CN108086360A - A kind of well lid and its unlocking apparatus of integral type anti-settling fall arrest - Google Patents
A kind of well lid and its unlocking apparatus of integral type anti-settling fall arrest Download PDFInfo
- Publication number
- CN108086360A CN108086360A CN201711393279.4A CN201711393279A CN108086360A CN 108086360 A CN108086360 A CN 108086360A CN 201711393279 A CN201711393279 A CN 201711393279A CN 108086360 A CN108086360 A CN 108086360A
- Authority
- CN
- China
- Prior art keywords
- well lid
- cover
- integral type
- pedestal
- supporting rod
- 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.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003780 insertion Methods 0.000 claims abstract description 9
- 230000037431 insertion Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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
- E02D29/127—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
- E02D29/1427—Locking devices
-
- 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
- E02D29/1481—Security devices, e.g. indicating unauthorised opening
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)
Abstract
The present invention relates to urban operating mechanism technical field, the more particularly to a kind of well lid and its unlocking apparatus of integral type anti-settling fall arrest.A kind of well lid of integral type anti-settling fall arrest, cover and pedestal including the connection that rotates, the inside of the cover are equipped with a pin lock, and the pedestal is equipped with boss, and an inner cover is also shelved on the pedestal, and outer ring and the boss of the inner cover support fixation.A kind of unlocking apparatus of well lid, for unlocking the pin lock in foregoing well lid, including supporting rod, turnable solution locking plate, the swingle arranged on supporting rod top for being connected to supporting rod bottom, the supporting rod is hollow, one push rod of insertion suitable for reading of the supporting rod, pushing the push rod can rotate solution locking plate.The present invention provides a kind of well lids and its unlocking apparatus simple in structure, integral type anti-settling fall arrest that can be effectively antitheft.
Description
Technical field
The present invention relates to urban operating mechanism technical field, the well lid of more particularly to a kind of integral type anti-settling fall arrest and its open
Locking device.
Background technology
Since well lid can be because the problem of many reasons are lost, when lacking well lid, pedestrian easily falls wellhole
It is unexpected, therefore existing well lid can be arranged inside an anti-drop net, but people also has occurred drop and hooked by anti-drop net after wellhole
Firmly it is not easy the danger got away.
Then the design of new fall arrest well lid is generated on the basis of anti-drop net, such as Chinese patent CN205369317U
Disclosed technology contents：A kind of novel anti-falling falls well lid, and including well seat and the cover to match with well seat, well seat inner wall, which is equipped with, to be used
In being equipped with anti-fall inner cover in the support frame of support cover, well seat, anti-fall interior cover is evenly equipped with multiple rotation lugs, and well seat inner wall can
The multiple supporting blocks of dismantling connection, supporting block is identical with rotation lug quantity, and strip hole is provided in supporting block, and strip hole one end is set
There is limit hole, the other end, which is equipped with, stretches out hole, and /V bore dia is corresponding to rotation lug diameter, stretches out bore dia and is more than rotation lug
Diameter.
Although above-mentioned technical proposal solves safety problem caused by original anti-drop net, but its anti-fall inner cover needs is multiple
Rotation lug is fixed, and installation and dismounting are inconvenient, and its well lid does not have safety device to be easily stolen robber.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of integral type anti-settling simple in structure, can be effectively antitheft and prevent
The well lid to fall.To achieve the above object, the technical solution adopted in the present invention is：
A kind of well lid of integral type anti-settling fall arrest, cover and pedestal including the connection that rotates are set on the inside of the cover
There is a pin lock, the pedestal is equipped with boss, and an inner cover is also shelved on the pedestal, and outer ring and the boss of the inner cover are supported admittedly
It is fixed.Shelving for inner cover sets the light installation that inner cover can be achieved and removes, can be according to actual use situation periodic replacement or clear
Inner cover is washed, it is simple and convenient.
On the basis of using above technical scheme, the present invention can also use scheme further below：
The pin lock is fixed on the inside of cover by a connecting piece, and the pin lock includes screw rod and the top on screw rod
Compression bar, the screw rod pass through the retainer plate being arranged in connection sheet to be fixed in connection sheet, and the screw rod is in compression bar and retainer plate
Between be arranged with spring；The connection sheet offers the lockhole through cover in front of compression bar.The setting of pin lock not only may be used
To ensure that cover will not lose, and pin lock is equipped with spring this resetting structure, can easily lock cover and pedestal,
It can easily unlock, it is easy to operate.
