Filtering check valve and side block with same

A technology of check valve and filter screen, which is applied in the direction of filtration and separation, fixed filter element filter, control valve, etc., can solve the problems of side block thread damage, use of very large labor intensity, etc., and achieve the effect of dismantling the thread and saving labor

Pending Publication Date: 2022-04-29
JINAN ABURE MASCH EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Known spray guns for spraying materials such as polyurethane foam or polyurea have a pair of side blocks for distributing components A and B to the gun, but the fluid often contacts the side seal box, filter check valve and side The

Method used

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  • Filtering check valve and side block with same
  • Filtering check valve and side block with same
  • Filtering check valve and side block with same

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The filter check valve 48 is composed of a main body 32 , an O-ring 38 , a filter screen 43 , a spring 33 , a steel ball 39 and a valve seat 34 . One side of the thread 32a of the main body 32 is designed with an O-ring installation groove 32b. When the main body 32 is tightened on the side block housing 28, the position of the O-ring installation groove 32b is closer to the thread 32a. For fluid, install an O-ring 38 on the O-ring installation groove 32b to cooperate with the side block housing 28 to seal, so that the fluid will not touch the thread where the main body 32 and the side block housing 28 are fixed. In this way, there will be no problem that components such as resin or isocyanate crystallize and solidify at the thread to cause the thread to stick, so that the disassembly of the thread is very labor-saving and the thread will not be damaged.

[0020] There is a hole in the middle of the valve seat 34, and the fluid flows into the main body 32 through the va...

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Abstract

The invention relates to a filtering check valve and a side block with the filtering check valve. The filtering check valve is used on a spray gun for spraying rapid solidification materials such as polyurethane foam and polyurea. The invention aims to solve the problem that the side block is difficult to disassemble and easy to damage. In order to achieve the purpose, a side sealing box and a filtering check valve in the side block are each provided with an O-shaped ring which is matched with a side block shell in a sealing mode, the installation positions of the O-shaped rings are closer to fluid than threads, and therefore the fluid cannot make contact with the threads at the fixing positions of the side sealing box, the filtering check valve and the side block shell. Therefore, the problem of thread adhesion caused by crystallization and solidification of components such as resin or isocyanate at the thread is solved, so that the thread is very labor-saving to disassemble, and the thread is not damaged.

Description

technical field [0001] The invention relates to a filter check valve and its side block, which is used on a spray gun for spraying polyurethane foam, polyurea and other fast-setting materials. The A component of polyurethane foam, polyurea and other materials is isocyanate, and the B component is a pre-formulated compound, which includes polyether resin, catalyst, surfactant and blowing agent. After the isocyanate or resin crystallizes and solidifies, it is very strong and has a strong viscosity. Background technique [0002] Known spray guns for spraying materials such as polyurethane foam or polyurea have a pair of side blocks for distributing components A and B to the gun, but the fluid often contacts the side seal box, filter check valve and side The thread in the fixed position of the block shell makes the isocyanate or resin crystallize and solidify on the thread, which requires a very large labor intensity during disassembly, which often causes damage to the thread o...

Claims

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Application Information

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IPC IPC(8): F16K15/04F16K27/02F16L15/04B01D35/04B01D29/11
CPCF16K15/044F16K27/0209F16K27/0245F16L15/04B01D35/046B01D29/11
Inventor 曹长鹤刘绍燕
Owner JINAN ABURE MASCH EQUIP CO LTD
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