EP3193072B1 - Universalschutzvorrichtung für gasflasche - Google Patents

Universalschutzvorrichtung für gasflasche Download PDF

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Publication number
EP3193072B1
EP3193072B1 EP16305024.8A EP16305024A EP3193072B1 EP 3193072 B1 EP3193072 B1 EP 3193072B1 EP 16305024 A EP16305024 A EP 16305024A EP 3193072 B1 EP3193072 B1 EP 3193072B1
Authority
EP
European Patent Office
Prior art keywords
ring
gas cylinder
thread
seat
annular shell
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.)
Active
Application number
EP16305024.8A
Other languages
English (en)
French (fr)
Other versions
EP3193072A1 (de
Inventor
Emmanuelle PERDRIX
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.)
Rovip SA
Original Assignee
Rovip SA
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 Rovip SA filed Critical Rovip SA
Priority to EP16305024.8A priority Critical patent/EP3193072B1/de
Publication of EP3193072A1 publication Critical patent/EP3193072A1/de
Application granted granted Critical
Publication of EP3193072B1 publication Critical patent/EP3193072B1/de
Active legal-status Critical Current
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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
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0165—Details of mounting arrangements for transport with handgrip
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0745—Gas bottles

Definitions

  • the present invention relates to the field of protective devices for protecting a gas cylinder valve for liquefied, dissolved or compressed gases. More specifically, it relates to a gas bottle cap.
  • the cylinder valve When transporting or handling gas cylinders, the cylinder valve may be subject to shock and damage. To avoid this, the gas cylinders are equipped with a safety device called protective cap.
  • the protective caps In order to allow access by the user to the cylinder valve, the protective caps must be open at the top.
  • the protective caps must also comply with ISO 11117, according to which the upper end of the protective cap must protrude by a minimum height from the tap to the open position, in order to prevent any shock likely to damage it.
  • the bottles are filled in filling plants by means of automata.
  • PLCs require a minimum space to operate around the cylinder valve.
  • the taps have a lateral orifice allowing the filling of the bottles.
  • the filling is done by means of a cane.
  • the hat must have a lateral opening allowing access to the filling rod.
  • the recent improvements of the protective caps aim at reducing the weight of the protective caps for example by using plastic materials or by modifying the structure of the protective caps.
  • the French patent FR3013101 A1 of the present Applicant discloses a protective cap 200 made by molding a polymeric resin so as to reduce the weight of the cap while complying with the ISO 11117 standard.
  • This protective cap 200 is illustrated in FIG. figure 1 of the state of the art in a mounting position on a cylindrical neck 22 of a gas cylinder 21. It corresponds to the preamble of claim 1.
  • the gas bottle 21 consists of a pressurized container shaped with a generally domed convex upper portion having a cylindrical neck 22 projecting and in a central position. This neck 22 has a thread 23 on its lateral periphery.
  • the gas bottle 21 also comprises a valve 24 secured in a central position on the upper face of the cylindrical neck 22. This valve 24 usually comprises an opening and closing wheel 25 in the upper part and a lateral orifice 26 for the gas outlet and filling the gas bottle 21.
  • the side port 26 extends horizontally, perpendicularly to the vertical axis of the valve body 24.
  • the protective cap 200 is intended in particular to protect the valve 24 to prevent it from being damaged or torn in case of a fall or shock, and to facilitate the handling of the gas bottle 21.
  • the protective cap 200 comprises three separate parts, namely a ring 300, a protective body 310 and a lock nut 320.
  • the ring 300 has an opening 330 provided with a thread 340 complementary to the thread 23 of the cylindrical neck 22 so as to allow screwing the ring 300 on the cylindrical collar 22.
  • the nut 320 against also has an opening 350 provided with a complementary thread 360 with thread 23 of the cylindrical collar 22 so as to allow a face of the nut 320 against the cylindrical collar 22.
  • the cover body 310 comprises a base 400 and an annular cover 420 extending from the radial end of the base 400.
  • the base 400 has a lower opening 410 intended to allow the passage of the valve 24 of the gas bottle 21 and provided to be mounted by clamping between the ring 300 and the lock nut 320.
