CN217272131U

CN217272131U - Check valve for faucet and faucet

Info

Publication number: CN217272131U
Application number: CN202121802227.XU
Authority: CN
Inventors: 沈克豹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-08-23
Anticipated expiration: 2031-08-04

Abstract

The utility model belongs to the technical field of the water valve, refer in particular to a check valve and tap for tap, the check valve includes the casing for tap, the casing internal fixation has the valve body, be formed with the inlet opening that is linked together between casing and the valve body, be equipped with the case through the switching of mobile control inlet opening in the valve body, the case is including the manger plate portion that can plug up inlet opening department to and stretch into the inserted bar in the valve body, the cover has the spring of supporting between manger plate portion and casing on the inserted bar, be formed with the inside apopore of intercommunication valve body on the casing. The check valve is arranged behind the faucet, and can effectively prevent water from flowing backwards and protect the water inlet end from being polluted.

Description

Check valve for faucet and faucet

Technical Field

The utility model belongs to the technical field of the water valve, a check valve and tap for tap are related to.

Background

The water faucet is a water control device which is visible everywhere in modern buildings, a plurality of water outlet devices such as a shower head, a faucet and a spray head are usually connected to the main body of some existing water faucets, impurities which can pollute tap water are usually attached to the water outlet devices in the long-term use process of the water faucets, when the water faucets are closed, the tap water which is not discharged in time is remained in the water outlet devices, the water pressure of the water outlet end is higher than that of the water inlet end, the phenomenon that the tap water in the water outlet devices and the water faucet flows back is likely to occur, and in the backflow process, the impurities attached to the water outlet devices can be brought into the water inlet end by the tap water, and the tap water is finally polluted. Therefore, the existing faucet should be added with a structure capable of preventing the backflow of tap water.

In view of the above problems, a check valve applicable to a faucet and a faucet capable of cooperating with the check valve to prevent backflow of tap water may be designed.

Disclosure of Invention

The utility model discloses according to above-mentioned problem provides a check valve and tap for tap, the check valve can avoid the running water backward flow effectively with tap's cooperation, plays the protection and intakes the end and does not receive the effect that receives the pollution.

The purpose of the utility model is realized like this:

the check valve for the faucet comprises a shell, wherein a valve body is fixed in the shell, a water inlet hole communicated with the shell is formed between the shell and the valve body, a valve core for controlling the opening and closing of the water inlet hole through movement is arranged in the valve body, the valve core comprises a water retaining part capable of blocking the water inlet hole and an insertion rod extending into the valve body, a spring abutting against the water retaining part and the shell is sleeved on the insertion rod, and a water outlet hole communicated with the interior of the valve body is formed in the shell.

Furthermore, the casing is including dismantling the adapter sleeve and the position sleeve of connection, the valve body stretches into the adapter sleeve, the position sleeve plug-in connect in the adapter sleeve to the lid in outside the valve body, the inlet port form in on the adapter sleeve.

Furthermore, a matching end surface is formed on the connecting sleeve, a screwing groove is formed in the matching end surface, and threads are formed on the side surface of the connecting sleeve.

Furthermore, a first sealing ring is sleeved on the connecting sleeve.

Furthermore, a sealing part which is abutted against the water inlet hole of the positioning sleeve is formed on the valve body, a second sealing ring which is abutted against the inner wall of the positioning sleeve is sleeved on the sealing part, and the water inlet hole is formed in the sealing part.

Furthermore, a limiting groove is formed on the inner side of the water inlet hole of the sealing part, and a third sealing ring which can be abutted against the limiting groove is sleeved on the water retaining part of the valve core.

Furthermore, a filter screen is covered at the water inlet.

A tap comprises a main body, wherein blocking walls for partitioning are formed in the main body, at least one mounting area is limited between the blocking walls, the check valve for the tap is arranged in each mounting area, water inlets with the same number as the mounting areas are formed in the main body, and each water inlet is communicated with one mounting area.

