KR101885115B1 - Grouting device - Google Patents

Abstract

One embodiment according to the present invention relates to a grouting apparatus comprising a first inlet pipe for sucking a first injection liquid, a second inlet pipe for sucking a second injection liquid, a pair of parallel- A pair of second piston pumps connected in parallel to the second inlet pipe, a first outlet pipe connected to the pair of first piston pumps for discharging the first injection liquid, a pair of second piston pumps connected to the pair of second piston pumps, A second outlet pipe connected to discharge the second injection liquid, and a driving unit for driving the first piston pump and the second piston pump.

Description

GROUTING DEVICE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grouting apparatus, and more particularly, to a grouting apparatus capable of stably supplying an infusion liquid to cracks in concrete or the like.

Generally, concrete is cracked due to damage or deterioration due to internal or external causes such as load, vibration and impact, as well as natural environment such as snow, rain and wind. The durability, and the waterproofing property, in proportion to the flow of the water.

Therefore, in order to maintain the condition of all concrete, repair / reinforcement work for crack prevention should be continued. As a method of repairing / reinforcing cracks in concrete, a plurality of injection liquids are injected along the cracks of the concrete and hardened, so that the cracks can be buried. Here, filling the crack by injecting the injection liquid into the crack is called "grouting or grouting ".

Korean Patent Laid-Open No. 2010-0013449, a two-component grout injection pumping apparatus includes a pair of pumps. That is, the conventional grout injection pumping apparatus includes a pair of pumps for discharging two injected liquids. Here, at least one of the pair of pumps may be stuck or otherwise not operated. Therefore, there is a problem that at least one of the two injection liquids may not be injected into the crack.

Korean Patent Publication No. 10-2010-0013449

The grouting apparatus according to an embodiment of the present invention provides a grouting apparatus capable of stably supplying an injection liquid to a crack even if a pump failure occurs.

According to an aspect of the present invention, there is provided a grouting apparatus including a first inflow pipe for sucking a first infusion liquid, a second inflow pipe for sucking a second infusion liquid, A pair of first piston pumps connected in parallel to the pipe, a pair of second piston pumps connected in parallel to the second inlet pipe, a second piston pump connected to the pair of first piston pumps, A second outflow pipe connected to the pair of second piston pumps for discharging the second infusion liquid, and a driving unit for driving the first piston pump and the second piston pump, do.

Here, the first inflow pipe can suck the first infusion liquid, and the second infusion pipe can suck the second infusion liquid. A pair of first piston pumps connected to the first inlet pipe and the first outlet pipe are arranged in parallel. Further, a pair of second piston pumps connected to the second inlet pipe and the second outlet pipe are arranged in parallel. Therefore, even if one of the pair of first piston pumps can not suck the first injection liquid by sticking or the like, the first injection liquid can be sucked by the other first piston pump. Further, even if any one of the pair of second piston pumps can not suck the second injection liquid by sticking or the like, the second injection liquid can be sucked by the other second piston pump.

The driving unit may include a driving cylinder that linearly moves, the driving cylinder sucks and drives one of the pair of first piston pumps, and drives the other of the pair of first piston pumps to discharge, Wherein one of the piston pumps is driven to be sucked and the other is driven to be discharged.

The drive cylinder can drive one of the pair of first piston pumps and the other one of the pair of first piston pumps in reverse. Therefore, during the reciprocating motion of the driving cylinder, the first injection liquid can be discharged through the first outlet pipe by the pair of first piston pumps. In other words, the pulsation generated at the time of discharging the first infusion liquid can be alleviated. Further, the drive cylinder can drive one of the pair of second piston pumps and the other of the pair of second piston pumps in reverse. Therefore, the pulsation generated at the time of discharging the second infusion liquid can be alleviated.

The driving unit may include a first connection link that connects any one of the pair of first piston pumps and the pair of second piston pumps and is connected to the cylinder and linearly moves, A second connection link rotatably connected to the other of the pair of first piston pumps and a second connection link rotatably connected to the other of the first connection link and the second piston pump, And a connection link.

Either one of the pair of first piston pumps and one of the pair of second piston pumps can be sucked or driven simultaneously by the first connecting link. The second connecting link may drive the other one of the pair of first piston pumps in accordance with the movement of the first connecting link. In addition, the third connection link may drive the other one of the pair of second piston pumps in accordance with the movement of the first connection link. Here, by the second connection link and the third connection link, the first and second piston pumps connected to the second connection link and the third connection link are driven in reverse to the first and second piston pumps connected to the first connection link .

