JP2541565Y2 - Sealant injection equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection device for injecting a plastic sealant into a water leaking part.

[0002]

2. Description of the Related Art Cableways, manholes,
Cracks occur in concrete structures such as tunnels and underpasses due to temperature changes and the like. In addition, a gap is formed at a joint portion of the concrete block due to expansion and contraction due to a temperature change of the block. Further, the conduit opening of the conduit into which the cable is introduced is closed by a waterproof mechanism including the admixture that is in close contact with the cable peripheral surface. Gaps occur.
When such cracks and gaps are generated, groundwater, rainwater, and the like leak from these cracks and the like (hereinafter, referred to as water leakage parts).

By the way, the present applicant injects a two-component synthetic resin (trade name: SHOWFLEXIN, manufactured by Showa Electric Wire & Cable Co., Ltd.) as a plastic sealing agent into the above-mentioned leaking part by a conventional injection device. And has an excellent water stopping effect.

[0004]

[Problems to be solved by the invention] However, since the conventional injection device has a complicated structure including a gear box and the like, it is large and heavy, so that it is very difficult to transport it to the site or to carry it into a tunnel. Was troublesome. The present invention has been made to solve such a problem, and an object of the present invention is to provide a small and lightweight sealing agent injection device.

[0005]

SUMMARY OF THE INVENTION The present invention is an injection device for injecting a plastic sealant comprising a two-component synthetic resin into a water leaking portion, wherein first and second synthetic resin materials forming the plastic sealant are provided. Are respectively housed, a pair of pneumatic motors operated by supply of compressed air, and the first and second synthetic resin materials of the pair of resin supply units are pressure-fed by operation of the respective pneumatic motors. It is characterized by comprising a pair of pressure feed pumps and a mixing / injecting device for mixing the first and second synthetic resin materials fed under pressure and injecting them into the water leaking portion.

[0006]

The pair of pneumatic motors are operated by the supply of compressed air to drive each pump. By this driving, each pumping pump pumps the first and second synthetic resin materials of the pair of resin supply units to the mixing / injecting unit in equal amounts via a high-pressure hose or the like. The mixing injector is the first and second pumped
The synthetic resin material is mixed and injected into the water leaking part.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are a front view and a side view, respectively, of a device for injecting a sealing agent according to the present invention. In these figures, reference numeral 1 denotes a frame which is bent in a substantially U-shape, and a grip portion 2 used when an operator pushes and moves the apparatus is formed on an upper portion of the frame 1. A pair of wheels 3, 3 are rotatably mounted on the lower portion of the frame 1, and a pair of L-shaped support legs 4, 4 are mounted on this lower portion. A pair of wheels 3, 3 is used for moving the device, and a pair of support legs 4,
Reference numeral 4 is used to support the frame 1 (device) together with the wheels 3 and 3 in the illustrated state. The lower part of the frame 1 and the support legs 4 are connected to each other by reinforcing rods 5.

A pair of pneumatic motors 6,
6 are arranged. These pneumatic motors 6, 6 have exactly the same configuration, and when compressed air of the same pressure is supplied,
The rotor rotates with the same torque. The upper portions of the pneumatic motors 6 and 6 are connected to a connecting portion 7 via control portions 6a and 6a formed of a valve mechanism. One end of a connecting hose 8 is connected to the connecting portion 7. The other end of the connection hose 8 is connected to an air control unit 9 including an air cleaner or the like, and the air control unit 9 is connected to a supply pipe 10 arranged on the back surface of the frame 1 along the vertical direction.
(See FIG. 2). A ball valve 11 is attached to the lower end of the supply pipe 10, and the ball valve 1
Reference numeral 1 denotes an open / close lever 11a, which is connected to an air compressor (not shown) via a coupler 12 and a supply hose 13.