The pedestal offers fixing groove, and mounting base is equipped in the fixing groove, is fixed with connecting plate on the inside of the cover, institute
Connecting plate is stated to be connected with mounting base by a connecting seat.
The connecting seat is plugged in mounting base, and the both sides of the connecting seat upper end are respectively equipped with fixed block, and fixed block opens up
There is a through hole, the both sides of the connection front edge of board are equipped with bolt, and the through hole of bolt insertion fixed block is so that connecting plate can be compared with
Connecting seat rotates.
The mounting base sets there are two and is individually fixed in the both sides of fixing groove, which is to offer the column of slot
Body；The stiffening piece of protrusion is additionally provided with below the connecting seat, stiffening piece can mutually be fixed by bolt with pedestal.Mounting base is set
The buffering and fixation played between connecting seat and pedestal is put, due to that can relatively rotate between connecting plate and connecting seat,
Mounting base is that connecting seat when rotating provides /V fixation, is ensured steady with connecting seat during lid conjunction in opening for cover
Surely will not move.
The connecting pin of the connecting seat and cover is further fixed on a fastener, and chimb, card are equipped with above the boss of the pedestal
Part can be fixed with chimb.The fastener is the laminated structure of two foldings, wherein, a bending angle is 90 °, another bending angle
Degree is more than 90 ° and is less than 180 °.When cover cap closes, fastener can engage with the chimb of pedestal, be further ensured that cover lid close after with
Firmness between pedestal；Meanwhile setting of the bending angle between 90 ° and 180 ° is for the fastener energy when cover is opened
It is enough to be disengaged at chimb.
The cover can be dug to the state for pedestal being in 180 °.
The inner cover is a cover to concave from the outer ring of inner cover, and cover is made of bottom surface and inclined side wall.
The side wall opens up the installation opening through outer ring, and at least one bent protrusion is additionally provided on side wall, the song protrusion
Upper end is equal with outer ring, and lower end is connected with bottom surface.The setting of bent protrusion be in order to ensure rain or carry out road cleaning when,
Current can be flowed down successfully along side wall.
The bottom surface is equipped with the cross supporting rib to raise up, and the center intersection of supporting rib is equipped with four water conservancy diversion
Slot, since the protrusion and cross of supporting rib are set so that bottom surface and the junction of side wall form petal curl.Due to usually
Road surface has the impurity such as soil, rubble unavoidably, can bring impurity into well lid together into when raining or Street surface cleaning, supporting rib
With curl can mating reaction impurity will not be accumulated on side wall and bottom surface, it is ensured that impurity can be flowed down along current and is discharged into
In well.
Further, part of the bottom surface in addition to supporting rib is horizontal plane, and the horizontal plane is additionally provided with close to side-walls
Osculum, osculum are that space is provided in current access wall.
Further, the present invention also provides following technical schemes：
A kind of unlocking apparatus of well lid for unlocking the pin lock in foregoing well lid, including supporting rod, is turnably connected to branch
Solution locking plate, the swingle arranged on supporting rod top of strut bottom, the supporting rod is hollow, and the insertion suitable for reading one of the supporting rod pushes away
Bar, pushing the push rod can rotate solution locking plate.
The middle part of the solution locking plate is connected by a rotation axis with the lower part of supporting rod, and the solution locking plate is strip, should
The one side of strip is two right angles, and the opposite side of strip is a circular arc.
The hollow bulb of the supporting rod is equipped with internal thread, and the push rod is equipped with external screw thread, spiral shell between push rod and supporting rod
Line connects；The top of the push rod is additionally provided with rotating handle.
In use, unlocking apparatus is inserted into lockhole, push rod is pushed and so that vertical state switchs to transverse direction to solution locking plate again, so
Rotary supporting rod can will promote compression bar so as to which screw rod be driven to move up compression spring afterwards, so as to fulfill between cover and pedestal
Unlock.
It is an advantage of the invention that：Traditional anti-drop net is substituted using the frivolous inner cover of high-mechanic, and inner cover is simply shelved
In on pedestal, it is convenient not only to install and replace, but also the dangerous generation that people can be avoided to fall.Meanwhile pin lock is filled with unlocking
The special setting put can be effectively prevented cover and be opened by other people, under the premise of ensureing to unlock easily well lid be avoided to be stolen.
Description of the drawings
Fig. 1 is a kind of well lid of integral type anti-settling fall arrest of the present invention and its lid conjunction state figure of unlocking apparatus.
