Electric switching valve and water outlet valve

Abstract

The utility model discloses an electric switching valve and a water outlet valve, which adopt a main valve body and a valve core frame which are split, so that the main valve body and a switching device can be quickly detached from the valve core frame. The electric switching valve comprises a main valve body, a valve element frame, a switching device, a driving assembly and a fixing piece. Wherein one end of the main valve body forms a driving assembly mounting seat, the valve element frame is arranged at the other end of the main valve body, and the valve element frame is divided into two water inlet and outlet flow channels. The switching device is arranged in the valve element frame and controls switching of the two water inlet and outlet flow channels, and the driving assembly is arranged in the driving assembly mounting base and drives the switching device to move relative to the valve element frame. Particularly, a first connecting head is formed at the other end of the main valve body, a second connecting head is formed at the connecting end of the valve element frame and the main valve body, the first connecting head and the second connecting head are arranged in a sleeved mode, the first connecting head and the second connecting head are provided with corresponding through fixing holes, and the fixing piece penetrates through the fixing holes of the first connecting head and the second connecting head at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially an electric switch valve and water outlet valve with the electric switch valve. BACKGROUND

[0002] The electric switch valve usually includes driving device, valve body, switch device in the valve body, one end of the valve body is fixed with the driving device, the other end is formed into valve core frame, the valve core frame has an inlet and two outlets, forms two water inlet and outlet channels, when the switch device acts, can close one of the water inlet and outlet channels, makes fluid discharge through the other water inlet and outlet channel. Usually, the valve body is integrally formed injection molding, when needing to disassemble and replace or maintain the sealing ring on the switch device, the electric switch valve needs to be disassembled as a whole first, then the switch device is disassembled from the valve body, and because the valve body is difficult to disassemble, the efficiency of overhauling is low.

[0003] Therefore, the prior art urgently needs an electric switch valve capable of quickly disassembling and assembling the valve core frame. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of, its purpose is to overcome the above-mentioned problems existing in prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An electric switch valve, comprising: a main valve body, a valve core frame, a switching device, a drive assembly and a fixing member. Wherein, one end of the main valve body is formed into a drive assembly mounting seat, the valve core frame is arranged at the other end of the main valve body, and the valve core frame is divided to form two water inlet and outlet channels. The switching device is arranged in the valve core frame, controls the switching of the two water inlet and outlet channels, the drive assembly is arranged in the drive assembly mounting seat, and drives the switching device to move relative to the valve core frame. In particular, the other end of the main valve body is formed into a first connecting head, the connecting end of the valve core frame and the main valve body is formed into a second connecting head, the first connecting head and the second connecting head are sleeved, and the first connecting head and the second connecting head are provided with corresponding through fixing holes, and the fixing member is arranged through the fixing holes of the first connecting head and the second connecting head.

[0007] As an optional technical solution, the first connecting head and the second connecting head are coaxially sleeved, the inner diameter of the second connecting head is not less than the outer diameter of the first connecting head, and the first connecting head of the main valve body is sleeved in the second connecting head of the valve core frame. It can be guaranteed that the size of the valve core frame is consistent, and the first connecting head of the main valve body is inside the second connecting head of the valve core frame, which can also increase the structural stability of the valve core frame.

[0008] As an optional technical solution, the electric switch valve further comprises an elastic sealing structure, which is pressed between the outer surface of the first connecting head and the inner surface of the second connecting head and is located on the side of the fixing member close to the driving assembly. In this way, the flow channel inside the valve core frame is sealed and isolated from the external environment.

[0009] As an optional technical solution, the fixing holes are two, and the two fixing holes are mirror-symmetric along the axis of the first connecting head. The two symmetric fixing holes can be fixed on both sides of the sleeve structure at the same time, so that the matching structure of the fixing member and the jack is more stable.

[0010] As an optional technical solution, the fixing member is a U-shaped pin. The U-shaped pin is a common pin structure, which is easy to manufacture and purchase, and can cooperate with two jacks to fix the sleeve structure of the first connecting head and the second connecting head, so that the assembly structure is more reliable.

