A toilet tank

Abstract

The utility model relates to a kind of flushing toilet water tank, including tank, the water inlet valve is connected to the water inlet end of the tank, first water replenishing connector is equipped on the water inlet valve, the water outlet end of the tank is equipped with first drain pipe, drainage assembly is equipped in the tank, the one end of first drain pipe is equipped with cover, cover is equipped with the water outlet connector of the water outlet end of drainage assembly connection, water replenishing pipe is connected to first water replenishing connector, second water replenishing connector is also equipped with the other end of water replenishing pipe connection in the cover, the outlet end axis of water outlet connector and the outlet end axis of second water replenishing connector are parallelly arranged. By setting water outlet connector and second water replenishing connector on cover, guarantee the flow passability of the water outlet end of drainage assembly, the outlet end axis of water outlet connector and the outlet end axis of second water replenishing connector are parallelly arranged, so that tap water flows out from water replenishing pipe into main drainage flow with same direction, reduce flow resistance, enhance the persistence and stability of flushing.

Description

Technical Field

[0001] This utility model relates to the field of sanitary equipment technology, specifically to a toilet tank. Background Technology

[0002] In recent years, toilet tanks have gradually adopted water pump pressurization flushing technology, which uses a water pump to pressurize the water stored in the tank before discharging it, thereby increasing the initial flushing kinetic energy and enhancing the sewage discharge capacity.

[0003] In existing technologies, water pump pressurization for flushing is limited by the water tank volume. To increase the flushing volume, it is often necessary to increase the water tank volume, which is not conducive to product miniaturization and space optimization design. At the same time, the water flow generated by the pump pressurization is prone to pressure decay in the later stages of flushing, affecting the continuity and stability of the overall flushing effect.

[0004] To address these issues, some toilet tanks on the market connect a water supply pipe to the water pump's outlet pipe, allowing additional water to be supplied during flushing. However, the integrated design of the water supply pipe and the water pump's outlet pipe affects the maximum design size of the outlet pipe, making structural optimization difficult. Furthermore, the interface between the water supply pipe and the outlet pipe creates water flow disturbances and localized resistance, hindering water flow from the pump, reducing water output, weakening flushing performance, and impacting flushing stability and user experience. Utility Model Content

[0005] The purpose of this invention is to provide a toilet tank that solves the above-mentioned problems by optimizing the design of the water replenishment structure.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a toilet tank, including a tank body, an inlet valve connected to the inlet end of the tank body, a first water supply connector provided on the inlet valve, a first drain pipe provided at the outlet end of the tank body, a drain assembly capable of drawing water from the tank body for drainage, a cover provided at one end of the first drain pipe, an outlet connector connected to the outlet end of the drain assembly on the cover, a water supply pipe connected to the first water supply connector, and a second water supply connector connected to the other end of the water supply pipe on the cover, wherein the axis of the outlet end of the water supply connector is parallel to the axis of the outlet end of the second water supply connector.

[0007] As a further optimization of this utility model, the cover is provided with an installation plane, and the water outlet connector and the second water supply connector are both set perpendicular to the installation plane.

[0008] As a further optimization of this utility model, the cover, the water outlet connector, and the second water supply connector are an integrated structure.

[0009] As a further optimization of this utility model, the end of the first water supply connector is provided with a frustum-shaped first mounting part, and the end of the second water supply connector is provided with a frustum-shaped second mounting part.

[0010] As a further optimization of this utility model, a check valve is provided inside the first drain pipe. The check valve includes a sliding rod that can move along the length of the first drain pipe. A sealing plug is provided at one end of the sliding rod near the cover, and a valve seat that can cooperate with the sealing plug is provided on the cover.

[0011] As a further optimization of this utility model, the cover is provided with an installation block, the side wall of the first drain pipe is provided with an installation port that can cooperate with the installation block, and a guide groove that guides the installation block to move into the installation port.

