Lubricating oil adding device for sewing machine

Abstract

The invention discloses a lubricating oil adding device for a sewing machine. The lubricating oil adding device comprises a bottle body, a bottle cap, an oil conveying pipe, a handle, a connecting cover, an oil draining pipe and a spring. An oil storage bag is installed inside the bottle body. The bottom end of the bottle cap is connected with the top end of the bottle body in a threaded mode. Theoil conveying pipe is fixed into the bottle cap. The bottom end of the oil conveying pipe communicates with the oil storage bag, and the top end of the oil conveying pipe communicates with a bellows.The top end of the bellows is fixedly connected with the connecting cover. The connecting cover is fixed into the bottle cap. An oil pumping check valve and an oil draining check valve are fixed intothe connecting cover. The bellows communicates with an oil injection sharp spout. The handle is installed at one side of the bottle body. The top end of the handle is fixedly connected with a pressing plate. A rotating shaft is installed at the connecting position of the pressing plate and the handle in a rotating mode. The pressing plate penetrates through a notch and is fixedly connected with the bottom end of the bellows. The lubricating oil adding device for the sewing machine has the advantages that oil can be fed at any angle, the oil feeding amount is stable every time, the structure is simple and the oil storage bag can be replaced conveniently.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a lubricating oil adding device for sewing machines. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing materials. The sewing machine can sew cotton, hemp, silk, wool , artificial fiber and other fabrics and leather, plastic, paper and other products, the stitches are neat and beautiful, flat and firm, with fast sewing speed and easy use. [0003] Sewing machines are generally lubricated by hand. Open an oil hole in the part that needs to be lubricated and use the oil can to refuel. Generally, the oil can for sewing machines can only be oiled from the top down, and the amount of oil is controlled by pressing the oil can with the hand. , It is easy to give too much or too little oil. Contents of the invention [0004] The o...

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Problems solved by technology

[0004] The object of the present invention is to provide a lubricating oil adding device for sewing machines, which has the advantages of being able to supply oil at any angle, the amount of oil supplied each time is stable, simple in structure, and convenient to replace the oil storage bag, which solves the problem of the common sewing machine oil can. Oil can be supplied by standing upside down from above, and the amount of oil supplied is controlled by the force of pressing the oil pot by hand, which is prone to problems of too much or too little oil

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