CN210624674U

CN210624674U - Water mixing center

Info

Publication number: CN210624674U
Application number: CN201921474208.1U
Authority: CN
Inventors: 杨洪伟; 胡渡; 林日赞
Original assignee: DOUBLE-LIN CORP
Current assignee: DOUBLE-LIN CORP
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-26
Anticipated expiration: 2029-09-05
Also published as: WO2021042887A1

Abstract

The utility model provides a mix water center belongs to and warms up technical field. It has solved how to optimize the valve body structure and has made the hydrologic cycle become the efficient problem. This water mixing center includes valve body and water pump, the valve body lower extreme has the end of intaking and goes out the water end, the valve body right side has the end of catchmenting, the valve body upper end has the end of mixing water, mix the water end and the water inlet intercommunication of water pump, the delivery port of water pump is connected with the check valve, the valve body lateral part is equipped with mounting hole one and mounting hole two, be equipped with the filter screen in the mounting hole one, be equipped with the water hole between mounting hole one and the mounting hole two, be equipped with the decompression case subassembly on the mounting hole two, it has bypass water route and circulation water route in the water end to mix, mounting hole three has been seted up on the valve body left side, be provided with solenoid valve core on the mounting hole three, be equipped with non return mechanism in the circulation. This muddy water center has improved hydrologic cycle efficiency greatly when promoting security and life.

Description

Water mixing center

Technical Field

The utility model belongs to the technical field of warm up, a mix water center is related to.

Background

With the progress of society and the development of market, floor heating equipment has become popular in our daily life. The floor heating is a heating mode which heats water to a certain temperature, conveys the water to a water pipe heat dissipation network under the floor and realizes the heating purpose by heating the floor. Floor heating devices are usually water circulation systems, which include a water mixing center, which can constantly control the temperature of water within a range of values.

The working principle of the water mixing center is approximate, when the temperature set by a user is 50 ℃, the water inlet temperature is lower than 50 ℃, the water inlet valve is completely opened, hot water enters to raise the water temperature, when the water inlet temperature is higher than 50 ℃, the water inlet valve is automatically closed, the water return valve is synchronously opened, the supplied water and the returned water are mixed according to the proportion, and the temperature is automatically adjusted to 50 ℃. The structure of the water mixing center on the market is too simple to react to various water temperatures. For example, application numbers are: 201320800949.0, when the temperature of water at the inlet of the water separator is higher than the set temperature, the water cannot be reused, which wastes resources. In addition, the water flow in the pipeline circulates, impurities or scrap iron are inevitably mixed, and the service life of the valve body is shortened due to damage. Therefore, the problem of solving the above existing problem is that we are not ready to deal with things at present.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide and mix water center, the technical problem that solve is how to optimize the valve body structure and makes hydrologic cycle become high-efficient.

The purpose of the utility model can be realized by the following technical proposal:

the water mixing center comprises a valve body and a water pump, wherein the lower end of the valve body is provided with a water inlet end and a water outlet end, the right side of the valve body is provided with a water collecting end, the upper end of the valve body is provided with a water mixing end, the water mixing end is communicated with a water inlet of the water pump, and a water outlet of the water pump is connected with a detection valve, the water mixing center is characterized in that the side part of the valve body is provided with a first mounting hole laterally communicated with the water inlet end and a second mounting hole laterally communicated with the water outlet end, a filter screen is arranged in the first mounting hole, a water passing hole for communicating the first mounting hole and the second mounting hole is arranged between the first mounting hole and the second mounting hole, a pressure reducing valve core assembly capable of controlling the opening and closing of the water passing hole is arranged on the second mounting hole, a bypass water channel communicated with the water inlet end and a circulating water channel communicated with the water collecting end are arranged in the, the valve body is provided with a fourth mounting hole which is communicated with the side direction of the circulating water path, the water outlet end and the four mounting holes are coaxially arranged and are mutually communicated, and the four mounting holes are internally provided with a cylindrical valve core which can keep the water collecting end and the water outlet end communicated all the time and control the opening and closing of the circulating water path.

