Water supply control valve for flushing in non-power state and toilet flushing assembly

Abstract

The invention discloses a water supply control valve for flushing in a non-power state and a toilet flushing assembly. The water supply control valve comprises a shell, a water control assembly, a plugging assembly and a switch assembly. The shell is provided with a water inlet part, a water outlet part, a pressure cavity, an auxiliary cavity and a plurality of drainage channels; the water control assembly comprises an adjusting seat, a movable valve sleeve, a first elastic piece and an elastic switching structure, and the adjusting seat is arranged in the pressure cavity; the movable valve sleeve moves in the pressure cavity under the action of water pressure and the first elastic piece, and an acting face matched with the elastic switching structure is formed on the movable valve sleeve. The elastic switching structure is arranged on the adjusting base and abuts against and is matched with the acting face of the movable valve sleeve. The plugging assembly opens and closes the water inlet of the water outlet part under the pressure change of the pressure cavity; the switch assembly is used for opening and closing communication between the water inlet part and the pressure cavity; the invention provides a water supply control valve for flushing in a non-power state and a toilet flushing assembly. The problem that an existing toilet or a toilet cannot be normally used in the non-power state is solved.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware production, and in particular to a flushing water supply control valve and a toilet flushing component used in a power-off state. Background Art

[0002] At present, the existing intelligent toilet has no potential energy for flushing because the water tank is generally lower than the intelligent cover plate. Therefore, it is necessary to install a pump to pump the water in the low-water tank to the brush circle waterway and the main flushing waterway in sequence for flushing. The flushing time and flushing volume of the brush circle waterway and the main flushing waterway are achieved by the cooperation of the water inlet float and the switching structure. After the water is pumped by the pump, the water level in the water tank drops, and after it drops to the manually set position, the main flushing waterway is switched on. When the water level drops to the bottom, the water tank is replenished with water until the water level in the water tank reaches the original position, that is, the brush circle waterway is switched to the original state.

[0003] The above method is the most common structure, which uses the change of water level to realize water inlet and switching. However, the structure of this method is bulky and needs to rely on the water inlet float as a driving part. If the water inlet float is stuck due to scale, it will not be able to rise and fall smoothly, and the switching flushing cannot be realized, and its stability is poor. In addition, due to its large size, it occupies a large space in the water tank, and the water storage capacity of the water tank is insufficient, which makes it difficult to flush the dirt during flushing. Moreover, the float is limited by the switching structure and must be lowered to the set minimum water level to replenish water, otherwise the main flushing waterway cannot complete the flushing. Finally, there is a situation where the water volume is insufficient and it is difficult to flush and replenish water.

[0004] To this end, the researchers developed a switching structure that does not rely on an external water inlet float to achieve switching. The advantages of this method over the common structure are: reduced volume, no reliance on a water inlet float to achieve switching, so that the water inlet float can be replenished without being in the lowest position, and the water in the water tank can be quickly replenished while being discharged; however, this switching structure needs to rely on the power on and off of the water pump to achieve switching between the brush circle waterway and the main flushing waterway, and relies on the change in water inlet pressure to achieve switching, otherwise the entire switching structure will be unusable;

[0005] This also means that in the event of a power outage / no electricity, the flushing system of the toilet is completely paralyzed and cannot be used normally, seriously affecting the user experience (it is easy for consumers to misjudge it as a damaged product and a low-quality, counterfeit product); and how to achieve smooth and potential water inlet in the absence of electricity, while also being able to sequentially discharge water from the brush circle water channel and the main flushing water channel, and being able to control the water outlet time (water output) of the two water channels, as well as having a small size that does not take up space, this series of difficulties need to be solved simultaneously through further research and development and improvements. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a water supply control valve and a toilet flushing assembly for flushing in an off-power state, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problem that the existing toilet or toilet cannot be used normally in an off-power state.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A water supply control valve for flushing in a power-off state, the control valve comprising: a housing, a water control component, a blocking component and a switch component;

[0009] The housing is provided with a water inlet, a water outlet, a pressure chamber, an auxiliary chamber and a plurality of drainage channels; the auxiliary chamber is provided with a switch assembly and is used for connecting or closing the pressure chamber with the water inlet; the pressure chamber is provided with a water supply and control assembly; a plugging assembly is provided between the water inlet of the water outlet and the pressure chamber; the pressure chamber and the auxiliary chamber are respectively depressurized and drained through the drainage channels;

[0010] A water control assembly, comprising an adjusting seat, a movable valve sleeve, a first elastic member and an elastic switching structure, wherein the adjusting seat is installed in a pressure chamber and is provided with a passage connecting the blocking assembly and the pressure chamber; the movable valve sleeve moves in the pressure chamber under the action of water pressure and the first elastic member, and an action surface cooperating with the elastic switching structure is formed thereon; two ends of the first elastic member act on the adjusting seat and the movable valve sleeve respectively; the elastic switching structure is installed on the adjusting seat and abuts against the action surface of the movable valve sleeve, and opens and closes the passage at least twice as the position of the movable valve sleeve in the pressure chamber changes;

[0011] A plugging component, which opens and closes the water inlet of the water outlet part in response to the pressure change of the pressure chamber;

[0012] The switch assembly is mounted on the housing and is used to open and close the connection between the water inlet and the pressure chamber.