[0011] As an optional technical solution, the electric switch valve further comprises a clamping piece, the outer surface of the driving assembly is formed with a protruding part, the driving assembly mounting seat is formed with a clamping groove, and the clamping piece is arranged in the clamping groove to press the protruding part in the driving assembly mounting seat. Further, the driving assembly is mounted in the driving assembly mounting seat by the clamping piece, so that the driving assembly can be quickly disassembled and replaced by inserting / pulling out the clamping piece.

[0012] As an optional technical solution, the valve core frame comprises a first valve port and a second valve port, and the first valve port and the second valve port are coaxially arranged with the valve core frame. The switching device comprises a valve rod and a switching sealing mechanism, one end of the valve rod is connected with the driving assembly, the other end of the valve rod extends into the valve core frame, and the valve rod reciprocates along the axis of the valve core frame under the driving of the driving assembly. The switching sealing mechanism is fixedly arranged in the valve core frame and with the valve rod, and the shape of the switching sealing mechanism corresponds to the shape of the first valve port and the second valve port, and is used for sealingly closing / opening the first valve port or the second valve port. The valve rod drives the switching sealing structure to reciprocate to open / close the first valve port or the second valve port, when the first valve port is opened and the second valve port is closed, the fluid flows through the first valve port to form a first water inlet / outlet flow channel; when the first valve port is closed and the second valve port is opened, the fluid flows through the second valve port to form a second water inlet / outlet flow channel, so that the switching between the first water inlet / outlet flow channel and the second water inlet / outlet flow channel can be realized by the switching device.

[0013] As an optional technical solution, the driving assembly comprises a stepping motor, which has high reliability and service life, and high precision, and can accurately control the number of rotations and angle of the driving shaft, thereby improving the accuracy of the position of the valve rod switching. Moreover, there is no need for spring return and anti-overload structure, so that the structure of the electric switch valve is greatly simplified, and the reduction of components is also conducive to the miniaturization of the device and the improvement of the reliability of the device structure.

[0014] As an optional technical solution, the first guide hole is arranged on the main valve body, the second guide hole is arranged on the valve core frame, the center connecting line of the first guide hole and the second guide hole coincides with the axis of the valve core frame, the valve rod is arranged through the first guide hole and the second guide hole and is guided and limited by the first guide hole and the second guide hole. The first guide hole and the second guide hole can guide the valve rod, so that the valve rod has a guide at one end of the main valve body and at one end of the valve core frame, and the valve rod can only move in the axial direction of the valve core frame when moving in the valve core frame, and radial deviation is avoided.

[0015] The utility model discloses another aspect still provides a water outlet valve, including the electric switch valve in any one of above -mentioned technical schemes, water outlet valve is seted up with the liquid inlet, first liquid outlet and second liquid outlet, and the electric switch valve can make the liquid inlet selectivity with first liquid outlet or second liquid outlet intercommunication.

[0016] The utility model discloses beneficial effect:

[0017] According to the electric switch valve and the water outlet valve with the electric switch valve provided by the utility model, the main valve body and the valve core frame are designed in a split type, the main valve body and the valve core frame are connected through the fixed part of plug-in, when disassembling or installing, the main valve body and the valve core frame can be separated by taking down the fixed part, therefore, when overhauling, the main valve body and the switch device can be quickly disassembled from the valve core frame, the valve core frame is connected to the valve and does not need to be disassembled, the sealing ring on the switch device can be conveniently and quickly replaced, the operation is simple and convenient, the overhauling efficiency can be improved, meanwhile, when the main valve body and the valve core frame are damaged or deformed after long-term use, only a part can be replaced, and the use cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall assembly view of the electric switch valve in the first embodiment of the utility model.

[0019] Figure 2 It is the split component view of the main valve body and the valve core frame in the first embodiment of the utility model.

[0020] Figure 3 It is the cross section structure schematic view of the electric switch valve provided by the second embodiment of the utility model.

[0021] Figure 4 It is the installation structure schematic view of the main valve body and the drive assembly provided by the third embodiment of the utility model.

