CN200968425Y

CN200968425Y - Water purifier back valve

Info

Publication number: CN200968425Y
Application number: CN 200620108897
Authority: CN
Inventors: 林建立
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-25
Filing date: 2006-10-25
Publication date: 2007-10-31
Anticipated expiration: 2016-10-25

Abstract

A novel check valve of a water purifier pertains to an accessory of the water purifier. The check valve of the prior art has the disadvantages of that the spare parts are many and the structure is complicated. The utility model comprises a floater and a firming cover. The floater has a floating body and a spool; the spool protrudes from the top surface of the floating body. The utility model is characterized in that the top of the firming cover is provided with a spool through hole; the floater is arranged in the firming cover; and the spool corresponds to the spool through hole. The utility model realizes the same function of the prior art with less part and has the advantages of that the structure is simple; the use is convenient, which is applied to the water purifier to simplify the manufacturing process and reduce the manufacturing cost and improve the dependability.

Description

The new water purifier safety check

[affiliated technical field]

The utility model belongs to a kind of water purifier accessory, is a kind of new water purifier safety check.

[background technique]

The non-return principle of water purifier generally is to utilize water buoyancy, and when the water that adds reached certain level height, spool floats gradually along with the rising of the water surface blocked water outlet, and current are ended, and reaches to prevent the purpose of overflowing.

A lot of in the market special water purifier for drinking machine in use, all must the smart seat on the drinking machine be removed, just can install and use, for the drinking machine that can not remove smart seat, water purifier can't use at all, and buoyancy aid is floating askew in cavity easily, influence the proper functioning of safety check, defective at above-mentioned prior art, a kind of water purifier safety check patent (patent No. is ZL02216609.2) that I have to its in addition solution, it is poor that it has overcome versatility preferably, the easily floating askew shortcoming that influences proper functioning of buoyancy aid, but its complex structure, and the sphere of activities of buoyancy aid in firm cover do not have lower limit, the retaining of therefore working as the safety check downside is more after a little while, the buoyancy aid excessive convergence, cause sealing plug to detach the mouth of a river and be difficult to reset, after this situation often appears at and for the first time water purifier placed on the drinking machine (this moment drinking machine in no retaining) and cuts off the water supply, make troubles to use.

[summary of the invention]

Problem to be solved in the utility model is to overcome above-mentioned prior art complex structure, and is further overcoming the defective that lacks the restriction of row space under the buoyancy aid on this basis, and the utility model is by the following technical solutions for this reason:

The new water purifier safety check, comprise float and firm cover, described float has buoyancy aid and spool, spool protrudes from the end face of buoyancy aid, it is characterized in that described firm cover top has valve core through hole, described float places in this firm enclosure, and described spool is corresponding with described valve core through hole.Prior art this programme has omitted parts such as water outlet nut, water outlet flap, back-up ring, buoyancy aid cap relatively, has optimized structure.

Described buoyancy aid is the hollow staving of the no end, and its upper end is provided with a valve core case, and this valve core case is generally formed by the extension of buoyancy aid one, and described spool is connected on the above-mentioned valve core case.Described buoyancy aid also can be made solid body, as long as selected materials density is less than the density of water.

Be formed centrally inner fovea part in the described valve core case, described spool is inserted this inner fovea part, and the inner fovea part bottom has the pore that partly communicates with described float hollow, and described spool generally uses rubber elastomeric material material.

Described firm cover lower end is connected with a bounding means, and this bounding means lower end is provided with interior flanging, and the inboard of interior flanging forms the backwater through hole, offers a plurality of water outlet through holes on the above-mentioned interior flanging.Described bounding means makes described float can be contained in the described firm cover, is unlikely in firm cover to come off when water purifier is anhydrous, has guaranteed that the corresponding relation of spool and valve core through hole is not destroyed.

Be provided with a guide ring around the described valve core through hole, this guide ring and described valve core case are complementary, and the guide ring inwall has a plurality of water grooves down.Described guide ring plays further firm effect to described buoyancy aid, prevents that it is floating askew, and that buoyancy aid water in the process of come-up can be continued is descending for the following water groove of guide ring inwall simultaneously, till buoyancy aid rises to spool and blocks described valve core through hole.

Described spool top is conical, makes that spool is easier to enter in the described valve core through hole.

Described firm cover side has a plurality of exhaust ports, is used to discharge air in the safety check, balance inner air and outer air pressure.

The end face of described firm cover extends the ring limit of diameter greater than its outer diameter laterally, and the edge on this ring limit is arranged to stepped, is convenient to link into an integrated entity with water-purifying tank.

Described buoyancy aid, firmly the cover and except that circle, can also make polygonal.

The beneficial effects of the utility model are: realized the prior art identical functions with less part, simplified overall structure, thereby simplified manufacturing process, reduced manufacture cost, and the bounding means that connects in firm cover lower end makes described float can be contained in the described firm cover, is unlikely to come off in firm cover when water purifier is anhydrous, has guaranteed that the corresponding relation of spool and valve core through hole is not destroyed, the convenient use improved reliability.

[description of drawings]

Fig. 1 is new water purifier safety check embodiment 1 an assembling schematic representation;

Fig. 2 is guide ring worm's eye view (Fig. 1 relatively);

Fig. 3 is new water purifier safety check embodiment 2 an assembling schematic representation;

Fig. 4 is the bounding means worm's eye view (Fig. 1 or Fig. 2 relatively) of new water purifier safety check;

Fig. 5 is a new water purifier safety check working state structure schematic representation;

Fig. 6 is the another kind of working state structure schematic representation of new water purifier safety check.

