Anti-siphon assembly and valve

Abstract

The utility model relates to an anti-siphon assembly and a valve, and the anti-siphon assembly comprises a gland connected to an adjusting port; the adjusting part comprises a first connecting part, an abutting part and a second connecting part which are connected in sequence, the first connecting part is rotationally connected to the gland, the abutting part is arranged in a protruding mode in the radial direction of the adjusting part, and the second connecting part is inserted into the anti-siphon hole; the movable part is connected to the second connecting part in a sleeving mode and limited by the abutting part, and the movable part is located in the still water cavity and can move along the second connecting part in a reciprocating mode; the elastic piece is connected to the adjusting piece in a sleeved mode and located between the movable piece and the gland. According to the technical scheme, the technical problems that a traditional valve is complex in structure, large in size and high in production cost are effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of valve equipment, and in particular to an anti-siphon component and a valve. Background Art

[0002] Traditional solenoid valves are generally equipped with a flow regulating structure to adjust the flushing flow to avoid wasting water resources; at the same time, in order to prevent the solenoid valve from sucking water back from the toilet when it is closed, an anti-siphon structure is also provided on the solenoid valve to maintain the pressure balance inside and outside the solenoid valve to prevent back suction. In the related art, the flow regulating structure and the anti-siphon structure on the traditional solenoid valve are independently provided, which makes the structure of the entire solenoid valve complex, occupies a large space, and has high production costs. Utility Model Content

[0003] The present application provides an anti-siphon assembly and a valve component to solve the technical problems of complex structure, large volume and high production cost of traditional valve components.

[0004] To this end, on the first aspect, an embodiment of the present application provides an anti-siphon assembly for a valve member, the valve member is provided with an adjusting port, a static water chamber and an anti-siphon hole located inside the valve member, the anti-siphon hole is connected to the adjusting port through the static water chamber, the anti-siphon assembly comprises: a pressure cover connected to the adjusting port; an adjusting member, comprising a first connecting portion, a stop portion and a second connecting portion connected in sequence, the first connecting portion being rotatably connected to the pressure cover, the stop portion being arranged to protrude radially along the adjusting member, and the second connecting portion being plugged into the anti-siphon hole; a movable member, sleeved on the second connecting portion and restricted by the stop portion, the movable member being located in the static water chamber and being able to reciprocate along the second connecting portion; and an elastic member, sleeved on the adjusting member and located between the movable member and the pressure cover.

[0005] In a possible embodiment, a water inlet chamber is provided in the valve member, the water inlet chamber is connected with the static water chamber through the anti-siphon hole, a connecting piece is provided in the water inlet chamber, and the adjusting member also includes a third connecting portion, the third connecting portion is connected to an end of the second connecting portion away from the stop portion, and the third connecting portion is threadedly connected to the connecting piece.

[0006] In a possible implementation manner, a groove cooperating with the screwing member is provided on a side of the first connecting portion away from the stop portion; and / or,

[0007] A handle is arranged on one side of the first connecting portion away from the stopping portion.

[0008] In a possible implementation manner, the adjusting member further includes a first sealing portion, and the first sealing portion is disposed between the first connecting portion and the pressure cover.

[0009] In a possible implementation, a plurality of annular grooves are provided on the outer wall of the first connecting portion, and the plurality of annular grooves are spaced apart along the axial direction of the adjusting member. A plurality of first sealing portions are provided, and one first sealing portion is correspondingly provided in one annular groove.

[0010] In a possible embodiment, the pressure cover includes a cover body and a connecting tube inserted into the cover body, the cover body is threadedly connected to the adjustment port, one end of the connecting tube extends out of the valve member, the elastic member is sleeved on the other end of the connecting tube, and the adjustment member is movably connected in the connecting tube.

[0011] In a possible implementation manner, the pressure cover further includes a second sealing portion, and the second sealing portion is disposed between the cover body and the regulating port.

[0012] In a possible implementation manner, the pressure cover further includes a rotating ear provided between the cover body and the connecting tube, and the rotating ear is located outside the regulating port.

[0013] In a possible implementation manner, the anti-siphon assembly further includes a filter element, which is sleeved on the outside of the elastic element and the movable element and is located between the pressure cover and the anti-siphon hole.

