Flushing switching valve group and water tank suitable for intelligent pedestal pan in power failure state

Abstract

The utility model discloses a flushing switching valve group and a water tank suitable for an intelligent pedestal pan in a power failure state, comprising a linkage type double-delay mechanism which comprises a second water inlet path, a first delay cavity, a second delay cavity, a movable rod group and a driving piece; when the driving part moves between a stress state position and a loosening state position, the movable rod group opens the second water inlet channel, so that the second water inlet channel is communicated with one of two water outlet channels corresponding to the main flushing channel or the brush ring water channel, and the first time delay cavity and the second time delay cavity are filled; after the first delay cavity is filled to a manually set height, the first delay cavity acts on the switching structure to open the other water outlet path, so that the second water inlet path is communicated with the other water outlet path; the second time-delay cavity is communicated with the first time-delay cavity and is used for prolonging the conduction time of the second water inlet path and the other water outlet path; the flushing switching valve group and the water tank provided by the utility model solve the problem that the existing intelligent pedestal pan cannot realize potential energy and sequential flushing in a power-off state.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent toilets, in particular to a flushing switching valve group and a water tank suitable for intelligent toilets in a power outage state. Background Art

[0002] Currently, existing smart toilet flushing generally adopts two forms:

[0003] One is a water tankless toilet, which is directly connected to the municipal water through a water inlet pipe and opened and closed by an electrically controlled switch valve to achieve flushing of the toilet brush ring and main flushing water replenishment. However, this water tankless method cannot open the electrically controlled switch valve in a power outage, resulting in the flushing function of the toilet being unusable;

[0004] The other type is a toilet with a water tank. However, the existing water tank is a built-in water tank, that is, the water tank is built into the rear end of the toilet, and its height is lower than or flush with the smart cover. It is no longer like the high water level design of the traditional toilet. Although this type of water tank saves space and has high aesthetics, the water level in the water tank is low, and a high-power water pump is required to pump water to increase potential energy to meet the flushing needs; in addition, when there is a power outage or short circuit and the power supply cannot be supplied, the water pump cannot work to pump water, that is, flushing cannot be achieved, resulting in a poor user experience of this product;

[0005] To this end, some manufacturers set a manual switch in addition to the electric control switch valve to manually start flushing when the power is off. However, there is still a very important defect, that is, the flushing potential energy is insufficient and cannot be flushed cleanly, which leads to poor hygiene of the entire toilet. The main reasons are as follows: (1) The height difference between the water level and the toilet brush ring and the main flush position is too small, or even lower than the height of the brush ring. In this way, the water in the water tank cannot form flushing potential energy through diving; (2) After opening, the brush ring and the main flush are directly flushed at the same time. After the diversion, the potential energy is greatly reduced. The water flow then passes through the long and far brush ring waterway, and its potential energy is almost reduced to a flowing water state. There is no impact force, and the toilet dirt-bearing surface (commonly known as the pot surface) cannot be flushed cleanly; (3) The existing method cannot realize the flushing of the brush ring waterway, the main flush waterway, and the water replenishment in sequence and multiple times; (4) The flushing time cannot be adjusted;

[0006] In summary, the existing flushing switching valve group and water tank still need to be further improved to meet actual usage requirements. Utility Model Content

[0007] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a flushing switching valve group and a water tank suitable for an intelligent toilet in a power-off state, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problem that the existing intelligent toilet has no potential energy for flushing in a power-off state.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A flushing switching valve group suitable for a smart toilet in a power outage state, the flushing switching valve group includes a shell, a first water inlet, two water outlets corresponding to the toilet brush ring water channel and the main flushing water channel, a float and a switching structure, the switching structure is driven by the position change of the float to enable the two water outlets to be switched and connected to the first water inlet; it also includes a linkage double delay mechanism, which includes a second water inlet, a first delay chamber, a second delay chamber, a movable rod group and a driving member; the movable rod group is limited to the second water inlet position by the driving member; the driving member moves in a Between the stressed state position and the released state position, in the stressed state position, the movable rod group opens the second water inlet, which is used for the second water inlet to connect to one of the two water outlets corresponding to the main flushing water channel or the brush circle water channel, and to fill the first delay chamber and the second delay chamber, and after the first delay chamber is filled to a manually set height, it acts on the switching structure to open the other water outlet, so that the second water inlet is connected to the other water outlet; in the released state position, the second delay chamber is connected to the first delay chamber, which is used to extend the duration of connection between the second water inlet and the other water outlet.

[0010] Furthermore, it also includes a linkage structure, which is arranged at the water passage where the second water inlet is connected to the first delay chamber; one end of the linkage structure is exerted with force by a driving member, driving the water sealing member arranged at the other end to release the blockage, so as to open the connection between the second water inlet and the first delay chamber.