  • the base 400 extends to the annular shell 420 arranged on part of its periphery.
  • the first height h1 of the annular shell 420 is chosen so that, when the protective cap 200 is mounted on the gas bottle 21, the annular shell 420 exceeds the height h0 of the valve 24.
  • the first height h1 is chosen to be greater than the height h0 of the assembly formed by the cylindrical neck 22 and the valve 24 of the gas cylinder 21 in order to comply with the ISO11117 standard.
  • the annular shell 420 also has a first lateral opening 440 allowing an automaton to fill the gas bottle 21 without the need to disassemble, even partially, the annular shell 420.
  • a second lateral opening 450 is also provided in the annular shell 420 so as to position a handle 460.
  • the annular shell 420 has a second height h2, greater than the first height h1, forming four pillars 480 disposed on either side of each lateral opening 400, 450.
  • the annular shell 420 has a honeycomb structure, as illustrated in FIG. figure 2 of the state of the art.
  • This honeycomb structure comprises an inner wall 510 made of material with the upper edge of the base 400 and an outer wall 500 connected to the inner wall 510 by an upper flange 540 extending radially between the inner walls 510 and outer 500 . cavities are formed between the walls 510, 500 by internal partitions 520.
  • Each internal partition has a first section 520 extending radially between the walls 500, 510 and over the entire length of the walls 500, 510.
  • Each internal partition comprises, in in addition, a second section 530 made of material with the first section 520 and extending on the lower face of the base 400.
  • This honeycomb structure makes it possible to limit the weight of the protective cap 200.
  • this annular shell 420 is generally performed by molding a plastic material such as a polymeric resin.
  • the mold thus has a shape complementary to that of the annular shell 420 with a greater height at the level of the formation zone of the pillars 480 disposed on either side of each lateral opening 400, 450.
  • the object of the invention is to obtain a protective cap of a gas cylinder with a satisfactory ratio between the weight and the resistance while limiting the risk of breakage of the injection mold and the time of realization of the protective cap.
  • the invention proposes to solve this problem by means of a protective cap whose length of the internal partition positioned at a pillar is reduced. It follows that the mold has a continuity of material between the element forming the pillar and the element forming the cell directly in the vicinity of this element forming the pillar. The resistance of the mold is thus improved.
  • the invention relates to a protective cap of a gas cylinder having a base having an opening for attachment to a cylindrical neck of a gas cylinder, and an annular shell extending from the radial end of the base and having a first height, the annular shell being configured to surround a valve of a gas cylinder over its entire height.
  • the annular shell has at least one lateral opening configured to allow lateral access to a lateral orifice of the gas cylinder valve without disassembling the annular shell and / or to allow mounting of a handle.
  • the annular shell comprises a honeycomb structure formed by two walls connected by internal partitions extending radially between the walls.
  • the annular shell has a second height, greater than the first height, forming at least one pillar at an end end opening on the at least one lateral opening.
  • the cap of the invention is characterized in that the inner wall of the honeycomb structure closest to the pillar extends over only a portion of the first height of the annular shell.
  • the invention thus makes it possible to improve the strength of the mold intended to manufacture the protective cap, particularly at the level of the pillar shape zone.
  • the invention does not modify the structure of the other internal partitions and allows to maintain a satisfactory ratio between the weight and the resistance of the protective cap. It is also possible to note that this removal of material makes it possible to increase the elasticity of the annular shell at the level of the pillar thus improving the impact resistance in this region.
  • the protective cap also comprises a ring having on its internal lateral face a thread intended to cooperate with a thread of a gas bottle, and connection means between the base and the ring.
  • the base may comprise a thread intended to cooperate directly with a thread of a gas cylinder without changing the invention.
  • Some gas cylinders have a weld seam positioned near the cylindrical neck bearing the faucet. It follows that the ring can rest on this weld bead when it is screwed on the cylindrical neck.
  • the weld beads generally have surfaces whose flatness is not guaranteed and the support of the ring on this surface can induce a shift of the ring in the thread of the thread of the cylindrical neck.
