CN211145442U

CN211145442U - Four-way valve capable of automatically adjusting backflow and water mixing center thereof

Info

Publication number: CN211145442U
Application number: CN201921738995.6U
Authority: CN
Inventors: 周仲良
Original assignee: Huaxing Aoya Holding Co ltd
Current assignee: Huaxing Aoya Holding Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-31
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses an automatic regulating backflow four-way valve and a water mixing center thereof, wherein the four-way valve comprises a valve body internally provided with a valve cavity, a rotating shaft is rotationally connected in the valve body, a guide plate positioned in the valve cavity is arranged on the rotating shaft, and the guide plate is in sliding and sealing fit with the inner wall of the valve cavity; the guide plate comprises a body part arranged on the periphery of the rotating shaft and two plate-shaped wing parts integrally formed with the body part, and the two wing parts are arranged in a 180-degree manner; the guide plate is provided with an arc-shaped guide surface extending from the body part to the wing part. In the utility model, the wing part of the guide plate is plate-shaped, the body part of the guide plate is columnar, has relatively large outer diameter, can bear the impact of water flow from the water supply inlet and the water return inlet, and has high structural strength and long service life; meanwhile, water flow entering the valve cavity from the water supply inlet and/or the water return inlet can flow to the water supply outlet and/or the water return outlet along the corresponding arc-shaped flow guide surfaces, no vortex is formed in the valve cavity, and the flow guide effect is better.

Description

Four-way valve capable of automatically adjusting backflow and water mixing center thereof

Technical Field

The utility model belongs to the technical field of heating facility, concretely relates to automatic adjust backward flow cross valve and mix water center thereof.

Background

The floor heating is a very widely used heating facility, the heating medium of the floor heating is usually hot water at present, the temperature of the hot water output by a heating heat supply network is the same, but the requirements of each user needing heating connected with the heat supply network on heating parameters are different, and therefore the heating parameters need to be adjusted at any time.

In order to solve the above problems, a chinese patent of invention with an issued publication number of CN101482294B discloses a spherical bidirectional water mixer for a hot water heating system, which includes a spherical shell, wherein a heat supply network water supply pipe interface, a heat supply network water return pipe interface, a user water supply pipe interface and a user water return pipe interface are respectively arranged on an outer wall of the spherical shell at the same horizontal height of the spherical shell, and the heat supply network water supply pipe interface, the heat supply network water return pipe interface, the user water supply pipe interface and the user water return pipe interface are arranged around the periphery of the spherical shell at intervals of 90 degrees. The spherical shell is internally provided with a guide plate, a rotating shaft is connected between the guide plate and the inner wall of the spherical shell, the rotating shaft passes through the spherical center, the rotating surface of the guide plate is vertical to the planes of the heat supply network water supply pipe interface, the heat supply network water return pipe interface, the user water supply pipe interface and the user water return pipe interface, the rotating direction can be realized clockwise and anticlockwise, and the heat supply network water supply pipe interface, the heat supply network water return pipe interface, the user water supply pipe interface and the user water return pipe interface are respectively fixed with a flange.

The function of opening or closing the spherical bidirectional water mixer can be realized by adjusting the angle of the guide plate in the spherical shell, and the water mixing function can also be realized to adjust the temperature of hot water entering a water supply pipe interface of a user.

The spherical bidirectional water mixer has the following disadvantages: the used guide plate is disc-shaped, the thickness of the whole guide plate is consistent, and the guide surface is plane-shaped; the center of the guide plate is opposite to the water supply pipe interface of the heat supply network and the water return pipe interface of the user, and under the frontal impact of water supply of the heat supply network and/or water return of the user, the guide plate with the structure has low structural strength, and is easy to form vortex in the spherical shell, so that the guide effect is poor.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide the automatic adjusting backflow four-way valve which is high in structural strength and good in flow guide effect.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a four-way valve capable of automatically adjusting backflow comprises a valve body internally provided with a valve cavity, wherein a rotating shaft is rotatably connected in the valve body, a guide plate positioned in the valve cavity is arranged on the rotating shaft, and the guide plate is in sliding and sealing fit with the inner wall of the valve cavity; a water supply inlet, a water supply outlet, a water return inlet and a water return outlet which are communicated with the valve cavity are uniformly arranged around the periphery of the valve body; the guide plate comprises a body part arranged on the periphery of the rotating shaft and two platy wing parts integrally formed with the body part, and the two wing parts are arranged in a 180-degree manner; the guide plate is provided with an arc-shaped guide surface extending from the body part to the wing part.

