A viscous material injection device

Abstract

The invention discloses a viscous material injection device. The device comprises a shell, a material bag, an ejection bowl, a spinning and extruding assembly and a handle driving assembly, wherein the shell consists of a cylinder, an end cap and a handle; the material bag takes the shape of a pipe barrel, and is put in the cylinder; a discharge nozzle is formed in the front end of the material bag; the bag wall at the back end of the material bag is gathered to be tightened by a hoop; a clamping piece is arranged at the back side of the hoop; the ejection bowl is buckled at the back side of the material bag; a center hole is formed in the bottom of the ejection bowl; the spinning and extruding assembly comprises a bushing and a telescopic shaft rod; a fixed clamp is arranged at the front end of the telescopic shaft rod; and the handle driving assembly consists of a handle, a shaft sleeve, a gear and a one-way transmission mechanism, and is used for driving the spinning and extruding assembly to rotate in one direction. The viscous material injection device is conveniently operated, is suitable for bulk materials to save the production cost, prevents direct contact between the materials and the cylinder to reduce the residue of the materials in the material bag, guarantees the service life thereof, and reduces the resource waste. In addition, the viscous material injection device is conveniently held, is small and compact in structure, can be used for injecting various colloids in such industries as industry, architectural engineering and decoration, and can be used for injecting various liquid diets in clinical care.

Description

technical field [0001] The invention relates to a hand tool, in particular to a push injection device suitable for viscous materials such as sealant, grease and liquid food. Background technique [0002] The injection device for viscous liquid materials is a commonly used device in the fields of industrial production, construction engineering, clinical medicine, etc., for example, it is used to inject sealant, glass glue, etc. A colloidal glue gun is used in clinical medicine to inject liquid food boosters into the stomach of patients through nasal feeding tubes, etc. [0003] Currently commonly used glue guns are generally composed of a bracket, a handle, an ejector rod and a trigger. The tubular colloid is placed on the bracket, and the trigger can be driven to move the ejector rod forward, driving the colloid in the tubular package from It flows out from the tapered mouth at the front end for the purpose of colloid injection. This type of glue gun can only be used for c...

AI Technical Summary

Problems solved by technology

This type of glue gun can only be used for colloids in cylindrical hard packaging. This type of colloid is sold after professional packaging by the manufacturer, and the operator cannot fill it by himself. However, this kind of packaging tube is used for one-time use, resulting in a certain amount of material waste. , while increasing the cost of rubber products

In addition, there are also glue guns suitable for bulk colloids. This type of glue gun is usually equipped with a cylinder for storing glue, a piston is arranged in the cylinder, and a glue injection nozzle is provided at the front end of the cylinder. This glue gun injects glue The cylinder can be used continuously for many times, but when the interval is long, the residual colloid on the inner wall of the cylinder will solidify and the cylinder cannot be used continuously, which is not conducive to reducing the cost of use

[0004] Clinically, for patients who are in a coma or cannot eat normally, nasal feeding is usually used to supplement the necessary energy for the patient. At present, a large syringe is usually used to inject liquid food, but the volume of the syringe is still small, and often needs to be performed several times. Extraction and injection are cumbersome to operate, and it is inconvenient to hold and laborious to operate

The patent of publication number CN201120259010 discloses a new type of liquid food booster, which includes a liquid food storage cylinder, a hydraulic device and a hydraulic piston, and the hydraulic device is used to drive the piston to move in the storage cylinder to realize bolus injection of liquid food; the patent disclosure of publication number CN201310280498 An electric liquid food booster is disclosed, which includes a food storage cylinder, a piston is arranged in the food storage cylinder, a gear push rod and a motor are arranged on the rear side of the piston, and the motor drives the piston to move through the gear and the gear push rod to realize liquid food push The purpose of note: the above two liquid food bolus injection devices have a greater improvement in operation than the use of syringes for liquid food bolus injection, but both have certain deficiencies, that is, the liquid food is directly placed in the food storage cylinder, and the food storage cylinder It is relatively closed, so it is not easy to clean and clean after use, and it is easy to leave food residues. On the one hand, it is unhygienic and easy to breed bacteria. On the other hand, the residual liquid food condenses on the inner wall, affecting the movement of the piston. normal work

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