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 connecting assembly. The valve body assembly is provided with a water inlet runner, a water outlet runner and a sealing opening capable of communicating the water inlet runner with the water outlet runner. The valve element assembly is movably arranged in the valve body assembly in a penetrating mode and can selectively open or block the sealing opening. The connecting assembly comprises a mounting part and a limiting part, one end of the mounting part is hermetically connected to an inlet of the water inlet runner, the other end of the mounting part is connected with an external water supply port, and the limiting part is configured to limit the mounting part to move in the axis direction of the mounting part. According to the automatic water replenishing valve, looseness of the mounting piece and the water inlet of the automatic water replenishing valve can be avoided, the use reliability of the automatic water replenishing valve is improved, and packaging and mounting can be facilitated.

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 water inlet of the automatic water filling valve is usually connected to the water filling pipeline system through a union nut, one end of the union nut is threadedly connected to the water inlet of the automatic water filling valve, and the other end of the union nut is threadedly connected to the water supply port of the water filling pipeline system. During transportation, the union nut needs to be packaged separately, and during installation, the union nut needs to be connected to the water inlet of the automatic water filling valve first, which is time-consuming and laborious; and there is a risk that the union nut and the water inlet of the automatic water filling valve will loosen.

[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 supply valve, which can prevent the loosening of the union nut and the water inlet of the automatic water supply valve, improve the reliability of the use of the automatic water supply valve, and facilitate packaging and installation.

[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;

[0009] A valve core assembly, which can be movably inserted into the valve body assembly and can selectively open or block the sealing port;

[0010] The connection assembly includes a mounting member and a limiting member, wherein one end of the mounting member is sealed and connected to the inlet of the water inlet channel, and the other end of the mounting member is connected to an external water supply port, and the limiting member is configured to limit the movement of the mounting member along its own axial direction.

[0011] As a preferred solution of the automatic water replenishing valve provided by the utility model, corresponding first limiting grooves and second limiting grooves are respectively arranged on the two connecting surfaces where the mounting piece and the water inlet channel are connected to each other, and the first limiting groove and the second limiting groove jointly accommodate the limiting piece.

[0012] As a preferred solution of the automatic water replenishing valve provided by the utility model, the limiting member is interference-fitted in the first limiting groove and the second limiting groove.

[0013] As a preferred solution of the automatic water replenishing valve provided by the utility model, the limiting member is made of elastic material.

[0014] As a preferred solution of the automatic water replenishing valve provided by the utility model, a first limiting groove is provided on the inner wall at the inlet of the water inlet flow channel, and 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

[0015] 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.

[0016] As a preferred solution of the automatic water replenishing valve provided by the utility model, a through hole is provided on the side wall of the water inlet channel near its inlet, a locking hole corresponding to the through hole is provided on the mounting member, and the limiting member can be sealed and penetrated through the through hole and connected to the locking hole.

[0017] As a preferred solution of the automatic water replenishment valve provided by the utility model, a first installation port connected to the water outlet channel is provided on the valve body assembly, and the automatic water replenishment valve also includes a water replenishment drive assembly, which is installed at the first installation port and is configured to drive the valve core assembly to move in the valve body assembly.

[0018] As a preferred solution of the automatic water replenishment valve provided by the utility model, the valve core assembly includes:

[0019] A valve stem, one end of which is connected to the output end of the water replenishment drive assembly;

[0020] The other end of the valve stem passes through the sealing port and is connected to the sealing portion. The valve stem can drive the sealing portion to approach or move away from the sealing port under the driving action of the water replenishment drive assembly.

[0021] As a preferred solution of the automatic water replenishment valve provided by the utility model, the valve stem and the sealing part are an integrated structure.

[0022] As a preferred solution of the automatic water filling valve provided by the utility model, the water filling drive assembly includes:

[0023] A valve cover is installed at the first installation port, and a pressure regulating chamber is provided in the valve cover;

[0024] A pressure regulating diaphragm is arranged between the first mounting port and the valve cover and can separate the water outlet flow channel from the pressure regulating chamber, and one end of the valve core assembly is connected to the pressure regulating diaphragm;

[0025] 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.

[0026] 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.

[0027] As a preferred solution of the automatic water filling valve provided by the utility model, the valve body assembly includes:

[0028] 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;

[0029] 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.

