CN107676327A - Automatically the adjustable overflow valve calibrated - Google Patents

Automatically the adjustable overflow valve calibrated Download PDF

Info

Publication number
CN107676327A
CN107676327A CN201711185242.2A CN201711185242A CN107676327A CN 107676327 A CN107676327 A CN 107676327A CN 201711185242 A CN201711185242 A CN 201711185242A CN 107676327 A CN107676327 A CN 107676327A
Authority
CN
China
Prior art keywords
spring
adjusting
adjustable
plug
adjustable plate
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201711185242.2A
Other languages
Chinese (zh)
Inventor
王雅莲
Original Assignee
王雅莲
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 王雅莲 filed Critical 王雅莲
Priority to CN201711185242.2A priority Critical patent/CN107676327A/en
Publication of CN107676327A publication Critical patent/CN107676327A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/024Pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

Abstract

The invention discloses the adjustable overflow valve calibrated automatically, including housing, runner is provided with housing, plug and spring base are provided with runner, the first spring is provided between spring base and plug, there is taper adjustment portion and the threaded opening of tool on housing, open side is threaded with adjusting set, if dry slide is radially arranged in adjusting set and middle part is provided with overflow ducts, adjustable plate is provided with slideway, the second spring for strutting some adjustable plates is provided between adjustable plate and slideway end face, regulation front edge of board is provided with the inclined-plane coordinated with taper adjustment portion, every piece of adjustable plate is provided with some spacing raised lines close to flow passage side, elastic ring is provided with spring base, push the spring seat is provided with adjusting set to the electric pushrod of the first spring direction of compression movement and the oil return interface being connected with overflow ducts.This kind of overflow valve is capable of the oil pressure relief of regulation relief valve, stills remain in setting pressure after the first spring shortens failure, and be easily achieved the Automated condtrol of valve.

