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A fixed structure, double disc check valve and assembly process

A fixed structure, fixed shaft technology, applied in the direction of valve device, valve shell structure, valve details, etc., can solve the problems of complex assembly, damage of sealing water line surface, etc., and achieve the effect of simplifying structure composition, avoiding damage and simple installation

Active Publication Date: 2021-04-06
NEWAY VALVE SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of complex assembly of the inner components of the double-disc check valve in the prior art and the damage of the sealed waterline surface, thereby providing a fixed structure, double-disc check valve and assembly process

Method used

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  • A fixed structure, double disc check valve and assembly process
  • A fixed structure, double disc check valve and assembly process
  • A fixed structure, double disc check valve and assembly process

Examples

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Embodiment 1

[0048] Such as Figure 1-4 As shown, the present embodiment provides a fixation structure for connecting a first object within a lumen of a second object, comprising:

[0049] There are two support bases 2 opposite to each other, the two support bases 2 are suitable for connecting the first object, and one end of the support base 2 facing the direction of entering the inner cavity is suitable for being plugged into the inner cavity on the side wall;

[0050] The fixed shaft assembly 3 includes a coaxially arranged first fixed shaft 31, a second fixed shaft 32, and a connection assembly connecting the first fixed shaft 31 and the second fixed shaft 32, and the first fixed shaft 31 is suitable for Pass through the through hole 21 on one of the support seats and insert it into the side wall of the inner cavity, and the second fixed shaft 32 is suitable to pass through the through hole 21 on the other support seat and the inner cavity. The side wall of the cavity is plugged, and...

Embodiment 2

[0065] This embodiment provides a double-disc check valve, comprising: a valve body 1 having an inner cavity, and an inlet and an outlet respectively for the inflow and outflow of fluid; The valve clack 4 on the pivot 7 and located on both sides of the pivot 7, and the elastic reset member 5 connected to the valve clack at both ends; The flap assembly is fixed.

[0066] The double-disc check valve provided in this embodiment is assembled through the fixing structure of embodiment 1, which reduces the number of parts of the double-disc check valve and has the advantage of simple installation; and the connection structure of the fixed shaft assembly It is arranged in the middle of the fixed shaft assembly, which avoids damage to the sealing waterline surface of the valve end face by the way that the limit block is fixed from the end surface of the valve outlet end, and ensures the integrity of the sealing waterline surface.

[0067] In the above-mentioned double-disc check valv...

Embodiment 3

[0069] This embodiment provides a process for assembling using the fixed structure described in Embodiment 1, including the following steps,

[0070] The pre-installation step is to respectively install the two ends of the first object on the two supporting bases to form the first assembly;

[0071] Inserting the first assembly into the inner cavity of the second object, and inserting the end of the support seat 2 facing the direction of entering the inner cavity into the side wall of the inner cavity;

[0072] To install the fixed shaft assembly, pass the first fixed shaft 31 through the through hole 21 of a support base 2 and insert it with the side wall of the inner cavity, and put the sleeve 34 on the first fixed shaft 31; put the second fixed shaft 32 passes through the through hole 21 of another support seat 2 and is inserted into the side wall of the inner cavity, and the first fixed shaft 31 and the second fixed shaft 32 are arranged coaxially;

[0073] The pin shaft ...

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Abstract

The invention relates to the technical field of valves, in particular to a fixed structure, a double-disc check valve and an assembly process. Among them, the fixed structure and the double-lobe check valve connect the first object in the inner cavity of the second object through the fixed shaft assembly and the support seat, wherein the fixed shaft assembly has two coaxially arranged fixed shafts, which connect the two The support seat is fixed in the inner cavity of the second object, and the two fixed shafts are fixed by the shaft sleeve and the connecting structure. It simplifies the structural composition of the fixed structure and reduces the processing difficulty of parts. Moreover, the double-disc check valve assembled through the above-mentioned fixing structure avoids damage to the sealing waterline surface of the valve end surface by the way that the limit block is fixed from the valve outlet end surface, ensuring the integrity of the sealing waterline surface.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a fixed structure, a double-disc check valve and an assembly process. Background technique [0002] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. The double disc check valve has a high safety and reliability factor and can be widely used in many occasions. It is generally installed between two pipeline flanges by clamping, and some products and pipelines are connected by butt welding or welding. Flange connection. The double disc check valve is mainly composed of valve body, valve disc, pivot shaft, fixed shaft, torsion spring and other parts. There are two symmetrical semicircular sealing surfaces on the lower side of the inner cavity of the valve body, and a beam in the middle. Separated, there are two se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/03F16K27/02
Inventor 陆洪兴
Owner NEWAY VALVE SUZHOU