CN102864980A - Device for locking at least one covering element on supporting frame and unlocking from supporting frame - Google Patents
Device for locking at least one covering element on supporting frame and unlocking from supporting frame Download PDFInfo
- Publication number
- CN102864980A CN102864980A CN2012102294320A CN201210229432A CN102864980A CN 102864980 A CN102864980 A CN 102864980A CN 2012102294320 A CN2012102294320 A CN 2012102294320A CN 201210229432 A CN201210229432 A CN 201210229432A CN 102864980 A CN102864980 A CN 102864980A
- Authority
- CN
- China
- Prior art keywords
- locking bolt
- key
- cap piece
- lid
- eyelet
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/006—Locks or fastenings for special use for covers or panels
-
- 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
- E02D29/1445—Tools for positioning or removing cover frames
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
- E05B35/02—Locks for use with special keys or a plurality of keys ; keys therefor which can be shifted laterally or rotated about an axis perpendicular to the key axis
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Supports For Pipes And Cables (AREA)
- Catching Or Destruction (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention relates to a device for locking at least one covering element on a supporting frame and unlocking from the supporting frame. According to the invention, the shape of an opening (10) of the covering element (3) can drive a lock bolt (7) through its swinging in a plane vertical to the plane of the covering element (3). The invention is applied to road administration equipment.
Description
Technical field
The present invention relates at least one cap piece is locked on its support frame and from the device of support frame release.
The present invention especially but is used for the shutoff device that network of underground checks passage such as soil pipe inspection eye with limiting.
Background technology
People know that the many modes that can violate are locked in cap piece such as cover plate the mechanical device on the support frame of this part.
Some known mechanical device is the band lock, comprise the movable locking bolt (pene) of installing, this locking bolt is subjected to guided slidable under cap piece, and can cooperate with the locked groove (gache) of support frame, in order to cap piece is locked on the support frame, this device also comprises the movable key of locking bolt that the opening that can pass cap piece enters, in order to drive locking bolt from the latched position to the unlocked position.
The major defect of these known devices is to use special key, and the opening that in a single day key passes cap piece enters, and must handle it and swing, in order to make locking bolt move to its unlocked position by the mechanism of more complicated.
Summary of the invention
The objective of the invention is to overcome this shortcoming by proposing a device, this device can be locked in cap piece at its unlocked position safe manoeuvring the locking bolt on this part support frame, has again very simple structure simultaneously.
For this reason, according to the present invention, at least one cap piece is locked on its support frame and the device of release comprises the movable locking bolt of installing, this locking bolt is guided in the cap piece lower slider, and can cooperate with the locked groove of support part, in order to cap piece is locked on the support frame, this device comprises that also the opening that can pass cap piece enters in order to make locking bolt move the locking bolt action key of unlocked position from latched position, this device is characterised in that, the opening shape of cap piece can make key pass through this swing in the plane vertical with the plane of cap piece and drive locking bolt.
Locking bolt preferably includes one and penetrates eyelet, and when key entered the opening of cap piece, an end of action key can enter into this eyelet.
Advantageously, the opening shape of cap piece passes this part for guiding action key to be passed through, and guides the end of action key to enter in the eyelet of locking bolt, and the swing of then passing through the action key drives locking bolt.
The opening of cap piece preferably includes the parallel-slope and an eyelet vertical with of two inclined-planes that are arranged near the horizontal little bar of key end of two guiding action keys, this eyelet can guide the action key to swing to it and make the locking bolt unlocked position, at this unlocked position, the little bar of action key is positioned under the cap piece, in order to can the relative support frame of cap piece be lifted by being applied to action pulling force on the key.
In addition, the eyelet of locking bolt is included in the centre-drilling hole that forms between two circular chamferings, and the angle of slope of circular chamfering equals to move the angle of slope of two lead-in chamfered of key substantially.