The side part of the valve body is provided with a first mounting hole communicated with the water inlet end, and a filter screen is arranged in the first mounting hole. The hot water circulates in entering the valve body through the end of intaking, and there can be some impurity in unavoidably not passing through filterable hot water, like iron rust, silt etc. impurity gets into and participates in the circulation together in the valve body like this, and spool or water pump etc. in the valve body are excessively worn and torn very easily for mix the life-span greatly reduced at water center, the security obtains not guaranteeing simultaneously. The filter screen is arranged at the water inlet end, so that impurities can be directly filtered out, the impurities are not involved in circulation, and the safety is greatly improved while the service life of the valve body is greatly prolonged.

The side part of the valve body is provided with a second mounting hole which is communicated with the lateral part of the water outlet end, a water passing hole is arranged between the first mounting hole and the second mounting hole, the water inlet end is communicated with the water outlet end through the water passing hole, and the second mounting hole is provided with a pressure reducing valve core assembly which can control the opening and closing of the water passing hole. The advantage that the water hole will intake end and play water end intercommunication is that, when the end of intaking intake when too much, unnecessary hot water can follow the water hole and directly get into out the water end and retrieve, sets up like this and makes the valve body obtain promoting to inside hydrologic cycle's accurate nature of temperature control.

The water mixing end is internally provided with a bypass waterway communicated with the water inlet end and a circulating waterway communicated with the water collecting end. The hot water at the water inlet end can flow through the water mixing end through the bypass waterway, so that the hot water enters the circulation to improve the water temperature in the water mixing end to reach the water temperature set by a user. And the circulating water path is communicated with the water collecting end, so that return water which participates in circulation in the water collecting end can enter the water mixing end again to be mixed, and the water temperature of the water mixing end reaches a set temperature so as to enter circulation again. And a third mounting hole which is inclined upwards and communicated with the bypass water channel is formed in the outer side surface of the valve body, and an electromagnetic valve core capable of controlling the opening and closing of the bypass water channel is arranged on the third mounting hole. The mounting hole three-way tilt is seted up and is made the solenoid valve core space occupancy step-down of connection on mounting hole three, can adapt to various complicated installation environment, the area at great reduction muddy water center. The electromagnetic valve core can control the opening and closing of the bypass water channel and also can control the water passing amount of the bypass water channel, so that the water temperature in the valve body can be accurately controlled, and the use is greatly facilitated. The circulating water path is close to and is equipped with non return mechanism in mixing the water end, and non return mechanism can prevent effectively that water pressure is too high in the end of mixing from producing the refluence phenomenon for the rivers that mix the water end are gone into the end of catchmenting and are caused the unable normal use of valve body or rivers to flow backward and damage the valve body, and non return mechanism's setting has promoted the stability and the security that the valve body mixes water greatly.

And a fourth mounting hole communicated with the circulating water path is formed in the side surface of the valve body, the fourth mounting hole and the water outlet end are coaxially arranged, and a cylindrical valve core capable of keeping the water collecting end and the water outlet end communicated all the time and controlling the opening and closing of the circulating water path is arranged in the fourth mounting hole. The fourth mounting hole communicates the water collecting end with the water outlet end, the water collecting end is used for being connected with a water collector, and return water participating in floor heating circulation is gathered in the water collector. If the return water temperature is too low or too high, the water can be recycled and reheated by butting the water outlet end with the outside. And when the water temperature in the water mixing end is too high, the return water can enter the water mixing end through the circulating water channel to be mixed, so that the water temperature is reduced to reach the temperature set by a user.

And a cylindrical valve core which can keep the water collecting end communicated with the water outlet end and simultaneously control the opening and closing of the circulating water path is arranged in the mounting hole IV. The advantage of this setting is that when the muddy water end does not need the return water to mix, close the circulating water route and the return water is all retrieved from the delivery end and is reheated. When the water mixing end needs backwater mixing, the circulating water path opens the water collecting end to be communicated with the water mixing end, and the backwater can be mixed with the hot water in the water mixing end through the circulating water path to reach the set temperature. The energy is saved while the water circulation efficiency in the water mixing center is greatly improved.

