Water inlet device applied to closestool water tank

Abstract

The utility model relates to the technical field of sanitary ware, in particular to a water inlet device applied to a closestool water tank, which comprises a water inlet valve main body, a water inlet channel is arranged on the water inlet valve main body, the water inlet channel comprises a water inlet end and a water outlet end, and the water outlet end of the water inlet channel extends downwards from the water inlet valve main body. A first ventilation part is constructed on the water inlet channel, a mounting station for mounting the ventilation assembly is constructed on the water inlet valve main body, the ventilation assembly, the water stop assembly and the water inlet channel are all arranged on the water inlet valve main body, a plurality of parts are integrated, and the water tank only needs to be provided with a single mounting hole for mounting the water inlet valve main body. The lock catch connection mode is used for replacing metal part connection such as screws, the number of installation openings in the water tank is reduced, the sealing performance of the water tank is improved, the installation steps are simplified, the water outlet end is close to the bottom of the water tank, the height difference between the water outlet and the bottom of the water tank is reduced, the water outlet end is always arranged below the liquid level, and noise generated in the water inlet process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary ware, in particular to a water inlet device applied to a toilet water tank. Background Art

[0002] The water inlet valve applied to the toilet water tank mainly functions to control the water inflow of the water tank. The water inlet end of the water inlet valve is connected to the water supply pipe in the bathroom, and the water outlet end is placed in the water tank to timely supplement enough water for the toilet water tank for flushing. The water inlet valve can adjust the water flow to keep the water level at a preset height. When the liquid level reaches the preset height, the water inlet valve is in a closed state to block the water flow from entering the water tank and prevent the water tank from overflowing.

[0003] In the prior art, the water inlet valve mainly consists of a water inlet pipe, a ventilation valve and a water stop control valve, and each module is arranged in a split manner, making the structure of the water inlet valve relatively scattered. Specifically, reference can be made to a smart toilet water storage tank described in the Chinese utility model patent with the publication number CN217537206U. To ensure normal water replenishment of the water tank, a water inlet valve main body and a ventilation valve composed of an air inlet and a check valve are assembled on the water tank. The water tank main body needs to be provided with a first installation hole for facilitating the connection between the water inlet and the water supply pipe, and a second installation hole for installing the ventilation valve. On the one hand, it damages the structure of the water tank main body and affects the sealing performance of the water tank main body. On the other hand, it also makes the installation process of the water tank assembly more cumbersome, increasing the production cost and production cycle.

[0004] Secondly, the water outlet of some existing water inlet valves is located on the upper side of the water inlet valve. When the water tank is in a water shortage state, due to the height difference between the water inlet end and the liquid level in the water tank, a relatively large water sound will be generated during the water replenishment process, bringing a poor experience to users. Therefore, there is still room for improvement in the existing water inlet valves of toilet water tanks. Summary of the Invention

[0005] The purpose of the utility model is to provide a water inlet device applied to a toilet water tank to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A water inlet device applied to a toilet water tank, including a water inlet valve main body, a water inlet channel is arranged on the water inlet valve main body, the water inlet channel includes a water inlet end and a water outlet end, the water outlet end of the water inlet channel extends downward from the water inlet valve main body, a first ventilation part is constructed on the water inlet channel, and an installation station for installing a ventilation component is constructed on the water inlet valve main body.

[0007] Wherein, the water inlet valve main body further includes a ventilation component for the gas circulation inside and outside the water tank, and the ventilation component is arranged on the installation station.

[0008] Wherein, a water stop component for controlling the water inflow amount is arranged on the water inlet valve main body, the water stop component is correspondingly arranged with the first ventilation part, and the water stop component moves along with the change of the liquid level in the water tank, so as to control the opening and closing of the first ventilation part.

[0009] Wherein, the ventilation component, the water stop component and the water inlet channel are all arranged on the water inlet valve main body.

[0010] Wherein, the ventilation component includes a second ventilation part, and the second ventilation part is arranged at the installation position of the water inlet valve main body and penetrates through the installation position.