[0013] Furthermore, after water enters the pressure chamber and when the switch assembly is in a closed state, the blocking assembly opens the water outlets in sequence.

[0014] Furthermore, the elastic switching structure includes a movable frame, a pressure piece and a second elastic piece. The movable frame is swingably mounted on the adjustment seat through its upper hinge part, one side is used to open and close the channel, and the other side cooperates with the pressure piece and the second elastic piece to act between the adjustment seat and the movable valve sleeve so that the pressure piece abuts against the action surface; wherein, the movable valve sleeve moves along the pressure chamber, the action surface of its inner wall contacts and cooperates with the pressure piece, and swings along the position change on the action surface to link the movable frame to open and close the channel.

[0015] Furthermore, the action surface is arranged in a wave shape and forms at least two parking positions; wherein, when the movable valve sleeve moves axially and the radially abutting pressure piece falls on the parking position of the action surface, the channel is opened or blocked, so as to link the blocking component to open or block the water outlet.

[0016] Furthermore, it also includes a V-shaped sealing member, which is sleeved on the outer peripheral annular groove of the movable valve sleeve and acts on the inside of the pressure chamber to enable the movable valve sleeve to move axially in the pressure chamber in a sealed manner.

[0017] Furthermore, the blocking assembly includes a sealing lip, which covers the water inlet of the water outlet; the adjustment seat and the water outlet are separated by the sealing lip to form a first pressure-stabilizing chamber, and the first pressure-stabilizing chamber is connected to the channel of the adjustment seat; wherein the sealing lip is provided with a drainage hole, which connects the first pressure-stabilizing chamber with the water inlet.

[0018] Furthermore, the switch assembly includes a sealing diaphragm, a second pressure-stabilizing chamber and a drive group. The sealing diaphragm is installed in the auxiliary chamber and covers the entrance of the pressure chamber, and is provided with a water hole connecting the water inlet and the second pressure-stabilizing chamber; the drive group opens and closes the water hole under the action of external force, changes the pressure on both end surfaces of the sealing diaphragm, so that the water inlet is connected or closed with the pressure chamber.

[0019] Furthermore, the driving group includes a connecting rod, a third elastic member and a deformation member, one end of the connecting rod is used to open and close the water hole, and the other end is connected to the deformation member; the deformation member moves toward the water hole through the action of air pressure, and links the connecting rod to open the water hole to change the pressure on the two end surfaces of the sealing diaphragm; wherein the elastic member is used to drive the connecting rod to reset and block the water hole; the leakage channel is connected to the water hole.

[0020] Furthermore, it also includes an air pressure switch, which is installed outside the water tank and is sealed to the shell through an air pipe, and acts on the deformable member through air pressure.

[0021] Furthermore, each of the leakage channels includes a first leakage channel, a second leakage channel and a third leakage channel; the first leakage channel is used to discharge the water flow in the auxiliary chamber; the second leakage channel is connected to the channel and is used to discharge the water flow in the first pressure-stabilizing chamber; the third leakage channel is connected to the pressure relief chamber and is used to discharge the water flow in the pressure relief chamber.

[0022] Furthermore, a flow regulating valve is installed in the third leakage channel for adjusting the water outlet area of ​​the third leakage channel to adjust the discharge speed.

[0023] A toilet flushing assembly comprises a triangular valve, a water pump, a water circuit switching valve, a connecting pipe and the flushing water supply control valve; the water inlet of the flushing water supply control valve is connected to the municipal pipeline, and the water outlet is connected to the triangular valve; the water pump, the flushing control valve and the water circuit switching valve are respectively connected to the triangular valve, so that the water pump and the flushing control valve intermittently supply water to the water circuit switching valve.

[0024] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a flushing water supply control valve and a toilet flushing assembly for use in a power-off state, which are simple in structure, easy to manufacture, easy to implement and low in cost; the flushing water supply control valve of the present invention breaks the disadvantage that the traditional mechanical and electric control valve bodies cannot be shared, and can still realize the flushing function in a power-off state; the flushing function here is not a simple switch flushing function, but a flushing function and effect with the following multiple effects, which are as follows:

[0026] First, one-touch activation (one press) can start flushing in sequence. In other words, you only need to press once to flush the ring water channel and the main flushing water channel in sequence, without having to press multiple times, which provides a good experience.