  • the ring may withstand significant forces when tightening the various elements and cause a bad position of the protective cap, which can lead to the breakage of the ring.
  • the lower face of the ring comprises a concentric rib extending from its internal diameter and configured to form a stop, the ring being intended to be screwed onto a gas cylinder until the rib abuts against the top wall of the gas cylinder.
  • the ring comprises a stop at the bottom of the thread configured to form a stop, the ring being intended to be screwed onto a gas bottle until the thread of the gas cylinder abuts against the stop at the bottom of the net.
  • the height of the valve of a gas cylinder may vary. Thus, some valves protrude from the cap and are not protected at their upper ends. In addition, it is not possible to increase the height of the hat body because some storage spaces are dimensioned in height to receive gas bottles with a cap with a predetermined height. There is therefore a need for protection of the upper end of a gas cylinder provided with a high valve.
  • This embodiment solves this problem using a multi-size hat whose body has a constant height and intended to abut on the thread of the valve instead of abutting against the top wall of the bottle. gas.
  • the ring has a shoulder disposed at its upper face and extending radially from the inner diameter to the center of the ring, the shoulder being configured to form a bearing abutment, the ring being intended to be screwed on a gas bottle until the top face of a cylindrical neck of the gas cylinder mounts against the shoulder.
  • the ring comprises on its external lateral face positioning structures, in particular vertical ribs which, in combination with complementary positioning structures that the base, in particular on its internal lateral face, allow the desired positioning of the lateral opening, while preventing the rotation of the base relative to the ring when they are mutually engaged.
  • This embodiment makes it possible to position the lateral orifice of the valve of the bottle in front of a lateral opening of the protective cap.
  • the clamping ring has a lower rim extending substantially horizontally outwards.
  • the upper face of the flange is also provided with positioning structures which cooperate with corresponding structures arranged on the lower periphery of the base.
  • the connecting means between the base and the ring are formed by deformable lugs which advantageously comprises the internal face in the lateral opening of the base cooperating with housings that preferably comprises the side face outer ring.
  • the lugs extend obliquely in the mounting direction of the base in the ring so as to allow deformation of the lugs during assembly of the base until the lugs enter the housing, the lugs then taking their initial shapes so as to block the withdrawal of the base of the ring.
  • This embodiment allows a particularly fast mounting by clipping between the base and the ring.
  • connection means between the base and the ring are made with a counter nut having an opening provided with a complementary thread with the thread of a cylindrical neck of a gas cylinder, the against-nut being configured to be screwed on a thread of a gas cylinder so as to grip the base between the ring and the lock nut.
  • This embodiment ensures a solid and reversible mounting between the base and the ring.
  • the lock nut has gripping structures extending transversely in the locknut and configured to allow the fingers of a tool to drive the counter-nut in rotation to mount and / or disassemble the protective cap on a gas cylinder, the lock nut also having a groove disposed on the top of the locknut so as to guide the movements of the tool during a coupling phase between the fingers and the bores.
  • the tool can be rotated thereby causing the upper face of the locknut to be machined.
  • This embodiment makes it possible to guide movements of the fingers of the tool in the groove so as to allow rapid cooperation between the fingers and the gripping structures. It follows that the risk of machining the upper face of the lock nut is reduced.
  • a tool for mounting a protective cap as previously described, the tool comprising a base provided with fingers, adapted to the diameter of a lock nut of a protective cap, a partially cylindrical body whose diameter is greater than that of the base so as to surround a valve whose lateral orifice extends beyond the cylindrical neck of a gas cylinder, and a opening in the body and in the base so as to allow the positioning of the tool on a counter nut by vertical translation despite the presence of the lateral orifice.
  • the invention relates to a gas cylinder comprising a protective cap according to the first aspect of the invention.
  • the invention relates to a protective cap 20 for a gas bottle 21, complying with the ISO11117 standard, while limiting the risk of breakage of the manufacturing mold.
  • the protective cap 20 will now be described in detail with reference to the Figures 3 to 5 , which represent a first nonlimiting embodiment of the invention.
