JP2002364182A - Fluid injection plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid injection plug with an anchor function suited for repairing a wall face for prevention of the falling of exterior material such as mortar or tiling. SOLUTION: The fluid injection plug 1 with the anchor function comprises a pipe member 3; a nipple member 5 mounted at one end of the pipe member for introducing fluid from a source of the fluid; a check valve means 13 mounted at the other end of the pipe member for preventing the backflow of the fluid injected; an anchor member 11 rigidly securing the fluid injection plug to the portion of a fluid injection hole 36 corresponding to a concrete bed 38, and having a means 11a for causing the fluid to flow out of the fluid injection hole through an area around the plug; and a packer member 9 for securing the plug 1 to the mortar part 37 of the hole 36 under a liquid-tight condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchoring function having both an anchoring function to be used fixedly embedded in a concrete structure or the like and a packer function to prevent the injected chemical solution from leaking from a fluid injection hole. The present invention relates to a fluid injecting plug, and more particularly to a fluid injecting plug with an anchor function suitable for repairing a wall surface for preventing a fall of an exterior material such as a mortar and a tile. The present invention also relates to a fluid injecting plug having either an anchoring function fixedly used in a state buried in a concrete structure or the like or a packer function to prevent the injected chemical solution from leaking out of the fluid injecting hole, In particular, the present invention relates to a fluid injection plug suitable for repairing cracks in a concrete structure that does not require an anchor function and peeling repair of exterior materials such as mortar and tile.

[0002]

2. Description of the Related Art In recent years, concrete structures are often subjected to mortar treatment after being cast, and tiles are attached from the viewpoint of appearance. In addition, by attaching tiles, erosion from acid rain, carbon dioxide gas and the like is prevented, and at the same time, the effect of maintaining aesthetic appearance is enhanced. However, mortar and concrete, concrete and tiles are peeled off due to changes in the temperature of the four seasons, day and night, and penetration of rainwater, and the required strength is lost. In the worst case, mortar or tiles may fall or leak water. At such times, resin injection and maintenance work with metal anchors are performed.

[0003] In recent years, anchors having both functions have been developed and started to be used. For example, Japanese Patent Application Laid-Open No. 8-1282 has an injection function and an anchor function.
There is No. 10. Conventional anchor member 10 shown in FIG.
0, an anchor body 104 inserted into a fluid injection hole 136 extending from the porcelain tile 132 to the mortar part 137 and the concrete part 138; a female screw part 106 formed at the rear end of the anchor body 104; 106
And a pin 110 for expanding the distal end portion 112 by a driving movement.
08 is a flange 1 having an area covering the large-diameter opening 140.
28 are formed. The sealing member 1 is formed by screwing the closing member 108 to the rear end of the anchor body 104.
The sealing work can be performed immediately after the filling with 44, and the surface of the flange portion 128 and the surface of the porcelain tile 132 can be flush with each other by adjusting the screwing amount.

As described above, in the repair of a wall surface or the like, the rear end portion of the anchor body 104 can be sealed immediately after the sealing material 144 is filled, and the surface of the sealing portion is adjusted to be flush to improve work efficiency and appearance. The aim is to improve the quality.
However, the above-described conventional anchor has the following problems and has been demanded to be improved.

[0005]

[Problems to be Solved by the Invention] Since there is no valve provided to prevent backflow, the injection liquid is ejected by the internal pressure when the injection is completed after the anchor is fixed. 2. Since there is no packer function, the injection liquid leaks out during injection. 3. Drilling a hole in the middle of the tile makes the appearance worse. 4. Since high-pressure injection cannot be performed, the number of useless holes into which the injection liquid cannot be injected increases. Further, the injection speed cannot be increased and the working efficiency is poor. 5. If the concrete, mortar, or tiles peel off significantly, a high-viscosity adhesive must be used.

Therefore, there is a demand for the development of a fluid injection plug with an anchor function that can be injected even at a high pressure, which can also be used as an anchor after the chemical solution has hardened, in order to prevent the initial drop from falling into the high pressure injection plug. In this background: 1. Quality assurance 2. Reduction of working time 3. Reduction of labor costs. 4. Ensuring safety of injection work (prevention of leakage during injection) 5. Development of high efficiency injection equipment 6. Drilling without noise and vibration There is a need for anchor plugs, such as the need for products that can be injected from joints that do not damage the tile. In view of the above, the present inventors have conducted intensive studies in order to solve various problems of the prior art while considering the above demands. As a result, a fluid injection plug with an anchor function having both an anchor function and a packer function and an anchor function are necessary. We have developed a fluid injection plug suitable for repairing cracks in concrete structures that are not to be removed and peeling repair of exterior materials such as mortar and tiles.

