Water replenishing valve and water inlet valve

Abstract

The utility model relates to the technical field of water valves, in particular to a water replenishing valve and a water inlet valve. The water replenishing valve is installed on a main valve body of the water inlet valve, a water inlet channel, a confluence channel and a water outlet channel which are sequentially communicated are formed in the main valve body, the water replenishing valve comprises a water replenishing valve body and an electromagnetic switch, a first water replenishing channel and a second water replenishing channel are formed in the water replenishing valve body, and the first water replenishing channel is communicated with the water inlet channel. And the second water supplementing channel is communicated with the confluence channel. The electromagnetic switch is installed between the first water supplementing channel and the second water supplementing channel so as to connect or disconnect the first water supplementing channel and the second water supplementing channel. The water inlet valve comprises a main valve body and a water supplementing valve installed on the main valve body, a second water supplementing channel is formed in the water supplementing valve body, and the second water supplementing channel is communicated with the confluence channel. The electromagnetic switch achieves opening and closing of the second water supplementing channel according to the water consumption of the outer circulation water path of the water inlet valve so as to connect or disconnect the first water supplementing channel and the second water supplementing channel, and therefore switching of the large water amount and the small water amount of the water inlet valve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water valves, in particular to a water replenishing valve and a water inlet valve. Background Art

[0002] A water inlet valve is installed in the water circuit system of a wall-mounted boiler. The water inlet valve includes a main valve body and a water replenishing valve installed on the main valve body. The main valve body is used to supply water to the external circulation water circuit. After the internal water in the internal circulation water circuit (such as the heating water circuit) gradually decreases during long-term operation, it is necessary to replenish water into the internal circulation water circuit through the water replenishing valve.

[0003] Due to the power limitation of the burner of the wall-mounted boiler, a flow limiting ring is often provided in the main valve body of the water inlet valve to limit the maximum water inlet flow rate. However, the structure of the water replenishing valve is single and the flow rate is constant, and it can only replenish water into the internal circulation water circuit, resulting in the water inlet valve being unable to provide sufficient water to the water circuit system of the wall-mounted boiler in time when the water demand at the water using end of the external circulation water circuit increases. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a water replenishing valve and a water inlet valve to realize the water volume adjustment of the water inlet valve.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A water replenishing valve is installed on the main valve body of the water inlet valve. An inlet channel, a confluence channel and an outlet channel are sequentially communicated in the main valve body. The water replenishing valve includes:

[0007] A water replenishing valve body, in which a first water replenishing channel and a second water replenishing channel are opened. The first water replenishing channel is communicated with the inlet channel, and the second water replenishing channel is communicated with the confluence channel;

[0008] An electromagnetic switch is installed between the first water replenishing channel and the second water replenishing channel to connect or disconnect the first water replenishing channel and the second water replenishing channel.

[0009] As a preferred scheme of the water replenishing valve, the second water replenishing channel is arranged side by side with the first water replenishing channel.

[0010] As a preferred scheme of the water replenishing valve, the cross-sectional area of the second water replenishing channel is less than or equal to the cross-sectional area of the first water replenishing channel.

[0011] As a preferred scheme of the water replenishing valve, a communicating pipe with an opening at the top is arranged in the water replenishing valve body. A communicating channel is arranged in the communicating pipe. A cavity is arranged outside the communicating pipe. The first water replenishing channel is communicated with the cavity. The communicating channel is communicated with the second water replenishing channel. The cavity and the communicating channel are connected or disconnected through the electromagnetic switch.

[0012] As a preferred embodiment of the water replenishing valve, the electromagnetic switch includes:

[0013] An electromagnetic valve, which includes a valve seat and a valve core, and the valve seat is installed on the water replenishing valve body;

[0014] A sealing assembly, which is arranged inside the water replenishing valve body. When the electromagnetic valve is powered off, the valve core presses against the sealing assembly so that the sealing assembly blocks the opening of the communication pipe; when the electromagnetic valve is powered on, the valve core is separated from pressing against the sealing assembly.