[0014] In the second aspect, the present application also provides a valve component, including a valve body, a water outlet control assembly and the anti-siphon assembly as described above, the valve body is provided with an adjusting port, a static water cavity, an anti-siphon hole located inside the valve body, a water outlet cavity, a switch port and a water outlet through-hole located inside the valve body, the water outlet through-hole connects the static water cavity and the water outlet cavity, one end of the water outlet control assembly is connected to the switch port, and the other end is connected to the water outlet through-hole, the anti-siphon hole is connected to the adjusting port through the static water cavity, the pressure cover of the anti-siphon assembly is connected to the adjusting port, and one end of the adjusting component of the anti-siphon assembly is inserted into the anti-siphon hole.

[0015] According to the anti-siphon assembly and valve member provided in the embodiment of the present application, the anti-siphon assembly includes: a pressure cap connected to the regulating port; an regulating member including a first connecting portion, a stopper portion and a second connecting portion connected in sequence, the first connecting portion being rotatably connected to the pressure cap, the stopper portion being arranged along the radial protrusion of the regulating member, and the second connecting portion being plugged into the anti-siphon hole; a movable member being sleeved on the second connecting portion and restricted by the stopper portion, the movable member being located in the static water cavity and being reciprocatingly movable along the second connecting portion; and an elastic member being sleeved on the regulating member and being located between the movable member and the pressure cap. The technical solution of the present application utilizes the regulating member and the elastic member to jointly realize the position control of the movable member, so as to realize the anti-siphon function and the flushing flow regulating function. Specifically, when the valve is in a closed state, the static water in the static water chamber makes the movable part fit to the anti-siphon hole, and then the elastic part and the negative pressure at the water inlet of the valve are used to firmly adsorb the movable part to the anti-siphon hole, so as to close the anti-siphon hole and achieve the anti-siphon effect; at the same time, when the valve is in an open state, the movable part on the anti-siphon hole is first flushed open to the stopper by flushing water, and then the position between the stopper and the anti-siphon hole is adjusted to adjust the flushing flow rate. In this way, the anti-siphon function and flow adjustment function of the valve are integrated in this embodiment, which simplifies the overall structure of the valve, reduces the occupied space, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments that conform to the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can also be obtained based on these drawings without paying creative labor. One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a proportional limitation.

[0017] Figure 1 An exploded view of a valve member provided in an embodiment of the present application;

[0018] Figure 2 A cross-sectional view of a valve member in a closed state provided in an embodiment of the present application, wherein the direction of the arrow indicates the direction in which the air pressure decreases;

[0019] Figure 3 A cross-sectional view of a valve member provided in an embodiment of the present application in an open state, wherein the direction of the arrow indicates the direction of water flow in the valve member;

[0020] Figure 4A cross-sectional view of the valve member provided in an embodiment of the present application, when in an open state, closing the anti-siphon hole.

[0021] Description of reference numerals:

[0022] 100, gland; 110, cover body; 120, connecting tube; 130, second sealing part; 140, rotating ear;

[0023] 200, adjusting member; 210, first connecting portion; 211, groove; 220, stop portion; 230, second connecting portion; 240, first sealing portion; 250, third connecting portion;

[0024] 300, movable part; 400, elastic part; 500, filter part;

[0025] 10. Valve body; 11. Still water chamber; 12. Water inlet chamber; 13. Connector; 14. Adjustment port; 15. Water outlet chamber; 20. Anti-siphon assembly; 30. Water outlet control assembly. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can appreciate the applicability of other processes and / or the use of other materials.

[0028] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0029] See also Figures 1 to 4 The embodiment of the present application provides an anti-siphon assembly for a valve member, the valve member is provided with an adjusting port 14, a static water chamber 11 and an anti-siphon hole located inside the valve member, the anti-siphon hole is connected to the adjusting port 14 through the static water chamber 11, and the anti-siphon assembly 20 includes: a gland 100, connected to the adjusting port 14; an adjusting member 200, including a first connecting portion 210, a stop portion 220 and a second connecting portion 230 connected in sequence, the first connecting portion 210 is rotatably connected to the gland 100, the stop portion 220 is provided to protrude along the radial direction of the adjusting member 200, and the second connecting portion 230 is plugged into the anti-siphon hole; a movable member 300, sleeved on the second connecting portion 230 and restricted by the stop portion 220, the movable member 300 is located in the static water chamber 11, and can reciprocate along the second connecting portion 230; and an elastic member 400, sleeved on the adjusting member 200 and located between the movable member 300 and the gland 100.

