CN202972041U

CN202972041U - Throttle check valve structure

Info

Publication number: CN202972041U
Application number: CN 201220596188
Authority: CN
Inventors: 吴晓峰
Original assignee: Xiamen Runner Industrial Corp
Current assignee: Xiamen Runner Industrial Corp; Runner Xiamen Corp
Priority date: 2012-11-13
Filing date: 2012-11-13
Publication date: 2013-06-05
Anticipated expiration: 2022-11-13

Abstract

The utility model discloses a throttle check valve structure which is installed in a water channel. The throttle check valve structure comprises a valve body, a non-return structure and a current limiting structure, wherein the non-return structure and the current limiting structure are assembled on the valve body; the valve body is composed of an upper part and a lower part, an inner cavity is formed in the middle part of the valve body, both ends are respectively a water inlet end and a water outlet end which are communicated with the inner cavity, and through holes are formed in the water inlet end and the water outlet end; the non-return structure is installed in the inner cavity of the valve body and composed of a floating plug and a spring which are matched, wherein one end of the floating plug is a non-return end, and the floating plug is moved back and forth in the inner cavity under the influence of water pressure difference between the water inlet end and the water outlet end, so that the non-return end is communicated, or the water inlet end of the valve body is sealed; and the current limiting structure is an elastic piece arranged on the through hole in the water inlet end or a rubber piece arranged on the floating plug. Therefore, the throttle check valve structure has the advantages of non return, throttling and compact structure, the installation process is simplified, and the working efficiency is increased.

Description

A kind of throttling check valve structure

Technical field

The utility model belongs to the sanitaryware accessory, refers to a kind of throttling check valve that is arranged in the drip irrigator water channel, with its structurally associated.

Background technique

with protection of the environment, energy-saving and emission-reduction, saving water resource is target, various water conserving taps in response to and give birth to, as inductive tap or time-lapse faucet, control flow, water-saving purpose to reach, but this type of leading internal structure is more complicated, member is many, corresponding cost compare is high, and more not convenient concerning the user of the long-time water of need, also have plenty of and on the water channel of the water intake of tap or water outlet, current-limiting apparatus is set and realizes step-down, the purpose of current limliting, at present general current-limiting apparatus only has the effect of current limliting usually, if need to prevent because of negative pressure generation siphon backflow phenomenon, one backstop that prevents the water outlet aqueous reflux must be installed on the water outlet of tap separately, must load onto simultaneously current-limiting apparatus and backstop in the tap like this, fabricating cost is higher, and install difficult, this case is not enough and continuous Improvement for this, develop eventually a kind of throttling check valve with current limliting and non-return anti-backflow effect, this case produces thus.

The model utility content

The utility model provides a kind of throttling check valve structure, and it is simple in structure, can be arranged in the water channel of drip irrigator or flexible pipe, with current limliting and non-return effect.

For reaching above-mentioned purpose, technical solution of the present utility model: a kind of throttling check valve structure, be installed in water channel, it is characterized in that: include valve body, and be mounted on valve body in order to the non-return structure that prevents aqueous reflux and control the flow restriction of water flow; Described valve body is that up and down two-part form, the middle part forms inner chamber, two ends are respectively feed-water end and the waterexit ends that communicates with inner chamber, be equipped with through hole on feed-water end and waterexit end, described non-return structure is arranged in the inner chamber of valve body, and this non-return structure is by unsteady stopper and spring mix proportion, and an end of the stopper that floats is made as water-stopping end, the stopper that should float is moved forward and backward in inner chamber by the impact of differential water pressures between feed-water end and waterexit end, makes the feed-water end of its water-stopping end conducting or draught excluder body; Described flow restriction is to be arranged on the shell fragment on the feed-water end through hole or to be arranged on sheet rubber on the stopper that floats.

This flow restriction is the shell fragment that is arranged on the through hole of feed-water end, and shell fragment one end is fixed on a side of through hole, and the other end is free end, forms an angle between this shell fragment and feed-water end through hole.

This shell fragment adopts a kind of plastics or metallic material of flexible power to make.

This flow restriction is the sheet rubber that is arranged on the stopper that floats, but this sheet rubber has the alar part that elasticity is launched.

This valve body inner chamber and feed-water end joining place form necking down.

Convex with the guiding rib that coordinates the stopper that floats on the sidewall of described valve body inner chamber.

Described valve body can be single hole or be comprised of several apertures into and out of the through hole on water end (W.E.).

