CN207228163U - A kind of liftable manhole lid device - Google Patents
A kind of liftable manhole lid device Download PDFInfo
- Publication number
- CN207228163U CN207228163U CN201721014140.XU CN201721014140U CN207228163U CN 207228163 U CN207228163 U CN 207228163U CN 201721014140 U CN201721014140 U CN 201721014140U CN 207228163 U CN207228163 U CN 207228163U
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- cylinder body
- piston
- well lid
- dust
- well
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- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- 238000006073 displacement reaction Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The utility model discloses a kind of liftable manhole lid device,Belong to well lid field,Well lid cannot timely be opened by solving,The problem of drainage effect is poor,Its key points of the technical solution are that including well seat and well lid,Well lid is circumferentially with several leakage holes,Well lid lower face is circumferentially with supporting rod,The one end of supporting rod away from well lid is equipped with reversing-gear,Reversing-gear is fixedly connected on the borehole wall,Dust-collecting bucket is equipped with below well lid,Dust-collecting bucket is circumferentially with connecting rod,The connection of connecting rod one end is connected with reversing-gear,Reversing-gear includes first piston,First cylinder body,Second piston and the second cylinder body,The inner cavity of first cylinder body is connected by the position of two close end with position of the inner cavity of the second cylinder body by two close end,Well seat is fixedly connected with the guide pipe that ponding is guided to dust-collecting bucket,Guide pipe is connected with leakage hole,The utility model is rational in infrastructure,Reach and more opened well lid in time,Improve its draining purpose.
Description
Technical field
A kind of well lid is the utility model is related to, more specifically, it relates to a kind of liftable manhole lid device.
Background technology
Town road manhole lid device is seen everywhere in the streets and lanes in each city.For the town road of sewer draining
Manhole lid device, under in the case of hurried heavy rain, the relatively low place of physical features, forms a large amount of ponding and cannot discharge in time, reaches
After certain depth, result in vehicle and cast anchor, the predicament that pedestrian can not plow.In order to can draining in time will in well lid be equipped with floating
Device, has a large amount of ponding to make to lift well lid using flotation gear on road surface, strengthens drainage effect.
At present, the Chinese utility model patent that notification number is CN204081046U discloses a kind of self-suspending and resets municipal administration
Manhole device, it includes being installed on the well seat of town road and the well lid being installed on well seat, and use is provided with below well lid
The hollow devices for lifting well lid when surface gathered water and the resetting structure with position-limiting action, if well lid is circumferentially uniformly provided with
Dry leakage hole.
But due to buoyancy be the pressure that is subject to by the object lower being immersed in liquid or gas and object lower by
To pressure differential and produce, well water is overflow to hollow devices when displacement is huge, make hollow devices lower end submerge when
Hollow devices can be floated and lift well lid；Road surface is set to have ponding in rainfall and when the water in well is not overflow to hollow devices, in
Empty device can not start effect, it is impossible to timely open well lid, drainage effect is poor.
Utility model content
In view of the deficienciess of the prior art, the utility model lies in that a kind of liftable manhole lid device is provided, this can rise
The manhole lid device of drop can more open well lid in time, improve its drainage effect.
To achieve the above object, the utility model provides following technical solution：A kind of liftable manhole lid device, including
The well lid for being installed on the well seat of town road and being adapted to well seat, the well lid are circumferentially with several leakage holes, the well lid
Lower face is circumferentially with some supporting rods, and the one end of the supporting rod away from well lid is equipped with reversing-gear, and the reversing-gear is consolidated
Surely it is connected on well seat inner wall, is equipped with dust-collecting bucket below the well lid, the dust-collecting bucket is circumferentially with some connectors, the company
The one end of fitting away from dust-collecting bucket is connected with reversing-gear, and the reversing-gear includes first piston, the set being connected with supporting rod
On first piston and in the first cylinder body of sealed set, the second piston being connected with connector and it is placed on second piston
On the second cylinder body, the inner cavity top of first cylinder body connects with the inner cavity top of the second cylinder body, first cylinder body it is interior
Bottom of chamber end is connected with the bottom of the second inner chamber of cylinder block, and the well seat is fixedly connected with the guide pipe that ponding is guided to dust-collecting bucket,
The guide pipe is connected with leakage hole.