Locking bolt is brought back to its latched position by the compression helical spring of installed under prestressing between the interior reinforcing rib of locking bolt and cap piece.
Locking bolt comprises the rod part of passing interior reinforcing rib and passes the flat lock part of cap piece wall, return spring reinforce between the flat lock part of rib and locking bolt the coaxial rod that is installed in locking bolt partly on.
Locking bolt its latched position by an annulate shaft to remaining in the cap piece, the end of the rod of this ring and locking bolt part connects together, and on the surperficial relative reinforcing rib surface that returning place force abuts in the end convolution of spring reclines by spring.
Locked groove is made of the eyelet that forms in the support frame wall.
The action key comprises a cylindrical rod and forms the bar of control crank, and this handlebar is vertical with cylindrical rod to be extended, and substantially is arranged in to comprise and moves the same plane of little bar of key.
The action key comprises in addition the relative cap piece of key is locked in Lock Part with this basic upright position of cap piece, this position is equivalent to the unlocked position of locking bolt, and but Lock Part comprises the sleeve of manual control, this sleeve is slidingly installed along the action key guide, also comprise the key pin that connects together with sleeve, and this key pin can be embedded in the opening of cap piece with sleeve, in order to make key lock in the latched position of its relative cap piece.
Cap piece is the lid of soil pipe inspection eye preferably.
Description of drawings
In the explanatory description of carrying out with reference to accompanying drawing below, will understand better the present invention, and more clearly understand other purpose of the present invention, feature, details and advantage, accompanying drawing is only as example shown one embodiment of the invention, wherein:
-Fig. 1 is the top view of support frame and blocked framework blank cap integral body according to the invention;
-Fig. 2 is the sectional drawing of Fig. 1 integral body in the horizontal plane that the locking bolt of cover lock on support frame passed through;
-Fig. 3 is the sectional drawing along Fig. 1 III-III line, and the expression key passes that lid inserts in order to locking bolt taken to its unlocked position;
-Fig. 4 is phantom drawing and along the sectional drawing of Fig. 1 IV-IV line, and the expression key is preparing to make locking bolt move to the position of its unlocked position;
-Fig. 5-the 9th, with the similar sectional drawing of Fig. 4, and the relative lid swing of expression key, until it makes the position of locking bolt release;
-Figure 10 is and the similar phantom drawing of Fig. 4 and sectional drawing, the expression key with the substantially vertical position of lid so that support frame lifts lid relatively.
The specific embodiment
With reference to accompanying drawing, reference number 1 expression forms road administration (voirie) device of soil pipe inspection eye, this device is preferably formed by cast iron, and comprises support frame 2 and at least one top cover or closing component 3, such as cover plate or the lid of the opening that stops up support frame 2 formation.
This inspection eye can be positioned on the public way, in order to arrive the inspection passage of underground passage.
Accompanying drawing represents, the road administration device comprises that global shape is the single top piece 3 of the lid formation of rectangle, and this lid can be given prominence to by its four at the peripheral wall 4 under the upper covering plane 3a of lid 3 and be embedded in mutually on thickness in four peripheral walls 5 of framework 2, in order to stop up the frame openings that four walls 5 form.
To see such as the back, and can lid 3 and framework 2 be broken away from by lifting.
The wall 4 of lid 3 has inclined outer surface, so that when lid 3 is in the position of this framework of sealing, respectively with the corresponding inclined inner surface splicing phase embedding of the wall 5 of framework 2.For lid 3 is separated with framework 2, only need apply pulling force at lid 3, lift lid 3, and make the respective inner surfaces relative sliding of the wall 5 of wall 4 external surfaces of lid 3 and framework 2.
Four sidewalls 5 of framework 2 are assembled mutually by one group of flange 6 and set bolt B, to consist of this framework.But four sidewalls 5 of framework 2 can form single cast iron part.
