Flush valve assembly

Abstract

The invention relates to a flush valve assembly, and belongs to the technical field of valve bodies, the flush valve assembly comprises a base, a valve body and a first sealing piece, and the base comprises a water outlet; the valve body comprises an outer edge surface; the first sealing piece is sleeved on the outer edge surface; wherein a protruding part is arranged on the inner wall of the water outlet, and a deformation part is arranged at one end of the first sealing piece; the outer edge face is attached to the inner wall of the water outlet through a first sealing piece. The deformation part is configured to deform towards the inner wall face of the water outlet after abutting against the protruding part till the deformation part abuts against the inner wall face of the water outlet tightly. According to the flushing valve assembly, the sealing reliability can be improved, and the risk of water leakage is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of valve bodies, and more particularly, to a flushing valve assembly. Background Art

[0002] A flushing valve is a common component of sanitary equipment. The flushing valve is mainly used to control the opening and closing of water flow, and is usually installed on toilets, urinals or other sanitary equipment for flushing and cleaning.

[0003] The traditional flushing valve controls the opening or closing of the valve by the lifting of the valve body. When water is needed, the valve body is controlled to rise, allowing the water in the water tank to enter the water outlet through the channel between the valve body and the base and flow out of the water tank. When the water use stops, the valve body is controlled to descend, and the valve body fits with the bottom wall of the base of the water tank (and the inner wall of the water outlet) to block the water outlet and prevent water from flowing out. The traditional flushing valve seals the water outlet through the surface seal between the outer edge surface of the valve body and the inner wall of the water outlet. On the one hand, the sealing effect of the flat surface seal is limited, resulting in poor sealing reliability between the outer edge surface of the valve body and the inner wall of the water outlet, and a high risk of water leakage. Summary of the Invention

[0004] The purpose of the present application is to provide a flushing valve assembly to reduce the risk of water leakage and improve the above problems in view of the above problems.

[0005] The present application is achieved by the following technical solutions:

[0006] The present application provides a flushing valve assembly, which includes a base, a valve body and a first seal. The base includes a water outlet; the valve body includes an outer edge surface; the first seal is sleeved on the outer edge surface; wherein, a protruding portion is provided on the inner wall of the water outlet, and a deformation portion is provided at one end of the first seal; the outer edge surface fits with the inner wall of the water outlet through the first seal; the deformation portion is configured to deform towards the inner wall surface of the water outlet after abutting against the protruding portion until the deformation portion abuts tightly against the inner wall surface of the water outlet.

[0007] In the technical solution of the embodiment of the present application, during the process that the valve body is controlled to move towards the water outlet of the base to close the water outlet, the deformation part first contacts the protruding part and is restricted from moving. The valve body continues to move, causing the bottom end of the deformation part to rise relative to the outer edge surface, driving the deformation part to deform towards the inner wall of the water outlet (arching as a whole or partially), so as to fill the gap between the outer edge surface and the inner wall of the water outlet, reducing the risk of water in the water tank leaking from between the outer edge surface and the inner wall of the water outlet when the water outlet is closed. At the same time, other undeformed parts of the first seal will also be driven by the valve body to abut against the inner wall surface of the water outlet to improve the sealing effect between the two; during the process that the valve body is controlled to move away from the water outlet of the base to open the water outlet, the protruding part gradually separates from the deformation part. The bottom end of the deformation part descends along the outer edge surface under the action of the elastic force of the first seal, its own gravity, and the dynamic force of the liquid flowing through the gap between the outer edge surface and the water outlet, driving the deformation part to return to its original state. On the one hand, the deformation part can deform according to the shape of the inner wall surface of the water outlet, thereby improving the sealing effect between the outer edge surface and the inner wall surface of the water outlet, making the sealing effect between each part of the outer edge surface and the inner wall surface of the water outlet stable. Even if the valve body and the base are worn due to long-term use, the deformation part can fit the worn surface and deform, so that the sealing effect between the valve body and the base remains continuous and stable; on the other hand, the first seal itself has elasticity, and the part other than the deformation part can fit the inner wall surface of the water outlet to form a surface seal, and the deformed part of the deformation part forms multiple line seals with the inner wall of the water outlet, so that a combination of surface seal and multiple line seals is formed between the valve body and the water outlet, which can have a strong and stable sealing effect. Even when the flushing valve assembly provided in the present application is applied to an aircraft, the first seal can buffer the pressure change brought by the acceleration in the water tank during takeoff or landing of the aircraft to the sealing part between the valve body and the base through its own elasticity, and keep the two sealed; on the other hand, every time the valve body and the base are separated, the deformation part can return to its original state, so that when the valve body and the base are closed next time, the deformation part can deform according to the shapes of the outer edge surface and the inner wall surface of the water outlet at that time, so that the gap between the outer edge surface and the inner wall surface of the water outlet (mainly the inner wall surface of the water outlet) can still be filled under the premise that the damage does not exceed a certain amount, making the sealing effect between the two better and reducing the risk of water leakage.