[0012] As a further optimization of this utility model, the drainage assembly includes a water pump and a switching valve. The switching valve has an inlet end, a first outlet end and a second outlet end. The inlet end of the switching valve is connected to the outlet end of the water pump. The first outlet end of the switching valve is connected to an outlet connector. The second outlet end of the switching valve is connected to a second drain pipe.

[0013] As a further optimization of this utility model, the switching valve includes a valve body, the valve body has a water distribution chamber, and the valve body is rotatably connected to a switching block extending into the water distribution chamber. The switching block is connected to a rotary drive device that can drive the switching block to rotate, thereby causing the switching block to block the first water outlet or the second water outlet.

[0014] As a further optimization of this utility model, the rotary drive device includes a switching float that can move up and down with the water level.

[0015] Compared with the prior art, this utility model has the following advantages: By setting a water outlet connector connected to the water outlet end of the drainage component and a second water replenishment connector connected to the water replenishment pipe on the cover, the water replenishment pipe can replenish the drainage water flow while ensuring the maximum diameter and smooth flow of the drainage component's water outlet end, avoiding the pipe diameter limitation problems caused by the integrated design of the water replenishment pipe and the drainage component's water outlet end in traditional solutions; at the same time, the outlet end axis of the water outlet connector is set parallel to the outlet end axis of the second water replenishment connector, so that the tap water flowing out of the water replenishment pipe flows into the main drainage flow in the same direction, reducing flow resistance, improving flushing efficiency and stability, thereby improving the water outlet efficiency of the drainage component, alleviating pressure attenuation during flushing, enhancing the continuity and stability of flushing, and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is an exploded view of the drainage component in this utility model;

[0019] Figure 4 This is an exploded view of the first drainage pipe in this utility model;

[0020] Figure 5 This is a cross-sectional view showing the interaction between the drainage component and the first drainage pipe in this utility model. Figure 1 ;

[0021] Figure 6 This is a cross-sectional view showing the interaction between the drainage component and the first drainage pipe in this utility model. Figure 2 ;

[0022] Figure 7 This is a cross-sectional view showing the interaction between the drainage component and the first drainage pipe in this utility model. Figure 3 . Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 7 As shown, this utility model discloses a toilet tank, including a tank body 1. The inlet end of the tank body 1 is connected to an inlet valve 2, and the inlet valve 2 is provided with a first water supply connector 21. The outlet end of the tank body 1 is provided with a first drain pipe 3. The tank body 1 is provided with a drain assembly 4 that can draw water from the tank body 1 for drainage. One end of the first drain pipe 3 is provided with a cover 5, and the cover 5 is provided with an outlet connector 51 connected to the outlet end of the drain assembly 4. The first water supply connector 21 is connected to a water supply pipe 6. The cover 5 is also provided with a second water supply connector 52 connected to the other end of the water supply pipe 6. The outlet end axis of the outlet connector 51 is parallel to the outlet end axis of the second water supply connector 52.