[0007]

SUMMARY OF THE INVENTION To solve the above problems, the present invention provides a mortar provided on a concrete base.
In order to prevent the exterior materials such as tiles from falling, cracks, cracks, and the like are formed on the repair wall surface where a space portion such as a gap is generated by connecting the space portion to a fluid injection hole. A fluid injection plug with an anchor function used when injecting a fluid such as an adhesive, a waterproofing agent, a waterproofing agent into a space,
A pipe member, a nipple member attached to one end of the pipe member for introducing a fluid from a fluid supply source, and a non-return attached to the inside of the nipple member or the other end of the pipe member to prevent backflow of the injected fluid. An anchor member having valve means and means for tightly fixing the fluid-injection plug with an anchor at a concrete foundation portion of the fluid-injection hole and for allowing fluid to flow therethrough toward the outside of the fluid-injection hole; And a packer member for liquid-tightly fixing the fluid injection plug with an anchor function at a mortar portion of the fluid injection hole so as to prevent the fluid from flowing out to the outside of the fluid injection hole which is further increased. A fluid injection plug with an anchor function is provided.

According to a second aspect of the present invention, in the fluid injection plug with the anchor function according to the first aspect, the check valve means is provided in the nipple member, and the fluid injection plug with the anchor function further comprises: It is characterized by comprising a pressing member provided at the other end of the pipe member and pressing the anchor member against the wall surface of the fluid injection hole. According to a third aspect of the present invention, in the fluid injection plug with an anchor function according to the second aspect, the nipple member with a built-in check valve means is formed of a general-purpose grease nipple. Further, a central hole is provided with a female thread which is threaded with a male thread of a grease nipple including a cylindrical part attachable to the pipe member and a nut part having an outer surface engageable with a rotating jig such as a wrench. And a nut-shaped member. According to a fourth aspect of the present invention, in the fluid injection plug with the anchor function according to the first aspect, the check valve means is provided by a check valve member attached to the other end of the pipe member. The valve member also serves as a pressing member for pressing the anchor member against the wall surface of the fluid injection hole. According to a fifth aspect of the present invention, there is provided the fluid injecting plug with the anchor function according to the first aspect, further interposed between the nipple member and the packer member, and in close contact with a periphery of an outlet of the fluid injecting hole. It is characterized by including a flange member serving as a reference for positioning.

According to a sixth aspect of the present invention, in the fluid injecting plug with the anchor function according to the first aspect, the anchor member has a flow path formed on an outer peripheral surface thereof to allow the fluid to flow out of the fluid injecting hole. It is characterized by being constituted by a rubber sleeve member which expands radially outward by being compressed and contracted in the axial direction and is tightly fixed to the wall surface of the fluid injection hole. According to a seventh aspect of the present invention, in the fluid injecting plug with the anchoring function according to the first aspect, the nipple member is knocked at a predetermined position of the pipe member by hitting with a hitting instrument such as a hammer, and the nipple member side is the fluid with the anchoring function. A groove is formed so as to be separable from the injection plug. The invention according to claim 8 is the fluid injection plug with an anchor function according to claim 4, wherein the check valve member comprises:
A check valve body having a central hole extending in the axial direction, a lateral hole extending radially from the bottom of the central hole and communicating with the outside, and a rubber member for opening and closing the outlet of the lateral hole of the check valve body. O
And a ring.

A second aspect of the present invention is to provide a repair wall having cracks, cracks, gaps, etc., in order to prevent the exterior material such as mortar and tiles from being dropped on a concrete substrate. A fluid injecting plug used to inject a fluid such as an adhesive, a water stopping agent, and a waterproofing agent into the space through the fluid injecting hole, forming a fluid injecting hole by connecting to the space, A pipe member, a nipple member attached to one end of the pipe member for introducing a fluid from a fluid supply source, and a non-return attached to the inside of the nipple member or the other end of the pipe member to prevent backflow of the injected fluid. Valve means, and a liquid-tight fixing member for liquid-tightly fixing the fluid injection plug at a mortar portion of the fluid injection hole and injecting a fluid deeper into the fluid injection hole therefrom. Fluid injection plug To provide.