Fig. 2 is a kind of well lid of integral type anti-settling fall arrest of the present invention and its opening figure of unlocking apparatus.
Fig. 3 is a kind of well lid of integral type anti-settling fall arrest of the present invention and its side view of unlocking apparatus.
Fig. 4 is that a kind of well lid of integral type anti-settling fall arrest of the present invention and its cover of unlocking apparatus are connected knot with pedestal
Structure schematic diagram.
Fig. 5 is the connecting base structure signal of the well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention
Figure.
Fig. 6 is the connecting board structure signal of the well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention
Figure.
Fig. 7 is the latch pin lock structure signal of the well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention
Figure.
Fig. 8 is a kind of well lid of integral type anti-settling fall arrest of the present invention and its inner cover structure schematic diagram of unlocking apparatus.
Fig. 9 is shape before the unlocking apparatus insertion of the well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention
State schematic diagram.
After unlocking apparatus insertions of the Figure 10 for the well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention
View.
Wherein, cover 1, pedestal 2, boss 21, fixing groove 22, chimb 23, inner cover 3, outer ring 31, bottom surface 32, supporting rib
321, diversion trench 322, curl 323, side wall 33, installation opening 331, bent protrusion 332, osculum 333, connection sheet 41, screw rod 42, top
Compression bar 43, retainer plate 44, spring 45, lockhole 46, mounting base 5, connecting plate 6, bolt 61, connecting seat 7, fixed block 71, through hole 72,
Stiffening piece 73, fastener 8, supporting rod 91 solve locking plate 92, swingle 93, push rod 94, rotating handle 95.
Specific embodiment
The well lid and its unlocking apparatus of a kind of integral type anti-settling fall arrest of the present invention are made below in conjunction with attached drawing further
It illustrates.
As shown in figs. 1-7, a kind of well lid of integral type anti-settling fall arrest, cover 1 and pedestal including the connection that rotates
2, cover 1 can be dug to the state for pedestal 2 being in 180 °.
The inside of cover 1 is equipped with a pin lock, and pin lock is fixed on the inside of cover 1 by a connecting piece 41.Wherein, insert
Lock includes screw rod 42 and the compression bar 43 on screw rod 42, and screw rod 42 passes through the retainer plate 44 being arranged in connection sheet 41 to fix
In in connection sheet 41, screw rod 42 is arranged with spring 45 between compression bar 43 and retainer plate 44.In order to facilitate unlock, connection sheet 41
The lockhole 46 through cover 1 is offered in 43 front of compression bar.
Pedestal 2 is equipped with boss 21, and an inner cover 3 is also shelved on the pedestal 2, and outer ring 31 and the boss 21 of inner cover 3 are supported admittedly
It is fixed.Wherein, pedestal 2 offers fixing groove 22, and mounting base 5 is equipped in the fixing groove 22, and 1 inside of cover is fixed with connecting plate 6, even
Fishplate bar 6 is connected by a connecting seat 7 with mounting base 5.It can be bolted to connection between connecting plate 6 and cover 1, be torn open with facilitating
It unloads.
Further, the both sides of 7 upper end of connecting seat are respectively equipped with fixed block 71, and fixed block 71 offers through hole 72, connection
The both sides of 6 front end of plate are equipped with bolt 61, and the through hole 72 of the bolt 61 insertion fixed block 71 is so that connecting plate 6 can be compared with connecting seat
7 rotate.
Further, mounting base 5 sets there are two and is individually fixed in the both sides of fixing groove 22, which is to offer
The cylinder of slot, connecting seat can be inserted into fixed in the slot of two mounting bases 5.
Further, the lower section of connecting seat 7 is additionally provided with the stiffening piece 73 of protrusion, and stiffening piece 73 can pass through bolt and pedestal 2
It is mutually fixed.
The connecting pin of one ground of progress, connecting seat 7 and cover 1 is further fixed on a fastener 8, and 21 top of boss of pedestal 2 is equipped with
Chimb 23, fastener 8 can be fixed with chimb 23.Wherein, fastener 8 is the laminated structure of two foldings, wherein, a bending angle is
90 °, another bending angle is more than 90 ° and is less than 180 °.
As shown in figure 8, inner cover 3 is a cover to concave from the outer ring of inner cover 3 31, cover is by bottom surface 32 and inclined side
Wall 33 forms.