[0030] In this embodiment, the position control of the movable part 300 is realized by the adjusting member 200 and the elastic member 400, so as to realize the anti-siphon function and the flushing flow regulating function. Specifically, when the valve member is in the closed state, the movable part 300 is attached to the anti-siphon hole by the static water in the static water chamber 11, and then the elastic member 400 and the negative pressure at the water inlet of the valve member are used to firmly adsorb the movable part 300 on the anti-siphon hole to realize the closing of the anti-siphon hole, thereby achieving the anti-siphon effect; at the same time, when the valve member is in the open state, the movable part 300 on the anti-siphon hole is first flushed open to the stopper 220 by flushing, and then the position between the stopper 220 and the anti-siphon hole is adjusted to realize the adjustment of the flushing flow. In this way, this embodiment integrates the anti-siphon function and the flow regulating function of the valve member, simplifies the overall structure of the valve member, reduces the occupied space, and reduces the production cost.

[0031] Specifically, the anti-siphon assembly 20 is configured as a composite component including at least a pressure cap 100, an adjusting member 200, a movable member 300 and an elastic member 400. The pressure cap 100 can be a cover member with a hand-held rotating structure on the top, and an external thread is arranged on the bottom outer wall thereof. The inner wall of the adjusting port 14 of the valve member is provided with an internal thread compatible with the aforementioned external thread. The operator can hold the rotating structure by hand and then screw the bottom of the pressure cap 100 into the adjusting port 14 to achieve the connection and tightening of the pressure cap 100 and the adjusting port 14. The adjusting member 200 can be configured as a combined component including at least a first connecting portion 210, a stop portion 220 and a second connecting portion 230. The first connecting portion 210 can be a nail-shaped structural member, the top of which can be a larger connecting head, and the bottom of which can be a smaller connecting rod. The connecting head can extend out of the pressure cover 100 when the valve member is in a closed state. At this time, the anti-siphon assembly 20 has an anti-siphon function. The movable member 300 is pressed against the anti-siphon hole under the dual effects of the static water pressure in the static water chamber 11 and the negative pressure adsorption of the water inlet chamber 12, thereby realizing the anti-siphon effect of the valve member; or, the connecting head can extend out of the pressure cover 100 when the valve member is in an open state and a larger flushing volume is required. At this time, the anti-siphon assembly 20 has a water flow adjustment function. The further the adjusting member 200 is screwed out, the greater the distance between the movable member 300 and the anti-siphon hole. , the larger the flow volume through the anti-siphon hole, the larger the flushing volume and the better the flushing effect; of course, the connector can also be accommodated in the pressure cover 100 when the valve member is in an open state and a normal or smaller flushing flow state is required. At this time, the anti-siphon component 20 has a water outlet flow adjustment function. The more the adjusting member 200 is screwed inward, the smaller the distance between the movable member 300 and the anti-siphon hole, the smaller the flow volume through the anti-siphon hole, the smaller the flushing volume, and the smaller the flushing water saving; the connecting rod is accommodated in the static water chamber 11 and moves with the connector; the stop portion 220 can be an annular member, which is sleeved at the connection between the first connecting portion 210 and the second connecting portion 230, and is used to limit the movable member 300; the second connecting portion 230 can be a rod-shaped member, which is inserted into the anti-siphon hole and is simultaneously accommodated in the static water chamber 11 of the valve member and the water inlet chamber 12 located below it. The movable part 300 can be an annular sheet with a through hole on it. The second connecting part 230 of the adjusting part 200 passes through the through hole to sleeve the movable part 300 on the outside of the adjusting part 200, so as to limit the position of the movable part 300 and only allow the movable part 300 to reciprocate along the axial direction of the second connecting part 230 to get close to the anti-siphon hole and separate the static water chamber 11 and the water inlet chamber 12; or to move away from the anti-siphon hole and achieve flushing. In addition, the distance between the movable part 300 abutting on the stop part 220 and the anti-siphon hole can be adjusted by moving the position of the adjusting part 200, so as to adjust the water flow through the anti-siphon hole and further achieve the flow regulation function of the valve part.The elastic member 400 may be a spring, which is sleeved on the outer side of the adjusting member 200 and abuts between the pressure cover 100 and the movable member 300 to provide the movable member 300 with elastic force to press against the anti-siphon hole, thereby further enhancing the anti-siphon effect.