[0011] Wherein, the ventilation component further includes a seal, and the seal can move axially along the second ventilation part, so that the seal can control the opening and closing of the second ventilation part along with the change of the liquid level.

[0012] Wherein, the water stop component includes a stopper, the stopper is correspondingly arranged with the first ventilation part, and the stopper can move axially along the first ventilation part.

[0013] Wherein, the water stop component further includes a floating member, and at least part of the floating member is located on the side opposite to the first ventilation part of the stopper or at least part of the floating member is connected to the stopper.

[0014] Wherein, a guide shaft is constructed on the water inlet valve main body, a sliding groove is arranged on the floating member, and the floating member is sleeved on the guide shaft through the sliding groove and is slidably assembled on the guide shaft.

[0015] Wherein, an outer ring wall is constructed on the upper and / or lower surface of the outer periphery of the water inlet valve main body to form an installation space, and the installation position is located within the installation space.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: in this application, an installation position is constructed on the water inlet main body, the ventilation component is arranged at the installation position, and the water stop component and the water inlet channel are both arranged on the water inlet valve main body. Multiple components are integrated into one. For the installation of the water inlet valve, only a single installation hole needs to be opened on the water tank for installing the water inlet valve main body, so as to reduce the number of installation openings arranged on the water tank, thereby reducing the risk of water leakage from the water tank and further improving the sealing performance of the water tank. Secondly, it helps to simplify the installation steps of the water tank assembly, improve the production and assembly efficiency of the water tank assembly, and realize rapid assembly.

[0017] Secondly, since the water outlet end of the water inlet valve extends downward from the water inlet valve body and is close to the bottom of the water tank, the height difference between the water outlet and the bottom of the water tank is effectively reduced by changing the water inlet direction. After the water tank finishes flushing, the water in the water tank is not completely drained, but there is a certain amount of water not lower than the height of the water inlet of the drain valve. Therefore, the water outlet end of the water inlet valve is always placed below the liquid level. The water inlet valve uses sub-surface water inlet, which can greatly reduce the noise generated during the water inlet process and achieve the effect of silent water inlet in the toilet tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of a water inlet device applied to a toilet tank;

[0019] Figure 2 FIG. 7 is a side view structural schematic diagram of a water inlet device applied to a toilet tank;

[0020] Figure 3 FIG. 8 is a front view structural schematic diagram of a water inlet device applied to a toilet tank;

[0021] Figure 4 FIG. Figure 3 9 is a sectional structural schematic diagram taken along A-A in FIG. 6;

[0022] Figure 5 FIG. 10 is a partial three-dimensional structural schematic diagram of a water inlet device applied to a toilet tank Figure 1 ;

[0023] Figure 6 FIG. 11 is a three-dimensional structural schematic diagram of a water stop assembly and a seal;

[0024] Figure 7 FIG. 12 is a partial three-dimensional structural schematic diagram of a water inlet device applied to a toilet tank Figure 2 ;

[0025] Figure 8 FIG. 13 is a disassembled three-dimensional structural schematic diagram of a water inlet device applied to a toilet tank

[0026] Figure 9 FIG. 14 is a three-dimensional structural schematic diagram of the water inlet device and the water tank main body.

[0027] The reference numerals of the components in the drawings are as follows:

