WO2016008363A1

WO2016008363A1 - Dropper distributor of telescopic liquid suction tube

Info

Publication number: WO2016008363A1
Application number: PCT/CN2015/082926
Authority: WO
Inventors: 戴暘; 李勇军
Original assignee: 御田二工业（深圳）有限公司
Priority date: 2014-07-15
Filing date: 2015-06-30
Publication date: 2016-01-21
Also published as: CN104071436A; CN104071436B; EP2995570A1; EP2995570B1; EP2995570A4

Abstract

Disclosed is a dropper distributor of a telescopic liquid suction tube, comprising an accommodating cylinder (10) inserted in a bottle mouth, wherein a big piston (5), a spring (6), a small piston (9) and a liquid suction tube (8) are arranged in the accommodating cylinder in sequence from top to bottom, a fixed lock (3) is arranged at the top of the accommodating cylinder, the big piston is slidably connected in the accommodating cylinder, and the big piston is provided with an inner cavity with a downward opening; the upper part of the small piston is inserted in the inner cavity of the big piston, so that the two form a sliding connection; the spring is sandwiched and pressed between the small piston and the big piston; the top of the liquid suction tube is slidably connected to the lower part of the accommodating cylinder; the lower end of the small piston is crimped on the liquid suction tube, and a liquid suction mouth of the liquid suction tube is in contact with the bottom of a bottle (11); and a nut (2) is crimped on the big piston, the nut is in threaded connection with the neck of the bottle, a sleeve (4) is arranged on the nut, the sleeve is fixed to the accommodating cylinder, and the nut is statically connected to the sleeve in the circumferential direction and slidably connected to the sleeve in the axial direction. The dropper distributor of a telescopic liquid suction tube can guarantee that the liquid suction tube is not bent, and can make the liquid suction mouth thereof stay at the bottommost part of a container.

Description

Dropper dispenser for retractable pipette

Technical field

The present invention relates to a solution dispensing device, and more particularly to a dropper dispenser for a retractable pipette.

Background technique

At present, the dropper dispensers on the market for sale on the container have caused the pipette to be too long or the container height to be insufficient due to dimensional tolerances in the production of the parts, causing the pipette to bend or break. In actual production, in order to avoid the above situation, the producer needs to deliberately design the pipette on the bottom of the container so that there is a certain distance between the pipette and the bottom of the container. This design intentionally shortens the pipette. Inevitably, the pipette cannot be in contact with a portion of the bottommost liquid, and the untouched valuable contents cannot be sucked out. In summary, the pipette cannot contact the bottom of the bottle and cannot absorb the contents of the bottom of the bottle, causing waste; excessive contact may break the pipette or cause the pipette to bend inside the bottle.

Summary of the invention

The present invention provides a dropper dispenser for a retractable pipette in order to solve the technical problems in the prior art. When the dispenser is sealed and mounted on the container, the pipette can be ensured without breaking and bending, and can be maintained. The liquid suction nozzle of the pipette stays at the bottom of the container, so that it can absorb every drop of valuable content at the bottom of the container.

The technical solution adopted by the present invention to solve the technical problems existing in the prior art is: a dropper dispenser of a retractable pipette, comprising a tank inserted in the mouth of the bottle, from the top to the inside of the tank a large piston, a spring, a small piston and a pipette are arranged in sequence, and a fixed lock is arranged at the top of the tank, the large piston is slidably connected in the tank, and the large piston is provided with an opening facing downward The inner cavity; the upper portion of the small piston is inserted into the inner cavity of the large piston, the two form a sliding connection; a spring is sandwiched between the small piston and the large piston; the pipette a top portion is slidably coupled to a lower portion of the containment cylinder; a lower end of the small piston is crimped onto the pipette, a liquid suction nozzle of the pipette is in contact with a bottom of the bottle; and a pressure is applied to the large piston a nut is coupled to the neck of the bottle, and a nut is disposed on the nut, the outer sleeve is fixed on the cavity, and the nut is axially slidably connected in a circumferential direction. On the jacket.

