Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C13/00—Details of vessels or of the filling or discharging of vessels
  • F17C13/06—Closures, e.g. cap, breakable member
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
  • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
  • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
  • F17C2205/0308—Protective caps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2209/00—Vessel construction, in particular methods of manufacturing
  • F17C2209/22—Assembling processes
  • F17C2209/228—Assembling processes by screws, bolts or rivets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
  • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
  • F17C2223/0107—Single phase
  • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
  • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
  • F17C2223/035—High pressure (>10 bar)
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
  • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
  • F17C2223/036—Very high pressure (>80 bar)

Definitions

• the invention relates to a cap for compressed gas cylinders.
• EP 0 629 812 A1 describes a plastic cap for gas bottles with a lower part for attachment to the gas bottle and an upper part for protecting the valve, the lower part comprising a lateral projection with a curvature as a suspension device.
• DE 44 40 298 A1 describes a protective valve collar for gas bottles which can be placed on the head section of a gas bottle and detachably attached to the valve sleeve.
• EP 0 447 315 B1 describes a labeling and protective arrangement for the valve of a fluid container, a protective cap being attached to the handwheel of the valve.
• WO 91/04197 describes a bell-shaped protective cap for compressed gas cylinders made of metal, which has an opening with a screw thread on the base side and a large side opening with an integrated handle and is open at the head.
• the known protective devices or protective caps cannot be attached to the compressed gas bottle without first having to remove the pressure reducer from the cylinder valve. It has therefore not previously been possible to attach the protective device to an installed compressed gas cylinder.
• the object of the invention is therefore to provide a protective device for compressed gas cylinders, the one connected to the compressed gas cylinder Protective device effectively protects the cylinder valve if the compressed gas cylinder falls over.
• the protective device should form a unit with the compressed gas bottle if possible.
• the protective device should be able to be attached and removed from the compressed gas cylinder with little effort and should not impair the functionality of the cylinder valve.
• a cap for compressed gas cylinders which has two interconnected half-shells, an internal cavity for receiving the cylinder valve, at least one lateral recess and a recess on the head side and a device for attachment to the compressed gas cylinder, the cap being attached to the the cylinder valve equipped compressed gas bottle can be mounted without having to remove a pressure reducer or to disconnect connected lines.
• Pressurized gas cylinders are pressurized containers like normal pressurized gas bottles, gas cartridges or pressure cans.
• the cylinder valve is used for gas extraction and for filling the compressed gas bottle, the cylinder valve generally contains an integrated pressure reducer.
• the inner cavity of the cap is advantageously dimensioned so that the space for receiving the cylinder valve with a pressure reducer is sufficient.
• the cap contains, for example, two side cutouts for emptying and filling the compressed gas bottle when the cap is in place.
• the side cutouts are preferably of the same or similar size and are opposite.
• the cap can also have four lateral cutouts, which are advantageously arranged symmetrically to one another. The size of the side recess must ensure free connection to the valve when the protective cap is attached.
• the size of the recess in the head area on the top of the cap is designed so that the handwheel of the cylinder valve is accessible and can be actuated when the cap is in place.
• the cap is preferably dimensioned such that the cap fits on compressed gas cylinders of different sizes, for example on compressed gas cylinders with a volume of 2, 5, 10 or 20 liters.
• the device for fastening is attached in the bottom region of the cap.
• the fastening device is, for example, a thread or is formed by protruding designs, such as grooves or teeth, which engage in the external thread on the bottle neck of a compressed gas bottle.