[0011] A third aspect of the present invention is to provide a repair wall having cracks, cracks, gaps or other voids in order to prevent a mortar, a tile or other exterior material provided on a concrete substrate from falling. A fluid injecting plug used to inject a fluid such as an adhesive, a water stopping agent, and a waterproofing agent into the space through the fluid injecting hole, forming a fluid injecting hole by connecting to the space, A pipe member, a nipple member attached to one end of the pipe member for introducing a fluid from a fluid supply source, and a non-return attached to the inside of the nipple member or the other end of the pipe member to prevent backflow of the injected fluid. A valve means, a tightly fixing member for tightly fixing the fluid injection plug at a concrete base portion of the fluid injection hole, and injecting a fluid deeper into the fluid injection hole therefrom; and a nip around the pipe member. Providing a fluid injection plug made is configured to include an outer sleeve member mounted between the seal member and the tightly fixing member.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fluid injection plug with an anchor function according to the present invention will be described in more detail based on the illustrated embodiment. FIG. 1 shows an embodiment of a fluid injection plug with an anchor function according to the present invention.
(A) and (b) are the sectional view and the front view, respectively. As shown in FIG. 1 (a), a fluid injection plug 1 with an anchor function according to the present invention generally includes a pipe member 3 having an external thread 3a cut on the entire outer peripheral surface, A nipple member 5 screwed to one end;
A nylon flange member 7 installed adjacent to the nipple member, a rubber cylindrical packer member 9, a metal cylindrical anchor member 11 arranged in series with the packer member 9, and a pipe member 3 and a check valve member 13 screwed to the other end.

A groove 3b having a U-shaped cross section is formed at a predetermined position of the pipe member 3 so that the nipple member 5 can be separated from the fluid injection plug 1 having the anchor function by beating and breaking by hitting a hitting device such as a hammer. ing. The groove 3b may have any configuration as long as the nipple member 5 side of the fluid injection plug 1 with an anchor function can be bent by hitting a hitting device such as a hammer. For example, section V
It can be a shape or a simple notch, and the groove in the present embodiment is a concept including such a notch.
As will be described later, after injecting the drug solution, the nipple member 5 side of the fluid injection plug 1 with an anchor function is separated by tapping and the remaining portion is tightly fixed in the fluid injection hole and used as an anchor. I do. A feature of the present invention is that, at this time, the fluid injection plug 1 with an anchor function is not only tightly fixed to the fluid injection hole at the anchor member 11 but also liquid-tightly held and fixed at the packer member 9. It is. Thus, it is possible to prevent the chemical solution from spouting out of the fluid injection hole.

The flange member 7 is interposed between the nipple member 5 and the packer member 9 and closely adheres to the periphery of the outlet of the fluid injection hole to serve as a reference for various positioning, for example, the position of the groove 3b. The packer member 9 is made of nitrile rubber (NBR) or hydrogenated nitrile rubber (HNB) which is rich in oil resistance and corrosion resistance.
R), butadiene rubber (BR), butadiene styrene rubber (SBR) and other elastic cylindrical members having a plurality of axial projections 9a and circumferential projections 9b formed on the outer peripheral surface thereof. The latter projection 9b fixes the fluid injection plug 1 with the anchor function in a mortar portion of the fluid injection hole in a liquid-tight manner so that the fluid cannot flow out further outside the fluid injection hole. In the illustrated preferred embodiment, by adjusting the distance A from the tip of the check valve body 14 to the flange member 7, the position of the packer member 9 is adjusted to be the position where the mortar is arranged.

The anchor member 11 is a cylindrical member made of metal, and has a plurality of cuts 1 open to the check valve member 13 side.
1a is formed. As a result, a plurality of skirt portions 11b whose free end sides can expand outward in the radial direction are formed. In the present embodiment, a check valve means for preventing backflow of the injected fluid is provided by the check valve member 13. The check valve member 13 also functions as a pressing member that presses the skirt portion 11b of the anchor member 11 against the wall surface of the fluid injection hole in order to tightly fix the anchor member 11 to the fluid injection hole. In the illustrated preferred embodiment,
The check valve member 13 has a central hole 14a extending in the axial direction and a radially extending 1 from the bottom of the central hole 14a to the outside.
Alternatively, the check valve main body 14 includes a plurality of lateral holes 14b, and a rubber O-ring 15 that opens and closes the outlet of the lateral hole 14b of the check valve main body 14.

A groove 14d having an arc-shaped cross section is formed around the entire circumference of the check valve body 14 so as to cross the outlet of the lateral hole 14b of the check valve body 14.
It is mounted inside d. Therefore, the O-ring 15 is in surface contact with the groove 14d for sealing, and the sealing at the outlet of the lateral hole 14b is almost completed. That is,
Since the O-ring 15 and the groove 14d are in surface contact with each other at the exit of the lateral hole 14b, it can be almost completely sealed even when a filler such as a reinforcing fiber is contained. The pipe member 3 side of the check valve body 14 has a conical surface 14c. Then, by tightening the nipple member 5 into the pipe member 3 to pull the check valve body 14 relatively toward the nipple member 5, the conical surface 14 c becomes the anchor member 1.
The first skirt portion 11b is pushed outward. As a result, the skirt portion 11b bites into the surface of the fluid injection hole, and the fluid injection plug 1 with the anchor function is tightly and firmly attached.
Is fixed to the hole for fluid injection. When the check valve body 14 is relatively drawn toward the nipple member 5 by tightening the nipple member 5 into the pipe member 3, the packer member 9 is also contracted in the axial direction and thereby radially outward. Expands. As a result, the packer member 9 is fixed and held in the fluid injection hole in a liquid-tight manner. In the illustrated preferred embodiment, a washer 17 is interposed between the packer member 9 and the anchor member 11.

