Automatic water replenishing valve

Abstract

The utility model relates to the technical field of valves, and discloses an automatic water replenishing valve. The automatic water replenishing valve comprises a valve body assembly, a valve element assembly and a water replenishing driving assembly, the valve body assembly is provided with a water inlet flow channel, a water outlet flow channel and a sealing opening capable of communicating the water inlet flow channel with the water outlet flow channel, and the valve body assembly is further provided with a first mounting opening communicating with the water outlet flow channel and a second mounting opening communicating with the water inlet flow channel; the water supplementing driving assembly is installed at the first installation opening, the valve element assembly comprises a valve rod and a blocking one-way valve, the blocking one-way valve is installed at the second installation opening, one end of the valve rod is connected with the output end of the water supplementing driving assembly, and the other end of the valve rod penetrates through the sealing opening and abuts against a one-way valve element of the blocking one-way valve; the water supplementing driving assembly can drive the one-way valve element to move in the direction away from the sealing opening through the valve rod so as to communicate the water inlet runner with the water outlet runner. The automatic water replenishing valve is simple in structure, convenient to assemble and good in reliability.

Description

Technical Field

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

[0002] The automatic water filling valve is a common automatic valve in pipelines, mostly installed on the water filling pipeline of a closed-loop heating system or refrigeration system. When the system pressure decreases, the automatic water filling valve will automatically open to fill the system with water. When the set pressure is reached, the automatic water filling valve will automatically close. Therefore, the automatic water filling valve can be used to keep the system pressure at a stable value. For example, wall-mounted boilers, small boilers, and central air-conditioning water systems all use automatic water filling valves to replace traditional water tank filling, thereby effectively simplifying the system structure.

[0003] In the related art, the automatic water filling valve usually includes a manual cut-off assembly, which can press the valve core assembly against the sealing port when the automatic water filling valve fails to cut off the passage between the water inlet and outlet channels to prevent leakage in the system pipeline. However, in the prior art, the structure of the manual cut-off assembly is relatively complex, inconvenient to install, and has poor reliability in use.

[0004] Therefore, it is urgent to propose an automatic water replenishment valve to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an automatic water filling valve which has a simple structure, is easy to assemble and can improve the reliability of the automatic water filling valve.

[0006] As conceived above, the technical solution adopted by the utility model is:

[0007] An automatic water filling valve, comprising:

[0008] A valve body assembly, the valve body assembly having a water inlet flow channel, a water outlet flow channel and a sealing port capable of connecting the water inlet flow channel and the water outlet flow channel, the valve body assembly is also provided with a first mounting port connected to the water outlet flow channel and a second mounting port connected to the water inlet flow channel;

[0009] A water replenishment drive assembly installed at the first installation port;

[0010] A valve core assembly, comprising a valve stem and a blocking one-way valve, wherein the blocking one-way valve is installed at the second installation port, one end of the valve stem is connected to the output end of the water replenishment drive assembly, and the other end of the valve stem passes through the sealing port and abuts against the one-way valve core of the blocking one-way valve; the water replenishment drive assembly can drive the one-way valve core to move away from the sealing port through the valve stem to connect the water inlet channel and the water outlet channel.

[0011] As a preferred solution of the automatic water replenishing valve provided by the utility model, the automatic water replenishing valve also includes a tightening member, which is movably penetrated through the shell of the blocking one-way valve and can be switched between a first position away from the one-way valve core and a second position in which the one-way valve core is pressed against the sealing port.

[0012] As a preferred solution of the automatic water replenishment valve provided by the utility model, the pressing member is threadedly connected to the housing, and rotating the pressing member can make it move along the axial direction of the blocking one-way valve.

