JP2002168092A - Holding device for mouth pouring pipe, and mouth pouring pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a butt end of an inlet and a holding device for the butt end capable of easily carrying out an adhering work without requiring screwing, with which any remaining portion of the pouring pipe cut off on the job site can be utilized for another inlet. SOLUTION: A fixed plate portion to be attached to a mouth of an inlet, a socket portion to which a pouring hose and a pouring pipe can be attached, and a check valve attached to the socket portion; the fixed plate portion and the socket portion can be formed in one united body; and the socket portion comprises a pouring hose attaching portion provided with a female threaded portion and a pouring pipe attaching portion having no threaded portion arranged oppositely each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouth injection pipe holder and a mouth injection pipe used for back injection of, for example, tunnels, water pipes, and the like.

[0002]

2. Description of the Related Art For example, as shown in FIGS. 10 and 11, for back filling of a tunnel, a water pipe, or the like, a backing concrete C such as a tunnel is penetrated from an inner side C2 to a back side C1. Attach the mouth injection tube 100 to the hole H,
A method is adopted in which an injection material (for example, mortar) S is injected into a cavity B between the back side C1 of the lining concrete C and the ground G, and the cavity B is replaced with a cured product of the injection material S.

FIG. 12 and FIG. 13 show a conventional mouth injection tube 1. The mouth injection pipe 100 is a mouth injection pipe holder 11 in which a stainless steel cylindrical socket 111 and a stainless steel fixing plate 115 are integrally processed by a welding bead 119.
0, a check valve 120, and an injection pipe 130 made of a synthetic resin pipe such as a vinyl chloride pipe.

The socket 111 has a threaded portion 112 formed on the inner surface thereof over the entire length. In the fixing plate 115,
A hole 116 having a diameter slightly larger than the outer diameter of the socket 111 for mounting the socket 111 and two holes 11 for fixing are provided.
7 are provided. The check valve 120 has two open / close blades 1
A frame portion 124 having a valve portion 121 having a support 22 and a support portion 123, a screw portion 125 engraved on the outer periphery, the valve portion 121 being attached, and a valve seat 126 being provided.

[0005] The injection pipe 130 has a threaded portion 131 formed on the outer periphery thereof for a length necessary for mounting the socket 111. It is desirable that the length of the screw portion 131 be approximately 1/2 to 1/4 of the entire length of the socket. Next, assembly of the mouth injection tube 100 will be described. First, the entire length of the screw portion 131 of the injection pipe 130 is
Screw into 12.

Next, the check valve 120 is screwed into the screw portion 112 of the socket 111 from the opposite side of the socket 111. At this time, the check valve 120 is screwed until it comes into contact with the previously screwed injection pipe 130 as shown in FIG.

Next, the mouth injection tube 10 constructed as described above will be described.
0 is the injection pipe 13 in the injection hole H so that the injection pipe 130 reaches the cavity B as shown in FIGS.
In a state where 0 is inserted, the total screw bolt 142 previously fixed to the mouth H1 of the injection hole H is inserted into the hole 117 of the fixing plate 115, and the nut 141 is fixed to the total screw bolt 142 via the washer 140 by tightening. . Here, when the injection hole H is provided, the total screw bolt 142 is simultaneously fixed in the small hole C3 opened in the lining concrete C.

[0008] Thereafter, as shown in FIG.
The connection fitting 150 communicating with the injection hose 151 is attached to the screw portion 112 of the eleventh part 11 and the injection material S is injected. At the time of injection, the open / close wing 122 of the check valve 120 opens the flow path by the injection pressure as shown in FIG. When the injection is completed, the open / close wing 122 of the check valve 120 returns to the valve seat 126 as shown in FIG.

Therefore, before the injection material S is hardened,
The injection material S does not leak from the mouth injection pipe 100.

[0010]

As shown in FIG.
The length of the injection pipe 130 needs to be changed depending on the thickness of the cavity B on the back side C1 of the lining concrete C such as a tunnel. The thickness of the cavity B is measured by drilling the injection hole H and then inserting a scale or the like into the hole. That is, the thickness of the cavity B is not known until the injection hole H is drilled, and the required number of injection pipes of a required length cannot be prepared in advance.

