KR101342897B1 - A pump for injecting waterproofing material - Google Patents

Abstract

The present invention relates to an injection pump for injecting waterproofing fluid. The injection pump includes a housing containing: two driven gears (120) rotated by being engaged with a drive gear rotating by a motor of a driving unit; a connection rod (125) coupled to a connection piece (121) that is eccentrically mounted on the top face of each of the drive gears by a pin (122); and two injectors (130) connected to the connection rod to suck in waterproofing fluid from the a waterproofing fluid tank and discharge the waterproofing fluid for injection by a piston (132) reciprocating in a cylinder (131) on which the waterproofing fluid tank is mounted, wherein the driving unit (110) is configured to drive the two driven gears (120) independently so that each of the two injectors (130) can discharge a waterproofing material individually with an increased discharge pressure in a predetermined ratio of discharge amount, and each of the driven gear, which rotates being engaged with the driving gear (111) provided in each driving unit, rotates to reciprocate the piston of a corresponding injector. Therefore, the injection pump can be universally used for injecting first and second waterproofing fluids, reduce a burden of purchasing injection pumps, and provide enhanced utility and usability.

Description

Injection pump for water supply {A PUMP FOR INJECTING WATERPROOFING MATERIAL}

The present invention relates to an injection pump for supplying a waterproofing liquid, and in particular, can be used for the injection of a one-component or two-component waterproofing composition which is forcibly injected into a space in a crack for repairing a crack generated in a building, and the discharge rate of the two-component waterproofing liquid. The present invention relates to an injection pump improved to be freely adjustable so that it can be used universally for various compositions of waterproofing liquids.

In general, the cracks of concrete structures are due to structural cracks due to poor construction, physical damage, deterioration due to steel corrosion and impact, plastic shrinkage and settlement cracks, dry shrinkage cracks, and freeze-thawing. There are nonstructural cracks such as cracks caused by the cracks. These cracks cause problems such as structural defects of the concrete structure, deterioration of durability, damage to the exterior, and deterioration of waterproofing performance. Therefore, it is necessary to deal with cracks quickly and appropriately. .

As a method of repairing cracks in concrete structures, there is a method of forming a coating film by applying a coating film elastic waterproofing material, polymer cement paste, filler, etc. on the cracks, but in this case, there is an advantage of easy construction, whereas the cracks are not processed because the inside of the crack is not processed. It can be diffused, and it is difficult to track the movement of cracks from the outside.In the case of the injector grouting method, there is a method of repairing, reinforcing, and waterproofing the structure by injecting a synthetic waterproofing liquid into the crack of the concrete structure. .

As such, the injection pump for injecting the waterproofing liquid causes suction and discharge of the waterproofing liquid from the waterproofing liquid supply tank by a piston reciprocating in the cylinder by the driving means. As an example of such an injection pump, the Korean Patent Application Publication shown in FIG. The two-component grout injection pump 10 disclosed in No. 10-2010-0013449 (published Feb. 10, 2010) is provided with a pair of chemical liquid containers installed on the base and accommodating a waterproofing liquid and a curing agent, and a driving part installed on the surface of the base. And a pair of pumps 60 provided on the base, and the driving portion provided on one side of the surface of the base is engaged with, for example, the main gear 43 and the main gear provided on the motor shaft 42 of the power drill. And the rotational movement of the bearing assembly 47 and the bearing assembly installed by the pin 46 so as to be eccentric on the surface of the driven gear 45 and the follower installed on the rotating shaft 44 at the base. It consists of a guide 48 for converting in a backward straight motion, and when the pumping bar 70 connected to the piston 61 driven by the drive unit is retracted, the chemical liquid from the chemical container to the chemical liquid suction groove 71 of the pump 60 When the liquid is introduced and the pumping bar 70 moves forward, the chemical liquid is discharged through the nozzle 80 and injected into the crack through an injector not shown in the drawing.

The conventional injection pump can be used only for the injection of the two-component waterproof liquid, and the chemical liquid suction groove 71 by the reciprocating motion of the pumping bar 70 connected to each of the two pistons 61 connected to the guide 48 ), There is a problem that the two liquids, that is, the amount of the chemicals sucked into and discharged into the chemical liquid containers cannot be used for injection of two-component waterproof liquid components mixed in different ratios.