By using above-mentioned technical proposal, the ponding on road surface flows into dust-collecting bucket by guide pipe, increases dust-collecting bucket weight,
Connector is pulled, second piston slide downward is driven by connector and extrudes the hydraulic oil below inner cavity, and hydraulic oil is subject to
Pressure flows in the first cylinder body from the second cylinder body and extrudes first piston, makes first piston upward sliding, is pushed away by first piston
Dynamic supporting rod moves up, and well lid is jacked up, and it is formed an annular opening between well seat, increases drainage effect, no
When needing to overflow in well to manhole lid device, well lid can be timely opened.
The utility model is further arranged to：The bottom of the barrel of catchmenting is equipped with some through holes.
By using above-mentioned technical proposal, when the speed that surface gathered water is flowed into dust-collecting bucket is more than water through hole from dust-collecting bucket
The weight of dust-collecting bucket could be increased during the speed of outflow, well lid could be lifted；Through hole can also be passed through after surface gathered water drains
Water in dust-collecting bucket is drained so as to reduce the weight of dust-collecting bucket, reset well lid.
The utility model is further arranged to：The area of the second piston is less than the area of first piston.
By using above-mentioned technical proposal, when second piston is downwardly applied to pressure, according to pascal's principle, hydraulic oil pair
The pressure that first piston applies is more than the pressure that second piston applies, and dust-collecting bucket more labour-saving is lifted well lid, can lift
The well lid of lifting capacity bigger, reduce have foreign matter and can not lift above well lid the occurrence of；Also the material of well lid is made have
More selections, to adapt to various road environments.
The utility model is further arranged to：Second cylinder body is placed in the first cylinder body, and second cylinder body is in both ends
The cylindrical shape of opening, second cylinder body and the first cylinder body are in be coaxially disposed, the first cylinder body top end face and the second cylinder body
Gap is left between top end face and between the first cylinder body bottom face and the bottom face of the second cylinder body, the first piston is nested with
Connected on the second cylinder body and with it in sliding, the inner wall of the first piston is bonded with the outer wall of the second cylinder body, the support
Support is circumferentially between bar and first piston and divides bar, the support divides the top inner wall that bar passes perpendicularly through the first cylinder body, described
Support divides the one end of bar away from first piston to support rod bending and is fixedly connected on supporting rod lower end.
By using above-mentioned technical proposal, make first piston and second piston in being coaxially disposed, so that at both stress
More stablize on same straight line, making reversing-gear stress.
The utility model is further arranged to：The support divides spring is arranged with bar, and the spring one end contacts at the
One cylinder body upper end inner wall, the other end contact at first piston upper surface.
By using above-mentioned technical proposal, when surface gathered water is from when reducing more, the water in dust-collecting bucket also increases, dust-collecting bucket
Weight increases, and the power increase for being subject to first piston, the power put on spring also increases, so that spring is increased by compression distance
Greatly, the slippage of first piston also increases, and then the height lifted of well lid also increases, and utilizes the linear change of the elastic force of spring
The characteristics of, there is manhole lid device and varied in weight according to dust-collecting bucket and well lid is lifted to different height, to adapt in various degree
Surface gathered water.
The utility model is further arranged to：Some through holes are uniformly arranged on the dust-collecting bucket sidewalls vertical direction.
By using above-mentioned technical proposal, when the water in dust-collecting bucket is more, the displacement of dust-collecting bucket is bigger, makes surface gathered water
Amount it is more, the weight of dust-collecting bucket is heavier, make manhole lid device have well lid is lifted different according to the difference of surface gathered water
Highly.
The utility model is further arranged to：The connector includes connecting rod and drag-line, the connecting rod upper end and the
Two pistons are fixedly connected, and the drag-line lower end is connected to dust-collecting bucket, and the drag-line upper end is connected with connecting rod lower end.
By using above-mentioned technical proposal, the rigid connection between pull rod and dust-collecting bucket is transformed into flexible connection, works as collection
When bucket is subject to water currents and rocks, reduce dust-collecting bucket and rock influence to reversing-gear.
