CN115126000B - Well lid for municipal maintenance - Google Patents

Well lid for municipal maintenance Download PDF

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Publication number
CN115126000B
CN115126000B CN202210846428.2A CN202210846428A CN115126000B CN 115126000 B CN115126000 B CN 115126000B CN 202210846428 A CN202210846428 A CN 202210846428A CN 115126000 B CN115126000 B CN 115126000B
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China
Prior art keywords
baffle
cover body
lid
rod
stop
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CN202210846428.2A
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Chinese (zh)
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CN115126000A (en
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石储滕
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Individual
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Priority to CN202210846428.2A priority Critical patent/CN115126000B/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (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)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)

Abstract

The invention discloses a well lid for municipal maintenance, which comprises a supporting seat, a cover body, a water outlet, a water drain and a locking cover, wherein the top end of the supporting seat is detachably connected with the cover body through a groove, the water outlet and the water drain are both arranged on the upper surface of the cover body, the upper surface of the cover body is rotatably connected with the locking cover through a through hole, and a filtering mechanism is arranged at the bottom of the locking cover. This well lid for municipal maintenance, through the effect of protection frame and filter screen, can stop the article that drops through the outlet accident, make article stop on the baffle, can make the staff in time open the lid and withdraw the valuables on the baffle, combine the cooperation between spout and the gag lever post, when the staff opens the lid, rotate earlier and lock the lid and carry out spacingly to the baffle through being connected between spout and the gag lever post, avoid to mention the in-process baffle unexpected whereabouts of lid as far as possible and make the decontamination hole break away from the protection frame and lead to valuables to drop to the well through the decontamination hole.