[0032] As shown above, when the valve member is in a closed state, the static water chamber 11 is separated from the water outlet chamber 15 located below it, and the water in the static water chamber 11 is in a static state. At this time, the movable member 300 located in the static water chamber 11 is in contact with the top of the anti-siphon hole under the action of the gravity of the static water and its own gravity. On the one hand, negative pressure is generated at the water inlet connected to the water inlet chamber 12, giving the movable member 300 a suction force to press toward the anti-siphon hole; on the other hand, the elastic member 400 gives the movable member 300 an elastic force to press toward the anti-siphon hole, so that the movable member 300 is pressed tightly against the anti-siphon hole, thereby realizing the separation of the static water chamber 11 and the water inlet chamber 12, preventing the water in the static water chamber 11 from entering the water inlet chamber 12, and achieving an anti-siphon effect with excellent effect. When the valve is in the open state, the water pressure at the water inlet will push the movable part 300 outward. At this time, the anti-siphon hole is opened, the water inlet chamber 12 is connected with the static water chamber 11, and the static water chamber 11 is connected with the water outlet chamber 15. The water entering from the water inlet enters the static water chamber 11 through the anti-siphon hole, and enters the water outlet chamber 15 from the static water chamber 11, and finally flows out from the water outlet connected with the water outlet chamber 15 to achieve flushing. If the flushing water flow rate needs to be adjusted, the position of the adjusting part 200 can be moved inward or outward so that the adjusting part 200 can be screwed in or out of the valve part, thereby changing the distance between the movable part 300 and the anti-siphon hole, and the flushing water volume can be adjusted. The entire anti-siphon assembly 20 has a simple structure and a high degree of compactness, which is conducive to the miniaturized layout of the valve parts.

[0033] In one example, the first connection portion 210, the stop portion 220 and the second connection portion 230 can be integrally formed to reduce the back-end assembly process, save assembly time, improve assembly efficiency, and reduce processing costs. Of course, in other embodiments, the first connection portion 210, the stop portion 220 and the second connection portion 230 can be split structural parts and can be connected together by gluing or welding.

[0034] It should be noted that the anti-siphon assembly 20 provided in this embodiment is not only applicable to valve components, but also applicable to other devices or equipment that require anti-siphon and flow regulation, such as flush toilets, self-priming pumps, etc.

[0035] In a possible embodiment, a water inlet chamber 12 is provided in the valve member, and the water inlet chamber 12 is connected to the static water chamber 11 through an anti-siphon hole. A connecting piece 13 is provided in the water inlet chamber 12. The adjusting member 200 also includes a third connecting portion 250, which is connected to one end of the second connecting portion 230 away from the stop portion 220, and the third connecting portion 250 is threadedly connected to the connecting piece 13.

[0036] In this embodiment, the specific configuration of the adjusting member 200 is further optimized. Specifically, the adjusting member 200 is configured as a composite member including at least a first connecting portion 210, a stop portion 220, a second connecting portion 230 and a third connecting portion 250. The third connecting portion 250 may be a rod-shaped member, and an external thread is arranged on its outer wall. Meanwhile, a connecting member 13 is arranged in the water inlet cavity 12 of the valve member. The connecting member 13 may be a plate-shaped member, one end of which is connected to the inner wall of the water inlet cavity 12, and the other end extends toward the anti-siphon hole and is located below the anti-siphon hole. The connecting member 13 is provided with a connecting hole corresponding to the anti-siphon hole, and an internal thread matching the aforementioned external thread is arranged on the inner wall of the connecting hole. In this way, the third connecting portion 250 can be threadedly connected to the connecting member 13 through the external thread and the internal thread. In this example, the third connecting part 250 is threadedly connected to the connecting member 13. On the one hand, the connecting member 13 can provide support force for the adjusting member 200 to prevent the adjusting member 200 from being disconnected from the pressure cover 100, thereby improving the stability and reliability of the adjusting member 200 during movement; on the other hand, the threaded connection can enhance the connection tightness between the adjusting member 200 and the valve member; in addition, the third connecting part 250 can be guided through the connecting hole, thereby improving the movement accuracy of the adjusting member 200.