The utility model is further arranged to：Guide pad, the guide pad are arranged with the supporting rod and connecting rod
It is fixedly connected on well seat inner wall.
By using above-mentioned technical proposal, influence of the horizontal external force to supporting rod and connecting rod is alleviated, alleviates branch
Strut and connecting rod make reversing-gear structure more firm stable because external force makes it tilt and increased frictional force.
The utility model is further arranged to：The well lid lower end is installed with flexible filter net, and the filter screen lower end is consolidated
Surely it is connected to well seat.
By using above-mentioned technical proposal, when well lid lifts, filter screen is formed in opening, reduces the impurity in ponding
Flow into deep-well, also using the flexibility of filter screen, alleviate the influence that filter screen resets well lid.
The utility model is further arranged to：The well lid upper end is equipped with the warning block floated during some submergences, the police
Show the drawstring that fixed warning block is equipped between block and well lid.
By using above-mentioned technical proposal, when surface gathered water, warning block can float, to vehicle and passerby to warn.
In conclusion the utility model has the advantages that：According to the difference of surface gathered water degree, by well lid lift to
Different height, to form different size of opening, changes displacement；There is reset capability after surface gathered water drains, structure is steady
It is fixed, with warning effect.
Brief description of the drawings
Fig. 1 is the profile that the present embodiment is used to show opening；
Fig. 2 is the profile that the present embodiment is used to show closure state；
Fig. 3 is the stereogram that the present embodiment is used to show well lid；
Fig. 4 is the structure diagram that the present embodiment is used to show reversing-gear；
Fig. 5 is the profile that the present embodiment is used to show reversing-gear.
Reference numeral：1st, well lid；11st, leakage hole；111st, filter；112nd, guide pipe；12nd, groove；13rd, warning block；
131st, drawstring；132nd, limited block；14th, filter screen；2nd, deep-well；3rd, well seat；31st, installation groove；32nd, guide pad；4th, dust-collecting bucket；
41st, through hole；42nd, drag-line；5th, reversing-gear；51st, the first cylinder body；52nd, first piston；53rd, supporting rod；531st, support divides bar；54、
Second cylinder body；55th, second piston；56th, connecting rod；57th, spring；58th, fixed link；59th, gap.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；In this practicality
In new description, it is to be understood that if thering is the orientation of the instructions such as term " on ", " under ", "left", "right" or the position relationship to be
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore retouched in attached drawing
State the term of position relationship only for illustration, it is impossible to the limitation to this patent is interpreted as, for the common skill of this area
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
A kind of liftable manhole lid device, as shown in Figure 1, including be fixedly connected on road well seat 3, be installed on well seat
Well lid 1 and the dust-collecting bucket 4 being connected to below well lid 1 on 3；Deep-well 2 wherein on well seat 3 and town road is in be coaxially disposed,
It is coaxially arranged with the installation groove 31 being adapted to well lid 1 on well seat 3, dust-collecting bucket 4 and well lid 1 are in being coaxially disposed and all between the two
To equipped with four reversing devices 5.
1 edge of well lid is circumferentially provided with four leakage holes 11, and filter 111 has been fixedly connected with leakage hole 11；Well lid 1
Lower section is equipped with the guide pipe 112 docked with leakage hole 11, and 112 lower end of guide pipe is bent to 4 direction of dust-collecting bucket, under guide pipe 112
The distance of end and 1 center line of well lid is slightly larger than the exterior radius of dust-collecting bucket 4.So set when surface gathered water is less, ponding leads to
Cross leakage hole 11 flow to guide pipe 112 flow velocity it is relatively slow, ponding is directly entered depth under 112 lower end vertical current of guide pipe
Without flowing into dust-collecting bucket 4 in well 2；When surface gathered water is more, speed that ponding is flowed out from guide pipe 112, current
Parabolically shape is so as to flow into dust-collecting bucket 4.
