JPH10306594A - Repairing material injector for injecting repairing material into crack of concrete structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repairing material injector reducing a grounding area of a pedestal to be adhered to a concrete surface smaller than conventionally without installing another part such as an injection port of a repairing material on an elastic member to store the repairing material. SOLUTION: A repairing material injector is constituted of an injection container 1 provided with a through hole 12 on a cylindrical body and an injection cover 4 having an injection tube 6 the head end part of which is provided in a blocked state and is provided with an extraction port 7. An elastic cylindrical body 10 is installed by screwing and connecting the injection cover 4 to the injection container 1 by installing a tube 9 on the injection tube 6 and fixing both ends on an outer peripheral part of the injection container 1. A flange type pedestal 3 is formed on a bottom part of the injection container 1, and a cover 20 is applied on the injector. The injector is stored between the elastic cylindrical body 10 and a cylindrical body 2 by adhering the pedestal 3 on a cracked part 31 of a concrete structure 30 and injecting resin from the injection cover 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair material pouring tool for pouring a repair material such as resin into cracks generated in a concrete structure.

[0002]

2. Description of the Related Art As an example of a repair material injecting tool for injecting a repair material such as resin into cracks generated in a concrete structure, Japanese Patent Application Laid-Open No. 6-42195 is known. In the present invention, as shown in FIG. 8, the injection port 20 for the repair material is provided in the elastic sheet 12, so that the direction of the injection port 20 changes with the deformation of the elastic sheet 12 at the time of injection of the repair material. There is a problem that the injection work of the is difficult,
Since the inlet 20 is attached to the elastic sheet 12, there is a problem that the manufacturing cost is increased.

The inventor of the present application has proposed the invention of Japanese Patent Laid-Open No. 9-32308 to solve the above problems. FIG. 9 shows a structure of the present invention, in which an injection portion of the repair material is provided on the peripheral edge of the pedestal 1, and this injection portion and the lower surface of the elastic sheet 9 are communicated with each other through an injection path 2 provided in the pedestal 1. Thus, the injection port of the repair material is removed from the elastic sheet 9. As a result, there is an advantage that the work of injecting the repair material becomes easy, and that the production becomes easy because the elastic sheet is directly incorporated.

However, in the structure shown in FIG.
In addition, since the injection path 2 for the repair material is provided, the mold for manufacturing the pedestal becomes complicated and the cost is not necessarily reduced.

[0005] In addition, in the case of this type of pouring tool using a disc-shaped pedestal, including the above-mentioned two conventional examples, since the grounding area on the concrete surface is large, it remains on the concrete surface after the pouring operation. There is a problem that it takes time to clean the sticking marks on the pedestal. Therefore, it is desirable that the pedestal to be attached to the concrete surface be as small as possible.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a pedestal which is attached to a concrete surface without attaching other parts such as an inlet for the repair material to an elastic member for storing the repair material. An object of the present invention is to provide a repair material injecting tool having a smaller contact area than a conventional one.

Another problem to be solved by the present invention is to inject a repair material which is attached to the outside of the elastic cylinder housing the repair material to prevent accidents such as rupture of the elastic cylinder. It is intended to provide tools.

Another object to be solved by the present invention is to provide a repair material injection which can interrupt the injection of the resin when the resin leaks from an incomplete portion of the putty seal applied to the cracked portion during the injection of the resin. It is intended to provide tools.

[0009]

Means for solving the problems in the present invention are: an injection container having a cylindrical body having a through hole in the cylindrical body; A lid member having an injection pipe provided with an outlet, the lid member is attached to a tube so that the injection port is closed to the injection pipe, and screwed into the cylindrical body of the injection container,
The outer peripheral portion of the cylindrical body is covered with a through hole and both ends are fixed to the cylindrical body, and an elastic cylindrical body is attached.The injection container is provided at the bottom of the cylindrical body. And a flange-shaped pedestal is formed on the base. The elastic cylindrical body has both ends fixed to the cylindrical body of the injection container by fasteners.In addition, a cover, preferably a transparent material, is attached to the outside of the assembled injection tool. It is characterized in that it is.

