing | casing 12 installed in the housing | casing 2 predetermined is controlled.

  Further, as shown in FIG. 6, after the water control valve 11 is installed, a bolt 24 is screwed into the housing 2 into the plurality of female screw portions 2 h formed on the outer peripheral surface of the upper portion of the housing 2, and the bolt 24 Is brought into contact with the upper surface of the disc 12c of the water control valve 11, the installation position of the water control valve 11 inside the housing 2 is maintained, and movement due to fluid pressure is prevented.

  At the position where the water control valve 11 is installed inside the housing 2, the sealing materials 15 and 16 provided on the outer surface of the valve housing 12 abut against the inner surface of the housing 2 in a watertight manner, Since both sides are partitioned as a boundary, on the outside of the valve housing 12, the branch hole 12 a side, the second hole 12 b and the rotating shaft 13 b side are watertight by the sealing material 15, and the sealing material 16 similarly The two holes 12b and the rotating shaft 13b are watertight.

  After installing the water control valve 11, the on-off valve 5 and the insertion machine 10 connected to the flange 2 c of the opening 2 b of the housing 2 are removed from the housing 2. Thus, in the state which the valve body 13 rotated to the position which closed the branch hole 12a, this branch hole 12a is located in the opening part 2b side, and the water control valve 11 is installed in the housing | casing 2 inside. Therefore, the on-off valve 5 connected to the opening 2b can be removed without leaking water from the opening 2b to the outside of the housing 2. Moreover, since the 2nd hole 12b is open | released, even when installing the water control valve 11 in a non-continuous water state, the distribution | circulation of the fluid in the fluid pipe | tube 1 is not interrupted | blocked.

  As shown in FIG. 6, in the state where the valve body 13 is rotated to the position where the branch hole 12 a is closed, the rotation restricting member 19 for restricting the rotation of the valve body 13 is a rotation shaft. It is preferable to engage with a rotating shaft 13c provided substantially coaxially facing 13b and to be connected to the valve housing 12 with a bolt. In this way, when the water control valve 11 is installed in the housing 2, the valve body 13 is brought into contact with the inside of the housing 2 due to the water control valve 11 or due to fluid pressure generated in the fluid pipe. It is possible to prevent unexpected rotation from the position where the branch hole 12a is closed. The rotation restricting member 19 may be removed through the hole 2e of the housing 2 after the water control valve 11 is installed in the housing 2.

  Next, as shown in FIG. 7, the branch member 18 constituting the branch path is connected to the flange 2 c of the opening 2 b of the housing 2. Specifically, the branch member 18 has an end connected to the opening 2b that opens upward, extends upward, continuously bends approximately 90 degrees, and extends substantially horizontally. Thus, a substantially parallel branch path can be formed above the fluid pipe 1.

  In this way, the branch path branched from the fluid pipe 1 can be formed through the opening 2b used for connecting the pipe cutting means and installing the water control valve 11, so that the fluid pipe 1 can be formed. It is not necessary to form a separate opening for forming a branch path in the surrounding casing 2, so that the processing effort of the casing 2 is facilitated and the strength of the casing 2 can be maintained. Moreover, the branch member 18 can be connected using the flange 2c provided in the opening 2b.

  Further, since the opening 2b is opened upward, for example, even when there is no space due to other members present on the left and right sides of the fluid pipe 1, the opening opened upward. The branch member 18 can be connected to 2b.

  A bypass pipe 23 having a smaller diameter than the branching member 18 communicating the fluid pipe 1 and the branching member 18 is provided separately using the drain port 2f, and an open / close valve (not shown) interposed in the pipe line of the bypass pipe 23. ), The amount of branch water to the branch path can be controlled even when the branch hole 12a is closed.

  Next, as shown in FIG. 6, the connection of the operation shaft 21 of the water control valve 11 will be described. First, the water stop plate (not shown) connected to the insertion hole 2d of the housing 2 is removed and the insertion hole is removed. Open 2d. As described above, at the installation position of the water control valve 11 in which the leg portion 17 of the valve housing 12 is fitted and positioned in the recess 2g in the housing 2, the insertion hole 2d and the rotation shaft of the water control valve 11 are located. 13b is positioned substantially coaxially, and as described above, the sealing material 15 and 16 for partitioning the branch hole 12a and the second hole 12b and the insertion hole 2d in a watertight manner are interposed. Even if the plate is removed and the inside of the housing 2 is opened, the fluid in the fluid pipe 1 can be prevented from leaking from the branch hole 12a or the second hole 12b through the insertion hole 2d.

  Then, the end portion of the operation shaft 21 configured in the shaft unit 20 is inserted from the outside of the housing 2 toward the inside of the housing 2 through the insertion hole 2d. The operation shaft 21 is a shaft body having substantially the same diameter as the rotation shaft 13b, and a convex portion extending in the axial direction is formed at the tip of the operation shaft 21. Similarly, a concave portion having a shape that can be fitted to the convex portion is formed at the end portion of the rotating shaft 13 b facing the tip portion of the operation shaft 21. By fitting the tip end portion of the operation shaft 21 having such a shape and the end portion of the rotation shaft 13b, the operation shaft 21 and the rotation shaft 13b can be rotated synchronously around the axis. .

