CN111677910B - Water mixing valve - Google Patents

Water mixing valve Download PDF

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Publication number
CN111677910B
CN111677910B CN202010805556.3A CN202010805556A CN111677910B CN 111677910 B CN111677910 B CN 111677910B CN 202010805556 A CN202010805556 A CN 202010805556A CN 111677910 B CN111677910 B CN 111677910B
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China
Prior art keywords
water
mixing
inlet
water pipe
port
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CN202010805556.3A
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Chinese (zh)
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CN111677910A (en
Inventor
朱海龙
沈文权
肖晓艳
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN202010805556.3A priority Critical patent/CN111677910B/en
Publication of CN111677910A publication Critical patent/CN111677910A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention discloses a water mixing valve, which comprises a hot water pipe inlet, a cold water pipe inlet, a water outlet, a valve core, a circulating port and a water mixing port, wherein the valve core is provided with a water mixing port which is communicated with the water outlet; in a first position, the circulating port unidirectionally conducts the inlet of the hot water pipe to the inlet of the cold water pipe, and the water mixing port is isolated from the inlet of the hot water pipe and the inlet of the cold water pipe; in the second position, the water mixing opening is communicated with the cold water pipe inlet and/or the hot water pipe inlet, and the circulating opening is isolated from the hot water pipe inlet and the cold water pipe inlet. Through the water mixing valve disclosed by the invention, a one-way valve does not need to be additionally installed. When water is used, the valve core is in the second position, the circulating port is in a closed state, and under the condition that only cold water is used, hot water cannot flow out through the water circulating pipeline, so that the water heater cannot be started, and the waste of resources is reduced.

Description

Water mixing valve
Technical Field
The invention relates to the field of water mixing valves.
Background
In the prior art, when the circulating water heater is installed, a check valve needs to be installed at the farthest water using point to prevent cold water from flowing back to a hot water pipeline. There are two problems with this arrangement.
Firstly, the one-way valve is arranged at the farthest end, when cold water of a water consumption point at the farthest end is used, the one-way valve cannot be closed, and partial cold water flows out through the water heater through the one-way valve, so that the water heater is started, and unnecessary waste is caused.
Secondly, the check valve sets up alone and needs to install the disconnection of hydrologic cycle pipeline, and the installation is comparatively loaded down with trivial details.
Disclosure of Invention
The invention aims to overcome the defects that a water heater is started when the farthest cold water is used and a one-way valve is difficult to install in the prior art, and provides a water mixing valve.
The invention solves the technical problems through the following technical scheme:
a water mixing valve comprises a hot water pipe inlet, a cold water pipe inlet, a water outlet, a valve core and a circulating port, wherein the valve core is provided with a water mixing port which is communicated with the water outlet;
in a first position, the circulating port unidirectionally conducts the inlet of the hot water pipe to the inlet of the cold water pipe, and the water mixing port is isolated from the inlet of the hot water pipe and the inlet of the cold water pipe;
in the second position, the water mixing opening is communicated with the cold water pipe inlet and/or the hot water pipe inlet, and the circulating opening is isolated from the hot water pipe inlet and the cold water pipe inlet.
In this scheme, adopt above-mentioned structural style, the check valve that is used for hot water circulating line has integrateed to mix the water valve, need not additionally to install the check valve. When the water is not used, the valve core is positioned at the first position, and hot water circulation is kept through the water circulation pipeline and the circulation port. When water is used, the valve core is in the second position, the circulating port is in a closed state, and under the condition that only cold water is used, hot water cannot flow out through the water circulating pipeline, so that the water heater cannot be started, and the waste of resources is reduced.
Preferably, the valve core is moved by linear motion, rotation or a combination of the two to realize the switching between the first position and the second position.
In this scheme, adopt above-mentioned structural style, set up the valve core into accessible linear motion, rotate or the mode that both combine realizes switching, the switching mode is clear and definite and easy to realize, and also accords with user's use habit through the mode such as front and back, left and right sides, upper and lower.
Preferably, the water mixing port and the circulating port are arranged along a movement path of the valve core.