  • the protective cap 20 is intended to be attached to a gas cylinder 21 as illustrated in FIG. figure 1 of the state of the art.
  • the notions of top, bottom, bottom and top are defined according to the orientation adopted by the protective cap 20 when it is mounted on a gas cylinder 21 in position right as illustrated on the figure 1 of the state of the art. It is obvious that the gas bottle 21 can be stored or positioned differently, for example with the head down, the notions of top, bottom, bottom and top of the protective cap 20 are to be modified accordingly.
  • a gas bottle 21 consists of a pressurized container shaped with a generally domed convex upper portion having a cylindrical neck 22 projecting and in a central position.
  • This neck 22 has a thread 23 on its lateral periphery.
  • the gas bottle 21 also comprises a valve 24 secured in a central position on the upper face of the cylindrical neck 22.
  • This valve 24 usually comprises an opening and closing wheel 25 in the upper part and a lateral orifice 26 for the gas outlet and filling the gas bottle 21.
  • the side port 26 extends horizontally, perpendicularly to the vertical axis of the valve body 24.
  • the protective cap 20 is intended in particular to protect the valve 24 to prevent it from being damaged or torn in the event of a fall or shock, and to facilitate the handling of the gas bottle 21.
  • the protective cap 20 can be made in one piece.
  • the protective cap 20 comprises at least two separate parts, namely a ring 30 and a protective body 31.
  • the protective body 31 comprises a base 40 and an annular shell 42 extending from the radial end of the base 40. It is through the base 40 that the protective body 31 of the protective cap 20 is secured to the gas bottle 21.
  • the base 40 has a lower opening 41 intended to allow the passage of the valve 24 of the gas bottle 21.
  • the base 40 extends to the annular shell 42 arranged on part of its periphery.
  • the first height h1 of the annular shell 42 is chosen so that, when the protective cap 20 is mounted on the gas bottle 21, the annular shell 42 exceeds the height h0 of the valve 24.
  • the annular shell 42 also has a first lateral opening 44 allowing an automaton to fill the gas bottle 21 without it being necessary to dismantle the annular shell 42 even partially .
  • a second lateral opening 45 is also formed in the annular shell 42 so as to position a handle 46.
  • the annular shell 42 has a second height h2 , greater than the first height h1, forming four pillars 48 arranged on either side of each lateral opening 40, 45.
  • the first height h1 is measurable between the lower end of the base 40 and the normal upper end of the annular shell 42, that is to say at the end of the annular shell 42 outside the pillars 48.
  • the first height h1 is chosen to be greater than the height h0 of the assembly formed by the cylindrical neck 22 and the valve 24 of the gas cylinder 21 in order to comply with the ISO11117 standard.
  • the second height h2 is measurable between the lower end of the base 40 and the upper end of the annular shell 42 at the level of the pillars 48.
  • the height h1 of the annular shell 42 can be between 80 and 90 mm while the height h2 can be between 90 and 102 mm.
  • the annular shell 42 comprises a honeycomb structure comprising an inner wall 51 made of material with the upper edge of the base 40 and an outer wall 50 connected to the inner wall 51 by an upper flange 54 extending radially between the internal walls 51 and outer 50.
  • the cells are formed between the two walls 51, 50 by internal partitions 52.
  • Each inner partition 52 has a first section 53 extending radially on the lower face of the base 40 and a second section 55 coming from material with the first section 53 and extending radially between the walls 50, 51 and in the depth of the walls 50, 51 over the entire height hl. This is the case of all internal partitions outside one of those present near the pillars 48.
  • This honeycomb structure allows to limit the weight of the protective cap 20 while conferring a satisfactory mechanical strength.
  • At least one inner partition 52 closest to the pillar 48 extends over only a portion of the first height h1 of the annular shell 42.
  • the inner partition 52 between the two walls 50, 51 is devoid of material. It follows that the first section 53 of the inner partition 52 closest to the opening 45 extends to the edge of the base 40 and does not extend to the second section 55 of the partition internal. In practice, the height of the second section 55 may be between 0 and 60% of the height h1 of the walls 50, 51 according to the desired technical characteristics.