Furthermore, a water mixing area, a water dividing area and a water outlet area which can be communicated are limited between the blocking walls, at least one water mixing through hole which can be communicated with the installation area and the water mixing area is formed in the blocking wall between the installation area and the water mixing area, water outlet areas in the main body are provided, water dividing through holes which are equal to the water outlet areas in number are formed in the blocking wall between the water dividing area and the water outlet area, each water dividing through hole is communicated with the water dividing area and one water outlet area, a water outlet for connecting water outlet equipment is formed in the water outlet area, an installation hole for installing a switch element is formed in the main body, the switch elements on the installation hole are connected with water control valves for controlling the opening and closing of the water mixing through holes and the water dividing through holes, and the water control valves can be communicated with the water mixing area and the water dividing area.

Furthermore, a backflow area is limited between the blocking walls, the backflow area can be simultaneously communicated with the water mixing area and the water dividing area, a first backflow hole which can be communicated with the water dividing area and the backflow area is formed in the blocking wall between the water dividing area and the backflow area, and a second backflow through hole which can be communicated with the water mixing area and the backflow area is formed in the blocking wall between the water mixing area and the backflow area.

Compared with the prior art, the utility model has the advantages that:

1. the case of check valve just can remove when the pressure of the end of intaking is greater than the pressure of play water end to make water can pass through the check valve smoothly, and normally flow in tap, when tap closed, the pressure of the end of intaking reduces, and the inlet opening is plugged up to the case, has prevented effectively that tap and the aquatic installation normal water flow from getting into the end, has avoided the running water that intakes in the end to receive the pollution of backward flow water, has played the effect of protection water source.

2. The check valve has good leakproofness, can carry out the separation with water steadily when not logical water, avoids rivers to take place to leak when the check valve department.

3. Under the prerequisite of not flowing back to the end of intaking, certain backward flow can be carried out to tap in the in-process inside of going out water, avoids leading to the fact out water too fast because of water pressure is too big, and the backward flow of water can also play the effect of adjusting the temperature to the water in the mixed area simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a cross-sectional view of a check valve.

Fig. 2 is a perspective view of the check valve.

Fig. 3 is a schematic view showing the internal structure of the faucet.

Fig. 4 is a schematic diagram of the internal structure of the faucet.

Fig. 5 is a perspective view of the faucet.

1-shell, 11-water inlet, 111-filter screen, 12-water outlet, 13-connecting sleeve, 131-matching end face, 132-screwing groove, 14-locating sleeve, 15-first sealing ring, 2-valve body, 21-sealing part, 211-limiting groove, 22-second sealing ring, 23-guide sleeve, 3-valve core, 31-water retaining part, 32-inserted rod, 33-third sealing ring, 4-spring, 5-main body, 51-baffle wall, 511-water mixing through hole, 512-water distributing through hole, 513-first return hole, 514-second return through hole, 52-water inlet, 53-water outlet, 54-mounting hole, 6-mounting area, 7-water mixing area, 8-water distributing area, 9-water outlet zone and 10-reflux zone.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The invention will be further described in the following with reference to specific embodiments thereof,

as shown in fig. 1-2, a check valve for a faucet includes a housing 1, a valve body 2 is fixed in the housing 1, a water inlet 11 communicated with the housing 1 and the valve body 2 is formed between the housing 1 and the valve body 2, a valve core 3 for controlling the opening and closing of the water inlet 11 through movement is arranged in the valve body 2, the valve core 3 includes a water blocking portion 31 capable of blocking the water inlet 11 and an insertion rod 32 extending into the valve body, a spring 4 abutting against the water blocking portion 31 and the housing 1 is sleeved on the insertion rod 32, and a water outlet 12 communicated with the interior of the valve body 2 is formed on the housing 1. Specifically, the check valve is installed in the faucet, and when water flows into the faucet, the water can flow out through the check valve. The working process of the check valve is as follows: after the faucet is opened, water flows into the water inlet hole 11 on the shell 1 and then enters the water inlet hole 11 of the valve body 2, when the water pressure entering the water inlet hole 11 is greater than the pressure of the spring 4 in the valve body 2 against the water retaining part 31 of the valve core 3, the valve core 3 is pushed by the water flow and moves towards the inner side of the valve body 2, at the moment, the spring 4 is compressed, and the water flow normally flows into the faucet through the check valve; after the faucet is closed, the pressure applied to the water retaining part 31 of the valve core 3 is reduced, and the spring 4 begins to rebound, so that the water inlet hole 11 is blocked again by the water retaining part of the valve core 3, and at the moment, water remained in the faucet and the water outlet equipment cannot flow to the water inlet end through the check valve. Therefore, the water inlet end and the water source of the faucet provided with the check valve cannot be polluted by backflow water, and the effect of ensuring the cleanness of the water source is effectively achieved.

