WO2002092155A1 - Automatic-lung regulator for compressed-air respiration apparatus - Google Patents
Automatic-lung regulator for compressed-air respiration apparatus Download PDFInfo
- Publication number
- WO2002092155A1 WO2002092155A1 PCT/DE2002/000920 DE0200920W WO02092155A1 WO 2002092155 A1 WO2002092155 A1 WO 2002092155A1 DE 0200920 W DE0200920 W DE 0200920W WO 02092155 A1 WO02092155 A1 WO 02092155A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- regulator
- shut
- regulator according
- spring
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B31/00—Containers or portable cabins for affording breathing protection with devices for reconditioning the breathing air or for ventilating, in particular those that are suitable for invalids or small children
Definitions
- the invention relates to a regulator for compressed air breathing apparatus, with a membrane loaded to achieve an overpressure by a compression spring and actuated by breathing to control a valve for the air supply and a shut-off lever for locking the membrane in a break in operation.
- Regulators of this type have been known for a long time. They are connected between the pressure reducing valve of a compressed air reservoir and the breathing mask of a user and are used to provide a certain amount of breathing air at a pressure suitable for the human organism.
- the valve for releasing the air supply from the pressure reducer into the regulator is actuated with the aid of a control membrane which is moved when the user inhales due to the negative pressure generated.
- a constant slight overpressure is created in the regulator.
- the known excess pressure is known - Regulators equipped with a manually operated locking mechanism, in which the control membrane counteracts against the spring force acting on this in its upper position.
- This locking mechanism consists of a locking lever pivotable about an axis of rotation, one end of which engages the membrane and holds it in the upper position, while the opposite end is locked in the groove of a leaf spring.
- the invention is therefore based on the object of designing the switching mechanism for blocking and releasing the air supply in a regulator of the type mentioned at the outset in such a way that it is easily released by the inhalation of the user, but the locking position is safe during an interruption in the event of mechanical vibrations is maintained.
- the object is achieved with a lung automat designed according to the features of patent claim 1.
- the basic idea of the invention consists, on the one hand, in the arrangement of a first spring element, which acts on the pivotable lever fastening molded body with little friction. This spring element is able to securely fix the shut-off lever to a stop during operation of the regulator, and thus does not prevent the membrane from moving freely.
- the lever mounting body is additionally locked behind a second spring element with the support of the first spring element.
- this second spring element can be moved to a limited extent in the longitudinal direction in such a way that it shakes the lever fastening molded body even more during inactivable vibrations of the regulator and fixes it even better.
- the second spring element is moved upwards again when inhaled through the molded body without noticeable resistance. Thereafter, the spring forces acting on the molded body of the first and second spring elements can be easily overcome by inhalation.
- the proposed switching mechanism ensures that the air supply is reliably blocked during breaks in operation, since the blocking lever in the blocking position cannot be released even by blows acting on the regulators. This prevents the unwanted outflow of air.
- the locking lever can be immediately brought back into the operating position by breathing in, since the second spring element can be easily moved by the molded body and then only minimal spring forces have to be overcome to finally release the locking lever are.
- the shut-off lever is also securely fixed by the first spring element.
- the first spring element is a leaf spring loaded in the longitudinal direction, which is supported with low friction on its narrow end faces in a groove of the lever fastening molded body and in a groove on a fixed part of the regulator.
- the second spring element (safety bracket) comprises a movably guided slide rail which has a detent spring element on the side of the shaped lever fastening body.
- the detent spring element consists of an approximately semicircular receiving part for covering the lever fastening molded body and a bevel for lifting the second spring element when switching into the locking position.
- a stop bracket is provided at the other end of the slide rail to limit the longitudinal movement of the second spring element (safety bracket) in both directions.
- the shaped lever attachment body has a rounded sliding surface in the locking area with the detent spring element in order to be able to move the second spring element easily by its rotational movement along the slope or in the receiving part.
- FIG. 1 to 5 show in a schematic representation the different switching positions of a switching mechanism for a positive pressure regulator.
- Fig. 1 shows the switching mechanism in the manually locked but unloaded position
- FIG. 2 shows the switching mechanism according to FIG. 1 in a position which is still blocked for air supply after a shock due to impact.
- Fig. 3 shows the switching mechanism after breathing in and during operation
- Fig. 4 shows the switching mechanism when switching off by manual operation
- the switching mechanism comprises a pivotably mounted shut-off lever 1 which, in the upper position, for example shown in FIG. 1, has a stop for an overpressure spring (not shown) which is under constant action, with a formed by the breathing membrane (not shown) connected membrane plate 2.