In this scheme, adopt above-mentioned structural style, mix water mouth, circulation mouth and arrange on case motion path and can be easier set up first position and second position to change the connection of mixing the mouth of a river and circulation mouth through the position switch and also change the realization.
Preferably, the valve core is arranged to move up and down along the axial direction, and the circulating port and the water mixing port are arranged on the valve core along the axial direction.
In this scheme, adopt above-mentioned structural style, the valve core carries out the switching of primary importance and second position through reciprocating, and the circulation mouth is located different heights with mixing the water mouth, and when the case was located the primary importance, the circulation mouth was located same height and UNICOM with hot-water line entry and cold water pipe entry, and it is located different heights and cuts off to mix the mouth of a river and hot-water line entry and cold water pipe entry. When the valve core is positioned at the second position, the water mixing port is positioned at the same height and communicated with the hot water pipe inlet and the cold water pipe inlet, and the circulating port is positioned at different heights and separated from the hot water pipe inlet and the cold water pipe inlet.
Preferably, the circulation port, the water mixing port and the water outlet are sequentially arranged on the valve core from high to low.
In this scheme, adopt above-mentioned structural style, the delivery port is established on mixing the water valve and is linked together with mixing the water mouth, and hot water and cold water flow out through the delivery port after mixing through mixing the water mouth entering mixing the water valve and mixing, simultaneously, the delivery port also can be along with the case removal can adjust the delivery port position through control valve core.
Preferably, the circulation port is isolated from the water mixing port and the water outlet.
In this scheme, adopt above-mentioned structural style, guarantee that circulation mouth is the cut-off state and not rivers pass through when water.
Preferably, a sealing ring is arranged on the upper side of the circulating port and among the circulating port, the water mixing port and the water outlet.
In this scheme, adopt above-mentioned structural style, through outside sealing washer, guarantee that rivers can only flow through the case, guaranteed the off state at circulation mouth and muddy mouth of a river, also mode rivers spill over from the case outside and cause and leak.
Preferably, the water mixing valve is further provided with a water outlet pipe, the water outlet pipe can be communicated with the water outlet, and the valve core can change the size of a connector between the water outlet and the water outlet pipe through moving up and down.
In this scheme, adopt above-mentioned structural style, when the water, the case is located the second position, mix the mouth of a river and cold and hot water pipe UNICOM, delivery port and outlet pipe UNICOM, rivers flow from the outlet pipe through the delivery port after mixing the mouth of a river entering, at the in-process of case from primary importance to second place, the opening of delivery port and outlet pipe can grow gradually, reach the biggest when the second place, and the opening size then can influence the play rivers size, thereby realize reciprocating the function of adjustment play rivers size through the case.
Preferably, a one-way valve is arranged in the circulating opening and can be opened along the inlet direction of the cold water pipe.
In this scheme, adopt above-mentioned structural style, make the circulation mouth one-wayly switch on the hot-water line entry to cold water pipe entry through the check valve.
Preferably, the check valve comprises a valve cavity, a check valve core and a return spring, the check valve core separates the valve cavity into a hot water cavity communicated with the inlet of the hot water pipe and a cold water cavity communicated with the inlet of the cold water pipe under the action of the return spring, and when the water pressure in the hot water cavity is greater than the water pressure in the cold water cavity, the return spring contracts under the action of the water pressure to enable the hot water cavity to be communicated with the cold water cavity.
In this scheme, adopt above-mentioned structural style, reset spring supports with one-way valve core and makes one-way valve core cut off the valve pocket, and rivers can't push away one-way valve core from the cold water chamber and circulate to hot water chamber, and when the water pressure of hot water intracavity was greater than the cold water chamber, reset spring pressurized compression for rivers can follow hot water chamber direction cold water chamber.
Preferably, the valve core is arranged to rotate around the axial direction thereof towards the inlet of the hot water pipe or the inlet of the cold water pipe and is turned to a hot water position, a cold water position and a water mixing position;
in the hot water position, the water mixing port is communicated with the hot water pipe inlet, and the water mixing port is separated from the cold water pipe inlet;
in a cold water position, the water mixing opening is communicated with the inlet of the cold water pipe, and the water mixing opening is separated from the inlet of the hot water pipe;
and at the water mixing position, the water mixing opening is communicated with the cold water pipe inlet and the hot water pipe inlet.