The utility model discloses an among the automatically regulated backward flow cross valve, the alar part of guide plate then is platelike, and the pivot periphery is then located to the body part of guide plate, is the column, consequently compares with the alar part and has relatively great external diameter, can bear the impact of the great discharge that comes from water supply entry and return water entry, and structural strength is high, long service life. Meanwhile, the arc-shaped flow guide surface extending from the body part to the wing part is formed on the flow guide plate, so that water flow entering the valve cavity from the water supply inlet and/or the water return inlet can flow to the water supply outlet and/or the water return outlet along the corresponding arc-shaped flow guide surface, a vortex cannot be formed in the valve cavity, and the flow guide effect is better.

In the four-way valve capable of automatically adjusting the backflow, the valve cavity is cylindrical. Compared with a spherical valve cavity, the cylindrical valve cavity saves the spaces at two ends of the spherical valve cavity, and the space is not directly opposite to the water supply inlet, the water supply outlet, the water return inlet and the water return outlet due to the fact that the space is far away from the horizontal planes where the water supply inlet, the water supply outlet, the water return inlet and the water return outlet are located, water flow is slow, dirt is easy to deposit, and therefore a drain outlet needs to be additionally arranged on the spherical shell. The whole space of the cylindrical valve cavity is almost on the same plane with the water supply inlet, the water supply outlet, the water return inlet and the water return outlet, a slow flow area does not exist in the valve cavity, dirt is not easy to deposit, and therefore a drain outlet does not need to be formed in the valve body.

The four-way valve capable of automatically adjusting backflow also comprises a valve cover, and the valve cover is hermetically connected with the valve body through a flange connecting piece; the valve cover is provided with a through hole, the rotating shaft extends into the valve cavity from the through hole, and the rotating shaft is in sealing fit with the through hole.

In the four-way valve capable of automatically adjusting backflow, the flange connecting piece comprises a first flange fixedly arranged on the valve body and a second flange fixedly arranged on the valve cover, the second flange is provided with a plurality of external threaded holes, the first flange is provided with thread grooves corresponding to the external threaded holes one by one, and external fastening bolts are arranged between the external threaded holes and the thread grooves belonging to the same pair;

the valve cover is provided with a convex column extending into the valve cavity, and the convex column is in sliding and sealing fit with the inner wall of the valve cavity and the guide plate and the convex column.

The convex column and the inner wall of the valve cavity are in sliding and sealing fit, so that the sealing property between the first flange and the second flange is ensured, the guide plate and the convex column and the inner wall of the valve cavity are in sliding and sealing fit, the guide plate can rotate along with the rotating shaft conveniently, the sealing property between the guide plate and the convex column is ensured, and the water flow is prevented from flowing out from a gap between the guide plate and the convex column to cause the failure of temperature regulation.

In the automatic regulating backflow four-way valve, the first flange and the valve body are integrally formed, the second flange and the valve cover are integrally formed, and the through hole penetrates through the second flange.

In the four-way valve capable of automatically adjusting backflow, one side of the second flange, which faces away from the valve body, is provided with a first counter bore located on the periphery of the through hole and a plurality of internal thread grooves arranged along the circumferential direction of the second flange, and the counter bore and the internal thread grooves are used for installing a driving mechanism for driving the rotating shaft to rotate. After the output shafts of the motor and other circumferential drivers are fixedly connected with the rotating shaft, the motor and other circumferential drivers can be fixed on the valve cover through the first counter bores and the internal thread grooves, and the motor and other circumferential drivers are effectively fixed.

In the automatic regulating backflow four-way valve, at least one annular groove is formed in the periphery of the rotating shaft, a sealing ring is embedded in the annular groove, and the sealing ring is in sliding and sealing fit with the inner wall of the through hole.

In the four-way valve capable of automatically adjusting the backflow, the bottom surface of the valve cavity is provided with a second counter bore which is in running fit with the rotating shaft. The second counter bore is used for limiting the position of the rotating shaft and ensuring that the rotating shaft is kept in a vertical state.

Generally, the water supply inlet and the water return inlet are arranged in a circular shape, but in the above-mentioned automatic adjusting and returning four-way valve, the openings of the water supply outlet and the water return outlet are larger in the circumferential direction of the valve cavity; in the axial direction of the valve cavity, the openings of the water supply outlet and the water return outlet are smaller. So when adjusting muddy temperature, the guide plate has great rotation angle at water supply outlet and return water exit for it is higher to muddy temperature's regulation precision.