In the embodiment shown in FIG. 2A, a ball valve member 19 is used as the check valve means instead of the check valve body 14. The ball valve member 19 is an improvement of a conventionally known one, and has a center hole 19 formed by a spring 19a.
The ball 19c is pressed against b to form a check valve. The outer peripheral surface of the ball valve member 19 on the nipple member 5 side is a conical surface 19d like the conical surface 14c of the check valve body 14. Since the function of the ball valve member 19 is basically the same as that of the check valve member 13, the detailed description thereof will be omitted. In the embodiment shown in FIG. 2B, a rubber packer member 9 is used instead of the anchor member 11 (skirt portion 11b) of the fluid injection plug 1 with an anchor function shown in FIG. In the field sense using the fluid injecting plug 1 having the anchor function, it is better that the skirt portion 11b, which is a metal member, is pushed outward by the check valve member 13 and tightly fixed, so that the rubber packer member 9 is moved in the axial direction. Tend to feel more stiff than by compressing it, thereby expanding radially outwards. The result of the experiment shows that the rubber packing member 9 can be fixed more tightly. Reference numeral 12 denotes a metal pipe mounted between the pair of packer members 9.

The embodiment shown in FIG.
In the fluid injection plug 1 with an anchor function shown in (b), the check valve means is provided in the nipple member. In the case of this embodiment, since the check valve means including the ball 5a and the spring 5b is provided inside the nipple member 5, the check valve member 13 becomes unnecessary. Then, the second function of the check valve member 13, that is, the second packer member 9 is compressed in the axial direction and expanded radially outward to be pressed against the wall surface of the fluid injection hole, particularly, a concrete part. A member 21 is provided. Reference numeral 12 denotes a metal pipe mounted between the pair of packer members 9. The embodiment shown in FIG. 2 (d) is a case where the check valve means is provided in the nipple member in the fluid injection plug with anchor function 1 shown in FIG. In this embodiment, the ball 5
Since the check valve means including the valve member a and the spring 5b is provided inside the nipple member 5, the check valve member 13 becomes unnecessary. And the second function of the check valve member 13, namely,
A pressing member 23 is provided to push the skirt portion 11b of the anchor member 11 outwardly in the axial direction and press the skirt portion 11b against the wall surface of the fluid injection hole, particularly, on a concrete portion. The outer peripheral surface of the pressing member 23 is a conical surface 23 a like the conical surface 14 c of the check valve body 14.

Next, a method of using the fluid injection plug 1 with an anchor function according to the present invention will be described with reference to FIGS. The fluid injection plug 1 with an anchor function according to the present invention can be used, for example, as a joint packer used for repairing a tiled surface of a concrete building. Tiles 32 constituting the concrete wall surface 34
A fluid injecting hole 36 is formed at the intersection (outside the corner of the tile) of the joint 33 filled in between, and the fluid injecting plug 1 with an anchor function is inserted into the fluid injecting hole 36. The fluid injection hole 36 penetrates the joint 33 and the mortar portion 37 to reach the concrete portion 38.
For example, a space portion 39 is formed between the mortar portion 37 and the concrete portion 38 to form a space portion, and an adhesive is injected into the space portion 39.

The fluid injection plug 1 with an anchor function shown in FIG. 1 is inserted into the fluid injection hole 36 (FIG. 3).
(See (a)). With the flange member 7 in contact with the outlet of the fluid injection hole 36, a wrench and a wrench are engaged with the nipple member 5 to rotate the nipple member 5 in the tightening direction. Here, an axial projection 9a protruding laterally on the outer peripheral surface of the packer member 9 of the fluid injection plug 1 with an anchor function comes into contact with the wall surface of the fluid injection hole 36 and functions as a detent function. Thereby, the so-called "idle running" in which the nipple member 5 and the pipe member 3 rotate together can be reliably prevented.

The pipe member 3 is screwed into the nipple member 5 and draws a check valve member 13 provided at the other end in the direction of the nipple member 5. As a result, the skirt portion 11b of the anchor member 11 is pushed and spread outward in the radial direction,
Connect the fluid injection plug 1 with anchor function to the concrete part 3
8 and tightly fixed to the wall surface of the fluid injection hole 36. Further, when the nipple member 5 is tightened, the packer member 9 is compressed in the axial direction via the anchor member 11, and the packer member 9 is expanded in a barrel shape. Thus, the outer surface of the packer member 9 and the fluid injection hole 36 are fixed and held in a liquid-tight manner at the mortar portion 37.

