阅读说明：本技术 自动调节回流四通阀及其混水中心 (Four-way valve capable of automatically adjusting backflow and water mixing center thereof ) 是由 周仲良 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种自动调节回流四通阀及其混水中心,该四通阀包括内设阀腔的阀体,阀体内转动连接转轴,转轴上带有处于阀腔内的导流板,导流板与阀腔内壁之间滑动且密封配合；导流板包括设于转轴外周的本体部,以及与本体部一体成型的两个呈板状的翼部,两个翼部呈180°设置；导流板具有自本体部向翼部延伸的弧形导流面。本发明中,导流板的翼部呈板状,导流板的本体部呈柱状,具有相对较大的外径,能够承受来自供水入口和回水入口的水流的冲击,结构强度高,使用寿命长；同时,自供水入口和/或回水入口进入阀腔的水流均能够沿相应的弧形导流面流向供水出口和/或回水出口,不会在阀腔内形成涡旋,导流效果更佳。(The invention discloses an automatic backflow adjusting four-way valve and a water mixing center thereof, wherein the four-way valve comprises a valve body internally provided with a valve cavity, the valve body is rotationally connected with a rotating shaft, the rotating shaft is provided with a guide plate positioned in the valve cavity, 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 invention, the wing part of the guide plate is plate-shaped, the body part of the guide plate is columnar, has relatively larger 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.)

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.

Technical Field

The invention belongs to the technical field of heating facilities, and particularly relates to an automatic backflow adjusting four-way valve and a water mixing 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.

Disclosure of Invention

The invention aims to provide an 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 invention 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.

In the four-way valve for automatically adjusting the backflow, the wing part of the guide plate is plate-shaped, and the body part of the guide plate is arranged on the periphery of the rotating shaft and is columnar, so that the four-way valve has a relatively larger outer diameter compared with the wing part, can bear the impact of larger water flow from a water supply inlet and a water return inlet, and has high structural strength and 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 the backflow further comprises a valve cover, and the valve cover is connected with the valve body in a sealing mode 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 invention 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 water return 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 invention has the beneficial effects that:

in the four-way valve for automatically adjusting the backflow, the wing part of the guide plate is plate-shaped, and the body part of the guide plate is arranged on the periphery of the rotating shaft and is columnar, so that the four-way valve has a relatively larger outer diameter compared with the wing part, can bear the impact of larger water flow from a water supply inlet and a water return inlet, and has high structural strength and 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.

Drawings

FIG. 1 is a schematic view of the structure of an automatically adjusting four-way valve of the present invention;

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

FIG. 3 is an exploded view of the automatic regulating return four-way valve of the present invention;

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

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