In the water mixing center, the four hole diameters of the mounting hole are larger than the inner diameter of the circulating water path, the cylindrical valve core is of a cylindrical structure with the upper end sealed and the lower end opened, the outer peripheral surface of the cylindrical valve core is abutted against the four inner side walls of the mounting hole to form sealing, the lower end opening of the cylindrical valve core is just opposite to the water outlet end, a through groove capable of communicating the water collecting end with the inner cavity of the cylindrical valve core is arranged on the outer peripheral surface of the cylindrical valve core, the groove width of the through groove is gradually increased, the cylindrical valve core can rotate around relative to the mounting hole, and the.

The aperture of the four mounting holes is larger than the diameter of the circulating water path, so that the cylindrical valve core in the four mounting holes can completely cut off the circulating water path when the circulating water path needs to be closed. The outer peripheral surface of the cylindrical valve core is provided with a through groove which can communicate the water collecting end with the inner cavity of the cylindrical valve core, the cylindrical valve core is rotated, and the water collecting end can be communicated with the inner cavity of the cylindrical valve core only by communicating part of the through groove with the water collecting end, so that the water flow can be controlled, and the water temperature can be adjusted conveniently. The groove width that leads to the groove increases gradually, sets up like this and makes when adjusting rivers size more accurate, and along with the rotation of cylindric case, the gradual crescent logical groove of groove width rotates the opening change and will be bigger, can control the rivers size more easily for it becomes sensitive to open or close circulation water route reaction, improves muddy water efficiency greatly.

In the water mixing center, the orifice of the mounting hole IV is provided with an annular groove, a clamp spring is arranged in the annular groove, part of the clamp spring extends out of the annular groove and abuts against the upper end face of the cylindrical valve core, and the center of the upper end face of the cylindrical valve core is provided with a connecting groove used for being matched with a tool.

An annular groove is formed in the orifice of the fourth mounting hole, a clamp spring is arranged in the annular groove, and the clamp spring partially extends out of the annular groove and abuts against the upper end face of the cylindrical valve core. The clamp spring is used for limiting the cylindrical valve core to move along the circumferential direction on the basis of not interfering the circumferential rotation of the cylindrical valve core, namely preventing the cylindrical valve core from falling out of the mounting hole due to water flow impact, so that the mounting firmness of the cylindrical valve core is greatly improved, and the safety of a water mixing center is improved. The upper end face center of the cylindrical valve element is provided with the connecting groove matched with the tool, when the cylindrical valve element needs to be rotated, the cylindrical valve element can be rotated only by inserting the tool matched with the connecting groove, so that the safety of the water mixing center is greatly improved, and unnecessary loss caused by accidental opening of the cylindrical valve element by people is effectively prevented.

In foretell muddy water center, a mounting hole aperture is greater than the internal diameter of intaking the end, the filter screen includes the one end opening one end confined barrel form and links firmly in the end cover of barrel form opening part, is equipped with the inlet opening to intaking the end on the barrel form outer peripheral face, offers the draw-in groove that is linked together with a mounting hole on the face at the drill way place of mounting hole one, and the end cover outer peripheral face is equipped with the fixture block, in the fixture block embedding draw-in groove, the drill way external screw thread connection of mounting hole one has the fender lid that prevents that the filter screen from deviating from in the mounting hole.

An aperture of the mounting hole is larger than the inner diameter of the water inlet end, the filter screen comprises a cylindrical body with one end open and one end closed and an end cover fixedly connected with the opening of the cylindrical body, and the filter screen has the advantages that hot water at the water inlet end can be completely monopolized, and impurities can be filtered through the filter screen before the hot water enters the internal circulation of the valve body, so that the service life and the safety of the valve body are greatly improved. And a clamping groove communicated with the first mounting hole is formed in the surface of the orifice of the first mounting hole, a clamping block is arranged on the outer peripheral surface of the end cover, and the clamping block is embedded into the clamping groove. The filter screen is clamped with the clamping groove through the clamping block to limit circumferential rotation of the filter screen, so that the water inlet hole in the filter screen is always arranged opposite to the water inlet end, and the filtering efficiency and accuracy are greatly improved. And the outer thread of the orifice of the first mounting hole is connected with a blocking cover for preventing the filter screen from being separated from the first mounting hole. The blocking cover can play a role in preventing the filter screen from falling out of the first mounting hole, and the blocking cover is connected with the first mounting hole in a threaded mode to improve the sealing effect between the blocking cover and the first mounting hole.

