WO2017106905A1 - Trappe d'accès - Google Patents

Trappe d'accès Download PDF

Info

Publication number
WO2017106905A1
WO2017106905A1 PCT/AU2016/051138 AU2016051138W WO2017106905A1 WO 2017106905 A1 WO2017106905 A1 WO 2017106905A1 AU 2016051138 W AU2016051138 W AU 2016051138W WO 2017106905 A1 WO2017106905 A1 WO 2017106905A1
Authority
WO
WIPO (PCT)
Prior art keywords
grating
opening
access
frame
configuration
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.)
Ceased
Application number
PCT/AU2016/051138
Other languages
English (en)
Inventor
Nathan Charles CRUICKSHANK
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.)
Parkwood Investments Pty Ltd
Original Assignee
Parkwood Investments Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2015905315A external-priority patent/AU2015905315A0/en
Application filed by Parkwood Investments Pty Ltd filed Critical Parkwood Investments Pty Ltd
Priority to AU2016374649A priority Critical patent/AU2016374649B2/en
Priority to NZ744504A priority patent/NZ744504A/en
Priority to EP16876994.1A priority patent/EP3394347B1/fr
Publication of WO2017106905A1 publication Critical patent/WO2017106905A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1463—Hinged connection of cover to frame
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/127—Manhole shafts; Other inspection or access chambers; Accessories therefor with devices for impeding fall or injuries of persons
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic

Definitions

  • the present invention relates to an access hatch for an opening such as that of a subsurface facility. More particularly, but not exclusively, the invention relates to an access hatch for an opening of a pump station.
  • Sub-surface facilities such as pump stations require occasional access for inspection and or servicing of equipment. When not in use, it is important that an opening for the facility be securely covered to prevent accidental or unauthorised access to the facility and/or equipment housed therein.
  • Examples of the invention seek to solve, or at least ameliorate, one or more disadvantages of previous access hatches.
  • an access hatch for an opening such as that of a sub- surface facility
  • the hatch having a frame for fitting to the perimeter of the opening, a cover lid pivotally coupled to the frame, and grating in pivotable relationship with the frame, the hatch being manoeuvrable between multiple configurations for varying the level of access to the opening, wherein: in a first configuration the grating extends across the opening and the cover lid is pivoted into a closed position in which it at least substantially covers the grating and denies access to the opening;
  • the lid in a second configuration the lid is pivoted to uncover the grating to allow inspection of the facility;
  • the grating and lid are moved into substantially upright positions so as to form a barrier around the opening
  • the barrier including a substantially upright gated portion for selectively opening and closing the barrier to allow and restrict access to the opening respectively.
  • the gated portion is formed in the grating.
  • the grating includes a plurality of grate segments which are substantially parallel with each other when the hatch is in the first and second configurations and pivotable from the frame in the third configuration in which the segments define sides of the barrier.
  • the grating may be formed in two separate sub assemblies, each assembly including two collapsible grate segments pivotally connected together.
  • the lid In the second configuration, the lid is preferably pivotable to a substantially upright position.
  • the grating is pivotally coupled to the frame.
  • the grating is secured within the frame to support the weight of a person.
  • apertures formed in the grating are sized to allow visual inspection through the grating.
  • structural members of the grating are aligned when in the second configuration.
  • the access hatch can further comprise a roller on a free end of the or each section of grating for supporting the weight of the grating in the third configuration.
  • the access hatch may further include a plurality of extension members extending from the grating to increase the height of the barrier.
  • the lid is lockable to the frame. The lid may be formed in two parts lockable together.
  • Figure 1 is a perspective view of an access hatch of one embodiment of the invention in an open configuration
  • Figure 2 is another perspective view of the access hatch in a partially open configuration
  • Figure 3 is another perspective view of the access hatch in a partially open configuration
  • Figure 4 is another perspective view of the access hatch in a closed configuration
  • Figure 5 is a plan view of the access hatch in the partially open configuration
  • Figure 6 is a close perspective view of a locking latch for use with the access hatch
  • Figure 7 is a plan view of the access hatch in the open condition
  • Figure 8 is a close sectional view of a frame of the access hatch
  • Figure 9 is another close sectional view of a frame of the access hatch.
  • Figure 10 is a perspective view of another access hatch in an open configuration
  • Figure 11 is a side view of the hatch of Figure 10;
  • Figure 12 is an end view of the hatch of Figure 10;
  • Figure 13 is a close sectional view showing detail B-B indicated in Figure 12;
  • Figure 14 is a close sectional view showing detail C-C indicated in Figure 12.
  • Figure 15 is a close sectional view of a stay sliding mechanism.
  • an access hatch 10 according to a preferred embodiment of the present invention.
  • the access hatch 10 is configured for covering an opening such as that of a sub-surface facility.
  • An example of such a facility is a pump station.
  • the hatch 10 has a frame 12 for fitting to the perimeter of the opening, a cover lid 14 pivotally coupled to the frame 12, and grating 16 in pivotable relationship with the frame 12.
  • the hatch 10 is manoeuvrable between multiple configurations for varying the level of access to the opening.
  • lid 14 is formed in two components 14a, 14b and grating 16 is formed in segments 16a, 16b, 16c, 16d.
  • the lid 14 and grating 16 cooperate to, in use, form a barrier around the opening and restrict access thereto.
  • the hatch 10 is provided with an upright gated portion 20 for selectively opening and closing the barrier to allow and restrict access to the opening respectively.
  • a gated portion 20 is formed in each of grating segments 16b, 16c, though it may be formed in only other of the grating segments. In other forms, the gated portion 20 may be formed in the lid 14.
  • Figure 3 illustrates a closed or first configuration in which the grating 16 extends across the opening and the cover lid 14 is pivoted into a closed position in which it at least substantially covers the grating 16 and denies access to the opening.
  • the lid 14 is locked to the frame or grating 16 via lock 22 so as to prevent unauthorised access to the opening.
  • the lid 14 is formed in two parts so as to reduce the weight of components a user has to handle.
  • lock 22 is configured to lock the lid 14 to grating 16.
  • FIG. 2 illustrates a second or intermediate configuration in which the lid 14 is pivoted to uncover the grating to allow inspection of and/or limited access to the facility.
  • the lid 14 is pivotable to a substantially upright position.
  • lid parts 14a, 14b are each provided with a stay 24.
  • Stays 24 may be pivotably coupled to the frame and provided with a boss for sliding engagement with a slot formed in the lid parts 14a, 14b.
  • the slot preferably has a catch or notch formed therein to retain the lid 14 in the open configuration.
  • FIG. 1 illustrates the hatch 10 in a third configuration in which the grating 16 and lid 14 are moved into substantially upright positions so as to form a barrier around the opening.
  • lid parts 14a and 14b and grating segments 16a, 16b, 16c and 16d cooperate to form the barrier.
  • the barrier is generally continuous so as to restrict access to the facility.
  • the hatch 10 also enables a gate like access whereby one side of the opening can be accessed at a time whilst still protecting the opposite side.
  • Gated portion 20 formed in grating portion 16c is provided with a locking bolt 26 that cooperates with the frame to lock the gated portion 20 in position.
  • a support block 28 may also be provided for supporting the gated portion 20 and/or locking the gated portion 20 in a closed position.
  • a locking bolt 26 and support block 28 may be provided for each gated portion 20.
  • the gated portion may be configured to be releasably securable with other grate segments.