This locking device comprises the movable locking bolt 7 of installing, and locking bolt 7 is guided in lid 3 lower slider, and can cooperate with the locked groove 8 of framework 2, in order to lid 3 is locked in the framework.
The groove that locked groove 8 forms in can the wherein wall 5 by framework 2 consists of, to accept the free end of locking locking bolt 7.
As shown in Figure 2, locking bolt 7 can be embedded in the locked groove 8 of formation in relative framework 2 vertical walls 5 its free end along installing with the direction activity that wherein a vertical wall 4 is vertical of lid 3.But, locking bolt 7 can be along installing with these lid 3 another vertical walls or the direction activity vertical with of this lid or another transverse wall 4, and the free end of locking bolt 7 can be embedded in the locked groove 8 that forms in one or the other of two transverse walls of another vertical wall 5 of framework 2 or this framework.
What the covering plane 3a of lid 3 comprised the thickness that passes this cover-up surface and can make that key 9 arrives locking locking bolts 7 penetrates opening 10.
According to the present invention, the shape of the opening 10 of lid 3 can make key 9 by itself with the covering plane 3a vertical plane of lid 3 in swing drive locking bolt 7.
In case action key 9 also comprise unlocked position that locking bolt 7 is in it just can key lock with the parts of the basic upright position of cover-up surface 3a of lid 3.
These Lock Parts comprise the sleeve 15 that is slidingly installed along the bar 11 little gaps of key 9 and the key pin 16 that connects together along a part and the sleeve 15 of sleeve 15, and key pin 16 projects into beyond the lower limb that sleeve 15 is positioned at little bar 14 1 sides.Therefore, key pin 16 extends in parallel with the bar 11 of action key 9.Sleeve 5 is provided with and connects together with sleeve and by the control crank 17 that consists of from sleeve one side and the vertically extending bar of sleeve.As below seeing, handle 17 can make sleeve 15 and key pin 16 manually move to the latched position of action key 9 along bar 11.
Locking bolt 7 compressed helical springs 22 bring back to its latched position in locked groove 8, and spring 22 installed under prestressing are at the flat part 21 of locking bolt 7 and reinforce between the respective planes surface of rib 20, and axially are positioned at around the bar 18 of locking bolt 7.The width of the flat part 21 of locking bolt 7 is greater than the diameter of bar 18, with the crossette that reclines of the end convolution that forms spring 22.
Locking bolt 7 axially remains on lid 3 times, in case being used for lid 3 breaks away from framework 2 by the outer shroud 23 on the coaxial free end portion that is installed in bar 18, prevent that locking bolt 7 from deviating from from lid 3, the free end of bar 18 is outstanding from reinforcing rib 20 in a side opposite with spring 22, and stops bars 18 to move by pin 24.Therefore, when lid 3 complete and support frame 2 disengagings, and key 9 takes out and when not having key 9 from lid, and spring 22 is applied to power on the flat part 21 of locking bolt 7 and will encircle 23 and be blocked on the opposite plane surface of plane surface that reinforcing rib 20 and the respective end spiral of spring 22 recline.
The flat part 21 of locking bolt 7 passes the rectangular aperture 4a of lid 3 respective side walls 4, to guarantee that also guiding locking bolt 7 is in 3 times movements of lid.
The flat part 21 of locking bolt 7 comprises that centre-drilling hole 26 and two are positioned at that the circle of centre-drilling hole 26 2 sides or truncated cone shape chamfering 27 consist of penetrates eyelet 25.When entering for the opening 10 that passes lid 3 at key 9, eyelet 25 accepts the free end of the bar 11 of action key 9.
The shape of the opening 10 of lid 3 is used in addition guiding action key 9 and passes lid 3, and the free end 13 of guiding key enters the eyelet 25 of locking bolt 7, then drives locking bolt 7 by the swing of key 9 in opening 10.