[0008] In some embodiments, the water outlet includes a first section and a second section. The first section is closer to the valve body than the second section; the protruding part is arranged on the second section. The diameter of the first section is not less than that of the second section, and the diameter of the first section gradually decreases from the end away from the second section to the end communicating with the second section.

[0009] In the technical solution of the embodiment of the present application, the caliber of the first mouth section is not smaller than the caliber of the second mouth section, and the caliber of the first mouth section gradually decreases from the end away from the second mouth section to the end connected to the second mouth section, so that the first mouth section is funnel-shaped, so that the first mouth section can guide the valve body to move to the second mouth section and then be smoothly inserted into the second mouth section, thereby reducing the risk of the seal between the base and the valve body failing due to the offset of the alignment position of the valve body and the base, and improving the sealing stability between the valve body and the base.

[0010] In some embodiments, the outer edge surface is parallel to the inner wall of the first port section, and a portion of the valve body extends into the second port section.

[0011] In the technical solution of the embodiment of the present application, the outer edge surface is parallel to the inner wall of the first mouth section, so that the outer edge surface is a conical surface. When the outer edge surface cooperates with the first mouth section of the water outlet to close, the force applied by the outer edge surface to the inner wall surface of the water outlet through the first seal is the combined force of the pressure and the elastic force of the first seal, so that the pressure of the water in the water tank can partially act on the first seal, so that the first seal can buffer the pressure change between the first seal and the inner wall surface of the water outlet caused by the acceleration change when the aircraft takes off or lands through its own elastic force.

[0012] In some embodiments, part of the valve body passes through the middle of the circular ring structure surrounded by the protrusion, and there is a gap between the valve body and the protrusion; the deformation portion is sleeved on the valve body, and in the radial direction of the second mouth section, the outer wall surface of the deformation portion exceeds the inner wall of the protrusion.

[0013] In the technical solution of the embodiment of the present application, there is a gap between the valve body and the protrusion, so that the valve body will not rub or scratch against the protrusion, reducing the risk of damage to both; in the radial direction of the second mouth section, the outer wall surface of the deformation part exceeds the inner wall of the protrusion, ensuring that the protrusion can effectively limit the deformation part without affecting the activity of the valve body.

[0014] In some embodiments, there is a gap between the outer wall surface of the deformation portion and the inner wall surface of the second mouth section.

[0015] In the technical solution of the embodiment of the present application, there is a gap between the outer wall surface of the deformation part and the inner wall surface of the second mouth segment, so that the deformation part is not easy to collide or contact with the second mouth segment when it has local deformation or deviation in direction or position. On the one hand, damage to the deformation part and the second mouth segment is avoided, and on the other hand, the inner wall surface of the second mouth segment is avoided to affect the movement of the deformation part.

[0016] In some embodiments, the deformation portion includes a deformation ring and a counterweight ring; wherein the deformation ring is elastic, and part of the deformation ring is slidably fitted with the outer edge surface; wherein the counterweight ring is provided with an opening, the counterweight ring is sleeved on the deformation ring, and the counterweight ring is located at the bottom end of the deformation ring; the counterweight ring is configured to be able to pull the deformation ring down along the outer edge surface by its own weight.

[0017] In the technical solution of the embodiment of the present application, the deformation ring is elastic, and the deformation ring is in sliding fit with the outer edge surface, enabling the deformable member to move along the outer edge surface while remaining in contact with the outer edge surface. The outer edge surface limits the entire deformation part, thereby guiding the deformation part to deform uniformly; the counterweight ring is provided with an opening, and the counterweight ring is sleeved on the deformation ring, enabling the counterweight ring to have a certain deformation range while maintaining its overall shape, and being able to deform according to the size of the valve body corresponding to the position of the outer edge surface where the deformation part is located, pushing the deformable member to fit with the outer edge surface and controlling the deformation direction of the deformation part; the counterweight ring is configured to be able to pull the deformation ring to descend along the outer edge surface by its own weight, so that after the valve body disengages from the water outlet, the deformation part can recover to its original state relatively quickly to cope with the relatively rapid opening and closing switching between the valve body and the base.

