CN200967630Y

CN200967630Y - Bead-free blow head

Info

Publication number: CN200967630Y
Application number: CN 200620140150
Authority: CN
Inventors: 邱征光
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-22
Filing date: 2006-11-22
Publication date: 2007-10-31
Anticipated expiration: 2016-11-22

Abstract

A ball-free sprayer pertains to the sprayer field, which comprises a cap, a closing cover in which a pump body equipped with a straw on the bottom and connected with the top cover is positioned, and a piston rod which is seal slide fitted with the pump and whose top protrudes from the closing cover and is connection fitted with the cap. The model is characterized in that in the cavity of the piston rod is provided a valve needle which is contact fitted with the top, in the cavity of the valve needle is provided a spring whose lower side is connected with the pump body, small pistons are arranged between the interior wall of the pump body and the exterior wall of the valve needle, the valve needle is seal slide fitted with the small piston while the valve body is seal connection fitted with the small piston. The ball-free sprayer, which is simple and compact in structure, is very convenient to assemble due to a few of components and the only one spring, in particular, the steel ball-free design can allow for excellent product quality and using effects because of avoidance of corrosion and jam of steel ball. While in use, the sprayer gives comfortable touch feeling and produces uniform spray without any drip.

Description

No-bead nozzle

Technical field

The utility model belongs to the shower nozzle technical field, is specially a kind of no-bead nozzle.

Background technology

Need to adopt shower nozzle in the packing of the liquid products such as perfume, cosmetics, cleaning supplies and medical supplies that generally use in the daily life mostly, existing shower nozzle mainly by head cap, the card cap, form by bar, upper spring, lower spring, piston, the pump housing, steel ball and suction pipe, its architecture complexity, the assembling loaded down with trivial details, and exist spraying irregular, the water droplet phenomenon is arranged, particularly the steel ball in the pump housing gets rusty easily and screens takes place, and influences product quality and result of use.

The utility model content

For overcoming problems of the prior art, the utility model design provides a kind of technical scheme of no-bead nozzle, and it is simple in structure, and is easy to assembly, and spraying evenly, and atomizing effect is good, and does not have the water droplet phenomenon.

Described no-bead nozzle, comprise head cap, capping, connect the pump housing that bottom band suction pipe is set by loam cake in the capping, stretch out capping with the piston rod part of pump housing sealed sliding running-fit and be connected cooperation with head cap, it is characterized in that piston rod cavity is provided with the pin that cuts down that the top touches cooperation, cut down the pin inner chamber lower end and pump housing bonded assembly spring are set, the pump housing and cut down between the pin inside and outside wall valve piston is set, cut down pin and cooperate with the inside and outside slipper seal of valve piston, inside and outside moving the connecing of the pump housing and valve piston is sealed and matched.

Described no-bead nozzle is characterized in that valve piston outer wall top is set to ramp structure, and the bottom is provided with groove, and corresponding pump housing inwall is provided with the fin on band inclined-plane.

Described no-bead nozzle is characterized in that piston rod top is provided with the through hole be communicated with inner chamber, cuts down pin and the through hole lower port contacts sealing.

Described no-bead nozzle is characterized in that the underpart of the piston rod outer wall is made as ramp structure, and the bottom is provided with the protruding circle of concave surface, by protruding circle of concave surface and pump housing sealed sliding running-fit.

Described no-bead nozzle is characterized in that cutting down pin shoulder outer wall air discharge duct is set.

Described no-bead nozzle is characterized in that the relevant position of pump housing upper end and loam cake is provided with air inlet duct.

Above-mentioned no-bead nozzle, simple in structure, compact, because constituent elements is few, and only uses a spring, assemble more conveniently, particularly adopted the design of no steel ball technology, avoid steel ball dirt rust, screens and influenced product quality and result of use.When product uses, comfortable feel, spraying is even, and atomizing effect is good, no water droplet phenomenon.

Description of drawings

Fig. 1 is the utility model structural representation; Fig. 2 is the structural representation of head cap; Fig. 3 is the structural representation of loam cake; Fig. 4 is the cross-sectional view of piston rod; Fig. 5 is a cross-sectional view of cutting down pin; Fig. 6 is the structural representation of valve piston; Fig. 7 is the structural representation of the pump housing; Fig. 8 is the cross-sectional view of the pump housing;

Among the figure: the 1-head cap, the 2-piston rod, the 3-loam cake, 4-cuts down pin, 5-spring, the 6-pump housing, 7-valve piston, 8-suction pipe, 9-capping, 10-air inlet duct, 10a-air inlet duct, 11-through hole, the protruding circle of 12-concave surface, 13-air discharge duct, 14-groove, 15-fin.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiment of the utility model in detail.