The global shape that the opening 10 of lid 3 is seen above lid 3 is preferably rectangle, and the wall 4 of vertical top edge at two overlay planes 3a upper surface places that are positioned at lid 3 and the plane that reinforces rib 20 or the lid 3 that passes with locking bolt 7 extends in parallel.
Opening 10 comprises two respectively from the parallel-slope 28 of two top edges of this opening, and the thickness that they pass the cover-up surface 3a of lid 3 leads to lid below 3, on locking bolt 7.When key 9 passed the opening that is in the lid 3 that stops up framework 2 positions and enters, two inclined-planes 28 guaranteed the horizontal little bars 14 of guiding, and the free end 13 of guiding action key 9 enters into the eyelet 25 of locking bolt 7.The thickness of little bar 14 is slightly less than two distances between the inclined-plane 28, and the length of this little bar is slightly less than the length on these inclined-planes.
The inclined angle alpha on each inclined-plane 28 preferably equals the angle of inclination beta of chamfering 27 of the eyelet 25 of locking bolt 7 substantially.For example, inclined angle alpha and β can be approximately 50 °.
The opening 10 of lid 3 is included in eyelet or the groove 29 that passes through in the cover-up surface 3a thickness of lid 3 in addition, and eyelet or groove are vertical with inclined-plane 28, and from wherein vertical upside extension on an inclined-plane.Or rather, eyelet 29 extends from the inclined-plane of the sidewall 4 of opening 10 the most close lids 3, and locking bolt 7 is guided through sidewall 4 and is slidingly installed.Eyelet 29 leads to the space that forms between two inclined-planes 28 of opening 10 certainly, and this space can guide the little bar 14 of action key 9 to pass through.The effect of eyelet 29 is, once motion key 9 passes opening 10 and enters, and the bar 11 of action key 9 can swing in the plane vertical with the cover-up surface 3a of lid 3 itself.
At first, as shown in Figure 3, the operator catches action key 9, makes the end 13 of key 9 and two inclined-planes 28 that little bar 14 passes opening 10 in succession, the little bar 14 of inclined-plane 28 guiding, and then end 12 enters the eyelet 25 of locking bolt 7.
Fig. 4 partly shows by Fig. 3, then the end 13 of key 9 is subjected to the guiding of eyelet 25 circular upper chamfering 27 parts, then be subjected to the guiding of lower chamfering 27 parts to enter eyelet 25, and little bar 14 is under the cover-up surface 3a of lid 3, abut on the flat part 21 of locking bolt 7, then the bar 11 of key 9 tilts substantially to equal the inclined angle alpha of upper circular chamfering 27 of inclined-plane 28 or eyelet 25 or the angle of β.
Then Fig. 5,6 expression operators swing the clockwise direction of action key 9 relative these figure in the plane vertical with the coverage rate 3a of lid 3, the returning place force drive locking bolt 7 of free end 13 antagonistic springs 22 of key 9 is moved, make locked groove 8 disengagings of flat part 21 with the framework 2 of locking bolt 7, as shown in Figure 7.Eyelet 29 allows this to swing, and the appropriate section of the bar 11 of action key 9 can move in eyelet 29.
In the locking bolt 7 of Fig. 7 position from its locked groove 8 releases, the operator catches handle 17, in order to carry out the down sliding of sleeve 15 and key pin 16, until the part of sleeve 15 and key pin 16 enters in the opening that forms between the opposite end in the inclined-plane 28 that reinforces rib 20 1 sides and eyelet 29 and inclined-plane 28, as shown in Figure 8.
Fig. 9 represents that the integral body of sleeve 15 and key pin 16 is positioned at the extreme lower position of the bar 11 of relative action key 9, and in this position, the lower end of key pin 16 abuts on the flat part 21 of locking bolt 7.
Therefore, the integral body of sleeve 15 and key pin 16 will be moved key 9 safety lockings in it and the substantially vertical position of the coverage rate 3a of lid 3, and the little bar 14 of key 9 is positioned under the coverage rate 3a of lid certainly.The operator can apply pulling force by control crank 12 at action key 9 from the latched position of key 9 relative lids 3, in order to lift lid 3, and the support frame 2 of itself and it is broken away from fully.