Among the figure: 1 is buoyancy aid; 2 is spool; 3 is firm cover; 4 is bounding means; 5 is valve core case; 6 is valve core through hole; 7 is the backwater through hole; 8 are the water outlet through hole; 9 is pore; 10 is guide ring; 11 are following water groove; 12 is exhaust port; 13 are the ring limit.

[embodiment]

Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail:

Embodiment 1: the new water purifier safety check, comprise buoyancy aid 1, spool 2, firmly cover 3 and bounding means 4, described buoyancy aid 1 is the staving of the hollow of the no end, its top is provided with valve core case 5, be formed centrally inner fovea part in this valve core case 5, this inner fovea part bottom has a plurality of pores 9 that communicate with described buoyancy aid 1 hollow space, described spool 2 is made by the rubber elastomeric material, and closely cooperate and insert in the inner fovea part of above-mentioned valve core case 5, when spool 2 is inserted, the air of female parts is discharged by described pore 9, is beneficial to inserting smoothly of spool 2; Described firm cover 3 tops have valve core through hole 6, are used to into water, and its side has a plurality of exhaust ports 12, is used for exhaust, make inner and outer air pressure keep balance, and this firmly covers 3 and is placed on the described buoyancy aid 1; Be provided with guide ring 10 around described valve core through hole 6, these guide ring 10 inwalls offer down water groove 11, and above-mentioned valve core through hole 6 positions are corresponding with the spool 2 on the described valve core case 5, and described valve core case 5 is inserted in the above-mentioned guide ring 10 simultaneously; Described bounding means 4 lower ends are provided with interior flanging, and the inboard of interior flanging forms backwater through hole 7, offer a plurality of water outlet through holes 8 on the above-mentioned interior flanging or on the sidewall of bounding means 4, and this bounding means 4 is connected with described firm cover 3.

This new water purifier safety check working procedure is specifically: current enter the guide ring 10 from valve core through hole 6, by the gap between 11 described firm covers 3 of inflow of the following water groove on guide ring 10 inwalls and the described buoyancy aid 1, then enter water purifier inside by water outlet through hole 8 downwards, thereby make the water surface lifting gradually of bounding means 4 belows, until covering bounding means 4 residing height, cause buoyancy aid 1 in the firm cover 3 under the effect of buoyancy of water with water surface lifting simultaneously, the spool 2 at buoyancy aid 1 top and valve core case 5 are drawn close to described valve core through hole 6 under the guiding of described guide ring, final buoyancy aid 1 drives spool 2 and rises in the described valve core through hole 6, thereby valve core through hole 6 is blocked, block current, reached the purpose (referring to Fig. 5) of non-return; When drawdown, float descends, but is subjected to the spacing of bounding means 4, and spool 2 can not deviate from outside the guide ring 10, thereby can guarantee the corresponding relation (referring to Fig. 6) of spool 2 and valve core through hole 6.

Embodiment 2: the new water purifier safety check, and described valve core case 5 cancellation center female parts and described pores 9, described spool 2 directly is bonded on the described valve core case 5, and other structures are described consistent with embodiment 1.

The water purifier safety check that every employing the utility model design is made is all in the scope of the technical program.

Claims

1. new water purifier safety check, comprise float and firm cover (3), described float has buoyancy aid and spool, spool protrudes from the end face of buoyancy aid, it is characterized in that described firm cover (3) top has valve core through hole (6), described float places in this firm cover (3) cover, and described spool is corresponding with described valve core through hole.

2. new water purifier safety check according to claim 1 is characterized in that described buoyancy aid (1) is the hollow staving of the no end, and its upper end is provided with a valve core case (5), and described spool (2) is connected on the above-mentioned valve core case (5).

3. new water purifier safety check according to claim 1, it is characterized in that described buoyancy aid (1) is the hollow staving of the no end, its upper end is provided with a valve core case (5), this valve core case is formed centrally inner fovea part in (5), described spool (2) is inserted this inner fovea part, and the inner fovea part bottom has the pore (9) that communicates with described buoyancy aid (1) hollow space.

4. new water purifier safety check according to claim 1, it is characterized in that described firm cover (3) lower end is connected with a bounding means (4), this bounding means (4) lower end is provided with interior flanging, the inboard of interior flanging forms backwater through hole (7), offers a plurality of water outlet through holes (8) on the above-mentioned interior flanging.

5. according to the described new water purifier safety check of 1 to 4 arbitrary claim, it is characterized in that described firm cover (3) is provided with one and is positioned at valve core through hole (6) guide ring (10) on every side, this guide ring (10) is complementary with described valve core case (5), and guide ring (10) inwall has a plurality of water grooves (11) down.

6. according to claim 1,2 or 3 described new water purifier safety check, it is characterized in that described spool (2) top is for conical.

7. new water purifier safety check according to claim 1 is characterized in that described firm cover (3) sidewall has a plurality of exhaust ports (12).

8. new water purifier safety check according to claim 1 is characterized in that the end face of described firm cover extends the ring limit (13) of diameter greater than its outer diameter laterally, and the edge on this ring limit (13) is arranged to stepped.