[0025] like Figure 1 , Figure 2 , Figure 4As shown, the tank 1 is a closed or semi-closed container structure used to store flushing water. The inlet valve 2 is connected to the inlet end of the tank 1 and is used to control the supply of external tap water into the tank 1. The internal channel of the first water supply connector 21 is connected to the main inlet channel of the inlet valve 2, and can simultaneously output tap water as the water source for the water supply pipe 6 when the inlet valve 2 is opened. In this embodiment, the first water supply connector 21 is a diversion interface integrated on the inlet valve 2 and led out laterally. When the inlet valve 2 is opened, tap water from the municipal pipe network enters the tank 1 for water storage, and at the same time, it is transported to the drain end through the first water supply connector 21 and the water supply pipe 6 for auxiliary water supply during the flushing process. The first drain pipe 3 is set at the outlet end of the tank 1, and the drain assembly 4 is set inside the tank 1 for extracting the stored water in the tank and pressurizing and discharging it. The cover 5 is connected to the first drain pipe 3 via threads, snaps, or sealing rings. The water outlet connector 51 is located on the cover 5 and is used to connect to the water outlet end of the drainage component 4, allowing pressurized water to flow smoothly from the drainage component 4 into the first drain pipe 3. The second water replenishment connector 52 is also located on the cover 5 and is used to connect to the end of the water replenishment pipe 6, allowing the tap water transported by the water replenishment pipe 6 to converge into the drainage flow near the outlet end of the drainage component 4. In this embodiment, the water replenishment pipe 6 is a flexible hose, which connects the first water replenishment connector 21 and the second water replenishment connector 52 to form a water replenishment path. Compared to the pipe diameter limitations caused by the integrated design of the water replenishment pipe and the outlet end of the drainage component 4 in traditional solutions, this technical solution places the second water replenishment connector 52 on the cover 5, which does not occupy the water outlet space of the drainage component 4, thus ensuring the flushing force of the drainage component 4. The axis of the outlet end of the connector refers to the central axis of the interface end. For a pipe connector with a circular cross-section, its axis is the extension line of the center of its inner hole. In this embodiment, the axial direction of the outlet end of the water outlet connector 51 is the outflow direction of the main pressurized water flow from the drainage component 4, and the axial direction of the outlet end of the second water replenishment connector 52 is the outflow direction of the tap water transported by the water replenishment pipe 6. By setting the two axes parallel, the water outlet connector 51 and the second water replenishment connector 52 form parallel water flow paths. This allows the replenishment water flow from the outlet end of the second water replenishment connector 52 to merge with the drainage water flow from the outlet connector 51, enabling the replenishment water flow to utilize the pressure of the tap water to maximize the force of the drainage water flow. Figure 4 , Figure 6 , Figure 7 As shown, compared to the vertical connection of the water supply pipe to the water outlet pipe, which would result in greater local resistance at the interface, by setting the outlet end axis of the water outlet connector 51 parallel to the outlet end axis of the second water supply connector 52, the outlet directions of the water outlet connector 51 and the second water supply connector 52 are aligned, thereby allowing the tap water flowing out of the water supply pipe 6 to flow into the main drainage in the same direction, improving flushing efficiency and stability.

[0026] It should be noted that the parallel arrangement emphasized in this invention refers to the spatial relationship between the axis of the outlet end of the second water supply connector 52 and the axis of the outlet end of the water supply connector 51, and does not involve the connection direction of the inlet end or the wiring path of the water supply pipe 6. The inlet end of the second water supply connector 52 can be configured as a flexible structure such as a hose connector, universal joint connector, flexible elbow, or rotary interface to facilitate connection with the water supply pipe 6 and adapt to different installation spaces and pipeline routes. The parallel arrangement of the axis of the outlet end of the second water supply connector 52 and the axis of the outlet end of the water supply connector 51 achieves low-resistance confluence or enhances the force of the drainage flow by utilizing the pressure of tap water. The local bending of the inlet end does not affect the definition of the axis direction of the outlet end or the realization of the technical effect. As long as the axis direction of the outlet end of the second water supply connector 52 remains parallel to the axis direction of the outlet end of the water supply connector 51, it falls within the protection scope of this invention.

[0027] By providing a water outlet connector 51 connected to the water outlet end of the drainage component 4 and a second water replenishment connector 52 connected to the water replenishment pipe 6 on the cover 5, the water replenishment pipe 6 can replenish the drainage flow while ensuring the maximum diameter and smooth flow of the water outlet end of the drainage component 4, avoiding the pipe diameter limitation problems caused by the integrated design of the water replenishment pipe and the water outlet end of the drainage component 4 in traditional solutions. At the same time, the outlet end axis of the water outlet connector 51 is set parallel to the outlet end axis of the second water replenishment connector 52, so that the tap water flowing out of the water replenishment pipe 6 flows into the main drainage flow in the same direction, reducing flow resistance, improving flushing efficiency and stability, thereby improving the water outlet efficiency of the drainage component 4, alleviating pressure attenuation during flushing, enhancing the continuity and stability of flushing, and improving the user experience.