[0018] In some embodiments, in the radial direction of the second orifice section, the outer surface of the deformation ring exceeds the inner wall surface of the protruding part, and the outer surface of the first seal exceeds the outer surface of the counterweight ring.

[0019] In the technical solution of the embodiment of the present application, the outer surface of the deformation ring exceeds the inner wall surface of the protruding part, so that the sharp part of the angle formed by the inner wall surface of the protruding part and the top and bottom surfaces will not scrape the relatively hard counterweight ring. The outer surface of the first seal exceeds the outer surface of the counterweight ring, so that the outer peripheral surface of the entire deformation part does not exceed the outer surface of the first seal, thereby guiding the bottom end of the deformation part to arch outwards when rising along the outer edge surface, making it easier to fill the gap between the outer edge surface and the inner wall surface of the blowing water outlet.

[0020] In some embodiments, the deformation part further includes a support ring, the support ring is located between the first seal and the outer edge surface, and the support ring is connected to the deformation ring.

[0021] In the technical solution of the embodiment of the present application, the support ring is located between the first seal and the outer edge surface. When the deformation part deforms to fill the gap between the outer edge surface and the inner wall of the water outlet, the support ring can push the main body of the deformation part to abut against the inner wall surface of the water outlet and limit the deformation direction of the main body of the deformation part, improving the sealing effect between the outer edge surface and the inner wall surface of the water outlet. The support ring is connected to the deformation ring, enabling the support ring to move along the outer edge surface, thereby preventing the support ring from staying in the area with a larger outer diameter of the outer edge surface and blocking the valve body from entering the water outlet.

[0022] In some embodiments, the part of the first seal facing away from the deformation part is fixedly connected to the outer edge surface; the first seal is elastic, and the part of the first seal connected to the deformation part is in contact with the outer edge surface; wherein, the part of the first seal connected to the deformation part is configured to be able to deform away from the outer edge surface when the deformation part deforms towards the inner wall surface of the water outlet.

[0023] In the technical solution of the embodiment of the present application, the part of the first seal away from the deformation part is fixedly connected to the outer edge surface, preventing the entire first seal from moving along the outer edge surface; the part of the first seal connected to the deformation part fits the outer edge surface, preventing an air column from existing between the part of the first seal connected to the deformation part and the outer edge surface, which may affect the deformation of the first seal under the traction of the deformation part; the part of the first seal connected to the deformation part is configured to be able to deform away from the outer edge surface when the inner wall surface of the deformation part facing the water outlet deforms, enabling the part of the first seal connected to the deformation part to easily roll into two layers when guiding the deformation of the deformation part, filling the gap between the outer edge surface and the water outlet while preventing a channel allowing water flow to be folded out on the surface of the deformation part, and controlling the deformation direction of the deformation part.

[0024] In some embodiments, in the height direction of the valve body, the valve body exceeds the deformation part.

[0025] In the technical solution of the embodiment of the present application, the valve body exceeds the deformation part, enabling the deformation part to always move along the outer edge surface and be limited by the outer edge surface, preventing the leakage of liquid when it enters the inside of the first seal and the valve body is closed with the base.

[0026] Some additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solution of the embodiment of the present application, the following will briefly introduce the drawings required for the embodiment. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0028] Figure 1 External structural schematic diagram of a flushing valve assembly provided for some embodiments of the present application;

[0029] Figure 2 When the water outlet is open Figure 1 Cross-sectional view taken along line A-A in;

[0030] Figure 3 For Figure 2 Enlarged view at B in;

[0031] Figure 4 For Figure 3 Enlarged view at C in;

[0032] Figure 5 When the water outlet is closed Figure 1 Cross-sectional view taken along line A-A in;

[0033] Figure 6For Figure 5 An enlarged view of portion D in

[0034] Figure 7 A schematic structural view of a valve body provided by some embodiments of the present application;