[0022] Figure 5 It is the structure schematic view of the water outlet valve provided by the fourth embodiment of the utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS:

[0024] 1-main valve body; 10-driving assembly mounting seat; 11-first connecting head; 12-first guide hole; 2-valve core frame; 21-second connecting head; 22-second guide hole; 23-first valve port; 24-second valve port; 25-upper chamber; 26-lower chamber; 3-switching device; 31-valve rod; 32-switching sealing mechanism; 4-driving assembly; 41-protruding part; 5-fixing piece; 6-clamping piece; 7-elastic sealing structure;

[0025] 100-electric switching valve; 200-outlet valve; 201-outlet valve body; 2011-first liquid outlet; 2012-second liquid outlet. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of the embodiments, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0030] First embodiment

[0031] Figure 1 is the overall assembly view of the electric switching valve in the first embodiment of the utility model. Figure 2 is the split component view of the electric switching valve in the first embodiment of the utility model. In combination with Figure 1 and Figure 2 , the electric switching valve 100 comprises a main valve body 1, a valve core frame 2, a switching device 3, a driving assembly 4 and a fixing piece 5.

[0032] Among them, the main valve body 1 is generally formed as a hollow shell, and its material and specific structure are not limited here, generally speaking, the main valve body 1 can be formed by plastic injection molding, or also can be formed by metal stamping, one end of the main valve body 1 is formed as a driving assembly mounting seat 10, for cooperating with the driving assembly 4 to install.

[0033] The valve core frame 2 is divided to form two water inlet and outlet flow channels, and is formed with a switching port for switching the two water inlet and outlet flow channels, the switching device 3 is arranged in the valve core frame 2, and the driving assembly 4 drives the switching device 3 to move to control the switching of the two water inlet and outlet flow channels. The structure of the valve core frame 2 and the switching device 3 is not limited here.

[0034] For example, the valve core frame 2 can be formed as a skeleton wrapped around the periphery of the switching device 3, the valve core frame 2 is divided to form two chambers, the two chambers have a first opening, a second opening and a third opening respectively communicating with the outside, wherein the first opening and the second opening form a first water inlet and outlet flow channel, and the first opening and the third opening form a second water inlet and outlet flow channel, and the switching device 3 can realize the switching between the first water inlet and outlet flow channel and the second water inlet and outlet flow channel by switching the opening between the two chambers.

[0035] The drive assembly 4 is disposed within the drive assembly mounting base 10 and is used to drive the switching device 3 to move relative to the valve core frame 2. The drive device can be any electric or manual drive device, such as a stepper motor, a servo motor, a linear motor, etc. In some preferred embodiments, the drive assembly 4 is a stepper motor. Stepper motors have high reliability and service life, as well as high precision, and can accurately control the number of rotations and angles of the drive shaft, thereby improving the accuracy of the switching position of the switching device 3. The absence of a spring return and anti-overload structure greatly simplifies the structure of the electric switching valve 100. The reduction in components also facilitates miniaturization of the device and improves the reliability of the device structure.

[0036] Conventional electric switching valves 100 typically integrate the main valve body 1 and valve core frame 2 into an integral mold. Therefore, when repairing or replacing the valve core frame 2 or switching device 3, the electric switching valve 100 must first be disassembled as a whole, and then the switching device 3 must be removed separately. However, the electric switching valve 100 provided in the present embodiment separates the main valve body 1 and valve core frame 2. Therefore, when repairing or replacing the seal, the valve core frame 2 can be removed and assembled separately, enabling rapid repair and seal replacement of the valve core frame 2 or switching device 3.

[0037] Furthermore, in this embodiment, the other end of the main valve body 1 is formed as a first connector 11, and the connection end of the valve core frame 2 and the main valve body 1 is formed as a second connector 21. The first connector 11 and the second connector 21 are sleeved, and the first connector 11 and the second connector 21 are provided with corresponding through fixing holes. That is, in the length direction of the valve core frame 2 and the main valve body 1, the first connector 11 and the second connector 21 are sleeved in an overlapping manner, wherein the first connector 11 can be wrapped and sleeved on the outside of the second connector 21, or the second connector 21 can also be wrapped and sleeved on the outside of the first connector 11, both of which fall within the scope of protection of the present utility model. Preferably, the first connector 11 and the second connector 21 are coaxially sleeved, which can increase the reliability of the sleeve structure of the main valve body 1 and the valve core frame 2.