[0037] In a possible embodiment, a groove 211 cooperating with a screwing member is provided on one side of the first connection part 210 away from the stop part 220; and / or a handle is provided on one side of the first connection part 210 away from the stop part 220. With such a configuration, a screwing member such as a screwdriver or a manipulator can be inserted into the groove 211 to achieve the screwing and rotation of the first connection part 210, thereby achieving the screwing in or screwing out of the adjusting member 200, and further achieving the flushing flow regulating function of the anti-siphon assembly 20. Alternatively, the first connection part 210 can also be manually screwed and rotated by a handle or other member, thereby achieving the screwing in or screwing out of the adjusting member 200, and further achieving the flushing flow regulating function of the anti-siphon assembly 20. The screwing in or screwing out structure of the first connection part 210 provided in this example is simple and easy to operate.

[0038] Of course, in other embodiments, the first connection portion 210 can also be screwed through other external components. For example, the first connection portion 210 can be connected to the output end of the rotary motor through a transmission member or directly to achieve screwing in or screwing out through the rotary motor. It is understandable that the present application is not limited to the screwing method of the adjusting member 200. As long as the method that can achieve screwing in or screwing out the adjusting member 200 belongs to the protection scope of the present application.

[0039] In a possible implementation, the radial dimension of the third connection portion 250 is less than or equal to the radial dimension of the second connection portion 230. This configuration can not only reduce the overall weight of the adjustment member 200 and achieve a lightweight layout of the anti-siphon assembly 20, but also save raw materials and reduce the production cost of the adjustment member 200.

[0040] In a possible implementation, the adjusting member 200 further includes a first sealing portion 240 , and the first sealing portion 240 is disposed between the first connecting portion 210 and the pressure cover 100 .

[0041] In this embodiment, the specific configuration of the adjusting member 200 is further optimized. Specifically, the adjusting member 200 is configured as a composite member including at least a first connecting portion 210, a stop portion 220, a second connecting portion 230 and a first sealing portion 240. The first sealing portion 240 may be a sealing ring, which is sleeved on the outside of the first connecting portion 210 and pressed against the gland 100, so as to improve the sealing performance of the connection between the adjusting member 200 and the gland 100, and prevent air from entering the static water chamber 11 from the gap between the adjusting member 200 and the gland 100, thereby affecting the overall performance of the valve member.

[0042] In one example, the first sealing portion 240 may be any one of a HNBR nitrile rubber sealing ring, a HNBR hydrogenated nitrile rubber sealing ring, a SIL silicone rubber sealing ring, a VITON fluorine rubber sealing ring, a FLS fluorosilicone rubber sealing ring, an EPDM ethylene propylene diene monomer rubber sealing ring, a CR chloroprene rubber sealing ring, an IIR butyl rubber sealing ring, an ACM acrylic rubber sealing ring, an NR natural rubber sealing ring, a PU polyurethane rubber sealing ring, or a metal rubber sealing ring. For example, but not limited to, the first sealing portion 240 is a metal rubber sealing ring.

[0043] In a possible embodiment, a plurality of annular grooves are provided on the outer wall of the first connection part 210, and the plurality of annular grooves are arranged at intervals along the axial direction of the adjusting member 200. A plurality of first sealing parts 240 are provided, and one first sealing part 240 is correspondingly arranged in one annular groove. Such arrangement can at least improve the sealing performance between the adjusting member 200 and the gland 100 in terms of quantity, and even if the adjusting member 200 is subsequently moved inward due to the need to adjust the flushing volume of the valve member, at least one first sealing part 240 can be guaranteed to be arranged between the first connection part 210 and the gland 100 to ensure the sealed connection between the adjusting member 200 and the gland 100. In addition, in this example, the first sealing part 240 is embedded in the concave annular groove to enhance the connection tightness between the first sealing part 240 and the first connection part 210, prevent the first sealing part 240 from detaching from the first connection part 210 and falling into the static water chamber 11 during the movement, and improve the reliability of the valve member.