[0035] Figure 8 For Figure 7 An enlarged view of portion E in

[0036] Reference numerals: 1 - base; 10 - water outlet; 100 - protruding portion; 101 - first port segment; 102 - second port segment; 2 - valve body; 20 - outer edge surface; 3 - first seal; 4 - deformation portion; 40 - deformation ring; 41 - counterweight ring; 42 - support ring. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0039] Referring to "embodiments" in the present application means that specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application may be combined with other embodiments.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0043] According to some embodiments of the present application, optionally, Figures 1 to 6 As shown, the present application provides a flush valve assembly, which includes a base 1, a valve body 2 and a first sealing member 3, wherein the base 1 includes a water outlet 10; the valve body 2 includes an outer edge surface 20; the first sealing member 3 is sleeved on the outer edge surface 20; wherein, a protrusion 100 is provided on the inner wall of the water outlet 10, and a deformation portion 4 is provided at one end of the first sealing member 3; the outer edge surface 20 is fitted with the inner wall of the water outlet 10 through the first sealing member 3; the deformation portion 4 is configured to deform toward the inner wall surface of the water outlet 10 after abutting against the protrusion 100, until the deformation portion 4 is tightly abutted against the inner wall surface of the water outlet 10.

[0044] The outer edge surface 20 of the valve body 2 may be a cylindrical surface, a conical surface, an arc surface or other shapes. The present application takes a conical surface as an example for description.

[0045] A seal is a component used to prevent liquid or gas from leaking between adjacent joint surfaces. It can also prevent external impurities such as dust and moisture from invading the interior of machinery and equipment.

[0046] In the height direction of the valve body 2 , the portion of the first sealing member 3 away from the water outlet 10 may be bonded or abutted against the outer edge surface 20 of the valve body 2 , thereby limiting the movement of the first sealing member 3 as a whole along the outer edge surface 20 of the valve body 2 .

[0047] The base 1 is located at the center of the bottom of the water tank, and the water outlet 10 is located at the center of the base 1. All water in the water tank needs to be discharged into the equipment to be flushed (such as a toilet) through the water outlet 10.

[0048] The number of the protruding portions 100 can be multiple, and the multiple protruding portions 100 are circumferentially arrayed around the axis of the base 1, so that the stress applied by the protruding portions 100 to the deformation portion 4 is uniform, and the deformation portion 4 can rise smoothly and uniformly along the outer edge surface 20 of the valve body 2 under the limitation of the protruding portions 100.

[0049] The deformation portion 4 itself can have a certain weight. When the valve body 2 is separated from the base 1 to open the water outlet 10, the deformation portion 4 can make the bottom end thereof descend along the outer edge surface 20 under the guidance of its own weight and the inclined outer edge surface 20, so that each time the valve body 2 closes the water outlet 10, the deformation portion 4 can be deformed along the shapes of the outer edge surface 20 of the valve body 2 and the inner wall surface of the water outlet 10.

[0050] During the process that the valve body 2 is controlled to move towards the water outlet 10 of the base 1 to close the water outlet 10, the deformation part 4 first contacts the protruding part 100 and its movement is restricted. The valve body 2 continues to move, causing the bottom end of the deformation part 4 to rise relative to the outer edge surface 20, driving the deformation part 4 to deform towards the inner wall of the water outlet 10 (arching as a whole or partially), so as to fill the gap between the outer edge surface 20 and the inner wall of the water outlet 10, reducing the risk of water in the water tank leaking from between the outer edge surface 20 and the inner wall of the water outlet 10 when the water outlet 10 is closed. At the same time, other undeformed parts of the first seal 3 will also be driven by the valve body 2 to abut against the inner wall surface of the water outlet 10 to improve the sealing effect therebetween; during the process that the valve body 2 is controlled to move away from the water outlet 10 of the base 1 to open the water outlet 10, the protruding part 100 gradually separates from the deformation part 4, and the bottom end of the deformation part 4 descends along the outer edge surface 20 under the action of the elastic force of the first seal 3, its own gravity, and the dynamic force of the liquid flowing through the gap between the outer edge surface 20 and the water outlet 10, driving the deformation part 4 to return to its original state. On the one hand, the deformation part 4 can deform according to the shape of the inner wall surface of the water outlet 10 to improve the sealing effect between the outer edge surface 20 and the inner wall surface of the water outlet 10, making the sealing effect between various parts of the outer edge surface 20 and the inner wall surface of the water outlet 10 stable. Even if the valve body 2 and the base 1 are worn due to long-term use, the deformation part 4 can still deform in accordance with the worn surface, keeping the sealing effect between the valve body 2 and the base 1 continuous and stable; on the other hand, the first seal 3 itself is elastic, and the part other than the deformation part 4 can fit with the inner wall surface of the water outlet 10 to form a surface seal, and the deformed part of the deformation part 4 forms multiple line seals with the inner wall of the water outlet 10, so that a combination of surface seal and multiple line seals is formed between the valve body 2 and the water outlet 10, which can have a strong and stable sealing effect. Even when the flush valve assembly provided in the present application is applied to an aircraft, the first seal 3 can buffer the pressure change brought to the sealed part between the valve body 2 and the base 1 by the acceleration in the water tank during takeoff or landing of the aircraft through its own elasticity and keep the seal between them; on the other hand, every time the valve body 2 and the base 1 are separated, the deformation part 4 can return to its original state, so that when the valve body 2 and the base 1 are closed next time, the deformation part 4 can deform according to the shapes of the outer edge surface 20 and the inner wall surface of the water outlet 10 at that time, so that even if the inner wall surface of the outer edge surface 20 and the water outlet 10 (mainly the inner wall surface of the water outlet 10) is damaged by no more than a certain amount, the gap between the outer edge surface 20 and the inner wall surface of the water outlet 10 can still be filled, making the sealing effect between them better and reducing the risk of water leakage.