In addition, in the case of the conventional injection pump, the two pistons 61 and the pumping bar connected to the guide 48 by rotating the driven gear engaged to the main gear provided on the output shaft of one power drill motor as a driving means ( 70) They reciprocate to inhale and discharge the chemical liquid. The motor capacity of a commercially available electric drill is that the output of the chemical liquid is not smooth due to the weak earth power generated by reciprocating the pumping bars by rotating two main gears. In addition, there was a problem that can not be perfect waterproof construction as the drug can not be injected deep into the crack.

On the contrary, it can be considered to use a motor of a larger capacity without using a motor of a drill, but in this case, the size of the overall injection pump device is increased by installing a motor having a large capacity, thereby increasing the manufacturing cost. Increasing the weight makes it difficult to transport and move the equipment, causing problems with crack repairs.

Korean Unexamined Patent Publication No. 10-2010-0013449 (published Feb. 10, 2010)

An object of the present invention is to independently drive the main gear and the piston connected to the main gear to be used universally in the injection of one-component and two-component waterproofing as a single injection pump to solve the problems caused by the conventional injection pump described above. In addition, to provide an injection pump for supplying a waterproofing liquid of an improved structure having a sufficient earth output capable of discharging the waterproofing liquid from the waterproofing tank to a deep position of the crack without causing an increase in the overall size.

Another object of the present invention is to provide an injection pump for supplying a waterproofing liquid that can adjust the ratio of the relative discharge amount of the two-component waterproofing liquid and can be used for the injection of the waterproofing liquid of various compounding ratios.

In order to achieve the above object, the injection pump for supplying a waterproofing liquid according to the present invention includes two main gears that rotate in engagement with a drive gear rotated by a motor of a driving unit, and a connection piece eccentrically mounted on an upper surface of each main gear gear. Injection pump for supplying a waterproofing liquid with a connecting rod coupled to the connecting rod, and having two injectors injecting and discharging the waterproofing liquid from the waterproofing tank by a reciprocating piston connected to the connecting rod and equipped with a waterproofing tank. To

The drive unit is arranged to drive the two main gears individually so as to discharge the waterproofing components in the two injectors separately at a ratio of a predetermined discharge amount at an increased discharge pressure, and the drive gears provided in the respective drive units. It is configured to reciprocate the pistons of the corresponding injectors respectively by the rotation of the respective main gear which rotates in engagement with and to inject and discharge the waterproofing component from the waterproofing tank separately.

Piston stroke in cylinders of the corresponding injectors in conjunction with the main gear which is changed by forming holes in a plurality of radially spaced positions on the upper surface of the main gear, and mounting the pin of the connecting piece in a hole selected from the holes It can be configured to adjust the compounding ratio of the waterproofing liquid components supplied by the injectors by adjusting the amount discharged by the distance change.

The driving unit includes two power drills for driving the two main gears, respectively, to separately discharge the waterproofing components from the two injectors at a predetermined discharge rate at an increased discharge pressure. The pistons of the corresponding injectors are reciprocated by the rotation of the respective main gears that rotate in engagement with the drive gears provided on the output shaft to individually introduce and discharge the waterproofing liquid components from the waterproofing tank. An end of the output shaft projecting downward from the gears is rotatably supported in a bearing provided at the bottom of the housing.

When injecting a one-component watertight liquid, only one of the two power drills is driven, and a single main gear that is engaged with the drive gear provided on the output shaft is rotated, and the watertight liquid tank mounted on the cylinder of one injector corresponding to the main gear gear It may also be configured to discharge the one-pack waterproof liquid contained therein.

According to the present invention, the driving unit is provided in each of the two main gears for driving the two injectors can drive the injector separately to perform the injection of the one-component and two-component waterproof liquid, a plurality of the main gear The amount of the waterproofing liquid components discharged from the two injectors is changed according to the positions of the pins that form the holes at predetermined intervals and the connecting rods connected to the piston of the injector, and the pins for mounting the eccentrically provided connecting pieces. Since the compounding ratio can be easily adjusted, it can be universally used for the injection of the one-component and two-component waterproof liquids, thereby reducing the burden of purchasing the injection pump and improving the product utility and convenience of the injection pump.

1 is a schematic perspective view of a conventional injection pump.
Figure 2 is a perspective view of the injection pump according to the present invention.
3 is a perspective view of the cover removed to show the internal configuration of the injection pump of FIG.
4 is a longitudinal cross-sectional view of FIG.
5 is a plan view showing a plurality of holes for mounting a pin for fixing a connecting piece to the main gear to adjust the stroke distance of the piston in the cylinder of each injector.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

The injection pump 100 of the present invention, which is shown in perspective view in FIG. 2 and in which the cover part is removed in FIG. 3, is independently rotated by two driving units 110 and each of the driving units, and the gear is formed on the outer circumferential surface thereof. It is connected to the connecting rod 125, one end of which is connected to the pin 122 at the end of the two main gear gear 120 having a disc shape, the connecting piece 121 is mounted eccentrically on the upper surface of each main gear gear to the waterproof liquid tank The housing 101 includes two injectors 130 for injecting and injecting a waterproofing liquid from the injector.