The nut is provided with a shoulder, a plurality of through holes are formed on the shoulder of the nut, and a plurality of extending legs adapted to the through holes are disposed in the outer sleeve, and the extending legs are worn The through hole is inserted into the nut, and the extending leg is fastened to the receiving cylinder, and an outer circular surface of the nut is slidably connected to an inner circular surface of the outer casing.

The small piston is provided with an inner cavity with an opening facing upward, the spring being wrapped in the inner cavity of the small piston and the inner cavity of the large piston.

The containment cylinder is sealed in the mouth of the bottle.

A gasket is sandwiched between the tank and the top surface of the bottle.

A button is fastened to the nut.

The invention has the advantages and positive effects that: by adopting a structure in which a large piston, a spring and a small piston arranged in order from the top to the bottom cooperate with the pipette, the pipette can be slightly retracted upward after the bottom is bottomed down. The cylinder is pushed to push the small piston upward to release the downward pressure, so that the liquid suction nozzle of the liquid suction pipe stays at the bottom of the container and does not move, sucking every drop of valuable content at the bottom of the container to avoid waste and avoiding The pipette is bent or broken due to dimensional tolerances of the part. The invention is suitable for use as a suction device for sucking out the liquid in the bottle, and is particularly suitable for the cosmetics industry, and can protect the liquid in the bottle from leaking and drying when stored, transported and inverted.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

In the figure: 1, button; 2, nut; 3, fixed lock; 4, jacket; 5, large piston; 6, spring; 7, gasket; 8, pipette; 9, small piston; ; 11, bottle.

detailed description

In order to further understand the contents, features and effects of the present invention, the following embodiments are exemplified and described in detail with reference to the accompanying drawings:

Referring to FIG. 1 , a dropper dispenser of a retractable pipette includes a tank 10 inserted in a bottle mouth, and a large piston 5 and a spring 6 are arranged in the tank 10 from top to bottom. a small piston 9 and a pipette 8 are provided at the top of the tank 10 with a fixed lock 3, the large piston 5 is slidably connected in the tank 10, and the large piston 5 is provided with an opening facing downward a cavity; an upper portion of the small piston 9 is inserted into the inner cavity of the large piston 5, and the two form a sliding connection; a spring 6 is sandwiched between the small piston 9 and the large piston 5; The top of the pipette 8 is slidably coupled to the lower portion of the magazine 10; the lower end of the small piston 9 is crimped onto the pipette 8, the suction nozzle of the pipette 8 and the bottom of the bottle 11 a nut 2 is crimped onto the large piston 5, the nut 5 is screwed to the neck of the bottle 11, and the nut 2 is provided with a jacket 4, and the jacket 4 is fixed to the On the cylinder 10, the nut 2 is circumferentially slidably coupled to the outer casing 4 in a stationary axial direction.

In the embodiment, the specific linking structure of the nut 2 and the outer sleeve 4 is: the nut 2 is provided with a shoulder, and a plurality of through holes are provided on the shoulder of the nut 2, The outer sleeve 4 is provided with a plurality of extending legs adapted to the through holes, the extending legs pass through the through holes and are inserted into the nut 2, and the extending legs are fastened in the On the cylinder 10, the outer circular surface of the nut 2 is slidably coupled to the inner circular surface of the outer casing 4. The small piston 9 is provided with an opening facing upward The cavity is wrapped in the inner cavity of the small piston 9 and the inner cavity of the large piston 5. The cartridge 10 is sealingly inserted into the mouth of the bottle. A spacer 7 is interposed between the magazine 10 and the top surface of the bottle 11. A button 1 is fastened to the nut 2 .

