JP2000097379A - Aqueduct pipe joint part moving prevention tool and aqueduct pipe joint part moving prevention structure using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an aqueduct pipe joint part from moving and to detect the leak before burying it by covering a spigot side fitting part and a socket side fitting part formed into semicircular shapes over a spigot and a socket of the connected aqueduct pipe and by reinforcing the connection. SOLUTION: This aqueduct pipe joint part 5 is formed by connecting a spigot port 4 of one aqueduct pipe 1 to a socket port 2 of the other aqueduct pipe 3. Two holder bodies 8 provided with an approximately semi-circular spigot side fitting part and an approximately semi-circular socket side fitting part 6 having a radius larger than the other as moving prevention tools cover over the circumference of the aqueduct pipe joint part 5 to reinforcingly connect them together. The socket side fitting part 6 is provided with a front arch 20 and a rear arch 21 having a slip prevention projecting streak in its inside, and the spigot side fitting part 6 is provided with an arch 24 having a slip prevention in its inside. The front arch 20 abuts a vertical piece 28 against the socket end face 29 in covering the socket side fitting part 6 so as to be prevented from being slipped off toward the aqueduct 1 side. A connecting piece 31 is projected to the outside of the arches 21, 24 and a connecting tool 9 is inserted in its hole so as to fasten the holder bodies with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint of a water pipe, which is press-fitted with a spigot of one of the water pipes into a socket of the other water pipe and connected in the axial direction, by the pressure of water flowing inside the pipe. TECHNICAL FIELD The present invention relates to a water pipe joint movement preventing tool and a water pipe joint movement preventing structure using the same.

[0002]

2. Description of the Related Art When two water pipes are connected in an axial direction,
Conventionally, as shown in FIG. 5, a lock ring centering rubber D is disposed in a deep groove C on an inner peripheral surface of a receiving port B which is widened outward on one water pipe A, and a steel-made lock ring is disposed inside the rubber ring. E is disposed, a rubber ring G is disposed in the front groove F, and the spigot I of the other water pipe H is press-fitted inside the rubber ring G. In this case, a white line for confirming the insertion position is displayed at a predetermined position (usually near point J in FIG. 5) on the outer peripheral surface of the outlet I, and the outlet I is pressed into the receptacle B up to the white line position. are doing. Similarly, a number of water pipes A and H are repeatedly connected, and the connected water pipes are buried underground.

[0003]

The above-mentioned conventional water pipe connection method has the following problems. (1) Conventionally, water pressure was applied to the inside of a connected water pipe to visually check that there was no water leakage at the joint, and then the water pipe was buried underground. Since the part moved, it was not possible to conduct a water leak inspection. (2) Since the joint part of the connected water pipe moves due to the water pressure, the exposed pipe could not be formed. (3) If the water pipes are to be connected on the ground, the joints will move when the water pipes are lifted, so the connecting work must be performed in the buried trench, and a large buried trench must be dug. Did not. (4) Many connected water pipes may be piped in a straight line, curved, or meandering. When making a curve or meandering, it is necessary to arrange the direction of the water pipe on the receiving side of the two connected water pipes slightly obliquely, and it is necessary to position the direction. Since there is no suitable device or jig for positioning it, it is difficult to position it. There was also a problem that it was difficult to do.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent a joint between a spout and a receiving port of a water pipe connected by a conventional connecting method from moving, and to perform a moving test before embedding in the ground. It is an object of the present invention to provide a water pipe joint movement preventing tool which can be performed and can adjust the direction of a connected water pipe, and a water pipe joint movement preventing structure using the same.

[0005] A first water pipe joint movement preventing tool according to the present invention is a water pipe joint part which press-fits a socket of one water pipe into a socket of the other water pipe and axially connects both water pipes. The receiving side fitting portion to cover the outer periphery of the receiving side and the spigot side fitting portion to cover the outer periphery of the spout side are formed in a semi-circular shape and in a series to form a holder main body. The fitting body is provided with a connecting portion for connecting the two holding tool bodies, which are placed facing each other around the water pipe joint, with a connecting tool.