[0013] As a preferred solution of the automatic water filling valve provided by the utility model, the water filling drive assembly includes:

[0014] A valve cover is installed at the first installation port, and a pressure regulating chamber is provided in the valve cover;

[0015] A pressure regulating diaphragm is disposed between the first mounting port and the valve cover and can separate the water outlet flow channel from the pressure regulating chamber, and the pressure regulating diaphragm forms an output end of the water replenishment drive assembly;

[0016] The pressure regulating spring is arranged in the pressure regulating cavity in a compressed state, and its two ends are respectively in contact with the valve cover and the pressure regulating diaphragm.

[0017] As a preferred solution of the automatic water replenishing valve provided by the utility model, the water replenishing drive assembly also includes a spring seat and an indication structure. The spring seat is slidably disposed in the pressure regulating chamber and is used to install one end of the pressure regulating spring away from the pressure regulating diaphragm. The indication structure is used to indicate the current position of the spring seat in the pressure regulating chamber.

[0018] As a preferred solution of the automatic water replenishment valve provided by the utility model, the water replenishment drive assembly also includes an adjusting member, which passes through the top of the valve cover and is screwed to the spring seat. Rotating the adjusting member can drive the spring seat to move along the axial direction of the valve cover.

[0019] As a preferred solution of the automatic water replenishing valve provided by the utility model, the automatic water replenishing valve also includes a connecting assembly, which includes a mounting piece and a limiting piece, one end of the mounting piece is sealed and connected to the inlet of the water inlet channel, and the other end of the mounting piece is connected to an external water supply port, and the limiting piece is configured to limit the movement of the mounting piece along its own axial direction.

[0020] As a preferred solution of the automatic water replenishing valve provided by the utility model, two connecting surfaces where the mounting member and the water inlet channel are connected to each other are respectively provided with corresponding first limiting grooves and second limiting grooves, and the first limiting grooves and the second limiting grooves jointly accommodate the limiting member; or

[0021] The inner wall at the inlet of the water inlet channel is provided with a first limiting groove, the limiting member is integrally formed on the outer wall of the mounting member, and can be partially accommodated in the first limiting groove; or

[0022] A second limiting groove is arranged on the outer wall of the mounting member, and the limiting member is integrally formed on the inner wall at the inlet of the water inlet channel and can be partially accommodated in the second limiting groove.

[0023] As a preferred solution of the automatic water replenishment valve provided by the utility model, a water outlet one-way valve is provided at the outlet of the water outlet flow channel.

[0024] As a preferred solution of the automatic water filling valve provided by the utility model, the valve body assembly includes:

[0025] A valve body, the valve body having a water inlet, a water outlet, and a valve cavity located between the water inlet and the water outlet;

[0026] The valve seat is located in the valve cavity and can separate the valve cavity into an upper valve cavity and a lower valve cavity. The upper valve cavity is connected with the water outlet to form the water outlet channel, and the lower valve cavity is connected with the water inlet to form the water inlet channel. The sealing port is arranged on the valve seat.

[0027] The beneficial effects of the utility model are:

[0028] The utility model provides an automatic water filling valve. By arranging a water filling drive component, the water filling drive component can drive the valve stem to drive the one-way valve core of the blocking one-way valve to move in a direction away from the sealing port when the system pipeline needs to be filled with water, so as to open the sealing port, thereby connecting the water inlet flow channel and the water outlet flow channel, thereby realizing the automatic water filling operation; when the water filling operation is completed, the water filling drive component can also drive the valve stem to move in a direction away from the sealing port. At this time, the one-way valve core can be reset to abut against the sealing port, thereby realizing the blocking of the sealing port; by arranging the blocking one-way valve, the overall structure of the automatic water filling valve can be simplified, the assembly and operation are convenient, and the reliability of its use can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the automatic water filling valve provided by an embodiment of the utility model;

[0030] Figure 2 It is a cross-sectional schematic diagram of the automatic water filling valve provided by the embodiment of the utility model;

[0031] Figure 3 yes Figure 2 The local structure of Figure 1 ;

[0032] Figure 4It is a cross-sectional schematic diagram of a valve body assembly provided by an embodiment of the utility model;

[0033] Figure 5 yes Figure 2 The local structure of Figure 2 ;

[0034] Figure 6 It is a structural schematic diagram of a spring seat provided in an embodiment of the utility model;

[0035] Figure 7 It is a structural schematic diagram of the valve cover provided by an embodiment of the utility model;

[0036] Figure 8 yes Figure 2 The local structure of Figure 3 .