  • the grating 16 includes a plurality of grate segments 16a, 16b, 16c, 16d which are substantially parallel with each other when the hatch 10 is in the first and second configurations in which the grating is horizontally inclined and received against the frame 12.
  • the grate segments 16a, 16b, 16c, 16d are pivotable from the frame 12 in the third configuration in which the segments 16a, 16b, 16c, 16d define sides of the barrier.
  • the grating 16 is formed in two separate sub assemblies 30a, 30b, each assembly including two collapsible grate segments 16 pivotally connected together.
  • sub assembly 30a includes grate segments 16a and 16b
  • sub assembly 30b includes grate segments 16c and 16d.
  • Each subassembly 30a, 30b is pivotally coupled to the frame so that, in use, an operator will grasp and lift an uppermost portion of the sub assembly, which will swing upwards.
  • the grating members of the subassembly can be pivoted apart and arranged at approximately 90 degrees to each other to form a part of the barrier.
  • Each sub assembly may be provided with a lifting handle or marked location to show a best lifting position. In use, grate segments 16b and 16c are lifted first by a user.
  • the hatch may include only 3 or more than 4 portions.
  • the grating may include one grating subassembly and a further grate segment.
  • the additional portions may be formed into the grating subassemblies as further segments collapsible with a respective subassembly or they may simply pivot upwardly from the lid 12.
  • the grate segments 16a, 16b, 16c, 16d are formed of substantially perpendicular strip members, that may be formed of aluminium. Between the strip members, apertures are formed.
  • the grate segments 16a, 16b, 16c, 16d are configured so that the apertures, which are sized to allow visual inspection through the grating, are aligned when in the second configuration so as to minimise visual obstruction.
  • the strip members may be configured so that the size of the apertures is sufficient for an operator to reach through to withdraw float switches and access instruments without having to raise the grating.
  • the grating 16 may further include a plurality of extension members (not shown) extending from the grating 16 to increase the height of the barrier.
  • the extension members may be telescopic and retractable for moving the grating between the first and third configurations.
  • Figure 5 illustrates a close view of self locking feature 40 illustrated in Figure 1.
  • lid parts 14a, 14b are each formed with catch 42 extending therefrom and configured for cooperation with lever 44 formed on grating parts 16a, 16d. When moved into the third or open condition, lever 44 is brought into contact with catch 42 to secure a respective lid part 14a, 14b with a corresponding grating part 16a, 16b.
  • Lever 44 may be resiliency biased upwardly or downwardly, using a spring for example, so as to be releasably operable as required. It will be appreciated that other releasable locking means may be provided.
  • the frame 12 is preferably formed of aluminium extrusions and configured to be generally flush mounting with a ground surface.
  • Frame 12 includes a surround 13 configured to cover an edge of the opening.
  • the frame 12 and surround 13 may be integrally formed of an aluminium extrusion.
  • the frame 12 and surround 13 are configured so that the lid extends less than 18mm above the surface in which the opening is formed, thereby reducing tripping hazards when the hatch 10 is not in use.
  • a cushion gasket 48 is provided between the lid 14 and the frame 12.
  • the cushion gasket 48 may be provided to cushion against slamming and may also have the purpose of preventing odour escaping from the subsurface chamber, as well as preventing stormwater ingress due to flooding or excessive stormwater runoff.
  • the hatch 10 is formed of non-corrosive materials such as aluminium.
  • Surround 13 is preferably formed of extruded aluminium sections joined together at the corners of the hatch 10. The extruded sections are preferably formed from heavy duty aluminium.
  • the frame 12/surround 13 is configured to form a continuous hinge with lid 14, as illustrated in Figure 9.
  • the hatch 10 can sit generally flush with a ground surface to reduce tripping hazards.
  • the lid 14 is preferably formed of chequer plate aluminium.
  • the hatch 10 may be provided with an apparatus to enable monitoring or testing of equipment in the environment in the facility, such as a gas sampling box 50, that may be externally accessible.
  • an access hatch 110 according to another preferred embodiment of the present invention.
  • the access hatch 110 is also configured for covering an opening such as that of a sub-surface facility.
  • Access hatch 110 has many features in common with previously described access hatch 10. For convenience, like features have been indicated in the Figures with like reference numerals incremented by 100 and the preceding description is intended to apply, except as indicated below.
  • access hatch 110 is formed with telescopic extension members forming liftable upper rail segments 117a, 117b, 177c, 177d extending from respective grating segments 116a, 116b, 116c, 116d.
  • Spring loaded buttons 119 are provided to retain the upper rail segments in a lifted condition once raised.
  • Telescopic extension members may be provided for applications having small grating sections that, when erected, do not form a barrier of sufficient height to provide adequate safety.
  • access hatch 110 is also provided with an alternatively configured self locking feature 140 on either side thereof.
  • Each self locking feature 140 includes a member 142 extending from the lid and having a hole formed therein, through which a drop lock pin 145 can be received. Once the drop lock pin 145 has been received through the hole in member 142, it can be rotated to lock the grating 116a or 116d to a respective lid part 114a, 114b.
  • the drop lock pin 145 may be mounted on a threaded insert that can be screwed into a corresponding aperture formed in the grating segment and two stainless steel spacers 147 can be provided as required.
  • Figure 14 illustrates a roller 152 provided on a free end of the or each section of grating 116 for supporting the weight of the grating when the access hatch 110 is in the third configuration.
  • the roller 152 is mounted to a lower surface of the grating 116 via a stainless steel pin bolt set and configured to roll over an upper surface of surround 113 to support the weight of the grating 116 when opening and closing the grating segment.
  • Figure 15 illustrates further detail of a slide mounting for stay 124, which is mounted to - Si - support gusset 125 extending from surround 113, via sliding shoulder bolt 127, sliding washer 129 and sliding washer 131.
  • a slide mounting for stay 124 which is mounted to - Si - support gusset 125 extending from surround 113, via sliding shoulder bolt 127, sliding washer 129 and sliding washer 131.
  • Such a configuration allows the lid be retained in an open condition, and also to open and close smoothly.
  • the embodiments have been described by way of example only and modifications are possible within the scope of the invention disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Tents Or Canopies (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