Description

Automatically the adjustable overflow valve calibrated
Technical field
The invention belongs to overflow valve technical field, the adjustable overflow valve specifically calibrated automatically.
Background technology
Overflow valve is hydraulic pressure control valve, main in hydraulic test to play level pressure overflow, voltage stabilizing, system unloaded with Safeguard protection acts on.
When system pressure exceedes specified value, the pressure of hydraulic oil overcomes spring force in overflow valve, partial high pressure Oil spilling road of the oil through overflow valve returns to fuel tank.When oil pressure is in safe range, spring, will be stifled in the presence of itself pretightning force Head is pressed on valve position, and overflow valve is closed.
The elastic force of spring can be gradually reduced in overflow valve during long-term use, if the spring force mistake of overflow valve It is small, or spring shortens failure, hydraulic oil can force plug to leave valve bit stream to enter oil spilling road under less than system authorized pressure, Interior leakage is caused, makes thrashing.Spring must be changed during repairing, then adjusts spring pressure to defined pressure using adjusting screw Power.Overflow reversal valve service life using this kind of structure is short, and it is troublesome in poeration to change spring.
Existing overflow valve needs to change the oil pressure relief of overflow valve by changing the decrement of compression spring, and uses This kind of mode adjust after overflow valve spring still can shorten failure after long-term use, now again need re-start tune Section, service life is short, adjusts trouble.
The content of the invention
In view of the shortcomings of the prior art, providing the adjustable overflow valve calibrated automatically, this kind of overflow valve can be adjusted the present invention The oil pressure relief of overflow valve, and setting pressure is stilled remain in after spring shortens failure, so as to extend overflow commutation The service life of valve, and it is easily achieved the Automated condtrol of valve.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:That calibrates automatically is adjustable Overflow valve, including housing, runner is provided with the housing, plug and spring base, the spring base are provided with the runner The first spring is provided between the plug, there is taper adjustment portion and the threaded opening of tool on the housing, it is described Open side is threaded with adjusting set, described if being radially arranged dry slide in the adjusting set and middle part is provided with overflow ducts Adjustable plate is provided with slideway, the second bullet for strutting some adjustable plates is provided between the adjustable plate and the slideway end face Spring, the regulation front edge of board are provided with the inclined-plane coordinated with the taper adjustment portion, and every piece of adjustable plate is close to the runner Side is provided with some spacing raised lines, and elastic ring is provided with the spring base, is provided with the adjusting set and promotes the spring Seat is to the oil return interface for compressing the electric pushrod of the first spring direction movement and being connected with the overflow ducts, the bullet The elastic force difference of first spring described in when spring abutment leans with the adjacent two spacing raised lines is less than first spring to described stifled The upper limit of elastic force prescribed limit and the difference of lower limit of head.This kind of overflow valve can be adjusted by adjusting the position of adjusting set Plate is slided in slideway, and so as to which regulation elasticity ring stretches into the distance of spacing raised line, spacing raised line institute is slipped over so as to adjust spring base The elastic force needed, until the elastic force that regulation to the spring base slips over the spacing raised line is equal to first spring to the plug Elastic force prescribed limit the upper limit complete regulation;In use for some time, compressed by electric pushrod push the spring seat direction The direction movement of first spring, elastic ring bending slip over spacing raised line, and the first spring is compressed, when electric pushrod is retracted, bullet Spring abutment is pushed back on one of them spacing raised line automatically by the elastic force of the first spring, due to the spring base and adjacent two limits The elastic force difference of the first spring is less than the upper limit of first spring to the elastic force prescribed limit of plug described in when position raised line leans With the difference of lower limit, therefore, now the first spring to the elastic force of plug all the time in prescribed limit.Therefore shorten in the first spring After failure by compress also can the first spring to the pressure of plug in prescribed limit so that overflow valve use the longevity Order elongated and easy to control, it is not necessary to tear valve open, and be easily achieved the Automated condtrol of valve.
In above-mentioned technical proposal, it is preferred that be provided with sealing ring between the opening and the adjusting set.Using the structure Sealing between increase opening and the adjusting set, prevents hydraulic fluid leak.
The present invention compared with prior art, has the advantages that:This kind of overflow valve can be by adjusting adjusting set Position causes adjustable plate to be slided in slideway, so as to which regulation elasticity ring stretches into the distance of spacing raised line, is slided so as to adjust spring base The elastic force needed for spacing raised line is crossed, until the elastic force that regulation slips over the spacing raised line to the spring base is equal to first bullet Spring completes regulation to the upper limit of the elastic force prescribed limit of the plug;In use for some time, bullet is promoted by electric pushrod The direction of spring abutment towards the first spring of compression is moved, and elastic ring bending slips over spacing raised line, and the first spring is compressed, and is pushed away electronic Bar retract when, spring base is pushed back on one of them spacing raised line automatically by the elastic force of the first spring, due to the spring base with The elastic force difference of first spring described in when the adjacent two spacing raised line leans is less than first spring and the elastic force of plug is advised Determine the upper limit of scope and the difference of lower limit, therefore, now the first spring to the elastic force of plug all the time in prescribed limit.Therefore exist First spring shorten failure after by compress also can the first spring to the pressure of plug in prescribed limit so that overflow The service life for flowing valve is elongated and easy to control, it is not necessary to tears valve open, and is easily achieved the Automated condtrol of valve.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of adjusting set in the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description:Referring to Fig. 1 to Fig. 2, automatically The adjustable overflow valve of calibration, including housing 1, be provided with runner 2 in the housing 1, be provided with the runner 2 plug 3 and Spring base 4, the first spring 5 is provided between the spring base 4 and the plug 3, there is taper adjustment portion 11 on the housing 1 And the threaded opening 12 of tool, 12 sides of the opening are threaded with adjusting set 6, if being radially arranged in the adjusting set 6 Dry slide 61 and middle part are provided with overflow ducts 66, and adjustable plate 62, the adjustable plate 62 and the slideway are provided with the slideway 61 Be provided with the second spring 63 that struts some adjustable plates 62 between 61 end faces, the front end of adjustable plate 62 be provided with it is described The inclined-plane 64 that taper adjustment portion 11 coordinates, every piece of adjustable plate 62 are provided with some spacing raised lines 65 close to the side of runner 2, Elastic ring 41 is provided with the spring base 4, is provided with the adjusting set 6 and promotes the spring base 4 to compression described first The electric pushrod 7 and the oil return interface 9 that is connected with the overflow ducts 66 of the direction of spring 5 movement, the spring base 4 with it is adjacent The elastic force difference of first spring 5 described in when the two spacing raised lines 65 lean is less than bullet of first spring 5 to the plug 3 The upper limit of power prescribed limit and the difference of lower limit.This kind of overflow valve can be by adjusting the position adjustable plate of adjusting set in cunning Slided in road, so as to which regulation elasticity ring stretches into the distance of spacing raised line, bullet needed for spacing raised line is slipped over so as to adjust spring base Power, until the elastic force that regulation to the spring base slips over the spacing raised line is equal to elastic force of first spring to the plug The upper limit of prescribed limit completes regulation;In use for some time, electric pushrod push the spring seat direction the first bullet of compression is passed through The direction movement of spring, elastic ring bending slip over spacing raised line, and the first spring is compressed, when electric pushrod is retracted, spring base quilt The elastic force of first spring is pushed back on one of them spacing raised line automatically, due to the spring base and the adjacent two spacing raised lines The elastic force difference of first spring described in when leaning is less than the upper limit and lower limit of first spring to the elastic force prescribed limit of plug Difference, therefore, now the first spring to the elastic force of plug all the time in prescribed limit.Therefore after the first spring shortens failure By compress also can the first spring to the pressure of plug in prescribed limit so that overflow valve service life become It is long and easy to control, it is not necessary to tear valve open, and be easily achieved the Automated condtrol of valve.The first described spring is to plug Elastic force prescribed limit refers to:The first spring is to plug elastic force set in advance during normal work.
Sealing ring 8 is provided between the opening 12 and the adjusting set 6.Using structure increase opening and the regulation Sealing between set, prevents hydraulic fluid leak.

