Sprayer with dust cover

Abstract

The invention discloses a sprayer with a dust cover. The sprayer with the dust cover comprises a combination cover. A pump chamber is connected with the interior of the combination cover. An upper pump rod is arranged inside the pump chamber. A limiting convex block is arranged on the outer wall of the upper pump rod. The portion, below the limiting convex block, of the upper pump rod is movably sleeved with a sucking plug. A lower pump rod is arranged below the sucking plug. A chock plug is arranged at the lower end of the lower pump rod. The lower pump rod is movably arranged inside the upper pump rod. A lower ejecting spring is arranged between the lower end of the lower pump rod and the pump chamber. An upper ejecting spring is arranged between the sucking plug and the limiting convex block. A pump bead mechanism is arranged at the liquid inlet end of the pump chamber. The portion, at the upper end of the limiting convex block, of the upper pump rod is sleeved with a locking cover. The upper end of the upper pump rod extends out of the pump chamber. The upper end of the upper pump rod is connected with a liquid spraying pressing head. The upper end face of the combination cover extends upwards to form a buckling-connection part. The dust cover is buckled to the buckling-connection part. The liquid spraying pressing head is arranged inside the dust cover. The sprayer with the dust cover is simple in structure, convenient to use, capable of effectively preventing dust and other pollutants from entering the sprayer and effectively preventing from being pressed by mistake, safe and reliable.

Description

technical field [0001] The invention relates to a sprayer with a dustproof cover. Background technique [0002] Existing spray pump has been widely used in industries such as daily chemical and medicine because of its exquisite design and convenient use. However, after the existing spray pump is unpacked, the nozzle of the spray pump will be exposed outside for a long time, and pollutants such as dust are easy to enter the nozzle during use, causing pollution. In addition, due to design defects, existing spray pumps have disadvantages such as relatively slow starting of the pump during use, relatively unstable discharge volume, and the like. Can not meet the needs of users. [0003] Existing oral sprayers generally do not have protection devices, and the button of the sprayer is easily squeezed and moved down due to misoperation during transportation or use, resulting in waste or unnecessary accidents, and the safety is not strong. [0004] Therefore, the existing sprayer...

AI Technical Summary

Problems solved by technology

However, after the existing spray pump is unpacked, the nozzle of the spray pump will be exposed to the outside for a long time, and pollutants such as dust can easily enter the nozzle during use, causing pollution

In addition, due to the defects in the design of the existing spray pumps, there are disadvantages such as relatively slow start of the pump during use, and relatively unstable discharge volume.

Can not meet the needs of users

[0003] Existing oral sprayers generally do not have protection devices, and the button of the sprayer is easily squeezed and moved down due to misoperation during transportation or use, resulting in waste or unnecessary accidents, and the safety is not strong

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