[0011] Furthermore, the linkage structure includes a first rod body, a first spring component and the water-sealing component; one end of the first rod body is exposed and is directly connected to or spaced apart from the driving component, and the other end is for the water-sealing component to be mounted; the first spring component is sleeved on the periphery of the first rod body so that when the driving component is in a released position, the water-sealing component of the first rod body remains in a blocked state.

[0012] Furthermore, an adjusting member is provided at one end of the first rod body close to the driving member, and the adjusting member is relatively displaced along the axial direction of the first rod body to adjust the spacing distance between the driving member and the first rod body.

[0013] Furthermore, the adjusting member is configured as a nut or a plurality of stacked and matched magnetic rings.

[0014] Furthermore, the movable rod group includes a second rod body, a water-retaining diaphragm, a sealing plug, a second spring member and a pressure relief hole; the water-retaining diaphragm is built into the shell, and the second water inlet path is divided into a water inlet section, a pressure stabilizing chamber and a water outlet section; the water-retaining diaphragm is also provided with a drainage hole for guiding the water in the water inlet section into the pressure stabilizing chamber; a sealing plug is sleeved on one end of the second rod body, and drives the sealing plug to open and close the pressure relief hole arranged in the shell; the other end of the second rod body is exposed to the shell and connected to the driving member; the two ends of the second spring member act between the shell and the second rod body respectively; wherein, the second rod body is subjected to the force transmitted by the driving member, drives the sealing plug to open the pressure relief hole, and drains and relieves the pressure of the pressure stabilizing chamber, so that the water-retaining diaphragm loses pressure and deforms, and opens the connection between the water inlet section and the water outlet section.

[0015] Furthermore, the sealing plug is built into the shell and cooperates with the position where the pressure relief hole is formed to form the second delay cavity; the second delay cavity is connected to the first extension cavity, the water outlet section and / or the outside of the shell.

[0016] Furthermore, the first delay chamber is directly connected to the switching structure or suspended above the switching structure, and drives the switching structure to move by gravity.

[0017] Furthermore, a water storage barrel is also provided in the first delay chamber, and the water storage barrel is respectively connected with the second water inlet, the second delay chamber, and the outside of the shell; the water storage barrel passes through the first delay chamber under the gravity of water and acts on the switching structure; wherein, the water flow area of ​​the channel connecting the water storage barrel with the second water inlet is larger than the water flow area of ​​the channel connecting the water storage barrel with the outside of the shell.

[0018] Furthermore, the first water inlet is configured as a water inlet connected to a water pump, and the water stored in the water tank is led to the water outlet through the water pump;

[0019] Furthermore, the first water inlet intersects and communicates with the water outlet section of the second water inlet; a one-way valve is also provided in the first water inlet to limit the water in the second water inlet from flowing back to the water pump.

[0020] Furthermore, the second water inlet is configured as a water inlet connected to a municipal pipeline.

[0021] A water tank comprises a tank body and a water inlet valve installed in the tank body; it also comprises the flushing switching valve group, which is installed in the tank body and connects a second water inlet passage with a water inlet pipe of the water inlet valve; the water inlet pipe is connected to a municipal pipeline.

[0022] From the above description of the utility model, it can be seen that compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model provides a flushing switching valve group and a water tank suitable for an intelligent toilet in a power-off state. The flushing switching valve group and the water tank are simple in structure, easy to manufacture, easy to implement and low in cost, and solve the problem that the existing intelligent toilet has no potential energy for flushing in a power-off state. The flushing switching structure of the utility model not only maintains the intelligent toilet to flush when it is powered on, but also can switch to mechanical flushing in the event of a power outage (power-off state). Under the premise of this guarantee function, it also breaks through the one-button start (drive) to realize the sequential and controlled flushing of the three flushing functions of the brush circle water channel, the main flushing water channel and the water replenishment after flushing. More importantly, the water potential energy of the sequentially controlled flushing (on the basis of the existing low water tank) can also remain strong, which is not available in the existing flushing switching valve group for intelligent toilets. In addition, the utility model adopts a linkage double delay mechanism which is small in size and occupies little space in the water tank, and does not affect the water tank. The water storage capacity and the two delay chambers are cleverly designed and are linked with the second water inlet, which not only greatly reduces the pressing force of one-button start (i.e., operating the driving member), but also has a close linkage relationship among the various parts. After pressing, the second water inlet is opened to let in water first, and then the connection between the second water inlet and the first delay chamber is opened with a delay, so that one of the water channels (such as the brush circle water channel) has enough flushing time. At the same time, after the first delay chamber is filled, it drives the switching structure to open another water channel (such as the main flushing water channel) for flushing, and releases the action on the driving member. After the flushing is completed, the water in the second delay chamber is slowly discharged into the first delay chamber and the water tank, that is, after extending the flushing closure of the main flushing water channel, the second water inlet can be slowly closed to provide sufficient water flow for water replenishment to form a water seal. The flushing of each water channel is independent and the flushing time can be adjusted, thus ensuring the potential energy of the entire flushing process, and the flushing is clean and the degree of flushing is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the intelligent toilet with a flushing switching valve group according to the utility model;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the flushing switching valve group of the utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the flushing switching valve group of the utility model;

