CN201625593U

CN201625593U - Liquid nozzle

Info

Publication number: CN201625593U
Application number: CN2009202844451U
Authority: CN
Inventors: 白琦珍; 曹云伟; 许黎明
Original assignee: YIXING HUADA WATER-TREATING EQUIPMENT Co Ltd
Current assignee: YIXING HUADA WATER-TREATING EQUIPMENT Co Ltd
Priority date: 2009-12-25
Filing date: 2009-12-25
Publication date: 2010-11-10
Anticipated expiration: 2019-12-25

Abstract

The utility model relates to a liquid nozzle, particularly to an improved liquid nozzle which utilizes the reclaimed water as water source and is characterized in that the liquid nozzle comprises a hollow nozzle casing, a water spraying core and a spring, wherein an opening and a connection thread are arranged at the front end and the rear end of the hollow nozzle casing respectively, the water spraying core is arranged inside the hollow nozzle casing and is capable of moving axially, the water spraying core is assembled by two or more flaps, the front end of the water spraying core is tapered, and the spring is sleeved outside the water spraying core loosely. Accordingly, the modified liquid nozzle achieves the purposes that the diameter of the nozzle hole is changed along with the change in water pressure, the nozzle hole is shrunk during the water spraying process in the normal water spray condition, and in case of blockage, the water spraying core retracts automatically under reduced water pressure to enlarge the nozzle hole, so that the blocked material in the nozzle hole is discharged through the enlarged nozzle hole, thereby achieving the self-cleaning effect, avoiding the rotary cleaning of the brush and greatly reducing the overhaul intensity of workers. Besides, a detachable structure is adopted between the water spraying core and the nozzle casing which are provided with a spring limit mechanism, thereby facilitating the overhaul or the dismounting operation. The elongated elliptic outlet can increase the width of the spray water stream, which is particularly applicable to, for example, clean the filter screen of the belt press with clear water-saving effect.

Description

Fluid injector

Technical field

Utility model is about the improvement to fluid injector, and relating in particular to a kind of is the water source nozzle to handle recycle-water, is the applicant formerly to be applied for a patent 00261834 further improvement, is specially adapted to the belt filter press filter screen and cleans usefulness.

Background technology

Because the growing tension of water resource, people use in some occasions and handle recycle-water, for example recycle-water after the more employing sewage disposal of belt filter press filter screen water for cleaning.Existing little water yield spray nozzle, its aperture are all fixing after manufacturing is finished, and can not change pore size in the use.Yet have some fine impurity in the processing recycle-water unavoidably, and be to save wash water, nozzle bore is generally all less, and the nozzle even particle diameter 1mm impurity still can result in blockage influences the cleaning to filter screen, and then influences the sludge press filtration effect.

Applicant's first to file patent again 00261834 disclosed belt filter press filter screen cleaning device rotates the cleaning brush bar though be provided with in cleaning sparge pipe, by artificial rotation cleaning brush bar shower nozzle is scrubbed the eliminating tamper.Yet because brush strip adoption stainless steel wire, the one, objectively fixing difficulty, easily cause part to come off after using the time, the 2nd, time long back steel wire distortion causes brush less than nozzle, the capital is caused the cleaning of part plug nozzle impurity undesirable, causes the permanent plugging of nozzle, makes and cleans unclean to filter screen, weak effect finally influences dehydrating effect.Unique for this reason way often has only and regularly nozzle is pulled down cleaning, increases to use trouble and labor strength.Secondly, contain fiber impurity in the recycle-water sometimes, easily cause and twine, thereby it is interior towards the Xian Shuitou resistance to have increased the rinse water pipeline, also can cause spray Cleaning for High Capacity not done to the greatest extent cleaning hairbrush.Besides, regularly manually change brush and clean, take place owing to anglec of rotation reason, cause part brush bar plug nozzle, changed, reduce the filter screen cleaning performance filter screen flushing water type through regular meeting.

Chinese patent 03221656.4 disclosed belt filter press strainer cleaning device, clean shower nozzle and adopt convex configuration, spray orifice is arranged on the convex surface highest point, and the shower nozzle convex surface inwardly is fixed on the water distribution straight tube, make spray orifice protrude the sparge pipe inner surface, clean to change to brush and easily it is cleaned.This nozzle arrangements only is to have improved to change the brush cleaning performance, but other shortcomings still exist, and for example still can produce spray nozzle clogging and change the flushing water type.

Therefore, is the nozzle at water source at present with the recycle-water, belt filter press filter screen washer jet for example, blockage problem has become long-standing, and above-mentioned deficiency still has is worth improved place.

The utility model content

The utility model purpose is to overcome the deficiency of above-mentioned prior art, and providing can be by changing hydraulic pressure, the fluid injector of removing automatically after a kind of spray nozzle clogging.