When in use, the manufacturer needs to fill the liquid in the bottle 11. When the filling is completed, the above-mentioned dropper dispenser needs to be screwed onto the bottle neck. When the user unscrews the dispenser, the solution in the bottle can be sucked out, and the sucked contents are stored in the pipette, the pipette dispenser is taken out, and the mouth of the pipette is placed on the palm or the desired part. Press the dispenser button or nut to drain the liquid in the pipette. After draining the liquid in the pipette, screw the dispenser onto the bottleneck and prepare for the next use. By repeatedly unscrewing, removing, pressing and tightening the dispenser, the contents of the bottle can be completely sucked out, and the last drop of the contents attached to the bottom of the bottle can be sucked out.

The structure and function of each component will be described in detail below with reference to the accompanying drawings:

Button 1: This part is a decorative part that can be made of any material such as plastic, metal, wood, glass, etc., and can also produce a variety of shapes. The button is fixed on the top of the nut. When the dispenser is used, the user needs to unscrew the dispenser. Under the action of the spring, the button will rise upwards. Pressing the button can apply pressure to the nut underneath, and the nut can be driven. The large piston moves downward, compressing the space inside the pipette, and discharging the contents of the pipette. The invention can also directly press the nut when in use without a button.

Nut 2: This part is mainly made of plastic and is an important feature. The top of the nut can be connected with a button or without a button. A through hole is formed in the shoulder of the nut, and the extending leg in the outer sleeve 4 is inserted into the nut through the through hole of the shoulder of the nut, and is fastened to the cylinder, and the purpose of the through hole is to fix the nut to the outer circumference of the outer sleeve. Upper, the relative rotation is not allowed, and the nut is slidably coupled to the outer casing in the axial direction, so that the nut can slide up and down in the outer casing. An internal thread is designed on the inner side of the nut, and the internal thread is matched with the external thread of the bottle neck to achieve a tight seal and a detachable effect. The outer diameter of the nut needs to match the inner diameter of the outer casing. Since the nut must slide up and down in the outer casing, the outer diameter of the nut should be strictly controlled.

Fixed Lock 3: This part is made of plastic and is mounted on the top of the tank to limit the size of the piston, pipette and spring to the tank. It is a fixed function that is necessary for this dispenser.

Jacket 4: This part can be produced from different materials such as plastic, metal and wood. It has two main functions. First, as a decorative part, it is located at the outermost part of the dispenser and is the main part of the hand contact, so with different decorative designs and shapes, different aesthetic effects can be formed. Another function is that the inner circular surface is the sliding fit of the nut, and the outer sleeve is inserted into the nut and the cylinder is fastened by the inner extending leg. When the dispenser is unscrewed and tightened, the nut slides up and down inside the outer casing to make the action of amplifying and collecting the volume of the small cylinder.

Large piston 5: This part is made of plastic and is an important functional part. The function of the dispenser to suck the liquid is realized by the large piston moving up and down in the tank. The large piston is provided with a spring. Each time the screw is pressed or pressed, the large piston moves downward in the cylinder, thereby reducing the volume of the cylinder to realize the function of discharging air or contents. Unscrewing the nut or releasing the push button will cause the large piston to move upwards, thereby increasing the capacity of the cylinder and achieving the function of sucking in contents. The large piston is pressed under the nut, and pressing the button moves the large piston downward through the nut. The top of the large piston is designed with through holes to maintain the air pressure balance inside and outside the large piston.

Spring 6: The material can be made of stainless steel. Its function is to provide power. Press the button or tighten the nut, and the spring is pressed and contracted. Release the button or unscrew the nut. Under the action of the spring restoring force, the large piston moves up. The small piston moves down, thereby increasing the volume of the cylinder and sucking in the contents. The spring is pinched between the large piston and the small piston and is the main component that provides power.

Gasket 7: This part is made of plastic and is a part used to seal the leak of the bottle mouth.

