CN204815909U - Tap subassembly - Google Patents

Abstract

The utility model discloses a faucet assembly, which comprises a filtered water control valve and a tap water control valve, which are respectively connected with water supply pipelines to output filtered cold water, filtered hot water, tap water cold water and tap water hot water; the water supply pipeline A Venturi effect part is arranged between the water inlet and the water outlet, and the partial section reduction part of the Venturi effect part leads to the closed space defined by the elastically deformable flexible diaphragm; the flexible diaphragm When the water is supplied, it is gradually contracted by the Venturi effect, and when the water supply is stopped, the negative pressure is used to return the water. The faucet assembly of the utility model can output four kinds of water flows, and there is no water storage in the water outlet pipe, and at the same time, the problem of no dripping at the water outlet when the heater is heated can also be realized.

Description

A faucet assembly

technical field

The utility model relates to a faucet assembly. More specifically, the utility model relates to a faucet assembly with no water storage in the water outlet pipe and no dripping at the water outlet when heating.

Background technique

Existing mixing faucets usually output water after mixing cold and hot water. However, after the water supply is stopped, a certain amount of water is often retained in the outlet pipe. As a result, the next time the water is supplied, the outlet pipe needs to be emptied first. Especially when hot water is supplied, the cold water in the outlet pipe needs to be discharged before hot water can be supplied, which causes a waste of water resources. Pressure relief and drainage devices are often used in existing faucet assemblies, but their structures are complex and the assembly steps are cumbersome.

There are many types of control valves for existing water faucets. Mixing water valves are often used for mixing faucets, and the temperature of the water supply can be adjusted through a mechanical handle. However, when multiple water flows need to be supplied, it is difficult to realize the output of multiple water flows only by using a certain valve. .

Utility model content

An object of the present invention is to solve at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described hereinafter.

Another purpose of the present utility model is to provide a faucet assembly, in which a Venturi effect part is arranged on the water supply pipe, and the local cross-sectional reduction part of the Venturi effect part leads to a water outlet defined by an elastically deformable flexible diaphragm. confined space. Under the action of the Venturi effect part, the confined space is emptied during water supply, and the water in the outlet pipe is sucked back into the confined space to complete water return when the water is stopped.

Another purpose of the utility model is that the faucet assembly adopts touch-sensitive operation to filter water, which is more convenient to operate and has a stronger sense of technology. The combination of touch sensing and mechanical control is adopted to control and output four kinds of water flows to improve the user experience.

In order to achieve these objects and other advantages according to the utility model, a faucet assembly is provided, a Venturi effect part is arranged between the water inlet and the water outlet of the water supply pipeline, and the local section of the Venturi effect part is reduced. The small part leads to the closed space defined by the elastically deformable flexible diaphragm; the flexible diaphragm shrinks gradually under the action of the Venturi effect part during water supply, and when the water supply is stopped due to the negative pressure in the closed space, Under the action of atmospheric pressure, the flexible diaphragm gradually expands to return water. The flexible membrane can be elastically deformed, so it can provide a better airtight space, and the airtight space communicates with the local cross-section reduction part of the Venturi effect part, and the local cross-section reduction part is, for example, in the water outlet direction. A nozzle arranged upstream, a throat arranged downstream of the nozzle, a certain gap is configured between the throat and the nozzle, and the gap communicates with the confined space. When the water flow passes through the partial section reduction portion, the water flow will flow out together with the air in the enclosed space, causing the flexible membrane to shrink. The flexible membrane will provide a greater suction force than the non-deformable airtight space formed by the hard material, thereby providing a greater suction force to suck back the stored water in the water outlet pipe.

Preferably, the flexible diaphragm is arranged in a housing with vent holes; the housing is on the water supply pipeline, and the housing defines an accommodating space for accommodating the enclosed space. The housing can protect the flexible diaphragm from being damaged by external force. The flexible diaphragm is made of silicone or elastic rubber material, for example.