In this scheme, adopt above-mentioned structural style, the case is through rotatory, changes the mouth of a river of mixing with hot water pipe entry and cold water pipe entry access state, and the case is rotatory to have two extreme states, hot water position and cold water position promptly. When the hot water is in the hot water position, the water mixing port is completely communicated with the hot water pipe inlet and completely separated from the cold water pipe inlet, and only hot water flows out at the moment. And when the water mixing port is in the cold water position, the water mixing port is completely communicated with the cold water pipe inlet and completely separated from the hot water pipe inlet, only cold water flows out at the moment, and when the water mixing port is in other states, the water mixing port is simultaneously communicated with the hot water pipe inlet and the cold water pipe inlet, and hot water and cold water flow out simultaneously.
Preferably, in the water mixing position, the valve core can change the sizes of connecting ports of the water mixing port, the inlet of the cold water pipe and the inlet of the hot water pipe through rotation.
In this scheme, adopt above-mentioned structural style, mix the mouth when hot water position is rotatory gradually to cold water position, its interface with the hot-water line entry diminishes gradually, with the interface grow gradually of cold water pipe entry for the hot water that gets into the case diminishes gradually, and cold water gradually changes more, and the temperature of final play water is cooled by heat change until it turns to cold water position. Thereby realizing the function of adjusting the temperature of the outlet water by rotating the valve core.
Preferably, the water mixing valve further comprises a sleeve, the sleeve is integrally formed with the hot water pipe and the water outlet pipe, a cavity is formed inside the sleeve, and the valve core is sleeved in the cavity and can move in the cavity.
In this scheme, adopt above-mentioned structural style, through integrated into one piece's sleeve pipe, contain the case whole wherein and in the sleeve pipe with the hot-water line, cold water piping connection, get each interface of case can be simple and convenient with hot-water line entry and cold water line entry UNICOM, simultaneously, the direct cover of case is established the motion mode that the cavity also can inject the case in the sleeve pipe, realizes case up-and-down motion and rotation more easily.
Preferably, the bottom of the cavity is sealed, the upper part of the cavity is provided with an adjusting rod, the adjusting rod is connected with the valve core, and the adjusting rod can drive the valve core to rotate and move up and down.
In the scheme, by adopting the structure form, the adjusting rod connected to the valve core is arranged at the upper part of the sleeve, and the valve core can move up and down or rotate in the sleeve by rotating or lifting the adjusting rod, so that the functions of using water and adjusting water temperature are realized.
Preferably, the upper portion of the cavity has a limiting member, and the limiting member extends along the inner wall of the cavity toward the central axis of the cavity.
In this scheme, adopt above-mentioned structural style, limit the mileage scope that the case reciprocated through locating part and sleeve pipe bottom, avoid the case to shift out.
The positive progress effects of the invention are as follows: the water mixing valve integrates a one-way valve for a hot water circulation pipeline, and the one-way valve does not need to be additionally installed. When the water is not used, the valve core is positioned at the first position, and hot water circulation is kept through the water circulation pipeline and the circulation port. When water is used, the valve core is in the second position, the circulating port is in a closed state, and under the condition that only cold water is used, hot water cannot flow out through the water circulating pipeline, so that the water heater cannot be started, and the waste of resources is reduced.
Drawings
Fig. 1 is a schematic structural view of a mixing valve core in a first position according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of a mixing valve core in a second position according to a preferred embodiment of the present invention.
Fig. 3 is a schematic structural view of a mixing valve according to a preferred embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a valve core according to a preferred embodiment of the invention.
FIG. 5 is a schematic cross-sectional view of a valve cartridge according to a preferred embodiment of the present invention.