With reference to Fig. 3,1 upper surface of well lid is equipped with some grooves 12, and the floatable warning being adapted to it is equipped with groove 12
Block 13, the lower section of warning block 13 are fixedly connected with drawstring 131, and the other end of drawstring 131 through well lid 1 and is fixedly connected with limited block
132,12 bottom face of groove offers the perforation passed through for drawstring 131, and the gravity of limited block 132 is less than the buoyancy of warning block 13.
When there is ponding, warning block 13 floats, and with to passerby and vehicle, to warn, while limited block 132 contacts at 1 lower face of well lid, draws
Firmly drawstring 131, so as to prevent warning block 13 from floaing.
As shown in figs. 1 and 4, reversing-gear 5 is fixedly connected on 3 side wall of well seat, and reversing-gear 5 includes being fixedly connected on well
The supporting rod 53 of 1 lower face of lid, the connecting rod 56 for connecting dust-collecting bucket 4, the first cylinder body 51 and it is sheathed on 56 upper end of connecting rod
The second cylinder body 54.
With reference to Fig. 5, the second cylinder body 54 in both ends open straight-tube shape and be placed in inside the first cylinder body 51, the second cylinder body 54 with
First cylinder body 51 is in be coaxially disposed and the radius of the first cylinder body 51 is twice of radius of the second cylinder body 54, and the two of the second cylinder body 54
End face is held with the both ends end face of the first cylinder body 51 to leave gap 59 so that the first cylinder body 51 and the second cylinder body 54 connect, the first cylinder
Hydraulic oil is filled in 51 and second cylinder body 54 of body, 54 both ends of the second cylinder body are circumferentially with four be fixedly connected with the first cylinder body 51
Root fixed link 58, fixed link 58 are parallel with the axis of the second cylinder body 54.Sliding is connected with solid with connecting rod 56 in second cylinder body 54
Surely the second piston 55 connected.Sliding is connected with first piston 52 in first cylinder body 51, and first piston 52 is sheathed on the second cylinder body
Set on 54 and with it in sliding connection, 52 upper surface of first piston is circumferentially with four supports and divides bar 531, and support divides bar 531
Upper end passes perpendicularly through 51 upper surface of the first cylinder body and bending is connected to 53 lower end of supporting rod.In order to mitigate connecting rod 56 and supporting rod
53 are influenced be subject to horizontal active force, improve the stability of reversing-gear 5, are arranged with and lead in connecting rod 56 and supporting rod 53
To block 32, guide pad 32 and connecting rod 56 and guide pad 32 and supporting rod 53 are set in sliding connection, and guide pad 32 is fixed
It is connected on 3 side wall of well seat.
When water increases in dust-collecting bucket 4, its weight increases, and 56 slide downward of connecting rod, connecting rod 56 are driven by drag-line 42
Drive 55 slide downward of second piston and extrude the hydraulic oil in 54 lower section cavity of the second cylinder body, hydraulic oil passes through the second cylinder body 54
Gap 59 between lower section and the first cylinder body 51 enters the first cylinder body 51, makes 52 upward sliding of first piston and divides bar by support
531 promote 53 upward sliding of supporting rod, and the hydraulic oil of the top of first piston 52 passes through between the first cylinder body 51 and the second cylinder body 54
Gap 59 flow into the second cylinder body 54；Supporting rod 53 jacks up well lid 1, well lid 1 is departed from well seat 3, well lid 1 and well seat 3 it
Between formed an annular opening, increase displacement.In order to allow manhole lid device according to the amount of ponding on town road and oneself
Ponding is timely and effectively discharged into deep-well 2 by the height of the dynamic rising for adjusting well lid 1 with providing different displacement, will be propped up
Support, which divides on bar 531, is arranged with spring 57, and 57 upper end of spring is contacted on 51 upper end inner wall of the first cylinder body, and the other end contacts at first
On 52 upper surface of piston.When surface gathered water is by reducing more, the speed that ponding is flowed out from guide pipe 112 increases, and makes dust-collecting bucket 4
Interior water also increases, and the weight increase of dust-collecting bucket 4, the power increase for being subject to first piston 52, puts on the power on spring 57
Increase, so that spring 57 is increased by compression distance, the slippage of first piston 52 also increases, and then the height lifted of well lid 1
Also increase, using the elastic force of spring 57 linear change the characteristics of, 1 device of well lid is had different according to surface gathered water and is made well
1 raising height of lid is different, to adapt to different degrees of surface gathered water.Enter deep-well 2 to reduce impurity on road surface and rubbish
In, cylindric filter screen 14 is equipped between well lid 1 and well seat 3, the radius at 14 both ends of filter screen is more than the half of middle part
Footpath；14 upper end of filter screen is fixedly connected on 1 lower face of well lid, and 14 lower face of filter screen is fixedly connected on 31 notch of installation groove
Lower edge, 14 both ends radius of filter screen are less than 3 inner wall radius of well seat, in this way, when well lid 1 closes, filter screen 14 is inside
Bend and fold, filter screen 14 will not be pressed in installation groove 31 by well lid 1.