Preferably, the faucet assembly further includes: a first control valve and a second control valve arranged on the outlet pipe of the water supply pipeline, the first control valve is a touch switch; the second control valve is a mechanical valve . The first control valve and the second control valve are respectively connected to supply pipelines to output filtered cold water, filtered hot water, tap cold water and tap hot water.

Preferably, the water supply pipeline includes a filtered water supply pipeline and a tap water supply pipeline; a filter is arranged on the filtered water supply pipeline, and a heater is arranged downstream of the filter; the first control valve controls Filtered water supply line.

Preferably, the filtered water supply pipeline includes a water inlet and a water outlet, a hot water supply pipeline is connected between the water inlet and the water outlet, and the heater is arranged on the hot water supply pipeline.

Preferably, the hot water supply pipeline includes: a second water inlet pipe connected to the water inlet, on which a second solenoid valve is arranged; the second water inlet pipe extends to the inside of the heater, and the first water inlet pipe The two water inlet pipes are also provided with a Venturi effect part, and the partial section reduction part of the Venturi effect part leads to the airtight space defined by the flexible diaphragm in the housing

Preferably, the filtered water supply pipeline includes a water inlet and a water outlet, independent cold water supply pipelines and hot water supply pipelines are connected in parallel between the water inlet and the water outlet, and the heater is arranged at On the hot water supply pipeline. The cold water supply pipeline and the hot water supply pipeline are relatively independent. After passing through the filter, the tap water is directly discharged from the water outlet through the cold water supply pipeline. When hot water is needed, the cold water passing through the filter enters the heater for heating , and then discharged through the water outlet, without the use of water mixing components, hot water of different temperatures can be provided through the temperature setting of the water heater to improve the quality of drinking water.

Preferably, the cold water supply pipeline includes: a first water inlet pipe, on which a first electromagnetic valve is arranged; a first water outlet pipe, on which a Venturi effect part is arranged, and the part of the Venturi effect part The section reducing portion communicates with the closed space defined by the flexible diaphragm in the accommodating space. The hot water supply pipeline includes:

The second water inlet pipe connected to the water inlet is provided with a second solenoid valve; the second water inlet pipe extends to the inside of the heater, and the second water inlet pipe is also provided with a Venturi effect part, so The partial cross-section reduction part of the Venturi effect part leads to the closed space defined by the flexible diaphragm in the housing;

A second water outlet pipe connected to the water outlet, on which a one-way valve is arranged;

And the return pipe connected to the water outlet, the return pipe is provided with a return solenoid valve; the return pipe communicates with the heater

The flexible diaphragm can be accommodated in the housing, for example, and the accommodating space is slightly larger than the closed space defined by the flexible diaphragm. The structure thus formed can not only effectively protect the flexible diaphragm Avoid damage due to misoperation by installers, and at the same time, avoid corrosion in high-humidity and high-heat environments.

The hot water supply pipeline includes: a second water inlet pipe connected to the water inlet, on which a second solenoid valve is arranged; the second water inlet pipe extends to the inside of the heater, and on the second water inlet pipe A Venturi effect part is also provided, and the local cross-sectional reduction part of the Venturi effect part communicates with the closed space defined by the flexible diaphragm in the accommodating space;

The Venturi effect part includes, for example, a nozzle formed upstream along the water outlet direction, and a throat formed downstream of the nozzle. The cross sections of the nozzle and the throat are both smaller than the cross section of the water outlet pipe, thereby forming the Venturi effect. part, when the water flows through the nozzle, the high-speed water flow will take away the air in the enclosed space, thereby forming a negative pressure in the enclosed space. When the first water outlet pipe stops water outlet and is connected to the atmosphere, the airtight space will suck the water in the water outlet pipe back into the airtight space under the action of atmospheric pressure.