[0015] As a preferred embodiment of the water replenishing valve, the sealing assembly includes:

[0016] An elastic diaphragm, the circumferential edge of which is arranged on the inner side wall of the cavity;

[0017] A sealing seat, which is installed on the elastic diaphragm. When the electromagnetic valve is powered off, the valve core presses against the sealing seat to drive the elastic diaphragm to block the opening of the communication pipe; when the electromagnetic valve is powered on, the valve core is separated from pressing against the sealing seat, and the elastic diaphragm is separated from pressing against the opening of the communication pipe.

[0018] As a preferred embodiment of the water replenishing valve, the sealing seat includes a seat body and a gas guiding column arranged at the bottom end of the seat body. The elastic diaphragm is provided with a mounting hole, and the gas guiding column passes through and is fixed in the mounting hole.

[0019] As a preferred embodiment of the water replenishing valve, the gas guiding column includes a first column and a second column. The sealing seat is provided with a sealing hole penetrating through the seat body and the first column, and the sealing seat is also provided with an air inlet hole penetrating through the seat body and the second column, so that the first water replenishing channel, the air inlet hole and the cavity are communicated in sequence;

[0020] When the electromagnetic valve is powered off, the first column extends into the communication channel, the second column extends into the cavity, and the valve core presses against the seat body and blocks the sealing hole.

[0021] As a preferred embodiment of the water replenishing valve, a clamping groove for accommodating the elastic diaphragm is respectively formed between the first column and the second column and the seat body.

[0022] An inlet valve, which includes a main valve body and the above-mentioned water replenishing valve installed on the main valve body.

[0023] The beneficial effects of the present utility model are:

[0024] The water replenishing valve and the water inlet valve proposed by the present utility model realize small-flow water inlet of the water inlet valve by opening a second water replenishing channel in the water replenishing valve body and connecting the second water replenishing channel with the confluence channel. When the water consumption of the outer circulation water path of the water inlet valve is small, the electromagnetic switch is closed, and the first water replenishing channel is disconnected from the second water replenishing channel. When the water consumption of the outer circulation water path of the water inlet valve is large, the electromagnetic switch is opened, and the first water replenishing channel is connected with the second water replenishing channel, increasing the water supply from the second water replenishing channel to the water-using end of the outer circulation water path, realizing large-flow water inlet of the water inlet valve, and thus realizing the water volume adjustment of the water inlet valve. The electromagnetic switch can realize the opening and closing of the second water replenishing channel according to the water consumption of the outer circulation water path of the water inlet valve, thereby realizing the switching between large and small water volumes of the water inlet valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the water inlet valve provided by an embodiment of the present utility model;

[0026] Figure 2 is a schematic structural diagram of the water inlet valve when supplying water with a small flow rate provided by an embodiment of the present utility model;

[0027] Figure 3 is a schematic structural diagram of the water inlet valve when supplying water with a large flow rate provided by an embodiment of the present utility model;

[0028] Figure 4 is a cross-sectional view of the elastic diaphragm provided by an embodiment of the present utility model;

[0029] Figure 5 is a cross-sectional view of the seal seat provided by an embodiment of the present utility model.

[0030] The names and reference numerals of the components in the figures are as follows:

[0031] 1. Water replenishing valve body; 11. Water replenishing pipe; 111. First water replenishing channel; 112. Third water replenishing channel; 12. Water replenishing adjusting pipe; 120. Second water replenishing channel; 13. Connecting pipe; 131. Connecting channel; 132. Cavity; 2. Water replenishing switch; 3. Electromagnetic switch; 31. Electromagnetic valve; 311. Valve seat; 312. Valve core; 313. Spring; 32. Elastic diaphragm; 321. Mounting hole; 33. Seal seat; 330. Card slot; 331. Seat body; 332. First column; 3320. Sealing hole; 333. Second column; 3330. Air inlet hole;

[0032] 4. Main valve body; 41. Water inlet interface; 410. Water inlet channel; 42. Confluence channel; 5. Impeller assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the technical problems solved by the present utility model, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings rather than all of them.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" 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 being "below", "below", and "under" 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 lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", and "left" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0037] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

[0038] As Figure 1 and Figure 2 shown, this embodiment provides a water inlet valve, which includes a main valve body 4 and a make-up water valve installed on the main valve body 4. The water inlet valve is mainly installed in the water circuit system of the wall-mounted boiler to supply water to the external circulation water circuit and supplement water to the internal circulation water circuit through the make-up water valve at the same time.