[0038] It should be noted that the corresponding through fixing holes are formed on the first connector 11 and the second connector 21, which does not specifically mean that the first connector 11 and the second connector 21 have through holes of the same shape, but means that the fixing holes can penetrate the first connector 11 and the second connector 21 at the same time. For example, through holes of the same shape can be formed on the first connector 11 or the second connector 21, or through holes of different shapes but partially overlapping and penetrating can be formed on the first connector 11 and the second connector 21, or Figure 2An example of a preferred situation is also shown, in which a through hole is provided on the second connector 12, and a groove corresponding to the through hole is provided on the first connector 11, so that the fixing hole can also pass through the first connector 11 and the second connector 21 at the same time, all of which fall within the protection scope of the present utility model.

[0039] The fixing member 5 can be any structure that can be inserted and fixed in conjunction with the socket. The accompanying drawings show an example in which the fixing member 5 is a U-shaped pin, but the present invention is not limited to this. In some other embodiments, the fixing member 5 can also be a straight rod pin, a U-shaped pin or an arc-shaped pin, etc. The fixing member 5 passes through the fixing holes of the first connector 11 and the second connector 21 at the same time, so that the first connector 11 and the second connector 21 can be relatively fixed, so as to realize convenient disassembly and fixation of the split valve core frame 2 and the main valve body 1.

[0040] In this embodiment, the existing integrated valve body is designed as a split main valve body 1 and valve core frame 2, and the main valve body 1 and the valve core frame 2 are connected by an inserted fixing part 5. When disassembling or installing, the main valve body 1 and the valve core frame 2 can be separated by simply removing the fixing part 5. Therefore, during maintenance, the main valve body 1 and the switching device 3 can be quickly removed from the valve core frame 2, and the valve core frame 2 is connected to the valve without disassembly, so the sealing ring on the switching device 3 can be replaced quickly and conveniently. The operation is simple and convenient, which can improve the maintenance efficiency. At the same time, when the main valve body 1 and the valve core frame 2 are damaged or deformed due to long-term use, only a part of them can be replaced, saving the use cost.

[0041] Second embodiment

[0042] In the second embodiment of the present invention, a more detailed structure of the electric switching valve 100 is provided. The remaining structures are the same as those of the first embodiment and are not described in detail here.

[0043] Figure 3 Schematic diagram of the cross-sectional structure of the electric switching valve provided by the second embodiment of the present invention. Figure 3 As shown, the first connecting head 11 of the main valve body 1 is mounted in a manner of extending into the second connecting head 21 of the valve core frame 2, that is, the inner diameter of the second connecting head 21 is not less than the outer diameter of the first connecting head 11. As can be seen from the figure, the valve core frame 2 needs to ensure that the size of the valve core frame 2 is consistent from top to bottom for the sake of structural stability, and the valve core frame 2 has a low structural stability due to its hollow structure. Reducing the diameter of the first connecting head 11 of the main valve body 1 and extending it into the second connecting head 21 of the valve core frame 2 can increase the structural stability of the valve core frame 2.

[0044] The fixed hole penetrates the first connecting head 11 and the second connecting head 21 at the same time, and the fixed hole can be one or more, preferably two fixed holes, and the two fixed holes are mirror symmetrical along the axis of the first connecting head 11, and the fixed part 5 is a U-shaped pin. The two symmetrical fixed holes can be fixed on both sides of the sleeve structure at the same time, so that the cooperation structure of the fixed part 5 and the jack is more stable, the U-shaped pin can cooperate with the two jacks to fix the sleeve structure of the first connecting head 11 and the second connecting head 21, so that the assembly structure is more reliable, and the U-shaped pin belongs to a common pin structure, which is convenient to manufacture and purchase.

