KR200393398Y1 - Spray gun of reinforcement material for open concrete structure using a multi-functional slag aggregate - Google Patents

Abstract

The present invention is to install a cutting unit in the interior of the injection gun, the cutting unit is rotated and operated by the driving of the compressed air or the motor as a rotating means to cut the incoming fibers to a predetermined size, and the cut short fibers and inflow By uniformly mixing the repair reinforcement to be discharged and sprayed on the surface of the building structure through the outlet, it is possible to perform the cutting and blending of the fiber homogeneously to prevent agglomeration of the fiber during blending, It is possible to improve reliability and work efficiency at the same time, and it is possible to arbitrarily adjust the length of the short fiber and the mixing ratio with the reinforcing reinforcement material to provide a complex laminated structure suitable for the environment of the building structure, thereby providing a perfect repair construction. Provide spray gun for exposed concrete structure repair reinforcement using multifunctional slag aggregate The wish has been made object.

Description

Spray gun of reinforcement material for open concrete structure using a multi-functional slag aggregate}

The present invention relates to a spray gun used for repair and reinforcement of a building structure, and more particularly, glass or micro fibers (hereinafter, fibers) drawn from one side of the body by installing a cutting part inside the spray gun body. By mixing and spraying the short fibers formed by cutting to a predetermined size and the reinforcing reinforcement discharged and introduced from the continuous pump, so that the blending of the fibers and the reinforcing reinforcement is made uniform. The present invention relates to a spray gun for repairing reinforcement of exposed concrete structures using a multifunctional slag aggregate capable of improving the strength of the repairing material.

In general, in order to repair and reinforce the building structure, the mortar is sprayed on the surface for repair and construction. The conventional spray gun used is a ratio of cement and sand at one side of the body 110 as shown in FIG. 1. The injection unit 112 is formed so that the mixed mortar can be injected through the hose h. An air inlet 114 through which the air of a compressor (not shown) is injected through the nozzle n is formed therein. And, the other side of the body 110 is formed with a discharge outlet 116 in the expanded state, the conventional injection gun 100 is a mortar flow into the body 110 is discharged by the high-pressure compressed air It passed through (116) and discharged and sprayed to perform only a simple function of repairing the building structure.

On the other hand, since the construction of the mortar sprayed and poured on the surface of the building structure depends on its binding strength, the mortar and glass or microfibers may be mixed at an appropriate mixing ratio in the plant mixing system in an effort to improve the binding strength. After mixing and transporting to the work site and repairing the surface of the building structure through the spray gun, such a compounding method should always be accurately measured and blended mortar and fiber mixing ratio, resulting in increased labor and cutting, As a result of the cumbersome problems of conveying and blending, as well as lowering the efficiency of the work and raising the construction cost, above all, the fiber ball is generated during blending in the factory, which prevents smooth blending. Many problems such as deterioration of the reliability of the product due to reduced binding strength Derived.

Therefore, in order to solve the above problems, the present invention provides a cutting part inside the spray gun, and the cutting part is rotated and operated by driving the compressed air or the motor, which is a rotating means, to insert the fiber into a predetermined size. By cutting and mixing the cut short fibers and the reinforcing reinforcement material, and discharging and spraying the surface of the building structure through the outlet, it is possible to perform the cutting and blending of the fibers homogeneously, By preventing agglomeration, it is possible to improve the reliability and work efficiency of the product at the same time, and to control the length of the short fiber and the mixing ratio with the reinforcing reinforcement material arbitrarily to provide a composite laminated structure suitable for the environment of the building structure. Exposed concrete using multi-functional slag aggregate to make perfect repair work Plaiting reinforcement to provide maintenance for the minutes that the case has been made objective.