As shown in the figure, this no-bead nozzle, comprise head cap 1, capping 9, connect the pump housing 6 that bottom band suction pipe 8 is set by loam cake 3 in the capping 9, stretch out capping 9 and be connected cooperation with piston rod 2 tops of the pump housing 6 sealed sliding running-fits with head cap 1, what piston rod 2 inner chambers were provided with that the top touches cooperation cuts down pin 4, cut down pin 4 inner chambers lower end and the pump housing 6 bonded assembly springs 5 are set, the pump housing 6 and cut down between pin 4 inside and outside walls valve piston 7 is set, cut down pin 4 and cooperate with valve piston 7 inside and outside slipper seals, the pump housing 6 is sealed and matched with valve piston 7 inside and outside moving connecing.The relevant position of the pump housing 6 upper ends and loam cake 3 is provided with air inlet duct 10a, 10.Piston rod 2 tops are provided with the through hole 11 that is communicated with inner chamber, cut down pin 4 and contact sealing with through hole 11 lower port.Cut down pin 4 interior top of chamber reinforced rib is set, play the effect of blocking spring 5.Piston rod 2 bottom outer walls are made as ramp structure, and the bottom is provided with the protruding circle 12 of concave surface, by protruding circle 12 of concave surface and the pump housing 6 sealed sliding running-fits.Piston rod 2 bottoms also can be provided with two-stage seal ring and the pump housing 6 sealed sliding running-fits.Cut down pin 4 shoulder outer walls air discharge duct 13 is set, valve piston 7 outer wall tops are set to ramp structure, and the bottom is provided with groove 14, and the corresponding pump housing 6 inwalls are provided with the fin 15 on band inclined-plane.

During use, press head cap 1, piston rod 2 push down cut down pin 4 along valve piston 7 inwalls to lower slider, the close-fitting of the inclined-plane of the inclined-plane of valve piston 7 external wall of upper portion and fin 15 sealing simultaneously, valve piston 7 is discharged from suction pipe 8 with the air that cuts down in pin 4 intermediate cavity in the pump housing 6, cuts down being compressed of pin 4 exocoels in the pump housing 6, continues to press down, the air discharge duct 13 that cuts down pin 4 moves to valve piston 7 inner wall positions, and the air of exocoel is discharged by suction pipe 8 through air discharge duct 13; After loosing one's grip, under the effect of spring 5, piston rod 2 is toward last time, and valve piston 7 is along moving on the pump housing 6, the inclined-plane of valve piston 7 external wall of upper portion separates with the inclined-plane of fin 15, the cavity up and down of the pump housing 6 is communicated with, and under the effect of pressure, liquid suction passage 8, groove 14 are drawn in the pump housing 6, after several repeatedly actions, when the fluid pressure in the pump housing 6 during greater than spring 5 application forces, cut down pin 4 and separate with 2 moments of piston rod, make liquid pass through through hole 11, head cap 1 atomizing ejection.Above-mentioned valve piston 7 is realized sealing when moving down in the process of moving up and down, on when moving the inclined-plane of valve piston 7 upper inclined surface and fin 15 break away from, thereby realizing moving to connect is sealed and matched.

Head cap 1 selects poly-third for use: PP is as material, loam cake 3 is selected high density polyethylene (HDPE) for use: HDPE is as material, piston rod 2 is selected low density polyethylene (LDPE) for use: LDPE is as material, cut down pin 4 and select low density polyethylene (LDPE) for use: LDPE is as material, valve piston 7 is selected for use high density polyethylene (HDPE) to add 30% ethene: HDPE to add 30%EVA as material, the pump housing 6 selects poly-third for use: PP is as material, and spring 5 selects for use the corrosion-resistant steel steel wire as material, and suction pipe 8 is selected polyethylene for use: PE is as material.

Claims

1, no-bead nozzle, comprise head cap (1), capping (9), connect the pump housing (6) that bottom band suction pipe (8) is set by loam cake (3) in the capping (9), stretch out capping (9) and be connected cooperation with piston rod (2) top of the pump housing (6) sealed sliding running-fit with head cap (1), what it is characterized in that piston rod (2) inner chamber is provided with that the top touches cooperation cuts down pin (4), cut down pin (4) inner chamber lower end and the pump housing (6) bonded assembly spring (5) are set, the pump housing (6) and cut down between pin (4) inside and outside wall valve piston (7) is set, cut down pin (4) and cooperate with the inside and outside slipper seal of valve piston (7), the pump housing (6) is sealed and matched with inside and outside moving the connecing of valve piston (7).

2, no-bead nozzle as claimed in claim 1 is characterized in that valve piston (7) outer wall top is set to ramp structure, and the bottom is provided with groove (14), and the corresponding pump housing (6) inwall is provided with the fin (15) on band inclined-plane.

3, no-bead nozzle as claimed in claim 1 is characterized in that piston rod (2) top is provided with the through hole (11) that is communicated with inner chamber, cuts down pin (4) and contacts sealing with through hole (11) lower port.

4, no-bead nozzle as claimed in claim 1 is characterized in that piston rod (2) bottom outer wall is made as ramp structure, and the bottom is provided with the protruding circle of concave surface (12), by protruding circle of concave surface (12) and the pump housing (6) sealed sliding running-fit.

5, no-bead nozzle as claimed in claim 1 is characterized in that cutting down pin (4) shoulder outer wall air discharge duct (13) is set.

6, no-bead nozzle as claimed in claim 1 is characterized in that the relevant position of the pump housing (6) upper end and loam cake (3) is provided with air inlet duct (10a, I0).