The lower part of the pneumatic motors 6, 6 is connected to the connecting mechanism 1
4, 14 and connected to each other, and each connecting mechanism portion 14, 1
4 is fixed to a support member 15. Both ends of the support member 15 are fixed to the frame 1 so as to span the frame 1. Each coupling mechanism 1
A pair of pressure pumps 16, 16 are attached to the lower portions of the pumps 4, 14, respectively. These pumps 16 have the same structure with a screw for feeding a viscous resin. In the present embodiment, a pump of the name MONO PUMP 3NEL08 (manufactured by HYOSHIKI EQUIPMENT CO., LTD.) Is used. . Above each pressure pump 16, an L-shaped resin introduction pipe 1 is provided.
7 are provided, and each resin introduction pipe 17 supports the lower surface side of the pair of resin supply tanks 18A and 18B, and communicates with this lower surface. These resin supply tanks 18A, 18B
Is the same height position as the pneumatic motor 6, that is, the pressure pump 1
It is arranged at a position higher than 6.

[0010] The pair of resin supply tanks 18A, 18B
The first synthetic resin material 19A forming a two-component synthetic resin used as a plastic sealing agent (trade name: SHOWFLEXIN manufactured by Showa Densen Cable Co., Ltd.)
And the second synthetic resin material 19B are respectively loaded. That is, this plastic sealing agent was previously filed as a water-blocking material (Japanese Patent Application No. 1-198471), and the first synthetic resin material 19A was mainly composed of N-methylolpropenamide, It is a resin material obtained by dissolving or decomposing a hydrophilic linear polymer-forming component containing a monomer or a methacrylate monomer in water. The second synthetic resin material 19B is a resin material obtained by dissolving or decomposing the above-mentioned polymerization catalyst of the hydrophilic linear polymer forming component in water. These first and second synthetic resin materials 19A,
19B forms a plastic sealing agent (two-component synthetic resin) in a few minutes by mixing equal amounts, and this plastic sealing agent is maintained in a jelly form even in a temperature range of -40 ° C to + 70 ° C, and is semi-permanent. It has no change in plasticity, has a 100% restoring force with respect to compression elasticity, and is also very excellent in chemical resistance and aging resistance.

An upper portion of a substantially L-shaped pumping tube 20 is connected to the lower end of each of the pumping pumps 16, 16, and each pumping tube 20 is fixed to a support 21. One end of each of the high-pressure hoses 22 is connected to the lower part of each pressure feed pipe 20 via a coupler 12. The other ends of these high pressure hoses 22, 22 are
As shown in FIG. The mixing / injecting device 23 includes an opening / closing lever 24 and an injection cylinder 25.
The inner peripheral surface of the injection cylinder 25 is provided with a spiral mixing groove for mixing the first and second synthetic resin materials 19A and 19B.

In FIG. 3, reference numeral 30 denotes a conduit 26.
3 shows a water blocking structure at the conduit opening 27 of the first embodiment. The water stopping structure 30 is made of urethane foam 3 disposed in a pipe 26.
1 and an inner steel wool portion 32 disposed inside the conduit opening 27. Inside steel wool part 3
Numeral 2 is made of fibrous steel and absorbs and holds a plastic sealing agent as described later. The inner steel wool portion 32 is pushed into the conduit opening 27 so as to be in close contact with the peripheral surface of the cable 28 and the inner peripheral surface of the conduit opening 27. In the case of the urethane foam 31, the plastic sealant is
It is arranged to prevent inflow. The outer steel wool portion 33 is opposed to the inner steel wool portion 32 at a constant interval. The distance between the inner and outer steel wool portions 32, 33 is set to the maximum extension of the cable 28, and the outer steel wool portion 33 is in close contact with the peripheral surface of the cable 28 and protrudes in a cylindrical shape.
have. A cable holding plate 34 is adjacent to the outer steel wool portion 33. This cable holding plate 34
The cable 28 is held by penetrating each cable 28 and the protruding portion 33a of the outer steel wool portion 33. The cable holding plate 34 is fitted and supported by the closing plate 35,
The flange of the closing plate 35 is the flange 27 of the conduit opening 27.
The outer steel wool portion 33 is fixed to the flange portion 27a by bolts and nuts while sandwiching the peripheral edge of the outer steel wool portion 33 together with a.