Adopt said structure, the utility model utilizes the non-return structure on valve body can prevent external water refluence polluted source after closing the water route, utilize simultaneously the flow restriction on valve body to realize the step-down throttling, so make the utility model with effect non-return, throttling, more compact structure, simplify and make and installation procedure, and then improved working efficiency.

Description of drawings

Fig. 1 is the utility model the first embodiment's STRUCTURE DECOMPOSITION figure;

Fig. 2 is the schematic diagram that the utility model first embodiment's combination is implemented on tap;

Fig. 3 is the utility model the first embodiment's enforcement state one;

Fig. 4 is the utility model the first embodiment's enforcement state two;

Fig. 5 is the utility model the first embodiment's enforcement state three;

Fig. 6 is the utility model the second embodiment's STRUCTURE DECOMPOSITION figure;

Fig. 7 is the structural representation of the utility model second embodiment's valve body;

Fig. 8 is the schematic diagram that the utility model second embodiment's combination is implemented on tap;

Fig. 9 is the utility model the second embodiment's enforcement state one;

Figure 10 is the utility model the second embodiment's enforcement state two;

Figure 11 is the utility model the second embodiment's enforcement state three;

Figure 12,12A are that throttling check valve of the present utility model is installed the schematic diagram that is implemented on hand shower;

Figure 13,13A are that throttling check valve of the present utility model is installed the schematic diagram that is implemented on flexible pipe.

Embodiment

Below in conjunction with drawings and the specific embodiments, the utility model is elaborated.

Throttling check valve 10 of the present utility model is implemented on take installation in a kind of water channel of pulling out leading and is example, preferably be arranged near in the water channel of leading water inlet, include valve body 1, and be mounted on valve body 1 in order to the non-return structure 2 that prevents aqueous reflux and the flow restriction 3 of controlling water flow.

The first embodiment of the present utility model, as extremely shown in Figure 5 in Fig. 1, valve body 1 is welded by high frequency for up and down two-part, the middle part forms an inner chamber 11, two ends are respectively feed-water end 12 and the waterexit ends 13 that communicates with inner chamber 11, be equipped with through hole 14 on this feed-water end 12 and waterexit end 13, this through hole 14 can be single hole or be comprised of several apertures, and this inner chamber 11 forms necking downs 111 with feed-water end 12 joining places;

described non-return structure 2 is by unsteady stopper 21 and spring 22 mix proportions, be arranged in the inner chamber 11 of valve body 1, form with feed-water end 12 and coordinate to prevent that water from flowing backwards, the stopper 21 that should float forms the water-stopping end 211 of coupling necking down 111 sizes towards an end of feed-water end 12, the two ends of spring 22 are resisted against respectively the other end of valve body internal chamber wall and unsteady stopper 21, all the time the active force of stopper 21 1 towards feed-water end 12 directions floats, the stopper 21 that should float is moved forward and backward in inner chamber 11 by the impact of 13 differential water pressures of feed-water end 12 and waterexit end, impel its water-stopping end 211 to coordinate with the necking down 111 of inner chamber with conducting or sealing feed-water end 12,

Described flow restriction 3 is on the through hole 14 that is arranged on feed-water end 12 and the shell fragment 31 of corresponding through hole 14 shapes and size, this shell fragment can adopt a kind ofly has the plastics of certain elastic force or the material of metal is made, shell fragment 31 1 ends are fixed end, be fixed on a side of through hole 14, the other end is free end, and 14 of these shell fragment 31 original states and feed-water end through holes form an angle.In use, when tap is closed (as shown in Figure 3), feed-water end 12 does not have current to pass through, the stopper 21 that floats this moment is in the rear end of inner chamber 11 under the holding of spring 22, its water-stopping end 211 stretches in necking down 111 with sealing feed-water end 12, can prevent that so external water from 13 flowing backwards and enter leading internal contamination water source from the waterexit end; After tap is opened, shown in Figure 4, under normality, water enters by the water port 14 on feed-water end 12, the stopper 21 that floats this moment moves at the front end of Water Pressure lower compression spring 22 to inner chamber 11, its water-stopping end 211 shifts out necking down 111, open feed-water end 12, water is flowed out by the water port 14 of waterexit end 13 after entering inner chamber, and tap is normal water outlet; (coordinate shown in Figure 5) when water feeding pressure is excessive, this shell fragment 31 under the impact of hydraulic pressure around fixed end to through hole 14 beats, dwindle the angle of 14 of shell fragment 31 and feed-water end through holes, so can reduce current by the specific discharge of feed-water end through hole 14, reached the purpose of step-down throttling.

