A spray device with a storage chamber

Abstract

The invention discloses a jet device having a storage chamber. The jet device includes a nozzle, a jet pipe, a valve core and an elastic member. The nozzle is provided with a nozzle chamber and a nozzle mouth communicated therewith. A valve base is arranged on an internal wall of the nozzle chamber. A front end of the jet pipe is communicated with and sealedly connected to a back end of the nozzle, wherein the front end is towards to a jetting direction. A back end of a valve core body of the valve core is provided with two or more than two connecting wings which are vertical to an axial line of the valve core. Channels which allow liquid to enter into the nozzle chamber through the jet pipe are formed between the connecting wings. Under the situation that the valve core is matched with the valve base, the storage chamber is formed between the front ends of the connecting wings and the valve base. The size, in the axial line direction of the valve core, of the storage chamber is 1-3 times of an internal diameter of the nozzle chamber. The elastic member applies a force to a connecting pipe, wherein the force enables the connecting pipe to move towards the valve base. The jet device overcomes a defect that a jet device in the prior art is liable to cause flow breaking or reduction of a jet distance when the jet device in the prior art is used in point jet, especially for jetting a liquid in high viscosity. The invention provides the jet device having the storage chamber. By means of the jet device, a liquid flow is sufficient during point jet so that flow breaking is avoided.

Description

technical field

[0001] The present invention relates to the field of liquid jetting. Specifically, it is an injection device with a storage chamber. Background technique

[0002] Liquid injection is widely used in various fields. The injection device generally has a nozzle and a nozzle. The liquid enters the nozzle from the nozzle and sprays when the valve of the nozzle is opened. When spraying, continuous spraying is sometimes required, and burst injection is sometimes required. During continuous spraying, the liquid is continuously replenished to the nozzle under the action of hydraulic pressure. When spraying, especially when spraying oil with a high viscosity, the valve is in the open state for a short time, and the liquid in the nozzle has no time to replenish the nozzle, and the valve is closed. Since the liquid in the nozzle is not fully replenished, only a small amount of liquid can be ejected or the liquid cannot be ejected when spraying. Even if the liquid can b...

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