[0037] In the figure:

[0038] 100, valve body assembly; 110, valve body; 1101, upper valve cavity; 1102, lower valve cavity; 111, water inlet; 1111, first limiting groove; 112, water outlet; 113, first installation port; 114, second installation port; 120, valve seat; 121, sealing port;

[0039] 200, valve core assembly; 210, valve stem; 220, blocking one-way valve; 221, one-way valve core; 222, housing;

[0040] 300, connecting assembly; 310, mounting member; 311, second limiting groove; 320, limiting member;

[0041] 400, water replenishment drive assembly; 410, valve cover; 411, pressure regulating chamber; 412, observation port; 413, indicator line; 420, pressure regulating diaphragm; 440, spring seat; 4401, connecting hole; 4402, accommodating hole; 4403, indicator protrusion; 450, adjusting member;

[0042] 500, tightening piece;

[0043] 600, water outlet check valve

[0044] 10. Install the seal. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] Figure 1 A schematic structural diagram of the automatic water replenishment valve provided in this embodiment is shown. Figure 2 A cross-sectional schematic diagram of the automatic water replenishment valve provided in this embodiment is shown. Figure 3 Shows Figure 2 The local structure of Figure 1 .like Figure 1-Figure 3As shown, this embodiment provides an automatic water replenishment valve, which includes a valve body assembly 100, a valve core assembly 200 and a water replenishment drive assembly 400. The valve body assembly 100 has an inlet flow channel, an outlet flow channel and a sealing port 121 that can connect the inlet flow channel and the outlet flow channel. The valve body assembly 100 is also provided with a first installation port 113 connected to the outlet flow channel and a second installation port 114 connected to the inlet flow channel; the water replenishment drive assembly 400 is installed at the first installation port 113; the valve The core assembly 200 includes a valve stem 210 and a blocking one-way valve 220. The blocking one-way valve 220 is installed at the second installation port 114. One end of the valve stem 210 is connected to the output end of the water replenishment drive assembly 400, and the other end of the valve stem 210 passes through the sealing port 121 and is against the one-way valve core 221 of the blocking one-way valve 220. The water replenishment drive assembly 400 can drive the one-way valve core 221 to move away from the sealing port 121 through the valve stem 210 to connect the water inlet channel and the water outlet channel.

[0050] The automatic water replenishment valve provided in the present embodiment is provided with a water replenishment drive assembly 400. When the system pipeline needs water replenishment, the water replenishment drive assembly 400 can drive the valve stem 210 to drive the one-way valve core 221 of the sealing one-way valve 220 to move in a direction away from the sealing port 121 to open the sealing port 121, thereby connecting the water inlet channel and the water outlet channel to achieve automatic water replenishment operation; when the water replenishment operation is completed, the water replenishment drive assembly 400 can also drive the valve stem 210 to move in a direction away from the sealing port 121. At this time, the one-way valve core 221 can be reset to abut against the sealing port 121 to achieve the blocking of the sealing port 121; by providing the blocking one-way valve 220, the overall structure of the automatic water replenishment valve can be simplified, the assembly and operation are convenient, and its reliability in use can be improved.