In order to achieve the above object, the present invention has a first and a second inlet through which the compressed air is introduced by adjusting the valve, respectively, connected to the compressor and the nozzle at one upper side and the lower center thereof, and connected to the continuous pump and the hose. The inlet part through which the reinforcement reinforcement is introduced by adjusting the valve is formed at the lower side of the other side, and the inlet through which the fiber in the form of twisted yarn is introduced into one side and the outlet formed by discharging the reinforcement material and the fiber are discharged by mixing the reinforcement reinforcement material with the other side. Wow; A cutting part which is rotated by compressed air, which is a rotation means flowing into the first inlet of the body, and continuously cuts the fiber introduced into the inlet to a predetermined size to form short fibers; Mounted inside the body and the fibers cut into a predetermined length by the cutting portion and the reinforcing reinforcement introduced into the injection portion is passed through the mixed mesh formed with a plurality of through holes to be combined to be discharged and sprayed to the outlet It features.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

2 is a schematic cross-sectional view schematically showing the present invention, Figure 3 is an exemplary view showing a state of use of the present invention, Figures 4a, 4b is a view showing the action of the cutting portion that is the main part of the present invention Figure 5 is a side cross-sectional view showing another embodiment of the present invention and Figure 6 is an exemplary cross-sectional view showing a laminated structure of the maintenance reinforcing material sprayed by the present invention.

As shown, the spray gun 1 of the present invention mixes short fibers f 'cut into a predetermined length of the fiber f into a predetermined length in the body 10, and discharges the compressed reinforcing material by mixing the reinforcing reinforcement material. As it is used to repair and reinforce the construction of the building structure (G) by the injection, the body 10 is injected or molded into a lightweight metal or synthetic resin material, the inlet port (f) is introduced into one side (f) 12 is formed, the other side is formed by expanding the outlet 14 for discharging the mixed reinforcing reinforcement, the first injection hole 16 to be connected through a known compressor (C) and the nozzle (n) on one side ) Is protruded, the second inlet 18 is protruded and formed in the center lower portion so as to be connected through the compressor (C) and the nozzle (n), the other side of the maintenance reinforcement discharged from the known continuous pump (P) Note to be introduced into the body 10 through the hose (h) What is necessary is just to protrude and form the mouth part 20 integrally.

At this time, the fiber (f) is formed by processing a glass or micro fiber in the form of twisted yarn (thin long thread) and wound in a roller (not shown), and cut the fiber (f) to a predetermined length Forming the fiber (f ') and then mixing the reinforcing reinforcement to improve the binding capacity of the reinforcing reinforcement will be able to more easily perform the repair and reinforcement of the building structure (G).

On the other hand, the cutting portion 30 is the first and second rotary shafts 40, 50 and the first rotary shaft 40 integrally rotatably rolled on the upper and lower sides of the inside of the body 10, respectively. The fixing member 42 is inserted into and fixed to the fixing member 42 having a plurality of fixing grooves 44 formed on the surface thereof, and fixed to the fixing grooves 44 of the fixing members 42, respectively. A plurality of cutting edges 46 cut into short fibers f ', and the cutting edges 46 are grounded to cut the fibers f, and a predetermined elasticity is minimized to minimize wear of the cutting edges 46. What is necessary is just to integrally insert the packing 52 which has it into the surface of the said 2nd rotating shaft 50. As shown in FIG.

The mixed mesh 60 is injection-molded into a cylindrical shape in which one side of the metal or synthetic resin material is opened, and a plurality of short fibers cut to a predetermined length by the cutting part 30 by forming a plurality of through holes 62 on the other side. (f ') and the reinforcing reinforcement material introduced into the body 10 through the hose (h) is to pass through the through hole 62 is homogeneously blended.

The installation and operation of the peripheral equipment for using the spray gun 1 of the configuration in the work site is first installed in the work site, a known compressor (C) and a continuous pump (P) as shown in FIG. Next, one end of the hose (h) is fastened to the discharge side of the continuous pump (P), and the other end of the hose (h) protrudes to the lower portion of the body (10). On the hose (h) is provided with a valve (B) for adjusting the flow rate of the reinforcing reinforcement, the compressor (C) has two nozzles (n) formed in the body 10, respectively, the first and second inlet 16 Is connected to (18), the valve (B) for controlling the inflow of the compressed air is installed on the nozzle (n), respectively, the inlet 12 formed on one side of the body 10, the winding yarn-shaped fibers (f) Once the end is placed in the cutting part 30, the installation for the repair and construction of the building structure (G) is completed.