Claims (2)

1. the adjustable overflow valve calibrated automatically, including housing(1), the housing(1)Inside it is provided with runner(2), the runner (2)It is interior to be provided with plug(3)And spring base(4), the spring base(4)With the plug(3)Between be provided with the first spring (5), it is characterised in that:The housing(1)It is upper that there is taper adjustment portion(11)And the threaded opening of tool(12), the opening (12)Side is threaded with adjusting set(6), the adjusting set(6)If dry slide has been radially arranged on(61)And middle part is provided with overflow Passage(66), the slideway(61)It is interior to be provided with adjustable plate(62), the adjustable plate(62)With the slideway(61)Set between end face Have some adjustable plates(62)The second spring strutted(63), the adjustable plate(62)Front end is provided with adjusts with the taper Section portion(11)The inclined-plane of cooperation(64), every piece of adjustable plate(62)Close to the runner(2)Side is provided with some spacing raised lines (65), the spring base(4)On be provided with elastic ring(41), the adjusting set(6)On be provided with and promote the spring base(4)To Compress first spring(5)The electric pushrod of direction movement(7)And with the overflow ducts(66)The oil return interface of connection (9), the spring base(4)With the adjacent two spacing raised lines(65)First spring described in when leaning(5)Elastic force difference be less than First spring(5)To the plug(3)The upper limit of elastic force prescribed limit and the difference of lower limit.
2. the adjustable overflow valve as claimed in claim 1 calibrated automatically, it is characterised in that:The opening(12)With the tune Section set(6)Between be provided with sealing ring(8).
CN201711185242.2A 2017-11-23 2017-11-23 Automatically the adjustable overflow valve calibrated Pending CN107676327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711185242.2A CN107676327A (en) 2017-11-23 2017-11-23 Automatically the adjustable overflow valve calibrated

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711185242.2A CN107676327A (en) 2017-11-23 2017-11-23 Automatically the adjustable overflow valve calibrated

Publications (1)

Publication Number Publication Date
CN107676327A true CN107676327A (en) 2018-02-09

Family

ID=61150701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711185242.2A Pending CN107676327A (en) 2017-11-23 2017-11-23 Automatically the adjustable overflow valve calibrated

Country Status (1)