The second embodiment of the present utility model, as extremely shown in Figure 11 in Fig. 6, different from above-mentioned the first embodiment is: this flow restriction 3 is for being arranged on sheet rubber 32 on the stopper 21 that floats, this sheet rubber 32 can be one-body molded at the front end of stopper 21 that floats, physical property with elastically deformable, but this sheet rubber 32 has the alar part 321 that elasticity is launched, in addition, for the stopper 21 that floats is steadily moved, convex with guiding rib bar 112(on the sidewall of the inner chamber 11 of valve body shown in Figure 7).During the present embodiment uses, when tap is closed (shown in Figure 9), feed-water end 12 does not have current to pass through, the stopper 21 that floats this moment is in the rear end of inner chamber 11 under the holding of spring 22, its water-stopping end 211 stretches in necking down 111 with sealing feed-water end 12, can prevent that so external water from 13 flowing backwards and enter leading internal contamination water source from the waterexit end; After tap is opened, as shown in Figure 10, under normality, water enters by the water port 14 on feed-water end 12, the stopper 21 that floats this moment moves at the front end of Water Pressure lower compression spring 22 to inner chamber 11, its water-stopping end 211 shifts out necking down 111, open feed-water end 12, water is flowed out by the through hole 14 on waterexit end 13 after entering inner chamber, and tap is normal water outlet; When water feeding pressure is excessive, shown in Figure 11, be somebody's turn to do the alar part 321 outwards elasticity expansion under the impact of hydraulic pressure on the stopper front end sheet rubber 32 that floats, dwindled the gap between unsteady stopper and valve body inner chamber, reduce current by the specific discharge of through hole 14 on waterexit end 13, realize the purpose of step-down throttling.

By as seen above-mentioned, the utility model utilizes the non-return structure on valve body can prevent after closing the water route that external water from flowing backwards and enters leading internal contamination water source, utilize simultaneously the flow restriction on valve body to realize the step-down throttling, make the utility model with effect non-return, throttling, more compact structure, and simplify installation procedure, increase work efficiency.

Except the above preferred embodiment, also can be arranged on various drip irrigators or link when throttling check valve of the present utility model is specifically implemented, as shown in Figure 12,12A, throttling check valve of the present utility model is arranged on hand shower, and for example shown in Figure 13,13A, throttling check valve of the present utility model is arranged on the flexible pipe that connects the water route, and same attainable cost model utility is non-return, the effect of throttling.

The above is to the utility model description, is not to limit the scope that the utility model is implemented, and variation or the modification in every case done according to claim of the present utility model and specification are within all should belonging to the scope that the utility model patent contains.

Claims

1. a throttling check valve structure, be installed in water channel, it is characterized in that: include valve body, and be mounted on valve body in order to the non-return structure that prevents aqueous reflux and control the flow restriction of water flow; Described valve body is that up and down two-part form, the middle part forms inner chamber, two ends are respectively feed-water end and the waterexit ends that communicates with inner chamber, be equipped with through hole on feed-water end and waterexit end, described non-return structure is arranged in the inner chamber of valve body, and this non-return structure is by unsteady stopper and spring mix proportion, and an end of the stopper that floats is made as water-stopping end, the stopper that should float is moved forward and backward in inner chamber by the impact of differential water pressures between feed-water end and waterexit end, makes the feed-water end of its water-stopping end conducting or draught excluder body; Described flow restriction is to be arranged on the shell fragment on the feed-water end through hole or to be arranged on sheet rubber on the stopper that floats.

2. a kind of throttling check valve structure as claimed in claim 1, it is characterized in that: this flow restriction is the shell fragment that is arranged on the through hole of feed-water end, shell fragment one end is fixed on a side of through hole, and the other end is free end, forms an angle between this shell fragment and feed-water end through hole.

3. a kind of throttling check valve structure as claimed in claim 1 is characterized in that: this shell fragment adopts a kind of plastics or metallic material of flexible power to make.

4. a kind of throttling check valve structure as claimed in claim 1 is characterized in that: this flow restriction is the sheet rubber that is arranged on the stopper that floats, but this sheet rubber has the alar part that elasticity is launched.

5. a kind of throttling check valve structure as claimed in claim 1, is characterized in that: this valve body inner chamber and feed-water end joining place formation necking down.

6. a kind of throttling check valve structure as claimed in claim 1, is characterized in that: convex with the guiding rib that coordinates the stopper that floats on the sidewall of described valve body inner chamber.

7. a kind of throttling check valve structure as claimed in claim 1, it is characterized in that: described valve body can be single hole or be comprised of several apertures into and out of the through hole on water end (W.E.).