  • the second section 55 thus reduced may constitute an amount of the pillar 48 or extend between the two walls 50, 51 directly near the pillar 48.
  • the internal partitions 52 present in the zones Z1 and Z2 constitute a delimitation of the pillars 48 surrounding the opening 45 relative to the other cells formed between the walls 50, 51 by the internal partitions 52.
  • the zone Z3 has an internal partition 52 extending directly near the pillar 48 defining the opening 44. All or part of the internal partitions 52 closest to the pillars 48 can be reduced. Indeed, in the example of figure 3 , the internal partitions 52 closest to the pillars 48 surrounding the opening 45 are reduced (zones Z1 and Z2) while the internal partitions 52 closest to the pillars 48 surrounding the opening 44 are not reduced (zone Z3).
  • the internal partitions 52 which constitute a delimitation of the pillars 48 are reduced because their reduction greatly improves the strength of the mold for making the protective body 31.
  • the protective cap 20 is preferably made of a polymeric resin. It follows that the mold intended to manufacture the protective body 31 is subjected to the pressure of the resin during the production of the protective body 31. The invention makes it possible to reinforce the elements of the mold intended to form the pillars 48 surrounding the opening 45.
  • the base 40 of the protection body 31 has a central opening 41 intended to cooperate with the ring 30 screwed onto the cylindrical neck 22 of a gas cylinder 21.
  • the ring 30 has an opening 33 provided with a thread 34 complementary to the thread 23 of the cylindrical neck 22 so as to allow screwing of the ring 30 on the cylindrical neck 22.
  • the base 40 and the ring 30 comprise complementary positioning structures .
  • these complementary structures can be made in the form of vertical ribs located on the outer face of the ring 30 and which extend on a horizontal rim of the ring 30.
  • the base 40 has complementary ribs 62 located on the internal face of its central opening 41 and which extend under the base 40. These complementary ribs, when mutually engaged, prevent the rotation of the protective body 31 with respect to the ring 30.
  • the protective body 31 is positioned so that the lateral opening 44 is situated in front of the lateral orifice 26 of the valve 24.
  • the ring 30 may also comprise a concentric rib 60 extending from the internal diameter and positioned under the lower face of the ring 30.
  • This rib 60 serves to form a stop on the top of the gas bottle 21 so as to prevent the support of the ring 30 on a weld bead disposed near the cylindrical neck 22 facing the ring 30 between the rib 60 and the outer diameter of said ring 30.
  • the height of the valve 24 of a gas cylinder 21 may vary. Thus, some valves 24 protrude from the cap and are not protected at their upper ends. In addition, it is not possible to increase the height of the protective body 31 of the protective cap 20 because some storage spaces are dimensioned in height to receive gas cylinders provided with a protective cap 20 with a height predetermined. There is therefore a need for protection of the upper end of a gas cylinder 21 provided with a valve 24 of great height.
  • the ring 30 may comprise a stop at the bottom of the thread configured to form a stop. The ring 30 is then screwed onto a gas bottle 21 until the thread 23 of the gas bottle 21 abuts against the stop at the bottom of the net.
  • the ring 30 has a shoulder disposed at its upper face and extending radially from its inner diameter towards the center of the ring 30, the shoulder being configured to form a support abutment.
  • the ring is then screwed onto a gas bottle 21 until the upper face of the cylindrical neck 22 of the gas bottle 21 abuts against the shoulder.
  • the fixing of the protective body 31 on the ring 30 can be effected in several ways.
  • the overall height of the ring 30 is less than that of the cylindrical neck 22 of the gas bottle 21 so that, when the ring 30 is screwed onto the thread 23 of the gas bottle 21, a part of this thread 23 extends projecting above the ring 30.
  • the protective body 31 is immobilized in position by the screwing of a counter-nut 32, illustrated in FIG. figure 5 on the protruding portion of the thread 23 located above the ring 30.
  • the base 40 is then sandwiched between the ring 30 and the locknut 32.