Specific working mode：When there is ponding on road surface, guide pipe 112 is flowed to by leakage hole 11, when ponding is less, product
Water is flowed directly in deep-well 2；When ponding is more, ponding is into parabola shaped into dust-collecting bucket 4, as the row of through hole 41 in dust-collecting bucket 4
When water speed is less than the speed into dust-collecting bucket 4, the water increase in dust-collecting bucket 4, the weight increase of dust-collecting bucket 4, passes through drag-line
42 pulling second pistons 55 overcome the elastic force of spring 57 and the weight of well lid 1 to lift well lid 1, increase displacement；At the same time because of police
Show that block 13 submerges and floats and give to warn.When surface gathered water increases, make into the speed increase in dust-collecting bucket 4 in dust-collecting bucket 4
Weight increase, further compress spring 57, well lid 1 is highly increased, opening between well lid 1 and well seat 3 is increased to add
Big displacement.When surface gathered water is reduced, the ponding in dust-collecting bucket 4, which drains, reduces 4 weight of dust-collecting bucket, is not enough to support well lid
1 weight, makes well lid 1 drop to reset.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (10)
1. a kind of liftable manhole lid device, including it is installed on the well seat of town road（3）With with well seat（3）The well lid of adaptation
（1）, the well lid（1）It is circumferentially with several leakage holes（11）, it is characterized in that：The well lid（1）If lower face is circumferentially with
Heavenly Stems and Earthly Branches strut（53）, the supporting rod（53）Away from well lid（1）One end be equipped with reversing-gear（5）, the reversing-gear（5）Gu
Surely it is connected to well seat（3）On inner wall, the well lid（1）Lower section is equipped with dust-collecting bucket（4）, the dust-collecting bucket（4）It is circumferentially with some
Connector, the connector is away from dust-collecting bucket（4）One end and reversing-gear（5）Connection, the reversing-gear（5）Including with branch
Strut（53）The first piston of connection（52）, be sheathed on first piston（52）First cylinder body upper and in sealed set（51）And
The second piston of connector connection（55）And it is placed on second piston（55）On the second cylinder body（54）, first cylinder body
（51）Inner cavity top and the second cylinder body（54）Inner cavity top connection, first cylinder body（51）Inner cavity bottom and the second cylinder
Body（54）The bottom connection of inner cavity, the well seat（3）It is fixedly connected with and ponding is guided to dust-collecting bucket（4）Guide pipe（112）,
The guide pipe（112）And leakage hole（11）Connection.
2. a kind of liftable manhole lid device according to claim 1, it is characterized in that：The dust-collecting bucket（4）Bottom is equipped with
Some through holes（41）.
3. a kind of liftable manhole lid device according to claim 1, it is characterized in that：The second piston（55）Area
Less than first piston（52）Area.