The hot water supply pipeline also includes a second water outlet pipe connected to the water outlet, on which a one-way valve is arranged; the setting of the one-way valve is to prevent the cold water from being poured into the heater when the cold water is returned. middle.

And the water return pipe connected to the water outlet, the water return pipe is provided with a return water solenoid valve; the water return pipe communicates with the heater.

Preferably, the heater includes:

a barrel body, which defines a sealed space for water storage and heating; the second water inlet pipe extends into the barrel body through the top of the barrel body; the sealed space is arranged on the top of the barrel body; the The airtight space is, for example, set in a casing, and the casing has, for example, a horizontal cross-sectional shape similar to that of the barrel, and it is set on the second water inlet pipe. When the heating temperature of the heater increases and the water vapor expands, A small amount of water in the heater will also flow into the water absorber, thereby avoiding hot water from dripping from the water outlet when heating.

The heating pipe is arranged at the bottom of the barrel.

Preferably, when the faucet assembly is supplying water or the cold water supply pipeline is supplying water, touch the touch switch to open the first electromagnetic valve for water supply, and the flexible diaphragm connected to the first outlet pipe Under the action of the Venturi effect part, it shrinks to generate negative pressure in the confined space defined by it; touch the touch switch again, the cold water supply pipeline stops water, and the water in the first water outlet pipeline is sucked back into the flexible In the closed space formed by the diaphragm, the cold water return is completed. The solenoid valve is used to control the opening and closing of the water supply pipeline, which improves the sense of technology of the faucet assembly. At the same time, the user can turn on or off the water supply by touching, which is more convenient to use.

Preferably, when the hot water supply pipeline supplies water, long press the touch switch, the long press time is, for example, 3 seconds, open the second solenoid valve, and the cold water enters the heater through the second water inlet pipe for heating, and then Flow through the one-way valve of the second water outlet pipe to the water outlet, and at the same time, the flexible diaphragm connected to the second water outlet pipe shrinks under the action of the Venturi effect to generate negative pressure in the confined space defined; Empty the confined space; touch the touch switch again, the second solenoid valve is closed, the return water solenoid valve is opened, the hot water in the second water outlet pipe flows into the heater through the return water solenoid valve, and returns to the Complete hot water return in the above-mentioned confined space. The first solenoid valve, the second solenoid valve and the return water solenoid valve can all be set as normally closed. Of course, the first solenoid valve and the second solenoid valve can also be set as normally closed, while the return water solenoid valve can be set as normally open.

Preferably, the flexible membrane is a silicone membrane.

The utility model at least includes the following beneficial effects: since the Venturi effect part is set on the water supply pipe, a closed space defined by an elastically deformable flexible diaphragm is communicated with the Venturi effect part, and the space formed by the rigid material has Larger deformation space can form greater negative pressure. When the faucet is turned off, there will be no water in the outlet pipe, and at the same time, no dripping at the outlet when the heater is heating.

Set the control valves of the faucet components separately, and control the mechanical valves and touch switches respectively to realize 4 kinds of output, namely tap water, cold water, tap water, hot water, and filtered water.

The faucet adopts touch-sensitive operation to filter water, which is more convenient to operate and has a stronger sense of technology;

The water absorber used in the return line of the heater is a non-pressure-bearing structure, which is safer for heating;

The faucet assembly has no pressure relief and drainage device, so the installation is more convenient and more beautiful.

Other advantages, objectives and features of the utility model will partly be embodied through the following description, and partly will be understood by those skilled in the art through the research and practice of the utility model.

Description of drawings

Fig. 1 is a structural schematic diagram of the water supply pipeline in the faucet assembly in one embodiment of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of the faucet assembly in an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the filtered water supply system of the faucet assembly described in another embodiment of the present invention;

Fig. 4 is a schematic side view of the filtered water supply system of the faucet assembly in another embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view along D-D of Fig. 4;

Fig. 6 is a schematic cross-sectional view along A-A of Fig. 4;

Figure 7 is a schematic cross-sectional view along E-E of Figure 4.