[0027] Secondly, on the basis of one-button pressing, the flushing time (i.e., the flushing volume) can be controlled. After the switch assembly is turned on, the water flow impacts the movable valve sleeve in the pressure chamber to the bottom of the chamber, and quickly closes the connection between the water inlet and the pressure chamber. At this time, the water flow in the pressure chamber flows out from the discharge channel, and under the action of the first elastic member, the water flow in the chamber is slowly squeezed out. In this process, the movable valve sleeve slowly rises, and its upper acting surface cooperates with the elastic switching structure to open the channel, thereby linking the blocking assembly to open, and the water flows out from the water outlet, thereby realizing the flushing of the brush circle water channel; as the movable valve sleeve rises, the elastic switching structure is closed due to the change in the position of the acting surface, and at this time the water channel switching valve switches its position and switches to the main flushing water channel for water outlet; and as the movable valve sleeve continues to rise, the elastic switching structure is changed again to open the channel, and then the water outlet is opened again to discharge water, thereby realizing the main flushing Water supply of water channel; A very important improvement here is that the flushing time and flushing volume of the entire brush circle water channel and the main flushing water channel are set according to the position change of the movable valve sleeve, and the elastic force of the first elastic member dominates the speed of the position change of the movable valve sleeve. The elastic force of the first elastic member is relatively constant and stable, and the control of the entire flushing time is very uniform, and there will be no different flushing time and flushing volume of the brush circle water channel and the main flushing water channel each time. This is impossible to achieve in the existing structure, because the existing structure is based on water pressure, and this water pressure is in a constantly fluctuating state. When the water pressure is high, the flushing time is long, and when the water pressure is low, the flushing time is short, and it is impossible to quantify it, and it is impossible to guarantee a constant time. The user experience is extremely poor. The intermittent opening and closing of the method described in the present invention is no longer related to the water inlet pressure, and is constantly controlled. The setting of each flushing time (water volume) is almost uniform;

[0028] Furthermore, the entire structure is small in size and does not require the use of water-filled floating barrel components for operation;

[0029] In summary, the flushing control valve described in the present invention is small in size, can be controlled with one button and pressed once, can flush the brush circle water channel and the main flushing water channel in sequence, and can constantly control the flushing time and water volume each time. It can still be used smoothly in the power-off state and has a good user experience. The entire product design concept and structure are very clever. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the three-dimensional exploded structure of the flushing water supply control valve of the present invention;

[0032] Figure 2It is a three-dimensional structural schematic diagram of the wash water supply control valve of the present invention;

[0033] Figure 3 The cross-sectional view of the wash water supply control valve of the present invention Figure 1 ;

[0034] Figure 4 The cross-sectional view of the wash water supply control valve of the present invention Figure 2 ;

[0035] Figure 5 It is a cross-sectional view of the wash water supply control valve of the present invention in an original state;

[0036] Figure 6 It is a cross-sectional view of the movable valve sleeve in the wash water supply control valve of the present invention in the bottom state;

[0037] Figure 7 A cross-sectional view of the movable valve sleeve in the wash water supply control valve of the present invention in a gradually moving state;

[0038] Figure 8 It is a schematic diagram of the three-dimensional structure of the flushing component of the present invention. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the claims, description and drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are intended to distinguish different objects rather than to describe a specific order.

[0041] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0042] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0043] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0044] See also Figure 1-4 The present invention is a water supply control valve for flushing in a power-off state, which is used to start when the water pump 9 cannot be used (i.e., it is in a power-off state or damaged and cannot work normally) to flush the toilet (toilet);

[0045] The flushing water supply valve described in the present invention mainly replaces the water supply function of the water pump 9 when the water pump 9 cannot be used. The water supply here also needs to be intermittent, so as to ensure that the water circuit switching valve can complete the switching only after losing water pressure during the switching process.

[0046] The flushing water supply control valve in this embodiment includes: a housing 1, a water control component 2, a blocking component 3 and a switch component 4;

[0047] The housing 1 is injection molded and is divided into a shell 11, a base 12 and a top cover 13; the shell 11, the base 12 and the top cover 13 are connected as a whole by ultrasonic welding after assembly or assembled by other assembly structures, and are provided with a water inlet 14, a water outlet 15, a pressure chamber 16, an auxiliary chamber 17 and a plurality of drain channels 18;

[0048] The auxiliary chamber 17 is used for installing the switch assembly 4 and for connecting or closing the pressure chamber 16 with the water inlet 14;

[0049] The pressure chamber 16 is provided with the water supply and control assembly 2;

[0050] A plugging assembly 3 is installed between the water inlet of the water outlet 15 and the pressure chamber 16;

[0051] The pressure chamber 16 and the auxiliary chamber 17 are depressurized and drained through the drain channel 18 .