[0030] As a preferred solution of the automatic water filling valve provided by the utility model, the valve body assembly is provided with a second installation port connected to the water inlet flow channel, and the automatic water filling valve further includes a manual cut-off assembly, which is installed at the second installation port, and the manual cut-off assembly can be switched between a first position and a second position;

[0031] When the manual cut-off assembly is in the first position, the manual cut-off assembly can press the valve core assembly against the sealing port; when the manual cut-off assembly is in the second position, the valve core assembly can be slidably inserted into the manual cut-off assembly.

[0032] The beneficial effects of the utility model are:

[0033] The utility model provides an automatic water filling valve, wherein a mounting piece is used to realize the connection between the automatic water filling valve and an external piping system, thereby realizing the automatic water filling operation of the automatic water filling valve to the external piping system; by arranging a limit piece to limit the movement of the mounting piece along its own axial direction, loosening of the connection between the mounting piece and the inlet of a water inlet flow channel can be avoided, thereby improving the reliability of the use of the automatic water filling valve; in addition, before the automatic water filling valve leaves the factory, the mounting piece is installed on the inlet of the water inlet flow channel through the limit piece, and does not need to be packaged separately, and the link of connecting the mounting piece with the inlet of the water inlet flow channel can be omitted during installation, which saves time and effort and can improve assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the automatic water filling valve provided by an embodiment of the utility model;

[0035] Figure 2 It is a cross-sectional schematic diagram of the automatic water filling valve provided by the embodiment of the utility model;

[0036] Figure 3 yes Figure 2 The local structure of Figure 1 ;

[0037] Figure 4 It is a cross-sectional schematic diagram of a valve body assembly provided by an embodiment of the utility model;

[0038] Figure 5 yes Figure 2 The local structure of Figure 2 ;

[0039] Figure 6 It is a structural schematic diagram of a spring seat provided in an embodiment of the utility model;

[0040] Figure 7 It is a structural schematic diagram of the valve cover provided in an embodiment of the utility model.

[0041] In the figure:

[0042] 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;

[0043] 200, valve core assembly; 210, valve stem; 220, sealing portion; 230, blocking member;

[0044] 300, connecting assembly; 310, mounting member; 311, second limiting groove; 320, limiting member;

[0045] 400, water replenishment drive assembly; 410, valve cover; 411, pressure regulating chamber; 412, observation port; 413, indicator line; 420, pressure regulating diaphragm; 430, pressure regulating spring; 440, spring seat; 4401, connecting hole; 4402, accommodating hole; 4403, indicator protrusion; 450, adjusting member;

[0046] 500, manual cutting assembly; 510, cutting ejector rod; 5101, guide hole; 520, knob;

[0047] 600, one-way valve;

[0048] 10. First sealing member; 20. Second sealing member. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] Embodiment 1

[0054] Figure 1 A schematic structural diagram of the automatic water replenishment valve provided in this embodiment is shown. Figure 2 FIG. 2 shows a cross-sectional schematic diagram of the automatic water filling valve provided in this embodiment. Figure 1-Figure 2 As shown, this embodiment provides an automatic water replenishing valve, which includes a valve body assembly 100, a valve core assembly 200 and a connecting assembly 300, the valve body assembly 100 has an inlet channel, an outlet channel and a sealing port 121 that can connect the inlet channel and the outlet channel; the valve core assembly 200 can be movably inserted into the valve body assembly 100, and can selectively open or block the sealing port 121; the connecting assembly 300 includes a mounting member 310 and a limiting member 320, one end of the mounting member 310 is sealed and connected to the inlet of the water inlet channel, and the other end of the mounting member 310 is connected to the 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.

[0055] The automatic water replenishment valve provided in this embodiment has a mounting member 310 used to connect the automatic water replenishment valve to an external piping system, thereby realizing the automatic water replenishment operation of the automatic water replenishment valve to the external piping system; by providing a limit member 320 to limit the movement of the mounting member 310 along its own axial direction, loosening of the connection between the mounting member 310 and the inlet of the water inlet channel can be avoided, 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 channel through the limit member 320, and does not need to be packaged separately, and the step of connecting the mounting member 310 to the inlet of the water inlet channel can be omitted during installation, which saves time and effort and can improve assembly efficiency.

[0056] Figure 3 Shows Figure 2 The local structure of Figure 1 .like Figure 3 Combined with Figure 2As shown, the two connecting surfaces of the mounting member 310 and the water inlet 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 the second limiting grooves 311.