Detailed ways

The utility model/utility model will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

Fig. 1 shows an implementation form according to the present utility model, wherein the faucet assembly includes: a Venturi effect part 103 is arranged between the water inlet 101 and the water outlet 102 of the water supply pipeline, and the Venturi effect part The partial cross-sectional reduction part of 103 leads to the closed space 107 defined by the elastically deformable flexible diaphragm 108; the flexible diaphragm 105 is gradually contracted by the Venturi effect part 103 during water supply, and when the water supply is stopped, Use its negative pressure to play the role of backwater. The flexible diaphragm 108 is, for example, a silicone diaphragm, which can be elastically deformed, so it can provide a better airtight space, and the airtight space 107 is connected to the local cross-section reduction part of the Venturi effect part, and the local cross-section reduction The small part is, for example, a nozzle 104 arranged upstream of the water outlet direction, a throat 105 arranged downstream of the nozzle 104, an air chamber 106 is formed between the throat pipe 105 and the nozzle 104, and the air chamber 106 is connected to the nozzle 104. The enclosed space 107 communicates. When the water flow passes through the partial section reduction portion, the water flow flows out through the air chamber 106 carrying the air in the enclosed space 107 , causing the flexible membrane 105 to shrink. The flexible membrane 105 will provide a greater suction force than the non-deformable airtight space formed by the hard material, thereby providing a greater suction force to suck back the stored water in the water outlet pipe. The flexible diaphragm 108 is, for example, connected to the water supply pipeline in the manner shown in FIG. The closed end of the housing 109 is sealed and sleeved on the water supply pipe, the open end of the housing 109 is sealed and connected with a base 110 , and the periphery of the flexible diaphragm 108 is sealed and fixed on the edge of the side wall of the housing 109 and the base 110. The casing 109 is provided with a ventilation hole 111 .

As shown in Figure 2, the faucet assembly of the present invention also includes: a first control valve 201 and a second control valve 202 arranged on the outlet pipe 700 of the faucet assembly, which are respectively connected to the water supply pipeline to output filtered water, cold water, Filtered water hot water, tap water cold water and tap water hot water; the water supply pipeline includes a filtered water supply pipeline 300 and a tap water supply pipeline 400; a filter 301 is set on the filtered water supply pipeline 300, and the filter A heater 302 is provided downstream of 301 . The first control valve 201 is, for example, a touch switch, which controls and connects the filtered water supply pipeline 300 .

As shown in Figures 3-5, the filtered water supply pipeline 300 includes a water inlet 303 and a water outlet 304, and an independent cold water supply pipeline 500 and hot water are connected in parallel between the water inlet 303 and the water outlet 304 The water supply pipeline 600 , the heater 302 is arranged on the hot water supply pipeline 600 . The heater 302 is, for example, disposed on a fixed base 700 . It can be seen from FIG. 4 that the cold water supply pipeline 500 and the hot water supply pipeline 600 are set relatively independently, and the cold water is discharged from the water outlet through the heater 302 on the hot water supply pipeline 600 .

As shown in Figure 3, the cold water supply pipeline 500 includes: a first water inlet pipe 501, on which a first solenoid valve 502 is arranged; a first water outlet pipe 503, as shown in Figure 5, on which the first water outlet pipe 503 A Venturi effect part 504 is provided, and the partial section reduction part 506 of the Venturi effect part 504 communicates with a closed space 509 defined by the flexible diaphragm 508 in the casing 507 . The enclosed space 509 is set in the casing 510, the casing 501 includes a body with one end open and one end closed, the closed end of the body is passed through the first water inlet pipe 501, and the open end of the body is sealed A base 511 is connected, and the base 511 is sealingly connected with the periphery of the opening end of the body to the periphery of the flexible diaphragm 508 . The partial cross-section reducing part of the Venturi effect part includes: a nozzle 512 pierced on the base 511, a throat 513 arranged downstream of the nozzle 512, the nozzle 512 and the free end of the throat 513 define An air chamber 514 , the air chamber 514 communicates with the airtight space defined by the flexible diaphragm 508 .