For this reason, it is necessary to cut the injection pipe 130 having an external thread engraved at one end, which is longer than the required length assumed in advance, or to prepare an injection pipe 130 having a different length in advance. . In the case of (1), the remaining cut injection pipe 130 cannot be used because it has no screw portion 131 and has been discarded.

In this case, it is necessary to prepare an injection pipe 130 which greatly exceeds the quantity to be used.
Therefore, as a method for improving workability, the injection pipe 13 is used.
0 and the check valve 120 are connected to the socket 111 of the mouth injection pipe 100.
However, if the inner surface of the socket 111 is thin and there is no unevenness in the mounting position alignment, it will not be possible to solve the difficulty of the mounting operation and will not improve the workability. .

The socket 111 and the fixing plate 115
Can be made of plastic, but cannot solve the above-mentioned problem. The present invention has been made to solve such a conventional problem, and its object is to
An object of the present invention is to provide an inlet base tube holder and an inlet base tube that do not require screwing and can easily perform a bonding operation.

Another object of the present invention is to provide an inlet base pipe holder and an inlet base pipe which can be used in a separate hole even if the injection pipe is cut on site.
It is another object of the present invention to provide an inlet base tube holder and an inlet base tube which are configured with a smaller number of parts than conventional.

[0015]

The invention according to claim 1 is
A fixing plate portion attached to the mouth of the injection hole, a socket portion for attaching an injection hose and an injection pipe are provided, and the fixing plate portion and the socket portion are integrally formed, and the socket portion has a female screw. The injection hose mounting part provided with the part and the injection pipe mounting part without a screw part are arranged opposite to each other.

According to a second aspect of the present invention, there is provided a fixing plate attached to a mouth of an injection hole, a socket for attaching an injection hose and an injection pipe, and a check valve attached to the socket. A fixed plate portion and the socket portion are integrally formed, and the socket portion is configured such that an injection hose mounting portion provided with a female screw portion and an injection pipe mounting portion without a screw portion are arranged to face each other. Features.

According to a third aspect of the present invention, in the mouth inlet pipe holder according to the first or second aspect, a frame portion for mounting a valve portion of a check valve is integrally formed with the socket portion. It is characterized by. According to a fourth aspect of the present invention, in the mouth-injection-pipe holder according to the third aspect, the frame portion protrudes toward a center of the socket portion, and forms a positioning portion of the injection pipe inserted into the injection pipe mounting portion. It is characterized by doing.

According to a fifth aspect of the present invention, in the mouth injection pipe holder according to the fourth aspect, the frame portion has an annular step portion that contacts the injection pipe, and the annular step portion has a smaller diameter than the annular step portion. A check valve valve seat formed concentrically on the injection hose mounting portion side in connection with the injection hose mounting portion, and a check valve holding portion provided in connection with the check valve valve seat. And According to a sixth aspect of the present invention, in the mouth injection pipe holder according to the fifth aspect, the holding portion for the check valve is a projection having a concave cross section which is arranged to face the inner peripheral surface of the valve seat for the check valve. The mounting portion of the valve portion of the check valve is fixed to the projection.

According to a seventh aspect of the present invention, in the mouthpiece holder according to any one of the first to sixth aspects, the fixing plate portion and the socket portion are made of rubber or plastic. And According to an eighth aspect of the present invention, there is provided a mouth injection pipe holder according to claim 1, a check valve attached to a socket part of the mouth injection pipe holder, and an injection pipe of a socket part of the mouth injection pipe holder. And an injection pipe attached to the attachment portion.

According to a ninth aspect of the present invention, there is provided a mouth injection pipe holder according to the second aspect, and an injection pipe attached to an injection pipe mounting portion of a socket portion of the mouth injection pipe holder. Features. The invention according to claim 10 is
The injection pipe according to claim 8 or 9, wherein the injection pipe is fixed in the injection pipe mounting portion.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments shown in the drawings. FIGS. 1 to 7 show a mouth injection tube holder (corresponding to claims 1 to 8) according to an embodiment of the present invention, and FIGS. 8 and 9 show a mouth according to an embodiment of the present invention. 5 shows an injection tube (corresponding to claims 9 to 10). The back implant will be described with reference to FIGS.

