Water pump pliers

A water pump and pliers handle technology, which is applied in the direction of pliers, magnetic materials, furnace types, etc., can solve the problems of water pump pliers without protective devices, water pump pliers that cannot be used, and cannot be disassembled, and achieve a wide application range, simple structure, and convenient operation. Effect

Active Publication Date: 2014-09-03
NINGBO YINZHOU YONGJIA ELECTRICAL TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the water pump pliers are integrated and cannot be disassembled. If the water pump pliers are partially damaged, the parts cannot be replaced, making the water pump pliers unusable, and most of the water pump pliers have no protective device, which is easy to cause accidental injury during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The raw materials were prepared according to the composition and mass percentage of the first clamping part and the second clamping part in Example 1 in Table 1. Then put the prepared raw materials into a vacuum intermediate frequency induction furnace for smelting. After smelting, continue to heat-retain and refine at 1460°C for 5 minutes. After refining, pour molten samarium-cobalt alloy liquid into a mold to obtain samarium-cobalt alloy. Then the prepared samarium-cobalt alloy was subjected to hydrogen crushing and ball milling to obtain 3-5 μm magnetic powder, and the prepared magnetic powder was oriented under a magnetic field of 1.6T and pressed into shape, and then subjected to cold isostatic pressing under a pressure of 230MPa, A first clamping portion and a second clamping portion blank are obtained.

[0061] After the blanks of the first clamping part and the second clamping part are prepared, the blanks are sintered in a sintering furnace under the protection...

Embodiment 2

[0063] The raw materials were prepared according to the composition and mass percentage of the first clamping part and the second clamping part in Example 2 of Table 1. Then put the prepared raw materials into a vacuum intermediate frequency induction furnace for smelting. After smelting, continue to heat-retain and refine at 1490°C for 7 minutes. After refining, pour molten samarium-cobalt alloy liquid into a mold to obtain samarium-cobalt alloy. Then the prepared samarium-cobalt alloy is subjected to hydrogen crushing and ball milling to obtain 3-5 μm magnetic powder, and the prepared magnetic powder is oriented and pressed into shape under a magnetic field of 1.8T, and then cold isostatic pressing is carried out under a pressure of 250MPa, A first clamping portion and a second clamping portion blank are obtained.

[0064] After the blanks of the first clamping part and the second clamping part are prepared, the blanks are sintered in a sintering furnace under the protection...

Embodiment 3

[0066] The raw materials were prepared according to the composition and mass percentage of the first clamping part and the second clamping part in Example 3 in Table 1. Then put the prepared raw materials into a vacuum intermediate frequency induction furnace for smelting. After the smelting is completed, continue to heat-retain and refine at 1500°C for 6 minutes. After refining, pour the molten samarium-cobalt alloy liquid into the mold to obtain the samarium-cobalt alloy. Then the prepared samarium-cobalt alloy was subjected to hydrogen crushing and ball milling to obtain 3-5 μm magnetic powder, and the prepared magnetic powder was oriented and pressed into shape under a magnetic field of 1.9T, and then subjected to cold isostatic pressing under a pressure of 270MPa, A first clamping portion and a second clamping portion blank are obtained.

[0067]After the blanks of the first clamping part and the second clamping part are prepared, the blanks are sintered in a sintering fu...

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PUM

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Abstract

The invention provides water pump pliers. The water pump pliers comprise a first fixed pliers arm, a second fixed pliers arm, a first movable pliers arm, a second movable pliers arm, a first clamping part, a second clamping part, a limiting rod and a connecting rod, wherein the first fixed pliers arm and the second fixed pliers arm are fixedly connected to from a fixed pliers arm assembly, the first movable pliers arm and the second movable pliers arm are hinged to the space between the first fixed pliers arm and the second fixed pliers arm through a sliding piece, through grooves are formed in the middle of the first fixed pliers arm and in the middle of the second fixed pliers arm respectively, the two ends of the sliding piece are movably installed in the two through grooves respectively, the limiting rod is arranged between the first fixed pliers arm and the second fixed pliers arm, a sliding groove is formed in the limiting rod, one end of the connecting rod is installed on the first fixed pliers arm, and the other end of the connecting rod is installed on the movable pliers arms. According to the water pump pliers, both the first clamping part and the second clamping part are made of rare earth permanent magnetic materials, are magnetic and can attract each other, in this way, a part is clamped by a pliers head, the clamping force is increased, operation is convenient, and working efficiency is improved; the water pump pliers are simple in structure, detachable and high in safety performance.

Description

technical field [0001] The invention belongs to the technical field of hardware tools and relates to a water pump pliers. Background technique [0002] Water pump pliers are used to clamp flat or cylindrical metal parts, and are commonly used tools in the installation and maintenance of automobiles, internal combustion engines, agricultural machinery and indoor pipelines. [0003] The function of the water pump wrench is similar to that of the pipe wrench, but it is lighter, smaller and easier to use than the pipe wrench. It is more suitable for household non-professional emergency or simple installation of water pipes, so it is used more frequently. [0004] At present, most water pump pliers are integrated and cannot be disassembled. If part of the water pump pliers is damaged, the parts cannot be replaced and the water pump pliers cannot be used. Moreover, most water pump pliers have no protective devices, which may easily cause accidental injury during use. [0005] To ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B7/00B25B7/02B25B7/10H01F1/053C22C30/02B22F3/16B22F5/00C21D9/00
CPCB22F3/16B22F5/00B25B7/00B25B7/04B25B7/10C21D9/00C22C30/02H01F1/0536
Inventor 候红光
Owner NINGBO YINZHOU YONGJIA ELECTRICAL TOOLS
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