In foretell muddy water center, relief pressure valve core subassembly includes disk seat, valve rod and case, disk seat links firmly with mounting hole two, the valve rod is worn to establish on the disk seat and valve rod and disk seat threaded connection, is equipped with the guiding hole under the valve rod on the terminal surface, case upper end part stretches into in the guiding hole and can relative valve rod up-and-down motion, the cover is equipped with the spring on the valve rod outer peripheral face, and the spring lower extreme forms with case up end and supports and lean on, still be equipped with the mounting groove under the case on the terminal surface, the mounting groove is equipped with seal ring, the case can support to form sealedly on crossing the water hole up.

The lower end face of the valve rod is provided with a guide hole, the upper end part of the valve core extends into the guide hole and can move up and down relative to the valve rod, the outer peripheral surface of the valve rod is sleeved with a spring, and the lower end of the spring is fixedly connected with the upper end of the valve core. The valve core is limited by the guide hole and can only move up and down along the guide hole, and the spring is used for preventing the valve core from excessively moving and falling out of the guide hole, so that the valve body is damaged, and the safety of the valve body is greatly improved. The spring has elasticity, and the water pressure can offset each other with elasticity, so can play regulation water pressure size through the elasticity size of control spring when the case is towards the impact of rivers, set up like this and can prevent that water pressure from making the interior muddy water end of valve body, muddy water inaccuracy, also can prevent to a certain extent that rivers pressure from excessively damaging the valve body. Meanwhile, when negative pressure occurs at the water inlet end, the valve core can be abutted against the water passing hole by means of the elasticity of the spring at the first time to form sealing to prevent water in the valve from flowing backwards, and the safety of the valve body is improved.

In the water mixing center, a water inlet of the detection valve is communicated with a water outlet of the water pump, a temperature detection head for detecting water temperature is arranged in the detection valve, the temperature detection head is electrically connected with the solenoid valve core, and the solenoid valve core can control the opening and closing of the bypass water channel according to the detection result of the temperature detection head.

A temperature detecting head for detecting water temperature is arranged in the detection valve, the temperature detecting head is electrically connected with the solenoid valve core, and the solenoid valve core can control the opening and closing of the bypass water channel according to the detection result of the temperature detecting head. The temperature detecting head can monitor the water temperature in the detecting valve in real time, if the water temperature is too high or too low, the water temperature can be timely fed back to the electromagnetic valve core, and the electromagnetic valve core can control the water flow in the bypass water channel in real time, so that the water temperature can be adjusted. The arrangement greatly improves the efficiency and speed of adjusting the water temperature, and is convenient for users.

Compared with the prior art, the water mixing center can control the water collecting end and the water outlet end to be communicated all the time and control the circulating water path to be communicated through the through groove in the cylindrical valve core, so that the water circulating efficiency is greatly improved while the structure of the valve body is simplified. The water inlet end and the water outlet end are communicated through the water passing hole and are controlled to be opened and closed through the pressure reducing valve core assembly, so that redundant water entering from the water inlet end enters the water outlet end from the water passing hole to be recycled, and the circulation efficiency is improved while energy conservation and emission reduction are realized. The arrangement of the filter screen in the water inlet end enables the safety and the service life of the water mixing center to be improved.

Drawings

FIG. 1 is a front view of the present mixing hub;

FIG. 2 is a cross-sectional view of the present mixing hub;

FIG. 3 is an oblique view of the valve body;

FIG. 4 is a cross-sectional view of the valve body;

FIG. 5 is a cross-sectional view of the relief valve cartridge assembly;

FIG. 6 is a front view of the cylindrical valve element;

fig. 7 is a side view of the valve body.