A second water pipe joint movement preventing tool according to the present invention is a water pipe joint in which one water pipe is press-fitted with a socket of the other water pipe and both water pipes are connected in the axial direction. The receiving side fitting portion to cover the outer periphery of the receiving side and the spigot side fitting portion to cover the outer periphery of the spout side are formed in a semi-circular shape and in a series to form a holder main body. A connecting part for connecting the two holder bodies, which are placed facing the periphery of the water pipe joint part to the fitting body, by a connecting tool, and pressing the outer peripheral surface of the receptacle directly or indirectly from the outside to form the receptacle. Is provided with a positioning mechanism capable of positioning a water pipe provided with a predetermined direction.

In the third water pipe joint movement preventing tool of the present invention, the connecting tool in the first or second water pipe joint movement preventing tool is a fixing bolt, and the connecting part is capable of inserting the fixing bolt. It is characterized by having a through hole.

According to a fourth water pipe joint movement preventing tool of the present invention, the positioning mechanism of the second water pipe joint movement preventing tool is configured such that a receiving hole is externally inserted into a screw hole opened in the holder body. A push bolt for directly or indirectly pushing is screwed.

A fifth water pipe joint movement preventing structure of the present invention uses two of the first to fourth water pipe joint movement preventing tools, and the two water pipe joint movement preventing apparatuses. On the outer periphery of the socket of one water pipe to which the fitting part on the receiving side of the two holder bodies of the fixture is connected, and on the outer circumference of the fitting side of the other water pipe to which the fitting part on the other side is connected. The two holders are connected to each other by a connecting member so as to surround the periphery thereof so as to face each other.

A sixth water pipe joint movement preventing structure according to the present invention is characterized in that the second or fourth water pipe joint movement preventing tool comprises
The two fittings of the two fittings of the two water pipe joints are used to connect the receiving-side fitting parts of the two holders to the spigot-side fitting part on the outer periphery of the connected receiving port of one of the water pipes. Cover the outer periphery of the other water pipe on the spigot side so as to surround the periphery thereof, and connect the connecting portions of the two holder main bodies with the connecting tool, and use the positioning mechanism to perform the outer circumference of the receiving port. By pressing the surface directly or indirectly via a member, the water pipe provided with the receiving port is positioned in a predetermined direction.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) A water pipe joint movement preventing device of the present invention (hereinafter abbreviated as a movement preventing device).
An example of the embodiment will be described in detail with reference to FIGS. This movement preventing device has a substantially semicircular spigot side fitting portion 7.
A connecting part 10 for connecting the two holder main bodies 8 and a positioning mechanism 11 are formed in a holder main body 8 having a semi-circular receiving-side fitting part 6 having a larger radius than the receiving part 6. Do it.

The receiving side fitting portion 6 connects a substantially semicircular front arch 20, a semicircular rear arch 21 having a slightly larger radius, and the left and right sides of the front arch 20 and the rear arch 21. It comprises a rear connecting frame 22 and an intermediate connecting frame 23 connecting the central portions of both arches 20 and 21. The spigot-side fitting portion 7 includes an approximately semicircular spigot-side arch 24, and a front connection frame 25 formed on both left and right sides thereof and connected to the receiving-side fitting portion 6. These are integrally formed by cast iron. The front arch 20 and the rear arch 21 are formed in a slightly flat semi-circular shape so as to cover about half of the outer periphery of the receiving port 2 of the water pipe 1, and as shown in FIG. 4 (c), a gap 26 is slightly formed outside the receiving port 2 of the water pipe 1 as shown in FIG. Front arch 24
Is formed in a substantially semicircular shape so as to cover about half of the outer circumference of the water pipe 2 on the side of the outlet 4 and when the outer circumference is covered as shown in FIG. 2), the inner peripheral surface thereof almost uniformly contacts the outer peripheral surface of the spigot 4.