[0045] In some preferred technical solutions, the valve core frame 2 has a first valve port 23 and a second valve port 24. For example, the valve core frame 2 can be divided into an upper chamber 25 and a lower chamber 26, the first valve port 23 is arranged between the upper chamber 25 and the lower chamber 26, and the second valve port 24 is arranged at the bottom of the lower chamber 26. The first valve port 23 and the second valve port 24 are coaxially arranged with the valve core frame 2.

[0046] The switching device 3 includes a valve rod 31 and a switching sealing mechanism 32. One end of the valve rod 31 is connected with the driving assembly 4, the other end extends into the valve core frame 2, and the valve rod 31 reciprocates along the axis of the valve core frame 2 under the driving of the driving assembly 4. The switching sealing mechanism 32 is arranged in the valve core frame 2 and fixed with the valve rod 31. The switching sealing mechanism 32 corresponds to the shape of the first valve port 23 or the second valve port 24, and is used for sealingly closing / opening the first valve port 23 or the second valve port 24. The switching sealing mechanism reciprocates under the driving of the valve rod 31 to open / close the first valve port 23 or the second valve port 24.

[0047] Specifically, the lower chamber 26 is provided with a water inlet, and the first valve port 23 is opened and the second valve port 24 is closed. The fluid flows into the upper chamber 25 through the first valve port 23 and flows out, forming a first water inlet and outlet flow channel. When the first valve port 23 is closed and the second valve port 24 is opened, the fluid flows into the lower chamber 26 through the water inlet and flows out through the second valve port 24, forming a second water inlet and outlet flow channel. Thus, the switching device 3 can switch between the first water inlet and outlet flow channel and the second water inlet and outlet flow channel.

[0048] Further, generally, the valve rod 31 is provided with a guide structure at the end close to the driving assembly 4. In some embodiments, the valve rod 31 is fixed with the driving assembly 4, and the valve rod 31 can only rotate under the driving of the driving assembly 4, which is equivalent to setting a guide structure. In some embodiments, a first guide hole 12 is arranged in the main valve body 1, and the valve rod 31 extends into the valve core frame 2 through the first guide hole 12. The main valve body 1 guides the valve rod 31 through the first guide hole 12.

[0049] In the embodiment of the utility model, for further improving the accuracy of the position of the valve rod 31 when moving, the second guide hole 22 is further arranged in the valve core frame 2, the center connecting line of the first guide hole 12 and the second guide hole 22 coincides with the axis of the valve core frame 2, the valve rod 31 is arranged through the first guide hole 12 and the second guide hole 22 and is guided and limited by the first guide hole 12 and the second guide hole 22.

[0050] That is to say, not only the first guide hole 12 can guide the valve rod 31, but also the second guide hole 22 can guide the valve rod 31, so that the valve rod 31 has a guide at one end of the main valve body 1 and at one end of the valve core frame 2, and the valve rod 31 can only move along the axial direction of the valve core frame 2 when moving in the valve core frame 2, and radial deviation is avoided.

[0051] In other preferred embodiments, the electric switch valve 100 further comprises an elastic sealing structure 7, which is pressed between the outer surface of the first connecting head 11 and the inner surface of the second connecting head 12 and is located on the side of the fixing member 5 close to the driving assembly 4. Figure 3 The elastic sealing structure 7 is arranged above the fixing member 5, and since the split main valve body 1 and the valve core frame 2 can bring more risk of leakage points, the flow channel inside the valve core frame 2 can be sealed and isolated from the external environment through the sealing of the elastic sealing structure 7.

[0052] Third embodiment

[0053] In the third embodiment of the utility model, a mounting structure of the main valve body 1 and the driving assembly 4 is provided, and the remaining structures are the same as those of the first embodiment, which will not be repeated here.