As shown in fig. 1, the housing 1 includes a connection sleeve 13 and a positioning sleeve 14 detachably connected, the valve body 2 extends into the connection sleeve 13, the positioning sleeve 14 is inserted into the connection sleeve 13 and covers the valve body 2, and the water inlet 11 is formed in the connection sleeve 13. Specifically, the valve body 2 can be installed in the faucet through the housing 1, and is fixed through the connection between the connecting sleeve 13 and the positioning sleeve 14. Water passes through in proper order when getting into the check valve get into behind the inlet opening 11 on position sleeve 14 and the valve body 2 is passing through follow behind the valve body 2 apopore 12 departments on the casing 1 flow out. The water outlet hole 12 may be formed at the side of the connection sleeve 13 and the positioning sleeve 14 so that water can smoothly enter the passage in the faucet after flowing out.

As a modified embodiment, the connecting sleeve 13 is formed with a matching end surface 131, the matching end surface 131 is provided with a screwing groove 132, and the side surface of the connecting sleeve 13 is formed with a thread. Specifically, the check valve is connected to the faucet through the threads on the connecting sleeve 13, and the check valve is integrally rotated by pushing the screwing groove 132 with a tool such as a screwdriver, so that the installation is realized, and the check valve is easy to disassemble, assemble and replace. The twisting groove 132 can be a straight groove, a cross groove and the like, and the corresponding effect can be achieved.

As a modified embodiment, the connecting sleeve 13 is sleeved with a first sealing ring 15. Specifically, when the check valve is installed in the faucet, the first sealing ring 15 abuts against the inner side of the faucet, so that the sealing performance of the check valve when the check valve is installed in the faucet is enhanced, and leakage in the faucet is avoided.

As an improved embodiment, a sealing portion 21 abutting against the water inlet 11 of the positioning sleeve 14 is formed on the valve body 2, a second sealing ring 22 abutting against the inner wall of the positioning sleeve 14 is sleeved on the sealing portion 21, and the water inlet 11 is formed on the sealing portion 21. Specifically, water flows through behind the inlet opening 11 of position sleeve 14 department, through form in inlet opening 11 on the sealing 21, sealing 21 supports the inlet opening 11 of position sleeve 14 avoids passing through inlet opening 11 gets into the water of casing 1 does not pass through the inside direct flow direction of valve body 2 apopore 12 ensures that water only gets into when getting into the check valve body 2, sealing washer 22 supports the inner wall of position sleeve 14, further strengthens sealing 21 is supporting in the leakproofness of time in the position sleeve 14 prevents to have the water to leak into the clearance between casing 1 and the valve body 2.

As a modified embodiment, a limiting groove 211 is formed inside the water inlet 12 of the sealing portion 21, and a third sealing ring 33 capable of abutting against the limiting groove 211 is sleeved on the water blocking portion 31 of the valve core 3. Specifically, when the pressure of the spring 4 on the water retaining portion 31 is greater than the water pressure at the water inlet 12, the water retaining portion 31 drives the third sealing ring 33 to abut against the limiting groove 211 to prevent water from entering the valve body 2, and the third sealing ring 33 can increase the sealing performance of the water retaining portion 31 during retaining water to prevent water from leaking into the valve body 2.