[0028] Figure 4 It is a cross-sectional view of the first water inlet passage for displaying the power supply state according to the utility model;

[0029] Figure 5 It is a cross-sectional view of the switching structure of the utility model;

[0030] Figure 6 It is a cross-sectional view of the flushing switching valve group of the utility model in the original state;

[0031] Figure 7 It is a cross-sectional view of the flushing switching valve group of the utility model in a pressed state;

[0032] Figure 8 This is a schematic diagram of the water inflow state of the flushing switching valve group of the utility model in the original state;

[0033] Fig. 9 It is a schematic diagram of the water inlet state when the flushing switching valve group of the utility model is in a pressed state. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the utility model, 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 utility model 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 utility model.

[0037] In the claims, specification and the above drawings of the utility model, 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.

[0038] In the claims, specification and drawings of the present utility model, if the terms "including", "having" and their variations are used, they are intended to mean "including but not limited to".

[0039] like Figure 1 As shown, the flushing switching valve group described in this embodiment is mainly used for intelligent toilets. The water tank 2 of the existing intelligent toilet 1 is mostly lower than the intelligent cover plate, that is, the low water tank 2 mode; the water tank 2 described in this embodiment includes a box body 3 and a water inlet valve 4 installed in the box body 3, and the flushing switching valve group 5. When assembling, the above components are respectively placed in the box body 3 (the existing box body 3 is generally injection molded and then inserted into the water tank position of the ceramic toilet), and then the water inlet valve 4 is connected to the municipal pipeline (not shown in the figure) through a connecting pipe, so that water inflow can be guaranteed;

[0040] like Figure 1 , 2 , 4-5, this embodiment is illustrated by taking an intelligent toilet equipped with a flushing switching valve group as an example, which includes an intelligent toilet, a water tank 2, a box body 3, a water inlet valve 4, a flushing switching valve group 5, a three-way piece 6, a connecting pipe 7, a water pump 8, a first water inlet path 9, a switching structure 10 and a floating bucket 11;

[0041] A tee piece 6 is installed inside the body 3 of the water tank 2, the water inlet of the tee piece 6 is connected to the municipal pipeline through a hose, and the other two outlets are respectively connected to the water inlet valve 4 and the connecting pipe 7 (it should be noted that this connecting pipe 7 is used to connect the second water inlet path); in this way, when the water inlet valve 4 is opened, municipal water can be introduced into the body 3, and can also be introduced into the second water inlet path 12. Since the second water inlet path 12 is in a blocked state, the water inlet valve 4 is only used to replenish water to the water tank 2 when there is electricity;

[0042] The water pump 8 is placed at the bottom of the box body 3, and is used to let the water in the water tank 2 enter the switching structure 10 through the first water inlet 9, and realize the water discharge of different water outlets 101 and 102 through the switching structure 10. It should be noted that the switching structure 10 adopts a lever-type switching structure 10 (this is the prior art); one end of the lever-type switching structure 10 is connected to the floating bucket 11. When the water pump 8 pumps out the water in the box body 3 for flushing, the water level continues to drop, and then the floating bucket 11 moves down with the change of the water level. This then drives the switching structure 10 to switch to another water outlet 102 for flushing. It should be noted that one of the water outlets 101 is in a normally open state (i.e., the water outlet connected to the brush circle water channel 13). When water enters the first water inlet 9, the brush circle water channel 13 is flushed first; as the position of the float 11 changes, it switches to another water outlet 102 (i.e., the water outlet 102 connected to the main flushing water channel 14) to flush the main flushing water channel 14. The above is the flushing process in the electrified state.

[0043] In addition, it should be noted that a one-way valve 15 (such as Figure 4 As shown in the figure, in order to save volume and space, the first water inlet 9 and the water outlet section of the second water inlet 12 are arranged to intersect (i.e., intersect and conduct) in this embodiment; and to prevent the water flow of the second water inlet 12 from flowing back to the water pump 8 when water is flowing in, and to reduce the water potential energy due to the backflow, a one-way valve 15 is used in the first water inlet 9 to prevent the water flow from flowing back to the water pump 8 when water is flowing in the second water inlet 12, and to prevent the water from being introduced into the water tank 2.

