JPH05845U - Washer for injection of crack filler - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to separately prepare the main agent and the curing agent, and to inject them while mixing these two liquids only at the time of filling. [Structure] This injection washer 5 has an inlet 9 into which a main agent and a curing agent are separately injected, and an outlet 1 at the bottom.
1 is formed in the hollow cylindrical portion 6 and is housed in the cylindrical portion 6. One end of the hollow cylindrical portion 6 is connected to the inlet port 9 and the other end is connected to the outlet port 11.
The flexible tube 12 for mixing in which 3 is inserted is the cylindrical portion 6
It is inserted in a spiral shape inside, and when the mixing member 13 passes, the main agent and the curing agent are made into a fine stream, and they are brought into contact with each other to mix them, and become a filler from the discharge port 11 to crack. Injected into 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  This device is used to fill cracks and floats in concrete structures. Regarding the filling tool for injecting the filler, particularly, it is attached to the tip of the filling tool. Applied to the seal part of the building, etc. The present invention relates to a washer for injecting a crack filler that is injected into a crack or a gap.

[0002]

[Prior art]

  Since concrete has excellent durability and is relatively inexpensive, it can be used in high-rise buildings as well as in high-rise buildings. It is also widely used in ordinary houses. However, on the other hand, the concrete floor, There is a drawback that cracks and floats easily occur in walls and ceilings, If the cracks and floats are left as they are, water may enter the Is promoted and durability is reduced.

[0003]   If such cracks occur, fill the cracks with epoxy resin. Filling is widely practiced. If the width of the crack is large, use a high-pressure pump. The method of filling with epoxy resin is adopted, but the width of cracks and the gap due to floating If it is too small, the filler will block the air escape, making injection difficult. Therefore, it is not possible to completely fill the place where cracks occur. So at low pressure and A low-pressure injection method for filling epoxy resin with a constant pressure has been proposed in the past. There is. This low-pressure injection method applies a sealant in advance to the cracked area. After sealing, attach injection washers at predetermined intervals at cracks, etc. The filler is gradually injected from the injection washer, and compared with the high pressure injection method. Since the repulsive pressure at the time of injection is low, it can be injected even into minute cracks, etc. Can be reliably injected without causing secondary deterioration that promotes floating and the like. There are advantages.

[0004]   The filling tool for carrying out this low-pressure injection method is made of an elastic material such as rubber. The bag is filled with the filler and the restoring force of the elastic body is used to inject the filler. The air pressure compressed in the force tank is used to inject the filler in the injector. The plunger of a syringe-type injector filled with filler or filler. It is gradually moved by the air pressure from the chassis, the spring pressure, or the restoring force of the stretched rubber. There are things that can be made to do so.

[0005]   On the other hand, when the filler is epoxy resin, two liquids of the main agent and the curing agent are used on site. After mixing to form a one-component type apparently, the above-mentioned filling device is filled and injected. It As a result, the filler will harden inside the filler, so a large amount of filler should be placed inside the filler. There is a drawback that it cannot be filled. Therefore, a large amount of small fillers are required, Not only does it take time, but long-term injection is not possible and The injection is not enough. Furthermore, it is not possible to inject the filler in advance, Therefore, it is necessary to mix the main agent and the curing agent and to fill the filling tool, which is troublesome. It

[0006]   So, for example, an injection device that injects while mixing the main agent and the curing agent is used. For example, it is proposed in Japanese Utility Model Laid-Open No. 63-21369. This injector is a separate container The main agent and curing agent put in the rabin spa with multiple baffles and baffles. From the top of a mixer that is formed into a strip and is configured to mix the base and curing agents After supplying and mixing these main agent and curing agent in this mixer, it is connected to the lower part Is configured to be sent to an injection washer. The main agent and curing agent are mixed for the first time in the mixing section. As it is combined, it is possible to inject a large volume of filler compared to conventional fillers. There are advantages.