[0028] 1 - water inlet valve body, 11 - water inlet channel, 12 - water inlet end, 13 - water outlet end, 14 - first ventilation part, 15 - installation station, 16 - second ventilation part, 17 - seal, 18 - guide shaft, 19 - connecting shaft, 110 - anti - detachment part, 111 - outer ring wall, 112 - installation space; 2 - water stop assembly, 21 - stopper, 22 - floating member, 23 - sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1: As Figure 1-8 shown, this embodiment relates to a water inlet device applied to a toilet water tank, including a water inlet valve main body 1. An inlet water channel 11 is provided on the water inlet valve main body 1. The inlet water channel 11 includes a water inlet end 12 and a water outlet end 13. The water outlet end 13 of the inlet water channel 11 extends downward from the water inlet valve main body 1. A first ventilation part 14 is constructed on the inlet water channel 11. An installation station 15 for installing a ventilation component is constructed on the water inlet valve main body 1. The installation station 15 is a position on the water inlet valve main body 1 on one side of the inlet water channel 11. The water inlet valve main body 1 further includes a ventilation component for the gas circulation inside and outside the water tank. The ventilation component is arranged on the installation station 15, integrating the ventilation component with the water inlet valve main body. For the installation of the water inlet valve, only a single installation hole needs to be opened on the water tank for installing the water inlet valve main body, reducing the number of installation openings on the water tank, thereby reducing the risk of water leakage from the water tank and further improving the sealing performance of the water tank. Moreover, it helps to simplify the installation steps of the water tank components and improve the production and assembly efficiency of the water tank components. Secondly, by changing the water inlet direction and extending the water outlet end 13 to be close to the bottom of the water tank. Since after the water tank flushes, the water in the water tank is not completely drained, but there is water with a height not lower than the water inlet height of the drain valve. The water inlet end 12 of the water inlet valve is connected to the water supply pipe in the bathroom, and the water outlet end 13 is always placed below the liquid level, enabling the water inlet valve to intake water below the liquid level, which can greatly reduce the noise generated during the water intake process and achieve the effect of silent water intake of the toilet water tank.

[0031] Among them, the water inlet end 12 is connected to the water inlet valve main body 1. The water inlet end 12 can extend from the water inlet valve main body 1 in different directions, including but not limited to extending to the side of the water inlet valve to form an L-shaped structure with the water outlet end 13; or extending upward; or extending downward to form an inverted U-shaped structure with the water outlet end 13. One end of the water outlet end 13 is communicated with the water inlet end 12, and the other end of the water outlet end 13 extends downward from the water inlet valve main body 1.

[0032] Among them, a water stop component for controlling the water inflow amount is arranged on the water inlet valve body 1. The water stop component is correspondingly arranged with the first ventilation part 14. The water stop component moves along with the change of the liquid level in the water tank, so as to control the opening and closing of the first ventilation part 14. When the liquid level in the water tank rises and pushes the water stop component to move upward, the water stop component blocks the first ventilation part, forming a pressure difference between the water inlet pipe and the water tank, so that the water supply pipe cannot supply water into the water tank through the water inlet pipe. When the liquid level in the water tank continuously drops, the water stop component moves downward, enabling the air in the water tank to be discharged through the first ventilation part, and the water supply pipe supplies water into the water tank through the water inlet pipe.

[0033] Specifically, the first ventilation part 14 is arranged at the bottom of the water inlet valve body 1 at the water inlet end 12. The first ventilation part 14 penetrates through the water inlet channel 11 and the water inlet valve body 1. The first ventilation part 14 is a through hole.

[0034] Among them, the ventilation component, the water stop component and the water inlet channel 11 are all arranged on the water inlet valve body 1, integrating each module of the water inlet valve into one body, which not only simplifies the structure of the water inlet valve, but also reduces the number of installation holes arranged on the water tank body, further improving the sealing performance of the water tank and reducing the risk of water leakage from the water tank.

[0035] Among them, the ventilation component includes a second ventilation part 16. The second ventilation part 16 is arranged on the installation station 15 of the water inlet valve body 1 and penetrates through the installation station 15. The second ventilation part 16 can be used for the air circulation inside and outside the water tank. The second ventilation part 16 is a through hole. The ventilation component further includes a sealing member 17. The sealing member 17 can move axially along the second ventilation part 16, so that the sealing member 17 can control the opening and closing of the second ventilation part 16 along with the change of the liquid level. Specifically, a connecting shaft 19 is constructed on the upper side surface of the sealing member 17. One end of the connecting shaft 19 opposite to the sealing member 17 has an anti-detachment part 110. The connecting shaft 19 of the sealing member 17 is inserted into the second ventilation part 16, and the anti-detachment part 110 is placed above the installation station 15, so that the sealing member 17 is always assembled at the second ventilation part 16. The length of the connecting shaft 19 is greater than the depth of the second ventilation part 16. When the water tank is in the water replenishing state or the water level is lower than the sealing member during the drainage process, the anti-detachment part is hung on the installation station located on the second ventilation part, and there is a gap between the sealing member and the second ventilation part, facilitating the air circulation inside and outside the water tank. When the liquid level of the water tank reaches the preset height, the water in the water tank pushes the sealing member 17 to block the second ventilation part, increasing the pressure difference between the inside of the water tank and the inside of the water inlet pipe, preventing the water supply pipe from supplying water into the water tank, and further improving the sealing performance of the water inlet valve to avoid continuous water inflow exceeding the preset liquid level.