[0057] In this embodiment, the mounting member 310 is a flexible nut, and an internal thread is provided on the inner wall at the inlet of the water inlet channel. The mounting member 310 is threadedly connected to the internal thread at the inlet of the water inlet channel, and the "two connecting surfaces of the mounting member 310 and the water inlet channel connected to each other" specifically refer to the outer wall surface of the mounting member 310 and the inner wall surface at the inlet of the water inlet channel, wherein the first limiting groove 1111 is provided on the inner wall of the inlet of the water inlet 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.

[0058] 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.

[0059] In order to ensure the sealing between the mounting member 310 and the water inlet channel, a first sealing member 10 is further provided between the mounting member 310 and the water inlet channel. Optionally, a sealing groove for accommodating the first sealing member 10 is provided on the outer wall of the mounting member 310 to achieve stable installation of the first sealing member 10 and prevent it from falling off. In this embodiment, the first sealing member 10 is a rubber sealing ring, which has a good sealing effect and a low processing cost.

[0060] Figure 4 FIG. 1 is a cross-sectional schematic diagram of a valve body assembly 100 provided by the present invention. Figure 4 Combined with Figure 2As 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 valve core assembly 200 can open the sealing port 121 to allow the water flowing in from the water inlet 111 to pass through the lower valve chamber 1102, the sealing port 121, and the upper valve chamber 1101 in sequence and then flow out from the water outlet 112, thereby realizing automatic water replenishment operation; when the water replenishment is completed, the valve core assembly 200 moves to seal the sealing port 121, thereby cutting off the connection between the water inlet channel and the water outlet channel.

[0061] Optionally, a one-way valve 600 is further provided at the water outlet 112 to prevent water in the system pipeline from flowing back into the valve cavity from the water outlet 112. The one-way valve 600 is a relatively mature technology in the prior art, and the specific structure and working principle of the one-way valve 600 are not described in detail in this embodiment.

[0062] In order to realize the automatic water replenishment operation, the automatic water replenishment valve further includes a water replenishment drive assembly 400. The valve body assembly 100 is provided with a first installation port 113 connected to the water outlet flow channel. The water replenishment drive assembly 400 is installed at the first installation port 113 and is configured to drive the valve core assembly 200 to move in the valve body assembly 100, thereby realizing the connection and disconnection between the water inlet flow channel and the water outlet flow channel. In this embodiment, the first installation port 113 is opened on the valve body 110, and the first installation port 113 is connected to the upper valve cavity 1101.

[0063] Specifically, the valve core assembly 200 includes a valve stem 210 and a sealing portion 220. 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 is connected to the sealing portion 220. The valve stem 210 can drive the sealing portion 220 to move closer to or away from the sealing port 121 under the driving action of the water replenishment drive assembly 400. When the system pipeline needs to be replenished with water, the water replenishment drive assembly 400 can drive the valve stem 210 to move downward to drive the sealing portion 220 away from the sealing port 121, thereby achieving communication between the water inlet channel and the water outlet channel; when the water replenishment operation is completed, the water replenishment drive assembly 400 can also drive the valve stem 210 to move upward to drive the sealing portion 220 to press against the sealing port 121, thereby achieving the cutoff between the water inlet channel and the water outlet channel. Among them, the above-mentioned "above and below" both refer to the automatic water replenishment valve in such as Figure 2 Above and below the state shown.

[0064] Optionally, the valve stem 210 and the sealing portion 220 are an integrated structure, and the water replenishment drive assembly 400 can directly drive the valve core assembly 200 to move up and down. The setting of a reset member in the related technology for resetting the valve core assembly 200 after completing the water replenishment operation can be omitted, so as to simplify the structure of the automatic water replenishment valve and reduce processing costs.

[0065] Optionally, a blocking member 230 is sleeved on the sealing portion 220, and the blocking member 230 can cooperate with the sealing portion 220 to seal the sealing opening 121. In this embodiment, the blocking member 230 is a rubber ring to improve the sealing effect between the sealing portion 220 and the sealing opening 121.