[0054] Figure 4 Fig. 3 is a schematic view of the mounting structure of the main valve body 1 and the driving assembly 4 provided in the third embodiment of the utility model. Figure 3 and Figure 4 The electric switch valve 100 further comprises a clamping piece 6, the outer surface of the driving assembly 4 is formed with a protruding portion 41, which can be a stepped structure, a fixed flange or any structure protruding from the outer surface of the driving assembly 4, the driving assembly mounting seat 10 is formed with a clamping groove, and the clamping piece 6 is arranged in the clamping groove to press the protruding portion 41 in the driving assembly mounting seat 10. The driving assembly 4 is installed in the driving assembly mounting seat 10 by the clamping piece 6 in the form of plug-in assembly, so that the driving assembly 4 can be quickly disassembled and replaced by inserting / pulling out the clamping piece 6.

[0055] Fourth embodiment

[0056] Figure 5 Fig. 4 is a structural schematic view of a water outlet valve provided in the fourth embodiment of the utility model. Figure 5As shown, in the fourth embodiment of the utility model, provide a kind of water outlet valve 200, including the electric switch valve 100 in any embodiment described above, water outlet valve 200 is equipped with liquid inlet (not shown in drawing), first liquid outlet 2011 and second liquid outlet 2012, electric switch valve 100 can make liquid inlet selectively with first liquid outlet 2011 or second liquid outlet 2012 communication, liquid inlet and first liquid outlet 2011 are communicated by first inlet-outlet water channel, liquid inlet and second liquid outlet 2012 are communicated by second inlet-outlet water channel, so that electric switch valve 100 can be switched by making liquid inlet switch and first liquid outlet 2011 or second liquid outlet 2012 communication to switch first inlet-outlet water channel and second inlet-outlet water channel.

[0057] Wherein, liquid inlet can be communicated with any heat source, receive heated hot water. First liquid outlet 2011 can be connected hot water pipe, hot water pipe can be used as heating pipeline, can also be communicated with other devices, for example, connect the water pipe of vegetable washing or hand washing basin. Second liquid outlet 2012 can be associated with bathroom flow path (not shown in drawing), in some embodiments, second liquid outlet 2012 directly communicates with bathroom flow path, for supplying hot water to user;In some other embodiments, second liquid outlet 2012 communicates with heat exchange circulation pipeline, exchanges heat with fluid in bathroom flow path in heat exchanger, indirectly heats the fluid in bathroom flow path, to supply fluid to user.

[0058] For example, the water outlet valve 200 can include an electric switch valve 100 and a water outlet valve body 201 connected to the electric switch valve 100. The valve core frame 2 and the switching device 3 of the electric switch valve 100 are installed in the water outlet valve body 201. The first valve port 23 and the second valve port 24 of the valve core frame 2 divide the space in the water outlet valve body 201 into a first chamber (i.e., the upper chamber 25 of the electric switch valve 100), a second chamber (i.e., the lower chamber 26 of the electric switch valve 100), and a third chamber (located on the side of the second valve port 24 of the electric switch valve 100 away from the lower chamber 26) arranged in sequence in a first direction. The first chamber and the second chamber are communicated via the first valve port 23, and the second chamber and the third chamber are communicated via the second valve port 24, i.e., the second chamber can selectively communicate with the first chamber or the second chamber.

[0059] The water outlet valve body 201 has a liquid inlet (i.e., a hot water inlet), a first liquid outlet 2011 (i.e., a heating outlet), and a second liquid outlet 2012 (i.e., a heat exchange circulation outlet). The fluid heated by an external heat source (e.g., a combustion chamber) enters the water outlet valve 200 through the liquid inlet. The liquid inlet is communicated with the second chamber, the first liquid outlet 2011 is communicated with the third chamber, and the second liquid outlet 2012 is communicated with the third chamber.

[0060] The switching device 3 of the electric switching valve 100 can selectively open the first valve port 23 between the second chamber and the first chamber or the second valve port 24 between the second chamber and the third chamber under the driving of the driving assembly 4. When the switching device 3 opens the first valve port 23 and closes the second valve port 24, the hot fluid can flow to the heating water circulation loop through the first liquid outlet 2011 for circulation; when the switching device 3 opens the second valve port 24 and closes the first valve port 23, the hot fluid can flow to the heat exchange circulation loop through the second liquid outlet 2012 for circulation, the heat exchange circulation loop can exchange heat with the water in the bathroom flow path, and the water in the bathroom flow path is heated to supply the user with domestic water. That is, the electric switching valve 100 realizes the switching of the heating water circulation loop and the heat exchange circulation loop to selectively provide the user with domestic water or meet the heating demand of the user.