The drive unit 110 is composed of two ordinary power drills, the drive gear 111 is provided on the output shaft of each power drill, the main gear gear meshed with the drive gear of the output shaft rotated by the motor of each power drill. 120 is rotated. An end portion 112 protrudes downward from the drive gears 111 mounted on the output shaft of the power drill at the bottom of the housing, and a bearing 113 is provided at a position opposite to the output shaft end portion 112 to provide an output shaft. The end 112 is stably supported while being fitted to the bearing 113 to stably rotate the main gear meshing with the drive gear 111 so as to discharge a certain amount of the waterproofing liquid components from the injector described later. do.

As described above, as the main gears are driven by the motors of the two drill drills, sufficient discharge pressure is obtained to inject the waterproof liquid components ejected by the injectors connected to the main gears deeply into the narrow gaps of the cracks. As a result, the depth of injection of the liquid into the crack is improved compared to discharging the two waterproof liquid components by driving two main gears with a single electric drill, thereby performing a more complete waterproof operation.

In addition, since two main gears can be driven independently, it can be used to inject one-component waterproofing and two-component waterproofing. Therefore, in the conventional injection pump, each injection pump should be provided for one-component or two-component waterproofing. The problem is solved, which alleviates the user burden.

The injector 130 includes a cylinder 131 to which the waterproofing liquid tank is mounted and the waterproofing liquid flows into the inner space as shown in the cross-sectional view of FIG. 4, and a piston 132 provided to reciprocate in the cylinder.

As shown in a plan view enlarged in FIG. 5, when the main gear 120 is rotated, the main gear gear eccentrically rotates on the upper surface of the main gear gear and is freely rotatably mounted to the pin 122. The circular motion of the pin 122 of the rotation is to be made. The connecting rod 125, one end of which is connected to the ends of the connecting piece 121 by pins 122, 122 ', and 122 ", has a linear reciprocating motion with a stroke of displacement corresponding to the diameter of the circle formed by the rotation of the connecting piece. do.

The piston 132 has a circular trajectory as shown by a dotted line in the drawing as the positions of the pins 122, 122 ′ and 122 ″ of the connecting piece 121 in the main gear are changed accordingly. The piston of the connecting piece and the injector has a stroke length corresponding to the diameter of the circular trajectory formed by the pins 122, 122 ', and 122 ", and during one rotation of the pin, the piston moves back into the cylinder space 134. And the reciprocating motion of the forward motion to discharge the waterproofing component.

When the piston is retracted, as the cylinder interior space 134 is in a vacuum state, the waterproof liquid component from the waterproof liquid storage container 150 is introduced into the cylinder interior space 134 and filled, and then the piston 132 of the cylinder. As this advances, the waterproofing liquid component filled in the inner space of the cylinder is discharged through the nozzle 141. The nozzle is formed in the form of a coupler, the waterproofing liquid is injected into the crack through an injector or injector mounted on the nozzle to obtain a waterproof effect.

If the positions of the pins 122, 122 'and 122 "rotatably mounting the connecting piece 121 in the two main gears are the same, the stroke distance of the piston 132 in the two cylinders 131 is the same. This means that the discharge amount of the waterproofing liquid components discharged from the two injectors is the same, and thus the waterproofing liquid components of the waterproofing liquid storage containers mounted on the cylinders 131 of the respective injectors are mixed and used in the same amount.

However, when the mixing ratio of the waterproofing liquid components stored in each of the two waterproofing liquid storage containers is different, the amount of the waterproofing liquid components discharged from the cylinder by the piston must be changed. Since the discharge amount of the waterproofing liquid component discharged from each injector cylinder is expressed by the cross-sectional area of the cylinder inner space and the stroke distance of the piston, the two waterproofing liquid components contained in the waterproofing liquid storage containers connected to the two injectors by adjusting the stroke distance of the piston The discharge amount of these can be adjusted. This blending ratio is set in advance in consideration of the blending ratio of the components in the two-component waterproofing liquids to be used.