[0066] Figure 5 Shows Figure 2 The local structure of Figure 2 .like Figure 5 Combined with Figure 2 As shown, the water replenishment drive assembly 400 includes a valve cover 410, a pressure regulating diaphragm 420 and a pressure regulating spring 430. 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 from the pressure regulating chamber 411, and one end of the valve core assembly 200 is connected to the pressure regulating diaphragm 420; the pressure regulating spring 430 is arranged in a compressed state in the pressure regulating chamber 411, and its two ends are respectively abutted against the valve cover 410 and the pressure regulating diaphragm 420. The pressure regulating spring 430 is arranged in the pressure regulating chamber 411 of the valve cover 410 in a compressed state, so that the pressure regulating spring 430 has a preset preload force. When the pressure at the water outlet 112 is less than the pressure at the water inlet 111, the pressure regulating spring 430 can drive the pressure regulating diaphragm 420 and the valve core assembly 200 connected to the pressure regulating diaphragm 420 to move toward the upper valve chamber 1101 to open the sealing port 121, so that the upper valve chamber 1101 and the lower valve chamber 1102 are connected through the sealing port 121. At this time, the water flowing in from the water inlet 111 can be sequentially passed through the valve body 1101. After passing through the lower valve chamber 1102, the sealing port 121 and the upper valve chamber 1101, the water 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 430, so as to drive the pressure regulating diaphragm 420 and the valve core assembly 200 connected to the pressure regulating diaphragm 420 to move away from the upper valve chamber 1101, so that the valve core assembly 200 seals the sealing port 121 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 forms the output end of the water replenishment drive assembly 400.

[0067] 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 430 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 430, and further adjusting the water replenishment pressure value of the automatic water replenishment valve.

[0068] 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 5 As 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 430. 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.

[0069] Alternatively, if Figure 1 , Figure 5 and Figure 6As 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 430, and then realizing accurate adjustment of the preload force of the pressure regulating spring 430.

[0070] 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.

[0071] 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 430 is partially received in the receiving hole 4402 to achieve the limitation and installation of the pressure regulating spring 430.

[0072] Continue as Figure 2 As shown, the automatic water supply valve further includes a manual cut-off assembly 500. The valve body assembly 100 is provided with a second installation port 114 connected to the water inlet flow channel. The manual cut-off assembly 500 is installed at the second installation port 114. The manual cut-off assembly 500 can be switched between a first position and a second position. When the manual cut-off assembly 500 is in the first position, the manual cut-off assembly 500 can press the valve core assembly 200 against the sealing port 121. When the manual cut-off assembly 500 is in the second position, the valve core assembly 200 can be slidably inserted into the manual cut-off assembly 500. In this embodiment, the second installation port 114 is opened on the valve body 110 and is connected to the lower valve chamber 1102.

[0073] Specifically, the manual cut-off assembly 500 includes a cut-off push rod 510 and a knob 520. The cut-off push rod 510 is threadedly connected to the second mounting port 114. A guide hole 5101 is provided at one end of the cut-off push rod 510 close to the valve core assembly 200. One end of the valve stem 210 away from the water replenishment drive assembly 400 is slidably penetrated in the guide hole 5101. The knob 520 is fixed to the end of the cut-off push rod 510 extending out of the second mounting port 114. When it is necessary to manually cut off the water inlet and outlet channels, the operator turns the knob 520 to drive the cut-off push rod 510 to rotate and move it upward along its own axis relative to the valve body 110. When the cut-off push rod 510 moves to the point where the valve stem 210 is pressed against the bottom of the guide hole 5101, the passage between the water inlet and outlet channels is manually cut off.

[0074] Optionally, a second sealing member 20 is further provided between the cutting top rod 510 and the second mounting opening 114 to achieve sealing therebetween and prevent water from flowing out of the gap between the cutting top rod 510 and the second mounting opening 114. In this embodiment, the second sealing member 20 is a rubber ring, which has a good sealing effect and a low material cost.

[0075] Embodiment 2

[0076] This embodiment provides an automatic water replenishing valve, which has a substantially similar structure to the automatic water replenishing valve in the first embodiment, except that the matching mode of the limiting member 320 and the mounting member 310 is different.

[0077] Specifically, in one 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.

[0078] In another example, the outer wall of the mounting member 310 is provided with a second limiting groove 311, 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 inner wall of the water inlet channel does not need to be provided with the first limiting groove 1111, 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.

[0079] In the automatic water filling valve provided in this embodiment, the limit member 320 can be integrally formed on the inner wall of the mounting member 310 or the water inlet channel by using a vulcanization process, thereby saving the step of assembling the limit member 320 with the mounting member 310 or the water inlet channel and further improving the assembly efficiency between the mounting member 310 and the water inlet channel.

[0080] Embodiment 3

[0081] This embodiment provides an automatic water replenishing valve, which has a substantially similar structure to the automatic water replenishing valve in the first embodiment, except that the structure of the connecting assembly 300 is different.