Description

Well lid for municipal maintenance
Technical Field
The invention relates to the technical field of well covers, in particular to a well cover for municipal maintenance.
Background
The well lid has wide application in industries such as flood control, drainage, power supply, heat supply, telecommunication, etc., and the well lid is various, and the well lid can be divided into metal well lid, high strength fiber cement concrete well lid, resin well lid etc. according to the material, generally adopts circularly.
Most of the existing well covers are simply covered on the well cover seat, when a pedestrian falls into the well due to accidents, the pedestrian is inconvenient to retrieve, economic loss is caused to the pedestrian, the well is easy to have odor, so that the water outlet is not too much, the well is easy to be blocked and the water outlet efficiency is poor when the well is drained in a rainy day, and the well cover has certain limitation in use.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the municipal maintenance well lid, which has the advantages of preventing falling objects, facilitating drainage, coping with emergency situations and the like, and solves the problems of loss caused by accidental falling of valuables and drainage influence under the condition of heavy rain.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a well lid for municipal maintenance, includes supporting seat, lid, outlet, water drain and locking lid, the top of supporting seat is through the groove and the lid detachable connection of seting up, outlet and water drain all are seting up at the upper surface of lid, the upper surface of lid is through the through-hole and the locking lid rotation of seting up and being connected, the bottom of locking lid is provided with filtering mechanism, the bottom of lid is through lifting mechanism and anti-falling mechanism connection;
the anti-falling mechanism comprises a baffle, a stop rod, a plug and a limit rod, wherein the stop rod is arranged on the upper surface of the baffle, the upper surface of the baffle is fixedly connected with the limit rod, the plug is fixedly connected to the top end of the stop rod, and the upper surface of the baffle is provided with a guide groove;
the outer surface of the locking cover is provided with two sliding grooves which can be matched with the limiting rods, and the two limiting rods are symmetrically arranged by taking the central line of the baffle plate as a symmetrical axis;
the inner wall of the water drain port is in contact connection with the outer surface of the plug, and the number of the stop rod, the plug and the water drain port is multiple;
the number of the stop rods, the plugs and the water discharge ports is eight, four of the eight stop rods are symmetrically arranged by taking the central line of the baffle as a symmetry axis, and four of the eight water discharge ports are symmetrically arranged by taking the central line of the cover body as a symmetry axis;
the lifting mechanism comprises a sleeve, a reset spring and a pull rod, wherein the lower surface of the sleeve is in sliding connection with the pull rod through a groove, and the reset spring is arranged in the sleeve and sleeved on the surface of the pull rod;
one end of the sleeve is fixedly connected to the lower surface of the cover body, the pull rod is fixedly connected to the upper surface of the baffle, the number of the sleeve and the number of the pull rod are two, and the two sleeves are symmetrically arranged by taking the central line of the cover body as a symmetrical axis;
the filter mechanism comprises a retaining frame which is connected with the bottom of the locking cover in a threaded manner, and a filter screen is arranged on the retaining frame;
the surface of the baffle is provided with a decontamination hole which can be matched with the retaining frame, and the baffle is sleeved on the surface of the retaining frame through the decontamination hole;
the support seat is provided with four reinforcing blocks, and two reinforcing blocks are symmetrically arranged by taking the central line of the support seat as a symmetrical axis.
(III) beneficial effects
Compared with the prior art, the invention provides the municipal maintenance well lid, which has the following beneficial effects:
1. according to the municipal maintenance well lid, through the functions of the retaining frame and the filter screen, articles which accidentally drop through the water outlet can be blocked, the articles are stopped on the baffle, a worker can timely open the lid to retract the valuables on the baffle, the cooperation between the sliding groove and the limiting rod is combined, when the worker opens the lid, the worker rotates the locking lid to limit the baffle through the connection between the sliding groove and the limiting rod, the situation that the baffle accidentally drops in the process of lifting the lid to enable the decontamination hole to be separated from the retaining frame to enable the valuables to drop into the well through the decontamination hole is avoided as much as possible, the locking lid is combined with the connection between the retaining frame, the retaining frame can be assembled and disassembled, and the filter screen with different fineness can be replaced conveniently by the worker according to requirements;
2. this well lid for municipal maintenance, through being connected between sleeve and the pull rod, under the circumstances that runs into heavy rain displacement is big, the rainwater is carried the silt and is fallen onto the baffle through the outlet, a small amount of silt is along with the rainwater sees through the filter screen and falls into the well, a large amount of silt then is kept somewhere on the baffle, after the baffle bears the silt of certain weight, the baffle is carried the pull rod and is fallen, make the scrubbing hole break away from the retainer, the rainwater is carried silt on the baffle and is fallen into the well through the scrubbing hole, the baffle is fallen and is driven the dead lever whereabouts, make the end cap break away from the water outlet, rainwater accessible water outlet falls onto the baffle, can effectually improve drainage efficiency, when silt on the baffle is little, through reset spring's effect, promote the pull rod and drive the baffle and rise to reset, make the baffle cover establish the surface at the retainer, thereby can be automatic clear up the baffle when raining.
Drawings
Fig. 1 is a schematic diagram of a well lid structure for municipal maintenance;
fig. 2 is a schematic diagram of a well lid supporting seat for municipal maintenance according to the invention;
fig. 3 is a schematic diagram of a well lid baffle plate for municipal maintenance;
fig. 4 is an enlarged schematic view of the structure of the position a in fig. 3 of the well lid for municipal maintenance;
fig. 5 is an enlarged schematic view of the structure of the position B in fig. 3 of the well lid for municipal maintenance.