As shown in Figure 6, the hot water supply pipeline 600 includes: a second water inlet pipe 601 connected to the water inlet 303, on which a second solenoid valve 602 is arranged; the second water inlet pipe 601 extends to the Inside the heater 302, the second water inlet pipe 601 is also provided with a Venturi effect part 603, and the partial section reduction part 604 of the Venturi effect part 603 communicates with the flexible diaphragm in the casing 605 606 defines a closed space 607; the heater 302 includes:

The barrel body 3021 defines a space for water storage and heating; the second water inlet pipe 601 extends into the barrel body 3021 through the top of the barrel body 3021; the casing 605 is arranged in the barrel body 3021 The top of the barrel body 3021; the housing 605 is, for example, the same as the section of the barrel body 3021, the housing 605 is provided with a vent hole 612, the housing 605 has a body with one end open and one end closed, and the body is sealed Fastened on the top of the barrel body 3021 , the periphery of the flexible diaphragm 606 is sealed and fixed on the periphery of the opening end of the body and the lower surface of the barrel top.

The heat pipe 3022 is arranged at the bottom of the barrel.

The hot water supply system also includes a second water outlet pipe 608 connected to the water outlet 304, on which a check valve 609 is arranged; one end of the second water outlet pipe 608 is connected to the water outlet 304, and the other end extends to the water outlet 304. The barrel body 3021 of the heater is flush with the lower edge of the casing 605 .

As shown in Figure 7, the hot water supply system also includes a return pipe 610 connected to the water outlet 304, the return pipe 610 is provided with a return solenoid valve 611; the return pipe 610 communicates with the heater 302 .

The filtered water control valve 202 is a touch switch, the first solenoid valve 502 and the second solenoid valve 602 are normally closed, and the return water solenoid valve 611 is normally open; when the cold water supply pipeline supplies water, touch the touch switch Switch, open the first solenoid valve 502 to supply water, the flexible diaphragm 508 arranged on the first outlet pipe 502 shrinks under the action of the Venturi effect part to generate negative pressure in the confined space defined; again Touch the touch switch, the cold water supply pipeline stops water, and the water in the first water outlet pipeline is sucked back into the airtight space formed by the flexible diaphragm 508 to complete the cold water return.

When the hot water supply pipeline supplies water, press and hold the touch switch 202 to open the second solenoid valve 602, the cold water enters the heater 302 through the second water inlet pipe 601 to be heated, and then passes through the one-way valve of the second water outlet pipe 608 609 flows to the water outlet, and at the same time, the flexible diaphragm connected to the second water outlet pipe 608, such as the silicone diaphragm 606, shrinks under the action of the Venturi effect to generate negative pressure in the confined space defined by it, and can even be emptied. The enclosed space; press and hold the touch switch again, the second solenoid valve 602 is closed, and the hot water in the second outlet pipe flows into the heater 302 through the return solenoid valve 611 and returns to the enclosed space Complete hot water return within.

The number of devices and the scale of processing described here are used to simplify the description of the present invention. Applications, modifications and variations to the faucet assembly of the present invention will be apparent to those skilled in the art.

As mentioned above, according to the utility model, since the Venturi effect part is set on the water supply pipeline, and the Venturi effect part communicates with the closed space defined by the elastically deformable flexible diaphragm, it has a reliable return water effect, At the same time, setting this structure in the heater can not only provide a reliable water return effect, but also prevent hot water from overflowing from the second water outlet pipe when the water in the barrel is heated, causing drips to form at the water outlet of the faucet.

Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and implementation. It can be applied to various fields suitable for the utility model. Additional modifications can readily be made by those skilled in the art. Therefore, the invention should not be limited to the specific details and examples shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (10)

1. a faucet assembly, it is connected on supply channel; It is characterized in that, be provided with Venturi effect portion between the water inlet of described supply channel and delivery port, the confined space limited by the flexible membrane of elastically deformable is led in the reduction portion of partial cross section in described Venturi effect portion; Described flexible membrane shrinks by under the suction function of Venturi effect portion generation gradually when supplying water, and stops under atmospheric pressure effect, completing backwater when supplying water.

2. faucet assembly as claimed in claim 1, it is characterized in that, described flexible membrane is arranged on one and has in the housing of passage; Described housing is on described supply channel, and described housing limits one for holding the accommodation space of described confined space.

3. faucet assembly as claimed in claim 2, it is characterized in that, also comprise: be arranged on the first control valve on the outlet conduit of supply channel and the second control valve, described first control valve is soft-touch control; Described second control valve is machinery valve.

4. faucet assembly as claimed in claim 3, it is characterized in that, described supply channel also comprises filtered water supply channel and tap water supply pipeline; Described filtered water supply channel arranges filter, and the downstream of described filter arranges heater; Described first control valve controlled filter water supply channel.

5. faucet assembly as claimed in claim 4, it is characterized in that, described filtered water supply channel comprises a water inlet and a delivery port, connects hot water feeding pipe road between described water inlet and delivery port, and described heater is arranged on described hot water feeding pipe road.

6. faucet assembly as claimed in claim 5, it is characterized in that, described hot water feeding pipe road comprises: the second water inlet pipe connecting described water inlet, is provided with the second magnetic valve; Described second water inlet pipe extends to described heater body, and described second water inlet pipe is also provided with Venturi effect portion, and the confined space of the flexible membrane restriction in described housing is led in the reduction portion of described partial cross section in described Venturi effect portion.

7. faucet assembly as claimed in claim 6, it is characterized in that, between described water inlet and delivery port, be also connected with the cold water supplying pipe road in parallel with described hot water feeding pipe road, described cold water supplying pipe road comprises: the first water inlet pipe, is provided with the first magnetic valve; First outlet pipe, is provided with Venturi effect portion, and the confined space of the flexible membrane restriction in described housing is led in the reduction portion of described partial cross section in described Venturi effect portion;

Described hot water feeding pipe road also comprises: the second outlet pipe connecting described delivery port, is provided with check valve;

And connect the return pipe of described delivery port, described return pipe is provided with backwater magnetic valve; Described return pipe is communicated with described heater.

8. faucet assembly as claimed in claim 6, it is characterized in that, described heater comprises:

Staving, it limits a seal cavity heated for water storage; Described second water inlet pipe extends in described staving through the top of described staving; The confined space that described flexible membrane limits is arranged on described staving top;

Heat-generating pipe, it is arranged on the bottom of described staving.

9. faucet assembly as claimed in claim 6, it is characterized in that, time water supply in hot water feeding pipe road, long by described first control valve, open described second magnetic valve, cold water enters heater heating through the second water inlet pipe, after flow to delivery port through the check valve of the second outlet pipe, meanwhile, the described flexible membrane that described second outlet pipe connects shrinks the confined space making it limit and produces negative pressure under the effect of Venturi effect portion; Emptying described confined space; Again touch described first control valve, described second closed electromagnetic valve, the hot water in described second outlet conduit flows into heater through backwater magnetic valve, gets back in described confined space and completes hot water backwater.

10. the faucet assembly as described in any one of claim 7, it is characterized in that, time water supply in cold water supplying pipe road, touch described first control valve, open described first magnetic valve to supply water, the described flexible membrane that described first outlet pipe connects shrinks the confined space making it limit and produces negative pressure under the effect of Venturi effect portion; Again touch described first control valve, cold water supplying pipe road cuts off the water, the water in described first outlet conduit, in the confined space that sucked back described flexible membrane is formed, completes cold-water return.