Another solution is characterized in that a body or a valve for opening and closing a through hole of a cylindrical body is provided on a lid member so that the amount of resin to be discharged can be controlled.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 4 show a first embodiment, in which 1 is an injection container comprising a cylindrical body 2 and a flange-shaped pedestal 3 formed at the lower end of the cylindrical body 2. FIG. It is configured. Reference numeral 4 denotes a lid member, which is constituted by a lid body 5 and an injection pipe 6 extending axially at a lower end of the lid body 5. The injection pipe 6 has an injection port 6a opened in the lid 5, the tip is formed in a closed state, and a spout 7 is provided near the tip. On the other hand, in the vicinity of the base end of the injection tube 6, a bulging portion 8 that protrudes annularly outward is formed.

A female screw portion 2a is provided at the upper end opening of the cylindrical body 2 of the injection container 1, and a male screw portion 5a is provided at the lower end of the lid 5 of the lid member 4. Injection tube 6
Into the cylindrical body 2 from the cylindrical body 2 side, and
a and the female screw portion 2a are screwed together. Note that the lid 5 is formed with a knurl on the periphery or a flat square shape to facilitate rotation.

Reference numeral 9 denotes a tube made of rubber or the like mounted on the injection tube 6, the base end of which is mounted on the bulging portion 8, and the distal end having a length protruding from the distal end of the injection tube 6. The spout 7 opened in the injection tube 6 is always kept closed. Reference numeral 10 denotes an elastic cylinder made of silicone rubber or another elastic material mounted on the outer peripheral surface of the cylindrical body 2, both ends of which are fixed to the cylindrical body 2 by fasteners 11.

Reference numeral 12 denotes a through hole for a repair material provided on the wall surface of the cylindrical body 2 of the injection container 1, which is opened at a position close to the pedestal 3 in the embodiment, but the opening position is not particularly limited.

Reference numeral 20 denotes a cover for preventing an accident such as a rupture of the elastic cylinder 10. The cover 20 is attached to the outside of the entire injection device, and the cover main body 21 formed in a cylindrical shape has a top plate 22 but is open without a bottom plate, and an insertion hole 23 is opened in the top plate 22. Have been.
Since the cover main body 21 covers the injection container 1 stuck to the concrete structure 30, the diameter of the cover main body 21 is larger than the diameter of the pedestal 3 and is formed at a height capable of storing the lid member 4 in an assembled state. When the cover 20 is covered, the cover main body 21 and the elastic cylindrical body 10 before storing the repair material are
It is necessary that a sufficient gap is formed between them.

The first embodiment has the above structure. First, in order to assemble the injection tool, the tube 9 is attached to the injection tube 6 of the cover member 4, and then the injection tube 6 is inserted into the cylindrical body 2, and the male screw is inserted. The portion 5a is screwed to the female screw portion 2a of the tubular body 2.
An elastic cylinder 10 is mounted on the outer periphery of the cylinder 2. The elastic cylindrical body 10 is fixed at both ends by fasteners 11.

Next, the pouring tool is attached to the cracked portion 31 of the concrete structure 30. The injection port 3a formed in the pedestal 3 of the injection container 1 is brought into contact with the cracked portion 31 of the concrete structure 30, the pedestal 3 is bonded and fixed, and the fixed injection tool is covered with the cover 20. Next, the resin is injected into the injection pipe 6 from the injection port 6a opened in the lid 5 through the insertion hole 23 of the top plate 22. The resin is pushed into the cylindrical body 2 by pushing and expanding the tube 9 from the outlet 7 of the injection pipe 6, and is discharged to the outside of the cylindrical body 2 through the through hole 12 to expand the elastic cylindrical body 10. It is housed between the elastic cylinder 10 and the outer peripheral portion of the cylinder 2.

For the sake of explanation, the cracked portion 31 is exaggerated in the drawing, but the actual cracked portion is literally a streak-like crack state. In order to prevent the resin injected into the cracked portion 31 from the injection tool from leaking to the surface of the concrete structure 30, as shown in FIG. 3
A putty seal 32 having a width of 30 to 50 mm and a thickness of 2 to 3 mm is applied along 1.

The resin injected into the elastic cylinder 10 is filled into the crack 31 of the concrete structure from the through hole 12 through the injection port 3a by the restoring force of the elastic cylinder 10. Since the spout 7 of the injection tube 6 is closed by the tube 9, the resin does not flow back to the lid 5.

As shown in FIG. 2, the resin is filled into the cracked portion 31 at a slow speed from the elastic cylinder 10 swelled with the resin. When the putty seal applied to the surface of the structure 30 is incomplete or the resin leaks from the surface of the cracked portion, the supply of the resin to the elastic cylinder 10 is stopped. At this time, the lid member 4 is removed to remove the resin in the injection container 1 and the like, and the cracked portion 3 is removed from the elastic cylinder 10.
1 so that the resin is not pressed into it.

