CN201420884Y

CN201420884Y - Flow regulating check valve

Info

Publication number: CN201420884Y
Application number: CN2009201378498U
Authority: CN
Inventors: 刘城荣
Original assignee: Xiamen Runner Industrial Corp
Current assignee: Xiamen Runner Industrial Corp
Priority date: 2009-04-20
Filing date: 2009-04-20
Publication date: 2010-03-10
Anticipated expiration: 2019-04-20

Abstract

The utility model discloses a flow regulating check valve which comprises a sleeve, a current-limiting device and a one-way valve, wherein the one-way valve is hermetically arranged at the water outlet end of the sleeve; the current-limiting device is arranged at the water inlet end of the sleeve and comprises a water saver support and a water saver sleeved in the water saver support; and the water saver is made of soft materials and generates the deformation with water pressure so as to block a water supply hole of the water saver support. The current-limiting device and the one-way valve areintegrated into a whole by utilizing the sleeve of the flow regulating check valve; when being used in a water outlet device, the flow regulating check valve not only has the water-saving and current-limiting functions but also has the countercurrent prevention function, that is, under the negative pressure condition, remaining water in the water outlet device cannot flow back to pollute water sources, so as to ensure the health of the water sources; in addition, the current-limiting device blocks the water supply hole of the water saver support due to the deformation of the water saver so asto perform the function of controlling flow. Therefore, the utility model has the characteristic of simple and compact structure.

Description

The Flow-rate adjustment check valve

Technical field

The utility model relates to the parts in a kind of shower set, refer to especially a kind of be applicable to various water outlet devices with reach control water-outlet quantity the Flow-rate adjustment check valve.

Background technique

It is the major issue that the whole world is paid close attention to that water resources lacks, and using water wisely is the environmental protection problem that needs promotion in daily life.In some public places, people always open current very big for making things convenient for water, in fact so big current also only have the flowing water about 20% to play cleaning function, other about 80% water is wasted, thereby for reaching water-saving purpose, the current-limiting apparatus of forcing water saving need be set; In addition, some water outlet devices as gondola water faucet, after shower finishes, are closed Water supply switch valve, can have Yu Shui in the gondola water faucet, be plugged on the gondola water faucet fixed base after, the phenomenon that gondola water faucet also can occur dripping for a long time, ground can't in time be cleaned out; Even when next shower, take off gondola water faucet and change gondola water faucet head angle up, when unlatching water supply is not opened, still can flow out some remaining cold water in the gondola water faucet.If the untimely emptying of surplus water that this is remaining, this surplus water can go bad after a period of time, when supply channel generation negative pressure condition, Yu Shuihui in the gondola water faucet flows backward in the watering, rotten water may flow in other pipeline and pollute, as the potable water pipeline, therefore can there be unhygienic, unsound hidden danger.

The model utility content

The purpose of this utility model provides a kind of Flow-rate adjustment check valve that water-outlet quantity has the non-return function of anti-backflow simultaneously of can realizing controlling.

For achieving the above object, solution of the present utility model is:

A kind of Flow-rate adjustment check valve, it comprises a sleeve, a current-limiting apparatus and an one-way valve, one-way valve is the waterexit end that places sleeve of sealing, and current-limiting apparatus is arranged on the feed-water end of sleeve; Wherein current-limiting apparatus comprises a water-saving plate rack and is placed on water-saving sheet in the water-saving plate rack, and this water-saving sheet is a soft materials, and it produces deformation with hydraulic pressure the water port of water-saving plate rack is stopped.

Described sleeve outer rim is provided with the caulking groove of setting seal ring, and this sleeve is nested with the water inlet that is embedded at water outlet device of seal ring sealing; This barrel bore forms two sections ladder inner chambers of size by feed-water end to the waterexit end, the step that in the waterexit end of sleeve forms, contracts, and the feed-water end inner edge of sleeve is provided with a protruding wall.

Described water-saving plate rack is a block set, and its external diameter is smaller or equal to the internal diameter of the big inner chamber of sleeve, and greater than the internal diameter that the protruding wall of sleeve forms, height forms the distance at step place to two sections inner chambers of sleeve smaller or equal to the lower end of the protruding wall of sleeve; The middle part of this water-saving plate rack be equipped with a plurality of from the bottom surface upwardly extending dog, the upper end of each dog is expanded to extension, is distributed with in addition a plurality of water inlets on the bottom surface of each dog outside.

