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Flushing mechanism

A piston and box technology, applied in the field of flushing mechanism, can solve the problems of high relative tolerance range requirements such as relative hardness and elasticity, unstable function, and deviation of sealing sequence, etc., and reduce the requirement of tolerance range, manufacturing and inspection Cost, the effect of enhancing stability performance

Active Publication Date: 2013-10-23
XIAMEN AXENT
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AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the relative distance between the large sealing ring and the small sealing ring of the second piston sealing assembly is very strict, and the relative tolerance range of the relative hardness and elastic force of the two sealing rings is very high, resulting in , the sealing sequence of the second piston seal assembly deviates, which is prone to unstable functions

Method used

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Embodiment Construction

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] Such as figure 1 As shown, the flushing mechanism of the present invention includes a box body 1, a guide rod 2, a first piston 3, and a first piston loading spring 4; wherein, the box body 1 has a box wall 1-1 connected to each other and a box bottom 1- 2. The box wall 1-1 and the box bottom 1-2 are integrally formed or connected together. The box wall 1-1 defines a cylindrical structure around an axis. Preferably, the axis is the center line of the box body 1. At the box bottom 1-2 2. Open a water outlet for connecting the flushing pipeline (n...

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Abstract

The invention discloses a flushing mechanism which comprises a box body, a guide rod, a first piston, a first piston loading spring, a second piston, a second piston loading spring and a control valve. The second piston is movably provided with a large valve sleeve for sealing the box bottom in a sealing mode, wherein the lager valve sleeve is provided with a large sealing ring. A small annular cavity is defined by the large valve sleeve, the large sealing ring, the second piston and the box bottom. By adopting the technical scheme, the physical relevance degree of the large sealing ring and a small sealing ring is reduced in the water drainage process, the requirements for the hardness of the large sealing ring and the small sealing ring and an elasticity tolerance range are greatly reduced, and accordingly the manufacture and inspection cost of parts is reduced.

Description

technical field [0001] The invention relates to a flushing mechanism for flushing dirt and / or sewage, in particular to a flushing mechanism suitable for flushing sanitary equipment such as water closets. Background technique [0002] Chinese patent application CN200810091185.6 discloses a flushing mechanism, which is mainly characterized in that the second piston sealing assembly has a large sealing valve plate and a small sealing valve plate, and the bottom of the second piston and the lower end of the box define an outer lower chamber and an inner lower chamber , during the drainage stage, the second piston moves upwards in cooperation with the loading spring of the second piston, thereby opening the drain port. In this structure, the seal of the second piston is not stable enough at the end of drainage, which affects the function of the product. [0003] A flushing mechanism disclosed in Chinese patent application CN201010252463.9 is mainly characterized in that it has a...

Claims

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Application Information

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IPC IPC(8): E03D3/10
Inventor 江长发
Owner XIAMEN AXENT
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