[0044] In a possible embodiment, the pressure cover 100 includes a cover body 110 and a connecting tube 120 inserted into the cover body 110, the cover body 110 is threadedly connected to the adjustment port 14, one end of the connecting tube 120 extends out of the valve member, the elastic member 400 is sleeved on the other end of the connecting tube 120, and the adjusting member 200 is movably connected in the connecting tube 120.

[0045] In this embodiment, the specific configuration of the gland 100 is optimized. Specifically, the gland 100 is configured as a combined component including at least a cover body 110 and a connecting tube 120. The cover body 110 may be a cylindrical tube structure with one end open, and its bottom end is open, so that the elastic member 400 can be inserted and pressed against the inner wall of the top end; the connecting tube 120 may be a cylindrical tube with two ends open, and its radial dimension is smaller than that of the cover body 110, and is inserted in the center of the cover body 110 and distributed on both sides of the cover body 110. The regulating member 200 is movably inserted in the connecting tube 120, and extends out of the connecting tube 120 when the valve member is in a closed state. At this time, the anti-siphon component 20 has an anti-siphon function, and the movable member 300 is pressed against the anti-siphon hole under the dual effects of the static water pressure in the static water chamber 11 and the negative pressure adsorption of the water inlet chamber 12, so as to realize the anti-siphon effect of the valve member; or, the connector can extend out of the connecting tube 120 when the valve member is in an open state and a larger flushing volume is required. At this time, the anti-siphon component 20 has a water flow regulating function, and the more the regulating member is rotated outward, the more the water flow regulating function is increased. The greater the distance between the joint part 200, the movable part 300 and the anti-siphon hole, the greater the flow volume through the anti-siphon hole, the greater the flushing volume, and the better the flushing effect; of course, the connector can also be accommodated in the connecting tube 120 when the valve part is in an open state and a normal or smaller flushing flow state is required. At this time, the anti-siphon component 20 has a water flow adjustment function. The further the adjusting part 200 is screwed inward, the smaller the distance between the movable part 300 and the anti-siphon hole, the smaller the flow volume through the anti-siphon hole, the smaller the flushing volume, and the less flushing water is saved. In this example, the double-layer cylindrical structure of the pressure cover 100 can not only cover and seal the regulating port 14 to achieve the normal flushing function of the valve part, but also improve the connection reliability between the adjusting part 200 and the pressure cover 100, and improve the stability of the anti-siphon component 20.

[0046] In a possible implementation, the pressure cover 100 further includes a second sealing portion 130 , and the second sealing portion 130 is disposed between the cover body 110 and the regulating port 14 .

[0047] In this embodiment, the specific configuration of the gland 100 is further optimized. Specifically, the gland 100 is configured as a composite component including at least a cover body 110, a connecting tube 120 and a second sealing portion 130. The second sealing portion 130 can be a sealing ring, which is sleeved on the outside of the cover body 110 and pressed against the inner wall of the regulating port 14, so as to improve the connection sealing between the gland 100 and the valve member, and prevent air from entering the static water chamber 11 from the gap between the gland 100 and the regulating port 14, thereby affecting the overall performance of the valve member.

[0048] In one example, the second sealing portion 130 can be any one of a HNBR nitrile rubber sealing ring, a HNBR hydrogenated nitrile rubber sealing ring, a SIL silicone rubber sealing ring, a VITON fluorine rubber sealing ring, a FLS fluorosilicone rubber sealing ring, an EPDM ethylene propylene diene monomer rubber sealing ring, a CR chloroprene rubber sealing ring, an IIR butyl rubber sealing ring, an ACM acrylic rubber sealing ring, an NR natural rubber sealing ring, a PU polyurethane rubber sealing ring, or a metal rubber sealing ring. For example, but not limited to, the second sealing portion 130 is a HNBR nitrile rubber sealing ring.

[0049] In a possible implementation, the pressure cover 100 further includes a rotating ear 140 disposed between the cover body 110 and the connecting tube 120 , and the rotating ear 140 is located outside the adjustment port 14 .

[0050] In this embodiment, the specific configuration of the gland 100 is further optimized. Specifically, the gland 100 is configured as a composite component including at least a cover body 110, a connecting tube 120, a second sealing portion 130 and a rotating ear 140. The rotating ear 140 can be a split plate-like structure, which is symmetrically arranged on the outer wall of the connecting tube 120 and connected to the top wall of the cover body 110; the rotating ear 140 can be connected to the cover body 110 and the connecting tube 120 by welding, which is convenient for operators to apply force to screw the gland 100 into the adjustment port 14, thereby reducing the difficulty of closing the gland 100.