[0051] According to some embodiments of the present application, optionally, such as Figures 2 to 6As shown, the water outlet 10 includes a first section 101 and a second section 102. The first section 101 is closer to the valve body 2 than the second section 102. The protruding portion 100 is provided on the second section 102. The caliber of the first section 101 is not less than that of the second section 102, and the caliber of the first section 101 gradually decreases from the end facing away from the second section 102 to the end communicating with the second section 102.

[0052] In the height direction of the base 1, the size of the first section 101 is smaller than that of the second section 102. When the valve body 2 closes the water outlet 10, the first seal 3 exceeds the bottom wall inside the base 1, enabling the outer edge surface 20 to contact the inner wall surface of the water outlet 10 through the first seal 3 everywhere.

[0053] The caliber of the first section 101 is not less than that of the second section 102, and the caliber of the first section 101 gradually decreases from the end facing away from the second section 102 to the end communicating with the second section 102, making the first section 101 funnel-shaped, so that the first section 101 can guide the valve body 2 to smoothly insert into the second section 102 after moving to the second section 102, reducing the risk of seal failure between the base 1 and the valve body 2 caused by the misalignment of the alignment position between the valve body 2 and the base 1, and enhancing the sealing stability between the valve body 2 and the base 1.

[0054] According to some embodiments of the present application, optionally, as Figures 2 to 3 、 Figures 5 to 6 shown, the outer edge surface 20 is parallel to the inner wall of the first section 101, and a part of the valve body 2 extends into the second section 102.

[0055] A drip-proof port is provided at the lowest point of the outer edge surface 20, which can suck the liquid flowing along the outer edge surface 20 to the lowest point into the drip-proof port, thus avoiding the risk of water leakage caused by the liquid remaining on the surface of the outer edge surface 20 that does not contact the water outlet 10 after the valve body 2 closes the water outlet 10 and concentrating at the lowest point of the outer edge surface 20 and dripping.

[0056] The outer edge surface 20 is parallel to the inner wall of the first section 101, making the outer edge surface 20 a conical surface. When the outer edge surface 20 cooperates with the first section 101 of the water outlet 10 for closing, the force exerted by the outer edge surface 20 on the inner wall surface of the water outlet 10 through the first seal 3 is the resultant force of the pressure and the elastic force of the first seal 3, enabling the pressure of the water in the water tank to partially act on the first seal 3, so that the first seal 3 can buffer the pressure change between the first seal 3 and the inner wall surface of the water outlet 10 caused by the acceleration change during the takeoff or landing of the aircraft through its own elastic force.

[0057] Optionally, in some embodiments, the outer edge surface 20 is inclined and not parallel to the inner wall of the first orifice section 101. When the outer edge surface 20 closes the water outlet 10, the distance between the upper end of the outer edge surface 20 and the inner wall of the first orifice section 101 is smaller than the distance between the lower end of the outer edge surface 20 and the inner wall of the first orifice section 101. Thus, during the process of the valve body 2 closing the water outlet 10, the upper part of the outer edge surface 20 can be in close contact with the inner wall of the first orifice section 101 prior to the lower part. Then, the first seal 3 gradually fits with the inner wall of the first orifice section 101 from top to bottom. While sealing the outer edge surface 20 and the inner wall of the first orifice section 101, it can push out the residual water between the outer edge surface 20 and the inner wall of the first orifice section 101 from the first orifice section 101, avoiding the situation where the residual liquid between the outer edge surface 20 and the first orifice section 101 accumulates to form a cavity, which affects the sealing performance between the valve body 2 and the inner wall of the water outlet 10.