[0028] The cover 5 is provided with an installation plane 53. The water outlet connector 51 and the second water supply connector 52 are both set perpendicular to the installation plane 53. The coplanar reference ensures that the axes of the two connectors are parallel, thereby achieving low resistance and high efficiency water flow confluence.

[0029] The cover 5, the water outlet connector 51, and the second water supply connector 52 are an integral structure. The integrated design can reduce assembly steps and improve production efficiency. At the same time, since the water outlet connector 51 and the second water supply connector 52 are precisely positioned in the mold, the parallelism of their outlet end axes can be effectively guaranteed, which is conducive to the smooth convergence of the water supply flow and the main drainage flow.

[0030] In this embodiment, the water outlet connector 51 and the second water supply connector 52 are straight pipes and are arranged in parallel, resulting in a simple structure.

[0031] The end of the first water supply connector 21 is provided with a frustoconical first mounting part 211, and the end of the second water supply connector 52 is provided with a frustoconical second mounting part 521.

[0032] The outer surfaces of the first mounting part 211 and the second mounting part 521 are truncated conical protrusions with diameters gradually decreasing from the root to the end, forming a sloping transition guide and sealing mating surface. With the arrangement of the first mounting part 211 and the second mounting part 521, after the water supply pipe 6 is fitted into the first water supply connector 21 and the second water supply connector 52, its pipe wall tightly adheres to the truncated conical slope of the first mounting part 211 and the second mounting part 521, forming a reliable seal and preventing detachment.

[0033] The first drain pipe 3 is provided with a check valve 7. The check valve 7 includes a sliding rod 71 that can move along the length of the first drain pipe 3. The end of the sliding rod 71 near the cover 5 is provided with a sealing plug 72. The cover 5 is provided with a valve seat 54 that can cooperate with the sealing plug 72.

[0034] like Figure 6 , Figure 7 As shown in the embodiment, the sealing plug 72 is provided with an anti-backflow gasket 73, which cooperates with the valve seat 54 to achieve the anti-backflow function. The check valve 7 is set in the first drain pipe 3 and is located downstream of the second water supply connector 52, so that the water supply flow can flow into the main drain flow without obstruction, and together with the main water flow, it acts on the check valve 7 to push it open smoothly, thereby improving the water supply efficiency and flushing stability.

[0035] The cover 5 is provided with a mounting block 55, and the side wall of the first drain pipe 3 is provided with a mounting port 31 that can cooperate with the mounting block 55, and a guide groove 32 that guides the mounting block 55 to move into the mounting port 31.

[0036] like Figure 4 As shown in the embodiment, the mounting block 55 is a protruding structure extending laterally from the outer periphery of the cover 5, the guide groove 32 is an elongated opening groove extending axially along the first drain pipe 3, used to guide the mounting block 55 into place, and the mounting opening 31 is a circumferential engaging hole at the end of the guide groove 32. Through the installation of the mounting block 55, the mounting opening 31, and the guide groove 32, the cover 5 and the first drain pipe 3 can be quickly and securely engaged.

[0037] The drainage assembly 4 includes a water pump 41 and a switching valve 42. The switching valve 42 has an inlet end, a first outlet end and a second outlet end. The inlet end of the switching valve 42 is connected to the outlet end of the water pump 41. The first outlet end of the switching valve 42 is connected to the outlet connector 51. The second outlet end of the switching valve 42 is connected to a second drain pipe 8.

[0038] like Figure 3 , Figure 5As shown in the embodiment, the inlet of the water pump 41 can draw water from the tank 1. The switching valve 42 is a one-inlet, two-outlet fluid control valve, with its inlet connected to the outlet of the water pump 41, the first outlet connected to the outlet connector 51, and the second outlet connected to the second drain pipe 8. By switching the state of the switching valve 42, the pressurized water output by the water pump 41 can selectively flow to the first drain pipe 3 or the second drain pipe 8, thereby realizing the switching of the flushing mode.