[0051] In a possible implementation, the anti-siphon assembly 20 further includes a filter element 500 , which is sleeved on the outside of the elastic element 400 and the movable element 300 and is located between the gland 100 and the anti-siphon hole.

[0052] In this embodiment, the specific configuration of the anti-siphon assembly 20 is further optimized. Specifically, the anti-siphon assembly 20 is configured as a composite component including at least a gland 100, an adjustment member 200, a movable member 300, an elastic member 400 and a filter 500. The filter 500 can be a barrel-shaped filter screen with openings at both ends, which can be sleeved on the outside of the adjustment member 200, the elastic member 400, the movable member 300 and part of the gland 100 to filter large particles of impurities in the flushing water, so as to prevent large particles of impurities from directly hitting the movable member 300, damaging the movable member 300 and affecting the tightness of the connection between the movable member 300 and the anti-siphon hole, thereby realizing mechanical protection of the above components. In addition, the filter 500 can also improve the flushing quality and improve the protection of the internal components of the valve member.

[0053] In addition, if Figures 1 to 4 As shown, the present application also provides a valve component, including a valve body 10, a water outlet control assembly 30 and the anti-siphon assembly 20 as described above, the valve body 10 is provided with an adjustment port 14, a static water cavity 11, an anti-siphon hole located inside the valve body 10, a water outlet cavity 15, a switch port and a water outlet through hole located inside the valve body 10, the water outlet through hole connects the static water cavity 11 and the water outlet cavity 15, one end of the water outlet control assembly 30 is connected to the switch port, and the other end is connected to the water outlet through hole, the anti-siphon hole is connected to the adjustment port 14 through the static water cavity 11, the pressure cap 100 of the anti-siphon assembly 20 is connected to the adjustment port 14, and one end of the adjustment member 200 of the anti-siphon assembly 20 is plugged into the anti-siphon hole. The specific structure of the anti-siphon assembly 20 refers to the above embodiment, and since the present valve component adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0054] From the above, the valve body 10 is provided with a water inlet chamber 12, a static water chamber 11 and a water outlet chamber 15. The static water chamber 11 is arranged above the water inlet chamber 12 and the water outlet chamber 15. The static water chamber 11 is provided with an adjusting port 14 and a switch port above the static water chamber 11. The anti-siphon hole and a water outlet through-hole are provided below the static water chamber 11. The anti-siphon hole connects the water inlet chamber 12 and the static water chamber 11, and the water outlet through-hole connects the water outlet chamber 15 and the static water chamber 11. The anti-siphon component 20 is inserted in the adjusting port 14 and in the anti-siphon hole to achieve the connection or isolation of the anti-siphon hole, thereby achieving flushing or anti-siphoning of the valve body 10; the water outlet control component 30 is inserted in the switch port and in the water outlet through-hole to achieve the connection or isolation of the water outlet through-hole, thereby achieving water flow or water cut-off of the valve body 10.

[0055] In this way, when the valve member is in a closed state, the water outlet control assembly 30 is closed, the static water chamber 11 is separated from the water outlet chamber 15 located below it, and the water in the static water chamber 11 is in a static state. At this time, the movable member 300 located in the static water chamber 11 is in contact with the top of the anti-siphon hole under the action of the gravity of the static water and its own gravity. On the one hand, a negative pressure is generated at the water inlet connected to the water inlet chamber 12, giving the movable member 300 a suction force to press toward the anti-siphon hole; on the other hand, the elastic member 400 gives the movable member 300 an elastic force to press toward the anti-siphon hole, so that the movable member 300 is pressed tightly against the anti-siphon hole, thereby realizing the separation of the static water chamber 11 and the water inlet chamber 12, preventing the water in the static water chamber 11 from entering the water inlet chamber 12, and achieving an anti-siphon effect with excellent effect.