The apparatus may further include a first bypass valve for bypassing the first injection liquid flowing out from the first pump and a second bypass valve for bypassing the second injection liquid flowing out from the second pump .

The first bypass valve may bypass the first injection liquid flowing out of the first piston pump. Further, the second bypass valve can bypass the second injection liquid flowing out from the second piston pump. That is, the first bypass valve can adjust the amount of the first injection liquid flowing out of the first piston pump. Further, the second bypass valve can adjust the amount of the second injection liquid flowing out from the second piston pump. Therefore, the ratio of the first and second infusion solutions can be adjusted.

The grouting apparatus further includes a support frame, the second connection link is connected to the support frame by a first hinge and rotates around the first hinge, and the third connection link is connected to the support frame by a first hinge, 2 hinges and rotates about the second hinge.

The second connecting link is rotated about the first hinge so that one end of the second connecting link connected to the first connecting link and the other end of the second connecting link connected to the first piston pump can move in the vertical reverse direction. Thereby, each of the pair of first piston pumps can be reversely driven. In addition, since the third connecting link is rotated about the second hinge, one end of the third connecting link connected to the first connecting link and the other end of the third connecting link connected to the second piston pump can move in the vertical reverse direction. Thereby, each of the pair of second piston pumps can be reversely driven.

The first inflow pipe can suck the first infusion liquid and the second infusion pipe can suck the second infusion liquid. A pair of first piston pumps connected to the first inlet pipe and the first outlet pipe are arranged in parallel. Further, a pair of second piston pumps connected to the second inlet pipe and the second outlet pipe are arranged in parallel. Therefore, even if any one of the pair of first piston pumps can not suck the first injection liquid by sticking or the like, the first injection liquid can be sucked by the other first piston pump. Further, even if any one of the pair of second piston pumps can not suck the second injection liquid by sticking or the like, the second injection liquid can be sucked by the other second piston pump.

Further, the drive cylinder can drive one of the pair of first piston pumps and the other of the pair of first piston pumps in reverse. Therefore, during the reciprocating motion of the driving cylinder, the first injection liquid can be discharged through the first outlet pipe by the pair of first piston pumps. In other words, the pulsation generated at the time of discharging the first infusion liquid can be alleviated. Further, the drive cylinder can drive one of the pair of second piston pumps and the other of the pair of second piston pumps in reverse. Therefore, there is an effect that the pulsation generated upon ejection of the second infusion liquid can be alleviated.

Further, the first bypass valve may bypass the first injection liquid flowing out from the first piston pump. Further, the second bypass valve can bypass the second injection liquid flowing out from the second piston pump. That is, the first bypass valve can adjust the amount of the first injection liquid flowing out of the first piston pump. Further, the second bypass valve can adjust the amount of the second injection liquid flowing out from the second piston pump. Accordingly, there is an effect that the ratio of the first and second infusion solutions can be adjusted.

1 is a perspective view showing a grouting apparatus according to an embodiment of the present invention.
2 is a front view of the grouting apparatus shown in Fig.
FIG. 3 is a view showing one embodiment of the first and second inlet pipes and the first and second outlet pipes shown in FIG. 1;
4 is a view illustrating a bypass valve according to an embodiment of the present invention.
5 is a view showing one embodiment of the first and third sealing parts according to the present invention.
6 and 7 are views for explaining the operation of a grouting apparatus according to an embodiment of the present invention.

Hereinafter, a grouting apparatus 10 according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a grouting apparatus 10 according to an embodiment of the present invention, FIG. 2 is a front view of the grouting apparatus 10 shown in FIG. 1, and FIG. 3 is a cross- The first and second outflow pipes 100 and 200 and the first and second outflow pipes 500 and 600, respectively.

1 to 3, a grouting apparatus 10 according to an embodiment of the present invention includes a first inlet pipe 100, a second inlet pipe 200, a pair of A second piston pump 400 connected to the second inlet pipe 200, a first outlet pipe 500 connected to the first piston pump 300, a second piston pump 400 connected to the first piston pump 300, 400 and a second outlet pipe 600 and a driving unit 700 connected to the second outlet pipe 600.

The first inlet pipe 100 and the second inlet pipe 200 may include tubes or hoses having a predetermined length. The first inflow pipe 100 can suck the first infusion liquid. Further, the second inflow pipe 200 can suck the second infusion liquid. The first inlet pipe 100 is connected to a first piston pump 300 to be described later and the second inlet pipe 200 is connected to a second piston pump 400 to be returned. In one embodiment, the first inlet pipe 100 may have a T-shape or a Y-shape, which may be connected to each of the pair of first piston pumps 300. In addition, the second inlet pipe 200 may have a T-shape or a Y-shape, which may be connected to each of the pair of second piston pumps 400.