In the figure, 1, a valve body; 1a, a water inlet end; 1b, a water outlet end; 1c, a water collecting end; 1d, a water mixing end; 1e, mounting a first hole; 1e1, card slot; 1f, mounting holes II; 1g of water passing holes; 1h, a bypass waterway; 1i, a circulating water path; 1j, a mounting hole III; 1k, mounting holes IV; 1k1, ring groove; 2. a water pump; 2a, a water inlet; 2b, a water outlet; 3. a check valve; 4. a filter screen; 4a, a cylindrical body; 4a1, a water inlet hole; 4b, end covers; 4b1, cartridge; 5. a pressure relief valve core assembly; 5a, a valve seat; 5b, a valve rod; 5b1, guide hole; 5c, a valve core; 5c1, mounting groove; 5d, a spring; 5e, a sealing washer 6 and an electromagnetic valve core; 7. a non-return mechanism; 8. a cylindrical valve element; 8a, a through groove; 8b, a connecting groove; 9. a clamp spring; 10. a blocking cover; 11. A temperature probe.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the water mixing center includes a valve body 1, a water inlet end 1a and a water outlet end 1b are provided at a lower end of the valve body 1, a first mounting hole 1e is provided on an outer circumferential surface of the water inlet end 1a, a diameter of the first mounting hole 1a is larger than an inner diameter of the water inlet end 1a, and the first mounting hole 1e is provided at a side portion of the valve body 1 and is communicated with the water inlet end 1 a. The side part of the valve body 1 is also provided with a second mounting hole 1f communicated with the water outlet end 1 b. The first mounting hole 1e and the second mounting hole 1f are coaxially arranged and are communicated through the water through hole 1 g. The advantage of setting up like this can make the unnecessary hot water of end 1a of intaking directly get into out water end 1b through water hole 1g and discharge the recovery, makes the temperature in the valve body 1 can obtain better control when resources are saved. Be equipped with filter screen 4 in the mounting hole 1e, often be mingled with impurity such as iron fillings, silt in the hot water of end 1a intakes, these impurity get into and warm up the life that circulation can seriously harm ground heating equipment, so filter screen 4's setting up makes these impurity just filtered before getting into valve body 1, has improved valve body 1's security and life greatly. The outer peripheral surface of the filter screen 4 is in clearance fit with the inner wall of the mounting hole 1e, so that hot water at the water inlet end 1a can not pass through the gap between the filter screen 4 and the mounting hole 1e, incomplete purification is caused, and the purification efficiency of the filter screen 4 is improved. Be equipped with on the outer peripheral face of filter screen 4 just to the inlet opening 4a1 of intaking end 1a, hot water can directly enter into the inner chamber of filter screen 4 through inlet opening 4a1, sets up like this and makes impurity can both be stayed in the inner chamber of filter screen 4, only need get rid of filter screen 4 when wasing wash can, easy operation is convenient. The upper end of the filter screen 4 is provided with an end cover 4b, and the outer peripheral surface of the end cover 4b is provided with a clamping block 4b 1. The opening of the first mounting hole 1e is provided with a clamping groove 1e1, and the clamping block 4b1 is clamped in the clamping groove 1e 1. Set up like this and play a spacing effect for filter screen 4, prevent that filter screen 4 from leading to inlet opening 4a1 crooked because of water impact for the impurity of aquatic filters not in place, has promoted the reliability of filter screen 4 installation greatly. The opening of the first mounting hole 1e is further in threaded connection with a blocking cover 10, and a sealing gasket is mounted on the inner side face of the blocking cover 10. The soft sealing structure has the effects that the peripheral surface of the sealing gasket and the orifice of the first mounting hole 1e are abutted to form soft sealing, the baffle cover 10 is in threaded connection with the first mounting hole 1e to form hard sealing, and the soft sealing and the hard sealing are combined to form a double sealing effect, so that the sealing effect between the baffle cover 10 and the first mounting hole 1e is greatly enhanced.