In case lid 3 takes out fully from support frame 2, action key 9 relatively lid 3 remains locked in the position shown in Fig. 9,10, and in this position, locking bolt 7 remains on its unlocked position.Under these conditions, when the operator wished to make lid again to be in fastening position in the support frame 2, then the operator caught action key 9, in order to lift lid, and places it on the framework 2.Then, operator's loosening up key 9 is embedded in the wall 5 of framework 2 lid 3 by gravity, to stop up the opening of framework 2.Then, the operator catches handle 17, applies pulling force upwards at handle, and sleeve 15 is slided along the bar 11 of key 9, and sleeve 15 and key pin 16 are broken away from opening 10 and the eyelet 29 that is in position shown in Figure 7, therefore makes key 9 relative lid 3 releases.Then relative Fig. 5 of operator, 6 swings key 9 to counter clockwise direction, until a key 9 takes position shown in Figure 3 to, in this position, can take out keys along the slip on the inclined-plane 28 of the circular chamfering 27 of eyelet 25 and lid 3 from lid 3 by end 13 and little bar 14, therefore can make locking bolt 7 in the latched position of returning under the effect of spring 22 in its locked groove 8 at framework 2, in order to lid 3 is locked in the framework.
Make lid 3 in its fastening position in support frame 2 again in place another may be, make in advance the action key from lid 3 releases on the handle 17 by acting on, in order to take out sleeve 15 and key pin 16 from opening 10 and its eyelet 29, the action key is swung, until can take out from lid 3 as previously explained the position of key 9 fully in the plane vertical with the coverage rate 3a of lid 3.Then, the operator can be as required catches lid 3 by the suitable instrument at least one corresponding eyelet 30 that is embedded in lid 3, in order to lift lid 3, and places it on the support frame 2.Loosen lid 3, lid 3 drops in the framework 2 by gravity, and in this landing process, the respective side walls 5 of framework 2 applies the power of the returning place force promotion locking bolt 7 of antagonistic spring 22 at the free end of the flat part 21 of locking bolt 7, until this free end is relative with locked groove 8, this free end enters the final plant closure position of lid 3 in framework 2 in locked groove 8.Then lid 3 is by locking bolt 7 relative framework 2 lockings.
The locking and unlocking device recited above not only can be used for rectangular cap, also can be used for triangle or circular lid.
Above-described apparatus of the present invention not only structure are simple especially, and the operator can carry out lid is fixed on by the action simple swing of key in the plane vertical with the lid plane unlocking operation of the locking bolt in its support frame at an easy rate.In addition, the action key can be safely relatively lid 3 be locked in the position that locking bolt is remained on its unlocked position.
Claims (9)
1. at least one cap piece (3) is locked in the device of the upper and release of the support frame (2) of this part, this device comprises the movable locking bolt (7) of installing, locking bolt (7) is guided in cap piece (3) lower slider, and can cooperate with the locked groove (8) of support frame (2), in order to cap piece (3) is locked on the support frame (2), device also comprises locking bolt (7) the action key (9) that the opening (10) that can pass cap piece (3) enters, so that the returning place force of opposing compression helical spring (22) drives locking bolt (7) from latched position, spring (22) installed under prestressing is in the reinforcing of locking bolt (7) and cap piece (3) between the rib (22), make locking bolt (7) remain on latched position, opening (10) shape of cap piece (3) can make key (9) drive locking bolt (7) by this swing in the plane vertical with the plane of cap piece (3), and locking bolt (7) comprises and penetrates eyelet (25), when key (9) enters the opening (10) of cap piece (3), the end (13) of action key (9) can enter eyelet (25), this device is characterised in that, the shape of the opening (10) of cap piece (3) also is used for guiding action key (9) to pass this cap piece and passes through, and the end (13) of guiding action key (9) enters the eyelet (25) of locking bolt (7), and then the swing by action key (9) drives locking bolt (7).