[0051] Furthermore, the manual cut-off assembly 500 further includes a pressing member 500, and the automatic water supply valve further includes a pressing member 500, which is movably arranged in the housing 222 that blocks the one-way valve 220, and can be switched between a first position away from the one-way valve core 221 and a second position where the one-way valve core 221 is pressed against the sealing port 121. During normal operation, the pressing member 500 is in the first position so that the one-way valve core 221 can move in the housing 222, so that when the system pipeline needs to be replenished with water, the water replenishment drive assembly 400 can drive the one-way valve core 221 through the valve stem 210 to open the sealing port 121, thereby realizing the automatic water replenishment operation; when the automatic water supply valve fails and needs maintenance, the operator can switch the pressing member 500 to the second position so that it presses the one-way valve core 221 against the sealing port 121, thereby manually cutting off the passage between the water inlet and water outlet channels, thereby preventing leakage of the system pipeline when the operator is performing maintenance operations.

[0052] Optionally, the tightening member 500 is threadedly connected to the shell body 222. Rotating the tightening member 500 can make it move along the axial direction of the blocking one-way valve 220. The structure is simple and easy to operate. The operator only needs to perform a simple screwing action to achieve the manual cut-off operation between the water inlet channel and the water outlet channel.

[0053] To prevent water in the water inlet channel from leaking from the gap between the blocking check valve 220 and the second installation port 114, in this embodiment, a seal (not shown) is provided between the second installation port 114 and the blocking check valve 220. Optionally, the seal is a rubber seal ring, which has a good sealing effect and a low material cost.

[0054] Figure 4 FIG. 1 is a cross-sectional schematic diagram of the valve body assembly 100 provided in this embodiment. Figure 4 Combined with Figure 2 As shown, the valve body assembly 100 includes a valve body 110 and a valve seat 120, the valve body 110 has a water inlet 111, a water outlet 112 and a valve cavity located between the water inlet 111 and the water outlet 112; the valve seat 120 is located in the valve cavity, and can separate the valve cavity into an upper valve cavity 1101 and a lower valve cavity 1102, the upper valve cavity 1101 is connected with the water outlet 112 to form the above-mentioned water outlet channel, the lower valve cavity 1102 is connected with the water inlet 111 to form the above-mentioned water inlet channel, and the sealing port 121 is arranged on the valve seat 120. When it is necessary to add water to the system pipeline, the water replenishment drive assembly 400 can drive the one-way valve core 221 to move away from the sealing port 121 through the valve stem 210 to connect the water inlet channel and the water outlet channel, so that the water flowing in from the water inlet 111 passes through the lower valve chamber 1102, the sealing port 121, and the upper valve chamber 1101 in sequence and then flows out from the water outlet 112, thereby realizing automatic water replenishment operation; when the water replenishment is completed, the water replenishment drive assembly 400 can also drive the valve stem 210 to move away from the sealing port 121. At this time, the one-way valve core 221 can be reset to abut against the sealing port 121, thereby blocking the sealing port 121, thereby cutting off the passage between the water inlet channel and the water outlet channel.

[0055] Optionally, a water outlet check valve 600 is provided at the outlet of the water outlet flow channel to prevent water in the system pipeline from flowing back into the valve cavity from the water outlet 112. It should be noted that the check valve is a relatively mature technology in the prior art, and the specific structure and working principle of the water outlet check valve 600 and the blocking check valve 220 are not described in detail in this embodiment.

