JPS6060290A - Liquid distributing device - Google Patents

Abstract

PURPOSE:To secure a predetermined amount of delivery by a method wherein a push roller is abutted against an inner ring and a housing to prevent the push roller from being deformed by a pressure applied on a tube and preclude vibration of a rotary body including the push roller. CONSTITUTION:A roller pump is constituted so that a multitude of push rollers 7 are retained rotatably by a retainer 6, the push rollers 7 are pivoted under being abutted against both of the inner ring 8 and the housing 1, the retainer 6 itself is not contacted with either one of the inner ring 8 or housing 1 and the retainer 6 is allowed to be rotated freely. According to this method, the push roller 7 is prevented from being deformed by a pressure applied on the tube 3 and the rotary body, including the push rollers 7, is prevented from vibration, whereby the predetermined amount of delivery may be secured. Further, the push rollers 7 can be moved on the surface of the tube 3 in accordance with the amount of rotation, therefore, the sliding friction of the push rollers on the surface of the tube 3 may be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus that is capable of dispensing liquid as a drip by quantitatively suctioning and discharging a liquid in a liquid reservoir to the outside through a cheap pipe mainly by manual operation, and is particularly easy to carry. is possible,
The present invention relates to a device that can manually dispense a small amount of droplets to a predetermined area accurately.

For liquids such as adhesives, medical drugs, chemicals, and beverages, many devices and devices have been proposed for dripping a predetermined amount of relatively low-viscosity liquid onto a predetermined part of an object. .

Functionally, these proposals can be divided into those with complex mechanisms and those with extremely simple structures. Generally speaking, the former can dispense and dispense an accurate amount of droplets, but are expensive. Due to the complexity of the mechanism, it was difficult to handle, frequently broke down (and was also inconvenient to transport).

On the other hand, although the latter method is convenient to carry, it is not possible to continuously obtain an accurate amount of droplets, and it is not suitable for applying to a large number of objects and processing them in a short period of time.

The present invention corrects the drawbacks of the conventional devices described above, and relates to a liquid dispensing device that is portable, easy to handle, and can be applied to objects continuously and accurately down to minute droplets. However, it consists of a liquid reservoir that holds the liquid to be distributed, a cheep whose one end serves as a liquid suction port and the other end serves as a discharge port, and a roller pump to transfer the liquid through the chevron. The pump includes a rotating body that includes a large number of suppressing rollers, a retainer 1 that arranges and holds these in a cylindrical shape so as to be rotatable, an inner ring that can rotate inscribed in each suppressing roller, and a rotating body that surrounds the rotating body. The tube is comprised of a housing that contacts and supports the suppression roller in part, and a tube support that presses and clamps the tube between the suppression roller and a rotating means that rotates the rotating body in a predetermined direction. - The suction port of the pump is located inside the liquid reservoir, and a part of the outlet portion led out to the outside of the liquid reservoir is compressed and sandwiched between the pressure roller and the cheap receiver, and the liquid pool is held by the rotation of the rotating body. This liquid distribution device is capable of quantitatively suctioning and conveying internal liquid toward a tube discharge port, and will be described in detail below with reference to the drawings.

The drawings relate to an example of the device of the present invention, and FIG. 1 is an overall perspective view with a part seen through and a part cut away, FIG. 2 is an exploded perspective view of each part of FIG. 1, and FIG. FIG. 2 is a partial vertical cross-sectional view of the roller pump section taken vertically and the liquid reservoir cover vertically cut to expose the internal liquid reservoir for explaining the operation of the present invention.

4 is an exploded perspective view of the roller pump, and FIG. 5 is an enlarged sectional view of the roller pump taken along line AA' in FIG. 6. FIG. 6 is a longitudinal sectional view of the tube insertion portion in the liquid reservoir, in which a) shows the state when the tube is attached, and FIG. 6(b) shows the state when the tube is attached.

In these, 1 is a roller pump used in the device of the present invention, 2 is a liquid reservoir consisting of a storage container for the liquid to be distributed and conveyed, and 3 is a liquid in this liquid reservoir that is sucked by the roller pump 1 through a suction port 19 at one end. , and the other end is a tube for distributing and conveying from the outlet 1'' 20, and this tube is flexible and has an appropriate resilience against the pressing force applied to the outer wall. Reference numeral 4 denotes a liquid reservoir cover that houses the liquid reservoir 2 therein and also serves as a gripping portion.

The roller pump 1 has the structure and function described below.

That is, basically, a fixed part including a housing etc.
It consists of a pump rotation section including a suppression roller and an operation section including a manual lever for manually rotating the pump rotation section.