Description of reference numerals:
valve core 1
Circulation port 11
Check valve 111
Reset spring 1111
One-way valve core 1112
Mixing nozzle 12
Water outlet 13
Sealing ring 14
Sleeve 2
Hot water pipe inlet 21
Cold water pipe inlet 22
Cavity 23
Adjusting lever 24
Water outlet pipe 25
A stop member 26.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, a mixing valve according to an embodiment of the present invention includes a hot water pipe inlet 21, a cold water pipe inlet 22, a water outlet 13, and a valve core 1, where the valve core 1 has a water mixing opening 12, the water mixing opening 12 is communicated with the water outlet 13, the mixing valve further includes a circulation opening 11, and the valve core 1 is movable between a first position and a second position; in the first position, the circulating port 11 unidirectionally conducts the hot water pipe inlet 21 to the cold water pipe inlet 22, and the water mixing port 12 is positioned below and isolated from the hot water pipe inlet 21 and the cold water pipe inlet 22; in the second position, the mixing port 12 is in communication with the cold water pipe inlet 22 and/or the hot water pipe inlet 21, and the circulation port 11 is located above and isolated from the hot water pipe inlet 21 and the cold water pipe inlet 22. The mixing valve integrates a check valve 111 for a hot water circulation line without additionally installing the check valve 111. When water is not used, the valve core 1 is positioned at the first position, and hot water circulation is kept through the water circulation pipeline through the circulation port 11. When water is used, the valve core is in the second position, the circulating port 11 is in a closed state, and under the condition of only using cold water, hot water cannot flow out through the water circulating pipeline, so that the water heater cannot be started, and the waste of resources is reduced.
As shown in fig. 1 and 2, in the present embodiment, the valve core 1 is shifted between a first position and a second position by moving linearly up and down, the valve core 1 is located at the top of the upper end in the first position, and the valve core 1 is located at the bottom of the lower end in the second position. The valve core is set to be switched by linear motion, the switching mode is clear and easy to realize, and the switching is carried out in a front-back mode, a left-right mode, an up-down mode and the like, so that the use habit of a user is met. In other embodiments, the valve core 1 can be arranged to be rotated to realize the butt joint with the cold water inlet and the hot water inlet.
As shown in fig. 1, 2, 4, and 5, the mixing port 12 and the circulation port 11 are arranged vertically along the movement path of the valve body 1. The arrangement of the mixing port 12 and the circulation port 11 on the moving path of the valve core 1 can more easily set the first position and the second position, and the change of the connection between the mixing port 12 and the circulation port 11 by the position switching can also be more easily realized.
As shown in fig. 1, 2, 4, and 5, the valve body 1 is provided to be movable up and down in the axial direction, and the circulation port 11 and the mixing port 12 are provided in the valve body 1 in the axial direction. The valve core is switched between a first position and a second position by moving up and down, the circulation port 11 and the water mixing port 12 are located at different heights, when the valve core 1 is located at the first position, the circulation port 11, the hot water pipe inlet 21 and the cold water pipe inlet 22 are located at the same height and are communicated, and the water mixing port 12, the hot water pipe inlet 21 and the cold water pipe inlet 22 are located at different heights and are separated. When the valve core 1 is positioned at the second position, the water mixing port 12, the hot water pipe inlet 21 and the cold water pipe inlet 22 are positioned at the same height and are communicated, and the circulating port 11, the hot water pipe inlet 21 and the cold water pipe inlet 22 are positioned at different heights and are isolated.
As shown in fig. 1, 2, 4, and 5, the circulation port 11, the mixing port 12, and the water outlet 13 are provided in the valve body 1 in this order from the top down. The water outlet 13 is arranged on the water mixing valve and communicated with the water mixing port 12, hot water and cold water enter the water mixing valve through the water mixing port 12 and are mixed and then flow out through the water outlet 13, and meanwhile, the water outlet 13 can also move along with the valve core 1 to adjust the position of the water outlet 13 by controlling the valve core 1.
As shown in fig. 1, 2 and 5, the circulation port 11 is isolated from the mixing port 12 and the water outlet 13. The circulation port 11 is not internally communicated with the mixing port 12, and the mixing port 12 is internally communicated with the water outlet 13. To ensure that no water flows through the circulation port 11 in a blocked state when water is used.