When the compressor (C) and the continuous pump (P) installed as described above are operated, the liquid maintenance reinforcement in which the compressed air and the cement, sand, and water are mixed in a certain ratio at the same time in the body 10 of the spray gun 1 Compressed air, which is a rotating means introduced through the first inlet 16, is inserted into the fixing groove 44 of the fixing member 42. The first rotating shaft 40 is hit by a plurality of fixed cutting blades 46. At the same time, the cutting blade 46 and the second rotating shaft 50 in which the urethane material 52 is grounded are also rotated, and the fiber f positioned therebetween is cut to a predetermined length. The fibers f 'are continuously formed.

At this time, as shown in Figure 4a, 4b the length of the short fiber (f ') is inserted into the fixing groove 44 of the fixing member 42. It is possible to adjust according to the number of fixed number of cutting blades (46). The cutting length is preferably 5 to 20 mm, and the cutting speed, the feed rate of the short fiber (f '), the injection speed of the reinforcing reinforcement material, or the inflow rate of the compressed air and the reinforcing reinforcement material is the compressor (C) and the continuous pump ( The valve B is provided on each nozzle n and the hose h which connect P to the injection gun 1, and the adjustment is possible by the operation of this valve B. FIG.

Subsequently, the short fibers f 'are transferred to the discharge port 14 in the body 10 by the compressed air introduced through the second inlet 18 and mixed with the repair reinforcement material introduced into the injection unit 20. Compressed air flowing into the second inlet 18 prevents backflow of the short fibers f 'and the reinforcing reinforcement, and transfers and discharges the mixed reinforcing reinforcement and the short fibers f' to the outlet side. At the same time, the reinforcing reinforcement and the short fibers (f ') by the pressure of the compressed air passes through the through hole 62 of the mixed mesh 60 mounted inside the body 10 during the transfer. The reinforcing reinforcement and short fibers (f ') is more homogeneously blended.

On the other hand, Figure 5 is an embodiment of replacing the compressed air which is a rotating means for rotating the cutting unit 30, the rotational speed is controlled and driven by a separate applied power source (M) to the body 10 It is to be installed on the front or rear of the body 10 to interlock with the first rotary shaft 40 in the upper side of the inside to operate the continuous pump (P) and at the same time to drive the motor (M) at a constant speed Rotating the first rotary shaft 40 is inserted into the fixing groove 44 of the fixing member 42. A plurality of fixed cutting blades 46 rotate, and the packing 52 is grounded with the cutting blades 46. ) Is inserted into the second rotating shaft 50 is also rotated, and the fibers f positioned therebetween are continuously cut to form a single fiber f '.

6 is a cross-sectional view of the building structure G repaired and reinforced by the spray gun 1 of the present invention. First, as described above, the binding force in which the short fibers f 'are mixed at a predetermined ratio is shown. The excellent reinforcing reinforcement is placed on the surface of the building structure (G) to a certain thickness to form a fiber mixing layer (SG1) and then cured for a predetermined time and then short fibers (f ') on the upper surface of the fiber mixing layer (SG1) ) Only the general repair reinforcing material is not mixed to form a fiber-free mixing layer (SG2).

Thus, to form only the fiber reinforcement layer (SG2) by pouring only the reinforcing reinforcing material to smoothly perform the surface plastering finish, in this case, the valve (B) on the nozzle (n) connected to the compressor (C) Closing to block the inflow of compressed air or to cut off the power of the motor (M) to stop the operation of the cutting unit 30 to maintain the cut state of the fiber (f), the second inlet 18 Only the reinforcing reinforcement injected into the inlet 20, the compressed air introduced into the) is to be discharged and sprayed to the outside through the discharge port (14).

Therefore, the composite laminated structure consisting of the fiber mixing layer SG1 and the fiberless mixing layer SG2 can be easily constructed by the operation of the valve B, thereby facilitating repair and reinforcement of the more robust building structure G. It can be done.

As described above, by providing a spray gun for the exposed concrete structure repair reinforcement using the multifunctional slag aggregate of the present invention, it reduces the labor required for accurate weighing and blending of materials when blending fibers and repair reinforcement to improve work efficiency. It is possible to improve the robustness of the repair material and the reliability of the repair work by securing the homogeneity of the fiber mixing by preventing the agglomeration of fibers during blending, and the mixing ratio can be arbitrarily set by the valves installed in each nozzle and hose. It is a useful design that can be applied to repair and reinforcement methods or to carry out a multi-layer laminate structure that is adjusted to meet the requirements and performance of the work site.