To this end, in the present invention, the positions of the pins for mounting the connection pieces in the main gears are different. That is, a plurality of holes 135 for pin fixing for eccentrically mounting the connecting piece in the main gear is formed in a plurality of spaced apart at predetermined intervals in the radial direction from the upper surface of the main gear.

According to the positions of the holes, the diameter of the circular trajectory that is formed when the pin fixed to the hole rotates the main gear is different, thereby changing the stroke distance of the piston connected to the end of the connecting rod connected to the pin, and consequently the stroke distance to the piston. Correspondingly, the amount of the waterproof liquid component discharged from the cylinder can be changed by the amount corresponding to the volume change of the inner space of the cylinder. For example, if three holes are formed in each of the two main gears, the amount of the liquid solution components discharged from each of the two injectors may be three, and the combination may have nine adjustable compounding ratios.

As described above, in the present invention, the mixing ratio of the waterproofing liquid components contained in each of the two waterproofing liquid storage containers can be easily adjusted to a preset ratio as necessary.

As described above, in the present invention, by discharging the waterproofing liquid components at different ratios from the waterproofing liquid storage containers accommodating the two waterproofing liquid components, even in the case of the two-component waterproofing liquid having different mixing ratios, Since the compounding rate can be easily adjusted, the injection pump according to the present invention has various compounding ratios, compared with the conventional injection pump, in which only the same amount is discharged and mixed in the storage containers accommodating the two-component waterproof liquid composition components. Ease of use in two-component water-proof liquids greatly reduces the user's equipment purchase burden and improves the efficiency and convenience of injection pumps.

The injection pump of the present invention can be used to inject one-component or two-component waterproofing liquid for crack repair, and injects the discharge amount of the waterproofing liquid components of the two-component waterproofing liquid at a predetermined ratio, and is universally applied to the two-component waterproofing liquid of various compounding ratios. Can be used.

110: drive unit 111: drive gear
120: main gear 121: connection
122, 122 ', 122 ": Pin 130: Injector
131 cylinder 132 piston

Claims (4)

Two connecting rods 125 coupled to the driving gear rotated by the motor of the driving unit, the connecting rods 125 coupled to the connecting pieces 121 eccentrically mounted by pins 122, 122 'and 122 "on the upper surfaces of the respective main gears. In the housing, two injectors 130 connected to the connecting rods and injecting and discharging the waterproofing liquid from the waterproofing tank are injected by the piston 132 reciprocating in the cylinder 131 equipped with the waterproofing tank. In the injection pump for waterproofing liquid supply,
The driving unit 110 is provided and arranged to drive the two main gears 120 individually so that the two injectors 130 individually discharge the waterproofing components at a predetermined discharge rate at an increased discharge pressure. The pistons of the corresponding injectors are reciprocated by the rotation of the respective main gears 120 which rotate in engagement with the driving gears 111 provided in the respective driving units to individually inflow and discharge the waterproofing components from the waterproofing tank. There is,
Holes are formed at a plurality of radially spaced positions on the upper surface of the main gear 120, and the pins 122, 122 ′, 122 ″ of the connecting piece 121 are mounted in the holes selected from the holes. Injection pump for waterproofing liquid supply, characterized in that to adjust the mixing ratio of the waterproofing liquid components supplied by the injectors by adjusting the amount discharged by changing the piston stroke distance in the cylinder of the corresponding injectors in conjunction with the main gear 120 .
delete The method of claim 1,
The driving unit 110 drives two main drill gears respectively for driving the two main gears 120 so that the two injectors 130 individually discharge the waterproofing components at a predetermined discharge rate at an increased discharge pressure. Made up of
Reciprocating the piston 132 of the corresponding injector 130 by the rotation of each of the main gear 120, which rotates in engagement with the drive gear 111 provided on the output shaft of the two power drill constituting the drive unit 110. It is to move in and out of the waterproofing liquid component from the waterproofing liquid tank separately, the end 112 of the output shaft protruding downward from the drive gears 111 of the two power drill constituting the drive unit 110 is the bottom of the housing Injection pump for waterproofing liquid, characterized in that the rotatably supported in the bearing 113 provided in the.
The method of claim 3, wherein
When injecting the one-component waterproofing liquid, only one of the two power drills constituting the driving unit 110 is driven, and one main gear 120 engaged with the driving gear 111 provided on the output shaft is rotated to the main gear. An injection pump for waterproofing liquid supply, characterized in that for discharging the one-component waterproofing liquid contained in the waterproofing tank mounted on the cylinder of the corresponding injector.

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