[0044] like Figure 3 , 5 As shown in 6, the flushing switching valve group 5 in this embodiment is used to start flushing manually when the water is cut off, that is, mechanical switch opening and closing;

[0045] It should be noted that a linkage double-delay mechanism is integrated on the basis of the above-mentioned electric control switching, and the overall volume is small and the stability is better;

[0046] The linkage type double delay mechanism comprises a second water inlet 12, a first delay chamber 16, a second delay chamber 17, a movable rod group 18 and a driving member 19;

[0047] One end of the second water inlet 12 is connected to the tee piece 6, and the other end is connected to the housing 20, and is connected to the water inlet position 21 of the switching structure 10;

[0048] The movable rod group 18 is limited to the position of the second water inlet 12 by the driving member 19, that is, the second movable rod group 18 is installed in the housing 20, and it can open or close the second water inlet 12 for water to flow; specifically, the movable rod group 18 includes a second rod body 22, a water-blocking diaphragm 23, a sealing plug 24, a second spring member 25 and a pressure relief hole 26;

[0049] A partition wall 27 is formed in the housing 20 at the passage through which the second water inlet 12 passes water. The partition wall 27 is blocked by the water-blocking diaphragm 23, and the second water inlet 12 is divided into a water inlet section 28 and a water outlet section 29. The water inlet section 28 is directly connected to the three-way piece 6 (that is, it is directly connected to the municipal pipeline), and the water outlet section 29 is connected to the water outlets 101 and 102 at the switching structure 10; the second water inlet 12 can be opened and closed for water to pass through by controlling the position change of the water-blocking diaphragm 23; this method not only has good water sealing stability, but also has a small opening and closing force, which reduces the control. The driving force when the water inlet section 28 is increased, and more importantly, the lateral volume is reduced, which is convenient for structural layout; the water retaining diaphragm 23 in this embodiment is arranged in a triangle with the water inlet section 28 and the water outlet section 29, the upper surface of the water retaining diaphragm 23 acts on the partition wall 27, and a pressure stabilizing chamber 30 is separated from the lower surface, and a drainage hole 31 (which is used to connect the water inlet section 28 and the pressure stabilizing chamber 30) is also provided on the water retaining diaphragm 23, and the water of the water inlet section 28 is introduced into the pressure stabilizing chamber 30 through the drainage hole 31. When the pressure stabilizing chamber 30 is filled with water, the water inlet section 28 and the water outlet section 29 are in a disconnected state;

[0050] It should be noted that the pressure-bearing area of ​​the water-retaining diaphragm 23 on one side of the pressure-stabilizing chamber 30 is larger than the pressure-bearing area on the other side. Therefore, when the pressure-stabilizing chamber 30 is filled with water, the corresponding pressure on one side of the pressure-stabilizing chamber 30 is greater than that on the other side. Therefore, the water-retaining diaphragm 23 cannot be deformed, and the connection between the water inlet section 28 and the water outlet section 29 cannot be opened.

[0051] The second rod body 22 is movably mounted in the housing 20 and is located below the pressure stabilizing chamber 30; the position where the second rod body 22 is mounted is connected to the pressure stabilizing chamber 30 through a pressure relief hole 26, and the water volume of the pressure stabilizing chamber 30 can be changed by opening and closing the pressure relief hole 26, that is, the water pressure of the pressure stabilizing chamber 30 can be controlled, and the deformation of the water retaining diaphragm 23 can be controlled in linkage;

[0052] A sealing plug 24 is sleeved on one end of the second rod body 22, and drives the sealing plug 24 to open and close the pressure relief hole 26 provided in the housing 20; the other end of the second rod body 22 is exposed outside the housing 20 and connected to the driving member 19; during installation, the second spring member 25 is sleeved on the second rod body 22 first, and after installation, the two ends of the second spring member 25 act between the housing 20 and the second rod body 22 respectively, so that the second rod body 22 can be driven to reset; it should be noted that a sealing plug 24 is also installed at the end of the second rod body 22, and the sealing plug 24 is used to open and close the pressure relief hole 26, and the sealing plug 2 4 Soft properties, improve the sealing effect; the sealing plug 24 here can be divided into a plug body 241 and a sealing member 242, the sealing member 242 is installed on the outer peripheral wall of the second rod body 22, and cooperates with the inner wall of the shell 20 to form a sealing effect; and the plug body 241 is directly fixed to the end of the second rod body 22 and faces the pressure relief hole 26, so that it is better to realize the manufacturing and the water sealing effect is better; not only that, the part between the sealing plug 24 and the pressure relief hole 26 forms the second delay chamber 17, and the second delay chamber 17 is connected with the first delay chamber 16 through the connecting pipe 7;

[0053] The other end of the second rod body 22 is connected to the driving member 19. Under the force of the driving member 19, the sealing plug 24 on the second rod body 22 is driven to open the pressure relief hole 26, and drain and pressure-relieve the pressure-stabilizing chamber 30, so that the water retaining diaphragm 23 loses pressure and deforms, and the connection between the water inlet section 28 and the water outlet section 29 is opened.