On the other hand, the present invention is not limited to the above embodiments, it will be understood that various modifications can be made in the art without departing from the scope of the claims.

1 is a cross-sectional view schematically showing a conventional spray gun.

2 is a cross-sectional view schematically showing the present invention.

Figure 3 is an exemplary view showing a state of use of the present invention.

Figure 4a, 4b is a cross-sectional view showing the operation of the cutting portion that is the main part of the present invention.

Figure 5 is a side cross-sectional view showing another embodiment of the present invention.

Figure 6 is an exemplary cross-sectional view showing a laminated structure of the reinforcing stiffener sprayed by the present invention.

            *** Description of the symbols for the main parts of the drawings ***

   1 spray gun 10 body 12 inlet

  14 outlet 16 16: primary inlet 18: secondary inlet

  20: injection portion 30: cutting portion 40: the first rotating shaft

  42: fixing member 44: fixing groove 46: cutting blade

  50: second rotating shaft 52: packing 60: mixed network

  62: through hole n: nozzle f: fiber

  f ': short fiber B: valve M: motor

   C: Compressor P: Continuous Pump G: Building Structure

 SG1: Fiber mixing layer SG2: Fiber mixing layer

Claims (4)

The first and second inlets 16 and 18, which are connected to the compressor C and the nozzle n, respectively, inflow of compressed air by the adjustment of the valve B, are formed at one side upper part and the center lower part, and a continuous pump is provided. (P) and the hose (h) is connected to the inlet (20) is formed in the lower portion of the other side through which the reinforcing reinforcement is introduced by the adjustment of the valve (B), the inlet port in which the filamentary fiber (f) is introduced into one side 12 and the other side of the body 10 is formed integrally with the discharge port 14 is discharged by mixing the reinforcing reinforcement and the fiber (f); The fiber f, which is rotated by the compressed air which is a rotation means flowing into the first inlet 16 of the body 10 and drawn into the inlet 12, is continuously cut and cut to a predetermined size to form a short fiber f '. Cutting portion 30 to form a; A plurality of through-holes 62 are formed in the body 10 and the short fibers f ′ cut into the predetermined length by the cutting part 30 and the repair reinforcement material introduced into the injection part 20 are formed. Spray gun for exposed concrete structure maintenance reinforcement using a multi-functional slag aggregate, characterized in that it is mixed and passed through the mixed mesh 60 to be discharged and sprayed to the outlet (14). The first and second rotary shafts 40 and 50 and the first rotary shaft 40 of claim 1, wherein the cutting portion 30 is rotatably rolled on the upper and lower sides of the body 10, respectively. ) Is integrally inserted and inserted into and fixed in the fixing member 42 and the fixing groove 44 of the fixing member 42 in which a plurality of fixing grooves 44 are radially formed on the surface thereof. A plurality of cutting blades 46 cutting the short fibers f 'of a predetermined length, and the cutting blade 46 is grounded with the cutting blades 46 to cut the fibers f and to minimize the wear of the cutting blades 46. Spray gun for exposed concrete structure maintenance reinforcement using a multi-functional slag aggregate, characterized in that 52 is integrally inserted into the surface of the second rotary shaft (50). According to claim 1, wherein the length of the short fibers f 'cut from the cutting portion 30 is inserted into the fixing groove 44 of the fixing member 42. The number of fixed cutting blades 46 Spray gun for exposed concrete structure repair reinforcement using a multifunctional slag aggregate, characterized in that it is controlled by. According to claim 1, wherein the rotational speed is controlled by a separate applied power to replace the compressed air which is a rotating means for rotating the cutting unit 30. Motor (M) driven by the upper side of the inside of the body (10) Spray gun for exposed concrete structure maintenance reinforcement using a multi-functional slag aggregate, characterized in that it was installed on the front or rear of the body 10 so as to interlock with the first rotating shaft (16) rolled on.