KR20120015400A - Grout injection pumping machine - Google Patents

Abstract

PURPOSE: A grout injection pumping machine is provided to prevent cracks and reduce processing time because the machine selectively injects one or two of liquid chemicals by installing three pumping units. CONSTITUTION: A grout injection pumping machine comprises a base, a driving unit, three pumping units(20,20',20"), a nozzle unit, and a liquid chemical injection valve(40). The driving unit comprises a first gear installing in a motor or a motor shaft, a second gear rotating by the first gear, a eccentric roller, and a slider(10) sliding along a guide member. The pumping unit is supported by a supporting member and installed on the top of the base in predetermined gap of left and right sides. A projection(23a) is formed in the front end of the slider and the end of the piston. Projection keeps the short circuited state. A switch member is detachably installed in the front upper part of the slider. The switch member controls connection and separation between the end of the piston and the front end of the slider to control the piston slidingly move forth and back.

Description

Grout injection pumping machine

The present invention relates to a grout injection pump for preventing further cracking by injecting a waterproofing chemical solution into cracks generated in various buildings and the like. The present invention relates to a grout injection pump for selectively injecting a waterproofing chemical solution.

In general, grout injection pumps prevent cracking caused by cracks generated in walls and ceilings of various buildings, and in particular, by injecting and solidifying a waterproofing grout into the cracks of the cracks, which are gradually larger due to the age of the building. Used.

In the past, a grout injection pump for injecting a waterproof grout has been variously proposed. Most of these pumps can be classified into two types: one-component grout pumps using only one polyurethane chemical and two-component grout pumps using polyurethane and epoxy and acrylic chemicals. Can be.

The conventional one-component or two-component grout injection pump includes a base, a first gear provided on an upper surface of the base and installed on a motor and a motor shaft, and a second gear rotated by the first gear and a surface of the second gear. A drive unit comprising an eccentric roller installed on an eccentric pin protruding from the slider and a slider for sliding forward and backward along the guide member by the rotation of the eccentric roller, and supported by a support member on the upper surface of the base and driven by the slider. And one or a pair of pumping parts having a piston, one or a pair of nozzle parts each having a spring and a ball provided at one end of the pumping part to control the ejection of the chemical liquid, and installed on the upper surface of the cylinder, respectively. It consists of a chemical liquid injection valve for supplying the chemical liquid into the cylinder, the chemical liquid injection valve 1 liquid Is provided through each of the two chemical liquid.

When the polyurethane is injected into cracks generated in various buildings using the one-component grout injection pump as described above, the viscosity of the polyurethane is high as honey, so even if the polyurethane is injected into the cracks at high pressure, the cracks can be reached even in the cracks. There is a disadvantage that can not be effectively prevented cracking. In particular, polyurethane must be foamed when it meets water, but the part that cannot meet water is continuously maintained in the undiluted state. However, when the polyurethane meets water and foams, the gas generated by the chemical reaction is forced out of the foam, so that a fine hole is generated in the polyurethane. Therefore, water leaks through the fine hole continuously and leaks. There is a defect in the construction, and therefore, the defect period of the waterproof construction is limited to two years.

Therefore, in order to solve the above problems, a two-component grout injection pump using simultaneously polyurethane and epoxy and acrylic contract solution is used. Such a two-component grout injection pump is used in high leakage pressure areas such as tunnels and various building basements, and has the advantage of maximizing the waterproofing effect as these chemicals meet and gelize by chemical reactions. Therefore, one-component or two-component grout injection pumps are selectively used according to cracking conditions of various buildings.