In the above-mentioned automatic regulating backflow four-way valve, the openings of the water supply outlet and the water return outlet are both hexagonal, and in the circumferential direction of the valve cavity, the vertex angle of the hexagonal opening is provided with a drainage surface which is respectively connected with two surfaces forming the vertex angle. Because the distance between two top corners in the circumferential direction of the valve cavity is the largest, the space at the top corners is relatively small; when the water flow gushes out from the valve cavity, vortex is easily formed at the top corner. The drainage surface formed by cutting off the vertex angle is favorable for eliminating vortex and keeping stable water flow.

The utility model relates to a water mixing center capable of automatically adjusting backflow, which comprises a water mixer, a water separator connected with a water supply outlet of the water mixer, and a water collector connected with a return water inlet of the water mixer; the water mixer is the automatic adjusting backflow four-way valve, the water outlet end of the water collector is further provided with a temperature sensor for detecting the temperature of return water, a rotating shaft in the automatic adjusting backflow four-way valve is connected with a driving mechanism, and the driving mechanism and the temperature sensor are both connected with the controller.

The controller is used for receiving the output signal of the temperature sensor and sending an instruction to the driving mechanism according to the output signal so as to adjust the position of the guide plate.

Compared with the prior art, the beneficial effects of the utility model are that:

Drawings

FIG. 1 is a schematic structural view of the automatic backflow-adjusting four-way valve of the present invention;

FIG. 2 is a schematic structural view of the automatic backflow-adjusting four-way valve of the present invention at another viewing angle;

FIG. 3 is a schematic view of the explosion structure of the automatic backflow-adjusting four-way valve of the present invention;

FIG. 4 is a schematic structural view of the valve body of the automatic regulating four-way valve of the present invention;

fig. 5 is a schematic structural view of the automatic adjusting backflow water mixing center of the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1, 2, 3 and 4, the four-way valve with an automatic adjusting and returning function of the present embodiment includes a valve body 1 having a valve cavity 11 therein, wherein the valve cavity 11 is cylindrical, and a water supply inlet 12, a water supply outlet 13, a water return inlet 14 and a water return outlet 15 which are communicated with the valve cavity 11 are uniformly arranged around the periphery of the valve body 1. The water supply inlet 12 is also provided with a heat supply network water supply pipe connector 16 for connecting a heat source, the water supply outlet 13 is provided with a user water supply pipe connector 17 for connecting a water distributor, the water return inlet 14 is provided with a user water return pipe connector 18 for connecting a water collector, and the water return outlet 15 is provided with a heat source water return pipe connector 19 for connecting the heat source; the heat supply network water supply pipe interface 16, the user water supply pipe interface 17, the user water return pipe interface 18 and the heat source water return pipe interface 19 are formed by being integrally formed with the valve body 1. In this embodiment, one end of the valve cavity 11 is closed, and at the other end of the valve cavity 11, the valve body 1 is fixedly connected with the valve cover 2 through the flange connector 3, the valve cover 2 has a convex pillar 21 extending into the valve cavity 11, and the convex pillar 21 is in sliding and sealing fit with the inner wall of the valve cavity 11.

As shown in fig. 3 and seen in fig. 1 and 2, the flange connector 3 includes a first flange 31 integrally formed with the valve body 1, and a second flange 32 integrally formed with the valve cap 2, wherein the second flange 32 is provided with a plurality of external threaded holes 32a, the first flange 31 is provided with threaded grooves 31a corresponding to the external threaded holes 32a, and the valve body 1 and the valve cap 2 can be fixedly connected by installing external fastening bolts (not shown) between the external threaded holes 32a and the threaded grooves 31 a.

As shown in fig. 3 and seen in combination with fig. 1 and 2, a through hole 22 is formed in the center of the valve cover 2, the through hole 22 penetrates through the first flange 31 and the boss 21, a rotating shaft 4 extending into the valve cavity 11 is installed in the through hole 22, and the rotating shaft 4 is in rotating and sealing fit with the through hole 22; the sealing fit of the two is shown in fig. 3: at least one annular groove 41 is formed in the periphery of the rotating shaft 4, a sealing ring 42 is embedded in the annular groove 41, and the sealing ring 42 is in sliding and sealing fit with the inner wall of the through hole 22.

The part of the rotating shaft 4, which is positioned outside the valve cover 2, is connected with a power output end of a driving mechanism (not shown in the figure), and the driving mechanism is used for driving the rotating shaft 4 to rotate; the second flange 32 is provided with a first counter bore 32b located at the periphery of the through hole 22, and a plurality of internal thread grooves 32c arranged along the circumferential direction of the second flange 32, and the first counter bore 32b and the internal thread grooves 32c are used for fixing the driving mechanism on the valve cover 2.