  • the base 40 has, at its upper face, a groove provided for housing the locknut 32 when it is screwed onto the upper part of the thread 23 of the cylindrical neck 22.
  • the lock nut 32 presents an opening 35 provided with a threading 36 complementary to the thread 23 of the cylindrical neck 22 so as to allow screwing of the counter nut 32 on the cylindrical neck 22.
  • the ring 30 and the locknut 32 each comprise gripping structures, respectively 61 and 62, for example in the form of orifices as shown in the figures. These gripping structures are designed to be engaged by the fingers 90 of a special screwing tool 89 adapted to screw them on the thread 23 of the cylindrical neck 22 of the bottle 21.
  • the use of a special screwing tool adapted allows the ring 30 and the lock nut 32 to be screwed tightly onto the gas bottle 21 while preventing a user, who does not possess the appropriate tool, from being able to unscrew them.
  • the use of a special tool for these screwings reinforces in this case the irreversible nature of the fastening of the protective cap 20 on the gas bottle 21 while ensuring correct positioning of the lateral opening.
  • the tool 89 comprises a cylindrical body 92 closed at its upper end by a disk 94.
  • the cylindrical body 92 is extended by a base 91 extending at an angle so that to reduce the radius of the cylindrical body 92 to reach the gripping structures 62 of the lock nut 32.
  • the tool 89 also has four fingers 90 extending transversely from the lower end of the tool 89. the radius of the cylindrical body 92 being greater than that of the lower end 93 of the tool 89, the tool 89 makes it possible to screw the lock nut 32 and / or the ring 30 even when the valve 24 exceeds the diameter of the cylindrical neck 22.
  • the tool 89 has an opening in the base 91 and in the cylindrical body 92 for positioning the tool 89 on a locknut 32 by translation despite the presence of a valve 24 whose lateral orifice 26 s' extends beyond the neck 22.
  • This opening is made between two fingers 90 of the tool 89 in a substantially straight section in the height of the tool 89 and up to about 60 to 80% of the height of the tool 89.
  • the lock nut 32 has two concentric lips 63, 64 arranged on the upper face and between which the gripping structures 62 are positioned .
  • the fixing of the protective body 31 on the ring 30 can be effected by clipping, gluing, welding, stamping the protective body 31 on the ring 30.
  • the Figures 8 and 9 illustrate a variant of the invention in which the fixing of the protective body 31 on the ring 30 is made by clipping.
  • the ring 30 has a groove 71 formed on the outer lateral face and intended to form a housing for the lugs 70 of the base 40 of the protective body 31.
  • the base 40 has four lugs 70 regularly distributed over- above the ribs 62 located on the inner face of its central opening 41.
  • the lugs 70 extend at an angle towards the top of the protective body 31.
  • the thickness of the lugs 70 is calibrated in order to impart a bending capacity to the lugs 70 during the mounting of the protective body 31 on the ring 30.
  • the protective body 31 is translationally mounted above the ring 30.
  • the lugs 70 deform against the wall of the central opening 41 of the base 40 to penetrate into the groove 71. The lugs 70 then resume their initial shapes at an angle so as to block withdrawal of the base 40 of the 30.
  • the lugs 70 may be arranged on the ring 30 and the groove formed on the base 40.
  • the present application therefore proposes a protective cap 20 complying with the ISO11117 standard.
  • the shape of the cap 20 concomitantly makes it possible to limit the weight of the protective cap 20 and to limit the mechanical stresses of the mold during the production of the body 31.
  • the present application also relates to a gas bottle 21 provided with a protective cap 20 as described above.