The utility model purpose realizes, the main improvement is that fixing water spray aperture is changed into, the hole for water spraying openings of sizes can change structure, thereby after making that hole for water spraying stops up, can enlarge by the water spray aperture, make and stop up the impurity discharge, make shower nozzle obtain block clearing, overcome above-mentioned the deficiencies in the prior art, realize the utility model purpose.Specifically, the utility model fluid injector comprises nozzle body and water spout, it is characterized in that nozzle body is the ducted body that there is connecting thread front end perforate, rear end, housing is built-in with axially movable water spray core, and the water spray core has two lobes or above amalgamation, front end tapered, and outer pine is with spring.

Combination water spray core, combination back cross sectional shape can be a polygon, also can be circular, can move axially a kind of employing cylindrical structure that is preferably flexibly for making the water spray core in housing.

Water spray core front end delivery port can be common circular hole, wherein a kind ofly is preferably rectangular ellipse, and this structure water outlet spray orifice can have the broad spray face, makes water spray elongated, for example sprays current and is 65 ° of angles.

Water spray core location prevents from the housing, can adopt the rear end limit method, jump ring for example is set stops, also can adopt two bodies (axial or horizontal) combination housing, and the core that prevents to spray water is deviate from.

The utility model fluid injector, with respect to prior art, because nozzle adopts the amalgamation structure, and can in housing, move axially, thereby can realize that nozzle bore can change the aperture according to variation in water pressure, the aperture is shunk and is normal water spray state during water spray, meets obstruction, reduces hydraulic pressure, the spray core retreats automatically, spray orifice opens expansion, and promptly the nozzle hole for water spraying can increase with hydraulic pressure and reduce (normal water spray), and nozzle bore increased gradually when hydraulic pressure reduced, make and be stuck in the nozzle bore tamper and discharge by enlarging the aperture, reach self-cleaning, and can omit and rotate the cleaning brush bar, greatly reduce the workman and operate maintenance intensity.With aperture, the 1mm left and right sides is example, and the reaming back aperture can reach 5mm (as required can also be bigger).In addition, be detachable structure between spray core and nozzle body, and adopt the jump ring position limiting structure, convenient maintenance or dismounting.Rectangular oval outlet can make water spray that big width is arranged, and is more suitable for helping saving water for cleaning in for example the belt filter press filter screen being cleaned.This nozzle also can be used for other similar applications and use recycle-water to do the spray and/or the cleaning at water source.

Optimize specific embodiment below in conjunction with one; utility model essence is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the total technical scheme of utility model is limited; some are In the view of the technical staff; the unsubstantiality that does not depart from the utility model design increases and/or change; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.

Description of drawings

Fig. 1 is a utility model nozzle sectional structure schematic diagram.

Fig. 2 is Fig. 1 right view.

The specific embodiment

Embodiment: referring to accompanying drawing, the utility model fluid injector, comprise the hollow ABS housing 4 that has outer connecting thread, the hollow housing front end is a shrouding with holes, there is annular groove in week in the rear end, two lobe amalgamations, the tapered circle water spray core 6 of front end are axially arranged in the housing, water spray core central shaft is to the water spray through hole, the water jet port of export is rectangular oval water jet, be with the loose sleeve spring 3 that can change spray core central through hole folding size outward, between spray core front and back and housing O-ring seals 2 and 5 arranged respectively, the bottom has stainless steel jump ring 1 to snap in the housing annular groove, stop fixing water spray core, prevent from.

Water spray work if normal hole is not stopped up, then puts on water spray core 6 water pressures relatively large (for example 0.3Mpa), makes spring 3 compressions, the reach of water spray core, and preceding end toper diminishes the perforate of involutory water spray core, realizes normally being the covering of the fan water spray; If the water spray core has impurity to stop up spray orifice in the hole, not water outlet of shower nozzle, then can be by reducing the pressure of spraying water, spring 3 is replied under elastic reaction naturally, reduce the pressure to the water spray core, move after the water spray in-core contracts, taper water spray core breaks away from the restriction of housing front opening and becomes big, make obstruction impurity obtain discharging, thereby reach automatic cleaning nozzle by amplifying through hole.

To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; those of ordinary skills will recognize also can adopt additive method; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; for example spray core and adopt the above combining structure of two lobes; the spacing jump ring in rear end changes other form retainings into; or the like unsubstantiality change, can be employed equally, can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.

Claims

1. fluid injector, comprise nozzle body and water spout, it is characterized in that nozzle body is the ducted body that there is connecting thread front end perforate, rear end, housing is built-in with axially movable water spray core, the water spray core has two lobes or above amalgamation, front end tapered, and outer pine is with spring.

2. according to the described fluid injector of claim 1, the core that it is characterized in that spraying water is limited in the housing by the rear end.

3. according to the described fluid injector of claim 2, it is characterized in that the rear end is spacing to stop for jump ring.

4. according to the described fluid injector of claim 1, the core that it is characterized in that spraying water is made up of two lobes.

5. according to claim 1 or 4 described fluid injectors, the core cross section that it is characterized in that spraying water is for circular.

6. according to the described fluid injector of claim 1, the core front end delivery port that it is characterized in that spraying water is rectangular ellipse.