[0061] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrically operated switching valve characterised in that, The utility model relates to a valve, including: a main valve body (1) with one end formed as a drive assembly mounting seat (10); a valve core frame (2) arranged at the other end of the main valve body (1), the valve core frame (2) being divided to form two water inlet and outlet flow channels; a switching device (3) arranged in the valve core frame (2) to control the switching of the two water inlet and outlet flow channels; a drive assembly (4) arranged in the drive assembly mounting seat (10) to drive the switching device (3) to move relative to the valve core frame (2); a fixing member (5), the other end of the main valve body (1) being formed as a first connecting head (11), the connecting end of the valve core frame (2) and the main valve body (1) being formed as a second connecting head (21), the first connecting head (11) and the second connecting head (21) being sleeved, and the first connecting head (11) and the second connecting head (21) being provided with corresponding through fixing holes, and the fixing member (5) being arranged through the fixing holes of the first connecting head (11) and the second connecting head (21) at the same time.

2. The motor-operated switch valve according to claim 1, characterized by The first connecting head (11) and the second connecting head (21) are coaxially sleeved, the inner diameter of the second connecting head (21) is not less than the outer diameter of the first connecting head (11), and the first connecting head (11) of the main valve body (1) is sleeved in the second connecting head (21) of the valve core frame (2) in a manner of extending into the second connecting head (21).

3. The motor-operated switch valve according to claim 2, characterized in that Further including: an elastic sealing structure (7) abutting between the outer surface of the first connecting head (11) and the inner surface of the second connecting head (21) and located at the side of the fixing member (5) close to the drive assembly (4).

4. Motor-operated switch valve according to any of claims 1 - 3, characterized in that The fixing holes are two, and the two fixing holes are mirror-symmetrical along the axis of the first connecting head (11).

5. The motor-operated switch valve according to claim 4, characterized in that The fixing member (5) is a U-shaped pin.

6. The motor-operated switch valve according to any one of claims 1 to 3, characterized by Further including: a clamping member (6), the outer surface of the drive assembly (4) being formed with a protruding portion (41), the drive assembly mounting seat (10) being formed with a clamping groove, and the clamping member (6) being arranged in the clamping groove to abut the protruding portion (41) in the drive assembly mounting seat (10).

7. The motor-operated switch valve according to any one of claims 1 to 3, characterized by The valve core frame (2) includes a first valve port (23) and a second valve port (24), the first valve port (23) and the second valve port (24) are coaxially arranged with the valve core frame (2), and the switching device (3) includes: a valve rod (31) connected with the drive assembly (4) at one end and extending into the valve core frame (2) at the other end, and the valve rod (31) reciprocates along the axis of the valve core frame (2) under the drive of the drive assembly (4); a switching sealing mechanism (32) arranged in the valve core frame (2) and fixed with the valve rod (31), the switching sealing mechanism (32) corresponding to the shapes of the first valve port (23) and the second valve port (24) to seal and close / open the first valve port (23) or the second valve port (24).

8. The motor-operated switch valve of claim 7, wherein The drive assembly (4) includes a stepping motor.

9. The motor-operated switch valve of claim 8, wherein The first guide hole (12) and the second guide hole (22) are coaxial with the axis of the valve core frame (2). The valve rod (31) passes through the first guide hole (12) and the second guide hole (22) and is guided and limited by the first guide hole (12) and the second guide hole (22).

10. A water outlet valve characterized by The electric switch valve (100) comprises the water outlet valve (200) and the electric switch valve (100) according to any one of claims 1-9, the water outlet valve (200) is provided with a liquid inlet, a first liquid outlet (2011) and a second liquid outlet (2012), and the electric switch valve (100) can selectively connect the liquid inlet with the first liquid outlet (2011) or the second liquid outlet (2012).

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