The mouth injection tube holder 1 according to the present embodiment comprises:
A fixed plate portion 10 attached to the mouth H1 of the injection hole H in FIG. 10, a cylindrical socket portion 20 for attaching the connection fitting 150 of the injection hose 151 and the injection pipe 50, and a check valve attached to the socket portion 20 30. The fixed plate portion 10 and the socket portion 20 are integrally formed of rubber, plastic, or the like.

The fixed plate portion 10 is formed of a plate-like body having an area to be attached to the mouth H1 of the injection hole H, and has two holes 11 through which the total screw bolts 142 are inserted, facing each other. This hole 11 is a small hole C made in the lining concrete C.
3 is formed into an oval shape so that it can be securely fixed even if the position is shifted. In the socket part 20, an injection hose attachment part 21 provided with a female screw part 22 into which the connection fitting 150 of the injection hose 151 is screwed, and an injection pipe attachment part 23 into which the injection pipe 50 is inserted are opposed to each other. The inner diameter of the injection pipe mounting portion 23 is slightly larger than the outer diameter of the injection pipe 50.

Between the injection hose mounting portion 21 and the injection pipe mounting portion 23 (substantially in the middle of the socket portion 20), a frame portion 24 for mounting the valve portion 31 of the check valve 30 is integrally formed. . The frame portion 24 projects more than the thickness of the injection pipe 50 toward the center of the socket portion 20, and
3 forms a positioning part of the injection pipe 50 inserted into the injection pipe mounting part 23.

The frame 24 is formed concentrically with an annular step 25 abutting the tip 51 of the injection pipe 50, and having a smaller diameter than the annular step 25 and projecting from the annular step 25 toward the injection hose mounting section 21 side. A check valve seat 26 and a check valve holding portion 27 provided on the check valve seat 26. The inner surface of the check valve seat 26 in the axial direction is cylindrical except for the check valve holding portion 27.

The check valve holding portion 27 is provided with a check valve seat 26.
And a projection with a concave cross section disposed opposite to the inner peripheral surface of the projection.
The check valve holding portion 27 is provided with a small hole 28 for fixing the valve portion 31 of the check valve 30 with a screw. The valve portion 31 of the check valve 30 includes, for example, as shown in FIGS. 5 to 7, a base portion 32, two arc-shaped opening / closing vanes 33 provided on the base portion 32 symmetrically with respect to the base portion 32, and a base portion. 32, plate-shaped mounting portions 34 provided at both ends, and small holes 3 provided in each mounting portion 34.
And 5. The valve portion 31 is made of a soft plastic having a required elasticity or the like.

The outer shape of the valve portion 31 has a circular shape, and its lower peripheral edge is a smooth surface that can be mounted on the check valve valve seat 26. The valve portion 31 is attached to the frame portion 24 by fitting the attachment portion 34 into the holding member 27 for a check valve and screwing a screw 40 such as a screw or a wood screw through the small holes 28 and 35. Thus, the check valve 30 is formed by attaching the valve part 31 to the frame part 24.

An example of use of the thus-configured mouth injection tube holder 1 according to the present embodiment will be described. First, the tunnel,
At a back-filling injection site such as a water pipe, an injection hole H reaching the cavity B is drilled at a site to be injected using a boring machine or the like. Then, a small hole C3 is opened in the lining concrete C at the mouth H1 of the injection hole H, and the total screw bolt 142 is attached.

Next, a scale or the like is inserted into the injection hole H, and the depth of the hole and the thickness of the cavity B are measured.
The required length is determined, the injection pipe 50 is cut to that length, an adhesive is applied to the insertion portion, and as shown in FIG. 8, inserted into the injection pipe mounting portion 23 of the mouth injection pipe holder 1, Tip 5
1 is pushed until it comes into contact with the annular step 25. At this time, by preparing the long injection pipe 50 in advance, the cut remaining injection pipe 50 can be used in another hole, so that no waste occurs. In addition, workability is good because attachment is not by screwing.