A nozzle of a high-pressure pump is fitted into a nipple member 5 which is a tip of the fluid injection plug 1 with an anchor function, and an adhesive, a water blocking agent, and the like are injected at high pressure. The injected chemical solution passes through the screw nipple member 5 and the pipe member 3 and passes through the check valve member 13.
The central hole 14a and the lateral hole 14 of the check valve body 14
b. The liquid that has entered the lateral hole 14b of the check valve body 14 expands the O-ring 15 and is discharged to the outside of the check valve body 14. The chemical solution injected into the fluid injection hole 36 further flows back toward the outlet of the fluid injection hole 36 via the plurality of cuts 11a of the anchor member 11.

However, the back-flowing chemical is blocked at the position of the packer member 9 and does not leak out of the fluid injection hole 36. The chemical solution is also supplied to the mortar part 37
Into the space 39 formed between the mortar 37 and the concrete part 38. According to the fluid injection plug 1 with an anchor function of the present invention, the anchor member 11 is tightly fixed at the wall of the fluid injection hole 36, particularly at the portion of the concrete portion 38 having a large structural strength. Therefore, even if a chemical solution is injected at a high pressure into the fluid injection plug 1 with the anchor function, there is no possibility that an accident such as the fluid injection plug 1 with the anchor function falling off from the fluid injection hole 36 will occur. Since the high-pressure injection can be performed, even when the space in the space portion 39 is small, the chemical liquid can be surely penetrated.

When the filling is completed, the nozzle from the high-pressure pump is removed from the nipple member 5. When the nozzle is removed, the internal pressure of the fluid injection plug 1 with the anchor function decreases, and the O-ring 15 closes the lateral hole 14b of the check valve member 13 with a large elastic force. Without waiting for the chemical solution to cure (usually 5 to 40 hours)
The nipple member 5 protruding from the concrete wall surface 34 is broken with a hammer (see FIG. 3C). Since the pipe member 3 is formed with the groove 3b having reduced mechanical strength, the nipple member 5 side can be easily separated.
If necessary, a joint material 40 is applied so that the concrete surface becomes flat, and surface treatment is performed (see FIG. 3D).

As a result, productivity is increased. Adverse effects on high-pressure injection (leakage, backflow, waiting time for adhesive to harden, etc.)
Disappears. Even materials containing fibrous reinforcing agents can be used for all chemicals without any problems. Because of low inflow resistance, it can be used for subtle injection at low pressure. Also, since a small diameter one can be easily manufactured, the fluid injection hole 36 can be drilled and repaired at the joint 33 instead of the tile 32, which has an advantage that the appearance is improved. It has the advantages of all or any of these or combinations thereof.

Next, another embodiment of the fluid injection plug with an anchor function according to the present invention will be described with reference to FIGS. 4 (a) and 4 (b). The fluid injection plug with an anchor function 50 according to the present embodiment is a further improvement of the fluid injection plug with an anchor function shown in FIG. 3D described above. In this embodiment, a general-purpose grease nipple 51 and a nut-like member 52 are used instead of the nipple member 5 and the flange member 7 used in the fluid injection plug with an anchor function shown in FIG. Pressing member 23
Is characterized in that a check valve member 13 excluding the O-ring 15 is used instead of. Note that the same components as those of the fluid injection plug with an anchor function shown in FIG. 3D are denoted by the same reference numerals, and detailed description thereof will be omitted (hereinafter the same).

The nut-shaped member 52 includes a cylindrical portion 52a screwed to the pipe member 3 and a nut portion 52b having an outer surface engageable with a rotary jig such as a wrench. A central hole 52c is provided at the center of the nut-shaped member 52 so as to penetrate in the axial direction, and a female screw 52d screwed with the male screw 51a of the grease nipple 51 is cut. Reference numerals 17 and 18 are washers and toothed washers, which are also general-purpose products. In this embodiment, the manufacturing cost can be drastically reduced by using the same parts as those in the above-described various examples or general-purpose products.

Next, an embodiment of the fluid injection plug according to the second aspect of the present invention will be described with reference to FIG. This embodiment relates to a fluid injection plug having a packer function for preventing the injected chemical solution from leaking from the fluid injection hole, and in particular, for repairing cracks inside a concrete structure and mortar, tile and other exterior materials such as tiles, which do not require an anchor function. The present invention relates to a fluid injection plug suitable for peeling repair.

