JPH08145283A - Quantitative discharge pump having display of discharge - Google Patents

Abstract

PURPOSE: To accurately measure a dischage amount by the provision of a display displaying the volume of resin to be discharged by operation of a pump. CONSTITUTION: A piston 3 to be energized to one direction by a resilient member is set in a cylindrical body and a pump cylinder 1 equipped with a nozzle 10 for dischaging is provided with a micrometer 20 which has a function to measure the movement of wire 21 connected to the piston 3, and the movement of the piston is displayed in the form of dischage amount of substance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant quantity discharge pump having a display device for displaying the discharge amount of liquid resin or grease.

[0002]

2. Description of the Related Art As a method for repairing cracks in concrete and floating mortar, there is known a repairing method of injecting an epoxy resin into a defective portion.

When the epoxy resin is injected into the cracked portion of the concrete, the repair work can be carried out while visually checking the injection amount, so it is rare that the required amount of resin is mistaken, but when the epoxy resin is injected into the floating portion of the mortar. Since the amount is invisible, the resin required for repair is not often injected.

In the work of repairing the floating of the mortar, an injection hole is opened from the mortar portion toward the concrete skeleton, an epoxy resin is injected into this hole, and the resin is supplied to the gap between the mortar and the skeleton. Generally, the clearance between the mortar and the body is about 0.3-0.5 mm,
Further, it is said that a standard construction method is to inject 30 cc of resin into one place from the injection hole for repair work.

The epoxy resin thus injected spreads in the gap between the mortar and the body to a diameter of about 300 mm. For this reason, repair work is generally performed by forming injection holes at intervals of 300 mm.

[0006] By the way, for the injection of the epoxy resin, a metering pump called "a grease pump" is usually used. In this pump, the amount of resin discharged from the nozzle is determined by the pump operation (lever operation). For example, if the pump discharges 1.5 cc at a time, 30 cc will be injected into one hole. Measures the required amount by performing 20 pump operations and manages the injection amount by the number of pump operations.

However, the number of pump operations cannot be accurately counted during the repair work, and it is the current situation that a desired amount of resin to be injected into one place cannot be quantified.

[0008]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a constant-quantity discharge pump capable of measuring an accurate discharge amount by providing a display device for displaying the volume of resin discharged by pump operation. It is an object.

[0009]

Means for Solving the Problems In the present invention, a means for solving the problems is to provide a piston urged in one direction by an elastic member in a cylindrical body, and to provide a nozzle for discharging contents pushed out by the piston. The pump cylinder is provided with a micrometer, and the micrometer has a function of measuring the movement amount of the wire. The wire is connected to the piston to convert the movement amount of the piston into the discharge amount of the contents. It is characterized by displaying as.

[0010]

1 is a perspective view showing a metering pump of the present invention, FIG. 2 is a partially cutaway side view showing a first embodiment, and FIG.
[FIG. 7] is a sectional view showing a second embodiment.

In the figure, reference numeral 1 denotes a pump cylinder which serves as a resin tank. The pump cylinder 1 has a stem tube 2 continuously formed at its base end and having a diameter smaller than that of the cylinder.
The piston 3 is slidably accommodated inside. The piston rod 4 provided on the piston 3 is inserted into the handle tube 2 and the handle 5 provided at the tip of the rod has a handle tube 2.
The guide groove 6 is formed so as to be parallel to the axial direction. An engaging groove 7 is formed in the guide groove 6 near the tip of the handle tube 2 in a direction orthogonal to the axial direction.

At the base end of the pump cylinder 1, a coil spring 8 is mounted between the mounting portion of the handle tube 2 and the back surface of the piston 3, and the piston 3 is an opening which becomes the tip of the pump cylinder. It is biased in the direction of being pushed out toward the section.

Further, at the tip of the above-mentioned pump cylinder 1,
The pump chamber 9 is detachably screwed, and a nozzle 10 is provided at the tip of the pump chamber 9. Further, a lever 11 is attached to the pump chamber 9 by a fulcrum pin 12, and a plunger 13 having a tip end inserted into the pump chamber 9 is attached by a pin 14 adjacent to the fulcrum pin 12. There is.

To use the pump, the pump chamber 9 is removed from the pump cylinder 1, and then the handle 5 is pulled along the guide groove 6 toward the tip of the handle tube 2 against the elastic force of the coil spring 8. Are engaged with the engaging groove 7. Since the piston 3 is located at the base end (bottom) of the pump cylinder 1 at this position, epoxy resin is filled from the cylinder opening and the pump chamber 9 is connected to the pump cylinder 1 again. Here, when the handle 5 is disengaged from the engagement groove 7, the coil spring 8 presses the piston 3 toward the tip portion (nozzle 10), and the epoxy resin (not shown) can be discharged from the nozzle 10.

When the nozzle 10 is inserted into the hole formed in the mortar and the lever 11 is operated, the resin filled in the pump cylinder is discharged from the nozzle 10 in a fixed amount.

According to the present invention, a micrometer capable of measuring even a slight amount of movement is attached to the pump cylinder, the micrometer and the piston 3 are connected by a wire, and the resin discharged from the length of movement of the piston 3 The amount is converted to volume and displayed digitally.

FIG. 2 shows a first embodiment, in which a display device 20 is provided outside the base end of the pump cylinder 1 and the display device 20 and the handle 5 are connected by a wire 21. The wire 21 is connected to the display device 20 by passing through the handle tube 2 and the pump cylinder 1, and the direction of the wire 21 is changed via a pulley 22 provided on the way.

The display device 20 has a wound wire and has a function of accurately measuring the movement amount of the wire 21, and therefore the piston 3 is pushed out by the movement amount of the wire 21. The amount of resin is displayed digitally. A micrometer that measures the amount of movement of the wire and digitally displays the length is known.

FIG. 3 shows a second embodiment. A wire 31 fixed to the piston 3 is connected to a display device 30 provided on the pump cylinder 1. The wire 31 is connected to the display device 30 in the pump cylinder 1 via a pulley 32. Then, in the second embodiment, as in the first embodiment, the moving amount of the wire 31 is converted into the amount by which the piston 3 pushes out the resin and is digitally displayed.

Since the embodiment has the above-mentioned construction, when the lever is operated to discharge the resin in the pump, the resin is not actually injected even if the lever is operated, or the number of times the lever is operated is incorrect. Even if there is, an accurate discharge amount can be measured.

[0021]

Since the present invention has the display device for converting the amount of movement of the piston into the discharge amount of the content and displaying the discharge amount, the discharge amount can be accurately known without counting the pump operation. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a metering pump.

FIG. 2 is a partially cutaway side view showing the first embodiment.

FIG. 3 is a sectional view showing a second embodiment.

[Explanation of symbols]

 1 Pump Cylindrical Body 2 Handle Tube 3 Piston 4 Piston Rod 5 Handle 6 Guide Groove 7 Engagement Groove 8 Coil Spring 9 Pump Chamber 10 Nozzle 11 Lever 12 Support Point Pin 13 Plunger 14 Pin 20 Display Device 21 Wire 22 Pulley 30 Display Device 31 Wire 32 pulley

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tsuyoshi Otsuka 3-7-5 Numabukuro, Nakano-ku, Tokyo

Claims (1)

[Claims] 1. A pump having a piston urged in one direction by an elastic member in a cylinder and a nozzle for discharging the content pushed out by the piston, wherein the pump cylinder has a micrometer. The micrometer has a function of measuring a movement amount of a wire, and the wire is connected to the piston to display the movement amount of the piston by converting the movement amount of the piston into a discharge amount of the content. A metering pump having a volume display.