As shown in fig. 4 and 5, a groove is formed on the upper side of the circulation port 11 and between the circulation port 11, the water mixing port 12 and the water outlet 13, a sealing ring 14 can be installed in the groove, and the sealing ring 14 can abut against the wall of the casing 2 to realize sealing. Through outside sealing washer 14, guarantee that rivers can only flow through case 1, guaranteed the state of cutting off of circulation mouth 11 and muddy water mouth 12, also the mode rivers spill over from the case 1 outside and cause and leak.
As shown in fig. 1 and 2, the water mixing valve further comprises a water outlet pipe 25, the water outlet pipe 25 can be communicated with the water outlet 13, and the valve core 1 can change the size of the interface between the water outlet 13 and the water outlet pipe 25 by moving up and down. When the valve core 1 is pulled up, the water outlet 13 is gradually close to the interface of the water outlet pipe 25, and along with the rising of the valve core 1, the interfaces of the water outlet 13 and the water outlet pipe 25 are gradually enlarged until the water outlet 13 is completely butted with the interface of the water outlet pipe 25 when the valve core 1 reaches the second position. When using water, case 1 is located the second position, mixes water mouth 12 and cold and hot water pipe UNICOM, delivery port 13 and outlet pipe 25 UNICOM, rivers flow from mixing water mouth 12 entering back through delivery port 13 from outlet pipe 25, at the in-process of case 1 from primary importance to second place, delivery port 13 can grow gradually with the opening of outlet pipe 25, reach the biggest when the second place, and the opening size then can influence the play rivers size, thereby realize reciprocating the function of adjustment play rivers size through case 1.
As shown in fig. 1, 2, 3 and 5, a check valve 111 is arranged in the circulation port 11, and the check valve 111 can be opened along the direction of the cold water pipe inlet 22. The circulation port 11 is made to conduct the hot water pipe inlet 21 to the cold water pipe inlet 22 in one direction by the check valve 111.
As shown in fig. 1, 2, 3 and 5, the check valve 111 includes a valve chamber, a check valve core 1112 and a return spring 1111, a position of the check valve 111 near the hot water pipe inlet 21 is inwardly converged to make the check valve core 1112 unable to move and the check valve core 1112 is clamped in the valve chamber by the return spring 1111, the check valve core 1112 partitions the valve chamber into a hot water chamber communicated with the hot water pipe inlet 21 and a cold water chamber communicated with the cold water pipe inlet 22 under the action of the return spring 1111, and when the water pressure in the hot water chamber is greater than the water pressure in the cold water chamber, the return spring 1111 contracts under the action of the water pressure to make the hot water chamber communicated with the cold water chamber.
As shown in fig. 1 to 5, the valve core 1 is configured to rotate around its axial direction towards the hot water pipe inlet 21 or the cold water pipe inlet 22 and to be turned to a hot water position, a cold water position and a mixing position; rotating the valve core 1 to the leftmost side to reach a hot water position, wherein the water mixing port 12 is completely turned to the left side and is connected with a hot water pipe inlet 21 in parallel and separated from a cold water pipe inlet 22; rotating the valve core 1 to the rightmost side to a cold water position, wherein the water mixing port 12 is completely turned to the right side and is communicated with a cold water pipe inlet 22 in parallel and separated from a hot water pipe inlet 21; when the valve core 1 is not positioned at the left side and the right side, the valve core 1 is at a water mixing position, and the water mixing port 12 is simultaneously communicated with the cold water pipe inlet 22 and the hot water pipe inlet 21. The valve core 1 changes the access states of the water mixing port 12 and the hot water pipe inlet 21 and the cold water pipe inlet 22 through rotation, and the valve core 1 has two limit states of hot water position and cold water position through rotation. In the hot water position, the mixing port 12 is completely in communication with the hot water pipe inlet 21 and completely isolated from the cold water pipe inlet 22, and only hot water flows out. In the cold water position, the water mixing port 12 is completely communicated with the cold water pipe inlet 22 and completely separated from the hot water pipe inlet 21, only cold water flows out at the moment, in the other states, the water mixing port 12 is simultaneously communicated with the hot water pipe inlet 21 and the cold water pipe inlet 22, and hot water and cold water flow out simultaneously.