Country Link
CN (1) CN107676327A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447174A (en) * 1993-08-02 1995-09-05 Hydrolux S.A.R.L. Pilot stage for pressure control valves
CN2210272Y (en) * 1994-02-03 1995-10-18 上海液压件二厂 Electric pressure valve
WO1998008012A1 (en) * 1996-08-19 1998-02-26 Australian Water Products Pty. Ltd. Outlet pressure limiting valve
CN203374967U (en) * 2013-07-16 2014-01-01 宁波海宏液压有限公司 Remote control overflow valve
CN103511678A (en) * 2013-09-26 2014-01-15 番禺珠江钢管(珠海)有限公司 Direct-acting overflow valve and method for establishing and releasing pressure thereof
CN203703274U (en) * 2014-02-28 2014-07-09 昆明中铁大型养路机械集团有限公司 Closed hydraulic system driving load valve for running control
US20140326335A1 (en) * 2011-12-14 2014-11-06 Numatics, Incorporated Adjustable Pressure Controlled Valve
CN203979543U (en) * 2014-06-04 2014-12-03 浙江水魔力清洁设备有限公司 A kind of fine setting safety valve
CN204403475U (en) * 2015-01-04 2015-06-17 江西绿城罗茨鼓风机有限公司 A kind of convenient Roots blower safety valve regulated
CN204573232U (en) * 2012-07-31 2015-08-19 米沃奇电动工具公司 Multifunction valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447174A (en) * 1993-08-02 1995-09-05 Hydrolux S.A.R.L. Pilot stage for pressure control valves
CN2210272Y (en) * 1994-02-03 1995-10-18 上海液压件二厂 Electric pressure valve
WO1998008012A1 (en) * 1996-08-19 1998-02-26 Australian Water Products Pty. Ltd. Outlet pressure limiting valve
US20140326335A1 (en) * 2011-12-14 2014-11-06 Numatics, Incorporated Adjustable Pressure Controlled Valve
CN204573232U (en) * 2012-07-31 2015-08-19 米沃奇电动工具公司 Multifunction valve
CN203374967U (en) * 2013-07-16 2014-01-01 宁波海宏液压有限公司 Remote control overflow valve
CN103511678A (en) * 2013-09-26 2014-01-15 番禺珠江钢管(珠海)有限公司 Direct-acting overflow valve and method for establishing and releasing pressure thereof
CN203703274U (en) * 2014-02-28 2014-07-09 昆明中铁大型养路机械集团有限公司 Closed hydraulic system driving load valve for running control
CN203979543U (en) * 2014-06-04 2014-12-03 浙江水魔力清洁设备有限公司 A kind of fine setting safety valve
CN204403475U (en) * 2015-01-04 2015-06-17 江西绿城罗茨鼓风机有限公司 A kind of convenient Roots blower safety valve regulated

Similar Documents

Publication Publication Date Title
US9476272B2 (en) Pressure setting tool and method of use
CN103291983A (en) Safety valve and hydraulic support with same
CN107676327A (en) Automatically the adjustable overflow valve calibrated
CN107605840A (en) Automatically the adjustable overflow reversal valve calibrated
CN103542150A (en) Pressure reducing valve with valve closing function
CN107654437A (en) A kind of adjustable overflow valve calibrated automatically
US2222014A (en) Well packing device
CN202426299U (en) Decompression valve for coffee machine and coffee machine with decompression valve
CN104695888A (en) Automatic backflow wellhead sealer
CN107676326A (en) Automatically the overflow valve calibrated
CN204082084U (en) High pressure tests sealed packer
CN107620820A (en) A kind of adjustable overflow reversal valve calibrated automatically
CN109209311A (en) A kind of level pressure water dispensing apparatus
CN203626692U (en) Automatic backflow type well head sealing device
CN107630851B (en) Automatically the overflow reversal valve calibrated
CN107605428B (en) One kind can pressure release shut-in well bridge plug
CN201013935Y (en) Selftightening type gate valve
CN107687526B (en) A kind of overflow valve calibrated automatically
CN204878906U (en) A difunctional valve for pressure water storage bucket
CN107654436A (en) A kind of overflow reversal valve calibrated automatically
CN209339919U (en) A kind of level pressure water dispensing apparatus
CN206501078U (en) A kind of 350 type water filling high pressure valve maintenance tools
CN204212957U (en) A kind of anti-leak power match control valve for oil hydraulic pump
CN204113204U (en) Horizontal well packer
CN201288867Y (en) Superposed installation pressure reducing valve

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination