A water tank structure and a toilet structure

Abstract

The utility model discloses a water tank structure, include: water tank body and the water inlet valve of water supply to water tank body, water tank body has first cavity, flush work water level and water inlet valve starting water level, the first cavity is equipped with small water tank in, the second cavity is formed in small water tank, small water tank is at least partially located flush work water level below, in the water discharge process in first cavity, when the water level of first cavity drops to water inlet valve starting water level, water inlet valve can open water inlet, compared with the water tank body of not having small water tank of the utility model, the water of first cavity is less amount of discharge, can make water inlet valve open water inlet, let water tank body can promptly carry out the water replenishing action, therefore, the structure of the utility model can be favorable to water tank body after premoistening promptly water replenishing.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a water tank structure and a toilet structure. Background Technology

[0002] In modern bathroom fixtures, the toilet's water tank inlet control system plays a crucial role in flushing performance and water conservation. To improve user comfort and cleaning effectiveness, some high-end toilets are equipped with a pre-wetting function, which automatically releases a small amount of water to moisten the toilet bowl's inner walls before the user uses the toilet, reducing the adhesion of waste.

[0003] Because the water level in the toilet tank drops after the system completes pre-wetting, and water is not replenished in time, the actual amount of water available for flushing is reduced, affecting the flushing effect of the toilet. In fact, multiple flushes may be required due to insufficient water, resulting in a waste of water resources.

[0004] In view of this, the designer of this utility model developed this utility model. Utility Model Content

[0005] The main purpose of this utility model is to provide a water tank structure that helps the water tank body to be replenished with water in a timely manner after pre-wetting.

[0006] Another objective of this invention is to provide a toilet structure.

[0007] To achieve the above objectives, the present invention adopts the following solution:

[0008] A water tank structure includes: a water tank body and an inlet valve for supplying water to the water tank body. The water tank body has a first cavity, a flushing working water level, and an inlet valve activation water level. A small water tank is installed in the first cavity, and a second cavity is formed inside the small water tank. The small water tank is at least partially located below the flushing working water level. The structure also includes a control valve for controlling the communication between the first cavity and the second cavity. The inlet valve supplies water to the first cavity until the water level in the first cavity reaches the flushing working water level, at which point the inlet valve stops supplying water. When water is discharged from the first cavity, the control valve cuts off or partially cuts off the communication between the first cavity and the second cavity. During the discharge of water from the first cavity, when the water level in the first cavity drops to the inlet valve activation water level, the inlet valve can open to supply water.

[0009] In some embodiments, a connecting hole is formed at the bottom of the small water tank, and a control valve is installed in the connecting hole. The control valve selectively closes the connecting hole to control the connection between the first cavity and the second cavity.

[0010] In some embodiments, the water inlet valve is disposed in the first cavity. During the process of water entering the first cavity by the water inlet valve, the control valve opens the communication hole, allowing water from the first cavity to enter the second cavity. Alternatively, the water inlet valve is provided with a water supply pipe, through which the water inlet valve supplies water to the second cavity. When water is discharged from the first cavity, the control valve closes or partially closes the communication hole, cutting off the communication between the first cavity and the second cavity, or the water in the second cavity slowly flows to the first cavity.

[0011] In some embodiments, the bottom of the small water tank has two spaced-apart mounting posts, and the control valve has mounting shafts on both sides, the mounting shafts being hinged to the corresponding mounting posts.

[0012] In some embodiments, the control valve is a one-way valve with a plate-like structure. When the one-way valve partially closes the connecting hole, a leak is formed between the one-way valve and the connecting hole, and the water in the second cavity flows slowly to the first cavity through the leak.

[0013] In some embodiments, the inlet valve is installed in the first cavity, and the inlet valve is a pressure differential inlet valve controlled by a float.

[0014] In some embodiments, the small water tank is cup-shaped; a clearance space is provided on the outer periphery of the small water tank, and the water inlet valve is located within the clearance space.

[0015] In some embodiments, the small water tank is detachably installed within the first cavity.

[0016] In some embodiments, the top of the small water tank has an installation edge that abuts against the first cavity; the installation edge is located at one corner of the top of the small water tank, and a support platform is provided on the first cavity, with the installation edge abutting against the support platform.

[0017] A toilet structure includes: a toilet body and a water tank structure as described above installed inside the toilet body.

[0018] As can be seen from the above technical solution, this utility model, through the structural design of installing a small water tank in the first cavity, wherein the small water tank is at least partially located below the flushing working water level, when the water in the first cavity is discharged, the control valve cuts off or partially cuts off the connection between the first cavity and the second cavity. During the water discharge process in the first cavity, when the water level in the first cavity drops to the water inlet valve activation level, the water inlet valve can open to allow water to enter. Compared with a water tank body without a small water tank, this utility model, after performing the pre-wetting operation, discharges a relatively small amount of water from the first cavity, which is enough to open the water inlet valve to allow water to enter, so that the water tank body can replenish water in time. Therefore, the structure of this utility model is conducive to the water tank body being replenished with water in time after pre-wetting. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 This is a perspective view (1) of the water tank structure of this utility model.

[0021] Figure 2 This is a perspective view (2) of the water tank structure of this utility model.

[0022] Figure 3 This is a cross-sectional view of the water tank structure of this utility model.

[0023] Figure 4 This is an exploded view of the water tank structure of this utility model.

[0024] Figure 5 This is a cross-sectional view of the water tank structure of this utility model during the water intake process.

[0025] Figure 6 This is a cross-sectional view of the water tank structure of this utility model during the pre-wetting process.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] Water tank body 1, water inlet valve 2

[0028] First chamber 11, flushing water level 12

[0029] Inlet valve start-up water level 13 Support platform 14

[0030] Main bending card section 15

[0031] Small water tank 3

[0032] Second cavity 31, connecting hole 32

[0033] Mounting post 33 Mounting edge 34

[0034] 35 curved clearance section; 36 bent retaining section

[0035] One-way valve 4

[0036] Mounting shaft 41, drain outlet 42

[0037] Pipeline 5 Water pump 6

[0038] Lower support mounting block 7 Upper mounting block 8

[0039] Mounting hole 9, fastener 10. Detailed Implementation

[0040] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0042] Please see Figures 1 to 6As shown, this utility model discloses a water tank structure, including: a water tank body 1 and an inlet valve 2 for supplying water to the water tank body 1. The inlet valve 2 is a pressure differential inlet valve controlled by a float. The water tank body 1 has a first cavity 11, a flushing working water level 12, and an inlet valve activation water level 13. A small water tank 3 is installed inside the first cavity 11, and a second cavity 31 is formed inside the small water tank 3. The small water tank 3 is at least partially located below the flushing working water level 12. It also includes a control valve that controls the communication between the first cavity 11 and the second cavity 31. When water is discharged from the first cavity 11, the control valve cuts off or partially cuts off the communication. The connection between the first cavity 11 and the second cavity 31 is disconnected. When the water level in the first cavity 11 drops to the inlet valve activation level 13, the inlet valve 2 starts to supply water. When the water level in the water tank body 1 rises to the flushing working level 12, the water tank body 1 is full, and the inlet valve 2 stops supplying water. In other words, the inlet valve 2 supplies water to the first cavity 11 until the water level in the first cavity 11 reaches the flushing working level 12, at which point the inlet valve 2 stops supplying water. During the water discharge process in the first cavity 11, when the water level in the first cavity 11 drops to the inlet valve 2 activation level, the inlet valve 2 can open to supply water.

[0043] The water inlet valve 2 can be installed inside the first cavity 11.

[0044] Therefore, this utility model, through its structural design of installing a small water tank inside the first cavity 11, wherein the small water tank is at least partially located below the flushing working water level of the water tank body 1, when the water in the first cavity 11 is discharged, the control valve cuts off or partially cuts off the communication between the first cavity 11 and the second cavity 31. During the water discharge process in the first cavity, when the water level in the first cavity drops to the water inlet valve activation level, the water inlet valve can open to allow water to enter. Compared with a water tank body without a small water tank, this utility model allows for a smaller amount of water to be discharged from the first cavity, which is enough to open the water inlet valve and allow the water tank body to replenish water in a timely manner. Therefore, the structure of this utility model is beneficial for the water tank body to replenish water in a timely manner after pre-wetting.

[0045] In some embodiments, a connecting hole 32 is formed at the bottom of the small water tank 3. A control valve is installed in the connecting hole 32. The control valve selectively closes the connecting hole, controlling the connection between the first cavity 11 and the second cavity 31. The inlet valve 2 can supply water to the first cavity 11 and the second cavity 31. When water enters the water tank body 1, the inlet valve 2 simultaneously supplies water to the first cavity 11 and the second cavity 31 to the flushing working water level 12. Specifically, during the process of the inlet valve 2 supplying water to the first cavity 11, the control valve opens the connecting hole 32. Water in the first cavity 11 can enter the second cavity 31 through the connecting hole 32. When the water tank body 1 pre-wets the toilet body, the water level in the first cavity 11 drops rapidly to the inlet valve activation level 13, and the water in the second cavity 31 slowly flows out. In other words, when the water in the first cavity 11 is discharged, the control valve closes or partially closes the connecting hole 32, cutting off the connection between the first cavity 11 and the second cavity 31, or the water in the second cavity 31 slowly flows to the first cavity 11. Of course, in other embodiments, the water in the second cavity 31 may not be discharged into the first cavity 11.