2. device as claimed in claim 1, it is characterized in that, the opening (10) of cap piece (3) comprise parallel-slope (28) that two guiding action keys (9) are positioned near the horizontal little bar (14) the key end (13) with one of them vertical eyelet (29) on two inclined-planes (28), eyelet (29) can guide action key (9) to swing to the position that makes locking bolt (7) release, in this position, the little bar (14) of action key (9) is positioned under the cap piece (3), in order to can lift cap piece (3) by the relative support frame of pulling force (2) that applies at action key (9).
3. device as claimed in claim 2, it is characterized in that, the eyelet (25) of locking bolt (7) is included in the center that forms between two circular chamferings (27) and penetrates boring (26), the angle of slope of chamfering (27) equals to move the angle of slope of two lead-in chamfered (28) of key (9) substantially, so that also the end (13) of guiding action key (9) is passed boring (26) and entered.
4. such as the described device of one of claim 1-3, it is characterized in that, locking bolt (7) comprises the rod part (18) of passing interior reinforcing rib (20) and the flat lock part (21) of passing the wall (4) of cap piece (3), and return spring (22) is being reinforced between the flat lock part (21) of rib (20) and locking bolt (7) the coaxial rod that is installed in locking bolt (7) partly on (18).
5. such as the described device in one of claim 1 or 4, it is characterized in that, locking bolt (7) axially remains in the cap piece (3) its latched position by ring (23), the end of the rod part (18) of ring (23) and locking bolt (7) connects together, and the returning place force by spring (22) abuts on the surface of the surface opposite that the end convolution of reinforcing rib (20) and spring reclines.
6. such as one of above-mentioned claim described device, it is characterized in that, the eyelet that forms in the wall (5) of locked groove (8) by support frame (2) consists of.
7. such as the described device of one of claim 2-6, it is characterized in that, action key (9) comprises cylindrical rod (11) and forms the little bar (12) of control crank, handle (12) and the vertical extension of bar (11), and substantially be in the plane identical with the plane of the little bar (14) that comprises action key (9).
8. such as one of above-mentioned claim described device, it is characterized in that, action key (9) comprise with key (9) relatively cap piece (3) be locked in the substantially vertical position of this part and be equivalent to the parts of the unlocked position of locking bolt (7), and these parts comprise along action key (9) but sleeve (15) and the key pin (16) of the manual control that is slidingly installed, key pin (16) connects together with sleeve (15), and can be embedded in the opening (10) of cap piece (3) with sleeve (15), in order to action key (9) is locked in the latched position of relative cap piece (3).
