JPH0539936U - Sealant injection device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a small and lightweight sealing agent injection device. [Structure] First and second forming a plastic sealing agent
The respective synthetic resin materials 19A and 19B are stored in a pair of resin supply tanks 18A and 18B, respectively. Then, the pair of pneumatic motors 6 and 6 are operated by the supply of compressed air, and the pair of pressure pumps 6 and 6 are used to drive the first and second synthetic resin materials 19
A and 19B are pumped in equal amounts. The pressure-fed first and second synthetic resin materials 19A and 19B are mixed by a mixing injector and injected into the water leak section.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an injection device for injecting a plastic sealing agent into a water leak part.

[0002]

[Prior Art]

 Cracks occur in concrete structures such as caves, manholes, tunnels, and underpasses where cables are laid due to temperature changes. In addition, a gap is created at the joint of the concrete block due to expansion and contraction due to temperature changes of the block. Furthermore, the conduit opening of the conduit where the cable is introduced is blocked by a waterproofing mechanism that contains a mixture that is in close contact with the cable peripheral surface, but since the cable expands and contracts after that, it is between the cable peripheral surface and the mixture. There is a gap in. If such cracks or gaps occur, groundwater, rainwater, etc. will leak out from these cracks (hereinafter referred to as "leakage areas").

By the way, the applicant of the present invention has used a two-component synthetic resin (trade name: SHOWFL EXIN manufactured by Showa Denko Denki Co., Ltd.) as a plastic sealing agent for the above-mentioned leaking part in a conventional injection device. It has been injected, and has an excellent waterproofing effect.

[0004]

[Issues to be solved by the device]

 However, since the conventional injection device has a complicated structure including a gear box, it is large and heavy, and it is very troublesome to carry it to the site or carry it into a cave. The present invention has been made to solve the above problems, and an object thereof is to provide a small and lightweight sealing agent injecting device.

[0005]

[Means for Solving the Problems]

 The present invention is a pouring device for injecting a plastic sealing agent made of a two-component synthetic resin into a water leak part, and a pair of resins containing the first and second synthetic resin materials forming the plastic sealing agent, respectively. A supply unit, a pair of pneumatic motors that operate by the supply of compressed air, and a pair of pressure pumps that respectively pump the first and second synthetic resin materials of the pair of resin supply units by the operation of each pneumatic motor, It is characterized by comprising a mixing injector for mixing the first and second synthetic resin materials that have been pressure-fed and injecting them into the water leakage section.

[0006]

[Action]

 The pair of pneumatic motors operate by supplying compressed air to drive each pressure pump. By this drive, each pressure pump pumps each of the first and second synthetic resin materials of the pair of resin supply parts under pressure in equal amounts to the mixing injector via a high pressure hose or the like. The mixing injector mixes the first and second synthetic resin materials sent under pressure and injects them into the water leak section.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 are a front view and a side view of a sealing agent injection device according to the present invention. In these figures, reference numeral 1 denotes a frame body 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 body 1. A pair of wheels 3 and 3 are rotatably attached to the lower portion of the frame body 1, and a pair of L-shaped support legs 4 and 4 are attached to the lower portion. The pair of wheels 3 and 3 are used for moving the apparatus, and the pair of support legs 4 and 4 are used together with the wheels 3 and 3 to support the frame 1 (apparatus) in the illustrated state. The lower part of the frame 1 and the supporting legs 4 and 4 are connected to each other by reinforcing rods 5 and 5.

A pair of pneumatic motors 6 and 6 are arranged above the frame body 1. These pneumatic motors 6 and 6 have exactly the same structure, and when compressed air of the same pressure is supplied, the rotors rotate with the same torque. The upper portions of the pneumatic motors 6 and 6 are connected to the connecting portion 7 via the control portions 6a and 6a formed of a valve mechanism, and one end of a connecting hose 8 is connected to the connecting portion 7. The other end of the connecting hose 8 is connected to an air control unit 9 including an air cleaner, etc., and the air control unit 9 is located at the upper end of a supply pipe 10 (see FIG. 2) arranged on the back surface of the frame 1 along the vertical direction. Is linked to. A ball valve 11 is attached to the lower end of the supply pipe 10, and the ball valve 11 has an opening / closing lever 11a and is connected to an air compressor (not shown) via a coupler 12 and a supply hose 13.

The lower parts of the pneumatic motors 6 and 6 are connected to and supported by the connecting mechanism portions 14 and 14, and the connecting mechanism portions 14 and 14 are fixed to the support member 15. Both ends of the support material 15 are horizontally fixed to the frame body 1. A pair of pressure pumps 16 and 16 are attached to the lower portions of the connecting mechanism portions 14 and 14, respectively. These pressure feed pumps 16 have the same structure with a screw for feeding out a viscous resin, and in this embodiment, a pressure feed pump indicated by the trade name MONO PUMP 3NEL08 (manufactured by Hyojin Equipment Co., Ltd.) is used. There is. An L-shaped resin introduction pipe 17 is provided above each pressure pump 16, and each resin introduction pipe 17 supports the lower surface side of the pair of resin supply tanks 18A and 18B and is communicated with this lower surface. .. These resin supply tanks 18A and 18B are arranged at the same height position as the pneumatic motor 6, that is, at a position higher than the pressure feed pump 16.