[0052] The water control assembly 2 includes an adjustment seat 21, a movable valve sleeve 22, a first elastic member 23 and an elastic switching structure 24;

[0053] The adjustment seat 21 is installed in the pressure chamber 16, and is provided with a channel 21A connecting the plugging assembly 3 and the pressure chamber 16; it should be noted that a first pressure stabilizing chamber 31 is formed between the adjustment seat 21 and the base 12, and a sealing lip 32 of the plugging assembly 3 is installed therein to cover the water inlet of the water outlet 15;

[0054] The movable valve sleeve 22 moves in the pressure chamber 16 under the action of the water pressure and the first elastic member 23, and an action surface 221 cooperating with the elastic switching structure 24 is formed thereon; it should be noted that, in the present embodiment, the action surface 221 is arranged in a wave shape and forms inner concave portions 221A and 221B (i.e., the parking position), and when the pressing member 241 of the elastic switching structure 24 is placed, the inner concave portions 221A and 221B drive the movable frame 242 to swing, thereby opening the channel 21A blocked by the movable frame 242;

[0055] The two ends of the first elastic member 23 act on the adjustment seat 21 and the movable valve sleeve 22 respectively;

[0056] The elastic switching structure 24 is mounted on the adjustment seat 21 and abuts against the action surface 221 of the movable valve sleeve 22. With the change of the position of the movable valve sleeve 22 in the pressure chamber 16, the channel 21A is opened and closed at least twice. It is explained here that in order to ensure the stability and controllability of the entire sequential opening, it is set that after the pressure chamber 16 is filled with water and the switch component 4 is in a closed state, the blocking component 3 can sequentially open the water outlet 15, so that it is not subject to fluctuations caused by changes in the water inlet pressure of the water inlet 14.

[0057] In addition, the elastic switching structure 24 in this embodiment includes a movable frame 242, a pressing member 241 and a second elastic member 243;

[0058] The movable frame 242 is swingably mounted on the base 12 via its upper hinge portion 242A, with one side being used to open and close the passage 21A, and the other side being used to cooperate with the second elastic member 243 through the pressing member 241 to act between the adjusting seat 21 and the movable valve sleeve 22, so that the pressing member 241 abuts against the action surface 221; that is, the movable frame 242 is mounted on the adjusting seat 21 via the lever principle; wherein, the movable valve sleeve 22 moves along the pressure chamber 16, and its inner wall has a wavy action surface 221 that contacts and cooperates with the pressing member 241, and swings along the position change on the action surface 221 (lever swing), so that the movable frame 242 opens or blocks the passage 21A.

[0059] A plugging component 3, which opens and closes the water inlet of the water outlet 15 in response to the pressure change of the pressure chamber 16;

[0060] The blocking component 3 includes a sealing lip 32, which covers the water inlet of the water outlet 15; the regulating seat 21 and the water outlet 15 are separated by the sealing lip 32 to form a first pressure-stabilizing chamber 31, and the first pressure-stabilizing chamber 31 is connected to the channel 21A of the regulating seat 21; wherein, the sealing lip 32 is provided with a drainage hole 31A, which connects the first pressure-stabilizing chamber 31 and the water inlet 14; the water outlet 15 is blocked by the first pressure-stabilizing chamber 31, and the pressure on both sides of the sealing lip 32 is the same under static pressure, so the water outlet 15 can be blocked very stably.

[0061] The switch assembly 4 is mounted on the housing 11 and is used to open and close the communication between the water inlet 14 and the pressure chamber 16 .

[0062] The switch assembly 4 includes a sealing diaphragm 41, a second pressure stabilizing chamber 42 and a driving group 43;

[0063] The sealing diaphragm 41 is installed in the auxiliary chamber 17 and covers the entrance of the pressure chamber 16, and is provided with a water hole B connecting the water inlet 14 and the second pressure stabilizing chamber 42;

[0064] The driving group 43 opens and closes the water hole B under the action of external force, and changes the pressure on the two end surfaces of the sealing diaphragm 41, so that the water inlet 14 is connected to or closed with the pressure chamber 16; the driving group 43 in this embodiment includes a connecting rod 431, a third elastic member 432 and a deformation member 433, one end of the connecting rod 431 is used to open and close the water hole B, and the other end is connected to the deformation member 433; the deformation member 433 moves toward the water hole B under the action of air pressure, and links the connecting rod 431 to open the water hole B, so as to change the pressure on the two end surfaces of the sealing diaphragm 41; wherein, the elastic member is used to drive the connecting rod 431 to reset and block the water hole B; the leakage channel 18 is connected with the water hole B.

[0065] It also includes an air pressure switch (not shown in the figure), which is installed outside the water tank and is sealed to the housing 11 through an air pipe, and acts on the deformable member 433 through air pressure.

[0066] More specifically, the active surface 221 of the inner wall of the movable valve sleeve 22 is arranged in a wave shape and forms at least two parking positions (i.e., inner recesses 221A and 221B); wherein, when the movable valve sleeve 22 moves axially and the radially abutting pressing member 241 falls on the parking position of the active surface 221, the channel 21A is opened or blocked, so as to link the blocking component 3 to open or block the water outlet 15.