L'invention concerne une trappe d'accès pour une ouverture telle que celle d'une installation souterraine, la trappe ayant un cadre se montant sur le périmètre de l'ouverture, un couvercle accouplé de manière pivotante au cadre, et une grille en relation pivotante avec le cadre, la trappe pouvant être manœuvrée entre de multiples configurations pour varier le niveau d'accès à l'ouverture : dans une première configuration, la grille s'étendant à travers l'ouverture et le couvercle étant pivoté dans une position fermée dans laquelle il recouvre au moins sensiblement la grille et interdit l'accès à l'ouverture ; dans une deuxième configuration, le couvercle étant pivoté pour découvrir la grille pour permettre l'inspection de l'installation ; et, dans une troisième configuration, la grille et le couvercle étant déplacés dans des positions sensiblement verticales de façon à former une barrière autour de l'ouverture, la barrière comprenant une partie de porte sensiblement verticale pour sélectivement ouvrir et fermer la barrière pour permettre et limiter l'accès à l'ouverture, respectivement.
PCT/AU2016/051138 2015-12-22 2016-11-22 Trappe d'accès Ceased WO2017106905A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2016374649A AU2016374649B2 (en) 2015-12-22 2016-11-22 Access hatch
NZ744504A NZ744504A (en) 2015-12-22 2016-11-22 Access hatch
EP16876994.1A EP3394347B1 (fr) 2015-12-22 2016-11-22 Trappe d'accès