[0056] Figure 5 Shows Figure 2 The local structure of Figure 2 .like Figure 5 Combined with Figure 2As shown, the water replenishment drive assembly 400 includes a valve cover 410, a pressure regulating diaphragm 420 and a pressure regulating spring (not shown in the figure), the valve cover 410 is installed on the first installation port 113, and a pressure regulating chamber 411 is arranged in the valve cover 410; the pressure regulating diaphragm 420 is arranged between the first installation port 113 and the valve cover 410, and can isolate the water outlet channel and the pressure regulating chamber 411, and the end of the valve stem 210 away from the blocking one-way valve 220 is connected to the pressure regulating diaphragm 420; the pressure regulating spring is arranged in the pressure regulating chamber 411 in a compressed state, and the two ends are respectively abutted against the valve cover 410 and the pressure regulating diaphragm 420. The pressure regulating spring is arranged in the pressure regulating chamber 411 of the valve cover 410 in a compressed state so that the pressure regulating spring has a preset preload. When the pressure at the water outlet 112 is less than the pressure at the water inlet 111, the pressure regulating spring can drive the pressure regulating diaphragm 420 and the valve stem 210 connected to the pressure regulating diaphragm 420 to move toward the direction close to the upper valve chamber 1101, so that the one-way valve core 221 opens the sealing port 121, thereby connecting the upper valve chamber 1101 with the lower valve chamber 1102 through the sealing port 121. At this time, the water flowing in from the water inlet 111 can flow through the valve stem 210 in sequence. After the water flows through the lower valve chamber 1102, the sealing port 121 and the upper valve chamber 1101, it flows out from the water outlet 112 to realize the automatic water replenishment operation; when the water replenishment is completed, the pressure of the water outlet 112 increases, and the water in the upper valve chamber 1101 can push the pressure regulating diaphragm 420 to continue to compress the pressure regulating spring, so as to drive the pressure regulating diaphragm 420 and the valve stem 210 connected to the pressure regulating diaphragm 420 to move away from the upper valve chamber 1101, so as to reset the one-way valve core 221 to seal the sealing port 121, so as to cut off the passage between the water inlet flow channel and the water outlet flow channel. It can be understood that the pressure regulating diaphragm 420 is the output end of the water replenishment drive assembly 400.

[0057] In order to adjust the water replenishment pressure value of the automatic water replenishment valve, the water replenishment drive assembly 400 also includes a spring seat 440 and an adjusting member 450. The spring seat 440 is slidably disposed in the pressure regulating chamber 411 and is used to install one end of the pressure regulating spring away from the pressure regulating diaphragm 420. The adjusting member 450 penetrates the valve cover 410 and is threadedly connected to the spring seat 440. Rotating the adjusting member 450 can drive the spring seat 440 to slide along the axis direction of the pressure regulating chamber 411. By rotating the adjusting member 450, the spring seat 440 can be driven to slide along the axis direction of the pressure regulating chamber 411, thereby adjusting the preload force of the pressure regulating spring, and further adjusting the water replenishment pressure value of the automatic water replenishment valve.

[0058] Figure 6 FIG. 4 is a schematic structural diagram of a spring seat 440 provided in this embodiment. Figure 7 FIG. 4 is a schematic diagram showing the structure of the valve cover 410 provided in this embodiment. Figure 6-Figure 7 Combined with Figure 5As shown, the cross-sectional shape of the pressure regulating chamber 411 is non-circular, and the outer contour of the spring seat 440 is the same as the cross-sectional shape of the pressure regulating chamber 411, thereby limiting the rotation of the spring seat 440 relative to the pressure regulating chamber 411. When it is necessary to adjust the water supply pressure value of the automatic water supply valve, the operator can use a screwing tool to rotate the adjusting member 450. Under the limiting effect of the pressure regulating chamber 411 on the spring seat 440, the spring seat 440 can move along the axial direction of the pressure regulating chamber 411, thereby achieving the adjustment of the compression amount of the pressure regulating spring. It should be explained that the non-circular shape can be a polygon such as a triangle or a hexagon, or a regular figure formed by alternating straight lines and curves, or an irregular figure formed by straight lines and curves, or a regular or irregular figure formed by curves and curves. In this embodiment, the adjusting member 450 is an adjusting bolt, and a screw hole connected to the pressure regulating chamber 411 is provided on the top of the valve cover 410. The adjusting bolt passes through the screw hole and is threadedly connected to the spring seat 440, so that it is convenient for the operator to screw the adjusting bolt on the outside of the valve cover 410.

