CN213621240U

CN213621240U - Air return device of hand-clasping sprayer nozzle

Info

Publication number: CN213621240U
Application number: CN202022086418.2U
Authority: CN
Inventors: 李冠军; 张卫江; 谭雪峰
Original assignee: SEESA HOLDING CO Ltd
Current assignee: SEESA HOLDING CO Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-07-06
Anticipated expiration: 2030-09-22

Abstract

The air return device of the hand-buckled sprayer nozzle comprises a sprayer body, wherein a nozzle and a handle are arranged on the sprayer body, the nozzle is connected with a water spray pipeline and a pump cavity, a connecting pipe is arranged below the sprayer body and connected with an inner plug and a bottle cap, a suction pipe is arranged in the inner plug and communicated with the water spray pipeline and the pump cavity through the inner plug, the bottle cap is connected with a spraying container, a spacer sleeve is arranged in the connecting pipe below the sprayer body, a ring cavity is formed between the spacer sleeve and the connecting pipe, the upper part of the inner plug is inserted into the ring cavity, a sprayer body air return hole is arranged at the top of the ring cavity and communicated with the outside, a valve plate sleeve is arranged on the outer wall of the spacer sleeve, a valve plate is arranged at the upper end of the valve plate sleeve and is in sealing contact with the sprayer body air return hole, an inner.

Description

Air return device of hand-clasping sprayer nozzle

Technical Field

The utility model relates to a hand knot formula atomizer especially relates to air return device of hand knot formula atomizer shower nozzle, mainly used spraying is moisturized, is sprayed detergent, insecticide, cosmetics to and water flowers etc..

Background

The hand-buckled sprayer for spraying, moisturizing, washing agent, cosmetics, pesticide and other articles in the market at present has two air return modes, one is as in Chinese utility model patent 99215476.6, the patent name is 'micro sprayer nozzle', the sprayer nozzle is provided with an air return mechanism, the so-called air return mechanism is that the outer wall of a water spray rod is provided with an air return rod, the head of the air return rod is provided with an air return piston, an air return cylinder is arranged in a sprayer body and matched with the air return piston, an air return passage is arranged in an air return spacer sleeve and a ball valve bracket (inner plug) of the sprayer body, the air return mechanism is provided, so that the negative pressure generated after the liquid in a liquid storage bottle is sucked is recovered, and the continuous spraying is facilitated, the scheme has a complex structure, the air return cylinder is additionally arranged in the sprayer body, the volume of the sprayer body is increased, the product weight is increased, and the design and manufacture difficulty of an injection mold of the sprayer body is increased, meanwhile, when the product works, the air return piston reciprocates in the air return cylinder, so that the friction resistance is increased; the other air return mode is that a bottle mouth pad is not arranged between the bottle cap and the bottle mouth, a narrow air return groove is arranged on the end face of the inner plug contacting with the bottle mouth or the outer side face of the inner plug, so that the liquid bottle is communicated with the outside, and the outside air is automatically supplemented into the bottle when negative pressure is generated in the bottle.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and providing the air return device which has the air return function, prevents water leakage during inversion, has simple structure and is easy to manufacture.

The utility model discloses hand-clasping type atomizer nozzle's return-air device's technical scheme is: the spray head comprises a spray head body, wherein a nozzle and a handle are arranged on the spray head body, the nozzle is connected with a water spray pipeline and a pump cavity, a connecting pipe is arranged below the spray head body, the connecting pipe is connected with an inner plug and a bottle cap, a suction pipe is arranged in the inner plug and is communicated with the water spray pipeline and the pump cavity through the inner plug, the bottle cap is connected with a spray container, a spacer sleeve is arranged in the connecting pipe below the spray head body, a ring cavity is formed between the spacer sleeve and the connecting pipe, the upper part of the inner plug is inserted into the ring cavity, a spray head body air return hole is arranged at the top of the ring cavity and is communicated with the outside, a valve sheet sleeve is arranged on the outer wall of the spacer sleeve, a valve sheet is arranged at the upper end of the valve sheet sleeve, the valve.

The utility model discloses an air return device of a hand-buckled sprayer nozzle, when a sprayer body works, a pump in a pump cavity is driven to work through a handle, so as to generate negative pressure in the spraying container, make the liquid in the spraying container pass through the suction pipe, the inner plug, the pump cavity and the water spraying pipeline and finally be sprayed out from the nozzle, when the pressure inside the spraying container reaches a certain pressure, the external air overcomes the elasticity of the valve plate to push the valve plate to open, the external air enters the annular cavity through the air return hole of the spray head body and enters the spraying container through the air return hole of the inner plug, so that the negative pressure in the spraying container is recovered to realize the air return function, when the interior of the spray container is maintained in a normal pressure state, the valve plate is in sealing contact with the air return hole of the spray head body again under the action of elasticity, so that the liquid in the spray container is prevented from leaking out through the air return hole of the spray head body when the spray container is inverted, and the sealing performance of the spray container is ensured.

The utility model discloses hand knot formula atomizer nozzle's return-air device, the inner plug in system have the clamping ring, the clamping ring inboard cooperatees with the spacer outside, the lower extreme of clamping ring upper end and valve plate cover contacts. The inboard cooperation in spacer sleeve outside of clamping ring prevents that the pump during operation, and liquid backward flow from getting into the annular chamber, and the stopper return air hole gets into spray container again, and the clamping ring plays the positioning action to the valve plate cover, prevents its slippage downwards, and influences the leakproofness.