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2015905315 2015-12-22
AU2015905315A AU2015905315A0 (en) 2015-12-22 Access hatch

Publications (1)

Publication Number Publication Date
WO2017106905A1 true WO2017106905A1 (fr) 2017-06-29

Family

ID=59088651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2016/051138 Ceased WO2017106905A1 (fr) 2015-12-22 2016-11-22 Trappe d'accès

Country Status (4)

Country Link
EP (1) EP3394347B1 (fr)
AU (1) AU2016374649B2 (fr)
NZ (1) NZ744504A (fr)
WO (1) WO2017106905A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2567311A (en) * 2017-08-25 2019-04-10 Aqua Fabrications Ltd Lid assembly
WO2020098342A1 (fr) * 2018-11-14 2020-05-22 山东光韵智能科技有限公司 Nouveau couvercle de regard de sécurité doté d'une fonction de clôture
GB2580760A (en) * 2018-12-10 2020-07-29 J Mac Safety Systems Ltd A hatch
CN115142475A (zh) * 2022-08-09 2022-10-04 中交上海航道勘察设计研究院有限公司 一种多功能井盖
US20230304250A1 (en) * 2022-03-28 2023-09-28 Ohio Gratings, Inc. Folding barrier assembly and method of use

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266380A (en) 1979-02-09 1981-05-12 Christy Concrete Products, Inc. High strength cover for underground utility box
FR2639383A1 (fr) 1988-11-24 1990-05-25 Const Electro Meca Plain Trappe de visite pour canalisations souterraines
US5941024A (en) 1998-03-20 1999-08-24 Journault-Jourplex Inc. Floor hatch with integrated security fence
FR2822486A1 (fr) * 2001-03-20 2002-09-27 Fernandes Ets Dispositif de protection de personnes autour d'une ouverture sur une surface de circulation du type passerelles
US6640495B1 (en) 1999-01-21 2003-11-04 Syracuse Castings Sales Corp. Safety hatch for preventing fall-through and unauthorized entry
US6644342B1 (en) 2001-09-10 2003-11-11 Romtec Utilities, Inc. Modular integrated wastewater lift station construction kit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266380A (en) 1979-02-09 1981-05-12 Christy Concrete Products, Inc. High strength cover for underground utility box
FR2639383A1 (fr) 1988-11-24 1990-05-25 Const Electro Meca Plain Trappe de visite pour canalisations souterraines
US5941024A (en) 1998-03-20 1999-08-24 Journault-Jourplex Inc. Floor hatch with integrated security fence
US6640495B1 (en) 1999-01-21 2003-11-04 Syracuse Castings Sales Corp. Safety hatch for preventing fall-through and unauthorized entry
FR2822486A1 (fr) * 2001-03-20 2002-09-27 Fernandes Ets Dispositif de protection de personnes autour d'une ouverture sur une surface de circulation du type passerelles
US6644342B1 (en) 2001-09-10 2003-11-11 Romtec Utilities, Inc. Modular integrated wastewater lift station construction kit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3394347A4

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2567311A (en) * 2017-08-25 2019-04-10 Aqua Fabrications Ltd Lid assembly
GB2567311B (en) * 2017-08-25 2022-10-12 Aqua Fabrications Ltd Lid assembly
WO2020098342A1 (fr) * 2018-11-14 2020-05-22 山东光韵智能科技有限公司 Nouveau couvercle de regard de sécurité doté d'une fonction de clôture
GB2580760A (en) * 2018-12-10 2020-07-29 J Mac Safety Systems Ltd A hatch
GB2580760B (en) * 2018-12-10 2021-02-17 J Mac Safety Systems Ltd A hatch
US20230304250A1 (en) * 2022-03-28 2023-09-28 Ohio Gratings, Inc. Folding barrier assembly and method of use
CN115142475A (zh) * 2022-08-09 2022-10-04 中交上海航道勘察设计研究院有限公司 一种多功能井盖

Also Published As

Publication number Publication date
EP3394347B1 (fr) 2023-06-14
AU2016374649B2 (en) 2022-06-23
NZ744504A (en) 2023-01-27
EP3394347C0 (fr) 2023-06-14
EP3394347A4 (fr) 2019-06-12
EP3394347A1 (fr) 2018-10-31
AU2016374649A1 (en) 2018-08-09

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