As a modified embodiment, the water inlet hole 11 is covered with a filter screen 111. Specifically, tap water is mostly sourced from rivers, so that some river sand is certainly generated in the water, the large-scale filtration of a tap water company cannot completely clean the sand, meanwhile, a series of impurities can be brought in the process of pipeline circulation of the tap water, and for the impurities, if the impurities cannot be effectively filtered, the tap water possibly influences the human health. Therefore, the check valve is additionally provided with the filter screen 111, the filter screen 111 can filter impurities in the water passing through the water inlet hole 11, and the water entering the water faucet through the check valve can be purer. The filter screen 111 can cover the water inlet 11 on the housing 1, and also can be installed in the housing 1, and cover the water inlet 11 of the valve body 2, so that the corresponding effect can be realized.

As shown in fig. 3, a guide sleeve 23 into which the insert rod 32 of the valve body 3 is inserted is provided in the valve body 2. Specifically, in the moving process of the valve core 3, the insertion rod 32 moves along the insertion hole of the guide sleeve 23, and the guide sleeve 23 effectively plays a role in guiding and positioning, so that the position of the valve core 3 is prevented from being deviated, and the stability of the check valve structure is improved.

As shown in fig. 3 to 5, a faucet comprises a main body 5, wherein blocking walls 51 for partitioning are formed in the main body 5, at least one mounting area 6 is defined between the blocking walls 51, the above-mentioned check valve for a faucet is arranged in each mounting area 6, the main body 5 is further provided with water inlets 52 with the same number as the mounting areas 6, and each water inlet 52 is communicated with one mounting area 6. Specifically, the check valve is installed in the installation area 6 of the faucet, and after water enters the main body 5 through the water inlet 52, the water passes through the check valve at the installation area 6 and then flows out from each water outlet device connected to the main body 5 after circulating in the main body 5. After the water passes through the check valve, the check valve can prevent the water from flowing back through it to the water inlet 52, thereby preventing the water inlet end from being contaminated by the backflow water. A plurality of the water inlets 52 may be disposed in the main body 2, for example, the water inlets may be divided into a cold water inlet and a hot water inlet

And an inlet, each of the water inlets 52 corresponds to one of the mounting regions 6 and a check valve, and water entering the main body 5 through each of the water inlets 52 can flow through the inside of the main body 5 and flow out therefrom only after passing through the check valve.

As shown in fig. 3-4, the blocking wall 51 defines the mixing region 7, the dividing region 8 and the outlet region 9 which can be communicated with each other, a water mixing through hole 511 which can communicate the installation area 6 with the water mixing area 7 is formed on the baffle wall 51 between the installation area 6 and the water mixing area 7, at least one water outlet area 9 is arranged in the main body 5, the blocking wall 51 between the water distribution area 8 and the water outlet area 9 is provided with water distribution through holes 512 with the same number as the water outlet area 9, each water distribution through hole 512 is communicated with the water distribution area 8 and one water outlet area 9, a water outlet 53 for connecting with water outlet equipment is formed in the water outlet region 9, a mounting hole 54 for mounting a switch element is formed in the main body 5, the switch elements on the mounting hole 54 are all connected with water control valves for controlling the opening and closing of the water mixing through hole 511 and the water dividing through hole 512, and the water control valves can communicate the water mixing region 7 and the water dividing region 8. Specifically, in the main body 5, after passing through the check valve, water flows out of the installation area 6 through the water mixing through hole 511, and is mixed after flowing into the water mixing area 7, for example, cold water and hot water can enter the main body through the different water inlets 52, and are mixed and subjected to temperature adjustment in the water mixing area 7, and then the mixed water enters the water dividing area 8 through adjustment of the water control valve, and after the water control valve opens the corresponding water dividing through hole 512, the mixed water flows into the corresponding water outlet area 9 through the water dividing through hole 512, and finally leaves the main body 5 after passing through the corresponding water outlet 53, and enters the corresponding water outlet device. The water outlet equipment connected to the main body 5 can be a shower head, a spray head, a water outlet faucet and the like, and the corresponding connection is carried out according to the number of the water outlet areas 9 and the water outlets 53.