The pressure reducing valve core assembly 5 is arranged in the second mounting hole 1f, the opening and closing of the water passing hole 1g can be controlled through the pressure reducing valve core assembly 5, and the water outlet end 1b can be adjusted in water pressure and has a certain waterproof hammer and non-return function. The relief valve spool assembly 5 includes a valve seat 5a, a stem 5b, and a valve core 5 c. The valve rod 5b is threaded connection portion, sealing portion and guide portion from top to bottom in proper order, and threaded connection portion wears out outside the disk seat 5a and both threaded connection, and the sealing portion outer peripheral face supports with disk seat 5a inner wall and leans on to form sealedly, is equipped with guiding hole 5b1 on the guide portion lower extreme terminal surface, and the case 5c upper end stretches into in the guiding hole 5b1 and can slide from top to bottom relative guiding hole 5b 1. The cover is equipped with spring 5d on the guide part outer peripheral face, and the terminal surface supports under spring 5d and the sealing part and leans on, and spring 5d lower extreme supports with case 5c up end and leans on, and case 5c supports on crossing water hole 1g up end through the elasticity of spring 5 d.

As shown in fig. 2 and 4, the water mixing end 1d communicates with a bypass water passage 1h and a circulation water passage 1 i. And a mounting hole III 1j is formed in the outer side of the valve body 1 corresponding to the bypass water path 1 h. An electromagnetic valve core 6 is arranged in the mounting hole III 1j, and the electromagnetic valve core 6 can control the opening and closing of the bypass water path 1 h. The water mixing end 1d is communicated with a water inlet 2a of the water pump 2, a water outlet end 2b of the water pump 2 is connected with a detection valve 3, a temperature detection head 11 is arranged in the detection valve 3, and the temperature detection head 11 can monitor the temperature of water in the detection valve 3 in real time. The temperature detecting head 11 is electrically connected with the solenoid valve core 6, and the solenoid valve core 6 can control the water flow in the bypass water channel 1h according to the detected temperature data. The circulating water channel 1i is communicated with the water mixing end 1d and the water collecting end 1c, a non-return mechanism 7 is arranged in the circulating water channel 1i, and the non-return mechanism 7 can prevent water in the water mixing end 1d and the bypass water channel 1h from flowing back to the water collecting end 1 c. The circulating water path 1i has the function of communicating the return water recovered by the water collecting end 17 to the water mixing end 1d for reuse, so that the energy is greatly saved. And a fourth mounting hole 1k which is communicated with the water outlet end 1b while being communicated with the circulating water channel 1i in the lateral direction is formed in the outer side of the valve body 1, and the fourth mounting hole 1k is also arranged coaxially with the water outlet end 1 b. The water collecting end 1c is communicated with the water outlet end 1b through a mounting hole IV 1k, and the lower orifice of the mounting hole IV 1k is arranged right opposite to the water outlet end 1 b. A cylindrical valve core 8 is arranged in the mounting hole IV 1k, the cylindrical valve core 8 is of a cylindrical structure with an opening at the lower end and a sealed upper end, and a through groove 8a is arranged on the peripheral surface of the cylindrical valve core 8. The through groove 8a can play a role in controlling the opening and closing of the circulating water path 1i, and the lower end of the cylindrical valve core 8 is opened, so that the water collecting end 1c is communicated with the water outlet end 1b while the circulating water path 1i is communicated. The disconnection of the circulating water path 1i can be realized by rotating the cylindrical valve core 8, and the through groove 8a is opposite to the water collecting end 1c, so that the water collecting end 1c is communicated with the water outlet end 1b, and the backwater can be completely discharged through the water outlet end 1 b. The groove width of the through groove 8a is gradually increased, which has an advantage that the control of the water flow switch in the circulating water path 1i becomes sensitive by rotating the cylindrical valve element 8. The secondary water supply of the water collecting end 1c is utilized to the maximum extent, so that the energy consumption of the floor heating equipment is greatly reduced, and the water circulation in the valve body 1 becomes high-efficient. The non-return mechanism 7 is used for preventing backflow caused by overhigh water pressure in the water mixing end 1d, so that the water collecting end 1c and the water outlet end 1b are damaged, and the safety of the valve body 1 is greatly improved. And two annular grooves are formed in the inner wall of the mounting hole IV 1k, and sealing rings are arranged in the annular grooves. The outer peripheral surface of the sealing ring is abutted against the outer peripheral surface of the cylindrical valve core 8 to form sealing, and the sealing effect between the cylindrical valve core 8 and the mounting hole IV 1k is improved due to the arrangement. The inner side surface of the mounting hole IV 1k close to the hole opening is provided with a ring groove 1k1, a snap spring 9 is arranged in the ring groove 1k1, and the snap spring 9 can abut against the upper end surface of the cylindrical valve core 8 to limit the upward movement of the cylindrical valve core 8 along the axis, so that the cylindrical valve core 8 is prevented from falling out of the mounting hole IV 1 k.