Pipette 8: This part can be made of plastic or glass. The main function is to store the liquid contents taken by the dispenser and is the most important brake function. Because the present invention is such that when the member is in contact with the bottom of the bottle, the liquid suction nozzle is stopped at the bottom of the container, and does not leave, nor can it be excessively contacted. Therefore, it is necessary to make the component retreat a short distance when it contacts the bottom of the bottle, and push the small piston upward compression spring to release the downward pressure.

Small piston 9: This part is made of plastic and placed inside a large piston. This part provides two functions. First, the small piston wraps the metal spring to keep the spring out of contact with the contents. Second, the small piston moves in the opposite direction to the large piston, and the contact with the pipette provides the most important function of the dispenser, which is the action of the pipette returning. The reason why the invention can absorb the contents of the bottom of the bottle is because the liquid suction pipe can contact the bottom of the bottle without bending and breaking, so the liquid suction pipe has the function of being able to retract, when the liquid suction pipe contacts the bottom of the bottle After the retraction, there must be a returning transmission member of the pipette, and the power of the returning position is transmitted to the spring through the small piston.

Capacitor 10: This part is made of plastic and is the main component of the present invention. All the functional parts are installed in the tank first, locked with a fixed lock, and then formed with a nut and a jacket. The gasket is placed under the tank to form an important structural component for sealing the product. The volume cylinder is also a component that determines the amount of pressure to be pressed. The volume of the large piston and the volume of the cylinder is constructed as the discharge amount per pressing, which is the basic function of the dropper. The cylinder is also a component that is engaged with the jacket. The cylinder of the cylinder is fastened to the structure, so that when the invention is screwed to the bottle neck, the button will descend on its own to reach the air first, and when the nut is unscrewed, the dispenser will Automatically inhale contents. The structure in which the cylinder seal is inserted into the bottle neck is another characteristic structure. The gasket of the tank is the first seal leakage prevention design, and the cylinder seal is inserted into the bottle mouth to form a second intervening leakproof, so that the invention has more Strong leak-proof ability.

Bottle 11: Store contents. It is an attachment of the present invention.

Although the preferred embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive. It is to be understood that the invention may be embodied in many forms without departing from the spirit and scope of the invention.

Claims

A dropper dispenser for a retractable pipette, characterized in that it comprises a tank inserted in a bottle mouth, and a large piston, a spring, a small piston and a liquid absorption are arranged in the tank from top to bottom. a tube having a fixed lock at the top of the tank, the large piston being slidably connected in the tank, the large piston being provided with an opening facing downward; the upper portion of the small piston being inserted in the chamber In the inner cavity of the large piston, the two form a sliding connection; a spring is sandwiched between the small piston and the large piston; a top of the pipette is slidably connected with a lower portion of the tank; a lower end of the small piston is crimped onto the pipette, a liquid suction nozzle of the pipette is in contact with a bottom of the bottle; a nut is crimped onto the large piston, the nut and the neck of the bottle A threaded connection is provided with a jacket on the nut, the outer sleeve being fixed to the receiving cylinder, the nut being circumferentially stationary axially slidably coupled to the outer casing.
A dropper dispenser for a retractable pipette according to claim 1, wherein said nut is provided with a shoulder, and a plurality of through holes are provided in a shoulder of said nut, An extension leg adapted to the through hole is disposed in the outer sleeve, the extension leg passes through the through hole and is inserted into the nut, and the extension leg is fastened on the cavity The outer circular surface of the nut is slidably coupled to the inner circular surface of the outer casing.
A dropper dispenser for a retractable pipette according to claim 1 wherein said small piston is provided with an opening facing upwardly, said spring encasing said inner cavity of said small piston and said In the inner cavity of the large piston.
A dropper dispenser for a retractable pipette according to claim 1 wherein said containment seal is inserted into said mouth.
A dropper dispenser for a retractable pipette according to claim 1 wherein a gasket is interposed between said cuvette and the top surface of the bottle.
A dropper dispenser for a retractable pipette according to claim 1 wherein a button is snapped onto said nut.