The top of the annular cavity is a plane or a regular curved surface. The top of the annular cavity adopts a plane or a regular curved surface, so that the valve plate is contacted and attached to the annular cavity, and the sealing performance is ensured.

The valve plate is plane or conical or bowl-shaped.

Drawings

FIG. 1 is a perspective view of the air return assembly of the hand sprayer nozzle in an exploded position;

fig. 2 is a schematic structural view of an air return device of a hand-held sprayer nozzle.

Detailed Description

The utility model relates to an air return device of hand-clasping sprayer nozzle, as shown in figure 1-figure 2, comprising a sprayer body 1, a nozzle 2 and a handle 3 are arranged on the sprayer body, the nozzle is connected with a spray pipe 4 and a pump cavity 5, a connecting pipe 6 is arranged under the sprayer body, the connecting pipe is connected with an inner plug 7 and a bottle cap 8, a suction pipe 9 is arranged in the inner plug, the suction pipe is communicated with the spray pipe 4 and the pump cavity 5 through the inner plug, the bottle cap is connected with a spraying container, a spacer 10 is arranged in the connecting pipe 6 under the sprayer body 1, a ring cavity 11 is formed between the spacer and the connecting pipe, the upper part of the inner plug is inserted into the ring cavity, a sprayer body air return hole 12 is arranged at the top of the ring cavity, the sprayer body air return hole is communicated with the outside, a valve sheet sleeve 13 is arranged on the outer wall of the spacer, a valve sheet 14 is arranged at the upper end of the valve sheet, the inner plug return air hole is communicated with the annular cavity 11. When the spray head body 1 works, the pump in the pump cavity 5 is driven to work through the handle 3, so that negative pressure is generated inside the spray container, liquid in the spray container passes through the suction pipe 9, the inner plug 7, the pump cavity 5 and the water spraying pipeline 4 and is finally sprayed out from the nozzle 2, when the inside of the spray container reaches a certain pressure intensity, outside air overcomes the elasticity of the valve plate 14 to push the valve plate to open, outside air enters the annular cavity 11 through the spray head body air return hole 12 and enters the spray container through the inner plug air return hole 15, so that the negative pressure in the spray container is recovered, the air return function is realized, when the inside of the spray container is maintained in a normal pressure state, the valve plate 14 is in sealing contact with the spray head body air return hole 12 again under the action of the elasticity, when the spray container is inverted, the liquid in the spray container is prevented from leaking out through the spray head body air. The inner plug 7 is provided with a press ring 16, the inner side of the press ring is matched with the outer side of the spacer sleeve 10, and the upper end of the press ring is contacted with the lower end of the valve plate sleeve 13. The inboard cooperation with the spacer sleeve 10 outside of clamping ring 16 prevents that the pump during operation, liquid backward flow from getting into annular chamber 11, and the internal stopper return air vent 15 gets into the aerosol container again, and clamping ring 16 plays the positioning action to valve plate cover 13, prevents its slippage downwards, and influences the leakproofness. The top of the annular cavity 11 is a plane or a regular curved surface. The top of the annular cavity 11 adopts a plane or a regular curved surface, so that the valve plate 14 is contacted and attached to the annular cavity, and the sealing performance is ensured. The valve plate 14 is plane, conical or bowl-shaped.

Claims

1. Hand-buckled atomizer sprayer's return-air device, including sprinkler body (1), set up nozzle (2) and handle (3) on the sprinkler body, spray pipe (4) and pump chamber (5) are connected to the nozzle, and the system has connecting pipe (6) under the sprinkler body, and stopper (7) and bottle lid (8) in the connecting pipe connection set up straw (9) in the stopper, and the straw communicates with each other with spray pipe (4) and pump chamber (5) through stopper in, and the spraying container, its characterized in that are connected to the bottle lid: the improved spray head is characterized in that a spacer sleeve (10) is arranged in a connecting pipe (6) below the spray head body (1), an annular cavity (11) is formed between the spacer sleeve and the connecting pipe, the upper part of the inner plug is inserted into the annular cavity, a spray head body air return hole (12) is formed in the top of the annular cavity and communicated with the outside, a valve sheet sleeve (13) is arranged on the outer wall of the spacer sleeve, a valve sheet (14) is arranged at the upper end of the valve sheet sleeve and in sealing contact with the spray head body air return hole (12), an inner plug air return hole (15) is formed in the inner plug (7), and the inner plug air return hole is communicated with the annular cavity.

2. The air return apparatus of a spray head of a trigger sprayer according to claim 1, wherein: the inner plug (7) is provided with a pressure ring (16), the inner side of the pressure ring is matched with the outer side of the spacer sleeve (10), and the upper end of the pressure ring is contacted with the lower end of the valve sheet sleeve (13).

3. The air return apparatus of a spray head of a trigger sprayer according to claim 1, wherein: the top of the annular cavity (11) is a plane or a regular curved surface.

4. The air return apparatus of a spray head of a trigger sprayer according to claim 1, wherein: the valve plate (14) is plane or conical or bowl-shaped.