[0054] In the housing 20 and above the water retaining diaphragm 23 (i.e., at the water outlet section 29 of the second water inlet 12 and located at the water passage A where the second water inlet 12 is connected to the first delay chamber 16), the driving member 19 exerts a force on one end of the linkage structure, driving the water sealing member 34 disposed at the other end to release the blockage, so as to open the connection between the second water inlet 12 and the first delay chamber 16;

[0055] The linkage structure of this embodiment includes a first rod 32, a first spring member 33 and the water sealing member 34;

[0056] One end of the first rod 32 is exposed and is directly connected to or spaced apart from the driving member 19, and the other end is provided for the water sealing member 34 to be mounted; the first spring member 33 is sleeved on the outer periphery of the first rod 32, and keeps the water sealing member 34 of the first rod 32 in a blocked state; this embodiment is illustrated by taking the first rod 32 and the driving member 19 spaced apart as an example, so that the first rod 32 is delayed to open first, that is, the driving member 19 first drives the second rod 22 to move, opens the water inlet, and then acts on the first rod 32, so that the pressing force (operating force) at the start of the drive is smaller;

[0057] Moreover, an adjusting member 35 can be provided at one end of the first rod body 32 close to the driving member 19, and the adjusting member 35 can be relatively displaced along the axial direction of the first rod body 32 to adjust the distance between the driving member 19 and the first rod body 32; in this embodiment, a nut is used as an example, and of course, it can also be a plurality of stackable magnetic rings (not shown in the figure), and the distance between the nut and the driving member 19 can be adjusted by threading the nut with the first rod body 32, so that the stroke of the driving member 19 acting on the first rod body 32 can be adjusted, that is, the time of interaction between the two can be adjusted, so that the flushing time of the corresponding water outlets 101 and 102 can be adjusted; this design is very clever and not only reduces the initial operating force, but also can adjust the delay time according to demand in the delay function, that is, adjust the flushing time.

[0058] The first delay chamber 16 is directly connected to the switching structure 10 or suspended above the switching structure 10, and drives the switching structure 10 to move by gravity; it should be noted that the first delay chamber 16 is an active chamber, and after water flows into it from the first rod body 32, it acts on the rocker arm 36 of the switching structure 10 by gravity; this embodiment takes the lever structure as an example of the switching structure 10, that is, after the first delay chamber 16 is filled or injected with a manually set weight, the first delay chamber 16 can press down on the rocker arm 36 connecting the float 11 and the switching member, and the switching of the water outlets 101 and 102 is achieved by pressing the rocker arm 36.

[0059] In this embodiment, in order to reduce the difficulty of manufacturing, a water barrel 37 is further provided in the first delay chamber 16, and the water barrel 37 is used to act on the rocker arm 36 of the switching structure 10, so that the water barrel 37 is connected with the second water inlet 12, the second delay chamber 17 and / or the outside of the shell 20 respectively; the water barrel 37 passes through the first delay chamber 16 under the gravity of water and acts on the switching structure 10; wherein, the water flow area of ​​the channel connecting the water barrel 37 with the second water inlet 12 is larger than the water flow area of ​​the channel connecting the water barrel 37 with the outside of the shell 20, so that the water barrel 37 can delay driving the rocker arm 36.

[0060] The driving member 19 is arranged in an I-shape, with the upper end located above the first rod body 32 and pressed against the first rod body 32 as the driving member 19 moves, while the lower end is directly fixedly connected to the second rod body 22. When the driving member 19 moves, it directly drives the second rod body 22 to move, and has no delay function; the driving member 19 of this embodiment moves between a force state position A and a release state position B. In the force state position A (that is, the driving member 19 moves downward under force), the second rod body 22 of the movable rod group 18 moves to open the second water inlet 12, so that the second water inlet 12 is connected to the main flushing channel 14 or the brush circle water One of the channels 13, and the first delay chamber 16 and the second delay chamber 17 are filled, and after the first delay chamber 16 is filled (the filling here refers to the filling to a manually set height or weight, and does not mean the situation where the entire water storage barrel 37 is filled to the highest height), it acts on the switching structure 10 to open another water outlet 102 (that is, the water outlet 102 corresponding to the main flushing channel), so that the second water inlet 12 is connected to the other water outlet 102; in the released state position B, the second delay chamber 17 is connected and the internal water flow is introduced into the first delay chamber 16, which is used to extend the time for the second water inlet 12 to be connected to another water channel.