The fluid injection plug 60 according to the present embodiment is mounted on the pipe member 3, a nipple member 62 attached to one end of the pipe member for introducing a fluid from a fluid supply source, and mounted inside the nipple member to be injected. A check valve mechanism for preventing backflow of the fluid, and the fluid injection plug 60 is fixed in a fluid-tight manner at a portion of the mortar 37 of the fluid injection hole 36, and the fluid is injected further into the fluid injection hole. And a packer member 9. In the preferred embodiment shown, the nipple member 62 and the check valve mechanism are provided by a universal grease nipple 51 and nut-like member 52 shown in FIG. By sharing parts, manufacturing costs and parts storage costs are reduced, and maintenance is facilitated. A pressing member 21 similar to that shown in FIG. 2C is screwed to the other end of the pipe member 3. At both ends of the packer member 9, a washer 17 and a toothed washer 18 are provided, respectively.

When a rotary jig such as a spanner or a wrench is fitted into the nut portion 52b of the nut-like member 52 and rotated, the nut-like member 52 is screwed into the pipe member 3 and relatively moves toward the male pressure member 21. . Thereby, the packer member 9 is compressed in the axial direction, and as a result, the packer member 9 expands radially outward, and the wall surface of the fluid injection hole 36, particularly,
It is pressed against the mortar 37 and fixed in a liquid-tight manner.

Next, an embodiment of the fluid injection plug according to the third aspect of the present invention will be described with reference to FIG. The present embodiment relates to a fluid injection plug having a packer function that is fixedly used in a state buried in a concrete structure or the like, and particularly to a fluid injection plug suitable for repairing a crack inside a concrete structure that does not require an anchor function.
The fluid injection plug 70 according to the present embodiment includes the pipe member 3
A nipple member 5 attached to one end of the pipe member for introducing a fluid from a fluid supply source; a check valve mechanism provided inside the nipple member; A packer member (functionally used as a packer) 9, which is a tight fixing member for tightly fixing the plug and injecting a fluid deeper into the hole for fluid injection therefrom, and around the pipe member 3 and An outer sleeve member 74 is provided between the nipple member 5 and the packer member 9.

The nipple member 5 is the same as the nipple member 5 in FIG. 2C, and is a common component in which a rotating jig such as a spanner or a wrench is fitted and rotated, and a nut portion is long in the axial direction. In the illustrated preferred embodiment, the packer member 9
Is axially compressed, and the packer member 9 is expanded radially outward, so that the wall surface of the fluid injection hole 36, in particular,
A check valve member 13 shown in FIG. 2B is used as a male pressure member that is pressed against a portion of the concrete 38 and fixed tightly.
It is used without the O-ring 15. In this embodiment,
Since it is configured using only common parts such as the pipe member 3, the nipple member 5, the packer member 9 and the check valve member 13 and the outer sleeve member 74 which can be obtained at a low cost with a simple configuration, the manufacturing cost and the parts cost are reduced. Storage costs are reduced and maintenance is facilitated.

Next, With reference to FIG. 7, a description will be given of a chemical solution injection method of wall repair by a progressive feeding method using the fluid injection plug 50 with an anchor function shown in FIG. 4 and the fluid injection plug 60 shown in FIG. These chemical liquid injection methods perform the method of using the fluid injection plug with an anchor function shown in FIG. 3 so that the mortar 37 is firmly fixed and held on the concrete 38 or in parallel with such a method of use. It is used. That is,
In locations where the anchor function is considered important,
-Fluid injection plug 1 with anchor function shown in FIG.
50 is used to repair the wall. On the other hand, in locations where such an anchoring function is not considered important, wall repairs are performed using fluid injection plugs 60, 70 as shown in FIGS. 5 and 6, which can be manufactured more cheaply. This makes it possible to perform inexpensive and more efficient wall repair.

First, a floating portion 39a and a crack 3 were added to a reinforced concrete building having mortar 37 applied to the surface.
9b, a hollow 39c around the reinforcing bar formed around the reinforcing bar 31
Exist, and an adhesive is injected into these spaces. Fluid injection holes 36 are formed at substantially constant intervals in the vertical and horizontal directions on the wall surface 34 coated with the mortar 37. For example, a fluid injection plug 50 with an anchor function shown in FIG. 4 and a fluid injection plug shown in FIG. 60 is inserted into the fluid injection hole 36. The feature of this method is the general-purpose grease nipple 5
1 is to remove it. Then, the grease nipple 51 is attached to the lowermost fluid injection plug 50 having an anchor function.
Is attached, the nozzle of the high-pressure pump is fitted, and an adhesive or a water-stopping agent is injected at a high pressure.