In another embodiment, a T-shaped or Y-shaped branch (not shown) may be disposed between the first inlet pipe 100 and the pair of first piston pumps 300. Further, a T-shaped or Y-shaped branch pipe (not shown) may be disposed between the second inlet pipe 200 and the pair of second piston pumps 400. Therefore, the first infusion liquid flowing out of the first inflow pipe 100 can be branched into the pair of first piston pumps 300 through the branch pipe (not shown). In addition, the second injection liquid flowing out from the second inlet pipe 200 can be branched into the pair of second piston pumps 400 through the branch pipe.

The pair of first piston pumps 300 may be connected to the first inlet pipe 100 in parallel. That is, the pair of first piston pumps 300 may be arranged in parallel. Here, the first piston pump 300 may include a first pump body 310 and a first pumping rod 330. The first pumping rod 330 can be inserted into the first pump body 310 and linearly moved. In addition, the first piston pump 300 may have a first inlet 370 and a first outlet 390. Specifically, the first pump body 310 may have a first inlet 370 through which the first injection liquid flows and a first outlet 390 through which the first injection liquid flows.

The pair of second piston pumps 400 may be connected to the second inlet pipe 200 in parallel. That is, the pair of second piston pumps 400 may be arranged in parallel. Here, the second piston pump 400 may include a second pump body 410 and a second pumping rod 430. The second pumping rod 430 may be inserted into the second pump body 410 and linearly moved. In addition, the second piston pump 400 may have a second inlet 470 and a second outlet 490. Specifically, the second pump body 410 may have a second inlet 470 through which the second injection liquid flows and a second outlet 490 through which the second injection liquid flows.

Even if one of the pair of first piston pumps 300 fails to suck the first injection liquid by sticking or the like because the pair of first piston pumps 300 are arranged in parallel, The first injection liquid can be sucked by the first piston pump 300b. Further, since the pair of second piston pumps 400 are arranged in parallel, even if any one of the pair of second piston pumps 400 does not suck the second injection liquid by sticking or the like, And the second injection liquid can be sucked by one second piston pump 400b.

The first outlet pipe 500 may be connected to the first outlet 390 of the first piston pump 300. The second outlet pipe 600 may be connected to the second outlet port 490 of the second piston pump 400. The first and second outlet pipes 500 and 600 may have a tube or hose shape having a predetermined length. In one embodiment, the first outlet tube 500 may have a T-shape or a Y-shape, which may be connected to each of the pair of first piston pumps 300. In addition, the second outlet pipe 600 may have a T-shape or Y-shape, which may be connected to each of the pair of second piston pumps 400.

In another embodiment, a T-shaped or Y-shaped branch (not shown) may be disposed between the second outflow pipe 500 and the pair of first piston pumps 300. A T-shaped or Y-shaped branch pipe (not shown) may be disposed between the second outflow pipe 500 and the pair of second piston pumps 400. Accordingly, the first injection liquid flowing out from the first outlet 390 can be introduced into one first outlet pipe 500 through a branch pipe (not shown). In addition, the second injection liquid flowing out from the second outlet 490 may be introduced into one second outlet pipe 600 through the branch pipe.

Meanwhile, the first piston pump 300 and the second piston pump 400 may include at least one check valve (not shown). Specifically, the check valve may be disposed in the first inlet 370 and the first outlet 390. In addition, the check valve may be disposed in the second inlet 470 and the second outlet 490. The check valve can be opened or closed by the first or second pumping rods 330, 430 according to its structure. For example, when the check valve disposed in the first inlet port 370 is shut off and the check valve disposed in the first outlet port 390 is opened, the first piston pump 300 discharges the first injection liquid do. Alternatively, when the check valve disposed in the first inlet port 370 is opened and the check valve disposed in the first outlet port 390 is shut off, the first piston pump 300 is in a state of being inhaled .

The driving unit 700 drives the first piston pump 300 and the second piston pump 400. Here, the driving unit 700 may include a driving cylinder 710, a first connecting link 730, a second connecting link 750, and a third connecting link 770. The driving cylinder 710 includes a driving rod 711 which is inserted and moved therein. The driving rod 711 is connected to the first connecting link 730.

The first connection link 730 connects any one of the pair of first piston pumps 300 and one of the pair of second piston pumps 400. In an embodiment, a first piston pump 300 may be connected to one end of the first connection link 730, and a second piston pump 400 may be connected to the other end. One end of the driving rod 711 may be connected to the first connecting link 730 so as to be disposed between the first piston pump 300 and the second piston pump 400.