[0039] Specifically, a water inlet channel 410, a confluence channel 42, and a water outlet channel are successively formed in the main valve body 4. The main valve body 4 is provided with a water inlet interface 41, a water outlet interface, and a water replenishing interface. The inlet of the water inlet channel 410 is located in the water inlet interface 41, the outlet of the water outlet channel is located in the water outlet interface, and an external pipeline is communicated with the water inlet interface 41. The impeller assembly 5 is installed in the main valve body 4 to drive the water flow in the main valve body 4 to sequentially pass through the water inlet channel 410 and the confluence channel 42 along Figure 2 the direction indicated by the arrow in the figure, and finally flow out from the water outlet channel to the water-using end of the external circulation.

[0040] As Figure 1 and Figure 2 shown, this embodiment also proposes a water replenishing valve, which includes a water replenishing pipe 11. A first water replenishing channel 111 and a third water replenishing channel 112 are formed in the water replenishing pipe 11. When the water replenishing valve is installed on the main valve body 4, the third water replenishing channel 112 in the water replenishing pipe 11 is communicated with the water replenishing interface. A water replenishing switch 2 is also installed on the water replenishing valve. The water replenishing switch 2 includes a valve stem and a handwheel. One end of the valve stem extends into the interior of the water replenishing valve body 1, and the other end of the valve stem is connected to the handwheel. By screwing the handwheel to drive the valve stem to move, the first water replenishing pipe 11 and the third water replenishing pipe 11 are connected or isolated. When the internal circulation water path is short of water, by manually screwing the handwheel to open the water replenishing switch 2, the first water replenishing channel 111 is communicated with the third water replenishing channel 112, and the water flow in the water inlet channel 410 sequentially passes through the first water replenishing channel 111 and the third water replenishing channel 112, and finally flows from the water replenishing interface to the internal circulation water path. Since the water replenishing switch 2 is a prior art, the specific structure and working process of the water replenishing switch 2 will not be elaborated.

[0041] Due to the power limitation of the burner of the wall-mounted boiler, a flow-limiting ring is often provided in the main valve body of the existing water inlet valve to limit the maximum water inlet flow. However, the structure of the water replenishing valve is single and the flow rate is constant, and it can only replenish water to the internal circulation water path, resulting in the water inlet valve being unable to provide sufficient water to the water path system of the wall-mounted boiler in time when the water demand at the water-using end of the external circulation water path increases.

[0042] As Figures 1 to 3As shown in the figure, the water replenishing valve of this embodiment further includes an electromagnetic switch 3. A second water replenishing channel 120 is also provided in the water replenishing valve body 1. The first water replenishing channel 111 is communicated with the water inlet channel 410, and the second water replenishing channel 120 is communicated with the confluence channel 42. The electromagnetic switch 3 is installed between the first water replenishing channel 111 and the second water replenishing channel 120 to connect or disconnect the first water replenishing channel 111 and the second water replenishing channel 120. By providing the second water replenishing channel 120 in the water replenishing valve body 1 and communicating the second water replenishing channel 120 with the confluence channel 42. When the water consumption of the external circulation water path of the water inlet valve is small, the electromagnetic switch 3 is closed, and the first water replenishing channel 111 and the second water replenishing channel 120 are disconnected, realizing the small-flow water inlet of the water inlet valve. When the water consumption of the external circulation water path of the water inlet valve is large, the electromagnetic switch 3 is opened, and the first water replenishing channel 111 and the second water replenishing channel 120 are communicated, increasing the water supply from the second water replenishing channel 120 to the water-using end of the external circulation water path, realizing the large-flow water inlet of the water inlet valve, thereby realizing the water volume adjustment of the water inlet valve. The electromagnetic switch 3 can realize the opening and closing of the second water replenishing channel 120 according to the water consumption of the external circulation water path of the water inlet valve, thereby realizing the switching of the large and small water volumes of the water inlet valve.

[0043] Specifically, the water replenishing valve further includes a water replenishing adjusting pipe 12. The second water replenishing channel 120 is provided in the water replenishing adjusting pipe 12, and the second water replenishing channel 120 is arranged side by side with the first water replenishing channel 111, that is, the water replenishing pipe 11 and the water replenishing adjusting pipe 12 are arranged side by side, so that the structure of the water replenishing valve is compact, the volume of the water replenishing valve is reduced, and it is convenient for the installation and use of the water replenishing valve.