[0067] More specifically, in order to improve the sealing performance and friction resistance, a V-shaped sealing member 6 is provided, which is sleeved on the outer peripheral annular groove of the movable valve sleeve 22 and acts on the inside of the pressure chamber 16, so that the movable valve sleeve 22 can move axially in the pressure chamber 16 in a sealed manner, thereby ensuring that the movable valve sleeve 22 can move more smoothly in the pressure chamber 16, and the entire structure will not fail due to water leakage;

[0068] Furthermore, the plurality of leakage channels 18 include a first leakage channel 18A, a second leakage channel 18B and a third leakage channel 18C;

[0069] The first drain channel 18A is used to discharge the water flow in the auxiliary chamber 17; when the switch group is turned on, the water in the auxiliary chamber 17 and the second pressure stabilizing chamber 42 is discharged to open the conduction between the water inlet 14 and the pressure chamber 16;

[0070] The second drain channel 18B is connected to the channel 21A and is used to discharge the water in the first pressure-stabilizing chamber 31; after the channel 21A is opened, the water in the first pressure-stabilizing chamber 31 is discharged from the housing 11, thereby changing the pressure of the sealing lip 32 to smoothly open the water outlet 15;

[0071] The third leakage channel 18C is connected to the pressure relief chamber and is used to discharge the water flow in the pressure relief chamber. After this part is opened, the first elastic member 23 can slowly open and push the movable valve sleeve 22 to slowly move, otherwise the movable valve sleeve 22 cannot move. In order to ensure the stability of the entire structure and not be disturbed by external water pressure, a flow regulating valve 7 is also installed in the third leakage channel 18C to adjust the water outlet area of ​​the third leakage channel 18C to adjust the discharge speed of the pressure chamber 16.

[0072] During actual assembly and use,

[0073] like Figure 1-8 As shown, this embodiment is illustrated by taking a toilet flushing assembly equipped with a flushing water supply valve as an example, which includes the following parts: at least two triangular valves (not shown in the figure), a water pump 9, a water channel switching valve 8, a connecting pipe 91, a shell 11, a base 12, a top cover 13, a water inlet 14, a water outlet 15, a pressure chamber 16, an auxiliary chamber 17, a plurality of discharge channels 18, an adjustment seat 21, a movable valve sleeve 22, a first elastic member 23, an elastic switching structure 24, a pressing member 241, a movable frame 242, a second elastic member 243, a sealing lip 32, a blocking assembly 3, a switch assembly 4, a sealing diaphragm 41, a second pressure stabilizing chamber 42, a drive group 43, a V-shaped sealing member 6, a flow regulating valve 7 and an air pressure switch (not shown in the figure);

[0074] During assembly:

[0075] (1) The injection molded adjustment seat 21 is buckled onto the movable frame 242, so that the movable frame 242 can swing relative to the adjustment seat 21 lever; then the pressing member 241 is installed on one side of the movable frame 242. It should be noted that the pressing member 241 is movable, so that it can still maintain the holding state during the swinging process of the movable frame 242 lever. Of course, the pressing member 241 and the movable frame 242 can also be integrally formed, and the pressing member 241 can also achieve the same effect. However, the pressing member 241 is movable, which has higher reliability and precision.

[0076] Then, a sealing plug is arranged at the other end of the movable frame 242 and is arranged opposite to the channel 21A; finally, two ends of the second elastic member 243 (i.e., a spring) are pressed against the adjustment seat 21 and the pressing member 241 respectively;

[0077] (2) After the V-shaped sealing member 6 is sleeved on the outer periphery of the movable valve sleeve 22, the first elastic member 23 (spring) is installed on the movable valve sleeve 22. It should be noted that the elastic force of the first elastic member 23 is set at the factory, thereby ensuring the speed of the subsequent movement of the first elastic member 23 pushing the movable valve sleeve;

[0078] (3) The movable valve sleeve 22 and the adjusting seat 21 are sealed and installed together from the opening of the pressure chamber 16;

[0079] (4) A sealing lip 32 is provided on the base 12 at the water inlet of the water outlet 15, and the lip edge of the sealing lip 32 is pressed between the adjustment seat 21 and the base 12; at this time, the sealing lip 32 separates the water inlet 14, the water outlet 15 and the first pressure-stabilizing chamber 31, and water flows into the first pressure-stabilizing chamber 31 from the drainage hole 31A of the sealing lip 32; after assembly, the housing 11 and the base 12 are fixed;

[0080] (5) The sealing diaphragm 41 and the connecting rod 431 connected to the deformable member 433 are also installed at the upper (i.e., top) position of the housing 11. One end of the connecting rod 431 is located in the second pressure-stabilizing chamber 42 near one end of the sealing diaphragm 41, and the other end is sleeved with a third elastic member 432 (spring) and connected to the deformable member 433. It should be noted that after the top cover 13 is installed, a certain gap is formed between the top cover 13 and the deformable member 433, just like an air cavity. Once pressurized gas is injected, the deformable member 433 can be deformed accordingly, thereby driving the connecting rod 431 to open the water hole B downward, and the reset is driven by the third elastic member 432. With the support of the deformable member 433 and the third elastic member 432, rapid reset is achieved;

