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Low-cost fire extinguisher plastic valve and preparation method thereof

A fire extinguisher, low-cost technology, applied in fire rescue and other directions, can solve the problems of loss of sealing performance of fire extinguisher valves, high production cost, complex structure, etc., and achieve the effects of increasing market competitiveness, good dimensional stability, and improving mechanical properties.

Inactive Publication Date: 2017-05-31
MAANSHAN TIANRUI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems in the prior art that the valve ejector rod assembly and valve body of the fire extinguisher are made of metal materials, the production cost is high, the structure is complicated, and the sealing performance of the fire extinguisher valve is lost due to easy corrosion, and a low-cost valve is provided. Fire extinguisher plastic valve and its preparation method; on the one hand, the invention improves the structure of the ejector rod assembly, so that the structure of the ejector rod assembly is simple and easy to assemble; on the other hand, the ejector rod and the valve body are changed to use plastic nylon materials Manufacture, and optimize the processing technology of the ejector rod and valve body, so that the ejector rod and valve body can fully meet the requirements of corrosion resistance, high pressure resistance, high and low temperature resistance put forward by the internal environment of the fire extinguisher valve, and the use effect of the fire extinguisher valve is ideal. Easy to promote and apply

Method used

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  • Low-cost fire extinguisher plastic valve and preparation method thereof
  • Low-cost fire extinguisher plastic valve and preparation method thereof
  • Low-cost fire extinguisher plastic valve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] combine figure 2 , image 3 and Figure 4 , the traditional fire extinguisher valve mainly includes a standpipe seat 1, a spring 2, a valve body 3, a push rod assembly 4, a pressing handle 51 and a carrying handle 52. The valve body 3 is closed and connected with the storage bottle of the fire extinguisher through the standpipe seat 1 , and is provided with a side channel 31 , an upper channel 32 and a lower channel 33 . The valve body 3 is provided with a ejector rod assembly 4, the lower part of the ejector rod assembly 4 is provided with a spring 2, and the upper part is pressed against the pressure handle 51, and the ejector rod assembly 4 passes through the upper passage 32 and the lower passage 33 of the valve body 3 to be used for To realize the sealed filling of the fire extinguishing agent, the press handle 51 and the carrying handle 52 are connected axially by the rivet 53, and a safety pin 62 is also arranged between the pressing handle 51 and the carrying ...

Embodiment 2

[0057] A low-cost fire extinguisher plastic valve in this embodiment is basically the same as in Embodiment 1, except that the nylon composite material used in this embodiment includes the following components:

[0058]

[0059] In this embodiment, the preparation process of the fire extinguisher valve is as follows:

[0060] Step 1. Mix 35 parts of nylon 66 slices, 30 parts of long glass fiber, 1 part of silicon carbide, 1 part of talcum powder and 0.5 part of mica powder under stirring conditions;

[0061] Step 2. Ejector injection molding: Put the mixed raw materials into the feed port of the injection molding machine, and after melting, quickly inject them into the ejector cavity at high pressure with the help of the thrust of the screw; the screw speed of the injection molding machine is 80rpm; the length of the screw of the injection molding machine The diameter ratio is 22. The temperature of the feeding section of the injection molding machine is controlled at 290°...

Embodiment 3

[0066] A low-cost fire extinguisher plastic valve in this embodiment is basically the same as in Embodiment 1, except that the nylon composite material used in this embodiment includes the following components:

[0067]

[0068] The preparation process of the fire extinguisher valve in the present embodiment is as follows:

[0069] Step 1. Mix 38 parts of nylon 66 slices, 28 parts of long glass fibers, 1.5 parts of silicon carbide, 0.6 parts of talcum powder and 0.6 parts of mica powder under stirring conditions;

[0070] Step 2. Put the mixed raw materials into the feeding port of the injection molding machine, and inject them into the mold cavity quickly with the thrust of the screw at high pressure after melting; the screw speed of the injection molding machine is 90rpm; the length-to-diameter ratio of the screw of the injection molding machine is 20. The temperature of the feeding section of the injection molding machine is controlled at 295°C; the temperature of the co...

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Abstract

The invention discloses a low-cost fire extinguisher plastic valve and a preparation method thereof, and belongs to the technical field of fire extinguishers. A push rod and a valve body are integrally molded by injection by using a nylon composite material. The preparation method comprises the following steps: (1) slicing nylon 66, and evenly mixing long glass fiber, silicon carbide, talc and mica powder under the stirring condition; (2) putting mixed raw materials into a feeding port of an injection molding machine, rapidly injecting into a mold cavity at high pressure by means of the thrust of a screw after melting, opening a mold after cooling and curing, and immersing primary products of the push rod and the valve body into 5 to 20 DEG C water to be cooled; and (3) boiling the molded push rod and valve body products at high temperature after being tested. The push rod and the valve body provided by the invention can completely meet requirements of corrosion resistance, high pressure resistance and high and low temperature resistance provided by the internal environment of the fire extinguisher valve, are ideal in using effect, and are conveniently popularized and applied.

Description

technical field [0001] The invention relates to the technical field of fire extinguishers, in particular to a low-cost plastic valve for fire extinguishers and a preparation method thereof. Background technique [0002] With the continuous progress of society, various flammable liquids, solid raw materials, and materials are increasing, and various fire accidents occur from time to time. Fire extinguishers, as one of the most commonly used means of fire extinguishing, are widely used in various places. [0003] The fire extinguisher valve is the key valve control part of the stored pressure fire extinguisher, its structure and composition refer to figure 2 and image 3 , mainly including riser seat 1, spring 2, valve body 3, ejector rod assembly 4, pressing handle 51 and carrying handle 52. The valve body 3 is closed and connected with the storage bottle of the fire extinguisher through the standpipe seat 1. The ejector rod assembly 4 is arranged in the valve body 3. The ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K3/34B29C45/76B29C45/77B29C45/78B29C45/17B29C45/72B29C71/00A62C13/76
CPCC08K13/04A62C13/76B29C45/17B29C45/72B29C45/76B29C45/77B29C45/78B29C71/00B29C2945/76498B29C2945/76551B29C2945/76605C08K3/34C08K7/14C08K2201/004C08K2201/014C08L2201/08C08L77/06
Inventor 尹华
Owner MAANSHAN TIANRUI IND
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