[0044] It should be noted that the cross-sectional area of the second water replenishing channel 120 is less than or equal to the cross-sectional area of the first water replenishing channel 111, so that while the second water replenishing channel 120 meets the large-flow water supply, it avoids the diameter of the water replenishing adjusting pipe 12 being too large, resulting in an increase in manufacturing cost and the overall volume of the water replenishing valve, and further improving the compactness of the structure of the water replenishing valve.

[0045] Such as Figure 2 and Figure 3As shown in the figure, a communicating pipe 13 with an opening at the top is arranged in the water replenishing valve body 1. A communicating channel 131 is arranged inside the communicating pipe 13, and a cavity 132 is arranged outside the communicating pipe 13. The first water replenishing channel 111 is communicated with the cavity 132, the communicating channel 131 is communicated with the second water replenishing channel 120, and the cavity 132 and the communicating channel 131 are communicated or cut off by an electromagnetic switch 3. When the electromagnetic switch 3 is closed, the cavity 132 and the communicating channel 131 are cut off, and the water inlet valve supplies water with a small flow rate. When the electromagnetic switch 3 is opened, the first water replenishing channel 111, the cavity 132, the communicating channel 131 and the second water replenishing channel 120 are communicated in sequence, so that a part of the water flow in the water inlet channel 410 flows to the confluence channel 42, and another part of the water flow enters the confluence channel 42 after passing through the first water replenishing channel 111, the cavity 132, the communicating channel 131 and the second water replenishing channel 120, so as to increase the water volume in the confluence channel 42 and realize large-flow water supply. It should be noted that the water flow entering the confluence channel 42 through the second water replenishing channel 120 is the water flow limited by the internal structure (such as a current limiting ring or a current limiting channel) of the main valve body 4. When the second water replenishing channel 120 is closed, this part of the water flow will not enter the confluence channel 42.

[0046] The electromagnetic switch 3 of this embodiment includes an electromagnetic valve 31 and a sealing assembly. The electromagnetic valve 31 includes a valve seat 311 and a valve core 312. The valve seat 311 is installed on the water replenishing valve body 1. The sealing assembly is arranged inside the water replenishing valve body 1. When the electromagnetic valve 31 is powered off, the valve core 312 presses against the sealing assembly so that the sealing assembly plugs the opening of the communicating pipe 13. When the electromagnetic valve 31 is powered on, the valve core 312 is separated from pressing against the sealing assembly. By controlling the opening and closing of the communicating pipe 13 by the electromagnetic valve 31, that is, controlling the communication and isolation between the cavity 132 and the communicating channel 131, the communication and isolation between the first water replenishing channel 111 and the second water replenishing channel 120 are controlled, and the switching of the large and small flow water supply of the water inlet valve is realized.

[0047] Specifically, the electromagnetic valve 31 includes a valve seat 311, a valve core 312 (usually a moving iron core) and a spring 313. The valve seat 311 is hermetically installed on the water replenishing valve body 1. The valve core 312 and the spring 313 are both installed inside the valve seat 311. An electromagnetic coil is arranged inside the valve seat 311. When the electromagnetic valve 31 is powered on, the valve core 312 retracts into the valve seat 311 and compresses the spring 313. After the electromagnetic valve 31 is powered off, the spring 313 resets and pushes the end of the valve core 312 out of the valve seat 311.

[0048] As Figures 2 to 4As shown in the figure, the sealing assembly includes an elastic diaphragm 32 and a sealing seat 33. The circumferential edge of the elastic diaphragm 32 is arranged on the inner side wall of the cavity 132. The sealing seat 33 is installed on the elastic diaphragm 32. When the solenoid valve 31 is de-energized, the valve core 312 presses against the sealing seat 33 to drive the elastic diaphragm 32 to block the opening of the connecting pipe 13. When the solenoid valve 31 is energized, the valve core 312 is disengaged from pressing against the sealing seat 33, and the elastic diaphragm 32 is disengaged from pressing against the opening of the connecting pipe 13. Specifically, the elastic diaphragm 32 is a rubber cup. The circumferential edge of the elastic diaphragm 32 is installed on the inner side wall of the cavity 132 to achieve the sealed installation of the elastic diaphragm 32. At the same time, the elastic diaphragm 32 has good elastic deformation ability to move up and down along the vertical direction in the figure with the sealing seat 33, so that the elastic diaphragm 32 opens or blocks the opening at the top of the connecting pipe 13 to control the connection and isolation between the cavity 132 and the communication channel 131.