In the figure: 1. a support base; 2. a cover body; 3. a water outlet; 4. a water discharge port; 5. a locking cover; 6. a baffle; 7. a stop lever; 8. a plug; 9. a limit rod; 10. a guide groove; 11. a chute; 12. a sleeve; 13. a return spring; 14. a pull rod; 15. a retaining rack; 16. a filter screen; 17. a reinforcing block; 18. dirt removing holes.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the anti-falling device comprises a supporting seat 1, a cover body 2, a water outlet 3, a water outlet 4 and a locking cover 5, wherein the top end of the supporting seat 1 is detachably connected with the cover body 2 through a groove which is formed, the water outlet 3 and the water outlet 4 are formed in the upper surface of the cover body 2, the upper surface of the cover body 2 is rotatably connected with the locking cover 5 through a through hole which is formed, the bottom of the locking cover 5 is provided with a filtering mechanism, the bottom of the cover body 2 is connected with an anti-falling mechanism through a lifting mechanism, the cover body 2 can be lifted and detached through the connection between the supporting seat 1 and the cover body 2, rainwater or road surface water can enter a well through the water outlet 3, the water outlet 3 is normally opened, but the water outlet 4 is not normally opened, the water outlet 3 is connected with the locking cover 5 through the connection between the cover body 2, the locking cover 5 can rotate in the cover body 2, objects which enter the well through the water outlet 3 can be filtered through the action of the filtering mechanism, the anti-falling mechanism can be reset through the action of the lifting mechanism, and the anti-falling mechanism can be prevented from falling down.
Example 2
According to embodiment 1, the anti-falling mechanism comprises a baffle 6, a stop rod 7, a plug 8 and a limit rod 9, wherein the stop rod 7 is arranged on the upper surface of the baffle 6, the upper surface of the baffle 6 is fixedly connected with the limit rod 9, the plug 8 is fixedly connected to the top end of the stop rod 7, a guide groove 10 is formed in the upper surface of the baffle 6, the baffle 6 can drive the stop rod 7 to lift through the connection between the baffle 6 and the stop rod 7, the stop rod 7 can drive the plug 8 to lift through the connection between the stop rod 7 and the plug 8, the baffle 6 can drive the limit rod 9 to act through the connection between the baffle 6 and the limit rod 9, drainage can be assisted through the effect of the guide groove 10, falling objects can be prevented from directly falling into a well through the effect of the baffle 6, and loss is caused to personnel accidentally dropping valuable articles.
In this embodiment, as an alternative, the guide groove 10 may be formed into a thread shape, and the quick drainage is matched, so as to reduce the blocking probability, and meanwhile, the bottom of the baffle 6 may be provided with the filter screen 16, so that the same effect can be achieved, and in the case of large rainwater, the baffle 6 may also be assisted in drainage due to the falling of gravity.
Example 3
According to embodiment 2, the outer surface of locking lid 5 has offered the spout 11 that can with gag lever post 9 complex, and gag lever post 9 is two with the quantity of spout 11, and two gag lever posts 9 are symmetrical setting with the central line of baffle 6 as the symmetry axis, through the connection between spout 11 and gag lever post 9, rotates locking lid 5 and makes gag lever post 9 screw in spout 11 in, through the connection between gag lever post 9 and baffle 6, baffle 6 just does not fall by accident.
In this embodiment, as an alternative, the number of the limiting rods 9 and the sliding grooves 11 may be set to one, so that the cost may be reduced, the auxiliary limiting effect may be achieved, and the process of opening the sliding grooves 11 may be reduced.
Example 4
According to embodiment 3, the inner wall of the drain opening 4 is in contact connection with the outer surface of the plug 8, the number of the stop rod 7, the plug 8 and the drain opening 4 is multiple, the plug 8 can play a role in auxiliary sealing on the drain opening 4 through connection between the drain opening 4 and the plug 8, and meanwhile, the position of the baffle 6 can also be positioned in an auxiliary mode.
In this embodiment, as a preferred solution, the number of the stop rod 7, the plug 8 and the drain port 4 may be two, so as to avoid uneven stress, and the positions of the stop rod 7 and the drain port 4 correspond to each other.
In this embodiment, as a preferred solution, the number of the stop rods 7, the plugs 8 and the drain ports 4 may be three, and the three stop rods 7 are disposed at three corners of the equilateral triangle, so as to avoid uneven stress, and the positions of the stop rods 7 and the drain ports 4 correspond to each other.
In this embodiment, as a preferred solution, the number of the stop rods 7, the plugs 8 and the water drain ports 4 may be four, and the four stop rods 7 are arranged in a rectangular array, so as to avoid uneven stress, and meanwhile, the positions of the stop rods 7 and the water drain ports 4 correspond to each other, so that cost and operation trouble can be reduced.
In this embodiment, as an alternative, the drain opening 3 may be formed into an inverted trapezoid, so that the function of auxiliary sealing and positioning can be achieved as a block when rainwater is collected.
In this embodiment, as an alternative, the plug 8 may be removed, a retainer ring is added on the surface of the stop rod 7, and a sealing gasket is added on the retainer ring, so that the sealing effect is improved, and normal use is not affected.
Example 5
According to embodiment 4, the number of the stop bars 7, the plugs 8 and the water discharge ports 4 is eight, four of the eight stop bars 7 are symmetrically arranged by taking the central line of the baffle 6 as a symmetry axis, and four of the eight water discharge ports 4 are symmetrically arranged by taking the central line of the cover body 2 as a symmetry axis.
In this embodiment, as a preferred scheme, the number of the stop rod 7, the plug 8 and the drain port 4 is eight, so as to increase the discharge capacity of the drain water, be used for emergency when heavy rain comes, and improve the auxiliary drainage effect.
Example 6
According to embodiment 5, the lifting mechanism comprises a sleeve 12, a return spring 13 and a pull rod 14, wherein the lower surface of the sleeve 12 is in sliding connection with the pull rod 14 through a groove formed in the sleeve, the return spring 13 is arranged in the sleeve 12 and sleeved on the surface of the pull rod 14, one end of the sleeve 12 is fixedly connected to the lower surface of the cover body 2, the pull rod 14 is fixedly connected to the upper surface of the baffle 6, the number of the sleeve 12 and the number of the pull rod 14 are two, the two sleeves 12 are symmetrically arranged by taking the central line of the cover body 2 as a symmetrical axis, the pull rod 14 can vertically lift in the sleeve 12 through the connection between the sleeve 12 and the pull rod 14, the baffle 6 can drive the pull rod 14 to vertically lift through the connection between the cover body 2 and the sleeve 12, the cover body 2 can drive the sleeve 12 to vertically lift, and the return spring 13 can push the pull rod 14 to drive the baffle 6 to lift and reset through the action of the return spring 13 when gravity on the baffle 6 is lowered.
In this embodiment, as an alternative, the sleeve 12 may be provided as two detachable parts, so that the return spring 13 may be replaced, thereby avoiding the long-term use of the return spring 13 from rusting to affect the use of staff.
In this embodiment, as an alternative, the pull rod 14 may be removed, the return spring 13 is sleeved on the stop rod 7, so that the sleeve 12 is slidably connected with the stop rod 7, the same effect can be achieved, and the material consumption is reduced, however, the number of the stop rods 7 is tested, and when the number of the return springs 13 is too large, sediment on the baffle 6 needs to be enough to enable the baffle 6 to descend, so that the emergency situation is easy to be affected.
Example 7