[0039] The switching valve 42 includes a valve body 421, the valve body 421 having a water distribution chamber 422, and the valve body 421 is rotatably connected to a switching block 423 extending into the water distribution chamber 422. The switching block 423 is connected to a rotary drive device 9 that can drive the switching block 423 to rotate, thereby causing the switching block 423 to block the first water outlet or the second water outlet.

[0040] In this embodiment, the valve body 421 is provided with a rotating support structure for mounting a switching block 423. The switching block 423 can rotate under the drive of the rotary drive device 9, thereby selectively blocking the first water outlet or the second water outlet, and realizing the switching of the water flow path.

[0041] The rotary drive device 9 includes a switching float 91 that can move up and down with the water level.

[0042] The switching float 91 is a buoyant body made of hollow or low-density material, which can move up and down with the rise and fall of the water level in the tank 1. In this embodiment, a transmission rod is also provided between the switching float 91 and the switching stop 423, which converts the up and down movement of the switching float 91 into the rotational movement of the switching stop 423. The switching float 91 allows the switching valve 42 to complete the mode switching simply by relying on the natural change of the water level.

Claims

1. A toilet tank, characterized in that, The device includes a housing (1), with an inlet valve (2) connected to the inlet end of the housing (1). The inlet valve (2) is equipped with a first water supply connector (21). The outlet end of the housing (1) is equipped with a first drain pipe (3). The housing (1) is equipped with a drainage assembly (4) that can extract water from the housing (1) for drainage. One end of the first drain pipe (3) is equipped with a cover (5). The cover (5) is equipped with an outlet connector (51) connected to the outlet end of the drainage assembly (4). The first water supply connector (21) is connected to a water supply pipe (6). The cover (5) is also equipped with a second water supply connector (52) connected to the other end of the water supply pipe (6). The outlet end axis of the outlet connector (51) is parallel to the outlet end axis of the second water supply connector (52).

2. A toilet tank according to claim 1, characterized in that, The cover (5) is provided with an installation plane (53), and the water outlet connector (51) and the second water supply connector (52) are both set perpendicular to the installation plane (53).

3. A toilet tank according to claim 1, characterized in that, The cover (5), water outlet connector (51), and second water supply connector (52) are an integrated structure.

4. A toilet tank according to claim 1, characterized in that, The first water supply connector (21) has a frustoconical first mounting part (211) at its end, and the second water supply connector (52) has a frustoconical second mounting part (521) at its end.

5. A toilet tank according to claim 1, characterized in that, The first drain pipe (3) is provided with a check valve (7). The check valve (7) includes a sliding rod (71) that can move along the length of the first drain pipe (3). The sliding rod (71) is provided with a sealing plug (72) at one end near the cover (5). The cover (5) is provided with a valve seat (54) that can cooperate with the sealing plug (72).

6. A toilet tank according to claim 1, characterized in that, The cover (5) is provided with a mounting block (55), and the side wall of the first drain pipe (3) is provided with an installation port (31) that can cooperate with the mounting block (55), and a guide groove (32) that guides the mounting block (55) to move into the installation port (31).

7. A toilet tank according to claim 1, characterized in that, The drainage assembly (4) includes a water pump (41) and a switching valve (42). The switching valve (42) has an inlet end, a first outlet end and a second outlet end. The inlet end of the switching valve (42) is connected to the outlet end of the water pump (41). The first outlet end of the switching valve (42) is connected to the outlet connector (51). The second outlet end of the switching valve (42) is connected to a second drain pipe (8).

8. A toilet tank according to claim 7, characterized in that, The switching valve (42) includes a valve body (421), the valve body (421) has a water distribution chamber (422), and the valve body (421) is rotatably connected to a switching block (423) extending into the water distribution chamber (422). The switching block (423) is connected to a rotary drive device (9) that can drive the switching block (423) to rotate so that the switching block (423) blocks the first water outlet or the second water outlet.

9. A toilet tank according to claim 8, characterized in that, The rotary drive device (9) includes a switching float (91) that can move up and down with the water level.

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