The injection pipe 50 is usually VP-50 (4 m in the case of a vinyl chloride pipe). By cutting the necessary length each time when used, the number of cut ends can be reduced.
Thus, the mouth injection pipe 60 according to the present embodiment is formed.
The mouth injection pipe 60 is attached to each injection hole H. The fixing of the mouth injection pipe 60 is performed by inserting a total screw bolt 142 into the hole 11 of the fixing plate 10 and then tightening a nut 141 through the washer 140 into the total screw bolt 142 in the same manner as in the related art.

If there is a cavity between the socket portion 20 of the inlet pipe 60 and the hole wall of the injection hole H, caulking is performed with mortar, cement milk, resin or the like. Thereafter, as shown in FIG. 10, a connection fitting 150 communicating with the injection hose 151 is attached to the injection hose attachment section 21 of the socket section 20, and the injection material S is injected. The other side of the injection hose 151 is connected to a pump (not shown), and the injection material S is pumped through the injection hose 151 from the pump.
Perform injection work.

When the injection is completed, the connection fitting 151 and the injection hose 151 are removed from the mouth injection pipe 60. After the injection hose 151 is removed, the mouth injection pipe 6
Attach a blind plug to 0. During injection, check valve 3
As shown in FIGS. 6 and 10, the opening / closing wing 33 of 0 opens the flow path by the injection pressure.

When the injection is completed, the injection hose 15
1 is removed when the injection is completed and attached to another injection hole H, but the check valve 30 and the injection pipe 50 need not be removed. At this time, the open / close wings 33 of the check valve 30 return to the check valve valve seat 26 as shown in FIGS.
Close the flow path. Therefore, the injection material S does not leak from the mouth injection pipe 60 until the injection material S is hardened.

As described above, in this embodiment, the check valve 3
Since the zero frame portion 24 is integrally formed with the socket portion 20 and the fixed plate portion 10, the work of mounting the check valve on site as in the related art is labor-saving, and the workability is improved.
In addition, small holes 28 and 35 for screws are previously opened in the lower end of the check valve holding portion 27 of the frame portion 24 of the check valve 30 and the mounting portion 34 of the valve portion 31 of the check valve 30. The check valve 3
The zero valve portion 31 can be easily attached to the frame portion 24 of the check valve.

Since the frame portion 24 of the check valve 30 protrudes from the inner surface of the socket portion 20, it can be used as a positioning portion and is easily fixed. In addition, this positioning portion is in contact with the lower surface of the tip 51 of the injection pipe 50, the inner diameter thereof is made equal to or slightly smaller than the inner diameter of the injection pipe 50, and the outer diameter of the opening / closing wing 33 of the valve portion 24 of the check valve 30. Because it is set slightly larger, the injection pipe 50
Is pressed against the frame portion 24 of the check valve 30 without interfering with the operation of the valve portion 24 of the check valve 30.

In this embodiment, the mounting portion 33 of the check valve 30
Is fixed to the check valve holding portion 27 via the screw 40, but may be fixed by an adhesive. The mouth injection pipe 60 is developed for filling the cavity on the back of the tunnel lining, but can also be used for filling a cavity such as a weir whose base has been scoured.

[0037]

According to the present invention, the screwing of the injection pipe is not required, and the bonding operation can be easily performed. Further, since it is only necessary to cut and use a long injection pipe at the site only in a required length, the disposal of the injection pipe is reduced, and the yield is greatly improved.

Further, by using a mouth injection pipe with a check valve, the number of parts is reduced and the number of assembling operations is reduced, so that it is possible to reduce the working time and the cost significantly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a mouth injection tube holder according to an embodiment of the present invention.

FIG. 2 is a plan view of the mouth injection tube holder shown in FIG.

FIG. 3 is a sectional view taken along line AA of the mouth injection tube holder shown in FIG. 2;

FIG. 4 is a cross-sectional view of the mouth injection tube holder shown in FIG. 2, taken along line BB.

FIG. 5 is a plan view showing a valve part of a check valve attached to the mouth injection pipe holder shown in FIG. 1;

6 is a side view showing a valve portion of a check valve attached to the mouth injection pipe holder shown in FIG.