One end of the rotating shaft 4 extending into the valve cavity 11 is provided with a guide plate 5, one end of the guide plate 5 is abutted against the convex column 21, and the two slide and are in sealing fit; the other end of the guide plate 5 is abutted against the bottom surface of the valve cavity 11, and the guide plate and the valve cavity slide and are in sealing fit; meanwhile, the bottom surface of the valve cavity 11 is further provided with a second counter bore 110 which is in running fit with the rotating shaft 4, and the second counter bore 110 is used for limiting the position of the rotating shaft 4 and ensuring that the rotating shaft 4 is kept in a vertical state.

As shown in fig. 3, in the present embodiment, the baffle 5 includes a main body 51 disposed on the outer periphery of the rotating shaft 4 and integrally formed with the rotating shaft 4, and two wings 52 integrally formed with the main body 51, and the two wings 52 are disposed at an angle of 180 °; the main body 51 is in a column shape identical to the rotating shaft 4, and the wing 52 is in a plate shape, so that the deflector 5 has a shuttle-shaped cross section, and both sides of the deflector 5 have arc-shaped deflector surfaces 53 extending from the main body 51 to the wing 52.

In the present embodiment, the water supply inlet 12 and the water return inlet 14 are both circular openings, and the opening shapes of the water supply outlet 13 and the water return outlet 15 are not circular; the openings of the water supply outlet 13 and the water return outlet 15 are larger in the circumferential direction of the valve cavity 11; whereas the openings of the water supply outlet 13 and the water return outlet 15 are smaller in the axial direction of the valve chamber 11.

As shown in fig. 1 and fig. 2, in the present embodiment, the openings of the water supply outlet 13 and the water return outlet 15 are both hexagonal, and in the rotation direction of the circumferential rotating shaft 4 of the valve cavity 11, the distance between two vertex angles of the hexagonal water supply outlet 13 (or the water return outlet 15) is the largest; meanwhile, a drainage surface 111 is added at the vertex angle, and the drainage surface 111 is respectively connected with two surfaces 112 forming the vertex angle; avoid rivers to form the vortex in the less apex angle department of contained angle, lead to rivers unstability.

So when adjusting muddy temperature, guide plate 5 has great rotation angle for it is higher to muddy temperature's regulation precision.

The working principle of the automatic regulating backflow four-way valve is as follows:

when the guide plate 5 is positioned between the water supply inlet 12 and the water return outlet 15 (and between the water supply outlet 13 and the water return inlet 14), the high-temperature water entering the valve cavity 11 from the water supply inlet 12 contacts with the body part 51 of the guide plate 5, flows to the wing part 52 along the arc-shaped guide surface 53, and then flows out from the water supply outlet 13 for heating; the low-temperature water entering the valve cavity 11 from the backwater inlet 14 and the contact port of the body part 51 of the guide plate 5 flow to the wing part 52 along the arc-shaped guide surface 53, and then all the low-temperature water flows out of the backwater outlet 15 and returns to the heat supply network;

when the guide plate 5 spans between the water supply outlet 13 and the water return outlet 15 (as shown in fig. 4), a part of high-temperature water entering the valve cavity 11 from the water supply inlet 12 and a part of low-temperature water entering the valve cavity 11 from the water return inlet 14 both flow out from the water supply outlet 13 to realize water mixing; the angle of the guide plate 5 is adjusted, and the opening size of the water supply outlets 13 at the two sides of the guide plate 5 is changed, so that the mixed water temperature can be adjusted;

when the guide plate 5 is positioned between the water supply inlet 12 and the water supply outlet 13 (and between the water return inlet 14 and the water return outlet 15), all high-temperature water entering the valve cavity 11 from the water supply inlet 12 flows out of the water return outlet 15 and returns to the heat supply network; the low-temperature water entering the valve cavity 11 from the backwater inlet 14 flows out from the water supply outlet 13 and returns to the heating user; the heat supply network does not supply heat to the user at this time.

Example 2

As shown in fig. 5, the automatic adjusting backflow water mixing center of the present embodiment includes a water mixer 100, the water mixer 100 is the same automatic adjusting backflow four-way valve 100 as that of embodiment 1, a water supply inlet 12 and a water return outlet 15 of the water mixer 100 are both connected to a heat supply network 200, a water supply outlet 13 is connected to a water separator 300, and a water return inlet 14 is connected to a water collector 400; each of the knock out pipes 500, which communicate between the water separator 300 and the water collector 400, is deployed in each user or room.