Wherein, opened up on side wall 33 there are two the installation opening 331 for running through outer ring 31, two installation openings 331 are oppositely arranged.By
Be in contact in installation opening 331 with pedestal 2 and cover 1, in order to increase the intensity of installation opening 331, the opening's edge of installation opening 331 thicken and
Externally protrude out in side wall 33.
Further, set on side wall 33 there are six bent protrusion 332, the upper end of bent protrusion 332 is equal with outer ring 31 and lower end
It is connected with bottom surface 32, bent protrusion 332 is arc convex, and raised radian is 90 °, and the setting of this radian can not only make song
Reinforcing rib is played the role of in protrusion, to increase the firmness of inner cover 3, and can be by the rainwater for being mixed with the impurity such as soil of inflow
It is shunted from the both sides of bent protrusion 332, ensures the smooth excretion of rainwater.Wherein, the both sides of two installation openings 331 are respectively equipped with one
A song protrusion 332, is oppositely arranged in the side wall of 90 ° of angles that there are one bent protrusions 332 with installation opening 331 respectively.
Further, bottom surface 32 is equipped with the cross supporting rib 321 to raise up, the center intersection of supporting rib 321
Equipped with four diversion trenches 322, since the protrusion and cross of supporting rib 321 are set so that bottom surface 32 and the junction of side wall 33
Petal curl 323 is formed, the setting of curl 323 can reduce accumulation of the impurity such as soil on inner cover 3, in the punching of rainy or road surface
The impurity on inner cover 3 can be discharged into along current in well well during water.
Further, part of the bottom surface 32 in addition to supporting rib 321 is horizontal plane, in horizontal plane by being additionally provided at proximal wall 33
Osculum 333, osculum 333 are provided close at the lower end of bent protrusion 332, can be coordinated preferably to impurity, water with bent protrusion 332
Stream is drained.
Further, the raised radian of supporting rib 321 is 135 °, will not be accumulated on supporting rib 321 during raised radian herein
The impurity such as mud, rubble, current also can successfully flow into osculum 333 from supporting rib 321, and drainage effect is optimal.
As shown in figs. 9-10, a kind of unlocking apparatus of well lid, for unlocking the pin lock in foregoing well lid, including supporting rod
91st, turnable solution locking plate 92, the swingle 93 arranged on 91 top of supporting rod for being connected to 91 bottom of supporting rod.Wherein, support
Bar 91 is hollow, one push rod 94 of insertion suitable for reading of the supporting rod 91, and pushing push rod 94 can rotate solution locking plate 92.
The part rotated can be promoted on solution locking plate 92, since the middle part of solution locking plate 92 passes through a rotation axis and supporting rod
91 lower part is connected, and solves locking plate 92 as strip, and the one side of the strip is two right angles, and the opposite side of strip is a circle
Arc.When solving 92 vertical state of locking plate, due to the weight of the weight ratio circular arc of that side of two right angles, two right angle under gravity
Side downward, circular arc side upward, with moving down for push rod 94, the circular arc side of 94 gradual top pressure solution locking plate 92 of push rod, due to pushing away
The comprehensive function of power and arc structure, solution locking plate 92 by vertical state rotatably until become horizontality.
Further, the hollow bulb of supporting rod 91 is equipped with internal thread, and push rod 94 is equipped with external screw thread, push rod 94 and supporting rod
It is threadedly coupled between 91.
Further, for convenience of the rotation of push rod 94, top is additionally provided with rotating handle 95.
The present invention carries out disclosure with reference to embodiment, but those skilled in the art are not being departed from disclosure of the invention
Hold, under the interest field of embodiment, the protection model of the present invention is still fallen within to the change on the various forms and details of the present invention
It encloses.
Claims (10)
1. a kind of well lid of integral type anti-settling fall arrest, cover and pedestal including the connection that rotates, it is characterised in that described
The inside of cover is equipped with a pin lock, and the pedestal is equipped with boss, an inner cover, the outer ring of the inner cover are also shelved on the pedestal
Fixation is supported with boss.
2. the well lid of a kind of integral type anti-settling fall arrest according to claim 1, it is characterised in that the pin lock leads to
The inside that a connecting piece is fixed on cover is crossed, the pin lock includes screw rod and the compression bar on screw rod, and the screw rod is worn
The retainer plate crossed in connection sheet is fixed in connection sheet, and the screw rod is arranged with spring between compression bar and retainer plate；
The connection sheet offers the lockhole through cover in front of compression bar.