[0059] Alternatively, if Figure 1 , Figure 5 and Figure 6 As shown, the water replenishment drive assembly 400 also includes an indication structure, which is used to indicate the current position of the spring seat 440 in the pressure regulating chamber 411, so as to facilitate the operator to accurately adjust the water replenishment pressure value of the automatic water replenishment valve. Specifically, the indication structure includes an indication line 413 arranged on the valve cover 410 and an indication protrusion 4403 arranged on the spring seat 440. The valve cover 410 is provided with an observation port 412 extending along its axial direction. A plurality of indication lines 413 are arranged at intervals on one side of the observation port 412 along the extension direction of the observation port 412. The operator can observe the current position of the indication protrusion 4403 on the spring seat 440 through the observation port 412, thereby obtaining the current compression amount of the pressure regulating spring, and then realizing accurate adjustment of the preload force of the pressure regulating spring.

[0060] In this embodiment, two groups of indicator lines 413 are respectively provided on both sides of the observation port 412, one group of indicator lines 413 can be used to indicate the current height of the spring seat 440 in the valve cover 410, and the other group of indicator lines 413 can be used to indicate the current water filling pressure value of the automatic water filling valve to facilitate the operator's adjustment.

[0061] like Figure 5 and Figure 6 As shown, a connecting hole 4401 and a receiving hole 4402 arranged around the connecting hole 4401 are provided in the spring seat 440, and an internal thread threadedly matched with the adjusting member 450 is provided on the hole wall of the connecting hole 4401, and the pressure regulating spring is partially received in the receiving hole 4402 to achieve the limitation and installation of the pressure regulating spring.

[0062] Figure 8Shows Figure 2 The local structure of Figure 3 .like Figure 8 Combined with Figure 2 As shown, the automatic water replenishment valve also includes a connecting assembly 300, which is used to connect the water inlet flow channel to the external water supply port of the system pipeline to achieve the connection between the automatic water replenishment valve and the system pipeline. Specifically, the connecting assembly 300 includes a mounting member 310 and a stopper 320, one end of the mounting member 310 is sealed and connected to the inlet of the water inlet flow channel, and the other end of the mounting member 310 is connected to the external water supply port. The stopper 320 is configured to limit the movement of the mounting member 310 along its own axial direction to avoid the connection between the mounting member 310 and the inlet of the water inlet flow channel from loosening, thereby improving the reliability of the use of the automatic water replenishment valve. In addition, before the automatic water replenishment valve leaves the factory, the mounting member 310 is installed at the inlet of the water inlet flow channel through the stopper 320, and does not need to be packaged separately, and the link of connecting the mounting member 310 with the inlet of the water inlet flow channel can be omitted during installation, which saves time and effort and improves assembly efficiency.

[0063] In the first example, the two connecting surfaces of the mounting member 310 and the water inlet flow channel are respectively provided with corresponding first limiting grooves 1111 and second limiting grooves 311, and the first limiting grooves 1111 and second limiting grooves 311 jointly accommodate the limiting member 320, which has a simple structure and is convenient for assembly. To further ensure the limiting effect of the limiting member 320 on the mounting member 310, the limiting member 320 is interference-fitted in the first limiting grooves 1111 and second limiting grooves 311. In this embodiment, the mounting member 310 is a loose nut, and an internal thread is provided on the inner wall at the inlet of the water inlet flow channel. The mounting member 310 is threadedly connected with the internal thread at the inlet of the water inlet flow channel, and the "two connecting surfaces of the mounting member 310 and the water inlet flow channel connected to each other" specifically refers to the outer wall surface of the mounting member 310 and the inner wall surface at the inlet of the water inlet flow channel, wherein the first limiting groove 1111 is provided on the inner wall of the inlet of the water inlet flow channel, and the second limiting groove 311 is provided on the outer wall of the mounting member 310. Of course, in other embodiments, an internal thread can be provided on the inner wall of the mounting member 310, and an external thread can be provided on the outer wall at the inlet of the water inlet channel to realize a threaded connection between the mounting member 310 and the water inlet channel. At this time, "the two connecting surfaces of the mounting member 310 and the water inlet channel connected to each other" specifically refer to the inner wall surface of the mounting member 310 and the outer wall surface at the inlet of the water inlet channel, wherein the first limiting groove 1111 is provided on the outer wall at the inlet of the water inlet channel, and the second limiting groove 311 is provided on the inner wall of the mounting member 310.