[0007]

[Problems to be solved by the device]

  However, this filling device causes the filling pressure of the filler to be the capillary phenomenon in the crack. If the filler does not reach the cracks at the start of injection, the injection pressure As a result, no pressure is generated due to capillary action, and after setting the filling device, There is a drawback that it takes a long time to inject the filler into the plug. Also, for the Rabins Pass Due to the structure, if the filler inlet is at the bottom and the outlet is at the top, the air inside the mixer will It can be discharged as the filler is injected, but since the filler is injected from the top, A small amount of air remains and the mixing function cannot be fully exerted.

[0008]   On the other hand, a static mixer is provided as a member for mixing liquids. This As shown in Fig. 4, the Tatec mixer uses short plate-shaped small pieces 18 to the left and to the right. Two kinds of elements 1 and 2 twisted at 0 degrees are alternately arranged and their edges are 90 degrees each. The stirring member 3 connected so as to be fixed is fixed in the straight pipe 4. . As a result, when the liquid is injected into the pipe 4 from above, the first element The liquid is divided into two when passing through the front panel 1. Liquid divided into two is the second under It is divided into two by the element 2 of the eye, but the edge of the element 2 is the element 1 Since it is different by 90 degrees from the edge of Half goes down on one side of the element 2. That is, n elements If the liquid is used, it will be divided into 2 n times. It can be mixed.

[0009]   The inventor has studied the function of this static mixer in detail and found that If the liquid is poured tightly into the pipe with Or by injecting the liquid from below to above, see that the liquid is completely mixed. I put it out.

[0010]   That is, the purpose of this invention is to separate the main agent and curing agent prepared separately Of the crack filler that was mixed by a mixer and injected into the crack. The purpose is to provide a washer for injection.

[0011]

[Means for Solving the Problems]

  The washer for injecting the crack filler of this invention has the main agent and the curing agent injected in the upper part. A support member having an inlet and an outlet at the bottom, one end of which is the other end of the inlet. Are connected to the respective outlets, and the mixing parts of the static mixer are inserted inside. And a flexible tube for mixing.

[0012]   The washer for injecting crack filler according to the present invention also includes a flexible tube as a support member. Be supported in a spiral shape on the And a plurality of U-shaped tubes for forming a continuous passage, the mixing member It is characterized in that it is housed in the straight pipe part.

[0013]

[Action]

  When repairing a crack, leave an appropriate gap on the crack as before. Seal and attach the injection washer to the seal. At each inlet Install the filler containing the main agent and the filler containing the curing agent. Main agent and curing agent are acceptable The liquid is sent into the flexible tube and the liquid flows for 2 minutes when passing through the first element. To be split. The divided liquid is divided into two by the second element following the first. To be split. The edge of the second element is 90 degrees from the edge of the first element. Because of the different degrees, each half of the liquid divided in two by the first element Flows along one side of the element. Therefore, n elements If it is used, it will be divided into 2 n times, and the main agent and curing agent will be discharged from the bottom outlet. Are injected into the crack as a completely mixed filler. In this way the filler It is only necessary to prepare the main agent and the curing agent separately, and the two liquids will contact and cure in the filling tool. Since there is no such thing, the pot life can be greatly extended and the filling tool can be enlarged. Therefore, the total number of filling tools can be reduced. Also, the filler is used repeatedly You can also

[0014]   This flexible tube is supported by a support member in a spiral shape, so that the flexible tube is flexible. The length of the tube can be increased and multiple elements can be inserted into the flexible tube be able to. In addition, a plurality of straight pipe parts and a continuous passage connected to these straight pipe parts A flexible tube is formed with a plurality of U-shaped tubes for forming, and the mixing member is inside the straight tube portion. The flexible tube can be tightly supported by the support member. However, since the mixing member is put only in the straight pipe part, it mixes in the curved part of the flexible tube. Disadvantages such as the parts being positioned and deformed, and the mixing being insufficient, can be eliminated. It

[0015]