As shown in fig. 5, the water outlet end of the water collector 400 is further provided with a temperature sensor 600 for detecting the temperature of the returned water, the valve cover 2 of the water mixer 100 is provided with a driving mechanism (not shown) connected to the rotating shaft 4, and the driving mechanism and the temperature sensor 600 are both connected to a controller (not shown). The controller is configured to receive an output signal of the temperature sensor 600, and send an instruction to the driving mechanism according to the output signal to adjust the position of the baffle 5.

Claims

1. An automatic regulating backflow four-way valve comprises a valve body (1) internally provided with a valve cavity (11), wherein the valve body (1) is rotatably connected with a rotating shaft (4), the rotating shaft (4) is provided with a guide plate (5) positioned in the valve cavity (11), and the guide plate (5) is in sliding and sealing fit with the inner wall of the valve cavity (11); a water supply inlet (12), a water supply outlet (13), a water return inlet (14) and a water return outlet (15) which are communicated with the valve cavity (11) are uniformly arranged around the periphery of the valve body (1); the air deflector (5) is characterized by comprising a body part (51) arranged on the periphery of the rotating shaft (4) and two plate-shaped wing parts (52) integrally formed with the body part (51), wherein the two wing parts (52) are arranged in an angle of 180 degrees; the guide plate (5) is provided with an arc-shaped guide surface (53) extending from the body part (51) to the wing part (52).

2. The self-regulating four-way valve according to claim 1, wherein the valve chamber (11) is cylindrical.

3. The self-adjusting four-way valve according to claim 2, further comprising a valve cover (2), wherein the valve cover (2) is hermetically connected with the valve body (1) through a flange connector (3); a through hole (22) is formed in the valve cover (2), the rotating shaft (4) extends into the valve cavity (11) from the through hole (22), and the rotating shaft (4) is in sealing fit with the through hole (22).

4. The four-way valve for automatically adjusting backflow according to claim 3, wherein the flange connector (3) comprises a first flange (31) fixedly arranged on the valve body (1) and a second flange (32) fixedly arranged on the valve cover (2), the second flange (32) is provided with a plurality of external threaded holes (32a), the first flange (31) is provided with threaded grooves (31a) corresponding to the external threaded holes (32a), and external fastening bolts are arranged between the external threaded holes (32a) and the threaded grooves (31a) of the same pair;

the valve cover (2) is provided with a convex column (21) extending into the valve cavity (11), and the convex column (21) is in sliding and sealing fit with the inner wall of the valve cavity (11) and the guide plate (5) and the convex column (21).

5. The self-adjusting four-way valve according to claim 4, wherein the first flange (31) is integrally formed with the valve body (1), the second flange (32) is integrally formed with the valve cover (2), and the through hole (22) penetrates the second flange (32).

6. The self-adjusting backflow four-way valve according to claim 4, wherein the side of the second flange (32) facing away from the valve body (1) is provided with a first counter bore (32b) at the periphery of the through hole (22), and a plurality of internal thread grooves (32c) arranged along the circumference of the second flange (32), and the counter bore and the internal thread grooves (32c) are used for installing a driving mechanism for driving the rotating shaft (4) to rotate.

7. The four-way valve with the automatic adjusting and returning function as claimed in any one of claims 1 to 6, wherein the bottom surface of the valve cavity (11) is provided with a second counter bore (110) which is rotatably matched with the rotating shaft (4).

8. The self-regulating return four-way valve according to any one of claims 1 to 6, wherein the openings of the supply water outlet (13) and the return water outlet (15) are large in the circumferential direction of the valve chamber (11); in the axial direction of the valve cavity (11), the openings of the water supply outlet (13) and the water return outlet (15) are smaller.

9. The four-way valve for automatically adjusting backflow according to claim 8, wherein the openings of the water supply outlet (13) and the water return outlet (15) are hexagonal, and the valve chamber (11) is provided with a flow guide surface (111) at a vertex angle of the hexagonal opening in the circumferential direction, and the flow guide surface (111) is respectively connected with two surfaces forming the vertex angle.

10. A water mixing center capable of automatically adjusting backflow comprises a water mixer (100), a water distributor (300) connected with a water supply outlet (13) of the water mixer (100), and a water collector (400) connected with a backwater inlet (14) of the water mixer (100); the automatic adjusting backflow four-way valve is characterized in that the water mixer (100) is the automatic adjusting backflow four-way valve according to any one of claims 1 to 9, a temperature sensor (600) for detecting the temperature of return water is further arranged at the water outlet end of the water collector (400), a rotating shaft (4) in the automatic adjusting backflow four-way valve is connected with a driving mechanism, and the driving mechanism and the temperature sensor (600) are both connected with a controller.