EP1918593A3 - Depressurization apparatus for hydraulic pipe and hydraulic pipe structure - Google Patents

Depressurization apparatus for hydraulic pipe and hydraulic pipe structure Download PDF

Info

Publication number
EP1918593A3
EP1918593A3 EP07119211A EP07119211A EP1918593A3 EP 1918593 A3 EP1918593 A3 EP 1918593A3 EP 07119211 A EP07119211 A EP 07119211A EP 07119211 A EP07119211 A EP 07119211A EP 1918593 A3 EP1918593 A3 EP 1918593A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic pipe
depressurization
pipes
oil
valves
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.)
Granted
Application number
EP07119211A
Other languages
German (de)
French (fr)
Other versions
EP1918593B1 (en
EP1918593A2 (en
Inventor
Takanori c/o KOBELCO CON. MACH. CO. LTD Yamasaki
Nobuhiro c/o KOBELCO CON. MACH. CO. LTD Koga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobelco Construction Machinery Co Ltd
Original Assignee
Kobelco Construction Machinery Co Ltd
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 Kobelco Construction Machinery Co Ltd filed Critical Kobelco Construction Machinery Co Ltd
Publication of EP1918593A2 publication Critical patent/EP1918593A2/en
Publication of EP1918593A3 publication Critical patent/EP1918593A3/en
Application granted granted Critical
Publication of EP1918593B1 publication Critical patent/EP1918593B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/007—Overload
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/005—Filling or draining of fluid systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Details Of Valves (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A depressurization block (8) is provided lying over a plurality of hydraulic pipes (3 and 4). The depressurization block (8) is provided with main passages to which the pipes (3 and 4) are connected, depressurization valves (10) for removing oil on the inside of the pipes by an opening operation from the exterior, and a drain passage for joining and guiding the oil removed from the depressurization valves (10), and the oil in all the pipes (3 and 4) is all removed to the exterior. An opening operation is performed to operation elements of the depressurization valves (10) at the same time by a push plate having protrusions and the operation elements are held in an opening state.
EP20070119211 2006-11-01 2007-10-24 Depressurization apparatus for hydraulic pipe and hydraulic pipe structure Not-in-force EP1918593B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006297792A JP4935301B2 (en) 2006-11-01 2006-11-01 Hydraulic pipe pressure release device and hydraulic pipe structure

Publications (3)

Publication Number Publication Date
EP1918593A2 EP1918593A2 (en) 2008-05-07
EP1918593A3 true EP1918593A3 (en) 2010-08-11
EP1918593B1 EP1918593B1 (en) 2012-08-08

Family

ID=39016278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070119211 Not-in-force EP1918593B1 (en) 2006-11-01 2007-10-24 Depressurization apparatus for hydraulic pipe and hydraulic pipe structure

Country Status (2)

Country Link
EP (1) EP1918593B1 (en)
JP (1) JP4935301B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5497707B2 (en) * 2011-08-09 2014-05-21 株式会社クボタ Working machine
CN103195127B (en) * 2013-03-29 2015-11-25 上海三一重机有限公司 hydraulic pipeline structure and excavator
DE102020106048A1 (en) * 2020-03-05 2021-09-09 Komatsu Germany Gmbh HYDRAULIC EXCAVATOR
FR3109977A1 (en) * 2020-05-08 2021-11-12 Cryl Safety decompression equipment for hydraulic circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006233571A (en) * 2005-02-24 2006-09-07 Kobelco Contstruction Machinery Ltd Pipe connecting method of work machine and its connecting structure
JP2007262778A (en) * 2006-03-29 2007-10-11 Kobelco Contstruction Machinery Ltd Pipe connecting device of working machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2559612B2 (en) * 1988-02-29 1996-12-04 株式会社小松製作所 Control valve device
JP2545176Y2 (en) * 1989-01-26 1997-08-25 東芝機械株式会社 Compound control valve
JP2613149B2 (en) * 1992-03-10 1997-05-21 株式会社ナブコ Piping connection device
JP3499962B2 (en) * 1995-04-06 2004-02-23 三菱重工業株式会社 Hydraulic control valve
JPH11230394A (en) * 1998-02-16 1999-08-27 Kotobuki Sangyo Kk Connecting equipment for fluid circuit piping
JP3294550B2 (en) * 1998-06-04 2002-06-24 日立建機株式会社 Hydraulic circuit for connecting quick disconnect fittings of vertical excavators
JP4376399B2 (en) * 2000-01-20 2009-12-02 日東工器株式会社 Residual pressure release adapter
JP2002038529A (en) * 2000-07-27 2002-02-06 Kubota Corp Hydraulic circuit structure for backhoe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006233571A (en) * 2005-02-24 2006-09-07 Kobelco Contstruction Machinery Ltd Pipe connecting method of work machine and its connecting structure
JP2007262778A (en) * 2006-03-29 2007-10-11 Kobelco Contstruction Machinery Ltd Pipe connecting device of working machine

Also Published As

Publication number Publication date
EP1918593B1 (en) 2012-08-08
JP2008115905A (en) 2008-05-22
JP4935301B2 (en) 2012-05-23
EP1918593A2 (en) 2008-05-07

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