Perfume bump with external spring

Abstract

A perfume bump valve needle unit has a valve needle, piston, spring and valve rod. A bump body unit has a valve needle unit, bump body, glass bulb and inner stopper. A bump head unit has an alumina press cap, spay chip and head cap. A valve rod external diameter between the inner piston and stopper has a Y-shaped spring with an end fixed to a recess and hold. A piston limit is at the valve needle head; an opposing needle bar sets into the rod center hole. A ring recess at the valve needle bar end snap-fits with a rod inner diameter ring buckle. The valve needle external diameter has an effluent trough from the ring recess to the head. A piston internal ring and rod external diameter fit and seal. A channel between trough and piston open when the rod, piston and valve needle move to the bulb.

Claims

1. A perfume bump with external spring comprising: a bump body that is fixed with a bayonet, and a first end of the bayonet includes a washer; a glass bulb that is disposed at a first end of the bump body such that the glass bulb is inside the bump body, the first end of the bump body being a liquid inlet end; a stopper that is disposed at a second end of the bump body, the second end of the bump body being snap-fit with the stopper, and the stopper being sealed within an end of the bayonet; a valve rod that extends within the bump body such that the valve rod is radially inward of the stopper and of the bayonet; a press cap that is connected to the valve rod and that includes a spray chip; a spring that is connected to the valve rod; a valve needle that is disposed radially inward of the spring; and a piston that slidably divides the bump body into an upper cavity and a lower cavity, and is disposed at least partly radially outward of the valve needle, the upper cavity being located toward the stopper, the lower cavity being located toward the glass bulb, wherein: the spring, the valve needle, and the piston are all disposed within the bump body, the spring is fixedly connected to the piston, the spring is the only spring in the perfume bump and is provided inside the upper cavity, the lower cavity is configured to contain perfume and is sealed from the upper cavity to prevent direct contact between the spring and the perfume, the valve needle is disposed within a center hole of the valve rod, a ring is disposed at a first end of the valve needle, an external surface of the valve needle includes a trough, which is in sliding engagement with the ring to provide a moveable seal, the spring extends from the stopper to the piston, and movement of the press cap downwards, towards the glass bulb, causes the piston to apply a downward force on the glass bulb and causes the moveable seal to open so that liquid is sprayed from the perfume bump.

2. The perfume bump according to claim 1, wherein the trough is a channel with a flat section.

3. The perfume bump according to claim 1, wherein the valve needle is a T-head bolt, and a cavity above the glass bulb is reserved for the valve needle to move downward.

4. The perfume bump according to claim 1, wherein the valve rod includes a recess such that a portion of the piston is disposed in the recess.

5. The perfume bump according to claim 1, wherein the valve rod forms an interference fit with the stopper.

6. The perfume bump according to claim 1, wherein the spring is attached to the stopper and to the piston.

7. The perfume bump according to claim 1, wherein the press cap includes a top slot with an arc groove.

8. The perfume bump according to claim 1, wherein the spring has a Y-shape with a tower section toward the stopper and a column section toward the piston.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is cross-sectional view of the invention at initial state.

(2) FIG. 2 is cross-sectional view of the invention of FIG. 1 at press state; arrows indicate the direction of fluid.

(3) FIG. 3 is the cross-sectional view of bump body of the invention.

(4) FIG. 4 is the cross-sectional view of part of FIG. 3.

(5) FIG. 5 is the view of explosion structure of bump body unit of the invention; the special-shape spring is omitted in the figure.

(6) FIG. 6 is the view of internal structure of alumina cap.

(7) FIG. 7 is the structural view of special-shape spring of the invention.

(8) Number and Name: 1. Straw; 2. Bump body; 3. Glass bulb; 4. Valve needle; 401. Effluent trough; 5. Piston; 6. Alumina bayonet; 7. Special-shape spring; 8. Washer; 9. Inner stopper; 10. Valve rod; 11. Head cap; 1101. Arc groove; 1102. Top slot; 12. Spray chip; 13. Alumina press cap