- This membrane plate 2 is connected via a lever system (not shown) to a closing mechanism for a valve 3, via which the air supply from a compressed air reservoir with a pressure reducer (not shown) is released or blocked.
- the shut-off lever 1 is constantly in the lower position shown in FIG. 3 and is resiliently held under the action of a leaf spring 4 at a stop formed by the valve 3.
- the membrane plate 2 can move downward (in the direction of the shut-off lever 1 held at the valve stop) under the effect of the negative pressure generated with each breath. After each breath, the membrane plate 2 connected to the membrane is pushed up again and the valve 3 is closed, so that the desired overpressure in the regulator is maintained by the overpressure spring acting on the membrane plate 2 from above.
- the shut-off lever 1 is connected to a shaped lever attachment body 5 which is pivotably mounted in a swivel joint 6.
- the shaped body 5, in cooperation with the locking spring 4, serves to hold the shut-off lever 1 either in the lower position, ie in the operating position, or to fix it in the upper position, in which the air supply is completely blocked.
- the leaf spring 4 has a central bulge 4a and is held and supported under spring tension on its two front edges in a wedge-shaped groove 7 of the lever fastening molded body 5 or in a wedge-shaped groove 8 of a guide element 9.
- This design and arrangement of the locking spring 4 ensures a low-friction movement of the shut-off lever 1, so that when the regulator is put into operation from the locked position only insignificant Opposing forces are to be overcome and the shut-off lever 1 is moved into the under position, ie the operating position, by just breathing on.
- the shutdown of the regulator ie the interruption of any air supply, is achieved with the aid of a push button attached to the regulator housing, which is indicated by the arrow F in FIG. 4.
- the pushbutton is actuated, the molded body 5 is brought into the substantially vertical position shown in FIG. 1 and held in this position on the one hand by the leaf spring 4 and additionally by the safety holder 10.
- a safety bracket 10 is provided in addition to the leaf spring 4.
- This safety bracket 10 comprises a slide rail 11, a stop bracket 12 provided at the lower end of the slide rail 11 and a latching spring element 13 angled at the upper end of the slide rail 11.
- the slide rail 11 is guided in the guide element 9 at a distance from the swivel joint 6 of the lever fastening molded body 5 and Movable according to the arrow A in accordance with the distance between the guide element 9 and a stop 14 formed by the housing of the regulator.
- the detent spring element 13 is formed by a receptacle part 13a adjoining the slide rail 11, which is curved in a semi-circular manner, and a bevel 13b projecting obliquely upward from its end.
- the shut-off lever 1 is thus fixed in the locked position both by the leaf spring 4 and by the safety bracket 10.
- the shut-off lever 1 cannot also adjust itself automatically as a result of a shock caused by impact, since in this case the safety holder 10 slides down to the stop due to its own weight and the lever fastening molded body 5 is locked even more securely in the receiving part 13a.
- the regulator can be put back into operation simply by breathing in, since, due to the pressure acting on the diaphragm plate 2, the safety bracket 10 can be easily pushed against the guide element 9 until the stop bracket 12 stops shifted above and then the spring force of the detent spring element 13 and the leaf spring 4 is overcome.
- the safe shut-off of the air supply is ensured on the one hand, so that no air can be lost from the compressed air reservoir. Nevertheless, an immediate restart of the regulator connected to the breathing apparatus is possible, since with the proposed switching mechanism the forces acting to hold the shut-off lever can be overcome by just breathing on. NEN. In the operating position, the shut-off lever 1 is also held securely in a lower stop position.
- the shut-off lever 1 has been moved upward into the blocking position according to arrow B and acts (arrow C) on the membrane plate 2. The air supply is thus blocked.
- the safety bracket 10 is in the upper position delimited by the stop bracket 12.
- Fig. 3 shows the switching mechanism in the operating position, in which the shut-off lever 1 is held firmly by means of the leaf spring 4 against a stop (not shown) and the membrane plate 2 actuated by inhalation for opening and closing the valve 3 for the air supply to Users can freely move up and down.
- Fig. 4 finally shows the shutdown of the regulator.
- the shut-off lever (1) is moved in the direction of arrow B by means of the pushbutton (arrow F) and the safety holder 10 is moved along the slope by the movement of the lever fastening molded body 5
- Fig. 5 shows the start-up of the regulator, in which the safety bracket 10 is raised to the stop on the guide element 5 and then by the breathing in of the user and the resulting pressure of the membrane plate 2 according to arrow C on the locking lever 1 moving in the direction of arrow B. the spring force of the detent spring element 13 and the leaf spring 4 can be easily overcome.