However, the conventional one-component grout injection pump as described above has the disadvantage of using only one chemical solution, and the two-component grout injection pump has the disadvantage of using only two chemical solutions. Here, the two-component grout injection pump may be removed and the one-component chemical solution may be injected and used. In this case, since the viscosity of the chemical liquid used in the one-component and two-component grout injection pumps is different, the inconvenience of having to use the piston and the nozzle inside the cylinder operated by the driving unit for a long time using a separate washing solution is followed. Therefore, it is not easy to use after washing at the construction site. However, even when the chemical solution is used after washing, the chemical liquid remaining in the cylinder and the nozzle part closes the cylinder and the nozzle part, causing the problem of frequently injecting the chemical liquid. As a result, there is a problem in that one or two liquid chemicals cannot be selected and injected into one conventional grout injection pump.

In particular, the slider that slides before and after the conventional grout injection pump as described above is in contact with the guide member, so that noise is generated. On the other hand, when the chemical liquid penetrates the slider and the guide member during the chemical injection operation, the slider Since the guide member is fixed to each other and there is also a disadvantage that the slide is not made before and after the slider. In addition, since the piston of the conventional grout injection pump is fixed to the slider or connected with a bolt, the frictional contact between the inner diameter of the cylinder and the outer diameter of the piston is severe, and as the outer diameter of the piston wears out, the service life is short and the piston needs to be frequently replaced. There are disadvantages.

Meanwhile, in injecting a chemical solution into the conventional grout injection pump as described above, the chemical liquid is poured into the chemical liquid container from the main chemical liquid container containing a large amount of the chemical liquid, and a hose is connected to the main chemical liquid container. There is a disadvantage that the end can not be used directly connected to the chemical liquid injection valve. The reason is that the chemical injection valve of the conventional grout injection pump does not have a structure that prevents the liquid from flowing back into the chemical container. Therefore, when the piston moves backward after moving, the chemical liquid flows back into the main chemical container. That's why.

In addition, since the chemical liquid injection valve installed in the conventional grout injection pump does not have a structure to prevent backflow of the chemical liquid into the chemical liquid container, the end of the hose is placed in the cleaning liquid container containing the cleaning liquid after removing the chemical liquid container installed in the chemical liquid injection valve. After the other end is installed in the chemical injection valve and washed, there is also a problem that the washing liquid is refluxed and cannot be washed.

Accordingly, an object of the present invention is to solve the conventional problems as described above, by allowing one grout injection pump to be injected into one or two liquid chemicals suitable for various field conditions. Therefore, it is possible to efficiently operate the pump to provide a grout injection pump that can significantly reduce the working time.

Another object of the present invention is to extend the life of the cylinder and the piston by connecting the slider and the piston as a switching member, and to install the bearings in contact with the inner wall of the guide member on the front and rear walls of the slider, so that the front and rear of the slider are the same. It is to provide a grout injection pump that can reduce noise during movement and prevent the slider and the guide member from being fixed by the chemical liquid. Another object of the present invention is to provide a backflow of the chemical liquid or the cleaning liquid by installing a ball and a spring inside the chemical liquid injection valve. By directly connecting the hose with the main liquid container or the washing liquid container containing a large amount of the chemical liquid, and the end of the hose directly connected to the chemical liquid injection valve, the chemical liquid is frequently applied to the chemical liquid container. Grout injecting with no need for easy cleaning To provide the pumping group.

The object is, according to the present invention, provided on a base, an upper surface of the base and protruding from a surface of the second gear and the second gear rotated by the first gear and the first gear installed on the motor and the motor shaft. A driving unit comprising an eccentric roller installed on the eccentric pin and a slider for sliding forward and backward along the guide member by the rotation of the eccentric roller, and supported by the support member on the upper surface of the base and driven by the slider to move the cylinder and the piston. And one or a pair of nozzles each having one or a pair of pumping parts, each having a spring and a ball provided at one end of the pumping part to control the ejection of the chemical liquid, and respectively installed on the upper surface of the cylinder into the cylinder. In the grout injection pump consisting of a chemical liquid injection valve for supplying a chemical liquid, by the support member Supported pumping unit is provided to install three at regular intervals left and right on the upper surface of the base, and the step formed in the front end of the slider and the end of the piston is installed to maintain a shorted state; At least one switch which is installed to be detachable from the top of the front end region of the slider to control the connection between the end of the piston and the front end of the slider to control the sliding of the piston forward and backward by the slider It is achieved by a grout injection pump characterized in that the injection of one or two liquid chemicals can be selected and injected by intermittently driving one or a pair of the pumping units including the member.