[0061] In actual use: there are two states, namely, power-on state and power-off (i.e. power failure) state;

[0062] In the powered state (such as Figure 1-5 As shown in the figure, the water inlet valve 4 opens according to the water level change in the water tank 2 body 3 (this water level change can be determined according to the position change of the float 11), and the water from the municipal pipeline directly enters the body 3 until the water in the water tank 2 is filled. When the water is filled, the float 11 also moves up and switches to the brush ring waterway 13 which is normally open;

[0063] When flushing is needed, the water pump 8 is started (since it is the water pump 8 that pumps water, even the low water tank 2 has great potential energy, so it can flush with potential energy), and the water pump 8 at the bottom of the box body 3 pumps water upward, reaches the switching structure 10 through the first water inlet 9, and first flushes from the normally open brush ring waterway 13; as the stored water in the water tank 2 is continuously pumped out for flushing, the float 11 also moves downward as the water level drops, and after reaching a certain water level, it drives the swing rod 36 to move, closes the originally normally open brush ring waterway 13, and opens the outlet 102 of the main flushing waterway 14, so as to realize flushing of the main flushing waterway 14; as the water in the water tank 2 is pumped out and the water level drops to a manually set height, the water pump 8 stops working, and then the water inlet valve 4 opens again to inlet water according to the change in the position of the float 11, and the water in the water tank 2 is filled again;

[0064] It should be explained here that during the water intake process of the water inlet valve 4, the water flows through the tee 6 and is divided into two paths after entering the tee 6. One path enters the second water inlet path 12, but because the water retaining diaphragm 23 is not opened, water can only be supplied to the other path (i.e., inside the water tank 2).

[0065] When power is off or lost (such as Figure 2 , 6 -9), the water pump 8 has no electricity and cannot work normally, the water in the water tank 2 cannot be pumped out, even if the water tank 2 is pumped out by other structures, it is impossible to achieve flushing in sequence with strong potential energy, and it is even more impossible to control the flushing time and flushing volume; the sequence here means that the brush circle water channel 13 first flushes the toilet pot surface, and then the main flushing water channel 14 strongly flushes the dirt and forms a siphon, and the subsequent water replenishment forms a water seal, and the linkage double extension mechanism described in this embodiment can achieve one-button start, sequentially flush each water channel, maintain the potential energy of water during flushing, and adjust the flushing time of each water channel, as follows:

[0066] (1) Pressing the switch member provided on the edge of the toilet bowl can drive the driving member 19 to move, and the I-shaped driving member 19 moves downward, and the second rod body 22 fixed thereto moves downward first, and at this time, the second spring member 25 (compressed downward) and the sealing plug 24 located inside the housing 20 move downward accordingly, and the sealing plug 24 also opens the pressure relief hole 26;

[0067] (2) After the pressure relief hole 26 is opened, the water in the pressure stabilizing chamber 30 connected thereto enters the second delay chamber 17. At this time, the pressure in the pressure stabilizing chamber 30 changes (decreases), causing the pressure on the upper and lower surfaces of the water retaining diaphragm 23 to lose balance. The upper surface is affected by the water pressure from the second water inlet 12, which in turn impacts the water retaining diaphragm 23 to move downward, so that the water inlet section 28 of the second water inlet 12 is connected to the water outlet section 29. It should be noted here that the second water inlet 12 is directly connected to the municipal water, and then directly introduced into the municipal pipeline, so that the water flow is continuous and is not limited by the water storage area of ​​the water tank 2.

[0068] (3) During the downward movement of the driving member 19, its upper end also moves downward and acts on the first rod body 32, which in turn compresses the first spring member 33 sleeved on the first rod body 32, and the water sealing member 34 on the first rod body 32 also moves downward, opening the connection between the water outlet section 29 and the first delay chamber 16. At this time, the water flow in the water outlet section 29 not only flows into the switching structure 10 but also flows into the water storage barrel 37 of the first delay chamber 16. Since the water flow area of ​​the channel connecting the water outlet section 29 and the water storage barrel 37 is small, the water flows slowly into the water storage barrel 37, so that most of the water flows first from the switching structure 10 into the brush circle water channel 13, giving sufficient flushing (flushing) time and flow rate;

[0069] (4) When the amount of water in the water storage bucket 37 continues to increase, the weight becomes heavier, until it falls and presses on the swing rod 36 of the switching structure 10, causing the swing rod 36 to move downward, thereby causing the switching structure 10 to operate and open the main flushing channel 14. The water then flushes from the main flushing channel 14. In this process, the flushing potential energy is strong enough, the incoming water flow is not diverted by other water channels, and there is enough time and flow for flushing;