As shown in fig. 1 to 5, the mixing opening 12 is an arc-shaped opening, and when located on both sides, the arc-shaped opening completely fits the hot water pipe inlet 21 or the cold water pipe inlet 22. And when the valve core 1 is at the water mixing position, the valve core 1 can change the size of the connecting ports of the water mixing port 12, the cold water pipe inlet 22 and the hot water pipe inlet 21 through rotation. When the water mixing port 12 rotates gradually from the hot water position to the cold water position, the interface between the water mixing port and the hot water pipe inlet 21 is gradually reduced, the interface between the water mixing port and the cold water pipe inlet 22 is gradually increased, so that the hot water entering the valve core 1 is gradually reduced, the cold water is gradually increased, and finally the temperature of the outlet water is changed from hot to cold until the outlet water is changed to the cold water position. Thereby realizing the function of adjusting the temperature of the outlet water by rotating the valve core 1.
As shown in fig. 1, 2 and 3, the mixing valve further includes a sleeve 2, the sleeve 2 is integrally formed with the hot water pipe and the water outlet pipe 25, the sleeve 2 includes a central cavity 23 therein, the valve core 1 is sleeved in the cavity 23 and can move in the cavity 23, and the left and right sides of the cavity 23 are the hot water pipe inlet 21 and the cold water pipe inlet 22. Through the integrally formed sleeve 2, the valve core 1 is integrally contained in the sleeve 2 and is connected with the hot water pipe and the cold water pipe in the sleeve 2, so that each interface of the valve core 1 can be conveniently communicated with the hot water pipe inlet 21 and the cold water pipe inlet 22, meanwhile, the cavity 23 directly sleeved in the sleeve 2 by the valve core 1 can limit the movement mode of the valve core 1, and the up-and-down movement and the rotation of the valve core 1 are more easily realized.
As shown in figures 1 and 2, the bottom of the cavity 23 is closed, the upper part of the cavity is provided with an adjusting rod 24, the adjusting rod 24 is connected with the valve core 1, and the adjusting rod 24 can drive the valve core 1 to rotate and move up and down. The adjusting rod 24 is a handle-shaped part, the inside of the adjusting rod is movably connected with the extending part of the upper end of the valve core 1, the adjusting rod 24 can move up and down and rotate left and right, and the adjusting rod 24 can drive the valve core 1 to move correspondingly. The upper part of the sleeve 2 is provided with an adjusting rod 24 connected with the valve core 1, and the valve core 1 can move up and down or rotate in the sleeve 2 by rotating or pulling the adjusting rod 24, so that the functions of water utilization and water temperature adjustment are realized.
As shown in fig. 1 and 2, the upper portion of the cavity 23 has a stopper 26, and the stopper 26 extends along the inner wall of the cavity 23 toward the central axis of the cavity 23. The position limiting member 26 is a position limiting ring, and when the valve core 1 moves upward to the second position, the position limiting ring supports against the upper edge of the valve core 1 to prevent the valve core 1 from moving upward. The limit piece 26 and the bottom of the sleeve 2 limit the range of mileage of the valve core 1 moving up and down, and the valve core 1 is prevented from moving out.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (11)

1. The water mixing valve is characterized by further comprising a circulating port, and the valve core can move between a first position and a second position;
in the first position, the circulation port unidirectionally conducts the inlet of the hot water pipe to the inlet of the cold water pipe, and the water mixing port is isolated from the inlet of the hot water pipe and the inlet of the cold water pipe;
in the second position, the water mixing opening is communicated with the cold water pipe inlet and/or the hot water pipe inlet, and the circulating opening is isolated from the hot water pipe inlet and the cold water pipe inlet;
a one-way valve is arranged in the circulating port and can be opened along the inlet direction of the cold water pipe;
the valve core realizes the switching between a first position and a second position through linear motion, the water mixing port and the circulating port are arranged along the motion path of the valve core, the valve core is arranged to move up and down along the axial direction, and the circulating port and the water mixing port are arranged on the valve core along the axial direction.