Of these, the pump rotating portion includes a retainer 6 which holds a large number of rotatable suppression rollers 7 in a cylindrical shape, and a retainer 6 which is inscribed in each of the suppression rollers 7, as is particularly clear in FIGS. 4 and 5. The inner ring 8, which can be rotated by the rotation of the pressing roller, constitutes a rotating body 6 (shown with the same drawing number as the retainer 6 for convenience). For convenience, the roller pump 1 is shown with the same drawing number as the roller pump 1). With respect to the retainer 6, the inner ring 8 and the wall 11,11' of the housing 1
It has a structure that allows it to rotate freely without touching any of the parts. A portion of the through hole is cut into the housing 1 so that it runs along the suppression roller of the rotating body B, and has a slight opening that allows the Q-Pro to be forcefully clamped between it and the suppression roller by tightening the holding screw 12. Detachable chips arranged at intervals1. - A bracket 5 is provided.

Further, as shown in FIG. 3, a lever 13 with a feed pawl 14 attached thereto for rotating the rotating body 6 is pivotally attached to the housing 1, and this lever 13 is normally protruded outward by a spring 15. However, by grasping the liquid reservoir cover 4 which also serves as a gripping part, and pulling the lever 1 with your fingers, the feed claw 14 is moved to the pressure roller 7.
The feed pawl 14, which rotates in contact with the next pressure roller and is always directed upward and biased in the opposite direction, comes into contact with the next pressure roller 1. ,gK
The rotating body 6 with the rotating plate 9 can be rotated by manually operating the lever.

One such manual operation of the lever 16 causes the rotating body 6 to
In this case, if continuous rotation is desired instead of intermittent movement by lever operation, the roller pump installed on the rotary plate 9 has the above-described structure, but on the other hand, 16. 16' is a cheep holding rod which rests in the longitudinal direction on the upper surface and has a groove formed therein.
6' rotates in the vertical direction and bends in the middle, and the bending angle has a width of about 180 degrees. It can be positioned freely up to the top.

Reference numeral 17 denotes a holder 18 for holding on a cheap holding rod 16', which is a tube-shaped tube guide, through which the tube passes and has its tip slightly protruding to form a liquid discharge port 20.

The liquid reservoir 2 is as shown in Fig. 6(a) (a tube-like tube insertion portion 2 with a closed tip is tightly fitted into the main body containing the liquid and cannot be removed). In this case, the closed end portion is opened by cutting through the cutting groove 21, and the tube 6 is inserted through it for use. It has a shape that can be crowned at the tip, and there is no leakage of the liquid between the internal insertion tube and the tube.
Moreover, it is covered with a cap 26 having a built-in porous stopper 22 that allows sufficient air to flow in to prevent the negative pressure inside the liquid reservoir caused by carrying out the liquid.

Now, in the device having the above structure, one end of the tip is inserted into the inside of the liquid reservoir 2, and at least the tip is immersed in the liquid to create a suction I]19, and the outside of the liquid reservoir is Place the middle of the cheese led out along the pressure roller 7 of the roller pump 1, tighten the cheek receiver 5, and connect it with the pressure roller. --Puuke holds Cheap in between. Next, the cheep is passed through the tube guide 18 through the groove of the nozzle holding rod 16, 16', and the discharge port 20 is made to protrude.

Then, by grasping the liquid reservoir cover 4 and operating the lever 1 with your fingers, the rotating body 6 of the roller pump rotates, and the pressing roller 7 rotates against the outer wall of the tube held between the tube receiver 5. By pressing N, the liquid inside can be sucked upward and dripped from the discharge port 20. In this case, if the cheep is filled with liquid from the suction l to the discharge port, it is easy to dispense with a few lever operations, but this is the first time use If the discharge port is not filled with liquid, it is necessary to repeatedly operate the lever approximately every minute in order to fill the discharge port with liquid. In such a case, if the nondle pin 10 provided on the rotating plate 9 is held and the rotating body B is continuously rotated, the cheep can be filled with liquid in a short time of ~ seconds.

Therefore, as shown in FIG. 5, the roller pump according to the present invention has a plurality of suppressing rollers 7 rotatably handled by a retainer 6, and these suppressing rollers contact both the inner ring 8 and the housing 10 and rotate at the same time. However, the retainer 6 itself is
It has a structure that allows it to rotate freely without contacting any of these.

By bringing the suppression roller into contact with both the inner ring and the housing in this way, the suppression roller is prevented from deforming due to the pressure applied to the tube, and the swinging of the rotating body including the pressure roller is prevented to maintain the predetermined feed hl. can be ensured.

In addition, since the pressure roller can move on the tube surface in accordance with the amount of rotation thereof, there is no risk of sliding friction of the pressure roller on the tube surface, and this sliding friction can cause tube wear and tube surface damage. There is no problem such as the problem of the cheep being sent in the direction in which the pressing roller follows and eventually breaking the cheep.

(Then, this pressure roller does not slide on the surface of the chevron.) The pressure roller is moved to a closed state, and as this blocked part moves, the suction and discharge of the liquid is completed and accurately. The amount of infusion is extremely accurate because the amount of lever c7 1+ is always determined by one lever operation.

The amount of liquid dripped can be adjusted by both the diameter of the tube) and the stroke of the lever, that is, the rotation angle of the roller pump rotating body in one operation, making it easy to adjust by changing the thickness of the tube. However, it is preferable that the lever stroke be easily changed and adjusted.