[0058] According to some embodiments of the present application, optionally, as Figures 2 to 3 、 Figures 5 to 6 shown, a part of the valve body 2 passes through the circular ring structure surrounded by the protruding part 100, and there is a gap between the valve body 2 and the protruding part 100; the deformation part 4 is sleeved on the valve body 2, and in the radial direction of the second orifice section 102, the outer wall surface of the deformation part 4 exceeds the inner wall of the protruding part 100.

[0059] The inner wall surface of the protruding part 100 can be an arc surface, so that the angle between the arc surface and the adjacent surface is a rounded corner, reducing the risk of the deformation part 4 being scratched and damaged by the protruding part 100.

[0060] There is a gap between the valve body 2 and the protruding part 100, so that the valve body 2 will not rub or scrape against the protruding part 100, reducing the risk of damage to both; in the radial direction of the second orifice section 102, the outer wall surface of the deformation part 4 exceeds the inner wall of the protruding part 100, ensuring that the protruding part 100 can effectively limit the deformation part 4 while not affecting the movement of the valve body 2.

[0061] According to some embodiments of the present application, optionally, as Figure 2 、 Figures 5 to 6 shown, there is a gap between the outer wall surface of the deformation part 4 and the inner wall surface of the second orifice section 102.

[0062] The gap between the outer wall surface of the deformation part 4 and the inner wall surface of the second orifice section 102 is small and can be filled by the deformation of the first seal 3 connecting the deformation part 4, improving the sealing effect between the outer wall surface of the deformation part 4 and the inner wall surface of the second orifice section 102.

[0063] There is a gap between the outer wall surface of the deformation part 4 and the inner wall surface of the second mouth section 102, so that the deformation part 4 is not easy to collide or contact with the second mouth section 102 when it is partially deformed or offset in direction or position. On the one hand, damage to the deformation part 4 and the second mouth section 102 is avoided, and on the other hand, the inner wall surface of the second mouth section 102 is prevented from affecting the movement of the deformation part 4.

[0064] According to some embodiments of the present application, optionally, Figures 3 to 4 , Figures 6 to 8 As shown, the deformation part 4 includes a deformation ring 40 and a counterweight ring 41; wherein, the deformation ring 40 is elastic, and part of the deformation ring 40 slides with the outer edge surface 20; wherein, the counterweight ring 41 is provided with an opening, and the counterweight ring 41 is sleeved on the deformation ring 40, and the counterweight ring 41 is located at the bottom end of the deformation ring 40; the counterweight ring 41 is configured to be able to pull the deformation ring 40 down along the outer edge surface 20 by its own weight.

[0065] The weight ring 41 may be made of, but is not limited to, metal.

[0066] The weight ring 41 has a certain strength, and can keep the deformable portion 4 in an annular shape as a whole.

[0067] The deformable ring 40 may be made of a material that is easily deformed, such as rubber or resin.

[0068] The portion where the outer edge surface 20 contacts the deformable ring 40 may be provided with an anti-adhesion coating, so that the deformable ring 40 can slide along the outer edge surface 20 more easily without being easily adhered to and affecting the recovery process of the first sealing member 3 .

[0069] The bottom surface of the counterweight ring 41 is not higher than the bottom surface of the deformable ring 40, so that the counterweight ring 41 can contact the protrusion 100 no later than the deformable ring 40, thereby preventing the protrusion 100 from directly contacting the deformable ring 40 and guiding the deformable ring 40 to deform, thereby causing the deformable ring 40 to be stuck between the outer edge surface 20 and the inner wall surface of the protrusion 100.

[0070] The top surface of the weight ring 41 may be lower than the top surface of the deformable ring 40 , so as to reduce the restriction of the weight ring 41 on the shape of the deformable ring 40 , and allow the deformable ring 40 to deform more easily with the size changes of various locations of the outer edge surface 20 .