• the fastening device can also be designed as a bayonet lock, clamp lock or snap lock, it being possible for an adapter piece to be placed on the bottle thread. Even if the cap is fastened with a thread-like fastening device, an adapter piece for the compressed gas bottle can be advantageous, for. B. when attaching the cap to a compressed gas bottle with a smaller bottle thread.
• the fastener may also include a strap or strap.
• the tensioning strap is guided, for example, around the bottom of the compressed gas bottle and is releasably attached to the cap.
• Eyelets, bands or tabs on the cap can also be used as the fastening device, corresponding counterparts for fastening being arranged on the compressed gas bottle.
• a fork can also serve as a fastening device, which is guided through holes in the cap and engages with the bottle valve.
• the cap can also have a continuous bead, rolled edge or collar on the base side of the cap, which serve as an attachment for a connecting element to the gas bottle.
• the connecting element can consist of a metal or plastic, for example a shrink film tube.
• the correspondingly equipped cap can also be attached to the gas bottle in a flange-like manner if the gas bottle has a corresponding counterpart.
• the cap preferably contains an anti-rotation device, a roll protection device, a carrying device and / or a hanging device.
• the anti-rotation lock of the cap serves to fix the cap on the compressed gas bottle so that the cap cannot be rotated relative to the compressed gas bottle.
• the anti-rotation device is, for example, a rectangular recess in the interior of the cap for receiving the square, which is usually present, on the cylinder valve.
• the roll lock is one or more formations on the cap that protrude beyond the gas bottle and prevent the bottle from lying down from rolling.
• Roll protection is advantageously installed in the base or base area of the cap, that is to say on the part of the cap closest to the compressed gas bottle.
• the roll lock is a component of the cap, which protrudes beyond the compressed gas bottle cross-section.
• the roll lock is, for example, an angular bead, one or more angular projections, webs or pins, one or more webs, an angular base or an angular profile in the base area.
• the corners of the cap formations are aligned with the base of the cap, i. H. in the plane of the base area or parallel to it.
• the carrying device consists, for example, of one or more handles.
• the handle can be a bracket, a handle bar, a handle plate or a recessed grip.
• the handle is preferably integrated in the cap and is preferably movable, in particular foldable.
• the foldable handle is rotatably mounted in one of the three spatial directions.
• the handle can be folded out from the bottom upwards by a hinge in the head area, for example.
• the handle can also be designed in the head region as a part that can be swung out laterally.
• the handle can also be designed as a sliding part, for. B. as a pull-out handle in the direction of the longitudinal axis of the cap or perpendicular to it.
• the movable carrying device can advantageously be locked.
• the locking mechanism can be, for example, a device for engaging (e.g. a recess on the carrying device or cap, where a spring-mounted part (e.g. ball with compression spring, spring arm made of a flexible plastic with pin or hemispherical elevation) engages Locking can also be done by a clamping device.
• the suspension device can be, for example, a hook or a hook-shaped part.
• the suspension device is preferably movable, in particular foldable.
• the suspension device can be constructed analogously to the carrying device, it can also be lockable.
• the cap may also include devices that allow attachment of a hanger, e.g. B. a recess in which a hook can reach, such as threaded holes, webs or knobs.
• a hanger e.g. B. a recess in which a hook can reach, such as threaded holes, webs or knobs.
• the cap is preferably cylindrical.
• Base area can be round, elliptical, square or polygonal, and should have a diameter that does not differ significantly from the diameter of the gas bottle.
• the diameter of the cap is in the range from gas bottle diameter to 10 percent above. It is advantageous if the cap is flush with the gas bottle and has a largely symmetrical shape.
• the Cap size may vary. The minimum size of the cap results from the fact that the cap can be put over the bottle valve.
• the cap is advantageously formed from two interconnected half-shells.
• the separation of the half-shells preferably takes place in a surface which contains the longitudinal axis of the cap.
