CN103742681A - High-pressure combined one-way valve - Google Patents

High-pressure combined one-way valve Download PDF

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Publication number
CN103742681A
CN103742681A CN201310518064.6A CN201310518064A CN103742681A CN 103742681 A CN103742681 A CN 103742681A CN 201310518064 A CN201310518064 A CN 201310518064A CN 103742681 A CN103742681 A CN 103742681A
Authority
CN
China
Prior art keywords
cavity
valve
channel
spool
pressure
Prior art date
Application number
CN201310518064.6A
Other languages
Chinese (zh)
Inventor
林洪才
姜宇峰
Original Assignee
江苏合丰机械制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏合丰机械制造有限公司 filed Critical 江苏合丰机械制造有限公司
Priority to CN201310518064.6A priority Critical patent/CN103742681A/en
Publication of CN103742681A publication Critical patent/CN103742681A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/105Three-way check or safety valves with two or more closure members

Abstract

The invention relates to a high-pressure combined one-way valve. The high-pressure combined one-way valve comprises a valve body. A first channel, a first cavity, a conversion channel, a pre-pressurization channel, a second cavity and a pressurization channel are sequentially arranged in the valve body, wherein every two adjacent parts are communicated with each other, a second channel is also arranged in the valve body and communicated with the conversion valve, a first valve element matched with the first cavity is movably arranged in the first cavity, and a second valve element matched with the second cavity is movably arranged in the second cavity. The pressure difference of the two sides of the one-way valve close to a working pipeline is large, and the one-way valve is good in sealing performance and long in service life.

Description

High pressure combination check valve
Technical field
The present invention relates to a kind of high pressure combination check valve.
Background technique
At present, an one-way valve is all only set in nearly all hydraulic expanding-forming machine, large supercharged device is arranged on to one-way valve outside, but this set makes one-way valve both sides all bear high pressure, has affected sealing and the working life of one-way valve.
Summary of the invention
Technical problem to be solved by this invention is: a kind of high pressure combination check valve being combined by two one-way valves is provided, makes one-way valve sealing better, working life is longer.
For addressing the above problem, the technical solution used in the present invention is: high pressure combination check valve, comprise valve body, in described valve body, be disposed with the adjacent first passage that both are interconnected, the first cavity, ALT-CH alternate channel, pre-Pressure channel, the second cavity and Pressure channel, in valve body, be also provided with second channel, second channel is connected with ALT-CH alternate channel, in the first cavity, be movably set with the first spool matching with the first cavity, in the second cavity, be movably set with the second spool matching with the second cavity.
Described the first cavity is identical with the second cavity body structure, described the first spool and second valve cored structure and direction are all identical, on the first spool outer wall, be provided with the inclined-plane matching with the first cavity inner wall, the sealing of formation inclined-plane, and form corner angle on the first spool outer wall, the first spool is provided with inner chamber near one end of ALT-CH alternate channel, inner chamber is connected with the first cavity, in inner chamber, be provided with spring, spring one end and internal chamber wall offset, the spring the other end and the first cavity wall offset, edges and corners at the first spool are provided with pod apertures, pod apertures one end is communicated with inner chamber, the pod apertures the other end is connected with the first cavity.
The invention has the beneficial effects as follows: above-mentioned a kind of high pressure combination check valve, by two one-way valves, combined, centre is provided with pre-Pressure channel, can in the middle of two one-way valves, place a pre-pressurized cylinder, make near the pressure difference on the one-way valve both sides of working line larger, sealing is better, and working life is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of high pressure combination check valve of the present invention.
In figure: 1, valve body, 2, first passage, 3, the first cavity, 4, ALT-CH alternate channel, 5, pre-Pressure channel, 6, the second cavity, 7, Pressure channel, 8, second channel, 9, the first spool, 10, the second spool, 11, inner chamber, 12, spring, 13, pod apertures.
Embodiment
Below by specific embodiment, high pressure combination check valve of the present invention is described in further detail.
As shown in Figure 1, high pressure combination check valve, comprise valve body 1, in described valve body 1, be disposed with the adjacent first passage that both are interconnected 2, the first cavity 3, ALT-CH alternate channel 4, pre-Pressure channel 5, the second cavity 6 and Pressure channel 7, in valve body 1, be also provided with second channel 8, second channel 8 is connected with ALT-CH alternate channel 4, is movably set with in the first spool 9, the second cavitys 6 that match with the first cavity 3 and is movably set with the second spool 10 matching with the second cavity 6 in the first cavity 3.
Described the first cavity 3 is identical with the second cavity 6 structures, described the first spool 9 is all identical with direction with the second spool 10 structures, on the first spool 9 outer walls, be provided with the inclined-plane matching with the first cavity 3 inwalls, the sealing of formation inclined-plane, and form corner angle on the first spool 9 outer walls, the first spool 9 is provided with inner chamber 11 near one end of ALT-CH alternate channel 4, inner chamber 11 is connected with the first cavity 3, in inner chamber 11, be provided with spring 12, spring 12 one end and inner chamber 11 walls offset, spring 12 the other ends and the first cavity 3 walls offset, in the edges and corners of the first spool 9, be provided with pod apertures 13, pod apertures 13 one end are communicated with inner chamber 11, pod apertures 13 the other ends are connected with the first cavity 3.
In use, first passage 2 is connected with water pump, the air that water filling and compression do not drain, water enters pre-Pressure channel 5 from first passage 2, pre-pressurized cylinder is connected with second channel 8, and pre-pressurized cylinder supercharging, backs down the second spool 10, water enters the second cavity 6 from pre-Pressure channel 5 and enters Pressure channel 7 again, Pressure channel 7 is connected with pressurized cylinder and pipe fitting, uses pressurized cylinder supercharging, and water is injected after pipe fitting, continue supercharging, until complete pipe fitting bulging.Use this high pressure combination check valve, supercharging forming process is simpler, has adopted the mode of pre-supercharging, makes near the pressure difference on the one-way valve both sides of working line greatlyr, and sealing is better, and working life is longer.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.