4. a kind of liftable manhole lid device according to claim 3, it is characterized in that：Second cylinder body（54）It is placed in
One cylinder body（51）It is interior, second cylinder body（54）In the cylindrical shape of both ends open, second cylinder body（54）With the first cylinder body
（51）In being coaxially disposed, first cylinder body（51）Top end face and the second cylinder body（54）Top end face between and the first cylinder body
（51）Bottom face and the second cylinder body（54）Bottom face between leave gap（59）, the first piston（52）It is placed on second
Cylinder body（54）Above and with it in sliding connect, the first piston（52）Inner wall and the second cylinder body（54）Outer wall fitting, institute
State supporting rod（53）With first piston（52）Between be circumferentially with support and divide bar（531）, the support divides bar（531）Pass perpendicularly through
First cylinder body（51）Top inner wall, the support divides bar（531）Away from first piston（52）One end to supporting rod（53）It is curved
Song is simultaneously fixedly connected on supporting rod（53）Lower end.
5. a kind of liftable manhole lid device according to claim 4, it is characterized in that：The support divides bar（531）Upper set
Equipped with spring（57）, the spring（57）One end contacts at the first cylinder body（51）Upper end inner wall, the other end contact at first piston
（52）Upper surface.
6. a kind of liftable manhole lid device according to claim 5, it is characterized in that：The dust-collecting bucket（4）Sidewalls vertical
Some through holes are uniformly arranged on direction（41）.
7. a kind of liftable manhole lid device according to claim 1, it is characterized in that：The connector includes connecting rod
（56）And drag-line（42）, the connecting rod（56）Upper end and second piston（55）It is fixedly connected, the drag-line（42）Lower end connects
In dust-collecting bucket（4）, the drag-line（42）Upper end and connecting rod（56）Lower end connects.
8. a kind of liftable manhole lid device according to claim 7, it is characterized in that：The supporting rod（53）And connecting rod
（56）On be arranged with guide pad（32）, the guide pad（32）It is fixedly connected on well seat（3）On inner wall.
9. a kind of liftable manhole lid device according to claim 1, it is characterized in that：The well lid（1）Lower end is installed with
Flexible annular filter screen（14）, the filter screen（14）Lower end is fixedly connected on well seat（3）.
10. a kind of liftable manhole lid device according to claim 1, it is characterized in that：The well lid（1）If upper end is equipped with
The warning block floated during dry submergence（13）, the warning block（13）With well lid（1）Between be equipped with fixed warning block（13）Drawstring
（131）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721014140.XU CN207228163U (en) | 2017-08-14 | 2017-08-14 | A kind of liftable manhole lid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721014140.XU CN207228163U (en) | 2017-08-14 | 2017-08-14 | A kind of liftable manhole lid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207228163U true CN207228163U (en) | 2018-04-13 |
Family
ID=61857102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721014140.XU Expired - Fee Related CN207228163U (en) | 2017-08-14 | 2017-08-14 | A kind of liftable manhole lid device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207228163U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978719A (en) * | 2018-09-14 | 2018-12-11 | 胡正仁 | Road cellar well |
| CN109356200A (en) * | 2018-11-12 | 2019-02-19 | 河海大学 | A kind of Intelligent rainwater well lid |
| CN110173017A (en) * | 2019-05-30 | 2019-08-27 | 迟才博 | A kind of new agricultural water cellar automatic sealing device |
| CN111321797A (en) * | 2019-03-26 | 2020-06-23 | 贺梁亮 | Waterlogging-preventing and object-dropping-preventing well lid |
| CN112832291A (en) * | 2020-12-31 | 2021-05-25 | 浙江万川装饰设计工程有限公司 | Inspection well and construction method thereof |
-
2017
- 2017-08-14 CN CN201721014140.XU patent/CN207228163U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978719A (en) * | 2018-09-14 | 2018-12-11 | 胡正仁 | Road cellar well |
| CN109356200A (en) * | 2018-11-12 | 2019-02-19 | 河海大学 | A kind of Intelligent rainwater well lid |
| CN111321797A (en) * | 2019-03-26 | 2020-06-23 | 贺梁亮 | Waterlogging-preventing and object-dropping-preventing well lid |
| CN110173017A (en) * | 2019-05-30 | 2019-08-27 | 迟才博 | A kind of new agricultural water cellar automatic sealing device |
| CN112832291A (en) * | 2020-12-31 | 2021-05-25 | 浙江万川装饰设计工程有限公司 | Inspection well and construction method thereof |
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Granted publication date: 20180413 |