【Example】

  Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings. First, shown in Figure 1 and Figure 2. Explaining the first embodiment, the injection washer 5 includes a hollow cylindrical portion 6 and a hollow cylindrical portion 6. The top plate portion 7 that closes one end opening portion of the portion 6 and the outside of the cylindrical portion 6 that closes the other end opening portion of the cylindrical portion 6 And a bottom plate portion 8 having a diameter larger than the diameter. These are made of polyethylene or polypropylene. It is composed of a hard thin plate made of synthetic resin such as ren. The inlet 9 is located above the top plate portion 7. Is provided integrally with the bottom plate 8 and a discharge port 11 is formed in the bottom plate 8. . Inside the cylindrical portion 6, a resin made of a flexible synthetic resin such as vinyl chloride is used. The tube 12 is stored. The above-mentioned static mixer is provided in the tube 12. The mixing member 13 composed of the above elements is continuously inserted. Each element Although the details are not shown in the figure, the tube 12 has the same connection relationship as in FIG. It is fixed inside. One end of the tube 12 is connected to the inlet 9 and the other end is discharged. It is connected to the outlet 11, and in the meantime, the inside of the cylindrical portion 6 is spirally wound.

[0016]   The filling tool 21 connected to the inlet 9 of the injection washer 5 has two hollow bottomed cylindrical shapes. A partition wall 20 having a container 22 of columnar or columnar shape, and the inside of the container 22 extending in the axial direction. Is divided into two rooms 23 and 24. These two are on the bottom of the container 22 The spout 25 is provided at a position communicating with the chambers 23 and 24 of the The partition wall 20 also extends into the spout 25. This spout 2 The inlet 9 of the washer 5 for injection is connected to 5. In the first and second rooms 23, 24 The plungers 26 are fitted so that they can move axially in a watertight state inside them. Has been done. One end of the rod member 27 is provided at the center of each upper surface of the plungers 26. Are fixed and each upper end of the rod member 27 is attached to one pressing member 28. . This rod member 27 is used when the plunger 26 is located near the spout 25. It has an axial length sufficient to project from the other end of 22.

[0017]   The bottom portion 2 of the container 22 projects substantially horizontally from the opposite sides of the container 22. The support member 29 is fixed. At both ends of the support member 29, a substantially U-shaped The support portion 31 is formed. A support shaft 32 is rotatably supported between the support portions 31. The inner ends of the wind-up type leaf springs 33 are fixed to the support shafts 32, respectively. ing. The outer end of each roll-up type leaf spring 33 is fixed to the protruding end of the rod member 27. It is detachably locked to the locked portion 34. This wind-up type leaf spring 33 is -Shaped steel plate is wound in a spiral shape that adheres in advance. It is said that the force required to stretch between strokes is constant regardless of the length. It is a leaf spring known as a constant load winding type leaf spring having the following performance. The plunger 26 is pressed toward the spout 25 using the constant return force of the leaf spring. . Therefore, the retractable leaf spring 33 has the plunger 26 ejected from the illustrated state. Having a strength that maintains a constant force while being wound in the state closest to the part 25 To use.

[0018]   When injecting a filler into a crack by using the injection washer 1 thus configured, This will be explained next. Suitable for the cracks 16 on the wall surface 15 as in the conventional filling method. Make a seal at appropriate intervals, and place the bottom 13 of the injection washer 5 against this seal. The gap between them is glued and fixed to the seal part. On the other hand, in the filling tool 21, the first And the plunger 26 is removed from the second chambers 23 and 24, and the main agent is placed in the first chamber 23. , And the second chamber 24 is filled with a curing agent. After putting a specified amount of these, The changer 26 is fitted into the first and second chambers 23 and 24, respectively. In this state, The tip of the outlet 34 is fitted into the inlet 9 of the washer 5 for injection, and the filling tool 21 is fixed to the inlet 9 of the washer 5 for injection.

