EP1124063B1 - Clapet anti-retour piloté - Google Patents

Clapet anti-retour piloté Download PDF

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Publication number
EP1124063B1
EP1124063B1 EP20010102268 EP01102268A EP1124063B1 EP 1124063 B1 EP1124063 B1 EP 1124063B1 EP 20010102268 EP20010102268 EP 20010102268 EP 01102268 A EP01102268 A EP 01102268A EP 1124063 B1 EP1124063 B1 EP 1124063B1
Authority
EP
European Patent Office
Prior art keywords
line
piston
valve
connection
seal
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.)
Expired - Lifetime
Application number
EP20010102268
Other languages
German (de)
English (en)
Other versions
EP1124063A3 (fr
EP1124063A2 (fr
Inventor
Ulrich Schulz
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.)
Weber Hydraulik GmbH Germany
Original Assignee
Weber Hydraulik GmbH Germany
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
Priority claimed from DE10006510A external-priority patent/DE10006510B4/de
Application filed by Weber Hydraulik GmbH Germany filed Critical Weber Hydraulik GmbH Germany
Publication of EP1124063A2 publication Critical patent/EP1124063A2/fr
Publication of EP1124063A3 publication Critical patent/EP1124063A3/fr
Application granted granted Critical
Publication of EP1124063B1 publication Critical patent/EP1124063B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C3/00—Circuit elements having moving parts
    • F15C3/06—Circuit elements having moving parts using balls or pill-shaped disks

Definitions

  • the invention relates to a generic Device according to the preamble of the main claim.
  • Such a device is known from WO 00/00378.
  • These devices are hydraulically controlled Valves ansich known in which the control terminal from the first or second terminal through a Gap is sealed.
  • the invention is based on the object generic device according to the preamble of Main claim with a simple structure, however, for one To develop a variety of uses.
  • valve Device With the inventively designed as a valve Device is added in a surprising way at the same time simple structure at the same time any Leakage prevented. As a result, this stands known valve a variety of Possibilities open, because it is at the same time robust due to its simple construction.
  • the Valve for tilting cabs used by trucks whose tilting cylinder with a so-called circulation connection is provided.
  • the tilting cylinder Hydraulic cylinder in the area in front of the inner Stop of the piston one in the cylinder wall with a mouth opening, overridden by the piston Circulation connection provided, the piston rod side annular cylinder space over the mouth with the piston-side, the Connected pressure side forming cylinder chamber.
  • the designated in Fig. 1 in total with 10 valve has a control terminal 11 and a first one controlled terminal 12 and a second controlled connection 13 and in its end position with its one side arranged on a seat 14, formed as a ball 15 sealing body.
  • valve 10 In the valve 10 is a sealing body 15th completely surrounding the control terminal 11 on the one hand and the first and / or second connection 12 and 13 on the other hand sealing each other circumferential seal 16 arranged. Between this Seal 16 and the seat 14 opens the second Connection 13.
  • the seal 16 is related on the direction 17 of the stroke of the ball as the 15th trained sealing body in the area around their Equator arranged.
  • the seal 16 is in an inward direction arranged open circumferential groove 18 and can, as in the reproduced embodiment in two parts as at the bottom of the groove inserted O-ring 19 and an overlying sliding seal 20th be formed, wherein the groove 18 with inserted Seal 16 or 19 and 20 by a surface of the Insert body 23 and / or by a surface of the Housing 21 is limited.
  • the sealing body 15 can in Towards his one (in Figs. 1 and 2 drawn) end position with the force of a spring 22nd (Fig. 1) be charged.
  • the valve 10 is shown as a switching symbol in FIG. 3 shown schematically.
  • the spring 22 and the Control terminal 11 and the first terminal 12th and the second terminal 13 are designated.
  • Fig. 4 shows a wiring of a Hydraulic cylinder 30, preferably tilting cylinder for the cabs of trucks, with one a piston rod 31 having piston 32 and one shortly before the initial position of the piston 32 in the Cylinder wall opening with a mouth 33, from the Piston overflowable circulation connection 34 is provided is that the piston rod side annular space Cylinder space 35 via the mouth 33 with the piston-side, the pressure side forming cylinder space 36 connects.
  • the circulation connection 34 is a to whose mouth 33 toward closing check valve 37th intended.
  • the piston rod side cylinder chamber 35 is with an annulus lead 38 and the piston-side cylinder chamber 36 with a Piston room connection line 39 is provided.
  • a first Valve 10a Parallel to the check valve 37 is a first Valve 10a, as described in FIGS. 1 to 3 is connected so that the control terminal 11A on the mouth 33 of the circulation connection 34 is connected is and the first terminal 12A to the Piston port lead 39.
  • the second port 13A is with the extension of the piston 32 to the of the pump (not shown) coming as Supply line A serving line connected.
  • This unlockable check valve 40 is of a Control valve 10 B via an unlocking pin 43 controlled releasably, on the sealing body 15B loosely.
  • the control valve 10B is with his Control terminal 11 B to the annulus port 38th as well as the extension of the piston 32 to the for Tank leading, serving as return line B line connected.
  • the Embodiment of this control valve 10B the valve be formed according to FIG. 1, wherein between its first terminal 12B and the piston-side cylinder chamber 36 and the Piston room connection line 39 the controlled Check valve 40 arranged and the second Terminal 36 does not exist in this case, is locked.
  • Hydraulic fluid from the first port 12A to the second terminal 13A and from there to the line A (return line) can get, so that in Moment of crossing another line via the valve 10A will open, which ensures that the downward movement of the piston 32 of the cylinder 30 is not inhibited or slowed down and that Sufficiently reliable tilt back cab and can snap into its lock.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Check Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (9)