[0082] Specifically, a through hole is provided on the side wall of the water inlet channel near its inlet, a locking hole corresponding to the through hole is provided on the mounting member 310, and the limiter 320 can be sealed and penetrated in the through hole and connected in the locking hole. When assembling the valve body assembly 100 and the connection assembly 300, the mounting member 310 can be screwed into the water inlet channel first, and then the limiter 320 can be passed through the through hole and connected in the locking hole to achieve the limiting effect on the mounting member 310. Optionally, the through hole is a through hole, the locking hole can be a threaded hole, and the limiter 320 is a bolt. The bolt connection has the advantages of tight connection and convenient disassembly. It should be noted that there are two ways to process the locking hole: 1) The locking hole is not connected to the inner hole of the mounting member 310, which can effectively prevent water at the water inlet 111 from leaking from the locking hole; 2) The locking hole is connected to the inner hole of the mounting member 310. At this time, the limit member 320 needs to be sealed with the locking hole to prevent water at the water inlet 111 from leaking from the locking hole.

[0083] Optionally, a limiting seal is provided between the penetration hole and the limiting member 320 to ensure the sealing between the mounting member 310 and the water inlet channel, thereby preventing water in the water inlet channel from leaking.

[0084] It should be noted that in this embodiment, since the limit member 320 needs to be unlocked and assembled outside the mounting member 310, the automatic water filling valve provided in this embodiment needs to consider the installation space when installing to facilitate the operator to operate the limit member 320.

[0085] 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; A valve core assembly (200) is movably disposed in the valve body assembly (100) and is capable of selectively opening or blocking the sealing port (121); 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 channel, 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.

2. The automatic water supply valve according to claim 1, characterized in that: The two connecting surfaces of the mounting member (310) and the water inlet channel connected to each other are respectively provided with corresponding first limiting grooves (1111) and second limiting grooves (311), and the first limiting grooves (1111) and the second limiting grooves (311) jointly accommodate the limiting member (320).

3. The automatic water supply valve according to claim 2, characterized in that: The limiting member (320) is interference-fitted in the first limiting groove (1111) and the second limiting groove (311).

4. The automatic water supply valve according to claim 2, characterized in that: The limiting member (320) is made of elastic material.

5. The automatic water supply valve according to claim 1, characterized in that: 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).

6. The automatic water supply valve according to claim 1, characterized in that: A through hole is provided on the side wall of the water inlet channel near its inlet, a locking hole corresponding to the through hole is provided on the mounting member (310), and the limiting member (320) can be sealingly penetrated through the through hole and connected to the locking hole.

7. The automatic water supply valve according to any one of claims 1 to 6, characterized in that: The valve body assembly (100) is provided with a first installation port (113) connected to the water outlet flow channel. The automatic water replenishment valve also includes a water replenishment drive assembly (400). The water replenishment drive assembly (400) is installed in the first installation port (113) and is configured to drive the valve core assembly (200) to move in the valve body assembly (100).

8. The automatic water supply valve according to claim 7, characterized in that: The valve core assembly (200) comprises: A valve stem (210), one end of which 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 is connected to the sealing portion (220); the valve stem (210) can drive the sealing portion (220) to move closer to or away from the sealing port (121) under the driving action of the water replenishment drive assembly (400).

9. The automatic water supply valve according to claim 8, characterized in that: The valve stem (210) and the sealing portion (220) are an integrated structure.

10. The automatic water supply valve according to claim 7, characterized in that: The water replenishment drive assembly (400) comprises: A valve cover (410) is installed at the first installation port (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); one end of the valve core assembly (200) is connected to the pressure regulating diaphragm (420); The pressure regulating spring (430) 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).

11. The automatic water supply valve according to claim 10, 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 install an end of the pressure regulating spring (430) away from the pressure regulating diaphragm (420). The indication structure is used to indicate the current position of the spring seat (440) in the pressure regulating chamber (411).

12. 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; the sealing port (121) is arranged on the valve seat (120).

13. The automatic water supply valve according to any one of claims 1 to 6, characterized in that: The valve body assembly (100) is provided with a second mounting port (114) connected to the water inlet flow channel, and the automatic water supply valve further comprises a manual cut-off assembly (500), the manual cut-off assembly (500) is installed at the second mounting port (114), and the manual cut-off assembly (500) can be switched between a first position and a second position; When the manual cut-off assembly (500) is in the first position, the manual cut-off assembly (500) can press the valve core assembly (200) against the sealing port (121); when the manual cut-off assembly (500) is in the second position, the valve core assembly (200) can be slidably inserted into the manual cut-off assembly (500).

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