[0049] Specifically, as Figure 4 and Figure 5 shown in the figure, the sealing seat 33 includes a seat body 331 and a gas guiding column arranged at the bottom end of the seat body 331. The elastic diaphragm 32 is provided with an installation hole 321, and the gas guiding column passes through and is fixed in the installation hole 321. Three installation holes 321 are provided on the elastic diaphragm 32, so that the number of the gas guiding columns is the same as that of the installation holes 321 and they pass through the three installation holes 321 one by one, so that the sealing seat 33 and the elastic diaphragm 32 are assembled together to ensure the synchronous lifting movement of the sealing seat 33 and the elastic diaphragm 32.

[0050] Further, the gas guiding column includes a first column 332 and a second column 333. A clamping groove 330 for accommodating the elastic diaphragm 32 is formed between the first column 332 and the second column 333 and the seat body 331 respectively. A first column 332 is arranged at the center of the seat body 331. There are two second columns 333, and the two second columns 333 are arranged at intervals along the circumference of the seat body 331. When the elastic diaphragm 32 is accommodated in the clamping groove 330 of the first column 332 and the second column 333, the reliable assembly of the elastic diaphragm 32 and the sealing seat 33 is realized, and at the same time, good sealing performance between the elastic diaphragm 32 and the sealing seat 33 is ensured.

[0051] As Figure 2As shown in the figure, the sealing seat 33 is provided with a sealing hole 3320 penetrating through the seat body 331 and the first column 332. The sealing seat 33 is also provided with an air inlet hole 3330 penetrating through the seat body 331 and the second column 333, so that the first water replenishing channel 111, the air inlet hole 3330 and the cavity 132 are communicated in sequence. When the electromagnetic valve 31 is powered off, the first column 332 extends into the communication channel 131, the second column 333 extends into the cavity 132, and the valve core 312 presses against the seat body 331 and blocks the sealing hole 3320. Specifically, when the electromagnetic valve 31 is powered off, the valve core 312 moves downward under the action of the spring 313 to push the sealing seat 33 and the elastic diaphragm 32 to move downward until the elastic diaphragm 32 presses against the seat body 331 of the sealing seat 33, and the valve core 312 blocks the sealing hole 3320. The water flow in the water inlet channel 410 enters the first water replenishing channel 111. At this time, a closed space is formed in the cavity 132 (that is, the water flow will not enter the cavity 132), and closed spaces also exist in the second water replenishing channel 120 and the communication channel 131. At this time, the pressure above the elastic diaphragm 32 is greater than the pressure below the elastic diaphragm 32, so a negative pressure environment is formed in the communication channel 131 to tightly adsorb the elastic diaphragm 32 at the opening at the top of the communication pipe 13 to ensure reliable blocking of the communication pipe 13, so that the first water replenishing channel 111 is isolated from the second water replenishing channel 120, and small-flow water supply of the water inlet valve is realized.

[0052] As Figure 3 shown in the figure, when the electromagnetic valve 31 is powered on, the valve core 312 squeezes the spring 313 and retracts into the valve seat 311. The valve core 312 is separated from pressing against the seat body 331 of the sealing seat 33, and the sealing hole 3320 is opened. At this time, the first water replenishing channel 111, the cavity 132, the communication channel 131 and the second water replenishing channel 120 are communicated in sequence. At this time, the pressure above the elastic diaphragm 32 is equal to the pressure below the elastic diaphragm 32. Under the push of the water flow in the first water replenishing channel 111, the sealing seat 33 and the elastic diaphragm 32 move upward. The elastic diaphragm 32 is separated from pressing against the communication pipe 13 to open the opening at the top end of the communication pipe 13, so that the first water replenishing channel 111 is communicated with the second water replenishing channel 120. At this time, a part of the water flow in the water inlet channel 410 flows to the confluence channel 42, and another part of the water flow enters the confluence channel 42 after passing through the first water replenishing channel 111, the cavity 132, the communication channel 131 and the second water replenishing channel 120 to increase the water volume in the confluence channel 42, and large-flow water supply of the water inlet valve is realized.