[0036] Preferably, a fixing ring is provided around the second ventilation part 16 of the water inlet valve body 1. The sealing member 17 is made of soft rubber material. When the sealing member 17 blocks the second ventilation part, the outer edge of the sealing member 17 abuts against the inner wall of the fixing ring, further enhancing the sealing performance of the water inlet valve.

[0037] Among them, the water stop assembly includes a stop member 21, which is correspondingly arranged with the first ventilation part 14. The stop member 21 can move along the axial direction of the first ventilation part 14. Specifically, the stop member 21 is assembled on the bottom surface of the water inlet valve body 1. A rotating seat is provided on the bottom surface of the water inlet valve body 1, and a rotating hole is provided on the rotating seat. A rotating shaft is provided on one side of the stop member 21, and the rotating shaft is rotatably assembled in the rotating hole of the rotating seat. A sealing block is provided at the corresponding position of the stop member 21 and the first ventilation part 14. The sealing block is made of soft rubber material. When the preset water level is reached, the water pushes the stop member to rotate upward, so that the sealing block blocks the first ventilation hole.

[0038] Among them, the water stop assembly further includes a floating member 22. At least part of the floating member 22 is located on the side opposite to the stop member 21 and the first ventilation part 14 or at least part of the floating member 22 is connected to the stop member 21. A guide shaft 18 is constructed on the water inlet valve body 1. A sliding groove 23 is provided on the floating member 22. The floating member 22 is sleeved on the guide shaft 18 through the sliding groove 23 and is slidably assembled on the guide shaft 18. Among them, a stop block is provided at the end of the guide shaft 18, and the outer diameter of the stop block is larger than the inner diameter of the sliding groove 23, so that the floating member is always sleeved on the guide shaft. The stop block can be a screw or the end of the guide shaft with an enlarged outer diameter.

[0039] When the water in the water tank reaches the preset liquid level, the water pushes the floating member to move upward, driving the stop member to rotate upward, so that the sealing block on the stop member blocks the first ventilation part, preventing water from entering the water inlet pipe; when the liquid level of the water tank drops, the floating member moves downward, and there is an activity space between the floating member and the stop member. The stop member rotates downward to eliminate the blockage of the first ventilation part, enabling the water inlet pipe to pass water normally, thereby replenishing water to the water tank.

[0040] Preferably, an outer ring wall 111 is constructed on the upper and / or lower surface of the outer periphery of the water inlet valve body 1 to form an installation space 112. The installation station 15 is located within the installation space 112, and the water stop assembly is located on the lower side of the water inlet valve body 1.

[0041] Embodiment 2: As Figure 1-9As shown, a water tank assembly applicable to a toilet further includes a water tank main body. An installation hole is formed on the water tank main body. A locking buckle is formed on the outer side surface of the lower end of the outer ring wall 111. A clamping projection is provided on the inner wall of the installation hole where the water tank main body is located. The main body 1 of the water inlet valve is detachably assembled on the water tank main body by engaging the locking buckle with the clamping projection. At this time, the second ventilation part 16 is close to or outside the upper end surface of the water tank, and the water inlet end is exposed outside the water tank main body.