[0070] (5) The driving member 19 is released, and under the action of the second spring member 25, the second rod 22 is driven to move upward, and at this time, the driving member 19 and the first rod 32 (under the action of the first spring member 33) both move upward accordingly; it should be noted here that the second rod 22, which originally quickly resets, cannot quickly close the pressure relief hole 26 under the action of the second delay chamber 17, and the water shut-off time is extended, that is, a longer time is given to flush and replenish the main flushing channel 14; the details are as follows:

[0071] Since water from the pressure-stabilizing chamber 30 enters the second delay chamber 17 through the pressure relief hole 26, the second delay chamber 17 is filled with water, which makes it more difficult for the sealing plug 24 to reset, thereby improving stability while maintaining the water-in state; when it is necessary to close, since there is still water in the second delay chamber 17, the reverse force of the second spring member 25 can only act slowly on the second rod body 22, and the water in the second delay chamber 17 flows toward the first delay chamber 16 (that is, directly flows through the first delay chamber 16 and is discharged into the water tank 2 through the first delay chamber 16), the pipe connecting the first delay chamber 16 and the second delay chamber 17 is also connected to the water outlet section 29 (that is, flows to the water outlet section 29), or is directly discharged to the water tank 2, all three forms are possible; here, the second delay chamber 17 prevents the second rod body 22 from resetting quickly, and the sealing plug 24 needs to seal the pressure relief hole 26 after the second delay chamber 17 is emptied;

[0072] After the pressure relief hole 26 is blocked, water flows into the pressure stabilizing chamber 30 from the drainage hole 31. After the pressure is filled, the pressure on the two lower surfaces of the water retaining diaphragm 23 is greater than the pressure on the upper surface, so the water inlet section 28 and the water outlet section 29 are blocked again, and the water inlet is stopped;

[0073] It should be noted that the first rod 32 is reset under the action of the first spring member 33, and the water sealing member 34 is blocked. At this time, the water storage barrel 37 is no longer continuously inflowing, so the water in the water storage barrel 37 is discharged outward, and the weight is continuously reduced. The water flowing into the second delay chamber 17 is transferred to the water storage barrel 37 to supplement a little water, so that the time for the water storage barrel 37 to press against the swing rod 36 is extended, so that the main flushing channel 14 can be flushed for a longer time and more water can be left to form a water cover.

[0074] Until the water in the water storage bucket 37 is discharged, the swing rod 36 loses the resistance and is switched to the original position again due to the buoyancy of the float bucket 11, that is, the brush circle waterway 13 is opened.

[0075] It should also be noted here that a nut is provided at the upper end of the first rod body 32. The distance between the first rod body 32 and the driving member 19 can be adjusted by the nut, that is, the time for the water storage barrel 37 to enter water can be adjusted, that is, the time for the swing rod 36 to move can be adjusted, thereby changing the flushing time of the brush circle water channel 13. It can be adjusted through a simple spiral, and its structural design is ingenious.

[0076] The utility model provides a flushing switching valve group and a water tank suitable for an intelligent toilet in a power-off state. The flushing switching valve group and the water tank are simple in structure, easy to manufacture, easy to implement and low in cost, and solve the problem that the existing intelligent toilet has no potential energy for flushing in a power-off state. The flushing switching structure of the utility model not only maintains the intelligent toilet to flush when it is powered on, but also can switch to mechanical flushing in the event of a power outage (power-off state). Under the premise of this guarantee function, it also breaks through the one-button start (drive) to realize the sequential and controlled flushing of the three flushing functions of the brush circle water channel, the main flushing water channel and the water replenishment after flushing. More importantly, the water potential energy of the sequentially controlled flushing (based on the existing low water tank) can also remain strong, which is not available in the existing flushing switching valve group for intelligent toilets. In addition, the utility model adopts a linkage double delay mechanism which is small in size and occupies little space in the water tank, and does not affect the water tank. The water storage capacity and the two delay chambers are cleverly designed and are linked with the second water inlet, which not only greatly reduces the pressing force of one-button start (i.e., operating the driving member), but also has a close linkage relationship among the various parts. After pressing, the second water inlet is opened to let in water first, and then the connection between the second water inlet and the first delay chamber is opened with a delay, so that one of the water channels (such as the brush circle water channel) has enough flushing time. At the same time, after the first delay chamber is filled, it drives the switching structure to open another water channel (such as the main flushing water channel) for flushing, and releases the action on the driving member. After the flushing is completed, the water in the second delay chamber is slowly discharged into the first delay chamber and the water tank, that is, after extending the flushing closure of the main flushing water channel, the second water inlet can be slowly closed to provide sufficient water flow for water replenishment to form a water seal. The flushing of each water channel is independent and the flushing time can be adjusted, thus ensuring the potential energy of the entire flushing process, and the flushing is clean and the degree of flushing is better.

[0077] The above specification and description of the embodiments are used to explain the protection scope of the utility model, but do not constitute a limitation on the protection scope of the utility model.