[0081] (6) After the top cover 13 is fixed to the housing 11, the air pressure valve (existing technology) is fixed to the toilet and connected to the top cover 13 through an air pipe. The air pressure generated by pressing can drive the deformation member 433 to move;

[0082] (7) The entire flushing water supply control valve is assembled; then the municipal water inlet pipe (not shown in the figure), the flushing water supply control valve and the water tank water supply valve are connected through the three-way valve, and the water from the municipal water inlet pipe enters the water tank water supply valve for water replenishment and water storage, and enters the water inlet part 14 at the same time. However, the flushing water supply control valve is not opened at this time, and the water flow can only achieve water replenishment;

[0083] (8) Similarly, a three-way valve and a connecting pipe 91 are used to connect the water pump 9, the flushing water supply control valve and the waterway switching valve 8, and a check valve is installed in the connecting pipe 91 to limit the mutual influence of water flow when the water pump 9 and the flushing water supply control valve work alone;

[0084] (9) The water channel switching valve 8 is connected to the brush ring water channel 51 and the main flushing water channel 52 of the toilet (toilet bowl) to complete the assembly of the entire flushing component.

[0085] When using:

[0086] (1) Figure 8 As shown, in the power-on state, the water pump 9 draws water from the water tank and enters the waterway switching valve 8, first supplies water to the brush circle waterway 51, and after flushing for a certain period of time, the water pump 9 is turned off, and the waterway switching valve 8 loses the water pressure impact, falls back and switches to the main flushing waterway 52 to open, and the water pump 9 is turned on again. At this time, the water flows into the main flushing waterway 52 for flushing, and is closed after flushing for a certain period of time, and reset to the original state again;

[0087] (2) When the power is off (power failure), the water pump 9 cannot work normally. Figure 5 As shown, the consumer only needs to press the air pressure valve (existing technology) once, and at this time a stream of pressurized gas is introduced into the air pressure chamber through the air pipe, pushing the deformable member 433 to move downward, and overcoming the spring force of the third elastic member 432, and after the linkage rod 431 moves downward, the water hole B is opened, and at this time, the water in the second pressure-stabilizing chamber 42 is discharged from the water hole B and the second leakage channel 18B, the pressure on one side of the sealing diaphragm 41 is small, and the water pressure on the water inlet 14 is large, pushing the fast top sealing diaphragm 41 to make the water flow quickly enter the pressure chamber 16, and quickly push the movable valve sleeve 22 to the bottom, this process time is very short, pushing the movable valve sleeve 22 to the bottom of the pressure chamber instantly;

[0088] After the consumer presses once and releases it, the deformable member 433 and the third elastic member 432 quickly reset, thereby closing the water hole B. At this time, the second pressure stabilizing chamber 42 is full of water, and the sealing diaphragm 41 closes the pressure chamber 16. At this time, the pressure chamber 16 is full of water. Figure 6 As shown;

[0089] (3) Figure 7As shown, a third leakage channel 18C is provided at the top side of the pressure chamber 16. The water flow area of ​​the third leakage channel 18C is small. Under the action of the first elastic member 23, the water flow is slowly discharged, and the movable valve sleeve 22 is opened and moved upward; during the upward movement, the wavy action surface 221 inside cooperates with the pressing member 241, and when it falls on the inner concave portion 221A (i.e., the parking position), the channel 21A is opened (of course, it can also be set in the opposite direction, and when it falls on the inner concave portion 221A, the channel 21A is closed, and both forms fall within the protection range), and the water flow of the first pressure-stabilizing chamber 31 flows into the channel 21A and flows out from the first leakage channel 18A. After the first pressure-stabilizing chamber 31 is depressurized, the water flow of the water inlet portion 14 pushes open the sealing lip 32, enters the water channel switching valve 8 from the water outlet portion 15, and enters the brush ring water channel 51 from the water channel switching valve 8 to flush water;

[0090] (4) As the movable valve sleeve 22 moves up slowly until it leaves the inner concave portion 221A, the movable frame 242 swings back to its original position, blocking the channel 21A. The water flow of the water inlet 14 enters the first pressure stabilizing chamber 31 again, and after it is filled with water, the water pressure on both sides of the sealing lip 32 is the same, and the water outlet 15 is sealed again. At this time, the water channel switching valve 8 falls back after losing the impact of the water flow, and switches to the main flushing channel 52 being opened and the brush ring water channel 51 being closed during the falling process;

[0091] (5) The movable valve sleeve 22 continues to move upward slowly and falls on another inner concave portion 221B (another parking position). The movable frame 242 swings again to open the channel 21A and similarly opens the sealing lip 32 to supply water to the waterway switching valve 8 and flush water from the main flushing channel 52; until the movable valve sleeve 22 moves upward and the pressing member 241 moves out of the inner concave portion 221B, the water outlet is closed;

[0092] During this process, water flows directly from the municipal pipeline, but it only supplies water. The change in water pressure will not affect the movement of the entire movable valve sleeve 22. The whole process is stable and constant. The elastic force value of the first elastic member 23, the water flow area of ​​the third leakage channel 18C, and the spacing between the inner recesses 221A and 221B (i.e., the parking position) are set to achieve sequential and constant intermittent water supply.