[0019]   Finally, the outer end of the retractable leaf spring 33 is stretched, and the end is supported. It is locked to the locking portion 34. As a result, the retractable leaf spring 33 is Although an attempt is made to wind up, the outer end portion of the wind-up type leaf spring 33 has the locking portion 34 of the support member 29. Since it is fixed to the container, its force pushes the rod member 27 into the container 21. To work. Therefore, the plunger 26 of the rod member 27 is also pushed into the container 22. Rarely, the main agent in the first chamber 23 and the curing agent in the second chamber 24 are injected from the spout 25. It is injected into the tube 12 from the inlet 9 of the washer 55. In this tube 12 The main agent and the curing agent contact each other for the first time. The main agent and hardening agent injected into the tube 12 are the first It is sent to the next element 2 while being divided into two by element 1 of this element. Since the end of the element 2 is different from the end of the element 1 by 90 degrees as described above, The main agent and curing agent that are divided into two should be divided into four when passing through element 2. become. Moreover, since the twisting direction is different, it will contact at different parts, Agitation of the main agent and the curing agent, which have been made into a fine stream, is reliably performed. The mixing member 13 is like this Since a large number of different elements are connected, it is further subdivided and twisted to make it the main agent. Stirring of the curing agent and the curing agent is performed more completely, and the filler is discharged from the outlet 11 of the bottom plate 8 It will be injected into the crack 16. The pressing force by the winding leaf spring 33 is injected. It maintains a nearly constant force from the beginning to the end of injection, and does not cause a pressure drop during injection. Therefore, the backflow of the filler injected into the crack 16 of the wall surface 15 causes Filler can be injected at a constant pressure until injection is completed without losing resistance . Further, the filler contains the two liquids in a separated state before being injected into the injection washer 5. Therefore, a large amount of filler can be preset.

[0020]   In the second embodiment shown in FIG. 3, the tube 12 includes a plurality of straight pipe portions 35 and A plurality of U-shaped pipes 36 connected to both ends of the straight pipe portion 35 to form a continuous passage. It is composed of and. Each straight pipe portion 35 is in the axial direction of the cylindrical portion 6 of the injection washer 5. Are arranged so that their axes are located in the straight pipe section 35. Each is housed. As a result, since there is no mixing member 13 inside the U-shaped pipe 36, Since it can be bent about 180 degrees, a large number of straight pipes can be densely packed in the injection washer 5. The part 35 can be accommodated. Therefore, the straight pipe portion 35 should be substantially long. It is possible to arrange a large number of elements. The mixing member 13 is the straight pipe portion 3 Since it can be put only in 5, the mixing member 13 can be inserted into the U-shaped pipe 36. It is possible to eliminate the drawback that the element is deformed and the mixing is not performed sufficiently. .

[0021]   By inserting the element of the static mixer into the tube 12, Tensile test to see if it can be reliably mixed with the curing agent to exert its effect as a filler And a bending test. The experiment is a two-liquid mixed type epoxy that uses an amine-based curing agent. Taking the case of using xy resin as a filler, the main agent and curing agent are Take equal weight each, mix well with a propeller stirrer, and pour into a dumbbell type. A standard test body was obtained by molding, fully curing, and then demolding. On the other hand, For example, by using a filling tool as shown in FIG. 1, the main agent and the curing agent are separately mixed inside. The standard test is to mix the mixture in the tube. Similar to the body, the sample was cast in a dumbbell mold, cured, and then demolded.

[0022]   In the tensile test, a straight tube was used as a sample as shown in Fig. 4. There are 21 elements that are inserted, 13 elements that are inserted, and 6 pieces of inserts, and a soft vinyl tube 4 bending type sumps with 21 rings inserted and a ring formed in the middle of the tube And prepared a dumbbell tensile test. The results are shown in Table 1.

[0023]

[Table 1] In order to check the adhesiveness of the filler used in the tensile test, a mortar test piece was pasted with a filler made for a standard test body and a filler made of a straight tube containing 21 elements, and a 4-point bending test. Was carried out based on JIS A6024. For the mortar test piece, prepare two rectangular blocks with a length of 4 cm, a width of 4 cm, and a length of 8 cm, and place a gap of 1 mm at the longitudinal end, and fill the gap with the standard specimen filler and After filling the filler made of straight tube and hardening it to fix them together, the lower part of the center of each block is supported by a fulcrum, and the load is applied from the upper surface near the joint of each block. A bending test was performed. The results are shown in Table 2.

