CN2699006Y

CN2699006Y - Bidirectional working plunger pump adapted for atomizer

Info

Publication number: CN2699006Y
Application number: CN 200420046380
Authority: CN
Inventors: 林俊
Original assignee: GUANGZHOU BAIDESHENG ELECTROMECHANICAL HARDWARE PACKAGING MATERIAL CO Ltd
Current assignee: GUANGZHOU BAIDESHENG ELECTROMECHANICAL HARDWARE PACKAGING MATERIAL CO Ltd
Priority date: 2004-05-31
Filing date: 2004-05-31
Publication date: 2005-05-11
Anticipated expiration: 2014-05-31

Abstract

The utility model provides a plunger pump suitable for the sprayers, comprising a plunger cylinder and a plunger piston. The plunger cylinder is provided with a front cylinder cover and a back cylinder cover. The plunger piston divides the plunger cylinder into a front cavity and a back cavity. The front cavity of the plunger cylinder is provided with a water inlet and a water inlet non-return valve. The back cavity of the plunger cylinder is provided with a water outlet. The plunger piston comprises a plunger piston post and plunger piston adhesive. The plunger piston post and the plunger piston adhesive are provided with a hole communicated with the front cavity and the back cavity of the plunger cylinder. The hole is provided with a communication non-return valve from the front cavity to the back cavity. The plunger pump of the utility model has single channel but bidirectional work applying with only one set of water inlet and outlet components and thus the utility model has simple structure, small volume, light weight and high pressure and can satisfy the market requirements.

Description

A kind of two-way work doing plunger pump that is applicable to sprayer

Technical field

The utility model relates to a kind of plunger pump, especially relates to a kind of two-way work doing plunger pump that is applicable to sprayer.

Background technique

For motorized knapsack, the primary requirement of the plunger pump that is adopted is that volume is little, in light weight, pressure is big.And its structural principle of two-way work doing plunger pump that existing motorized knapsack adopted is: comprise plunger case and plunger, cylinder cap before and after plunger case has, chamber before and after plunger is divided into plunger case, plunger is to-and-fro motion in plunger case, the one or both ends of plunger case have entery and delivery port, one-way valve all is housed on the entery and delivery port, and the plunger to-and-fro motion makes the cavity volume of plunger cylinder end constantly change, and goes out from the water outlet setting-out from the water intake suction and is achieved spraying.Owing to all the water-in and water-out parts will be arranged before and after the plunger case, make complex structure, volume be difficult to dwindle, weight is bigger, and pressure is difficult to improve and does not promptly reach spraying distance far away.

The model utility content

The purpose of this utility model just provides a kind of two-way work doing plunger pump that is applicable to sprayer, and its volume hydraulic pressure little, in light weight, that produce is big.

For achieving the above object, the two-way work doing plunger pump that is applicable to sprayer of the present utility model, comprise plunger case and plunger, cylinder cap before and after plunger case has, chamber before and after plunger is divided into plunger case, it is characterized in that: have water intake on the described plunger case ante-chamber, into water one-way valve is housed, have water outlet on the plunger case back cavity, described plunger is made up of plunger post, plunger glue, the plunger mucilage binding is at plunger post front end, have the hole in plunger post, the plunger glue and be communicated with chamber, plunger case front and back, the connection one-way valve from the ante-chamber to the back cavity is housed in the hole.

Like this when plunger moves ahead, the water inlet closed check valve of plunger case ante-chamber, it is open-minded to be communicated with one-way valve, water in the ante-chamber is forced into back cavity, since plunger rod, the volume that the compressed volume of plunger case ante-chamber increases greater than the plunger case back cavity, and Gu Shui is pressed from water outlet to spray; When going behind the plunger, be communicated with one-way valve and be closed, the water in the back cavity is pressed equally to spray from water outlet, and the water inlet one-way valve opens of ante-chamber water inlet meanwhile goes round and begins again, the single channel bidirectional acting.

The beneficial effects of the utility model are: because this novel plunger pump is the single channel bidirectional acting, only need one to pack into water outlet part, make structure simpler, volume is little, in light weight, pressure is big, can satisfy market demands.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the utility model embodiment's a structure cross-sectional schematic.

Fig. 2 is the L shaped water output connector part-structure of a pump housing cross-sectional schematic.