[0042] In this embodiment, a convex ring is provided on the outer ring wall 111. The convex ring extends outward from the outer side surface of the outer ring wall 111. An extension platform is further provided on the outer ring wall 111 above the convex ring. An inner groove for installing a sealing ring is formed between the upper end surface of the extension platform and the lower end surface of the convex ring. The locking buckle is composed of a vertical part and a horizontal part. One end of the vertical part is connected to or close to the lower end surface of the convex ring. The other end of the vertical part is connected to the horizontal part, so that a clamping space is formed among the horizontal part, the vertical part and the lower end surface of the convex ring. The main body 1 of the water inlet valve is detachably assembled on the water tank main body by placing the clamping projection in the clamping space.

[0043] Preferably, an anti-rotation part is provided on the ring wall, and a limiting part is provided on the clamping projection. When the clamping projection and the locking buckle are engaged with each other, the anti-rotation part is clamped in the limiting part to further limit the water inlet valve, so that the water inlet valve is more firmly assembled on the water tank.

[0044] Preferably, the outer ring wall and the installation hole are circularly structured. The water inlet valve is placed in the installation hole, and the water inlet valve is manually rotated to engage the locking buckle with the clamping projection, so that the water inlet valve is detachably installed on the water tank main body.

[0045] Using the engagement connection between the locking buckle and the clamping projection to replace the existing connection of metal parts, such as screw connection. In production and assembly, the assembly steps can be simplified to achieve rapid assembly. Secondly, since the number of locking holes provided on the water tank main body is reduced, the sealing performance of the water tank is effectively improved, and the situation of water overflow from the water tank is reduced.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An inlet device applied to a toilet tank, comprising an inlet valve body, wherein an inlet channel is arranged on the inlet valve body, and the inlet channel includes an inlet end and an outlet end, and is characterized in that: The water outlet end of the water inlet passage extends downward from the water inlet valve body, a first ventilation part is constructed on the water inlet passage, and an installation station for installing a ventilation component is constructed on the water inlet valve body.

2. The water inlet device for a toilet tank according to claim 1, characterized in that: The water inlet valve body further includes a ventilation component for the gas circulation inside and outside the water supply tank, and the ventilation component is arranged at the installation station.

3. The water inlet device applied to a toilet tank according to claim 2, characterized in that: A water stop component for controlling the water inflow is arranged on the water inlet valve body, the water stop component is arranged corresponding to the first ventilation part, and the water stop component moves along with the change of the liquid level in the water tank, so as to control the opening and closing of the first ventilation part.

4. The water inlet device for a toilet tank according to claim 3, characterized in that: The ventilation component, the water stop component and the water inlet passage are all arranged on the water inlet valve body.

5. The water inlet device applied to a toilet tank according to claim 2, characterized in that: The ventilation component includes a second ventilation part, and the second ventilation part is arranged at the installation station of the water inlet valve body and penetrates through the installation station.

6. The water inlet device applied to a toilet water tank according to claim 5, characterized in that: The ventilation component further includes a seal, and the seal can move axially along the second ventilation part, so that the seal can control the opening and closing of the second ventilation part along with the change of the liquid level.

7. The water inlet device applied to a toilet water tank according to claim 3, characterized in that: The water stop component includes a stopper, the stopper is arranged corresponding to the first ventilation part, and the stopper can move axially along the first ventilation part.

8. The water inlet device applied to a toilet water tank according to claim 7, characterized in that: The water stop component further includes a floating member, and at least part of the floating member is located on the side opposite to the first ventilation part of the stopper or at least part of the floating member is connected to the stopper.

9. The water inlet device applied to a toilet water tank according to claim 8, characterized in that: A guide shaft is constructed on the water inlet valve body, a sliding groove is arranged on the floating member, and the floating member is sleeved on the guide shaft through the sliding groove and is slidably assembled on the guide shaft.

10. The water inlet device for a toilet tank according to any one of claims 1-9, characterized in that: An outer ring wall is constructed on the upper and / or lower surface of the outer periphery of the water inlet valve body to form an installation space, and the installation station is located within the installation space.

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