[0024]

[Table 2] From Table 1, it can be seen that even with a short tube having a small number of elements, a sufficient cured state and strength can be provided, and from Table 2, it can be seen that even a mixing member such as the present invention can exhibit performance as a repair resin. Will.

[0025]   In addition, for example, the mixing ratio of the main agent and the curing agent is different, such as 1: 2 or 1: 3. When using a filler, change the step areas of the first and second chambers 23 and 24. It is possible to change the injection amount of the main agent and the curing agent individually, The first and second chambers 23 and 24 are paired so that the injection amount from 24 matches the desired ratio. It suffices to change the ratio of the opening degree of the inlet port 25 to be used.

[0026]   Although the washer has a cylindrical shape in the above-described embodiment, it has a large number of hollow prisms. Needless to say, the shape may be rectangular. Further, the tube 12 is housed in the cylindrical portion 6. However, a supporting member having an inlet and an outlet is provided to expose the outside air to the supporting member. The tube 12 may be supported as described above.

[0027]

[Effect of device]

  As described above, the washer for injecting the crack filler of the present invention has the main component and the curing agent on the upper part. A support member having an inlet through which is injected and an outlet at the bottom, and one end of which is The other end of the inlet is connected to the outlet, and a static mixer is installed inside. Since it has a flexible tube for mixing, in which the mixing member of It is only necessary to store the curing agent and the curing agent separately, and it is necessary to mix them for the first time in the flexible tube. The main agent and the curing agent are surely mixed when passing through this tube. Therefore, It does not harden in the filling tool and the pot life can be significantly extended, resulting in a large filling tool. Since it can be made into a mold, the total number of filling tools can be reduced. Again for a long time Since the barrel can be injected, it is possible to fully inject the filler even in the deep part of the crack. It Not only containers and tubes but also mixing members can be made by molding synthetic resin Therefore, a disposable injection washer can be provided at low cost. Also, the filling tool Can be used multiple times.

[0028]   This invention also proposes that the flexible tube be inserted into the support member in a spiral shape. The length of the tube can be increased and multiple elements can be inserted into the flexible tube be able to. In addition, a plurality of straight pipe parts and connecting to these straight pipe parts form a continuous passage. A flexible tube is composed of a plurality of U-shaped tubes, and the mixing member is If accommodated, the flexible tube can be densely accommodated in the support member, Since the mixing member can be placed only in the straight pipe part, the mixing member can be attached to the curved portion of the flexible tube. It is possible to eliminate the drawback that the is located and deformed, and the mixing is not sufficiently performed.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention with a filler partially cut away.

FIG. 2 is a front view showing a washer in this embodiment with a part thereof cut away.

FIG. 3 is a partially cutaway front view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing a static mixer with a part cut away for explaining the static mixer.

[Explanation of symbols]

1, 2 element 5 Washer for injection 6 Cylindrical part 7 Top plate 8 Bottom plate 9 entrance 11 outlet 12 tubes 13 Mixing member 36 U-tube 35 Straight pipe section

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Creator Satoshi Yamaguchi             3781-26 Higashiyama Nishiyama, Okuradani, Akashi City, Hyogo Prefecture             Asagiri Mansion B-208

Claims (3)

[Scope of utility model registration request] 1. A support member having an inlet for injecting a main agent and a curing agent in the upper part and an outlet in the lower part, one end of which is connected to the inlet and the other end connected to the outlet, A washer for injecting a crack filler, which has a flexible tube for mixing in which a mixing member of a static mixer is inserted. 2. The washer for injecting a crack filler according to claim 1, wherein the flexible tube is spirally supported by the support member. 3. The flexible tube has a plurality of straight pipe portions and a plurality of U-shaped pipes connected to the straight pipe portions to form a continuous passage, and the mixing member is the The washer for injecting a crack filler according to claim 1, wherein the washer is housed in each of the straight pipe portions.