In the first embodiment, FIGS.
Is shown covering the entire injection device, but in the embodiment of FIG. 4, the cover 120 is shown as being assembled between the injection container 1 and the lid member 4. Here, the cover 120 is put on the cylindrical body 2 of the injection container 1, and the injection pipe 6 of the lid member 4 is inserted into the cylindrical body 2 through the insertion hole 123 of the top plate 122,
The cover 120 is fixed by screwing the injection container 1 and the lid member 4 together.

Accordingly, for example, even when the surface of the concrete structure to which the pouring tool is attached is vertical,
The cover 120 does not fall off the injector.
However, it goes without saying that the injection device can be constituted by the injection container 1 and the lid member 4 without using the covers 20 and 120.

FIG. 5 shows a second embodiment. In the second embodiment, a body 205b is formed on a cover member 204 adjacent to a male screw portion 205a provided at a lower end portion of a cover 205, and a through hole 2 provided in a cylindrical body 202 of an injection container 201 is formed.
Reference numeral 12 is provided near the female screw portion 202a formed at the upper end.

The injecting device is configured such that the lid 205 of the lid member 204 protrudes from the cylindrical body 202 and the body 205b is located above the through hole 212, so that the through hole 212 is open. (FIG. 5A). If the resin leaks from the cracked part during the injection of the resin,
Immediately, the operation of injecting the oil into 01 is stopped, the cover 205 is rotated to push down the cover member 204, and the through hole 212 is closed by the body 205b (FIG. 5B). Thereby, the elastic cylinder 10
Can be prevented from being pressed into the cracked portion from the injection port 203a.

FIG. 6 shows a third embodiment. In the third embodiment, a valve 313 that opens and closes the through hole 12 is provided at the lower end of the injection pipe 306. The valve body 313 has a disk shape having a diameter substantially equal to the inner diameter of the cylindrical body 2, and has a wall portion 314.
And a hole 315 are alternately formed at a phase of 90 degrees, and a core rod 316 provided at the top is press-fitted and fixed to the tip of the injection tube 306 so as to be integrated with the injection tube 306. The core rod 316 may be used as a screw shaft, and a female screw may be formed at the distal end of the injection tube 306 to connect the two with the screw.

The injection container 1 may be the same as that of the first embodiment. Before fixing the valve body 313 to the injection pipe 306, the tube 9 is attached to the injection pipe 306. When the resin is injected into the injection container 1, the through hole 12 of the cylindrical body 2 and the valve body 3
13 is assembled so that the through-hole 12 is opened so as to match the hole 315 of FIG. 13 (FIG. 6A). When the resin leaks, the cover member 304 is rotated to rotate the wall portion 314 of the valve body 313.
This closes the through hole 12 (FIG. 6B).

Although the second and third embodiments have been described with the cover omitted, it is needless to say that the cover is not used as shown in FIG.
0,120 can be used.

In the example, the injection device was formed of plastic, the diameter of the pedestal was about 3 cm, and the height of the entire injection device was about 5 cm. Further, although the fastener is not specified, a jig commonly referred to as hell fastening is used. The cover 20 is desirably formed of a transparent resin so that the state of injection of the repair material or the swollen elastic cylinder 10 can be monitored.

In addition, the pouring tool is a concrete structure 30.
When the cracks are elongated, it is preferable to install the injection tools at intervals of 30 to 40 cm.

[0030]

As described above, according to the present invention, the flow of the resin at the time of injecting the resin is performed without attaching any other component such as the injection port to the elastic member for accommodating the repair material, and since the entire structure is formed in a cylindrical shape. It is possible to reliably fill the cracks of the concrete structure with resin.

Further, since the injection container and the lid member are detachably screwed to each other, it is necessary to inspect the inside of the injection tool when injecting the resin, or when there is a danger of the elastic cylinder exploding for some reason. By removing the lid member, the inside of the container can be inspected or the danger can be eliminated.

In addition, since the injection tool is covered with a cover, when the cover is made of a transparent material, the state of swelling of the elastic cylinder when housing the resin can be monitored, and excessive injection and cracks can be prevented. A burst accident of the elastic cylinder at the time of filling can be prevented.