According to embodiment 6, filtering mechanism is including threaded connection at the baoding frame 15 of locking lid 5 bottom, is provided with filter screen 16 on the baoding frame 15, through the connection between baoding frame 15 and the locking lid 5, can install or dismantle baoding frame 15, through the effect of filter screen 16, can filter the article that gets into lid 2 through outlet 3, avoids article accident to fall to cause the loss.
In this embodiment, as a preferable scheme, the filter screen 16 can be replaced by detaching the retaining frame 15, and the filter screens 16 with different fineness can be replaced according to actual use, so that the practicability and the application range are improved.
In this embodiment, as an alternative, the surface of the fixing frame 15 may be sleeved with a filter ring, the lower surface of the filter ring is connected with the baffle 6 through a vertical rod, and when the baffle 6 descends, the filter ring may be driven by the vertical rod to descend, so that the filter ring may directly clean the contaminants attached to the fixing frame 15.
Example 8
According to embodiment 7, the surface of baffle 6 has seted up the dirt removal hole 18 that can cooperate with the baoding frame 15, and baffle 6 passes through dirt removal hole 18 cover to be established on the surface of baoding frame 15, through the connection between dirt removal hole 18 and the baoding frame 15, and baffle 6 can carry out vertical lift on the surface of baoding frame 15.
In this embodiment, as an alternative, a bump may be added on the surface of the retaining frame 15, a groove that can be matched with the bump may be formed on the inner wall of the decontamination hole 18, and the further limit baffle 6 may not rotate, and meanwhile, a certain stability may be improved, and accidental rotation loosening of the retaining frame 15 may be avoided.
In this embodiment, alternatively, a certain arc may be formed on the baffle 6, so that water can flow out through the dirt removing holes 18 more conveniently.
Example 9
According to embodiment 1, the supporting seat 1 is provided with four reinforcing blocks 17, two reinforcing blocks 17 are symmetrically arranged by taking the central line of the supporting seat 1 as a symmetry axis, and the supporting seat 1 can be enhanced in certain strength and service life through the rapid reinforcement.
In this embodiment, as an alternative scheme, a movable rod can be hinged to the lower surface of the cover body 2, a connecting sleeve is sleeved on the surface of the movable rod, a spring is arranged on the inner bottom wall of the connecting sleeve, the other end of the spring is in contact connection with the movable rod, a clamping groove is formed in the inner wall of the supporting seat 1, one end, away from the movable rod, of the connecting sleeve can be matched and clamped with the clamping groove, and therefore an auxiliary supporting and buffering bracket is formed, and vibration force can be absorbed when vibration force exists.
To sum up, this well lid for municipal maintenance, when using, place lid 2 on supporting seat 1, do not have the deposit on the baffle 6 this moment, rotate locking lid 5 and gag lever post 9 cooperation and carry out spacingly to the position of baffle 6, when the valuables that have accidentally dropped by the pedestrian just drops through outlet 3, guard 15 and filter screen 16 can keep falling object on baffle 6 and can not continue to fall to the downthehole, at this moment can mention lid 2 through outlet 3 and lift up the lid 2 after taking up the thing that will drop from baffle 6, also can not rotate locking lid 5 use, can retract when finding to drop object, when there is the ponding on the road surface, ponding accessible outlet 3 gets into the downhole, when meetting heavy rain, the rainwater is followed silt and is got into through outlet 3, the rainwater is passed through filter screen 16 and is fallen into the downhole, after the silt is piled up to a certain degree, baffle 6 drives down by stopper post 7, open drain 4 auxiliary drainage, simultaneously, dirt removal hole 18 keeps the surface of frame 15, carry out emergency drain, can take off silt on the downhole, also be washed off by the spring 13 when the silt on the downhole is washed down to the baffle 6, when the downhole is not enough to reset, the baffle 13 is washed down on the downhole.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. Well lid for municipal maintenance, its characterized in that: the anti-falling device comprises a supporting seat, a cover body, a water outlet, a water drain and a locking cover, wherein the top end of the supporting seat is detachably connected with the cover body through a groove formed in the supporting seat, the water outlet and the water drain are formed in the upper surface of the cover body, the upper surface of the cover body is rotationally connected with the locking cover through a through hole formed in the cover body, a filtering mechanism is arranged at the bottom of the locking cover, and the bottom of the cover body is connected with an anti-falling mechanism through a lifting mechanism;
the anti-falling mechanism comprises a baffle, a stop rod, a plug and a limit rod, wherein the stop rod is arranged on the upper surface of the baffle, the upper surface of the baffle is fixedly connected with the limit rod, the plug is fixedly connected to the top end of the stop rod, and the upper surface of the baffle is provided with a guide groove;
the outer surface of the locking cover is provided with two sliding grooves which can be matched with the limiting rods, and the two limiting rods are symmetrically arranged by taking the central line of the baffle plate as a symmetrical axis;
the inner wall of the water drain port is in contact connection with the outer surface of the plug, and the number of the stop rod, the plug and the water drain port is multiple;
the number of the stop rods, the plugs and the water discharge ports is eight, four of the eight stop rods are symmetrically arranged by taking the central line of the baffle as a symmetry axis, and four of the eight water discharge ports are symmetrically arranged by taking the central line of the cover body as a symmetry axis;
the lifting mechanism comprises a sleeve, a reset spring and a pull rod, wherein the lower surface of the sleeve is in sliding connection with the pull rod through a groove, and the reset spring is arranged in the sleeve and sleeved on the surface of the pull rod;
one end of the sleeve is fixedly connected to the lower surface of the cover body, the pull rod is fixedly connected to the upper surface of the baffle, the number of the sleeve and the number of the pull rod are two, and the two sleeves are symmetrically arranged by taking the central line of the cover body as a symmetrical axis;
the filter mechanism comprises a retaining frame which is connected with the bottom of the locking cover in a threaded manner, and a filter screen is arranged on the retaining frame;
the surface of the baffle is provided with a decontamination hole which can be matched with the retaining frame, and the baffle is sleeved on the surface of the retaining frame through the decontamination hole;
the support seat is provided with four reinforcing blocks, and two reinforcing blocks are symmetrically arranged by taking the central line of the support seat as a symmetrical axis.
CN202210846428.2A 2022-07-19 2022-07-19 Well lid for municipal maintenance Active CN115126000B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210846428.2A CN115126000B (en) 2022-07-19 2022-07-19 Well lid for municipal maintenance