[0071] The deformation ring 40 is elastic. The deformation ring 40 is in sliding fit with the outer edge surface 20, enabling the deformable part to move along the outer edge surface 20 while remaining in contact with the outer edge surface 20. The outer edge surface 20 limits the deformation part 4 as a whole, thereby guiding the deformation part 4 to deform uniformly. The counterweight ring 41 is provided with an opening. The counterweight ring 41 is sleeved on the deformation ring 40, enabling the counterweight ring 41 to have a certain deformation range while maintaining its overall shape, and being able to deform according to the size of the valve body 2 corresponding to the position of the outer edge surface 20 where the deformation part 4 is located, pushing the deformable part into contact with the outer edge surface 20 and controlling the deformation direction of the deformation part 4. The counterweight ring 41 is configured to be able to pull the deformation ring 40 to descend along the outer edge surface 20 by its own weight, so that after the valve body 2 is separated from the water outlet 10, the deformation part 4 can quickly return to its original state to cope with the relatively rapid opening and closing switching between the valve body 2 and the base 1.

[0072] According to some embodiments of the present application, optionally, as Figure 6 shown, in the radial direction of the second orifice section 102, the outer surface of the deformation ring 40 exceeds the inner wall surface of the protruding part 100, and the outer surface of the first seal 3 exceeds the outer surface of the counterweight ring 41.

[0073] The outer surface of the deformation ring 40 exceeds the inner wall surface of the protruding part 100, so that the sharp part of the angle formed by the inner wall surface of the protruding part 100 with the top and bottom surfaces will not scrape the relatively hard counterweight ring 41. The outer surface of the first seal 3 exceeds the outer surface of the counterweight ring 41, so that the overall outer peripheral surface of the deformation part 4 does not exceed the outer surface of the first seal 3. Thus, when the bottom end of the deformation part 4 rises along the outer edge surface 20, it guides the deformation part 4 to arch outwards, making it easier to fill the gap between the outer edge surface 20 and the inner wall surface of the blowing water outlet.

[0074] According to some embodiments of the present application, optionally, as Figure 6 shown, the deformation part 4 further includes a support ring 42. The support ring 42 is located between the first seal 3 and the outer edge surface 20, and the support ring 42 is connected to the deformation ring 40.

[0075] The support ring 42 can be elastic, and the elasticity of the support ring 42 is weaker than that of the first seal 3.

[0076] The support ring 42 is located between the first seal 3 and the outer edge surface 20. When the deformation part 4 deforms to fill the gap between the outer edge surface 20 and the inner wall of the water outlet 10, the support ring 42 can push the main body of the deformation part 4 against the inner wall surface of the water outlet 10 and limit the deformation direction of the main body of the deformation part 4, improving the sealing effect between the outer edge surface 20 and the inner wall surface of the water outlet 10. The support ring 42 is connected to the deformation ring 40, enabling the support ring 42 to move along the outer edge surface 20, thereby preventing the support ring 42 from staying in the area with a larger outer diameter of the outer edge surface 20 and blocking the valve body 2 from entering the water outlet 10.

[0077] According to some embodiments of the present application, optionally, the top surface of the protruding portion 100 for supporting the deformable portion 4 is an arc surface, and the bottom surface of the deformable portion 4 is adapted to the shape of the top surface of the protruding portion 100.

[0078] The top surface of the protruding portion 100 may be a downwardly concave arc surface.

[0079] The top surface of the protruding portion 100 may be provided with an anti-slip coating.

[0080] The top surface of the protruding portion 100 for supporting the deformable portion 4 is an arc surface, and the bottom surface of the deformable portion 4 is adapted to the shape of the top surface of the protruding portion 100, so that the protruding portion 100 can limit the movement of the deformable portion 4 in the horizontal direction or prevent it from tilting through its cooperation with the deformable portion 4, reducing the risk that excessive local elastic force after irregular deformation of the first seal 3 causes positioning movement or tilting, resulting in a water leakage gap between the inner wall of the valve body 2 and the water outlet 10, and improving the sealing stability between the valve body 2 and the base 1.

[0081] According to some embodiments of the present application, optionally, the portion of the first seal 3 facing away from the deformable portion 4 is fixedly connected to the outer edge surface 20; the first seal 3 is elastic, and the portion of the first seal 3 connecting the deformable portion 4 is in contact with the outer edge surface 20; wherein, the portion of the first seal 3 connecting the deformable portion 4 is configured to be able to deform away from the outer edge surface 20 when the deformable portion 4 deforms towards the inner wall surface of the water outlet 10.

[0082] The portion of the first seal 3 facing away from the deformable portion 4 and the outer edge surface 20 may be bonded, abutted or engaged, etc.