DESCRIPTION OF THE PREFERRED EMBODIMENT

(9) Turning to the drawings, and further description of structure and usage of the invention is provided. As shown in FIG. 1-7, the perfume bump is integrated by straw 1, bump body 2, glass bulb 3, valve needle 4, piston 5, Alumina bayonet 6, special-shape spring 7, washer 8, inner stopper 9, valve rod 10, head cap 11, spray chip 12, and alumina press cap 13. The valve needle unit is composed by valve needle, piston, special-shape spring and valve rod, while bump body unit is composed by valve needle unit, bump body, glass bulb and inner stopper. Bump head unit is composed by press cap, spay chip and head cap. The glass bulb is located at the end of liquid inlet inside the bump body, and is movable fit and sealed with slope at the liquid inlet of bump body, and fixed by buckle and controls the movement stroke of glass bulb. Special-shape spring is located in external diameter of valve rod between inner diameter of bump body and valve rod, two ends of special spring fixed of stepped groove of upper pump inlet of bump body and stepped raised limit ring bar of external diameter of piston section of valve rod respectively. The external diameter of valve needle is equipped with effluent trough 401; the needle head end of valve needle is equipped with valve needle ring bar, whose piston side is equipped with valve needle ring recess. The valve needle ring recess is press against with glass bulb end of inner ring of piston. The valve needle ring recess and inner ring of piston are movable fit and sealed; the ring recess at needle bar of valve needle is snap-with ring buckle at inner diameter of valve rod. They are buckled tightly, to avoid separation of valve needle and valve bar under the action of special-shape spring. The inner ring of piston and outer diameter of valve rod are glidingly connected and sealed. It may prevent liquid from flowing into spring cavity of upper cavity of bump body through space between valve rod and piston when the seal between valve needle and piston are open. The external ring of piston and cavity surface of inner wall of bump body is sliding fit and sealed. The bump body is separated by piston into upper cavity and lower cavity. The upper cavity is spring cavity, and the lower cavity is seal cavity, i.e. piston, valve needle, bump body and glass bulb form seal cavity, while piston, inner stopper, valve rod and bump body form spring cavity. The special-shape spring is located in spring cavity.

(10) The specific structure: ring recess at one end of alumina bayonet 6 is equipped with washer 8. Glass bulb 3 is equipped at the end of liquid inlet inside the bump body 2, the other end of bump body is snap-fit with inner stopper 9, and sealed in boss at the end of alumina bayonet; valve rod 10 of bump body unit extends out from inner stopper and alumina bayonet, and connected with head cap 11 inside the alumina press cap 13. The top at the centre hole inside of head cap is equipped with top slot 1102, and the edge of head cap at the top slot side is equipped with arc groove 1101. The centre hole of valve rod is connected with head cap hole, and the head cap nozzle of alumina press cap is equipped with spry chip 12. The external diameter of valve needle 4 inside the bump body is equipped with piston 5. The external diameter at inner stop side of the said valve rod is equipped with valve rod ring bar, and valve rod ring recess is equipped at the piston side of valve rod ring bar. The valve road ring recess is engaged and sealed with inner stopper 9 ring recess. The external diameter of valve rod between inner piston and inner stopper is equipped with special-shape spring 7. The special-shape spring that is Y-shaped. One end of special-shape spring is tower spring section, and the other end is column spring section. The valve rod ring bar of the said valve rod is located in tower section of special-shape spring. The column section of special-shape spring is located in external diameter at piston end of valve rod. Piston limit is located at the needle head of valve needle, the needle bar at the other end of valve needle sets into the centre hole of valve rod. Ring recess at the needle bar end of valve needle snap-fit with ring buckle of inside diameter of valve rod. The effluent trough 401 of valve needle goes through from ring recess to needle head of valve needle. The valve needle is T-head bolt. The needle head of valve needle is smaller than liquid hole at the side of glass bulb inside bump body. Liquid inlet above glass bulb is reserved cavity for valve needle to move downward. Plane angle at liquid hole inside bump body is equipped with piston limit bar.

(11) In the same time, the stepped groove of bump body is located at the expansion area of bump hole on inner wall of bump body. The piston side of valve needle ring is equipped with valve needle ring recess. Valve needle ring recess and inner ring of piston is interference sealed and combined; piston is integrated with valve rod. The air vent is equipped at the piston of bump body, i.e. the air vent is equipped between seal plastics at two ends of external ring of piston. The external diameter of rod mouth of valve rod and head cap is buckled through concave-convex bar, to avoid loosening due to temperature and aging. The chip is located inside the spray chip hole of alumina press cap, and limited the movement scope of alumina press cap, to prevent head cap and alumina press cap from being loosening or falling out due to expansion-shrinkage caused by temperature or time factors after assembly, as well as to prevent alumina press cap from falling out by pulling head cap.

(12) During use of the perfume bump, press head cap, the tower section of special-shape spring will be stretched and deformed, to make head cap drive valve rod, piston and valve needle move downward. At the moment, the pressure inside the seal cavity is greater than external pressure, and pressure difference has been formed. When piston presses against the step at glass bulb inside the bump body, keep pressing head cap, and the column section of special-shape spring will tighten, and make movable seal between inner ring of piston and ring recess of valve needle open. The pressure will enter the spray chip of bump head unit through effluent trough of valve needle, and be atomized and sprayed out. Loosen head cap, the inner ring of piston and ring recess of valve needle will be sealed under the action of back stretch due to compressed column section of special-shape spring, and force each component reset under tensioning action of tower section of special-shape spring. At the moment, the inner pressure of seal cavity will reduce, and the movable seal slope between glass bulb and fluid inlet of bump body will open automatically. The fluid will flow into seal cavity through straw under pressure. Repeat the action and the fluid will be sprayed out.