As a modified example, a backflow zone 10 is defined between the blocking walls 51, the backflow zone 10 can simultaneously communicate the water mixing zone 7 with the water diversion zone 8, a first backflow hole 513 which can communicate the water diversion zone 8 with the backflow zone 10 is formed on the blocking wall 51 between the water diversion zone 8 and the backflow zone 10, and a second backflow through hole 513 which can communicate the water mixing zone 7 with the backflow zone 10 is formed on the blocking wall 51 between the water mixing zone 7 and the backflow zone 10. Specifically, during the process of flowing into the outlet zone 9, part of the mixed water in the diversion zone 8 flows into the return zone 10 after passing through the first return hole 513, and the water in the return zone 10 can flow into the mixing zone 7 again after passing through the second return hole 514, and flows into the diversion zone 8 again after being mixed again in the mixing zone 7. At tap's play water in-process, the backward flow of mixing water between distributive region 8, recirculation region 10 and the muddy water district 8 can reduce the pressure of play water in-process, avoids going out water too fast, the while backward flow extremely water in the muddy water district 8 can with follow the installing zone 6 gets into water in the mixed region 8 mixes again, gets into at the hot and cold water under the condition that mixed region 8 mixes, the hydroenergy after the backward flow can play the effect that adjusts the temperature to mixing water.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A check valve for a faucet comprises a shell, wherein a valve body is fixed in the shell, and a water inlet communicated with the shell is formed between the shell and the valve body.

2. The check valve for the faucet as recited in claim 1, wherein the housing includes a connecting sleeve and a positioning sleeve detachably connected to each other, the valve body extends into the connecting sleeve, the positioning sleeve is inserted into the connecting sleeve and covers the valve body, and the water inlet hole is formed in the connecting sleeve.

3. The check valve for the faucet as recited in claim 2, wherein the coupling sleeve is formed with a mating end surface, the mating end surface is provided with a twist groove, and a side surface of the coupling sleeve is formed with a thread.

4. The check valve for a faucet of claim 2, wherein the coupling sleeve is sleeved with a first sealing ring.

5. The check valve for a faucet of claim 2, wherein the valve body is formed with a sealing portion abutting against the water inlet of the positioning sleeve, the sealing portion is sleeved with a second sealing ring abutting against the inner wall of the positioning sleeve, and the water inlet is formed in the sealing portion.

6. The check valve for the faucet as recited in claim 5, wherein a limiting groove is formed inside the water inlet of the sealing portion, and a third sealing ring capable of abutting against the limiting groove is sleeved on the water blocking portion of the valve core.

7. The check valve for a faucet of claim 1, wherein a filter screen is covered at the water inlet hole.

8. A faucet comprising a body formed with partition walls, wherein at least one mounting area is defined between the partition walls, each of the mounting areas is provided with a check valve for faucet as claimed in any one of claims 1 to 7, the body is further formed with the same number of water inlets as the number of the mounting areas, and each of the water inlets is communicated with one of the mounting areas.

9. The faucet of claim 8, wherein the blocking walls define a water mixing region, a water dividing region and a water outlet region which can be communicated, the blocking walls between the mounting region and the water mixing region are provided with water mixing through holes which can be communicated with the mounting region and the water mixing region, at least one water outlet region is arranged in the main body, the blocking walls between the water dividing region and the water outlet region are provided with water dividing through holes which are equal in number to the water outlet region, each water dividing through hole is communicated with the water dividing region and one water outlet region, a water outlet for connecting water outlet equipment is formed in the water outlet region, a mounting hole for mounting a switch is formed in the main body, the switch members on the mounting holes are connected with water control valves for controlling the opening and closing of the water mixing through holes and the water dividing through holes, and the water control valves can be communicated with the water mixing region and the water dividing region.

10. The faucet of claim 9, wherein a backflow region is defined between the blocking walls, the backflow region is capable of communicating with the mixing region and the dividing region simultaneously, a first backflow hole capable of communicating with the dividing region and the backflow region is formed on the blocking wall between the dividing region and the backflow region, and a second backflow hole capable of communicating with the mixing region and the backflow region is formed on the blocking wall between the mixing region and the backflow region.