When the liquid medicine leaks from the fluid injection plug 50 with the anchor function attached to the upper fluid injection hole 36, the chemical liquid flows into the fluid injection plug 50 with the anchor function attached to the lower fluid injection hole 36. Stop supply. The nozzle of the high-pressure pump is removed from the upper fluid injection plug 50 with the anchor function, and the grease nipple 5 is connected to the fluid injection plug 50 with the anchor function from which the chemical solution has leaked.
1 is attached and replaced, and a chemical solution is injected at a high pressure.
When the chemical liquid leaks out of the fluid injection plug 50 with the anchor function attached to the fluid injection hole 36 further above, the supply of the chemical liquid to the fluid injection plug 50 with the anchor function is stopped. Hereinafter, similarly, it sequentially moves to the upper fluid injection plug 50 with an anchor function.

In the upper three fluid injection holes 36 in FIG. 7, a fluid injection plug 60 shown in FIG.
1 is removed. If the mortar 37 and the concrete 38 are not required to be firmly held, it is sufficient that the mortar 37 and the concrete 38 can be manufactured at a low cost with a simple structure. The construction method is the same as that of the fluid injection plug 50 with an anchor function, and therefore, detailed description is omitted. Then, after the curing time of the chemical solution has elapsed (usually 5 to 40 hours), the nipple member protruding from the concrete wall surface 34 is broken with a hammer. In the pipe member 3,
Since the groove 3b having weakened mechanical strength is formed,
The nipple member 5 side can be easily separated. If necessary, apply a joint material so that the concrete surface becomes flat and perform surface treatment.

[0037]

According to the present invention, (1) since the mortar portion is held and fixed in a liquid-tight manner by a packer and the concrete portion is made to act as an anchor, high-pressure injection becomes possible, and leakage of the aesthetic appearance is impaired. Don't worry. (2) Since it has a packer function, it is possible to slowly inject a chemical solution at a pressure of 10 MPa or more and to eliminate or drastically reduce useless holes. According to experiments, 7
When held at MPa for 15 seconds, the chemical solution passed and the useless holes disappeared. (3) Since it is a tightening type fluid injection plug with an anchor function, the hole diameter error of the fluid injection hole can correspond to plus or minus 0.2 mm. In the above-mentioned conventional anchor, plus or minus 0.1 m
m. (4) Since a product having a diameter of 6 mm for a fluid injection plug with an anchor function can also be manufactured, a hole for fluid injection can be formed in a joint portion of a tile to perform repair. Thus, repair can be performed without impairing the appearance.

(5) Even after construction, post-processing can be easily performed by hammer cutting. That is, the post-processing is completed only by filling in some dents formed in the joint. (6) The remainder of the fluid injection plug with an anchor function left inside the fluid injection hole is as follows:
It has a function as an embedded anchor as it is, and can securely and semi-permanently hold mortar and tile. (7) The construction time can be reduced to less than half of the conventional one, and the work efficiency has been dramatically improved. As a result of the experiment, the use of a high-pressure pump has achieved three times the work efficiency. Specifically, conventionally, 300 to 40 per worker
Repair was possible at 0 locations / day, but at 1300 locations / day.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a fluid injection plug with an anchor function according to the present invention, wherein (a) and (b) are a cross-sectional view and a front view thereof.

FIGS. 2A to 2D are cross-sectional views illustrating other embodiments of the fluid injection plug with an anchor function according to the present invention.

3 (a) to 3 (d) are cross-sectional views showing respective steps of a method for using the fluid injection plug with an anchor function according to the present invention shown in FIG. 1;

FIG. 4 is a view showing another embodiment of the fluid injection plug with an anchor function according to the present invention, wherein (a) and (b) are a front view and a cross-sectional view thereof.

FIG. 5 is an exploded view showing one embodiment of a fluid injection plug according to the second aspect of the present invention.

FIG. 6 is an exploded view showing one embodiment of a fluid injection plug according to a third aspect of the present invention.

FIG. 7 is a schematic cross-sectional view for explaining a chemical solution injection method of wall repair by a progressive feed method using the fluid injection plug with an anchor function shown in FIG. 4 and the fluid injection plug 60 shown in FIG. .

FIG. 8 is a sectional view showing an example of a conventional injection member having an anchor function.