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02719678A EP1387708B9 (en) | 2001-05-14 | 2002-03-12 | Automatic-lung regulator for compressed-air respiration apparatus |
AU2002250818A AU2002250818B2 (en) | 2001-05-14 | 2002-03-12 | Automatic-lung regulator for compressed-air respiration apparatus |
DE50209289T DE50209289D1 (en) | 2001-05-14 | 2002-03-12 | LUNG CARTRIDGE FOR PRESSURE AIR BREEDING DEVICES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10125076.2 | 2001-05-14 | ||
DE2001125076 DE10125076C1 (en) | 2001-05-14 | 2001-05-14 | Automatic lung, for pressurized air respiration device, has blocking lever for securing membrane in operating pause provided with safety restraint preventing release by mechanical shock |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002092155A1 true WO2002092155A1 (en) | 2002-11-21 |
Family
ID=7685817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/000920 WO2002092155A1 (en) | 2001-05-14 | 2002-03-12 | Automatic-lung regulator for compressed-air respiration apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1387708B9 (en) |
AU (1) | AU2002250818B2 (en) |
DE (2) | DE10125076C1 (en) |
ES (1) | ES2278910T3 (en) |
WO (1) | WO2002092155A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10413729B2 (en) | 2009-04-22 | 2019-09-17 | Nevro Corp. | Devices for controlling high frequency spinal cord modulation for inhibiting pain, and associated systems and methods, including simplified contact selection |
CN114602142A (en) * | 2022-02-25 | 2022-06-10 | 罗圣贵 | Be used for patient's pulmonary function rehabilitation training device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019108790B4 (en) * | 2019-04-03 | 2020-11-19 | BartelsRieger Atemschutztechnik GmbH | Demand regulator, in particular for a breathing apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284075A (en) * | 1978-06-17 | 1981-08-18 | Alan Krasberg | Diving headgear for use in return-line diving systems |
FR2535612A1 (en) * | 1982-11-05 | 1984-05-11 | Lejeune Seitz Ameline Labo | Improved breathing valve |
US4592384A (en) * | 1983-05-19 | 1986-06-03 | Sekur S.P.A. | Commutator feeding device for a demand valve intended for introducing breathable air into a compressed air breathing apparatus |
EP0375939A2 (en) * | 1988-12-29 | 1990-07-04 | HTM SPORT S.p.A. | Automatic regulator for breathing apparatus |
-
2001
- 2001-05-14 DE DE2001125076 patent/DE10125076C1/en not_active Expired - Lifetime
-
2002
- 2002-03-12 ES ES02719678T patent/ES2278910T3/en not_active Expired - Lifetime
- 2002-03-12 DE DE50209289T patent/DE50209289D1/en not_active Expired - Fee Related
- 2002-03-12 AU AU2002250818A patent/AU2002250818B2/en not_active Ceased
- 2002-03-12 WO PCT/DE2002/000920 patent/WO2002092155A1/en active IP Right Grant
- 2002-03-12 EP EP02719678A patent/EP1387708B9/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284075A (en) * | 1978-06-17 | 1981-08-18 | Alan Krasberg | Diving headgear for use in return-line diving systems |
FR2535612A1 (en) * | 1982-11-05 | 1984-05-11 | Lejeune Seitz Ameline Labo | Improved breathing valve |
US4592384A (en) * | 1983-05-19 | 1986-06-03 | Sekur S.P.A. | Commutator feeding device for a demand valve intended for introducing breathable air into a compressed air breathing apparatus |
EP0375939A2 (en) * | 1988-12-29 | 1990-07-04 | HTM SPORT S.p.A. | Automatic regulator for breathing apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10413729B2 (en) | 2009-04-22 | 2019-09-17 | Nevro Corp. | Devices for controlling high frequency spinal cord modulation for inhibiting pain, and associated systems and methods, including simplified contact selection |
CN114602142A (en) * | 2022-02-25 | 2022-06-10 | 罗圣贵 | Be used for patient's pulmonary function rehabilitation training device |
CN114602142B (en) * | 2022-02-25 | 2023-10-27 | 江苏康康同学科技有限公司 | Be used for patient's pulmonary function rehabilitation training device |
Also Published As
Publication number | Publication date |
---|---|
DE50209289D1 (en) | 2007-03-08 |
EP1387708B9 (en) | 2007-10-24 |
ES2278910T3 (en) | 2007-08-16 |
EP1387708B1 (en) | 2007-01-17 |
AU2002250818B2 (en) | 2005-06-09 |
EP1387708A1 (en) | 2004-02-11 |
DE10125076C1 (en) | 2002-05-23 |
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