As shown in FIG. 2, short anti-slip ridges 27 are arranged in the front-rear direction on the inner surface of the rear arch 21, and the receiving side fitting portion 6 is inadvertently rotated in the circumferential direction of the water pipe 1. I try not to. The front arch 20 is formed in an L-shaped cross section as shown in FIG. 1, and when the receiving side fitting portion 6 is put on the outer periphery of the receiving port 2 as shown in FIG. The vertical piece 28 abuts against the end face 29 of the receptacle 2 so that it does not come off to the water pipe 1 provided with the receptacle 2. Front arch 2
Slender anti-slip ridges 30 are arranged in the lateral direction on the inner surface of the spout 4 so that the spigot side fitting portion 7 is hard to be pulled out of the spigot 4. On both outer sides of the rear arch 21 and the front arch 24, connecting pieces 31 are protrudingly provided.
Is formed. The connection portion 10 is a through hole into which a connection tool (connection bolt) 9 can be inserted. A general-purpose T-head bolt is suitable for the connection bolt 9.

The above-mentioned positioning mechanism 11 is used for the rear connecting frame 2.
2, and a push bolt 13 is screwed into a screw hole 12 penetrating from the outer surface to the inner surface of the rear connection frame 22. When the push bolt 13 is screwed in and its tip is pressed against the member 14 (P plate 33) arranged on the outer peripheral surface of the receptacle 2 as shown in FIG. 3, the outer peripheral surface of the receptacle 2 is pushed by the P plate 33. It is like that. In this case, when the push bolt 13 pressing against one P plate 33 of the receiving port 2 is loosened, and the pressing bolt 13 pressing against the other P plate 33 is tightened and the P plate 33 is pressed, the receiving port 2 is pressed. Then, the direction of the water pipe 1 is adjusted, and at a position where the water pipe 1 is oriented in a predetermined direction, the push bolt 13 on the opposite side which has been loosened until then is screwed into the P plate 3.
When the user presses the button 3, the water pipe 1 provided with the receiving port 2 is fixed, and its orientation is positioned. P plate 33
Is provided with an arcuate curved portion 34 on one side and a plane portion 35 on the other side, the curved portion 34 is curved so as to fit the outer peripheral surface of the receptacle 2, and the flat portion 35 is
Is formed in a flat surface so that the front end thereof can be easily hit, and its outer periphery is surrounded by a ridge 36.

(Embodiment 2) An embodiment of a water pipe joint movement preventing structure (hereinafter abbreviated as a movement preventing structure) of the present invention will be described in detail with reference to FIGS.
In the movement prevention structure shown in FIG. 3, the reception side fitting portions 6 of the two movement prevention tools of the first embodiment are put on the outer circumference of the reception port 2 of one water pipe 1 connected in the axial direction so as to face each other. Then, the spigot-side fitting portions 7 of the two movement preventing tools of the first embodiment are placed on the outer periphery of the receiving port 4 of the other water pipe 3 so as to face each other, and are connected to the connecting portions 10 of the two holding tool bodies 8 facing each other. A tool (connection bolt) 9 is inserted and connected. A T-head bolt is used as the connecting bolt 9, and it is inserted from a connecting portion (through hole) 10 of one holder main body 8 to a connecting portion (through hole) 10 of the other holder main body 8. A nut 37 is screwed into the tip of the T-head bolt 9 protruding from the through-hole and tightened to connect the two opposing holder main bodies 8. In this case, the vertical piece 28 of the front arch 20 having the L-shaped cross section of the receiving-side fitting portion 6 abuts against the end surface 29 of the receiving port 2 so as not to come off to the water pipe 1 provided with the receiving port 2. is there.