Vertically be distributed with convex tendon on the described water-saving plate rack inwall.

Described one-way valve comprises a valve body, a spool, a spring and a valve gap; The external diameter of valve body is smaller or equal to the internal diameter of the little inner chamber of above-mentioned sleeve, and necking down is formed at the top of valve body; Spool top is nested with Sealing and necking down formation is sealed and matched, and the bottom is nested with spring; Be distributed with osculum on the valve gap; Spool is nested with Sealing and spring places valve body successively, after being consolidated by valve gap and valve body button, makes the be limited in valve body of poppet shaft to activity.

After adopting such scheme, the utility model utilizes a sleeve with current-limiting apparatus and one-way valve set all-in-one-piece structure, in the time of in being used in water outlet device, the function that not only has the water saving current limliting, the function that also has anti-adverse current, promptly under negative pressure state, the polluted source that can not flow backwards of the surplus water in the water outlet device is to guarantee the health at water source; In addition, current-limiting apparatus is to utilize the deformation of water-saving sheet to stop with the water port to the water-saving plate rack, reaches the function of control flow rate, and therefore order the utlity model has simple in structure, compact characteristics.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a three-dimensional combination figure of the present utility model;

Fig. 3 is assembled sectional view of the present utility model (a water flowing state);

Fig. 4 is assembled sectional view of the present utility model (a non-return state);

Fig. 5 is the schematic representation that the utility model is implemented on spray gun;

Fig. 6 is the schematic representation that the utility model is implemented on gondola water faucet.

Embodiment

As Fig. 1,2 and cooperate shown in Fig. 3,4, Flow-rate adjustment check valve of the present utility model, it is installed in the water outlet device, the water inlet of spray gun A as shown in Figure 5, or the water inlet of gondola water faucet B as shown in Figure 6.

This Flow-rate adjustment check valve comprises a sleeve 1, a current-limiting apparatus 2 and an one-way valve 3.

This sleeve 1 outer rim is provided with the caulking groove 11 of setting seal ring, and this sleeve 1 is nested with the water inlet that is embedded at water outlet device of seal ring sealing; This sleeve 1 inner chamber forms two sections ladder inner chambers 12,13 of size by feed-water end to the waterexit end, the step 131 that in the waterexit end of sleeve 1 forms, contracts, and the feed-water end inner edge of sleeve 1 is provided with a protruding wall 121.

This current-limiting apparatus 2 comprises a water-saving plate rack 21 and a water-saving sheet 22; Water-saving plate rack 21 is a block set, and its external diameter is slightly larger than the internal diameter that above-mentioned protruding wall 121 forms smaller or equal to the internal diameter of sleeve 1 big inner chamber 12, and height is smaller or equal to the distance at lower end to step 14 places that 1 two sections inner chambers of sleeve 12,13 form of sleeve 1 protruding wall 121; The middle part of this water-saving plate rack 21 be equipped with a plurality of from the bottom surface 211 upwardly extending dogs 212, the upper end of each dog 212 is expanded to extension, on the bottom surface 211 of each dog 212 outside, be distributed with a plurality of water inlets 213 in addition, also on water-saving plate rack 21 inwalls, vertically be distributed with convex tendon 214.Water-saving sheet 22 is a soft collar, and it is each dog 212 outside that is placed on water-saving plate rack 21, can not come off from water-saving plate rack 21 by dog 212 upper limit.

One-way valve 3 comprises a valve body 31, a spool 32, a spring 33 and a valve gap 34; The external diameter of valve body 31 is smaller or equal to the internal diameter of above-mentioned sleeve 1 little inner chamber 13, and necking down 311 is formed at the top of valve body 31; Spool 32 tops are nested with Sealing and necking down 311 formation are sealed and matched, and the bottom is nested with spring 33; Be distributed with osculum 341 on the valve gap 34.Spool 32 is nested with Sealing and places valve body 31 successively with spring 33 bottom-up (combining diagram), by valve gap 34 and valve body 31 buttons solid after, make axially movable being limited in the valve body 31 of spool 32, form one-way valve 3 with this.