  1. Dispositif (10, 10A) comportant un raccord destiné à la commande (11, 11A), un premier raccord (12, 12A) et un deuxième raccord (13, 13A), et un corps d'étanchéité (15, 15A) disposé de manière étanche sur un siège (14, 14A) avec l'un de ses côtés, dans l'une de ses positions finales, moyennant quoi le premier raccord ainsi que le deuxième raccord (12, 13) débouchent sur différents côtés du siège (14, 14A) et sur l'un des côtés du corps d'étanchéité (15), tandis que le raccord destiné à la commande (11, 11A) débouche de l'autre côté du corps d'étanchéité (15, 15A), moyennant quoi, dans le dispositif configuré sous la forme d'une soupape (10), est disposé un joint d'étanchéité (16) périphérique, entourant complètement le corps d'étanchéité (15), rendant étanche d'une part le raccord destiné à la commande (11) et d'autre part le premier et / ou deuxième raccord (12 ou 13) l'un par rapport à l'autre, et moyennant quoi le deuxième raccord (13) débouche entre celui-ci et le siège (14),
       caractérisé en ce que le corps d'étanchéité (15, 15A) est configuré sous la forme d'une sphère (15), en ce que le joint d'étanchéité (16), en référence à la direction de l'élévation (17) de la sphère (15), est disposé dans la zone de sa ligne médiane, et en ce que le joint d'étanchéité est disposé dans une rainure (18) périphérique, ouverte vers l'intérieur.
  2. Dispositif selon la revendication 1, caractérisé en ce que le joint d'étanchéité (16) est configuré sous la forme d'un joint torique (19) placé sur la base de la rainure (18), et comportant un joint coulissant (20) disposé sur celui-ci (figure 2).
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la rainure (18) est délimitée d'une part par la surface d'un corps rapporté (18) et / ou par la surface d'un boítier (21), et en ce que, le cas échéant, le corps rapporté (18) peut être enfoncé dans le boítier (21).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps d'étanchéité (15) est sollicité, dans la direction de l'une de ses positions finales, par la force d'un ressort (22).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, comportant un vérin hydraulique (30) avec une liaison périphérique (34) débouchant par une ouverture (33) dans la paroi du vérin, dans la zone de la butée inférieure interne du piston (32) et pouvant dépasser le piston (32), laquelle liaison relie l'espace du vérin (35) formant un espace annulaire, du côté de la tige du piston, par l'intermédiaire de l'ouverture (33), avec l'espace du vérin du côté piston (36), formant le côté pression, caractérisé en ce que, dans la liaison périphérique (34), il est prévu un clapet anti-retour (37) se terminant par son ouverture (33) et en ce que la soupape (10A) est raccordée en parallèle à celui-ci, de telle sorte que sa conduite de commande (11A) est raccordée à l'ouverture (33) de la liaison périphérique (34) (figure 4).