[0056] When the valve is in the open state, the water outlet control assembly 30 is opened, and the water pressure at the water inlet will push the movable part 300 outward. At this time, the anti-siphon hole is opened, the water inlet chamber 12 is connected with the static water chamber 11, and the static water chamber 11 is connected with the water outlet chamber 15. The water entering from the water inlet enters the static water chamber 11 through the anti-siphon hole, and enters the water outlet chamber 15 from the static water chamber 11 through the water outlet hole, and finally flows out from the water outlet connected with the water outlet chamber 15 to achieve flushing. If the flushing water flow rate needs to be adjusted, the adjusting part 200 can be screwed inward to change the distance between the movable part 300 and the anti-siphon hole, and change the amount of flushing water passing through the anti-siphon hole, thereby achieving the adjustment of the flushing water volume.

[0057] It can be understood that the valve component provided in this example can be a solenoid valve, a mechanical valve, or other valve components having the anti-siphon assembly 20 provided in this application. The specific type of valve component is not limited here, and technical personnel in this field can choose according to actual needs.

[0058] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0059] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0060] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An anti-siphon assembly for a valve member, wherein the valve member is provided with an adjustment port, a static water cavity and an anti-siphon hole located inside the valve member, wherein the anti-siphon hole is connected to the adjustment port through the static water cavity, and wherein: The anti-siphon assembly comprises: A gland connected to the regulating port; The adjusting member comprises a first connecting portion, a stop portion and a second connecting portion which are connected in sequence, wherein the first connecting portion is rotatably connected to the gland, the stop portion is protrudingly arranged along the radial direction of the adjusting member, and the second connecting portion is plugged into the anti-siphon hole; A movable member, sleeved on the second connecting portion and restricted by the stop portion, the movable member is located in the static water chamber and can reciprocate along the second connecting portion; and The elastic member is sleeved on the adjusting member and is located between the movable member and the pressure cover.

2. The anti-siphon assembly according to claim 1, characterized in that: A water inlet chamber is provided in the valve component, and the water inlet chamber is connected with the static water chamber through the anti-siphon hole. A connecting piece is provided in the water inlet chamber. The adjusting component also includes a third connecting part, and the third connecting part is connected to an end of the second connecting part away from the stop part. The third connecting part is threadedly connected to the connecting piece.

3. The anti-siphon assembly according to claim 1, characterized in that: A groove cooperating with the screw member is provided on one side of the first connecting portion away from the stop portion; and / or, A handle is provided on a side of the first connecting portion away from the stopping portion.

4. The anti-siphon assembly according to claim 1, characterized in that: The adjusting member further includes a first sealing portion, which is arranged between the first connecting portion and the pressure cover.

5. The anti-siphon assembly according to claim 4, characterized in that: A plurality of annular grooves are provided on the outer wall of the first connecting portion, and the plurality of annular grooves are arranged at intervals along the axial direction of the adjusting member. A plurality of first sealing portions are provided, and one first sealing portion is correspondingly arranged in one annular groove.

6. The anti-siphon assembly according to claim 1, characterized in that: The pressure cover includes a cover body and a connecting tube inserted into the cover body, the cover body is threadedly connected to the regulating port, one end of the connecting tube extends out of the valve member, the elastic member is sleeved on the other end of the connecting tube, and the regulating member is movably connected in the connecting tube.

7. The anti-siphon assembly according to claim 6, characterized in that: The pressure cover further includes a second sealing portion, which is arranged between the cover body and the regulating port.

8. The anti-siphon assembly according to claim 6, characterized in that: The pressure cover also includes a rotating ear arranged between the cover body and the connecting tube, and the rotating ear is located outside the regulating port.

9. The anti-siphon assembly according to claim 1, characterized in that: The anti-siphon assembly further comprises a filter element, which is sleeved on the outer sides of the elastic element and the movable element and is located between the gland and the anti-siphon hole.

10. A valve component, characterized in that: It includes a valve body, a water outlet control component and an anti-siphon component as described in any one of claims 1 to 9, the valve body is provided with an adjusting port, a static water cavity, an anti-siphon hole located inside the valve body, a water outlet cavity, a switch port and a water outlet through-hole located inside the valve body, the water outlet through-hole connects the static water cavity and the water outlet cavity, one end of the water outlet control component is connected to the switch port, and the other end is connected to the water outlet through-hole, the anti-siphon hole is connected to the adjusting port through the static water cavity, the pressure cover of the anti-siphon component is connected to the adjusting port, and one end of the adjusting member of the anti-siphon component is inserted into the anti-siphon hole.

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