DD246030A1 - Loosable fuse for connector connections - Google Patents

Loosable fuse for connector connections Download PDF

Info

Publication number
DD246030A1
DD246030A1 DD86287142A DD28714286A DD246030A1 DD 246030 A1 DD246030 A1 DD 246030A1 DD 86287142 A DD86287142 A DD 86287142A DD 28714286 A DD28714286 A DD 28714286A DD 246030 A1 DD246030 A1 DD 246030A1
Authority
DD
German Democratic Republic
Prior art keywords
characterized
conical
position
fuse
locking tongues
Prior art date
Application number
DD86287142A
Other languages
German (de)
Inventor
Klaus Jehmlich
Original Assignee
Medizin Labortechnik Veb K
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 Medizin Labortechnik Veb K filed Critical Medizin Labortechnik Veb K
Priority to DD86287142A priority Critical patent/DD246030A1/en
Publication of DD246030A1 publication Critical patent/DD246030A1/en

Links

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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/10Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
    • F16L37/101Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part in which the coupling is coaxial with the pipe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816Joints or connectors
    • 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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/133Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using flexible hooks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875Connecting tubes

Abstract

The invention relates to a releasable fuse for conical joints with axial clearance compensation. The aim and task is to eliminate without usual ring seal caused by Fertigungsmaengel, pollution and wear caused leaks. According to the invention, this is achieved with a jaw body, which has an axial and rotatable movement possibility with respect to the female cone and is designed as a closed ring with locking tongues arranged in the interior, which via wedging planes move into a position "locked" (secured cone lock or into a position "open"). The position "notches" is secured under constant axial spring pressure, with the compensation of possible fault tolerances.

Description

For this 1 page drawings

Field of application of the invention

The invention relates to a releasable fuse for conical joints with axial clearance compensation. These conical connections are used in medical tubing systems and in particular in the breathing circuit of inhalation anesthesia and ventilators.

Characteristic of the known technical solutions

According to ISO / DIS 5367 and TGL-RGW 1454 conical connections of nominal widths 15,22 and 30 with conicity of 1:40 and 1:20 are prescribed for conical connections in the breathing circuit of inhalation anesthesia and ventilators. In particular, the cone 1:40 with a pitch angle of 0 ° 43 '± 2.2' at the exhaustion of the tolerances or their exceeding or even after wearing the risk of possible loosening of the conical connection with it. Associated with this are life-threatening conditions for the respiratory patients which are to be prevented.

It is a backup against Diskonnektion for corrugated hoses on circular systems known, which consists of a latching, constructed on the quick coupling principle conical connection. In her wearing the female connector a sealing ring, which is pushed with the cone-cone union on the male connector. The holder is made by an elastic jaw member which engages with its claws in an annular groove behind the cone of the male connection part.

Of the claws each an equal number is arranged opposite each other. If the claw part is pressed radially offset by 90 ° to the claws, they spread and the conical connection can be solved.

In this conical connection with Diskonnektionssicherung all tolerances must be absorbed by the sealing ring. However, since this soon loses its elasticity through the necessary sterilization processes, leaking will occur after a relatively short time. There is also no way to eliminate this leak, because means for axial compensation are not available.

Object of the invention

The object of the invention is to eliminate the disadvantages and to provide a releasable fuse for conical joints whose tightness is not dependent on a ring seal and is secured by axial compensation.

Explanation of the essence of the invention

The invention has for its object to develop a releasable fuse for conical joints, which uses no elastic sealing element in accordance with international standards and eliminates all caused by manufacturing defects, contamination and wear leaks. In addition, the tight cone connection should be able to be opened cheaper even after the removal of the defect.

According to the invention the object is achieved with two connecting parts, one of which is provided with a female cone and the other with a male cone, by

A pawl body with axial and rotatable movement possibility in relation to the female cone,

- The formation of the claw body as a closed ring with arranged inside locking tongues,

- In the same number of locking tongues on the connecting part with the female cone over the circumference distributed wedging planes on which the locking tongues are mounted under prestress and

- A claw-shaped design of the free ends of the locking tongues, which are brought in response to the completed rotational movement of the jaw body either in an expanded position or engaged with their claws in a located on the connecting part with the male cone ring groove.

The fuse for conical connections according to the invention is further characterized by a arranged between the jaw body and the female connecting part compression spring with torsional behavior, one end of the spring locked against rotation on this connecting part and the other end of the spring is connected to the claw body. It is expedient to attach a spring end on the input side of the female cone on the inner edge portion of the wedging planes and to connect the other end of the spring with the guide part of the claw body.