In the apparatus of the present invention, there is no particular restriction on the operating mechanism for rotating the roller pump rotating body. As mentioned above, M9'69, in which the force applied to the lever 13 is transmitted to the suppression roller 7 via the feed pawl 14 and rotated, is superior in that it gives quantitative properties to the drip, and does not have such a structure. For example, C may have a structure in which the inner ring 8 itself is rotated as a drive shaft, and in any case, it is sufficient to have a mechanism capable of relocating the suppressing roller.

The structure of the tube insertion part 2' of the liquid reservoir in the device of the present invention is designed to serve the original purpose of supplying the necessary minimum amount of replacement air to prevent the 9 pressure inside the liquid reservoir that is generated as the liquid is carried out. In addition, there is no leakage even if the device is intentionally or carelessly tipped over or tilted, and the liquid can be used continuously by simply replacing the container. (In cases where contact with dust, oxygen, nitrogen, moisture, etc. is to be avoided as much as possible, intentional contamination of foreign matter, poor quality liquid υ)
It is also extremely advantageous in preventing refills, etc. However, if such measures are not required, open structures 3. i! ! (Depending on the liquid content, the liquid reservoir cover that also serves as a handle may be used as a direct reservoir.Alternatively, a long roller pump and a thin strip can be used to draw out the liquid from the reservoir.) The device of the present invention may be constructed in a state separated from the liquid discharge section.

The device of the present invention has the advantage of being able to continuously administer an accurate amount of infusion to a predetermined site by manual operation, and is simple and compact in structure and can function as an independent device, making it portable and portable. This is extremely advantageous in transportation and handling.

Further, in the device of the present invention, the contact portion with the liquid to be delivered and distributed is fLm and Te1. - Since the roller pump part and other attached parts do not come into contact with the liquid, there will be no problems such as contamination with the liquid and a lack of reliable operation.

Of course, materials that are inert to the liquid should be selected and used for the liquid reservoir and the tube, which are the parts that come in contact with liquid, but the tube should be especially resistant to repeated rotations of the roller pump rotating body. It is desirable to use materials that have sufficient resilience and durability.

For example, when an α-cyanoacrylate adhesive is applied to the device of the present invention, polyethylene, polypropylene, etc. may be used as the material for the liquid reservoir, and the above-mentioned materials may be used for the cheap material, but it is preferable to use Teflon from the viewpoint of durability.

The device of the present invention is particularly effective as a device for dispensing small amounts of adhesives, especially adhesives such as the above α-cyanoacrylate adhesives, which exhibit excellent adhesive effects even when applied in small amounts.
In addition, medical solutions for humans, livestock, and poultry (e.g. eye drops,
Intravenous drips for vaccines, etc.), reagent infusions for chemical analysis, infusions in chemical compounding containers, micro-infusions for lubricating precision machinery, and addition of flavorings and seasonings in food and beverage production, etc. in all fields. This invention has great utility as it can be used as a liquid dispensing device.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of the device of the present invention, partially shown through and partially cut away, and Fig. 2 is an exploded perspective view of each part in Fig. 1.a) shows a roller pump and a tube holding rod. (b) shows the liquid reservoir, chicobe, and tube guide.
(C) shows the tube receiver, and (d) shows the liquid reservoir cover. FIG. 6 is a partial vertical cross-sectional view of the roller pump section taken vertically and the liquid reservoir cover vertically cut to expose the internal liquid reservoir for explaining the operation of the device of the present invention. Figure 4 is an exploded perspective view of the roller pump, Figure 5 is Figure 6A.
It is an enlarged cross-sectional view of the roller pump taken from -A'm. Further, FIG. 6 shows a longitudinal cross-sectional view of the tube insertion portion in the liquid reservoir, in which a) shows the state before the cheep is attached, and FIG. 6(b) shows the state after the cheep is attached. 1... Roller pump 2... Liquid reservoir 6... Tube 6... Retainer 7... Suppression roller 13...・Name of lever patent applicant Toagosei Chemical Industry Co., Ltd.

Claims (1)

[Claims] 1. Consists of a liquid reservoir for holding the liquid to be distributed, a tube having one end as a liquid suction port and the other end as a discharge port, and a roller pump for transferring the liquid through the cheep,
The roller pump includes a rotating body consisting of a large number of suppression rollers, a retainer 1 that holds these in a cylindrical shape so as to be freely rotatable, and an inner ring that is inscribed in each suppression roller and can rotate. The housing includes a housing that surrounds and partially supports the suppression roller in contact with the tube support, and a tube support that presses and clamps the tube between the housing and the pressure roller, and includes a rotating means for rotating the rotating body in a predetermined direction. The suction port of the tube is located inside the liquid reservoir, and a part of the lead-out portion led out of the liquid reservoir is compressed and held between the pressure roller and the tube receiver, and is compressed by the rotation of the rotating body. A liquid distribution device capable of quantitatively suctioning and conveying liquid in a liquid reservoir toward a cheap discharge port.