FIG. 7 is a front view showing a valve part of a check valve attached to the mouth injection pipe holder shown in FIG. 1;

FIG. 8 is an exploded perspective view showing a mouth injection pipe according to an embodiment of the present invention.

FIG. 9 is a sectional view of the mouth injection tube shown in FIG. 8;

FIG. 10 is an explanatory view showing attachment of a mouth injection pipe in back injection such as a tunnel and a water pipe.

FIG. 11 is an enlarged view of a main part showing a state of the injection material awaiting curing.

FIG. 12 is an exploded perspective view showing a conventional stainless steel mouth injection tube.

FIG. 13 is a sectional view of the stainless steel mouth injection tube shown in FIG. 12;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mouth injection pipe holder 10 Fixing plate part 11 Hole 20 Socket part 21 Injection hose attachment part 22 Female screw part 23 Injection pipe attachment part 24 Frame part 25 Annular step 26 Valve check valve seat 27 Check valve holding part 28 , 35 small hole 30 check valve 31 valve part 32 base 33 opening / closing wing 34 mounting part 40 screw 50 injection pipe 51 tip of injection pipe 50 60 mouth injection pipe 150 connection fitting 151 injection hose B cavity C lining concrete G ground mountain H Injection hole H1 mouth

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hidenaka Minowa 6-22, Matsugaeda-cho, Kita-ku, Osaka-shi, Osaka Japan Basic Technology Co., Ltd. (72) Inventor Jun Kanaya 13 Kanda Konya-cho, Chiyoda-ku, Tokyo 13 Taisei Kiko F-term (reference) 2D055 JA01

Claims (10)

[Claims] 1. A fixing plate portion attached to a mouth of an injection hole, and a socket portion for attaching an injection hose and an injection pipe, wherein the fixing plate portion and the socket portion are integrally formed, and the socket is A mouth injection pipe holder characterized in that an injection hose mounting portion provided with a female thread portion and an injection pipe mounting portion having no screw portion are disposed opposite to each other. 2. A fixing plate portion attached to a mouth of an injection hole, a socket portion for attaching an injection hose and an injection pipe, and a check valve attached to the socket portion, wherein the fixing plate portion and the socket are provided. And an injection hose mounting portion provided with a female screw portion and an injection pipe mounting portion having no screw portion are disposed opposite to each other in the socket portion. Holder. 3. The mouth injection tube holder according to claim 1, wherein a frame portion for mounting a valve portion of a check valve is integrally formed with the socket portion. Tube holder. 4. The mouthpiece holder according to claim 3, wherein the frame projects in a direction toward the center of the socket, and forms a positioning part for the injection pipe inserted into the injection pipe mounting part. A mouth injection tube holder characterized by the above-mentioned. 5. The mouth injection pipe holder according to claim 4, wherein the frame portion has an annular step abutting the injection pipe, and has a smaller diameter than the annular step and is connected to the annular step to perform the injection. A mouth-injection pipe retainer comprising: a check valve valve seat formed concentrically on a hose mounting portion side; and a check valve holding portion provided in connection with the check valve valve seat. Utensils. 6. The mouth injection tube holder according to claim 5, wherein the check valve holding portion comprises a protrusion having a concave cross section which is arranged to face an inner peripheral surface of the check valve seat. A mouth injection pipe holder, wherein a mounting portion of a valve portion of the check valve is fixed to the protrusion. 7. The mouth-injection tube holder according to claim 1, wherein the fixing plate portion and the socket portion are made of rubber or plastic. Utensils. 8. A mouth injection pipe holder according to claim 1, a check valve attached to a socket part of the mouth injection pipe holder, and an injection pipe attachment part of a socket part of the mouth injection pipe holder. A mouth fill pipe comprising: an attached fill pipe. 9. A mouth injection pipe comprising: a mouth injection pipe holder according to claim 2; and an injection pipe attached to an injection pipe mounting part of a socket part of the mouth injection pipe holder. . 10. The mouth injection pipe according to claim 8, wherein the injection pipe is fixed in the injection pipe mounting portion.