3. the well lid of a kind of integral type anti-settling fall arrest according to claim 1, it is characterised in that the pedestal opens up
There is fixing groove, mounting base is equipped in the fixing groove, is fixed with connecting plate on the inside of the cover, the connecting plate passes through a connecting seat
It is connected with mounting base.
4. the well lid of a kind of integral type anti-settling fall arrest according to claim 3, it is characterised in that the connecting seat is inserted
It is connected in mounting base, the both sides of the connecting seat upper end are respectively equipped with fixed block, and fixed block offers through hole, the connection front edge of board
Both sides be equipped with bolt, the bolt insertion fixed block through hole so that connecting plate can be rotated compared with connecting seat.
5. the well lid of a kind of integral type anti-settling fall arrest according to claim 4, it is characterised in that the mounting base is set
There are two and be individually fixed in the both sides of fixing groove, which is to offer the cylinder of slot；The lower section of the connecting seat is also
Stiffening piece equipped with protrusion, stiffening piece can mutually be fixed by bolt with pedestal.
6. a kind of well lid of integral type anti-settling fall arrest according to claim 4, it is characterised in that the connecting seat with
The connecting pin of cover is further fixed on a fastener, is equipped with chimb above the boss of the pedestal, fastener can be fixed with chimb.
7. the well lid of a kind of integral type anti-settling fall arrest according to claim 1, it is characterised in that the cover can be turned over
It rises to the state for pedestal being in 180 °.
8. a kind of unlocking apparatus of well lid, for unlocking the pin lock in well lid described in foregoing 1-7 any one claim,
It is characterized in that including supporting rod, turnable solution locking plate, the swingle arranged on supporting rod top for being connected to supporting rod bottom, institute
State that supporting rod is hollow, one push rod of insertion suitable for reading of the supporting rod, pushing the push rod can rotate solution locking plate.
9. the unlocking apparatus of a kind of well lid according to claim 8, it is characterised in that the middle part of the solution locking plate passes through one
Rotation axis is connected with the lower part of supporting rod, and the solution locking plate is strip, and the one side of the strip is two right angles, strip
Opposite side is a circular arc.
10. the unlocking apparatus of a kind of well lid according to claim 8, it is characterised in that the hollow bulb of the supporting rod is equipped with
Internal thread, the push rod are equipped with external screw thread, are threadedly coupled between push rod and supporting rod；The top of the push rod is additionally provided with rotation
Handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393279.4A CN108086360B (en) | 2017-12-21 | 2017-12-21 | Integrated anti-sedimentation anti-falling well lid and unlocking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393279.4A CN108086360B (en) | 2017-12-21 | 2017-12-21 | Integrated anti-sedimentation anti-falling well lid and unlocking device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108086360A true CN108086360A (en) | 2018-05-29 |
| CN108086360B CN108086360B (en) | 2023-11-10 |
Family
ID=62177827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711393279.4A Active CN108086360B (en) | 2017-12-21 | 2017-12-21 | Integrated anti-sedimentation anti-falling well lid and unlocking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086360B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529803A (en) * | 2021-06-30 | 2021-10-22 | 盐城三山道路设施有限公司 | Intelligent well lid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204125970U (en) * | 2014-05-29 | 2015-01-28 | 国家电网公司 | A kind of anti-stealing manhole cover |
| WO2015192405A1 (en) * | 2014-06-17 | 2015-12-23 | 田艺儿 | Fall arrest well cover having weight-bearing rods |
| CN208121817U (en) * | 2017-12-21 | 2018-11-20 | 杭州金盟道路设施有限公司 | A kind of well lid and its unlocking apparatus of integral type anti-settling fall arrest |
-
2017
- 2017-12-21 CN CN201711393279.4A patent/CN108086360B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204125970U (en) * | 2014-05-29 | 2015-01-28 | 国家电网公司 | A kind of anti-stealing manhole cover |
| WO2015192405A1 (en) * | 2014-06-17 | 2015-12-23 | 田艺儿 | Fall arrest well cover having weight-bearing rods |
| CN208121817U (en) * | 2017-12-21 | 2018-11-20 | 杭州金盟道路设施有限公司 | A kind of well lid and its unlocking apparatus of integral type anti-settling fall arrest |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529803A (en) * | 2021-06-30 | 2021-10-22 | 盐城三山道路设施有限公司 | Intelligent well lid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108086360B (en) | 2023-11-10 |
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