Here, the switching member is formed with a bolt hole at regular intervals on the upper surface, the hook groove provided on the bottom surface to be hooked to the step formed in the piston end, and to prevent the switching member from being separated from the end region of the piston It is preferable that the bolt is inserted into the bolt hole so as to be fastened to the top surface of the front end region of the slider.

And it is effective to include a plurality of bearings each provided by a plurality of pins on the front and rear side walls of the slider, one surface of which is in rolling contact with the inner wall of the guide member.

In the present invention, it is preferable that a ball and a spring are provided on the chemical liquid inlet hole side of the chemical liquid inlet valve to control the opening and closing of the chemical liquid inlet hole.

As described above, according to the present invention, by providing three pumping units, even one grout injection pump can be used to selectively inject one or two liquids according to various on-site situations, so that efficient crack blocking is possible. In addition, the working time can be greatly reduced. By connecting the slider and the piston as a switching member, the life of the cylinder and the piston can be extended, and bearings in contact with the inner wall of the guide member are installed on the front and rear walls of the slider. In addition to reducing noise when moving the slider, the slider and the guide member can be prevented from being fixed by the chemical. The present invention provides a counter flow of the chemical by installing a ball and a spring inside the chemical injection valve. Can be connected to the main chemical container containing a large amount of chemical Crack off work because that could in the end of the hose can be directly connected with the chemical liquid injection valve continues to work without losing your work has the advantage that effectively finished in a short time.

1 is a partially separated perspective view showing the appearance of the grout injection pump according to the present invention, Figure 2 is a cross-sectional view of the injection pump according to the present invention, Figure 3 when using the grout injection pump according to the present invention in a one-component type 4 is a plan view showing the grout injection pump according to the present invention when using a two-component type.

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

1 is a partially separated perspective view showing the appearance of the grout injection pump according to the present invention, Figure 2 is a cross-sectional view of the injection pump according to the present invention.

As can be seen from these figures, the grout injection pump according to the present invention has a base 2 and a driving part provided on the upper surface of the base, similar to the conventional grout injection pumping machine, which is driven by the base 2. The first gear 5 installed on the motor 3 and the motor shaft 4 provided on the upper surface and the second gear 6 rotated by the first gear 5 and installed on the shaft 6a. ) And a slider 10 that slides forward and backward in the pair of guide members 9. The eccentric roller 8 installed in the eccentric pin 7 protruding eccentrically from the surface of the second gear 6 is located in the guide groove 10a formed in the slider 10. Here, the eccentric roller 8 may use a bearing for smooth rolling contact and to reduce noise, and the upper surface of the driving unit is covered by the first cover 1a. Reference numeral 100 in the drawings is a handle used when moving the grout injection pump.

The present invention, unlike the conventional grout injection pumping machine, is provided with three pumping parts 20, 20 ', 20 "driven by a driving part on the upper surface of the base 2 at regular intervals.

Each of the pumping parts 20, 20 ′, 20 ″ is fixed by a support member 21 on the upper surface of the base 2 so as to be driven by the slider 10. Each of the pistons 23, 23 'and 23 " is installed inside the 22 " 22 " 22 ". Therefore, one grout injection pump according to the present invention can be used in accordance with the present invention. Two-part chemicals may be selected and used, details are described below.