• the half-shells are preferably the same.
• the half-shells can be detachably connected, for example, by screwing, by a plug connection, by a combined plug / screw connection, by one or more tensioning straps or rings.
• the half-shells can contain, for example, dowel pins or tongue and groove (tongue or groove elements) as aids for a plug connection.
• the assembled half shells can also be connected with a tape or strap or with a shrink wrap.
• the cap can have additional cavities that are used to hold parts or information documents (e.g. chamber for accessories).
• the chamber is preferably located in the head region of the cap (for example on the top as an annular cavity which can be closed with an annular lid).
• the chamber is advantageously accessible from the outside.
• the cap can also contain a spring clip (also several spring clips) to which an information sheet can be attached.
• the spring clip can be made of plastic or metal.
• the spring clip is shaped, for example, in the form of a ballpoint pen clip and is, for. B. in the case of plastic as a material molded onto a half-shell element or is attached, for example in the case of metal, analogously to ballpoint pens by means of a plug connection, or is extrusion-coated or cast in during the production of a plastic half-shell.
• the cap has the following features:
• the cap or parts of the cap are preferably made of a thermoplastic, e.g. B. polyoxymethylene, polyethylene, polypropylene, polystyrene, PVC, polyester, polyamide, liquid crystalline polymer (LCP).
• the thermoplastic can also be a blend.
• the thermoplastic materials are advantageously fiber-reinforced (e.g. glass fiber, mineral fiber, carbon fiber).
• a suitable plastic is polyamide with 30 percent by weight glass fiber.
• the plastic can be foamed.
• the cap or parts of the cap can be produced by conventional thermal plastic processing methods such as extrusion or injection molding.
• a thin-walled version of the protective cap is preferred.
• the cap is preferably stackable.
• the cap is designed such that the underside of the cap can be placed on the head of the cap, for example by conical flattening in the head area. The nature of the cap is explained below by way of example with reference to FIGS. 1 to 4. It is a cap that is formed from two identical half-shells. The half shells are connected to each other by screw connections.
• Fig. 1 shows a side view of a half-shell with a partial section on the right side.
• the side recess is located in the middle of the half-shell shown.
• the threaded neck 2 in the lower region of the half-shell is half of an internal thread that fits on the external thread of the compressed gas bottle.
• the half-shell is thin-walled (wall thickness in the range of 1 to 5 mm, preferably 2 to 3 mm).
• a half shell contains two holes (3) for attaching a foldable handle and a foldable hook.
• the half-shell has an outer profile with protruding webs (4) which prevent a lying compressed gas cylinder from rolling.
• the collar (6) is angular and also serves as roll protection. The collar protrudes beyond the compressed gas bottle.
• Fig. 2 shows the holes (5) made in the half-shell through which screws are passed. Two half-shells are connected to each other by a screw connection. A half shell contains four of the holes (5).
• Fig. 3 shows the cross section of the half-shell in the lower and upper area.
• Fig. 4 shows the assembled cap from two half-shells (1) and a handle (7) and a hook (8).
• Table 1 Characteristic dimensions of a round cap (example for 51 and 101 compressed gas cylinders)

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Magnetic Resonance Imaging Apparatus (AREA)
• Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
• Pens And Brushes (AREA)
• Catching Or Destruction (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7812497

Family Applications (1)

Country Status (7)

Cited By (8)

Families Citing this family (16)

Family Cites Families (7)

• 1996
  • 1996-11-22 DE DE19648440A patent/DE19648440C1/de not_active Expired - Fee Related
• 1997
  • 1997-10-14 TW TW086115067A patent/TW350016B/zh active
  • 1997-10-15 ZA ZA9709234A patent/ZA979234B/xx unknown
  • 1997-10-16 AT AT97945843T patent/ATE210796T1/de active
  • 1997-10-16 DE DE59705811T patent/DE59705811D1/de not_active Expired - Lifetime
  • 1997-10-16 EP EP97945843A patent/EP0939875B1/fr not_active Expired - Lifetime
  • 1997-10-16 ES ES97945843T patent/ES2169879T3/es not_active Expired - Lifetime
  • 1997-10-16 WO PCT/EP1997/005699 patent/WO1998023895A1/fr not_active Ceased

Non-Patent Citations (1)

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