Claims

1. A flushing switching valve group suitable for a smart toilet in a power outage state, the flushing switching valve group comprises a housing, a first water inlet, two water outlets corresponding to the toilet brush ring water channel and the main flushing water channel, a float and a switching structure, the switching structure is driven by the position change of the float to enable the two water outlets to be switchedly connected with the first water inlet; characterized in that: It also includes a linkage double delay mechanism, which includes a second water inlet, a first delay chamber, a second delay chamber, a movable rod group and a driving member; the movable rod group is limited to the second water inlet position by the driving member; The driving member moves between a stressed state position and a released state position. In the stressed state position, the movable rod group opens the second water inlet, which is used for the second water inlet to connect to one of the two water outlets corresponding to the main flushing water channel or the brush circle water channel, and to fill the first delay chamber and the second delay chamber, and after the first delay chamber is filled, it acts on the switching structure to open the other water outlet, so that the second water inlet is connected to the other water outlet; in the released state position, the second delay chamber is connected to the first delay chamber, which is used to extend the duration of connection between the second water inlet and the other water outlet.

2. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 1, characterized in that: It also includes a linkage structure, which is arranged at the water passage where the second water inlet is connected to the first delay chamber; a driving member applies force to one end of the linkage structure, driving a water sealing member arranged at the other end to release the blockage, so as to open the connection between the second water inlet and the first delay chamber.

3. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 2, characterized in that: The linkage structure includes a first rod body, a first spring component and the water sealing component; one end of the first rod body is exposed and is directly connected to or spaced apart from the driving component, and the other end is for the water sealing component to be mounted; the first spring component is sleeved on the periphery of the first rod body so that when the driving component is in a released position, the water sealing component of the first rod body remains in a blocked state.

4. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 3, characterized in that: An adjusting member is also installed at one end of the first rod body close to the driving member, and the adjusting member is relatively displaced along the axial direction of the first rod body to adjust the spacing distance between the driving member and the first rod body.

5. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 4, characterized in that: The adjusting member is configured as a nut or a plurality of stacked and matched magnetic rings.

6. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in any one of claims 1 to 5, characterized in that: The movable rod group includes a second rod body, a water-retaining diaphragm, a sealing plug, a second spring member and a pressure relief hole; the water-retaining diaphragm is built into the shell, and the second water inlet path is divided into a water inlet section, a pressure-stabilizing chamber and a water outlet section; the water-retaining diaphragm is also provided with a drainage hole for guiding the water in the water inlet section into the pressure-stabilizing chamber; a sealing plug is sleeved on one end of the second rod body, and drives the sealing plug to open and close the pressure relief hole arranged in the shell; the other end of the second rod body is exposed to the shell and connected to the driving member; the two ends of the second spring member act between the shell and the second rod body respectively; wherein, the second rod body is subjected to the force transmitted by the driving member, drives the sealing plug to open the pressure relief hole, and drains and relieves the pressure of the pressure-stabilizing chamber, so that the water-retaining diaphragm loses pressure and deforms, and opens the connection between the water inlet section and the water outlet section.

7. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 6, characterized in that: The sealing plug is built into the shell and cooperates with the position where the pressure relief hole is formed to form the second delay chamber; The second delay cavity is connected to the first extension cavity, the water outlet section and / or the outside of the shell.

8. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in any one of claims 1 to 5, characterized in that: The first delay chamber is directly connected to the switching structure or suspended above the switching structure, and drives the switching structure to move through gravity.

9. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 8, characterized in that: A water storage barrel is also provided in the first delay chamber, and the water storage barrel is respectively connected with the second water inlet, the second delay chamber, and the outside of the shell; the water storage barrel penetrates the first delay chamber under the gravity of water and acts on the switching structure; wherein the water flow area of ​​the channel connecting the water storage barrel with the second water inlet is larger than the water flow area of ​​the channel connecting the water storage barrel with the outside of the shell.

10. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 1, characterized in that: The first water inlet is configured as a water inlet connected to a water pump, and the water stored in the water tank is led to the water outlet through the water pump.

11. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 10, characterized in that: The first water inlet intersects and communicates with the water outlet section of the second water inlet; a one-way valve is also provided in the first water inlet to limit the water in the second water inlet from flowing back to the water pump.

12. A flushing switching valve assembly suitable for an intelligent toilet in a power outage state as claimed in claim 11, characterized in that: The second water inlet is configured as a water inlet connected to a municipal pipeline.

13. A water tank, comprising a tank body and a water inlet valve installed in the tank body; characterized in that: It also includes a flushing switching valve group as described in any one of claims 1 to 12, which is installed in the box body and connects the second water inlet path with the water inlet pipe of the water inlet valve; the water inlet pipe is connected to the municipal pipeline.

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