[0093] The present invention provides a flushing water supply control valve and a toilet flushing assembly for use in an off-electricity state, which have a simple structure, are easy to manufacture, easy to implement and have low cost; the flushing water supply control valve described in the present invention breaks the disadvantage that the traditional mechanical and electrically controlled valve bodies cannot be shared, and can still realize the flushing function in an off-electricity state; the flushing function here is not a simple switch flushing function, but a flushing function and effect with the following multiple effects, which are as follows: first, one-button opening (one press) can start flushing in sequence, that is, only one press is required to realize flushing of the brush circle water channel and the main flushing water channel in sequence, without multiple presses, and the experience is good; secondly, on the basis of one-button pressing The flushing time (i.e., the flushing volume) can be well controlled. After the switch assembly is turned on, the water flows into the movable valve sleeve in the pressure chamber to the bottom of the chamber, and quickly closes the connection between the water inlet and the pressure chamber. At this time, the water in the pressure chamber flows out from the discharge channel, and slowly squeezes the water in the chamber to be discharged under the action of the first elastic member. In this process, the movable valve sleeve rises slowly, and its upper acting surface cooperates with the elastic switching structure to open the channel, thereby linking the blocking assembly to open, and the water flows out from the water outlet, thereby realizing the flushing of the brush circle waterway; as the movable valve sleeve rises, the elastic switching structure is closed due to the position change of the acting surface, and at this time, the waterway switching valve switches its position to switch to the main flushing waterway for water outlet; and as the movable valve sleeve rises, the elastic switching structure is closed due to the position change of the acting surface, and at this time, the waterway switching valve switches its position to switch to the main flushing waterway for water outlet; The sleeve continues to rise, and the elastic switching structure is changed again to open the channel, and then the water outlet is opened again to discharge water, thereby realizing the water supply of the main flushing water channel; a very important improvement here is that the flushing time and flushing volume of the entire brush circle water channel and the main flushing water channel are set according to the position change of the movable valve sleeve, and the elastic force of the first elastic member dominates the speed of the position change of the movable valve sleeve. The elastic force of the first elastic member is relatively constant and stable, and the control of the entire flushing time is very uniform, and the flushing time and flushing volume of the brush circle water channel and the main flushing water channel will not be different each time. This is impossible to achieve in the existing structure because the existing structure is based on water pressure, and this water pressure is in a constantly fluctuating state. When the water pressure is high, the flushing time is long, and when the water pressure is low, the flushing time is short, and it cannot be quantified at all, and the constant time cannot be guaranteed. The user experience is extremely poor. The intermittent opening and closing of the method described in the present invention is no longer related to the water inlet pressure, and is constantly controlled. The flushing time (water volume) is set almost uniformly each time; furthermore, the volume of the entire structure is small, and there is no need to rely on the components of the water inlet float to operate; in summary, the flushing control valve described in the present invention simultaneously achieves small volume, one-button control and pressing once, can realize flushing of the circle water channel and the main flushing water channel in sequence, and constantly controls the flushing time and water volume each time, can still be used smoothly in the power-off state, and has a good user experience, and the entire product design concept and structure are very clever.

[0094] The above specification and description of the embodiments are used to explain the protection scope of the present invention, but do not constitute a limitation on the protection scope of the present invention.

Claims

1. A water supply control valve for flushing in a power-off state, characterized in that: The control valve comprises: a housing, a water control component, a blocking component and a switch component; The housing is provided with a water inlet, a water outlet, a pressure chamber, an auxiliary chamber and a plurality of drainage channels; the auxiliary chamber is provided with a switch assembly and is used for connecting or closing the pressure chamber with the water inlet; the pressure chamber is provided with a water supply and control assembly; a plugging assembly is provided between the water inlet of the water outlet and the pressure chamber; the pressure chamber and the auxiliary chamber are respectively depressurized and drained through the drainage channels; A water control assembly, comprising an adjusting seat, a movable valve sleeve, a first elastic member and an elastic switching structure, wherein the adjusting seat is installed in a pressure chamber and is provided with a passage connecting the blocking assembly and the pressure chamber; the movable valve sleeve moves in the pressure chamber under the action of water pressure and the first elastic member, and an action surface cooperating with the elastic switching structure is formed thereon; two ends of the first elastic member act on the adjusting seat and the movable valve sleeve respectively; the elastic switching structure is installed on the adjusting seat and abuts against the action surface of the movable valve sleeve, and opens and closes the passage at least twice as the position of the movable valve sleeve in the pressure chamber changes; A plugging component, which opens and closes the water inlet of the water outlet part in response to the pressure change of the pressure chamber; The switch assembly is mounted on the housing and is used to open and close the connection between the water inlet and the pressure chamber.