2. The mixing valve as claimed in claim 1, wherein the circulation port, the mixing port and the water outlet are sequentially arranged on the valve core from high to low.
3. The mixing valve of claim 2, wherein the circulation port is isolated from the mixing port and the water outlet.
4. The mixing valve as claimed in claim 2, wherein a sealing ring is provided between the circulation port, the mixing port and the water outlet at the upper side of the circulation port.
5. The mixing valve of claim 2, further comprising a water outlet pipe, wherein the water outlet pipe is communicated with the water outlet, and the valve core can change the size of the interface between the water outlet and the water outlet pipe by moving up and down.
6. The mixing valve of claim 1, wherein the check valve comprises a valve cavity, a check valve core and a return spring, the check valve core separates the valve cavity into a hot water cavity communicated with the inlet of the hot water pipe and a cold water cavity communicated with the inlet of the cold water pipe under the action of the return spring, and when the water pressure in the hot water cavity is higher than that in the cold water cavity, the return spring contracts under the action of the water pressure to enable the hot water cavity to be communicated with the cold water cavity.
7. The mixing valve of claim 1, wherein the valve element is configured to rotate about its axial direction towards the hot water pipe inlet or the cold water pipe inlet and to a hot water position, a cold water position and a mixing position;
in the hot water position, the water mixing port is communicated with the hot water pipe inlet and is separated from the cold water pipe inlet;
in the cold water position, the water mixing port is communicated with the inlet of the cold water pipe, and the water mixing port is separated from the inlet of the hot water pipe;
and at the water mixing position, the water mixing opening is communicated with the cold water pipe inlet and the hot water pipe inlet.
8. The mixing valve of claim 7, wherein in the mixing position, the valve core can change the size of the connecting opening of the mixing opening and the inlet of the cold water pipe and the inlet of the hot water pipe through rotation.
9. The mixing valve of claim 1, further comprising a sleeve, wherein the sleeve is integrally formed with the hot water pipe and the outlet pipe, the sleeve has a cavity therein, and the valve core is sleeved in the cavity and can move in the cavity.
10. The mixing valve of claim 9, wherein the cavity is closed at the bottom and has an adjustment rod at the top, the adjustment rod is connected to the valve core, and the adjustment rod can drive the valve core to rotate and move up and down.
11. The mixing valve of claim 10, wherein the upper portion of the cavity has a retainer extending along the inner wall of the cavity toward the central axis of the cavity.
CN202010805556.3A 2020-08-12 2020-08-12 Water mixing valve Active CN111677910B (en)

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CN112524286B (en) * 2020-11-30 2022-10-14 宁波方太厨具有限公司 Water mixing valve and hot water circulation system comprising same
CN112483684B (en) * 2020-11-30 2022-03-08 宁波方太厨具有限公司 Water mixing valve and hot water circulation system comprising same

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DE4136191B4 (en) * 1991-11-02 2004-07-01 Grohe Water Technology Ag & Co. Kg Changeover valve with ventilation device
US20070194137A1 (en) * 2006-02-17 2007-08-23 Watts Water Technologies, Inc. Thermostatic mixing valve
JP2008057666A (en) * 2006-08-31 2008-03-13 Fuji Koki Corp Mixing valve
CN204459268U (en) * 2015-01-23 2015-07-08 深圳格普斯电热技术有限公司 A kind of explosion-proof relief constant-temperature water mixing valve
CN206439442U (en) * 2016-12-28 2017-08-25 广东万家乐燃气具有限公司 A kind of central hot water mixed cold and hot water valve and central hot water circulation system with check valve
CN206513874U (en) * 2017-01-11 2017-09-22 郑州机电工程学校 A kind of water mixing valve
CN206770674U (en) * 2017-05-19 2017-12-19 陈雄 A kind of water mixing valve with recirculated water return duct
CN208859893U (en) * 2018-08-21 2019-05-14 芜湖美的厨卫电器制造有限公司 Water path connecting device and water-heater system
CN210770915U (en) * 2019-09-09 2020-06-16 广东祥基电器有限公司 Water inlet and outlet assembly of gas water heater

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