[0053] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Water replenishing valve, installed on the main valve body (4) of the inlet valve, wherein a water inlet channel (410), a confluence channel (42) and a water outlet channel which are communicated in sequence are formed in the main valve body (4), and it is characterized in that, The water replenishing valve includes: A water replenishing valve body (1) having a first water replenishing channel (111) and a second water replenishing channel (120) formed therein. The first water replenishing channel (111) communicates with the water inlet channel (410), and the second water replenishing channel (120) communicates with the confluence channel (42). An electromagnetic switch (3) installed between the first water replenishing channel (111) and the second water replenishing channel (120) to connect or cut off the first water replenishing channel (111) and the second water replenishing channel (120).

2. The water replenishing valve according to claim 1, characterized in that, The second water replenishing channel (120) is arranged side by side with the first water replenishing channel (111).

3. The water replenishing valve according to claim 1, characterized in that, The cross-sectional area of the second water replenishing channel (120) is less than or equal to the cross-sectional area of the first water replenishing channel (111).

4. The water replenishing valve according to any one of claims 1 to 3, characterized in that, A communicating pipe (13) with an opening at the top is arranged in the water replenishing valve body (1). A communicating channel (131) is formed in the communicating pipe (13), and a cavity (132) is formed outside the communicating pipe (13). The first water replenishing channel (111) communicates with the cavity (132), the communicating channel (131) communicates with the second water replenishing channel (120), and the cavity (132) and the communicating channel (131) are connected or cut off by the electromagnetic switch (3).

5. The water replenishing valve according to claim 4, wherein The electromagnetic switch (3) includes: An electromagnetic valve (31) including a valve seat (311) and a valve core (312), and the valve seat (311) is installed on the water replenishing valve body (1). A sealing assembly is arranged in the water replenishing valve body (1). When the electromagnetic valve (31) is powered off, the valve core (312) presses against the sealing assembly to block the opening of the communicating pipe (13). When the electromagnetic valve (31) is powered on, the valve core (312) is disengaged from pressing against the sealing assembly.

6. The water replenishing valve according to claim 5, characterized in that, The sealing assembly includes: An elastic diaphragm (32) whose circumferential edge is arranged on the inner side wall of the cavity (132). A sealing seat (33) is installed on the elastic diaphragm (32). When the electromagnetic valve (31) is powered off, the valve core (312) presses against the sealing seat (33) to drive the elastic diaphragm (32) to block the opening of the communicating pipe (13). When the electromagnetic valve (31) is powered on, the valve core (312) is disengaged from pressing against the sealing seat (33), and the elastic diaphragm (32) is disengaged from pressing against the opening of the communicating pipe (13).

7. The water replenishing valve according to claim 6, characterized in that, The sealing seat (33) includes a seat body (331) and a gas guiding column arranged at the bottom end of the seat body (331). The elastic diaphragm (32) is provided with a mounting hole (321), and the gas guiding column passes through and is fixed in the mounting hole (321).

8. The water replenishing valve according to claim 7, wherein The air guiding column includes a first column (332) and a second column (333). The sealing seat (33) is provided with a sealing hole (3320) penetrating through the seat body (331) and the first column (332), and the sealing seat (33) is further provided with an air inlet hole (3330) penetrating through the seat body (331) and the second column (333), so that the first water replenishing channel (111), the air inlet hole (3330) and the cavity (132) are communicated in sequence; When the electromagnetic valve (31) is powered off, the first column (332) extends into the communication channel (131), and the second column (333) extends into the cavity (132); the valve core (312) presses against the seat body (331) and blocks the sealing hole (3320).

9. The water replenishing valve according to claim 8, wherein, A clamping groove (330) for accommodating the elastic diaphragm (32) is formed between the first column (332) and the second column (333) and the seat body (331) respectively.

10. Water inlet valve, characterized in that, It includes a main valve body (4) and the water replenishing valve according to any one of claims 1 to 9 installed on the main valve body (4).

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