The second connection link 750 connects the other one of the pair of first piston pumps 300 to the first connection link 730. Here, the second connection link 750 may be rotatably connected to the first piston pump 300 and the first connection link 730. The third connection link 770 connects the other one of the pair of second piston pumps 400 to the first connection link 730. Here, the third connection link 770 may be rotatably connected to the second piston pump 400 and the first connection link 730.

Therefore, either one of the pair of first piston pumps and one of the pair of second piston pumps can be sucked or driven simultaneously by the first connecting link. The second connecting link may drive the other one of the pair of first piston pumps in accordance with the movement of the first connecting link. In addition, the third connection link may drive the other one of the pair of second piston pumps in accordance with the movement of the first connection link. That is, by means of the second connecting link and the third connecting link, the first and second piston pumps connected to the second connecting link and the third connecting link are driven opposite to the first and second piston pumps connected to the first connecting link .

The driving unit 700 may further include a first auxiliary link 731, a second auxiliary link 735, a third auxiliary link 751 and a fourth auxiliary link 771. The first auxiliary link 731 may be rotatably connected to the first connection link 730 and the second connection link 750, respectively. The second auxiliary link 733 can be pivotally connected to the first connection link 730 and the third connection link 770, respectively. The third auxiliary link 751 may be pivotally connected to the second connection link 750 and the first piston pump 300a, respectively. The fourth auxiliary link 771 may be rotatably connected to the third connection link 770 and the second piston pump 400a, respectively.

The first auxiliary link 731 helps smooth rotation of the first connection link 730 and the second connection link 750. The second auxiliary link 733 helps smooth rotation of the first connection link 730 and the third connection link 770. In addition, the third auxiliary link 751 facilitates smooth rotation of the second connection link 750 and the first pumping rod 330. The fourth auxiliary link 771 helps smooth rotation of the third connection link 770 and the second pumping rod 430.

Further, the grouting apparatus 10 according to an embodiment of the present invention may further include a support frame 900. The support frame 900 may have a bar shape. The second connection link 750 and the third connection link 770 may be pivotally connected to the support frame 900. Specifically, the support frame 900 may be connected by the first hinge between both ends of the second connection link 750. The second connection link 750 rotates about the first hinge. In addition, the support frame 900 can be connected by the second hinge between both ends of the third connection link 770. [ The third connecting link 770 rotates about the second hinge.

The second connection link 750 is rotated about the first hinge so that one end of the second connection link 750 connected to the first connection link 730 and the second connection link 750 connected to the first piston pump 300a 750 can be moved in the vertical opposite direction. Thereby, each of the pair of first piston pumps 300 can be reversely driven. Since the third connection link 770 is rotated around the second hinge, the third connection link 770 is connected to one end of the third connection link 770 connected to the first connection link 730 and the third connection link 770 connected to the second piston pump 400a. The other end of the link 770 can move in the vertical opposite direction. Thereby, each of the pair of second piston pumps 400 can be reversely driven.

4 is a view showing a bypass valve 800 according to an embodiment of the present invention.

Referring to FIGS. 2 and 4, the grouting apparatus 10 according to an embodiment of the present invention may further include a bypass valve 800. The bypass valve 800 may include a first bypass valve 810 and a second bypass valve 830. The first bypass valve 810 may be connected to the first outlet 390 of the first piston pump 300. The second bypass valve 830 may be connected to the second outlet 490 of the second piston pump 400. That is, the first bypass valve 810 may be connected to each of the pair of first piston pumps 300. In addition, the second bypass valve 830 may be connected to each of the pair of second piston pumps 400. Accordingly, the grouting apparatus 10 may include a total of four bypass valves 800. [

The first bypass valve 810 may bypass the first injection liquid flowing out of the first piston pump 300. In addition, the second bypass valve 830 can bypass the second injection liquid flowing out from the second piston pump 400. [ That is, the first bypass valve 810 can control the amount of the first injection liquid flowing out from the first piston pump 300. In addition, the second bypass valve 830 can adjust the amount of the second injection liquid flowing out from the second piston pump 400. Therefore, the ratio of the first and second infusion solutions can be adjusted.

5 is a view illustrating one embodiment of the first and second sealing portions 350 and 450 according to the present invention.

Referring to FIG. 5, the first piston pump 300 may further include a first sealing portion 350. In addition, the second piston pump 400 may further include a second sealing portion 450. Here, the first sealing portion 350 and the second sealing portion 450 may have the same structure. Accordingly, one embodiment of the first sealing portion 350 described below may be applied to the second sealing portion 450 as well.