Furthermore, located between the wedging planes two-sided stops, which form the boundaries for the rotational movement of the locking tongues, so that they occupy the locking position when investing on one side or the spread position when resting on the other side. An advantageous solution is still seen when there are four wedging planes and four stops arranged therebetween, so that the rotatability of the claw body is limited to 90 °. The advantages of the fuse according to the invention are to be seen in particular in the axial compensation of errors from manufacturing, wear and contamination, but also in a better maintenance freedom and easy to install design and the created Einlertungsmöglichkeit a torque for a favored loosening stuck conical joints.

embodiment

The invention will be described below by way of example with reference to the drawing, in which:

1 shows the schematic sectional view of a conical connection with a claw body in the locked position, FIG. 2 shows a view according to FIG. 1 in the unlocked state, FIG. 3 shows a section A from FIG. 1 and FIG. 4 shows a section B from FIG .2.

First, it should be noted that in the two Figs. 1 and 2 only one half of a positionally identical conical connection is recognizable, but very vividly show the fuse according to the invention in two offset by 90 ° positions. As can be seen Fig. 1, the inventively designed claw body 1 is a closed outer ring which has latching tongues 2 inside. It is axially displaceable by a compression spring 3 with Torsionsverhalten and rotatably connected to a connecting part 4 with female cone 5, in which the male cone 6 of a connecting part 7 is located. The compression spring 3 is mounted with bent spring ends 8.9 on the one hand on the jaw body 1, on the other hand, on the female connecting part 4 so that the jaw body 1 is to the connecting part 4 in the direction of rotation and axially biased. Furthermore, the inlet part of the female cone 5, the connecting part 4 is provided with wedge planes 10 extending on the circumference, on each of which a latching tongue 2 is mounted under bias. In an expedient embodiment, the one spring end 8 has been attached to the inner edge part 11 of these wedging planes 10, while the other spring end 9 is connected to a guide part 12 of the jaw body 1. In each case between the beginning and end of the wedging planes 10, a two-sided stop 13 is arranged, of which so as many as four stops 13 are provided at preferably four wedging planes. These stops 13 form the boundaries for the rotational movement of the locking tongues 2, the fixed according to Fig. 1 and 3 on the one stop side 14 in the position "notches" and according to Figures 2 and 4 on the other stop side 15 in the "open" position are. In this fuse for conical joints according to the invention, the free ends of the locking tongues 2 are provided with jaws 16, depending on the successful rotation of the jaw body 1 either in a lifted off the male cone 6 position or in a position behind him position, conveniently in an annular groove 17 are located. Now, if a conical connection is made, then slide due to the torsional behavior of the compression spring 3 on the stop side 14 locking tongues 2 in the axial direction of the two connecting parts 4,7 on the wedging planes 10 and thus the jaws 16 in the same direction on the male cone 6. Dabei First, the locking tongues 2 spread with increasing adaptation of the two cones 5, 6, until finally the male cone 6 comes to rest on the female cone 5. Now, the claw body 1 is further moved axially against the effectiveness of the compression spring 3 until the claws 16 of the locking tongues 2 engage in the annular groove 17. With the achieved position "detents" a conical connection is secured under constant axial spring pressure, with compensation for possible fault tolerances.

To release the conical joint of the jaw body 1, which may also have handles or may be provided with a corrugation, seen from the hose end 18 is turned to the left. As a result, the locking tongues 2 move on the wedging planes 10 against the torsional force of the compression spring 3 to the stop side 15 and assume a spread position. With the reached position "open", the conical connection can be released.

If this conical connection is relatively fixed, then allow the stops 13 a transmission of the rotational movement of the claw body 1 on the connecting part 4, which favors the release of the female cone 5 from the male cone 6. After releasing the conical connection of the jaw body 1 returns to G around the effective spring force component independently in the starting position "notches" back.

The claw-shaped design of the free ends of the locking tongues is also designed to limit the axial backward movement of the jaw body 1 caused by the compression spring 3. Therefore, the jaws 16 are at least so large that the. Detection according to the invention is held by its stop on the edge portion 11 of the wedging planes 10 in a predetermined end position.