2. A water supply control valve for flushing in a power-off state as claimed in claim 1, characterized in that: After water enters the pressure chamber and the switch assembly is in a closed state, the blocking assembly opens the water outlets in sequence.

3. A water supply control valve for flushing in a power-off state as claimed in claim 1 or 2, characterized in that: The elastic switching structure includes a movable frame, a pressure piece and a second elastic piece. The movable frame is swingably mounted on the adjustment seat through its upper hinge part. One side is used to open and close the channel, and the other side cooperates with the pressure piece and the second elastic piece to act between the adjustment seat and the movable valve sleeve so that the pressure piece abuts against the action surface. The movable valve sleeve moves along the pressure chamber, and the action surface of its inner wall contacts and cooperates with the pressure piece, and swings along the position change on the action surface to link the movable frame to open and close the channel.

4. A water supply control valve for flushing in a power-off state as claimed in claim 3, characterized in that: The action surface is arranged in a wave shape and forms at least two parking positions; wherein, when the movable valve sleeve moves axially and the radially abutting pressure piece falls at the parking position of the action surface, the channel is opened or blocked, so as to link the blocking component to open or block the water outlet.

5. A water supply control valve for flushing in a power-off state as claimed in claim 4, characterized in that: It also includes a V-shaped sealing member, which is sleeved on the outer peripheral annular groove of the movable valve sleeve and acts on the inside of the pressure chamber to enable the movable valve sleeve to move axially and sealingly in the pressure chamber.

6. A water supply control valve for flushing in a power-off state as claimed in claim 4, characterized in that: The sealing assembly includes a sealing lip, which is covered on the water inlet of the water outlet; the regulating seat and the water outlet are separated by the sealing lip to form a first pressure-stabilizing chamber, and the first pressure-stabilizing chamber is connected to the channel of the regulating seat; wherein the sealing lip is provided with a drainage hole, which connects the first pressure-stabilizing chamber with the water inlet.

7. A water supply control valve for flushing in a power-off state as claimed in claim 4, characterized in that: The switch assembly includes a sealing diaphragm, a second pressure-stabilizing chamber and a drive group. The sealing diaphragm is installed in the auxiliary chamber and covers the entrance of the pressure chamber, and is provided with a water hole connecting the water inlet and the second pressure-stabilizing chamber. The drive group opens and closes the water hole under the action of external force, changes the pressure on the two end surfaces of the sealing diaphragm, so that the water inlet is connected or closed with the pressure chamber.

8. A water supply control valve for flushing in a power-off state as claimed in claim 7, characterized in that: The driving group includes a connecting rod, a third elastic member and a deformation member, one end of the connecting rod is used to open and close the water hole, and the other end is connected to the deformation member; the deformation member moves toward the water hole through the action of air pressure, and links the connecting rod to open the water hole to change the pressure on the two end surfaces of the sealing diaphragm; wherein the elastic member is used to drive the connecting rod to reset and block the water hole; the leakage channel is connected to the water hole.

9. A water supply control valve for flushing in a power-off state as claimed in claim 8, characterized in that: The invention also comprises an air pressure switch which is installed outside the water tank and is sealed to the shell through an air pipe and acts on the deformation member through air pressure.

10. A water supply control valve for flushing in a power-off state as claimed in claim 1, characterized in that: Each of the leakage channels includes a first leakage channel, a second leakage channel and a third leakage channel; the first leakage channel is used to discharge the water flow in the auxiliary chamber; the second leakage channel is connected to the channel and is used to discharge the water flow in the first pressure-stabilizing chamber; the third leakage channel is connected to the pressure relief chamber and is used to discharge the water flow in the pressure relief chamber.

11. A water supply control valve for flushing in a power-off state as claimed in claim 10, characterized in that: A flow regulating valve is also installed in the third leakage channel to adjust the water outlet area of ​​the third leakage channel to adjust the discharge speed.

12. A toilet flushing assembly, characterized in that: The flushing component includes an angle valve, a water pump, a water circuit switching valve, a connecting pipe and the flushing water supply control valve as described in any one of claims 1 to 11; the water inlet of the flushing water supply control valve is connected to the municipal pipeline, and the water outlet is connected to the angle valve; the water pump, flushing control valve and water circuit switching valve are respectively connected to the angle valve, so that the water pump and the flushing control valve intermittently supply water to the water circuit switching valve.

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