Fig. 3 is the cross-sectional schematic of plunger glue.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the cross-sectional schematic of plunger nut.

Fig. 6 is the right elevation of Fig. 5.

Among the figure: 1 plunger case, 2 plungers, 21 plunger posts, 22 plunger glue, 23 are communicated with one-way valve, 24 plunger nuts, 3 water inlet one-way valves, the unidirectional valve seat of 4 water inlets, 5 front end housings, 6 back cylinder covers, 7 pump housings, 8L shape water output connector.

Embodiment

As depicted in figs. 1 and 2, the two-way work doing plunger pump embodiment who is applicable to sprayer of the present utility model, comprise plunger case 1 and plunger 2, before plunger case has, back cylinder cover 5,6, before plunger is divided into plunger case, back cavity, be easy consideration on a large amount of fast water inlets of moment and the manufacturing mounting process, the into unidirectional valve seat 4 of water is housed between plunger case and front end housing, before and after the valve seat channel connection is arranged and into water one-way valve 3 (part that the unidirectional valve seat of water inlet can be regarded as the front end housing of separately making) is housed, in the front end housing 5 water storage cavity is arranged, it has intake pipe to connect water tank outward, water outlet leads to the into unidirectional valve base channel of water, has water outlet on the plunger case back cavity and connects L shaped water output connector 8 (see figure 2)s; Plunger 2 is made up of plunger post 21, plunger glue 22, plunger post front end has axial bore, the stage casing, hole has transverse holes and is communicated with outside the post, connection one-way valve 23 from the ante-chamber to the back cavity is housed in the hole, the axial bore leading portion has internal thread, and the plunger glue of ring-type is fastened on plunger post front end by plunger nut 24, has axial hole in the plunger nut, so the plunger case front/back cavity is communicated with, and then can not otherwise water can flow to back cavity from ante-chamber.

When plunger moves ahead, the water inlet one-way valve of unidirectional valve seat of intaking is closed under the effect of hydraulic pressure and Returnning spring, being communicated with one-way valve is then backed down logical by hydraulic pressure, water in the ante-chamber is forced into the plunger case back cavity that forms between plunger post and the plunger case through plunger nut mesopore, plunger post axial bore, transverse holes, reason owing to plunger rod, the volume that the compressed volume of plunger case ante-chamber increases greater than the plunger case back cavity, Gu Shui is pressed from the plunger case back cavity to spray through L shaped water output connector; When going behind the plunger, being communicated with one-way valve is closed, water in the plunger case back cavity is pressed equally from L shaped water output connector ejection, meanwhile the intake water inlet one-way valve opens of unidirectional valve seat, the instant water in front end housing inner storing water chamber replenishes and enters into the plunger case ante-chamber, so goes round and begins again, the pump housing has only single channel, to pack into, go out water one-way valve and realize two-way work doing, structure is simpler, and volume is little, in light weight, flow, pressure are big, can improve product competitive ability.

Claims

1, a kind of two-way work doing plunger pump that is applicable to sprayer, comprise plunger case (1) and plunger (2), before plunger case has, back cylinder cover (5,6), chamber before and after plunger is divided into plunger case, it is characterized in that: have water intake on described plunger case (1) ante-chamber, into water one-way valve (3) is housed, have water outlet on the plunger case back cavity, described plunger (2) is by plunger post (21), plunger glue (22) is formed, the plunger mucilage binding is at plunger post front end, the plunger post, before having connection plunger case in hole in the plunger glue, back cavity is equipped with the connection one-way valve (23) from the ante-chamber to the back cavity in the hole.

2, the two-way work doing plunger pump that is applicable to sprayer according to claim 1, it is characterized in that: the into unidirectional valve seat of water (4) is housed between described plunger case (1) and front end housing (5), channel connection is arranged and into water one-way valve (3) is housed before and after it, in the described front end housing water storage cavity is arranged, connect water tank, the unidirectional valve base channel of interior logical water inlet outward; Described plunger post (21) front end has axial bore, the stage casing, hole has transverse holes and is communicated with outside the post, is equipped with in the axial bore to be communicated with one-way valve (23), and the axial bore leading portion has internal thread, the plunger glue (22) of ring-type is fastened on plunger post front end by plunger nut (24), has axial hole in the plunger nut.