[0046] In other embodiments, the inlet valve is provided with a water supply pipe (not shown), and the inlet valve supplies water to the second cavity 31 through the water supply pipe.

[0047] The control valve can be a one-way valve 4; when water enters the water tank body 1, the one-way valve 4 opens the connecting hole 32; when water exits the water tank body 1, the one-way valve 4 closes the connecting hole 32.

[0048] Furthermore, to facilitate the installation of the one-way valve 4, the bottom of the small water tank 3 has two spaced mounting posts 33, and the two sides of the one-way valve 4 are provided with mounting shafts 41, which are hinged to the corresponding mounting posts 33.

[0049] In some embodiments, the one-way valve 4 is a plate-shaped structure. When the one-way valve 4 partially closes the connecting hole 32, a water outlet 42 is formed between the one-way valve 4 and the connecting hole 32. During the normal flushing process of the toilet with the structure of this utility model, the water in the second cavity 31 can slowly flow out to the first cavity 11 through the water outlet 42.

[0050] In some embodiments, for ease of cleaning, the small water tank 3 is detachably installed in the first cavity 11; however, this is not a limitation, and the small water tank 3 may also be integrally fixed in the first cavity 11.

[0051] Furthermore, in order to facilitate the installation of the small water tank 3, the top of the small water tank 3 may have an installation edge 34, which abuts against the first cavity 11.

[0052] In some embodiments, the mounting edge 34 is provided at least at one corner of the top of the small water tank, and a support platform 14 is provided on the first cavity 11, and the mounting edge 34 is correspondingly supported on the support platform 14; thereby, the support platform 14 provides alignment and installation for the mounting edge 34 of the small water tank.

[0053] Preferably, the small water tank 3 can be cup-shaped, wherein the top of the small water tank 3 is open, the outer periphery of the small water tank 3 is provided with a clearance space, and the water inlet valve 2 is located in the clearance space.

[0054] Furthermore, one side wall of the small water tank 3 is formed with an arc-shaped clearance portion 32, which forms a clearance space for the water inlet valve 2 to be inserted.

[0055] Furthermore, a main bending locking part 15 is formed on one inner side wall of the water tank body 1, and a secondary bending locking part 36 is formed on the other side wall of the water cup 3. The secondary bending locking part 36 is aligned and locked into the main bending locking part 15 so as to facilitate the alignment and installation of the water cup 3 and the water tank body 1.

[0056] In addition, a lower support mounting block 7 is provided on the lower side of the water tank body 1. The lower support mounting block 7 has a plurality of mounting holes 9 distributed at intervals along the edge. The mounting holes 9 facilitate the insertion of the fastener 10 so that the lower side of the water tank body 1 can be fixed to the toilet body. The lower support mounting block 7 can be triangular, with one right-angled side and the top of the lower support mounting block 7 attached to the water tank body 1. Thus, the lower support mounting block 7 provides a firm lower support for the water tank body 1.

[0057] Furthermore, an upper mounting block 8 is provided on the upper side of the water tank body 1. The upper mounting block 8 also has mounting holes 9. The mounting holes 9 of the upper mounting block 8 facilitate the insertion of fasteners so as to fix the upper side of the water tank body 1 to the toilet body.

[0058] In some embodiments, the first cavity 11 is provided with a water outlet, which is connected to a water pump 6 via a pipe 5.

[0059] Furthermore, a toilet structure may include: a toilet body and a water tank structure of this utility model installed inside the toilet body.

[0060] In other embodiments, the toilet structure may further include: a toilet flushing system connected to the first cavity 11 of the water tank body 1, a water level sensing element disposed in the first cavity 11, and a controller connecting the water level sensing element, the inlet valve 2, and the toilet flushing system; the toilet flushing system receives a control command to execute flushing. When the toilet flushing system receives the control command to execute flushing, it first performs pre-wetting of the toilet body. When the water level sensing element senses that the water level in the first cavity 11 has dropped to or below the inlet valve activation water level 13, the inlet valve 2 opens to replenish water. After pre-wetting is completed, the toilet body is flushed. The inlet valve 2 continuously replenishes water to the first cavity 11 until flushing is completed and the water level sensing element senses that the water level in the first cavity 11 has risen to the flushing working water level 12, at which point the inlet valve 2 stops replenishing water. Here, the inlet valve can be a solenoid valve, etc.

[0061] In summary, the toilet structure of this utility model performs the following actions:

[0062] During the water intake process, the one-way valve 4 opens, keeping the water level in the small water tank 3 level with the water level in the main body 1, thus ensuring the stability of the flushing water level 12 in the main body 1.