According to the present invention, each nozzle portion 30, 30 ', 30 " is provided at the tip of each cylinder 22, 22', 22 ", and each nozzle hole 31 is provided in the nozzle portion. And a spring 32 and a ball 33 for intermittently ejecting the chemical liquid are formed therein, and the chemical liquid for supplying the chemical liquid into the cylinder on the upper surfaces of the cylinders 22, 22 'and 22 ". Each of the chemical liquid injection valves 40 may be provided, wherein the present invention is different from the conventional grout injection pump, wherein the chemical liquid injection holes 41 are formed in the chemical liquid injection valve 40 in which the chemical liquid inlet holes 41 are formed. By separately providing the ball 42 and the spring 43 to control the opening and closing of the main body, the main chemical liquid container (not shown) that contains a large amount of the chemical liquid after removing the existing chemical liquid container installed in the chemical liquid injection valve 40 The chemical liquid by connecting the hose and the hose directly to the chemical injection valve (40). It can be supplied as a product, so you can work continuously for a long time without interrupting work.

On the other hand, the present invention is a piston 23, 23 'installed in the pumping unit 20, 20' (20 ") that is driven by the drive unit 1, that is, cylinders 22, 22 'and 22" Two switching members 50 are provided to be hooked to each step 23a formed at each end region of the 23 "), and a cover 50a is provided in the upper region of the switching member 50. The switching member 50 uses only one selected and one is stored.

A bolt hole 51 is formed on an upper surface of the switching member 50, and a switching member 50 is formed on each step 23a formed at each end of the piston 23, 23 ′, 23 ″ on the bottom surface. Hook groove 52 is formed so that the hook can be hooked, and the bolt hole to prevent the switching member 50 is separated from the end region of the piston (23) (23 ') (23 ") Since the bolt 53 is inserted into the 51 and fastened to the upper surface of the tip region of the slider 10, the switching member 50 can be detached from the slider 10 as necessary.

In the present invention, having two switching members 50, one of the grout injection pump according to the present invention, as can be seen in Figure 3, selected one of the switching members 50 when used in one-component Is to switch only one piston 23 of the pistons 23, 23 ′, 23 ″ and not the other two. One grout injection pump according to the invention can be seen in FIG. 4. As it is, when used in a two-component type, two of the steps 23a of the pistons 23, 23 ', 23 " must be switched and the other one must not be switched. That is, the use of the two switching members 5 described above is present because the width of the hook groove 52 is different, the narrow hook groove 52 is the step 23a of one piston 23 It is used when walking, and the wide groove 23 is used when walking the step 23a of the pistons 23 'and 23 ".

Here, the slider 10, which is slid forward and backward by the drive unit, advances all the pistons 23, 23 ', 23 " when it is advanced, but the switching member (when the slider 10 is reversed by the drive unit). Since only 50 of the step 23a of the pistons 23, 23 'and 23 "of the piston 23a and the hooked piston are reversed, and the rest is advanced, only the piston is injected. This is possible and therefore it is possible to inject the chemical liquid into the crack through only the nozzle portion of the pumping portion connected with the piston.

According to the present invention, a plurality of bearings 61 are installed on the front and rear sidewalls of the slider 10 by using a plurality of pins 60, which are connected to the inner wall of the guide member 9. The rolling contact serves to reduce noise caused by mutual contact, and also prevents the slider 10 and the guide member 9 from being fixed by the chemical liquid because of the surface contact between the slider 10 and the guide member 9. Can be reduced by using the bearing 61.

By using the grout injection pump of the present invention configured as described above, cracks generated in walls or ceilings of buildings, or cracks, which are gradually increased due to the age of buildings, can be used in the form of one-component and two-component liquids. When one of the chemicals is to be injected and selected, the corresponding switching member is selected from the two switching members 50 and 50a, and the switching member is selected from the three pistons 23, 23 'and 23 ". After fastening to the step 23a of the motor, it is fixed to the upper surface of the base 2 as a bolt 53, and then the power of the motor 3 is turned on.