Claims (2)

1. high pressure combination check valve, comprise valve body, it is characterized in that: in described valve body, be disposed with the adjacent first passage that both are interconnected, the first cavity, ALT-CH alternate channel, pre-Pressure channel, the second cavity and Pressure channel, in valve body, be also provided with second channel, second channel is connected with ALT-CH alternate channel, in the first cavity, be movably set with the first spool matching with the first cavity, in the second cavity, be movably set with the second spool matching with the second cavity.
2. high pressure combination check valve according to claim 1, it is characterized in that: described the first cavity is identical with the second cavity body structure, described the first spool is all identical with second valve cored structure and direction, on the first spool outer wall, be provided with the inclined-plane matching with the first cavity inner wall, the sealing of formation inclined-plane, and form corner angle on the first spool outer wall, the first spool is provided with inner chamber near one end of ALT-CH alternate channel, inner chamber is connected with the first cavity, in inner chamber, be provided with spring, spring one end and internal chamber wall offset, the spring the other end and the first cavity wall offset, edges and corners at the first spool are provided with pod apertures, pod apertures one end is communicated with inner chamber, the pod apertures the other end is connected with the first cavity.
CN201310518064.6A 2013-10-28 2013-10-28 High-pressure combined one-way valve CN103742681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310518064.6A CN103742681A (en) 2013-10-28 2013-10-28 High-pressure combined one-way valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310518064.6A CN103742681A (en) 2013-10-28 2013-10-28 High-pressure combined one-way valve

Publications (1)

Publication Number Publication Date
CN103742681A true CN103742681A (en) 2014-04-23

Family

ID=50499731

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310518064.6A CN103742681A (en) 2013-10-28 2013-10-28 High-pressure combined one-way valve

Country Status (1)

Country Link
CN (1) CN103742681A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235435A (en) * 2014-08-29 2014-12-24 苏州福润机械有限公司 Stacked double throttle check valve
CN105135004A (en) * 2015-09-29 2015-12-09 韩昌求 Check valve
CN108253160A (en) * 2016-12-29 2018-07-06 比亚迪股份有限公司 Expand switch valve
CN108368946A (en) * 2015-10-14 2018-08-03 艾珂伦公司 Lag formula Fluid valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2406128Y (en) * 1999-11-18 2000-11-15 南京大地水刀有限公司 High-low-pressure non-return valve group
WO2005039799A1 (en) * 2003-10-24 2005-05-06 Hydroformning Design Light Ab Method and apparatus for supplying fluid
CN202597788U (en) * 2012-03-28 2012-12-12 浙江澳川液压器材有限公司 Hydraulic check valve
CN203532871U (en) * 2013-10-28 2014-04-09 江苏合丰机械制造有限公司 High-pressure combination check valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2406128Y (en) * 1999-11-18 2000-11-15 南京大地水刀有限公司 High-low-pressure non-return valve group
WO2005039799A1 (en) * 2003-10-24 2005-05-06 Hydroformning Design Light Ab Method and apparatus for supplying fluid
CN202597788U (en) * 2012-03-28 2012-12-12 浙江澳川液压器材有限公司 Hydraulic check valve
CN203532871U (en) * 2013-10-28 2014-04-09 江苏合丰机械制造有限公司 High-pressure combination check valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235435A (en) * 2014-08-29 2014-12-24 苏州福润机械有限公司 Stacked double throttle check valve
CN105135004A (en) * 2015-09-29 2015-12-09 韩昌求 Check valve
CN105135004B (en) * 2015-09-29 2018-05-11 王志娟 Check-valves
CN108368946A (en) * 2015-10-14 2018-08-03 艾珂伦公司 Lag formula Fluid valve
CN108253160A (en) * 2016-12-29 2018-07-06 比亚迪股份有限公司 Expand switch valve

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Application publication date: 20140423