In the pair of resin supply tanks 18A and 18B, a two-component synthetic resin {trade name: SHOWFLEXIN, manufactured by Showa Cable Denki Co., Ltd.} used as a plastic sealing agent is formed first. The synthetic resin material 19A and the second synthetic resin material 19B are loaded respectively. That is, this plastic sealing agent was previously applied as a water blocking material (Japanese Patent Application No. 1-198471), and the first synthetic resin material 19A was mainly composed of N-methylolpropenamide, and acrylic acid It is a resin material obtained by dissolving or decomposing a hydrophilic linear polymer forming component, which is prepared by mixing a salt 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 molding component in water. The first and second synthetic resin materials 19A and 19B are mixed in equal amounts to form a plastic sealing agent (two-component synthetic resin) in a few minutes, and the plastic sealing agent is -40 Even in the temperature range of ℃ to + 70 ℃, it is kept in jelly form, its plasticity does not change semipermanently, it has a restoring force of 100% against compression elasticity, and it has excellent chemical resistance and aging resistance. ing.

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

By the way, in FIG. 3, reference numeral 30 denotes a water stop structure at the conduit opening 27 of the conduit 26. The water blocking structure 30 includes a urethane foam 31 arranged in the conduit 26 and an inner steel wool portion 32 arranged inside the conduit mouth 27. The inner steel wool portion 32 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 port 27 so as to be in close contact with the peripheral surface of the cable 28 and the inner peripheral surface of the conduit port 27. The urethane foam 31 is provided to prevent the plastic sealing agent from flowing into the pipe line 26. The inner steel wool portion 32 is opposed to the outer steel wool portion 33 at a fixed interval. The distance between the inner and outer steel wool portions 32 and 33 is set to the maximum extension dimension of the cable 28, and the outer steel wool portion 33 has a protruding portion 33a that is in close contact with the peripheral surface of the cable 28 and protrudes in a tubular shape. is doing. A cable holding plate 34 is adjacent to the outer steel wool portion 33. The cable holding plate 34 holds the cables 28 by penetrating the cables 28 and the protruding portions 33a of the outer steel wool portions 33. The cable holding plate 34 is fitted and supported by the closing plate 35, and the flange portion of the closing plate 35 is held by the flange portion 27a while holding the peripheral portion of the outer steel wool portion 33 together with the flange portion 27a of the conduit port 27. It is fixed with bolts and nuts.

Next, the operation of the injection device according to the present invention will be described. When compressed air is supplied from an air compressor (not shown) via the supply hose 13, 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. To be done. Therefore, the rotors of the pair of pneumatic motors 6 and 6 rotate with the same torque.

When the pneumatic motors 6 and 6 operate in this way, the rotational force is transmitted to the pair of pressure feed pumps 16 and 16 by the coupling mechanism portions 14 and 14, and the pressure feed pumps 16 start driving. Therefore, the pair of pressure feed pumps 16 and 16 introduce the equal amounts of the first and second synthetic resin materials 19A and 19B from the pair of resin supply tanks 18A and 18B, respectively, and press the synthetic resin materials 19A and 19B at high pressure. Send out with. The sent out synthetic resin materials 19A and 19B are pressure-fed to the mixing injector 23 via the pressure-fed pipes 20 and 20 and the high-pressure hoses 22 and 22, respectively. When the valve of the mixing injector 23 is opened by operating the opening / closing lever 24, the synthetic resin materials 19A and 19B that have been pressure-fed are sent into the injection pipe 25 and mixed from the tip of the injection pipe 25 while mixing in the mixing groove. Output as a ring agent at a constant pressure.

On the other hand, the injection pipe 25 of the mixing injector 23 is inserted into the water blocking structure 30 through the injection hole, as shown in FIG. Therefore, the plastic sealing agent 36 output from the injection pipe 25 is press-fitted 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 further the outer steel wool portion. It is pressed into 33 and absorbed. When the plastic sealing agent 36 is sufficiently absorbed by the outer steel wool portion 33, the sealing agent 36 leaks from the water blocking structure 30 through the protruding portion 33a, so that the opening / closing lever 24 of the mixing injector 23 is closed and the sealing agent is closed. The injection of the pouring agent 33 is terminated. As described above, when the pneumatic motors 6 and 6 are used as the drive source, overload is not applied to the motors 6 and 6 even if the opening / closing lever 24 of the mixing injector 23 is closed. Moreover, since the pair of pressure feed pumps 16 and 16 are used, it is possible to feed the first and second synthetic resin materials 19A and 19B with high precision in equal amounts. Therefore, it is possible to inject a high quality plastic sealing agent. Since the resin supply tanks 18A and 18B are arranged above the pressure feed pump 16, it is possible to pressure feed the first and second synthetic resin materials 19A and 19B without mixing air.

[0016]

[Effect of the device]

 As described above, according to the present invention, the pair of pneumatic motors are operated by the supply of compressed air, and the pair of pumps are used to supply equal amounts of the first and second synthetic resin materials of the pair of resin supply parts. It was sent to a mixing injector under pressure, and these synthetic resin materials were mixed by the mixing injector to inject a plastic sealing agent consisting of a two-component synthetic resin into the water leak part, so it is compact and lightweight, but with good quality. It is possible to provide an injection device capable of injecting an excellent plastic sealing agent into the water leakage portion of various structures.

[Brief description of 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 stop structure of a conduit port in which a plastic sealing agent is injected by the injection device of the present invention.

[Explanation of symbols]

 1 Frame 6 Pneumatic Motor 16 Pressure Pump 18A, 18B Resin Supply Tank 19A, 19B First and Second Synthetic Resin Material 23 Mixing Injector

Claims (1)

[Scope of utility model registration request] 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 housed. A resin supply unit, a pair of pneumatic motors that operate by supplying compressed air, and a pair of pressure feed pumps that respectively pump the first and second synthetic resin materials of the pair of resin supply units by the operation of the pneumatic motors. And a mixing injector for mixing the pressure-fed first and second synthetic resin materials and injecting the mixture into the water leakage portion.