When the motor 3 is driven, the motor shaft 4 rotates, and accordingly, the second gear 6 rotates according to the rotation of the first gear 5, and the eccentric pin 7 moves to the rotational movement of the eccentric roller 8. As a result, the drive unit 1 is operated as the slider 10 slides forward and backward in the guide member 9, so that only the piston in which the step 23a is hooked by the switching member 50 is moved forward and backward.

Here, the present invention adopts a method of pushing and pulling the slider 10 and the pistons 23, 23 ', 23 " as the switching member 50, and thus, the cylinders 22, 22', 22 " ) And the life of the piston can be extended.

As described above, all the pistons 23, 23 ', 23 "are advanced when the slider 10 is advanced by operating the drive, but switching when the slider 10 is reversed by the drive. Since the member 50 retracts only the piston integral with the step 23a of the step 23a of the pistons 23, 23 'and 23 ", only the piston can inject and thus crack the chemical liquid. Is injected into.

As such, the grout injection pump according to the present invention is provided with three pumping units 20, 20 ', and 20 " so that one grout injection pump can be used for one or two liquid chemicals according to various field conditions. Since selective injection can be performed, efficient crack blocking is possible, and the working time can be greatly reduced, and the slider 10 is provided on the front and rear walls of the slider 10 in contact with the inner wall of the guide member 9. With the advantage of reducing the noise before and after the movement of the slider and the guide member 9 can be prevented from being fixed by the chemical liquid, the ball 42 and the spring 43 inside the chemical liquid injection valve 40 It is possible to prevent the backflow of the chemical solution by removing the existing chemical liquid reservoir installed in the chemical liquid injection valve 40, and then connect the main chemical liquid container and the hose containing a large amount of the chemical liquid and the end of the hose directly connected to the chemical liquid injection valveIt can be used to work continuously without interruption.

9: Slider member, 10: Slider, 20, 20 ', 20 ": Doping part, 22, 22', 22": Cylinder, 23, 23 ', 23 ": Piston, 23a: Stepped, 40: Chemical injection valve, 42: ball, 43: spring, 50: switching member, 51: bolt hole, 53: bolt, 60: pin, 61: bearing

Claims (4)

An eccentric roller and the eccentricity provided on a base, a first gear provided on an upper surface of the base and installed on a motor and a motor shaft, a second gear rotated by the first gear, and an eccentric pin protruding from a surface of the second gear. A driving part consisting of a slider sliding forward and backward along the guide member by rotation of the roller, and one or a pair of pumping parts supported by the support member on the upper surface of the base and driven by the slider and having a cylinder and a piston; And one or a pair of nozzle parts each provided at one end of the pumping part to include a spring and a ball for controlling the ejection of the chemical liquid, and chemical liquid injection valves respectively installed on the upper surface of the cylinder to supply the chemical liquid into the cylinder. In grout injection pumping machine,
The pumping part supported by the support member includes three installed at regular intervals on the upper surface of the base, and the stepped end formed on the front end of the slider and the end of the piston is installed so as to maintain a shorted state; ;
At least one switch which is installed to be detachable from the top of the front end region of the slider to control the connection between the end of the piston and the front end of the slider to control the sliding of the piston forward and backward by the slider A grout injection pump according to claim 1, wherein one or two liquid chemical injections can be selected and injected by intermittently driving one or a pair of pumping units including a member. The method of claim 1,
The switching member has a bolt hole formed at regular intervals on the upper surface, a hook groove provided on the bottom surface to be hooked to the stepped end formed in the piston end, and to prevent the switching member from being separated from the end region of the piston And a bolt inserted into the bolt hole and fastened to an upper surface of the front end region of the slider. The method of claim 1,
And a plurality of bearings, each of which is installed by a plurality of pins on the front and rear sidewalls of the slider and whose one surface is in rolling contact with the inner wall of the guide member. The method of claim 1,
The grout injection pump is provided with a ball and a spring for controlling the opening and closing of the medicine injection hole on the chemical liquid inlet hole side of the chemical liquid injection valve.

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