Water stop structure for water inlet device of toilet bowl

Abstract

The invention relates to a water stop structure for a water inlet device of a toilet bowl. The structure comprises a water inlet valve and a lever support, wherein a ventilation seat stand is arranged at the center of the top surface of the water inlet valve, and a ventilation hole is formed in the surface of the ventilation seat stand. The structure is characterized in that convex edges are arranged on the two sides of the ventilation seat stand, the convex edges are connected with a pressing round cover in a clamped mode, a round groove is formed in the top of the interior of the pressing round cover, the round groove is filled with a sealing gasket, and a spring is connected to the outer side of the round groove in a sleeved mode; the lever support is clamped on the pressing round cover, a shaft hole is formed in the lever support, a lever swing arm is movably connected to the lever support through a rotary shaft and the shaft hole, a cam surface is arranged on one side of the lever swing arm and is in contact with the top surface of the pressing round cover in an abutting mode, and a slide-guiding groove is formed in the other side of the lever swing arm and is connected with a lifting rod connected to a float. The structure has the advantages of being small in structural member size, capable of achieving linkage transmission, high in lever ratio, suitable for high-pressure water supply and convenient to install and use.

Description

technical field [0001] The invention belongs to the field of valve accessories matched with water tanks, and in particular relates to a water stop structure suitable for a water inlet device of a toilet water tank. Background technique [0002] The water inlet devices currently on the market that are suitable for toilet tanks, whether through a piston-type water-stop structure or a back-pressure type water-stop structure, all have differences between the water supply pressure of the pipeline and the size of the floating bucket and the lever ratio of the lifting rod. Contradictory issues, the product must be able to withstand greater pipeline water supply pressure, especially in the current high-rise building water supply or some specific areas, it is required that the product can withstand higher water supply pressure. For this reason, in the prior art, it is often used to increase the area of ​​the buoyancy bucket to increase the buoyancy to improve the sealing performance ...

AI Technical Summary

Problems solved by technology

For this reason, in the prior art, it is often used to increase the area of ​​the buoyancy bucket to increase the buoyancy to improve the sealing performance of the water, or to increase the lever ratio of the lifting bar in order to increase the force so as to achieve high pressure resistance. This adjustment brings the most direct effect The impact is that the volume of the water inlet device will increase, especially the lateral dimension in the water tank, and at the same time, the local structure of the product will be stressed, which will increase the instability of the product

[0003] On the other hand, the existing design of the lever structure on the top of the water inlet device also limits that the structure can only be designed as a fixed structure, and it is difficult to realize the adjustable requirements. If it is correct, you have to loosen the lock nut again, adjust the direction and lock it again, which is time-consuming and troublesome, and repeated disassembly and assembly of the product is not good for the product itself (mainly composed of plastic parts)

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