  As described above, since the control shaft 21 can be inserted from the outside of the housing 2 through the insertion hole 2d formed in the housing 2 after the water control valve 11 is installed in the housing 2, the operation extending in the axial direction is possible. The water control valve 11 that does not include the shaft 21 can be easily installed inside the housing 2, and the housing 2 can be downsized.

  Next, the flange 22 of the shaft unit 20 and the flange of the insertion hole 2d are connected by bolts and nuts, and the speed reducer 24 is connected to the rear end portion of the operation shaft 21 as shown in FIG. By directly rotating the rotation operation shaft 24a provided in the speed reducer 24 and extending vertically, the rotation shaft 13b is rotated through the operation shaft 21, and the valve body 13 is arbitrarily rotated. Can do. Note that the operating shaft 21 connected to the rotating shaft 13b may be directly rotated without attaching a speed reducer as in this embodiment.

  As described above, the water control valve 11 includes the valve housing 12 having the branch hole 12a and the valve body 13 provided in the valve housing 12 so as to be able to open and close the branch hole 12a, and is located on the opening 2b side. By opening and closing the branch hole 12a that is opened by the valve body 13, the flow of the fluid to the branch path can be controlled.

  The valve housing 12 further includes a second hole 12b positioned on the cut portion side of the fluid pipe 1, and the valve body 13 is further provided to be able to open and close the second hole 12b. By opening and closing the second hole 12b located on the cut portion side of the pipe 1 by the valve body 13, the flow of the fluid in the fluid pipe 1 can be further controlled.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the opening 2b of the housing used for connecting the pipe cutting means and installing the water control valve 11 is opened upward, and the branch extending upward to the opening 2b. Although the members are connected, if the branch hole of the water control valve is located on the opening side of the housing, the opening of the housing is not necessarily open upward. It is not restricted, For example, you may open toward the side.

  Moreover, in the said Example, the water control valve 11 is comprised from the valve housing | casing 12 which has the branch hole 12a and the 2nd hole 12b, and the valve body 13 which rotates these both holes 12a and 12b so that opening and closing is possible. However, if the water control body has at least a branch hole located on the opening side of the housing and a second hole constituting the flow path of the fluid pipe, for example, the water control body can be a ball valve or A sluice valve may be used, and a valve body for opening and closing a branch hole or the like may not be provided.

  In the above embodiment, the operation shaft 21 for rotating the valve body 13 after the water control valve 11 is installed inside the housing 2 is inserted from the outside of the housing 2 through the insertion hole 2d. You may install the water control body in which the axis | shaft was assembled | attached inside a housing | casing.

(A) is a front view which shows the housing | casing of the water control body installation apparatus in the Example of this invention, (b) is a top view similarly to (a). It is the schematic which shows the condition which connects a pipe cutting means to the opening part of a housing | casing. It is the schematic which shows the condition which connects a water control body press means to the opening part of a housing | casing. It is a perspective view of a water control body. (A) is a partial cross-sectional view of the water control body, and (b) is a bottom view similar to (a). It is sectional drawing which shows the inside of the housing | casing which installed the water control body. It is a partial cross section figure which shows the housing | casing which connected the branch member.

Explanation of symbols

1 Fluid Pipe 2 Housing 2b Opening 2c Flange (Connection)
2d Insertion hole 2f Drain hole 5 On-off valve 7 Drilling cutter (pipe cutting means)
11 Water control valve (water control body)
12 Valve housing 12a Branch hole 12b Second hole 13 Valve body 13b Rotating shaft 14 Sealing material 15, 16 Sealing material 18 Branching member 19 Rotation restricting member 21 Operation shaft 24 Reduction gear

Claims (4)

The outer peripheral surface of the fluid pipe is surrounded by at least a casing having a divided structure, and a pipe cutting means is connected to an opening provided with a connecting portion formed in the casing. A water control body having at least a branch hole forming a branch path branched from the fluid pipe and a second hole forming a flow path of the fluid pipe is formed through the opening. A water control body installation device installed inside a housing,
The branch hole is located on the opening side ,
The water control body includes a valve housing including at least the branch hole and the second hole, and a valve body provided in the valve housing so as to be able to open and close the branch hole or the second hole. Water control body installation device characterized by.   The water control body installation device according to claim 1, wherein the opening is opened upward. The insertion hole is formed in the housing, and the valve body is provided so that the both holes can be opened and closed by rotating an operation shaft that can be inserted into the insertion hole. The water control body installation device according to 1 or 2 . The water control body installation according to claim 3 , wherein a sealing material is provided between the inner surface of the housing and the outer surface of the valve housing to partition the both holes and the insertion hole in a watertight manner. apparatus.

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