The utility model is in when combination, is earlier one-way valve 3 to be nested with behind the Sealing in the little inner chamber 13 that is embedded at sleeve 1 of the feed-water end sealing of sleeve 1, and its lower end is spacing by the interior step 131 that contracts, and the height of this little inner chamber 13 is greater than the height of one-way valve 3; Again current-limiting apparatus 2 is placed big inner chamber 12, just spacing by protruding wall 121, prevent that it from deviating from from sleeve 1; Can add one deck filter screen 4 again in the upper end of current-limiting apparatus 2 in addition.

In conjunction with Fig. 5,6, the utility model outer rim is overlapped the sealable water inlet of being fixed in water outlet device of Sealing again.

As shown in Figure 4, the utility model when normality, the stretched condition that is in the normal state of the spring 33 in the one-way valve 3, then promoting spool 32 is necking down 311 places that are resisted against valve body 31, makes the water route be in blocking state; And the water-saving sheet 22 of current-limiting apparatus 2 also is in the normal state, and stops less to the water inlet 213 of the water-saving plate rack 21 of its underpart.

As shown in Figure 5, when water outlet device is opened Water supply switch valve, hydraulic pressure can overcome the elastic force of spring 33, then promotes spool 32 and breaks away from sealing relationship with valve body 31, and this moment, the water route was to be in open mode, and spring 33 is in the compress energy storage state; When water flow strengthens, hydraulic pressure can strengthen, the soft water-saving sheet 22 of current-limiting apparatus 2 can deformation become flat under hydraulic action, along with hydraulic pressure strengthens, the deformation of water-saving sheet 22 also can strengthen, then the water inlet 213 of 22 pairs of water-saving plate racks 21 of water-saving sheet stops increasing, makes the inflow of water outlet device reduce, and so just realizes the function of water saving current limliting.

When closing Water supply switch valve, the spring 33 of one-way valve 3 resets and makes spool 32 water route be blocked again, it should be noted that herein, this spool 32 has the function of the anti-adverse current of unidirectional conducting herein, promptly under negative pressure state, spool 32 is necking down 311 shutoff with valve body 31, thereby current can not flow backwards and prevent polluted source.

Certainly, the current-limiting apparatus in the utility model 2 also can be used as independent functional part with one-way valve 3 and uses.

Claims

1, a kind of Flow-rate adjustment check valve is characterized in that: comprise a sleeve, a current-limiting apparatus and an one-way valve, one-way valve is the waterexit end that places sleeve of sealing, and current-limiting apparatus is arranged on the feed-water end of sleeve; Wherein current-limiting apparatus comprises a water-saving plate rack and is placed on water-saving sheet in the water-saving plate rack, and this water-saving sheet is a soft materials, and it produces deformation with hydraulic pressure the water port of water-saving plate rack is stopped.

2, Flow-rate adjustment check valve as claimed in claim 1, it is characterized in that: the sleeve outer rim is provided with the caulking groove of setting seal ring, and this sleeve is nested with the water inlet that is embedded at water outlet device of seal ring sealing; This barrel bore forms two sections ladder inner chambers of size by feed-water end to the waterexit end, the step that in the waterexit end of sleeve forms, contracts, and the feed-water end inner edge of sleeve is provided with a protruding wall.

3, Flow-rate adjustment check valve as claimed in claim 1 or 2, it is characterized in that: the water-saving plate rack is a block set, its external diameter is smaller or equal to the internal diameter of the big inner chamber of sleeve, greater than the internal diameter that the protruding wall of sleeve forms, height forms the distance at step place to two sections inner chambers of sleeve smaller or equal to the lower end of the protruding wall of sleeve; The middle part of this water-saving plate rack be equipped with a plurality of from the bottom surface upwardly extending dog, the upper end of each dog is expanded to extension, is distributed with in addition a plurality of water inlets on the bottom surface of each dog outside.

4, Flow-rate adjustment check valve as claimed in claim 3 is characterized in that: vertically be distributed with convex tendon on the water-saving plate rack inwall.

5, Flow-rate adjustment check valve as claimed in claim 1 or 2 is characterized in that: one-way valve comprises a valve body, a spool, a spring and a valve gap; The external diameter of valve body is smaller or equal to the internal diameter of the little inner chamber of above-mentioned sleeve, and necking down is formed at the top of valve body; Spool top is nested with Sealing and necking down formation is sealed and matched, and the bottom is nested with spring; Be distributed with osculum on the valve gap; Spool is nested with Sealing and spring places valve body successively, after being consolidated by valve gap and valve body button, makes the be limited in valve body of poppet shaft to activity.