[0064] To facilitate the installation of the stopper 320, in this embodiment, the stopper 320 is made of an elastic material. The installation steps of the mounting member 310 and the water inlet channel are: first, the stopper 320 is sleeved in the second stopper groove 311, and then the mounting member 310 is screwed into the inlet of the water inlet channel. Since the stopper 320 is elastic, the stopper 320 can be squeezed into the first stopper groove 1111 during the screwing process, thereby achieving a tight installation of the mounting member 310 and the water inlet channel. Optionally, the stopper 320 is a rubber ring, which has a simple structure, is easy to obtain materials, has a good stopper effect and has a low processing cost.

[0065] In order to ensure the sealing between the mounting member 310 and the water inlet channel, a mounting seal 10 is further provided between the mounting member 310 and the water inlet channel. Optionally, a sealing groove for accommodating the mounting seal 10 is provided on the outer wall of the mounting member 310 to achieve stable installation of the mounting seal 10 and prevent it from falling off. In this embodiment, the mounting seal 10 is a rubber sealing ring, which has a good sealing effect and a low processing cost.

[0066] In the second example, the inner wall at the inlet of the water inlet channel is provided with a first limiting groove 1111, and the limiting member 320 is integrally formed on the outer wall of the mounting member 310 and can be partially accommodated in the first limiting groove 1111. In other words, the mounting member 310 does not need to be provided with a second limiting groove 311, and the limiting member 320 is integrally formed on the mounting member 310 and protrudes from the outer wall of the mounting member 310. When the mounting member 310 is screwed on the water inlet channel, the limiting member 320 can be partially accommodated in the first limiting groove 1111 to achieve the effect of limiting the movement of the mounting member 310 along its own axis direction. Optionally, the limiting member 320 is integrally formed on the mounting member 310 by a vulcanization process.

[0067] In the third example, a second limiting groove 311 is provided on the outer wall of the mounting member 310, and the limiting member 320 is integrally formed on the inner wall at the inlet of the water inlet channel and can be partially accommodated in the second limiting groove 311. In other words, the first limiting groove 1111 does not need to be provided on the inner wall of the water inlet channel, and the limiting member 320 is integrally formed on the inner wall of the water inlet channel and protrudes from the inner wall of the water inlet channel. When the mounting member 310 is screwed on the water inlet channel, the limiting member 320 can be partially accommodated in the second limiting groove 311 to achieve the effect of limiting the movement of the mounting member 310 along its own axis direction. Optionally, the limiting member 320 is integrally formed on the inner wall of the water inlet channel by a vulcanization process.

[0068] Among them, in the second example and the third example, by using a vulcanization process to integrally form the limit member 320 on the inner wall of the mounting member 310 or the water inlet channel, the step of assembling the limit member 320 with the mounting member 310 or the water inlet channel is saved, thereby further improving the assembly efficiency between the mounting member 310 and the water inlet channel.

[0069] The above embodiments are only to 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, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic water supply valve, characterized in that: include: A valve body assembly (100), the valve body assembly (100) comprising a water inlet flow channel, a water outlet flow channel, and a sealing port (121) capable of connecting the water inlet flow channel and the water outlet flow channel, the valve body assembly (100) also being provided with a first mounting port (113) connected to the water outlet flow channel, and a second mounting port (114) connected to the water inlet flow channel; A water replenishment drive assembly (400) installed at the first installation opening (113); A valve core assembly (200), comprising a valve stem (210) and a blocking one-way valve (220); the blocking one-way valve (220) is installed at the second installation port (114); one end of the valve stem (210) is connected to the output end of the water replenishment drive assembly (400); the other end of the valve stem (210) passes through the sealing port (121) and abuts against the one-way valve core (221) of the blocking one-way valve (220); the water replenishment drive assembly (400) can drive the one-way valve core (221) to move in a direction away from the sealing port (121) through the valve stem (210) to connect the water inlet flow channel with the water outlet flow channel; A tightening member (500) is movably disposed in a housing (222) of the blocking one-way valve (220) and is switchable between a first position away from the one-way valve core (221) and a second position where the one-way valve core (221) is pressed against the sealing port (121). The tightening member (500) is threadedly connected to the housing (222), and rotation of the tightening member (500) enables it to move along the axial direction of the blocking one-way valve (220).