[0063] During the pre-wetting process (1-2s), the one-way valve 4 is closed, and the water pump 6 operates to rapidly reduce the water level in the first chamber 11 to the inlet valve start-up level 13 or below. The water in the small water tank cup 3 slowly flows out from the drain port 42, and almost no water flows out of the small water tank 3. During the pre-wetting end time, the water level in the small water tank 3 remains basically unchanged. Preferably, when the water level in the first chamber 11 drops to the inlet valve start-up level 13, the pumped water is also about 0.2L. After the pre-wetting is completed, the inlet valve 2 can re-inject water, and the effective water storage in the water tank body 1 of the first chamber 11 quickly returns to the initial full state.

[0064] During normal flushing (around 10 seconds), the water in the small water tank 3 can flow completely out from the drain 42 into the first cavity 11 of the water tank body 1 without affecting the effective water storage capacity of the water tank body 1, thus ensuring the effective water storage capacity of the water tank body 1.

[0065] Therefore, by setting a small water tank 3 inside the water tank body 1, the effective water storage capacity of the water tank body 1 in this range becomes very small. Only a small amount of water needs to be drawn out, and the water level in the water tank body 1 can be quickly reduced to below the inlet valve activation water level 13. This allows the inlet valve 2 to be restarted after only a small amount of water needs to be drawn out, so that the toilet is pre-wetted (about 0.2L of water consumption), and the inlet valve 2 can then refill with water.

[0066] It should be understood that the various examples described above can be utilized in multiple directions, such as tilted, inverted, horizontal, vertical, etc., and in multiple configurations, without departing from the principles of this invention. The embodiments shown in the accompanying drawings are merely examples of effective application of the principles of this invention, and this invention is not limited to any specific details of these embodiments.

[0067] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A water tank structure, characterized in that, include: The system includes a water tank body and an inlet valve for supplying water to the water tank body. The water tank body has a first cavity, a flushing working water level, and an inlet valve activation water level. A small water tank is installed in the first cavity, and a second cavity is formed inside the small water tank. The small water tank is at least partially located below the flushing working water level. The system also includes a control valve for controlling the communication between the first cavity and the second cavity. The inlet valve supplies water to the first cavity until the water level in the first cavity reaches the flushing working water level, at which point the inlet valve stops supplying water. When water is discharged from the first cavity, the control valve cuts off or partially cuts off the communication between the first cavity and the second cavity. During the discharge of water from the first cavity, when the water level in the first cavity drops to the inlet valve activation water level, the inlet valve can open to supply water.

2. The water tank structure as described in claim 1, characterized in that: The bottom of the small water tank has a connecting hole, and the connecting hole is equipped with a control valve. The control valve selectively closes the connecting hole to control the connection between the first cavity and the second cavity.

3. The water tank structure as described in claim 2, characterized in that: The inlet valve is located in the first cavity. During the process of the inlet valve supplying water to the first cavity, the control valve opens the communication hole, allowing water from the first cavity to enter the second cavity. Alternatively, the inlet valve is equipped with a water supply pipe, through which the inlet valve supplies water to the second cavity. When water is discharged from the first cavity, the control valve closes or partially closes the communication hole, cutting off the connection between the first cavity and the second cavity, or the water in the second cavity slowly flows to the first cavity.

4. The water tank structure as described in claim 2, characterized in that: The control valve is a one-way valve with a plate-like structure. When the one-way valve partially closes the connecting hole, a leak is formed between the one-way valve and the connecting hole, and the water in the second cavity flows slowly to the first cavity through the leak.

5. The water tank structure as described in claim 1, characterized in that: The bottom of the small water tank has two spaced-apart mounting posts, and the control valve has mounting shafts on both sides, which are hinged to the corresponding mounting posts.

6. The water tank structure as described in claim 1, characterized in that: The inlet valve is installed in the first cavity, and the inlet valve is a pressure differential inlet valve controlled by a float.

7. The water tank structure as described in claim 1, characterized in that: The small water tank is cup-shaped; a clearance space is provided on the outer periphery of the small water tank, and the water inlet valve is located within the clearance space.

8. A water tank structure as described in any one of claims 1 to 7, characterized in that: The small water tank is detachably installed in the first cavity.

9. The water tank structure as described in claim 8, characterized in that: The top of the small water tank has an installation edge that abuts against the first cavity; the installation edge is located at at least one corner of the top of the small water tank, and a support platform is provided on the first cavity, with the installation edge abutting against the support platform.

10. A toilet structure, characterized in that, include: The toilet body and the water tank structure as described in any one of claims 1 to 9 installed inside the toilet body.

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