Double-sealing one-way valve and plunger pump provided with valve

A double-seal and one-way valve technology, which is applied to parts of pumping devices for elastic fluids, pump elements, variable displacement pump parts, etc., can solve the problems of not improving the sealing performance of one-way valves well, Achieve the effect of convenient installation, convenient assembly and improved sealing performance

Active Publication Date: 2019-08-16
台州高知科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the one-way valve can reduce the probability of contact wear between the valve plate and the valve cover, it does not improve the sealing performance of the one-way valve very well.

Method used

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  • Double-sealing one-way valve and plunger pump provided with valve
  • Double-sealing one-way valve and plunger pump provided with valve
  • Double-sealing one-way valve and plunger pump provided with valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, a double-sealed one-way valve,

[0044] Such as figure 1 with figure 2As shown, a double-sealed one-way valve includes an upper casing 1 and a lower casing 2. The upper casing 1 and the lower casing 2 cooperate to form an installation cavity. The lower end of the lower casing 2 is provided with a fluid inlet 3. A fluid outlet 4 is opened on the side of the housing 1 , the fluid enters the installation cavity from the fluid inlet 3 , and finally flows out of the installation cavity through the fluid outlet 4 . An elastic member 6 and a valve plate 5 are installed in the installation cavity, and the valve plate 5 is in conflict with the lower housing 2 under the action of the elastic member 6 , thereby closing the fluid outlet 4 . A sealing cover 7 is fixed on the outer side of the upper casing 1, and the sealing cover 7 includes elastic cover sheets 8, the number of which is several pieces, and there are partition grooves 9 between adjacent two elastic c...

Embodiment 2

[0053] Embodiment two, a kind of plunger pump

[0054] Such as Figure 12 and 13 As shown, a plunger pump includes a pump body 24, and the pump body 24 is formed by connecting a pump head 25 and a pump casing 26 by screws. A plunger chamber 27 is opened in the pump head 25, and a water inlet 28 and a water outlet 29 are connected to the plunger chamber 27. A plunger 30 is slidably disposed in the plunger chamber 27, and the plunger 30 is hollow. The double-seal one-way valve 31 described in the first embodiment is installed on the water inlet 28 and the water outlet 29 . A plunger guide sleeve 32 is disposed inside the pump housing 26 , and the plunger 30 is installed in the plunger guide sleeve 32 and extends into the pump housing 26 through the plunger guide sleeve 32 . The rotating shaft 33 in the pump casing 26 uses a camshaft, and the rear end of the plunger 30 interferes with the camshaft 33 through a tappet 30 . The tappet 35 includes a fixed portion 36 and a rollin...

Embodiment 3

[0055] Embodiment three, a plunger pump,

[0056] The difference between the third embodiment and the second embodiment is that the rotating shaft 33 used in the third embodiment is a crankshaft, and the crankshaft and the plunger 30 are connected through a connecting rod, thereby driving the plunger 30 to reciprocate in the plunger cavity 27, realizing water absorption and Press water.

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PUM

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Abstract

The invention discloses a double-sealing one-way valve and a plunger pump provided with the double-sealing one-way valve. The double-sealing one-way valve comprises an upper shell and a lower shell, wherein a fluid inlet is formed in the lower shell, and a fluid outlet is formed in the upper shell; a valve plate and an elastic piece are arranged between the upper shell and the lower shell, and thevalve plate abuts against the lower shell under the action of the elastic piece so that the fluid inlet is closed; and a sealing cover is fixed to the outer side of the upper shell, the sealing covercomprises an elastic cover piece, partition grooves are formed in the two sides of the elastic cover piece, and the elastic cover piece covers the fluid outlet. According to the double-sealing one-way valve, good sealing performance can be obtained by arranging double-way sealing.

Description

technical field [0001] The invention relates to a one-way valve, in particular to a double-sealed one-way valve. Background technique [0002] The water inlet and outlet of the plunger chamber of the existing plunger pump are equipped with one-way valves. When the plunger chamber absorbs water, the one-way valve at the water inlet opens and the one-way valve at the water outlet closes, and the water enters the plunger chamber. Inside, when draining, the one-way valve of the water inlet is closed, and the one-way valve of the water outlet is opened, so as to realize water absorption and water pressure. [0003] Most of the existing one-way valves are single-channel sealed. As shown in the Chinese patent No. 201810087451.1, the one-way valve includes a valve seat and a valve cover fixedly connected to the valve seat. The valve cover is equipped with The elastic pressing part, and the valve plate between the elastic pressing part and the valve seat, a valve core capable of rec...

Claims

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Application Information

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IPC IPC(8): F04B53/10
CPCF04B53/1032
Inventor 陈文志
Owner 台州高知科技有限公司
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