Next, the operation of the injection device according to the present invention will be described. Supply hose 1 from air compressor not shown
When the compressed air is supplied via the valve 3, the compressed air is supplied to the pair of pneumatic motors 6 and 6 at the same pressure via the ball valve 11, the supply pipe 10 and the connecting hose 8. Accordingly, the rotors of the pair of pneumatic motors 6, 6 rotate at the same torque.

When the pneumatic motors 6, 6 operate in this manner, the rotational forces are transmitted to the pair of pumps 16, 16 by the coupling mechanisms 14, 14, and the pumps 16 start driving. Therefore, the pair of pressure pumps 16, 16
Introduces first and second synthetic resin materials 19A, 19B from the pair of resin supply tanks 18A, 18B in equal amounts, and sends out these synthetic resin materials 19A, 19B at high pressure. These fed synthetic resin materials 19A and 19B are
20, is fed to the mixing injector 23 through the high-pressure hoses 22,22. When the mixing / injecting device 23 operates the opening / closing lever 24 to open the valve, the pressure-fed synthetic resin material 19A,
19B is fed into the injection tube 25, and is output at a constant pressure as a plastic sealing agent from the tip of the injection tube 25 while mixing in the mixing groove.

On the other hand, as shown in FIG. 3, the injection pipe 25 of the mixing injector 23 is inserted into the water blocking structure 30 through an injection hole. Therefore, the plastic sealing agent 36 output from the injection pipe 25 is pressed into the inner steel wool portion 32 and absorbed, and then filled between the wool portion 32 and the outer steel wool portion 33, and furthermore, is filled with the outer steel wool portion 33. Pressed into and absorbed. Outer steel wool part 3
When the plastic sealing agent 36 is sufficiently absorbed by the sealing material 3, the sealing agent 36 is transferred to the water blocking structure 3 through the protrusion 33 a.
0, the opening / closing lever 24 of the mixing injector 23
Is closed, and the injection of the sealing agent 33 is terminated. As described above, when the pneumatic motors 6 and 6 are used as the driving sources, the motors 6 and 6 are not overloaded even when the opening / closing lever 24 of the mixing injector 23 is closed. Further, since the pair of pressure pumps 16 and 16 are used, the first and second synthetic resin materials 19A and 19B can be pressure-fed at a high accuracy and in equal amounts. Therefore, a high quality plastic sealant can be injected. Incidentally, the resin supply tanks 18A, 18
Since B is disposed above the pump 16, it is possible to pump the first and second synthetic resin materials 19A and 19B without mixing air.

[0016]

[Effects of the Invention] As described above, according to the present invention,
A pair of pneumatic motors are operated by the supply of compressed air, and the first and second synthetic resin materials of the pair of resin supply units are pressure-fed to the mixing / injector by the pair of pressure feeding pumps in equal amounts. By mixing these synthetic resin materials and injecting a plastic sealing agent composed of a two-component synthetic resin into the water leakage part, a small and lightweight plastic sealing agent excellent in quality can be leaked from various structures. It is possible to provide an injection device that can be injected into the part.

[Brief description of the drawings]

FIG. 1 is a front view of an injection device according to the present invention.

FIG. 2 is a side view of the injection device.

FIG. 3 is a cross-sectional view showing a water blocking structure of a pipe opening into which a plastic sealing agent is injected by the injection device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 6 Pneumatic motor 16 Pressure pump 18A, 18B Resin supply tank 19A, 19B 1st and 2nd synthetic resin material 23 Mixing injector

Claims (1)

(57) [Scope of request for utility model registration] 1. A device for injecting a plastic sealing agent made of a two-component synthetic resin into a water leaking part, wherein a pair of first and second synthetic resin materials forming the plastic sealing agent are respectively accommodated. A resin supply unit, a pair of pneumatic motors operated by supply of compressed air, and a pair of pumps for pumping the first and second synthetic resin materials of the pair of resin supply units by operation of the respective pneumatic motors; And a mixing injector for mixing the first and second synthetic resin materials fed under pressure and injecting them into the water leaking portion.