The water inlet end 1a of the water mixing center is connected with a hot water inlet pipe, the water outlet end 1b is communicated with a cold water recovery pipe, the water mixing end 13 is connected with a water inlet 2a of a water pump 2, a water outlet 2b of the water pump 2 is communicated with an inlet of a detection valve 3, the water pump 2 pumps water into the detection valve 3, then the detection valve 3 is in butt joint with a water distributor, the water distributor can distribute the hot water into a floor heating circulation pipe for circulation, and then the water collector recovers the circulated cold water and is connected with a water collection end 1 c. The present mixing center can be divided into four cases in the above cycle: 1. the primary water supply is smaller than the secondary water supply, the water through hole 1g is closed, the circulating water channel 1i is opened, the electromagnetic valve core 6 is opened, all hot water at the water inlet end 1a enters the water mixing end 1d, the backwater part at the water collecting end 1c enters the water mixing end 1d to be mixed with the hot water, and the remaining part of the backwater is recovered through the water outlet end 1 b; 2. the primary water supply is larger than the secondary water supply, the water through hole 1g is opened, the circulating water channel 1i is opened, the electromagnetic valve core 6 is opened, the hot water part enters the water mixing end 13, the rest hot water enters the water outlet end 1b through the water through hole 1g for recycling, the backwater part of the water collecting end 1c enters the water mixing end 1d for mixing with the hot water, and the rest backwater part is recycled through the water outlet end 1 b; 3. when the backwater temperature is higher than the set temperature, the electromagnetic valve core 6 is closed, the water through hole 1g is opened, the circulating water channel 1i is opened, all the hot water at the water inlet end 1a enters the water outlet end 1b for recycling, the backwater part in the water collecting end 1c enters the water mixing end 1d, and the residual backwater part is discharged through the water outlet end 1 b; 4. And (3) the backwater cannot be utilized, the circulating water channel is closed, the water through hole 1g is closed, the electromagnetic valve core 6 is opened, the hot water at the water inlet end 1a completely enters the water mixing end 1d, and the backwater at the water collecting end 1c completely is discharged through the water outlet end 1 b. The arrangement greatly improves the working efficiency of the water mixing center and greatly saves energy.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The water mixing center comprises a valve body (1) and a water pump (2), wherein a water inlet end (1a) and a water outlet end (1b) are arranged at the lower end of the valve body (1), a water collecting end (1c) is arranged on the right side of the valve body (1), a water mixing end (1d) is arranged at the upper end of the valve body (1), the water mixing end (1d) is communicated with a water inlet (2a) of the water pump (2), a water outlet (2b) of the water pump (2) is connected with a detection valve (3), the water mixing center is characterized in that a first mounting hole (1e) communicated with the water inlet end (1a) in the lateral direction and a second mounting hole (1f) communicated with the water outlet end (1b) in the lateral direction are arranged at the side part of the valve body (1), a filter screen (4) is arranged in the first mounting hole (1e), a water passing hole (1g) communicated with the first mounting hole (1e) and the second mounting hole (1f) is arranged between the first mounting hole (, the water mixing valve is characterized in that a bypass water channel (1h) communicated with a water inlet end (1a) and a circulating water channel (1i) communicated with a water collecting end (1c) are arranged in the water mixing end (1d), a mounting hole III (1j) which is inclined upwards and communicated with the bypass water channel (1h) is formed in the left side of the valve body (1), an electromagnetic valve core (6) capable of controlling the opening and closing of the bypass water channel (1h) is arranged on the mounting hole III (1j), an outlet of the bypass water channel (1h) is communicated with an outlet of the circulating water channel (1i), a non-return mechanism (7) capable of preventing water from flowing into the circulating water channel (1i) from the bypass water channel (1h) is arranged in the circulating water channel (1i), a mounting hole IV (1k) communicated with the circulating water channel (1i) in the lateral direction is formed in the valve body (1), a water outlet end (1b) and the mounting hole IV (1k) are coaxially arranged and communicated with each other, and a water collecting end (1c) and a A cylindrical valve core (8) for controlling the opening and closing of the circulating water path (1 i).

