A quantitative filling device

Abstract

The invention provides a quantitative filling device. The quantitative filling device comprises an upper shell body (1). The shell wall of the upper shell body (1) is provided with a feeding hole (1.1). A plunger rod (3.1) driven by a piston rod (3) is connected in the upper shell body (1) in an inserted mode. A sealing sleeve (3.2) is installed on the head of the plunger rod (3.1) and pressed on a convex ring on the inner wall of the upper shell body (1). A dispensing head (2) is installed at one end of the upper shell body (1), and a blocking ring (4) is pressed at the other end of the upper shell body (1). The blocking ring (4) of the upper shell body (1) is installed on the plunger rod (3.1) in a sleeving mode and made of a flexible material. The upper shell body (1), the plunger rod (3.1), the sealing sleeve (3.2) and the blocking ring (4) define and form a sealed cavity. The feeding hole (1.1) communicates with the sealed cavity. According to the quantitative filling device, quantitative filling can be precisely conducted, and the filling quantity is convenient to adjust.

Description

technical field [0001] The invention relates to a filling device, in particular to a device capable of accurately and quantitatively filling lubricating grease and the like, and belongs to the field of mechanical technology. Background technique [0002] At present, in the field of mechanical equipment, it is necessary to add lubricating oil to reduce the friction between parts, so that it has a better matching effect; the conventional filling device uses a plunger to push the dispensing head to fill, but this type of In the filling method, after the filling is completed, there will be residual oil on the dispensing head, which will cause the filling volume to be inaccurate and quantitative filling cannot be achieved; and the conventional filling device manually adjusts the air pressure to push the plunger to achieve The difference of filling quantity, because the air pressure can't be accomplished all the time stable, therefore all in the bad defective of adjustment, for th...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of mechanical equipment, it is necessary to add lubricating oil to reduce the friction between parts, so that it has a better matching effect; the conventional filling device uses a plunger to push the dispensing head to fill, but this type of In the filling method, after the filling is completed, there will be residual oil on the dispensing head, which will cause the filling volume to be inaccurate and quantitative filling cannot be achieved; and the conventional filling device manually adjusts the air pressure to push the plunger to achieve Due to the difference in the amount of filling, because the air pressure cannot be kept stable all the time, it is a defect of poor adjustment. Therefore, a new filling device is urgently needed to solve the above problems

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