[Explanation of symbols]

Reference Signs List 1 fluid injection plug with anchor function 3 pipe member 3a external thread 3b groove 5 nipple member 7 flange member 9 packer member 11 anchor member 11a cut, 11b skirt portion 13 check valve member 14 check valve body 14a central hole, 14b side hole 15 O-ring 17 washer 18 toothed washer 19 ball valve member 21 pressing member 23 pressing member 32 tile 33 joint 34 concrete wall surface 36 fluid injection hole 37 mortar part 38 concrete part 39 space part 40 joint material

Claims (10)

[Claims] 1. In order to prevent a fall of an exterior material such as mortar and tile provided on a concrete base, a fluid is connected to a repair wall surface where a space such as a crack, a crack or a gap is generated. Forming a hole for injection, a fluid injection plug with an anchor function used when injecting a fluid such as an adhesive, a water blocking agent, a waterproofing agent into the space through the hole for fluid injection, and a pipe member; A nipple member attached to one end of the pipe member for introducing a fluid from a fluid supply source; and a check valve attached to the inside of the nipple member or the other end of the pipe member for preventing backflow of the injected fluid. Means for tightly fixing the fluid injection plug with an anchoring function at a concrete foundation portion of the fluid injection hole, and for allowing fluid to flow out of the fluid injection hole through the periphery thereof. An anchor member having a step, and a packer member for liquid-tightly fixing the fluid injection plug with an anchor function at a mortar portion of the fluid injection hole so as to prevent fluid from flowing out of the fluid injection hole to be further extended. And a fluid injection plug with an anchor function, comprising: 2. The fluid injecting plug with an anchor function according to claim 1, wherein the check valve means is provided in the nipple member, and the fluid injecting plug with an anchoring function is further provided on the pipe member. A fluid injection plug with an anchor function, comprising a pressing member provided at the other end and pressing the anchor member against the wall surface of the fluid injection hole. 3. The fluid injection plug with an anchor function according to claim 2, wherein the nipple member with a built-in check valve means is formed of a general-purpose grease nipple, and the fluid injection plug with an anchor function further comprises: A grease nipple having a female threaded central hole including a cylindrical portion attachable to the pipe member and a nut portion having an outer surface engageable with a rotating jig such as a wrench. A fluid injection plug with an anchor function, comprising a nut-shaped member. 4. The fluid injection plug with an anchor function according to claim 1, wherein said check valve means is provided by a check valve member attached to the other end of said pipe member. Is also a pressing member for pressing the anchor member against the wall surface of the fluid injection hole. 5. The fluid injection plug with an anchor function according to claim 1, further comprising a space between the nipple member and the packer member, which is closely attached to a periphery of an outlet of the fluid injection hole to perform various positioning. A fluid injection plug with an anchor function, characterized in that it comprises a reference. 6. The fluid injecting plug with an anchoring function according to claim 1, wherein the anchor member has a flow passage formed on an outer peripheral surface thereof to allow the fluid to flow out of the fluid injecting hole, and is pushed in the axial direction. A fluid injection plug with an anchor function, comprising a rubber sleeve member which expands radially outward by contraction and is tightly fixed to the wall surface of the fluid injection hole. 7. The fluid injecting plug with an anchoring function according to claim 1, wherein the pipe member is knocked and folded at a predetermined position by a striker such as a hammer to strike the nipple member from the fluid injecting plug with the anchoring function. A fluid injection plug with an anchor function, characterized by forming a separable groove. 8. The fluid injection plug with an anchor function according to claim 4, wherein the check valve member has a central hole extending in the axial direction and a lateral hole extending radially from the bottom of the central hole and communicating with the outside. A fluid injection plug with an anchor function, comprising: a check valve main body provided; and a rubber O-ring that opens and closes an outlet of a lateral hole of the check valve main body. 9. In order to prevent the exterior material such as mortar and tile provided on the concrete base from dropping, the fluid is connected to the repaired wall surface where a space portion such as a crack, a crack or a gap is generated. A fluid injection plug for forming an injection hole and injecting a fluid such as an adhesive, a water blocking agent, or a waterproofing agent into the space through the fluid injection hole, the pipe member comprising: a pipe member; A nipple member attached to one end of the nipple for introducing a fluid from a fluid supply source; a check valve means attached to the inside of the nipple member or the other end of the pipe member to prevent backflow of the injected fluid; A fluid-tight fixing member for liquid-tightly fixing the fluid-injection plug at a mortar portion of the fluid-injection hole, and injecting a fluid deeper into the fluid-injection hole therefrom; . 10. In order to prevent the exterior material such as mortar and tiles provided on the concrete base from dropping, a fluid is connected to the repaired wall surface where a space such as a crack, a crack or a gap is generated. A fluid injection plug for forming an injection hole and injecting a fluid such as an adhesive, a water blocking agent, or a waterproofing agent into the space through the fluid injection hole, the pipe member comprising: a pipe member; A nipple member attached to one end of the nipple for introducing a fluid from a fluid supply source; a check valve means attached to the inside of the nipple member or the other end of the pipe member to prevent backflow of the injected fluid; A tightly-fixing member for tightly fixing the fluid injection plug at a concrete foundation portion of the fluid injection hole, and injecting a fluid deeper into the fluid injection hole therefrom; and Fluid injection plug formed is configured to include a, an outer sleeve member mounted between the tightly fixing member and ripple member.