Further, in the present invention, since the lid member is provided with a body or a valve body for opening and closing the through hole of the cylindrical body, the incomplete portion of the putty seal applied to the cracked portion during the injection of the resin. If the resin leaks from the concrete structure, the injection of the resin can be interrupted, so that the resin can be prevented from flowing out to the surface of the concrete structure.

[Brief description of the drawings]

FIG. 1 is an overall sectional view showing a first embodiment.

FIG. 2 is a sectional view showing a use state of the first embodiment.

FIG. 3 is a perspective view of components of the first embodiment.

FIG. 4 is a sectional view showing another first embodiment.

FIG. 5 is a sectional view showing a second embodiment.

FIG. 6 is a sectional view showing a third embodiment.

FIG. 7 is a front view showing a state where the pouring tool is attached to a concrete structure.

FIG. 8 is a sectional view showing a conventional technique.

FIG. 9 is a sectional view showing another conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Injection container 2 Cylindrical body 3 Pedestal 4 Lid member 5 Lid 6 Injection pipe 7 Outlet 8 Swelling part 9 Tube 10 Elastic cylindrical body 11 Fastener 12 Through hole 20 Cover 21 Cover main body 22 Top plate 23 Insert hole 30 Concrete Structure 31 Crack

Claims (11)

[Claims] 1. An injection container (1) having a tubular body (2) formed in a tubular body and having a through hole (12) in the tubular body, and a tube formed in a tubular body having a closed end. It comprises a lid member (4) having an injection pipe (6) provided with a spout (7) on the body, and the lid member (4) is closed to the injection pipe (6) so that the spout (7) is closed. A tube (9) is attached to the container, and the tube (9) is detachably fixed in the cylindrical body (2) of the infusion container (1). The outer periphery of the cylindrical body (2) covers the through hole (12). A repair material injecting tool for injecting a repair material into a crack in a concrete structure, wherein both ends are fixed to the tubular body (2) and an elastic tubular body (10) is mounted. 2. The concrete container according to claim 1, wherein the injection container (1) has a flange-shaped pedestal (3) formed at the bottom of the tubular body (2). Repair material injection tool for injecting repair material. 3. The injection tube (6) according to claim 1, wherein a bulge (8) is formed on the outside, and a tube (9) is mounted on the bulge (8). A repair material injecting tool for injecting a repair material into a crack of the concrete structure according to the above. 4. The concrete structure according to claim 1, wherein the elastic tubular body has both ends fixed to the tubular body by fasteners. Repair material injection tool for injecting repair material. 5. An infusion container (1) and a lid (4) are fixed by a screw connection.
A repair material injecting tool for injecting a repair material into a crack of a concrete structure according to claim 1. 6. A body (205b) of the cover member (204) is formed adjacent to a male screw portion provided at a lower end of the cover (205), and the body (205b) is formed of a cylindrical body (202). )
The repair material injection tool for injecting a repair material into a crack of a concrete structure according to claim 1, wherein the repair material is injected above the through hole (212). 7. An infusion tube (306) comprising a lid member (304).
At the lower end of the inner wall of the cylindrical body (2) and the wall (3).
14) and a valve body (3) in which holes (315) are alternately formed.
13) Repairing cracks in a concrete structure according to claim 1, characterized in that the valve body (313) is provided at a height corresponding to the through hole (12) of the tubular body (2). Repair material injection tool for injecting material. 8. A valve body (313) is provided with a core rod (31) at the top.
6) is provided, and the core rod (316) is inserted into the injection tube (3).
The repair material injection tool for injecting a repair material into a crack of a concrete structure according to claim 7, wherein the repair material is injected into a lower end portion of the concrete structure. 9. A cover (20) applied to the outside of the injection device.
And an assembling method comprising assembling a cover body (21) formed in a tubular shape and a cover (20) provided with an insertion hole (23) in a top plate (22) formed in the cover body (21). 2. A repair material for pouring a repair material into a crack in a concrete structure according to claim 1, wherein the insertion hole (23) and the opening of the injection pipe (6) are made to coincide with each other. Repair material injection tool. 10. The concrete structure according to claim 9, wherein the cover (120) has a top plate (122) sandwiched between the tubular body (2) and the lid (5). Repair material injection tool for injecting repair material into cracks. 11. The repair material injection tool for injecting a repair material into a crack in a concrete structure according to claim 9, wherein the cover (20, 120) is formed of a transparent material.