  6. Dispositif selon la revendication 5, caractérisé en ce que le deuxième raccord (13A) de la soupape (10A) est relié à la conduite servant de conduite montante (A) provenant de la pompe lors du déploiement du piston (32), et le premier raccord (12A) de la soupape (10A) est raccordé à l'espace de vérin du côté piston (36) par l'intermédiaire d'une conduite de raccordement à l'espace du piston (39).
  7. Dispositif selon l'une quelconque des revendications 5 ou 6, caractérisé en ce que, à l'espace de vérin du côté piston (36), est raccordé un clapet anti-retour (40) s'ouvrant vers celui-ci, pouvant être débloqué, dont l'autre raccord (41) est relié à la conduite servant de conduite montante (A) lors du déploiement du piston.
  8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce que le clapet anti-retour (40) est commandé de manière à pouvoir être débloqué par une soupape de commande (10B), par l'intermédiaire d'une goupille de déblocage (43), et en ce que la soupape de commande (10B) est raccordée, avec sa conduite de commande (11B), à la conduite servant de conduite de retour (B) menant au réservoir lors du déploiement du piston.
  9. Dispositif selon la revendication 8, caractérisé en ce que la soupape de commande (10B) est également configurée sous la forme d'une soupape (10), en ce que, entre celle-ci comportant son premier raccord (12b) et l'espace de vérin du côté piston (36), est disposé le clapet anti-retour (40) pouvant être débloqué, et le deuxième raccord de la soupape de commande est bloqué.
EP20010102268 2000-02-10 2001-01-31 Clapet anti-retour piloté Expired - Lifetime EP1124063B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10005771 2000-02-10
DE10005771 2000-02-10
DE10006510 2000-02-15
DE10006510A DE10006510B4 (de) 2000-02-10 2000-02-15 Ventil und Vorrichtung mit Ventil

Publications (3)

Publication Number Publication Date
EP1124063A2 EP1124063A2 (fr) 2001-08-16
EP1124063A3 EP1124063A3 (fr) 2003-12-17
EP1124063B1 true EP1124063B1 (fr) 2005-12-28

Family

ID=26004257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010102268 Expired - Lifetime EP1124063B1 (fr) 2000-02-10 2001-01-31 Clapet anti-retour piloté

Country Status (2)

Country Link
EP (1) EP1124063B1 (fr)
DE (1) DE50108496D1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516443A (en) * 1967-11-13 1970-06-23 Ingersoll Rand Co Pilot operated valve
DE2258853B2 (de) * 1972-12-01 1976-09-16 G.L. Rexroth Gmbh, 8770 Lohr Drei- oder mehrwegeventil in sitzbauweise
NL1009507C2 (nl) * 1998-06-26 2000-01-04 Applied Power Inc Hydraulische kantelinrichting voor het kantelen van een voertuigcabine en voertuig voorzien van een dergelijke kantelinrichting.

Also Published As

Publication number Publication date
EP1124063A3 (fr) 2003-12-17
EP1124063A2 (fr) 2001-08-16
DE50108496D1 (de) 2006-02-02

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