Next, of the two positioning mechanisms 11 of the two holding tool bodies 8 connected to each other, the push bolt 13 of one of the positioning mechanisms 11 is loosened, and the push bolt 13 of the other positioning section 10 is tightened. When the P plate 33 disposed on the outer peripheral surface of the second pipe 2 is pressed, the socket 2 is pressed by the P plate 33 and the direction of the water pipe 1 is adjusted. When the water pipe 1 is oriented in a predetermined direction, when the push bolt 13 on the opposite side which has been loosened is screwed in and the P plate 33 is pressed, the water pipe 1 provided with the receiving port 2 is fixed, and its orientation is changed. Is positioned.

[0017]

The first movement preventing device of the present invention comprises a spigot side fitting portion which covers the spigot of one water pipe connected in the axial direction, and the other water pipe into which the spigot is inserted. Since the receiving side fitting part to cover the receiving port is formed in a semicircular arc and integrally, the two water pipe detachment preventing tools are placed over the outer circumference of the receiving port and the spigot and connected by the connecting tool. Thus, it is possible to prevent the water pipe joint part in which the spigot is pressed into the receiving port from moving.

Since the second movement preventing device of the present invention also has a positioning mechanism capable of positioning the water pipe in a predetermined direction, the positioning of the water pipe connected in the axial direction is adjusted by the positioning mechanism. This makes it easy to pipe the two water pipes by curving or meandering them, and also makes it easier to maintain the curves and meandering.

In the third movement preventing device of the present invention, the connecting member of the moving preventing device is a stop bolt, and the connecting portion is a through hole into which the stop bolt can be inserted. Connection of the two movement stoppers is facilitated.

According to the fourth movement preventing device of the present invention, the positioning mechanism is such that a push bolt for directly or indirectly pressing the receiving port from the outside is screwed into the screw hole opened in the holder body. By simply adjusting the screwing of the push bolt, the direction of the water pipe can be easily positioned, and the two water pipes can be curved or meandered, making it easier to pipe. It will be easier to maintain.

The fifth and sixth movement preventing structures of the present invention have the following effects. . Even if water pressure is applied to the connected water pipe, the joint does not move, so that the joint can be inspected for water leakage. . Even if water pressure is applied to the connected water pipe, the joint does not move, so that the exposed pipe of the joint can be provided. . Even if the water pipes are connected on the ground and lifted, the joints do not move, so they can be connected on the ground, improving workability and safety, and reducing the size of the buried groove.

A fifth movement prevention structure according to the present invention uses one of the two movement prevention tools described above to connect one of the water prevention pipes to the receiving-side fitting portion of the two movement prevention tools. Cover the outer periphery of the socket on the outlet side of the other water pipe to which the spigot-side fitting part is connected so as to surround the periphery of them, 2
Since the connecting part of the two holder bodies is connected by a connecting tool, it can hold the water pipe joint with a simple structure and prevent movement, and perform a migration resistance test before embedding in the ground You can also.

The sixth structure for preventing movement according to the present invention is characterized in that any one of the two movement preventing devices is placed on the outer periphery of the water pipe joint, and the connecting portions of the movement preventing devices are connected by a connecting device, and a positioning mechanism is provided. By pressing the outer peripheral surface of the receiving port directly or indirectly through a member to position the water pipe in a predetermined direction, the two water pipes can be curved at a desired angle or meandered, The curve and meander can be maintained.

[Brief description of the drawings]

FIG. 1 is a front perspective view showing an example of a connector of a water pipe joint movement preventing device of the present invention.

FIG. 2 is a rear perspective view showing an example of a connector of the water pipe joint movement preventing device of the present invention.

FIG. 3 is a perspective view showing a usage example of the water pipe joint movement preventing device of the present invention.

4 (a) is a plan view of a state in which the water pipe joint movement preventing device of the present invention is put on the water pipe joint and connected thereto, FIG. 4 (b) is a view taken along arrow aa in FIG. 4 (a), (C) is bb in FIG.
FIG. 4D is a view taken in the direction of arrows c-c in FIG. 4A, and FIG. 4E is a view taken in the direction of arrows d-d in FIG. 4A.

FIG. 5 is a vertical sectional view of an upper half showing a conventional water pipe connection structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water pipe 2 Inlet 3 Water pipe 4 Outlet 5 Water pipe joint part 6 Inlet side fitting part 7 Outlet side fitting part 8 Holder main body 9 Connecting tool 10 Connecting part 11 Positioning mechanism 12 Screw hole 13 Push bolt 14 members

Claims (6)

[Claims] 1. A water inlet (2) of one of the water pipes (1) is press-fitted with a spigot (4) of the other water pipe (3).
In the water pipe joint part (5) in which 3) is connected in the axial direction, the receiving side fitting part (6) that covers the outer circumference on the receiving port (2) side and the difference that covers the outer circumference on the spout (4) side. The mouth-side fitting portion (7) is formed in a semicircular arc and in a series to form a holder main body (8). The holder main body (8) is opposed to the periphery of the water pipe joint (5). A water pipe joint part movement preventing tool, characterized in that a connecting part (10) for connecting two holding tool bodies (8) covered by a connector with a connecting tool (9) is provided. 2. A water inlet (2) of one of the water pipes (1) is press-fitted with a spigot (4) of the other water pipe (3).
In the water pipe joint part (5) in which 3) is connected in the axial direction, the receiving side fitting part (6) that covers the outer circumference on the receiving port (2) side and the difference that covers the outer circumference on the spout (4) side. The mouth-side fitting portion (7) is formed in a semicircular arc and in a series to form a holder main body (8). The holder main body (8) is opposed to the periphery of the water pipe joint (5). And a connecting portion (10) for connecting the two holding tool bodies (8) covered by the connecting tool (9), and an outer peripheral surface of the receiving port (2) by directly or indirectly pressing the outer surface of the receiving port (2). A water pipe joint part movement preventing tool provided with a positioning mechanism (11) capable of positioning a water pipe provided with a) in a predetermined direction. 3. The connecting device (9) in the water pipe joint movement preventing device according to claim 1 or 2, wherein the connecting device (9) is a fixing bolt.
A water pipe joint part movement preventing tool, wherein the connecting part (10) is a through hole into which the fixing bolt can be inserted. 4. A positioning mechanism (11) in the water pipe joint movement preventing device according to claim 2, wherein the receiving hole (2) is directly inserted from the outside into the screw hole (12) opened in the holder body (8). Alternatively, a water pipe joint movement preventing device, wherein a push bolt (13) for indirectly pushing is screwed. 5. The two water pipe joint part movement preventing tools according to claim 1, wherein two water pipe joint part movement preventing tools are used to hold the holder body (8). The other end of the water pipe (3) to which the spigot side fitting part (7) is connected is provided on the outer periphery of the receiving port (2) of the one water pipe (1) to which the side fitting part (6) is connected. The outer periphery of the mouth (4) side is covered so as to surround the periphery thereof, and the connecting portion (10) of the two holder main bodies (8) is connected by the connecting tool (9). Water pipe joint movement prevention structure. 6. The two water pipe joint part movement preventing tools according to claim 2 or 4, wherein the two water pipe joint part movement preventing tools have two holder main bodies (8) on the receiving side. Fitting part (6)
On the outer periphery of the socket (2) of one of the connected water pipes (1), the spigot side fitting part (7) and the spout (4) side of the other connected water pipe (3). And a cover (10) of the two holder bodies (8) are connected by a connector (9), and a receiving mechanism (11) is used by a positioning mechanism (11). A water pipe joint part movement preventing structure characterized in that the outer peripheral surface of (2) is pushed directly or indirectly via a member (14) to position the water pipe provided with the socket (2) in a predetermined direction. .