  • the gas bottle 21 may contain liquefied petroleum gas, butane, propane or technical gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)

Claims (10)

  1. Schutzkappe (20) einer Gasflasche (21), umfassend:
    - eine Basis (40), umfassend eine Öffnung (41), die für die Befestigung auf einem zylindrischen Hals (22) einer Gasflasche (21) vorgesehen ist, und
    - einen ringförmigen Körper (42), welcher sich vom radialen Ende der Basis (40) erstreckt und eine erste Höhe (h1) aufweist, wobei der ringförmige Körper (42) so ausgestaltet ist, dass er ein Ventil (24) einer Gasflasche (21) über deren gesamte Höhe umgreift,
    - den ringförmigen Körper (42), welcher mindestens eine seitliche Öffnung (44-45) aufweist, welche derart ausgestaltet ist, dass sie einen seitlichen Zugang zu einer seitlichen Öffnung (26) des Ventils (24) der Gasflasche (21) ohne Demontieren des ringförmigen Körpers (42) ermöglicht und/oder die Anbringung eines Griffs (46) zulässt,
    - den ringförmigen Körper (42), umfassend eine Wabenstruktur, welche durch zwei Wände (50-51) ausgebildet ist, die durch innere Trennwände (52) miteinander verbunden sind, die sich radial zwischen den Wänden (50-51) erstrecken,
    - den ringförmigen Körper (42), welcher eine zweite Höhe (h2) aufweist, welche die erste Höhe (h1) übersteigt und mindestens einen Pfeiler (48) am äußeren Ende ausbildet, das auf die mindestens eine seitliche Öffnung (44-45) mündet,
    dadurch gekennzeichnet, dass die innere Trennwand (52) der Wabenstruktur, welche dem Pfeiler (48) am nächsten ist, sich nur über einen Teil der ersten Höhe (h1) des ringförmigen Körpers (42) erstreckt.
  2. Schutzkappe nach Anspruch 1, dadurch gekennzeichnet, dass diese zudem Folgendes umfasst:
    - einen Ring (30), umfassend ein Gewinde (34), welches für ein Zusammenwirken mit dem Gewinde (23) einer Gasflasche (21) vorgesehen ist, und
    - Verbindungsmittel zwischen der Basis (40) und dem Ring (30).
  3. Schutzkappe nach Anspruch 2, in welcher die Unterseite des Rings (30) ein konzentrisches Bohrloch (60) umfasst, welche sich vom Innendurchmesser des besagten Rings (30) aus erstreckt und derart ausgestaltet ist, dass sie einen Anschlag bildet, wobei der Ring (30) zum Anschrauben auf eine Gasflasche (21) vorgesehen ist, bis das Bohrloch (60) an der oberen Seite der Gasflasche (21) anstößt.
  4. Schutzkappe nach Anspruch 2 oder 3, in welcher der Ring (30) eine Arretierung im Gewindekern umfasst, die so ausgestaltet ist, dass sie einen Anschlag ausbildet, wobei der Ring (30) zum Anschrauben auf eine Gasflasche (21) vorgesehen ist, bis das Gewinde (23) der Gasflasche (21) an die Arretierung im Gewindekern anstößt.
  5. Schutzkappe nach Anspruch 2 oder 3, in welcher der Ring (30) auf seiner Oberseite einen Vorsprung vom Innendurchmesser (30) aus umfasst, welcher sich radial in Richtung Zentrum des Rings (30) erstreckt, wobei der Vorsprung zur Bildung eines Stützanschlags ausgebildet ist, wobei der Ring (30) zum Anschrauben auf eine Gasflasche (21) vorgesehen ist, bis die Oberseite eines zylindrischen Halses (22) der Gasflasche (21) an den Vorsprung anstößt.
  6. Schutzkappe nach einem der Ansprüche 2 bis 5, in welcher der Ring (30) Positionierungsstrukturen umfasst, welche in Verbindung mit den komplementären Positionierungsstrukturen (62), die die Basis aufweist (40), die gewünschte Positionierung der seitlichen Öffnung (44-45) ermöglichen und gleichzeitig eine Drehung der Basis (40) bezüglich des Rings (30) verhindern, wenn sie ineinandergreifen.