Claims (7)

  1. Invention claim:
    1. Detachable fuse for conical joints with a female cone and a male cone, characterized ~ in that it comprises a claw body (1) with respect to the female cone (5) axial and rotatable movement possibility, which is formed as a closed ring and inside with R 'ments (2) is provided, .daß that on the female connecting part (4) of the respective conical joint extending wedge planes (10) are arranged, on each of which a latching tongue (2) rests under low bias and that the locking tongues (2) claw-shaped their free ends and depending on the position of the jaw body (1) either spread or with their claws (16) in a male connection part (7) located annular groove (17) are engaged.
  2. 2. Detachable fuse for conical joints according to item!, Characterized in that between the claw body (1) and. the female connection part (4) a compression spring (3) is arranged with torsional behavior, one end of the spring (8) secured against rotation on this connecting part (4) and the other spring end (9) with the jaw body (1) is connected, so that this Connecting part (4) in the direction of rotation and axially biased.
  3. 3. Detachable fuse for conical joints according to item 2, characterized in that the one spring end (8) on the input side of the female cone (5) on the inner edge part (11) of the wedging planes (10) attached and the other spring end (9) with the guide part ( 12) of the claw body (1) is connected.
  4. 4. Detachable fuse for conical joints according to item 1 and 2, characterized in that each between the beginning and end of the wedging planes (10) two-sided stops (13) are arranged, form the stop sides (14,15) rotational movement limits for the locking tongues (2).
  5. 5. Detachable fuse for conical joints according to item 4, characterized in that four wedging planes (10) and four stops (13) arranged therebetween are present, so that the rotatability of the claw body (1) is limited to 90 °.
  6. 6. Detachable fuse for conical joints according to item 4 and 5, characterized in that the locking tongues (2) on one stop side (14) in the position "notches" and on the other stop side (15) are fixed in the "open" position ,
  7. 7. Detachable fuse for conical joints according to items 1 to 6, characterized in that the sum of all by edition of the locking tongues (2) on the wedging planes (10) effective frictional forces against the torsional force of the compression spring (3) is smaller and before an adjustment of the two Taper (5,6) the latching tongues (2) due to the torsional behavior of the compression spring (2) always abut against the stop sides (14) of the stops (13).
DD86287142A 1986-02-19 1986-02-19 Loosable fuse for connector connections DD246030A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DD86287142A DD246030A1 (en) 1986-02-19 1986-02-19 Loosable fuse for connector connections

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DD86287142A DD246030A1 (en) 1986-02-19 1986-02-19 Loosable fuse for connector connections
DE19863640955 DE3640955A1 (en) 1986-02-19 1986-11-29 Releasable securing for cone connections
SE8605125A SE464335B (en) 1986-02-19 1986-12-01 Loesgoerbar laasanordning Foer cone clutches
GB8702913A GB2186652B (en) 1986-02-19 1987-02-10 Releasable locking arrangement for taper connections

Publications (1)

Publication Number Publication Date
DD246030A1 true DD246030A1 (en) 1987-05-27

Family

ID=5576610

Family Applications (1)

Application Number Title Priority Date Filing Date
DD86287142A DD246030A1 (en) 1986-02-19 1986-02-19 Loosable fuse for connector connections

Country Status (4)

Country Link
DD (1) DD246030A1 (en)
DE (1) DE3640955A1 (en)
GB (1) GB2186652B (en)
SE (1) SE464335B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628821B1 (en) * 1988-03-21 1990-07-13 Peugeot Connecting device
IT1220749B (en) * 1988-05-04 1990-06-21 Uniflex Utilime Spa A quick coupling for the releasable pipe junction
FR2685755B1 (en) * 1991-12-26 1995-02-24 Legris Sa
ES2092076T3 (en) * 1991-12-26 1996-11-16 Legris Sa Splicing device for components of a fluid distribution network, and network components for implementation.
CA2194598A1 (en) 1996-08-12 1998-02-13 Norris R. Long Lpn canister connector for combustion appliance
US5868126A (en) * 1996-08-12 1999-02-09 The Coleman Company, Inc. LPG canister connector for combustion appliance
US6953354B2 (en) * 2002-06-05 2005-10-11 Fisher & Paykel Healthcare Limited Connector for breathing conduits
US9283344B2 (en) * 2012-01-03 2016-03-15 Carefusion Corporation Apparatus, system, and method of fluid delivery connection
WO2014129912A1 (en) * 2013-02-20 2014-08-28 Fisher & Paykel Healthcare Limited Connector for multiple sized connections
EP3370814A4 (en) * 2015-11-06 2019-07-03 Fisher&Paykel Healthcare Limited Apparatus for use in a respiratory support system

Also Published As

Publication number Publication date
GB8702913D0 (en) 1987-03-18
SE8605125D0 (en) 1986-12-01
GB2186652A (en) 1987-08-19
SE464335B (en) 1991-04-15
DE3640955A1 (en) 1987-08-20
SE8605125L (en) 1987-08-20
GB2186652B (en) 1989-11-01

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