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Application Number Priority Date Filing Date Title
CN202210846428.2A CN115126000B (en) 2022-07-19 2022-07-19 Well lid for municipal maintenance

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CN115126000A CN115126000A (en) 2022-09-30
CN115126000B true CN115126000B (en) 2024-02-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200300282Y1 (en) * 2002-09-16 2003-01-14 최종태 Filtration device for manhole
CN206706967U (en) * 2017-05-05 2017-12-05 国电大渡河沙坪水电建设有限公司 A kind of unidirectional blocking anti-overflow sump
CN212896467U (en) * 2020-05-19 2021-04-06 浙江鼎兴建设有限公司 Well lid structure
CN213572057U (en) * 2020-09-07 2021-06-29 李爱书 Can open municipal administration well lid automatically
CN113914437A (en) * 2021-10-31 2022-01-11 赵杭 Deodorant type well lid that municipal drainage pipe used
CN114134939A (en) * 2021-12-31 2022-03-04 威海泽庭新型建材有限公司 Resin-based high-polymer composite well lid and production process thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200300282Y1 (en) * 2002-09-16 2003-01-14 최종태 Filtration device for manhole
CN206706967U (en) * 2017-05-05 2017-12-05 国电大渡河沙坪水电建设有限公司 A kind of unidirectional blocking anti-overflow sump
CN212896467U (en) * 2020-05-19 2021-04-06 浙江鼎兴建设有限公司 Well lid structure
CN213572057U (en) * 2020-09-07 2021-06-29 李爱书 Can open municipal administration well lid automatically
CN113914437A (en) * 2021-10-31 2022-01-11 赵杭 Deodorant type well lid that municipal drainage pipe used
CN114134939A (en) * 2021-12-31 2022-03-04 威海泽庭新型建材有限公司 Resin-based high-polymer composite well lid and production process thereof

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