2. The water mixing center according to claim 1, wherein the aperture of the four mounting holes (1k) is larger than the inner diameter of the circulating water path (1i), the cylindrical valve core (8) is of a cylindrical structure with a sealed upper end and an open lower end, the outer peripheral surface of the cylindrical valve core (8) is abutted against the inner side wall of the four mounting holes (1k) to form a seal, the lower end opening of the cylindrical valve core (8) is opposite to the water outlet end (1b), a through groove (8a) capable of communicating the water collection end (1c) with the inner cavity of the cylindrical valve core (8) is arranged on the outer peripheral surface of the cylindrical valve core (8), the groove width of the through groove (8a) is gradually increased, the cylindrical valve core (8) can rotate circumferentially relative to the four mounting holes (1k), and the opening and closing of the circulating water path (1i) are controlled through the through.

3. The water mixing center according to claim 2, wherein an annular groove (1k1) is formed in the opening of the mounting hole four (1k), a clamp spring (9) is arranged in the annular groove (1k1), the clamp spring (9) partially extends out of the annular groove (1k1) and abuts against the upper end face of the cylindrical valve core (8), and a connecting groove (8b) used for being matched with a tool is formed in the center of the upper end face of the cylindrical valve core (8).

4. The water mixing center according to claim 1, wherein the aperture of the first mounting hole (1e) is larger than the inner diameter of the water inlet end (1a), the filter screen (4) comprises a cylindrical body (4a) with an open end and a closed end and an end cover (4b) fixedly connected to the open end of the cylindrical body (4a), the outer peripheral surface of the cylindrical body (4a) is provided with a water inlet hole (4a1) facing the water inlet end (1a), the surface of the orifice of the first mounting hole (1e) is provided with a clamping groove (1e1) communicated with the first mounting hole (1e), the outer peripheral surface of the end cover (4b) is provided with a clamping block (4b1) embedded into the clamping groove (1e1), and the orifice of the first mounting hole (1e) is externally threaded with a blocking cover (10) for preventing the filter screen (4) from being separated from the first mounting hole (1 e).

5. The water mixing center according to claim 1, wherein the pressure reducing valve core assembly (5) comprises a valve seat (5a), a valve rod (5b) and a valve core (5c), the valve seat (5a) is fixedly connected with the second mounting hole (1f), the valve rod (5b) is arranged on the valve seat (5a) in a penetrating mode, the valve rod (5b) is in threaded connection with the valve seat (5a), a guide hole (5b1) is formed in the lower end face of the valve rod (5b), the upper end portion of the valve core (5c) extends into the guide hole (5b1) and can slide up and down relative to the valve rod (5b), a spring (5d) is sleeved on the outer peripheral face of the valve rod (5b), the lower end of the spring (5d) abuts against the upper end face of the valve core (5c), a mounting groove (5c1) is further formed in the lower end face of the valve core (5c), and a sealing gasket (5e), the valve core (5c) can abut against the upper end surface of the water through hole (1g) through the elastic force of the spring (5d) to form sealing.

6. The water mixing center according to claim 1, wherein an inlet of the detection valve (3) is communicated with a water outlet (2b) of the water pump (2), a temperature detection head (11) for detecting water temperature is arranged in the detection valve (3), the temperature detection head (11) is electrically connected with the electromagnetic valve core (6), and the electromagnetic valve core (6) can control the opening and closing of the bypass water channel (1h) according to a detection result of the temperature detection head (11).