9. such as one of above-mentioned claim described device, it is characterized in that, cap piece (3) is cover plate or the lid of soil pipe inspection eye.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1156008 | 2011-07-04 | ||
| FR1156008A FR2977619B1 (en) | 2011-07-04 | 2011-07-04 | DEVICE FOR LOCKING AND UNLOCKING AT LEAST ONE RECOVERY MEMBER ON A SUPPORT FRAME OF THIS MEMBER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102864980A true CN102864980A (en) | 2013-01-09 |
Family
ID=46320833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102294320A Pending CN102864980A (en) | 2011-07-04 | 2012-07-03 | Device for locking at least one covering element on supporting frame and unlocking from supporting frame |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2543800B1 (en) |
| CN (1) | CN102864980A (en) |
| ES (1) | ES2494794T3 (en) |
| FR (1) | FR2977619B1 (en) |
| PL (1) | PL2543800T3 (en) |
| PT (1) | PT2543800E (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154167A (en) * | 2016-05-24 | 2019-01-04 | 易捷艾玛公司 | It is a kind of that the device of locking and unlocking being carried out to the stopple on frame using key and this stopple can be automatically locked on frame without key |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11920381B2 (en) * | 2020-04-22 | 2024-03-05 | Channell Commercial Corporation | Shielded self-latching locking assembly for a utility vault |
| US11898375B2 (en) * | 2020-04-22 | 2024-02-13 | Channell Commercial Corporation | Shielded self-latching locking assembly for a utility vault |
| US20220325560A1 (en) * | 2021-04-13 | 2022-10-13 | Wutpool, Inc | Modular floor panel latching system |
| IT202100010874A1 (en) * | 2021-04-29 | 2022-10-29 | Fond Belli S R L | KEY/LOCK ASSEMBLY OF A ROAD MANHOLE MANHOLE |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466220Y (en) * | 2001-02-21 | 2001-12-19 | 刘冰洁 | Anti-theft manhole cover |
| DE20206811U1 (en) * | 2002-04-29 | 2002-08-22 | Beck, André, 74906 Bad Rappenau | Universal lifting key with fuse |
| US7216459B1 (en) * | 2003-07-02 | 2007-05-15 | Neenah Foundry Company | Access hatch cover assembly with lift-assist assembly and method therefor |
| CN101285360A (en) * | 2007-04-09 | 2008-10-15 | 徐向阳 | New pattern manhole cover lock |
| WO2009035349A2 (en) * | 2007-09-13 | 2009-03-19 | Sika Technology Limited | Improvements to closures for subsurface chambers |
| CN101624880A (en) * | 2009-07-28 | 2010-01-13 | 张先唐 | Well cover key |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1599509A (en) * | 1924-07-28 | 1926-09-14 | Anderson Steam Vulcanizer Comp | Manhole cover |
-
2011
- 2011-07-04 FR FR1156008A patent/FR2977619B1/en not_active Expired - Fee Related
-
2012
- 2012-06-29 EP EP12174270.4A patent/EP2543800B1/en not_active Not-in-force
- 2012-06-29 ES ES12174270.4T patent/ES2494794T3/en active Active
- 2012-06-29 PL PL12174270T patent/PL2543800T3/en unknown
- 2012-06-29 PT PT121742704T patent/PT2543800E/en unknown
- 2012-07-03 CN CN2012102294320A patent/CN102864980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466220Y (en) * | 2001-02-21 | 2001-12-19 | 刘冰洁 | Anti-theft manhole cover |
| DE20206811U1 (en) * | 2002-04-29 | 2002-08-22 | Beck, André, 74906 Bad Rappenau | Universal lifting key with fuse |
| US7216459B1 (en) * | 2003-07-02 | 2007-05-15 | Neenah Foundry Company | Access hatch cover assembly with lift-assist assembly and method therefor |
| CN101285360A (en) * | 2007-04-09 | 2008-10-15 | 徐向阳 | New pattern manhole cover lock |
| WO2009035349A2 (en) * | 2007-09-13 | 2009-03-19 | Sika Technology Limited | Improvements to closures for subsurface chambers |
| CN101624880A (en) * | 2009-07-28 | 2010-01-13 | 张先唐 | Well cover key |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154167A (en) * | 2016-05-24 | 2019-01-04 | 易捷艾玛公司 | It is a kind of that the device of locking and unlocking being carried out to the stopple on frame using key and this stopple can be automatically locked on frame without key |
| CN109154167B (en) * | 2016-05-24 | 2021-04-13 | 易捷艾玛公司 | Device for locking and unlocking hole plug on frame by key |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2543800B1 (en) | 2014-06-25 |
| FR2977619B1 (en) | 2013-11-22 |
| FR2977619A1 (en) | 2013-01-11 |
| ES2494794T3 (en) | 2014-09-16 |
| EP2543800A1 (en) | 2013-01-09 |
| PL2543800T3 (en) | 2014-11-28 |
| PT2543800E (en) | 2014-09-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20170721 |