[0083] The portion of the first seal 3 facing away from the deformable portion 4 is fixedly connected to the outer edge surface 20 to prevent the entire first seal 3 from moving along the outer edge surface 20; the portion of the first seal 3 connecting the deformable portion 4 is in contact with the outer edge surface 20 to prevent an air column from existing between the portion of the first seal 3 connecting the deformable portion 4 and the outer edge surface 20, which affects the deformation of the first seal 3 under the traction of the deformable portion 4; the portion of the first seal 3 connecting the deformable portion 4 is configured to be able to deform away from the outer edge surface 20 when the deformable portion 4 deforms towards the inner wall surface of the water outlet 10, so that the portion of the first seal 3 connecting the deformable portion 4 can easily roll into two layers when guiding the deformation of the deformable portion 4, fill the gap between the outer edge surface 20 and the water outlet 10 while preventing a channel allowing water flow to be formed on the surface of the deformable portion 4, and control the deformation direction of the deformable portion 4.

[0084] According to some embodiments of the present application, optionally, as Figure 2 、 Figure 5 and Figure 7 shown, in the height direction of the valve body 2, the valve body 2 exceeds the deformable portion 4.

[0085] The valve body 2 extends beyond the deformation part 4, enabling the deformation part 4 to always move along the outer edge surface 20 and be limited by the outer edge surface 20, thus avoiding the leakage when the liquid enters the inside of the first seal 3 and the valve body 2 is closed with the base 1.

[0086] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it and components therein can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flushing valve assembly, characterized in that, include: A base including a water outlet; A valve body including an outer edge surface; A first sealing member, sleeved on the outer edge surface; Wherein, a protrusion is provided on the inner wall of the water outlet, and a deformation portion is provided at one end of the first sealing member; The outer edge surface is in contact with the inner wall of the water outlet through the first sealing member; The deformation portion is configured to deform toward the inner wall surface of the water outlet after abutting against the protruding portion, until the deformation portion is tightly abutted against the inner wall surface of the water outlet.

2. The flushing valve assembly according to claim 1, wherein The water outlet comprises a first outlet section and a second outlet section, wherein the first outlet section is closer to the valve body than the second outlet section; The protrusion is arranged at the second opening section, the caliber of the first opening section is not less than the caliber of the second opening section, and the caliber of the first opening section gradually decreases from an end away from the second opening section to an end connected to the second opening section.

3. The flushing valve assembly according to claim 2, wherein, The outer edge surface is parallel to the inner wall of the first port section, and a portion of the valve body extends into the second port section.

4. The flushing valve assembly according to claim 3, characterized in that, Part of the valve body passes through the middle of the circular ring structure surrounded by the protruding portion, and there is a gap between the valve body and the protruding portion; The deformation portion is sleeved on the valve body, and in the radial direction of the second port section, the outer wall surface of the deformation portion exceeds the inner wall of the protruding portion.

5. The flushing valve assembly according to claim 4, characterized in that, There is a gap between the outer wall surface of the deformation portion and the inner wall surface of the second opening section.

6. The flushing valve assembly according to claim 4, characterized in that, The deformation part includes a deformation ring and a counterweight ring; Wherein, the deformation ring is elastic, and part of the deformation ring is slidably matched with the outer edge surface; Wherein, the counterweight ring is provided with an opening, the counterweight ring is sleeved on the deformation ring, and the counterweight ring is located at the bottom end of the deformation ring; The weight ring is configured to pull the deformation ring down along the outer edge surface.

7. The flushing valve assembly according to claim 6, wherein In the radial direction of the second opening section, the outer surface of the deformable ring exceeds the inner wall surface of the protruding portion, and the outer surface of the first sealing member exceeds the outer surface of the balancing ring.

8. The flushing valve assembly according to claim 6, characterized in that, The deformation portion further includes a support ring, the support ring is located between the first sealing member and the outer edge surface, and the support ring is connected to the deformation ring.

9. The flushing valve assembly according to claim 1, characterized in that, The portion of the first sealing member facing away from the deformation portion is fixedly connected to the outer edge surface; Wherein, the portion of the first sealing member connected to the deformation portion is configured to be able to deform away from the outer edge surface when the deformation portion deforms toward the inner wall surface of the water outlet.

10. The flushing valve assembly according to claim 1, characterized in that, In the height direction of the valve body, the valve body exceeds the deformation portion.

Images