  7. Schutzkappe nach einem der Ansprüche 2 bis 6, in welcher die Verbindungsmittel zwischen der Basis (40) und dem Ring (30) durch verformbare Stifte (70) ausgeführt werden, welche mit Aussparungen (71) zusammenwirken, wobei sich die Stifte (70) schräg in Richtung der Montage der Basis (40) des Rings (30) erstrecken, sodass eine Verformung der Stifte (70) bei der Montage der Basis (40) ermöglicht wird, bis die Stifte (70) in die Aussparungen (71) einfassen, woraufhin die Stifte (70) wieder ihre ursprüngliche Form annehmen, sodass sie ein Zurückziehen der Basis (40) vom Ring (30) unterbinden.
  8. Schutzkappe nach einem der Ansprüche 2 bis 6, in welcher die Verbindungsmittel zwischen der Basis (40) und dem Ring (30) mit einer Gegenmutter (32) ausgeführt werden, welche eine Öffnung (35) aufweist, die mit einem zum Gewinde (23) eines zylindrischen Halses (22) einer Gasflasche (21) komplementären Gewinde (36) versehen ist, wobei die Gegenmutter (32) zum Anschrauben auf ein Gewinde (23) einer Gasflasche (21) ausgestaltet ist, sodass die Basis (40) zwischen den Ring (30) und die Gegenmutter (32) eingespannt wird.
  9. Schutzkappe nach Anspruch 8, in welcher die Gegenmutter (32) Greifstrukturen (62) aufweist, die sich querlaufend in der Gegenmutter (32) erstrecken und derart ausgestaltet sind, dass sie den Stiften (90) eines Werkzeugs (89) die Drehung der Gegenmutter (32) zur Montage und/oder Demontage der Schutzkappe auf einer Gasflasche (20) ermöglichen, wobei die Gegenmutter (32) zudem eine Nut (65) aufweist, die auf der Oberseite der Gegenmutter (32) angeordnet ist, sodass die Bewegungen des Werkzeugs (89) während einer Eingriffsphase zwischen den Stiften (90) und den Bohrungen (80) geführt werden.
  10. Gasflasche, umfassend eine Schutzkappe (10) nach einem der Ansprüche 1 bis 9.
EP16305024.8A 2016-01-12 2016-01-12 Universalschutzvorrichtung für gasflasche Active EP3193072B1 (de)

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EP3193072B1 true EP3193072B1 (de) 2017-12-13

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
US10982814B2 (en) 2019-09-03 2021-04-20 Amtrol Licensing Inc. Handle assembly for a portable pressurized gas cylinder
USD930783S1 (en) 2019-09-03 2021-09-14 Amtrol Licensing, Inc. Handle

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Publication number Priority date Publication date Assignee Title
DE102017007162A1 (de) * 2017-07-27 2019-01-31 Messer Gaspack Gmbh Ventilschutzeinrichtung für Druckgasbehälter
MA43446B1 (fr) * 2018-10-01 2020-07-29 Imaplast Collet protecteur de valve pour bouteilles gpl
IT201900003865A1 (it) * 2019-03-18 2020-09-18 Tiziano Briata Dispositivo di protezione per valvole di bombole di gas compresso o liquefatto, bombola di gas compresso o liquefatto comprendente tale dispositivo e metodo di montaggio.
IT201900003869A1 (it) * 2019-03-18 2020-09-18 Tiziano Briata Protezione per valvole di bombole di gas compresso o liquefatto, bombola di gas compresso o liquefatto comprendente tale protezione.
CN111412386A (zh) * 2020-05-08 2020-07-14 长春致远新能源装备股份有限公司 Lng供气系统气瓶用新材料保护圈结构及与气瓶连接结构

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FR1360952A (fr) 1962-06-20 1964-05-15 Nat Res Dev Plateforme pour servir à déplacer des charges horizontalement
DE4440298C2 (de) * 1994-11-11 1997-05-07 Andreas Vetter Gasflasche mit Ventilschutzkragen
FR3013101B1 (fr) * 2013-11-08 2015-11-06 Rovip Protecteur universel pour bouteille a gaz

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10982814B2 (en) 2019-09-03 2021-04-20 Amtrol Licensing Inc. Handle assembly for a portable pressurized gas cylinder
USD930783S1 (en) 2019-09-03 2021-09-14 Amtrol Licensing, Inc. Handle

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