The first sealing portion 350 may be disposed between the first pump body 310 and the first pumping rod 330. In particular, the first sealing portion 350 may be disposed on the upper portion of the first pump body 310. The first sealing portion 350 may include a sealing member 351, a support member 353, and an oil containing member 335.

The sealing member 351 seals between the first pumping rod 330 and the first pump body 310 to prevent leakage of the first injection liquid. The sealing member 351 may comprise silicon or Teflon (PTFE). The support member 353 can support at least a part of the sealing member 351. Further, the oil-containing member 335 to be described later can be supported. The oil containing member 335 may comprise a sponge containing oil. The oil containing member 335 envelops the first pumping rod 330. Thus, oil can be applied to the outer circumferential surface of the first pumping rod 330 during the movement of the first pumping rod 330. The oil can be replenished through the gap between the first pumping rod 330 and the first pump body 310.

6 and 7 are views for explaining the operation of the grouting apparatus 10 according to an embodiment of the present invention.

Referring to FIGS. 6 and 7, the first connecting link 730 can be moved up and down according to the linear movement of the driving rod 711 inserted in the driving cylinder 710. For example, when the first connecting link 730 is moved upward, the second connecting link 750 and the third connecting link 770 each rotate about the first and second hinges connected to the supporting frame 900, do. Accordingly, one end of the second connection link 750 connected to the first connection link 730 rotates upward, and the other end of the second connection link 750 connected to the first pumping rod 330 rotates downward do. Also, one end of the third connection link 770 connected to the first connection link 730 is rotated in an upward direction, and the other end is rotated in a downward direction. Therefore, any one of the pair of first piston pumps 300 can be suction-driven and the other can be discharge-driven. Similarly, any one of the pair of second piston pumps 400 may be suction-driven and the other may be discharge-driven.

Alternatively, the first connecting link 730 can be moved down by the driving cylinder 710. [ In this case, one end of the second connection link 750 connected to the first connection link 730 may be rotated in the downward direction and the other end may be rotated in the upward direction. In addition, one end of the third connection link 770 connected to the first connection link 730 may be rotated in the downward direction and the other end may be rotated in the upward direction. Thus, as the first connecting link 730 is moved upward, the first and second piston pumps 300 and 400 sucked and driven are discharged and driven. As the first connecting link 730 is moved upward, the first and second piston pumps 300 and 400, which are driven to be discharged, are sucked and driven. That is, the first and second piston pumps 300 and 400 can simultaneously perform the suction and discharge operations regardless of the upward and downward movement of the first connection link 730.

Although the invention made by the present inventors has been described concretely with reference to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

The present invention can be applied to a technique relating to grouting to fill cracks in concrete and the like.

10: Grouting device
100: first inlet pipe
200: second inlet pipe
300: first piston pump
400: second piston pump
500: First outflow pipe
600: Second outflow pipe
700:
800: Bypass valve
900: Support frame

Claims (5)

A first inflow pipe for sucking the first infusion liquid;
A second inflow pipe for sucking the second infusion liquid;
A pair of first piston pumps connected in parallel to the first inlet pipe;
A pair of second piston pumps connected in parallel to the second inlet pipe;
A first outlet pipe connected to the pair of first piston pumps to discharge the first injection liquid;
A second outlet pipe connected to the pair of second piston pumps for discharging the second injection liquid; And
And a driving unit for driving the first piston pump and the second piston pump,
Wherein the driving unit includes a driving cylinder that linearly moves,
The driving cylinder includes:
One of the pair of first piston pumps is driven to suck and the other is driven to discharge,
Wherein one of the pair of second piston pumps is sucked and driven, and the other is driven to discharge. delete The method according to claim 1,
The driving unit includes:
A first connection link connecting any one of the pair of first piston pumps and the pair of second piston pumps and connected to the cylinder and linearly moving;
A second connection link rotatably connected to the first connection link and the other one of the pair of first piston pumps, respectively; And
Further comprising a third connection link pivotally connected to the first connection link and to the other one of the pair of second piston pumps, respectively. The method according to claim 1,
A first bypass valve for bypassing the first injection liquid flowing out from the first piston pump; And
And a second bypass valve for bypassing the second injection liquid flowing out from the second piston pump. The method of claim 3,
The grouting device further comprises a support frame,
The second connection link is connected to the support frame by a first hinge and rotates around the first hinge,
And the third connection link is connected to the support frame by a second hinge and is rotated about the second hinge.

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