2. The automatic water supply valve according to claim 1, characterized in that: The water replenishment drive assembly (400) comprises: A valve cover (410) is installed at the first installation opening (113), and a pressure regulating chamber (411) is provided in the valve cover (410); A pressure regulating diaphragm (420) is arranged between the first installation port (113) and the valve cover (410) and is capable of isolating the water outlet flow channel and the pressure regulating chamber (411); the pressure regulating diaphragm (420) forms an output end of the water replenishment drive assembly (400); A pressure regulating spring is arranged in the pressure regulating chamber (411) in a compressed state, and its two ends are respectively in contact with the valve cover (410) and the pressure regulating diaphragm (420).

3. The automatic water supply valve according to claim 2, characterized in that: The water replenishment drive assembly (400) further comprises a spring seat (440) and an indication structure; the spring seat (440) is slidably disposed in the pressure regulating chamber (411) and is used to mount an end of the pressure regulating spring away from the pressure regulating diaphragm (420); and the indication structure is used to indicate the current position of the spring seat (440) in the pressure regulating chamber (411).

4. The automatic water supply valve according to claim 3, characterized in that: The water replenishment drive assembly (400) further comprises an adjusting member (450), wherein the adjusting member (450) passes through the top of the valve cover (410) and is screwed to the spring seat (440), and rotation of the adjusting member (450) can drive the spring seat (440) to move along the axial direction of the valve cover (410).

5. The automatic water supply valve according to claim 1, characterized in that: The automatic water replenishment valve further comprises a connection assembly (300), wherein the connection assembly (300) comprises a mounting member (310) and a limiting member (320), wherein one end of the mounting member (310) is sealedly connected to the inlet of the water inlet flow channel, and the other end of the mounting member (310) is connected to an external water supply port, and the limiting member (320) is configured to limit the movement of the mounting member (310) along its own axial direction.

6. The automatic water supply valve according to claim 5, characterized in that: A corresponding first limiting groove (1111) and a second limiting groove (311) are respectively provided on two connecting surfaces where the mounting member (310) and the water inlet channel are connected to each other, and the first limiting groove (1111) and the second limiting groove (311) jointly accommodate the limiting member (320); or The inner wall at the inlet of the water inlet channel is provided with a first limiting groove (1111), and the limiting member (320) is integrally formed on the outer wall of the mounting member (310) and can be partially accommodated in the first limiting groove (1111); or A second limiting groove (311) is provided on the outer wall of the mounting member (310), and the limiting member (320) is integrally formed on the inner wall at the inlet of the water inlet channel and can be partially accommodated in the second limiting groove (311).

7. The automatic water supply valve according to any one of claims 1 to 6, characterized in that: A water outlet one-way valve (600) is provided at the outlet of the water outlet flow channel.

8. The automatic water supply valve according to any one of claims 1 to 6, characterized in that: The valve body assembly (100) comprises: A valve body (110), the valve body (110) comprising a water inlet (111), a water outlet (112), and a valve cavity located between the water inlet (111) and the water outlet (112); The valve seat (120) is located in the valve cavity and can separate the valve cavity into an upper valve cavity (1101) and a lower valve cavity (1102); the upper valve cavity (1101) is connected to the water outlet (112) to form the water outlet channel; the lower valve cavity (1102) is connected to the water inlet (111) to form the water inlet channel; and the sealing port (121) is arranged on the valve seat (120).

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