CN208981482U - Road surface drainage structure - Google Patents
Road surface drainage structure Download PDFInfo
- Publication number
- CN208981482U CN208981482U CN201821624870.6U CN201821624870U CN208981482U CN 208981482 U CN208981482 U CN 208981482U CN 201821624870 U CN201821624870 U CN 201821624870U CN 208981482 U CN208981482 U CN 208981482U
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- CN
- China
- Prior art keywords
- metal frame
- leakage board
- frame
- collecting box
- gutter
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- 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.)
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Abstract
The utility model relates to building foundation engineering fields, for gutter since rubbish blocks the problem for causing drainage speed slow, provide a kind of road surface drainage structure, the technical solution is as follows: including several drainage cells, drainage cell includes the leakage board being set on gutter, the leakage hole being uniformly distributed on leakage board and the rubbish filtering collecting box being placed in gutter, leakage board is articulated on ground, rubbish filtering collecting box is removably connected on leakage board, rubbish filtering collecting box is open at one end, the leakage board is covered in the opening of rubbish filtering collecting box.After rubbish incidental enters gutter with rainwater, rubbish incidental can be blocked in rubbish filtering collecting box, it is not easy to be fallen in gutter, so that gutter is not easy to block, and then be accelerated the drainage speed in gutter.
Description
Technical field
The utility model relates to building foundation engineering fields, more specifically, it relates to a kind of road surface drainage structure.
Background technique
In the process of construction of existing road, for the ease of draining, the both sides of road are typically provided with gutter, drain
Ditch can guide to water in sump or sewer.Common gutter has concreting to form, and leak is provided on gutter
Plate is to meet the mechanical strength that vehicle presses through.Rainwater is entered in gutter by the leak-off chute on leakage board, then from draining
Ditch flows in sewer, completes draining.
When rainfall is larger, rainwater is easy to wash away the rubbish incidental on road surface, so that rubbish incidental leads to together with rainwater
It crosses leak-off chute to enter in gutter, when the rubbish incidental accumulation of road surface somewhere is more, then the ground can be made with rainwater
It is more into the rubbish incidental in gutter, so that rubbish incidental, which is easy to concentrate, is deposited in gutter somewhere, so that row
The run-off of ditch somewhere reduces, and even results in gutter and somewhere blocks, since gutter is full section connection, row
The somewhere blocking in ditch will lead to whole section of gutter and block, and is easy to cause the drainage speed in gutter to slow down, still has and change
Into space.
Utility model content
In view of the deficienciess of the prior art, having the purpose of this utility model is to provide a kind of road surface drainage structure
The advantages of accelerating the drainage speed in gutter.
To achieve the above object, the utility model provides following technical solution:
A kind of road surface drainage structure, including several drainage cells, the drainage cell include being set on gutter
Leakage board, several leakage holes being uniformly distributed on leakage board and the rubbish filtering collecting box being placed in gutter, the leakage
Water plate is articulated on ground, and the rubbish filtering collecting box is removably connected on leakage board, the rubbish filtering collecting box one
End opening, the leakage board are covered in the opening of rubbish filtering collecting box.
By adopting the above technical scheme, when rainfall is larger, and the rubbish incidental on ground is washed away, so that rubbish incidental is with water flow
When being entered in gutter by the leakage hole on leakage board, rubbish incidental can be blocked in rubbish filtering collecting box, it is not easy to be fallen
It drops down onto gutter, so that being not easy the case where local sanitary fill occur in gutter, so that gutter is not easy to block up
Plug, and then the drainage speed in gutter is accelerated, while advantageously reducing the later period maintenance expense expenditure of gutter blocking, favorably
In increasing economic efficiency, the wasting of resources is reduced, environmental protection is beneficial to energy conservation.When the sanitary fill in rubbish filtering collecting box is to centainly
When amount, leakage board is opened, leakage board can drive simultaneously rubbish filtering collecting box to extend out to outside gutter, by receiving rubbish filtering
Header is disassembled from leakage board, and rubbish is cleaned out, then rubbish filtering collecting box is reinstalled up, operation letter
Just.
Preferably, the both ends protrusion of the rubbish filtering collecting box has hook, and recess has embedding for linking up on the leakage board
The groove entered, when linking up with mutually chimeric with groove, the upper surface of the leakage board is flushed.
By adopting the above technical scheme, it by the setting of groove, when so that rubbish filtering collecting box being fixed on leakage board, hangs
Hook will not be raised in the surface of leakage board so that the upper surface of leakage board flushes, thus reduce the pedestrian in hook road pavement with
And the influence of driving, be conducive to the security performance for improving leakage board.
Preferably, the rubbish filtering collecting box includes metal frame and filter bag, and the hook is fixedly connected on metal frame
Close to the both ends of leakage board side, the filter bag is connected to side of the metal frame far from leakage board.
By adopting the above technical scheme, by the setting of filter bag so that after rubbish enters filter bag, filter bag can according to quantity of refuse and
Deformation occurs, the automatic quantity of refuse for adapting to fall into filter bag；Meanwhile filter bag flexible to rotate when leakage board around hinged side
When opening, the position of filter bag can remain sagging state under the action of rubbish gravity, reduce in rubbish filtering collecting box
Rubbish the case where being dumped out with the variation of leak Board position；In addition, filter bag advantageously reduces the entrance of sandstone sludge
Gutter and the bottom for being deposited in gutter are conducive to the drainage speed for improving gutter；By the setting of metal frame, so that hanging
Hook is connect with the metal frame of rigidity, so that the connection structure of hook is more stable.
Preferably, the metal frame is fixedly connected with flexible rubber frame, the flexible rubber frame close to the side of leakage board
The shape size in section is consistent with the shape size in metal frame section, side and leak of the flexible rubber frame far from metal frame
The bottom wall of plate abuts.
By adopting the above technical scheme, by the setting of flexible rubber frame, so that rubbish filtering collecting box is close to leakage board
There is no gap between side and leakage board bottom wall, so that rubbish is not easy to overflow and enter from rubbish filtering collecting box
In gutter, so that being not easy accumulation in gutter has rubbish, so that gutter is not easy to block, be conducive to improve draining
The drainage speed of ditch.
Preferably, the filter bag is removably connected on metal frame.
By adopting the above technical scheme, being detachably connected by filter bag, convenient for filter bag damage when to filter bag dismantled with
And replacement, it is easy to operate, be conducive to improve working efficiency.
Preferably, the outer wall depression for the side that the metal frame is connect with filter bag has circular one week holding tank of metal frame,
What the filter bag was connect with metal frame is partially disposed in holding tank, is also removably connected on the metal frame chimeric with holding tank
Gripper frame.
By adopting the above technical scheme, it is partially disposed in holding tank by connect filter bag with metal frame, it then will clamping
The outer wall that the frame inner wall for making gripper frame simultaneously chimeric with holding tank and metal frame are equipped with holding tank pushes against, and gripper frame is fixed
In on metal frame, so that filter bag is fixed on metal frame；By disassembling gripper frame, gripper frame is released to the folder of filter bag
The effect of holding, so that filter bag is disassembled from metal frame, so that the dismountable function of filter bag is realized, it is easy to operate.
Preferably, the metal frame recess has the outer wall of holding tank and the inner wall of gripper frame to be all covered with seal rubber
Frame.
By adopting the above technical scheme, by the setting of seal rubber frame so that metal frame recess have the outer wall of holding tank with
And the gap between gripper frame inner wall reduces, being conducive to, which enhances metal frame outer wall and gripper frame inner wall, makees the clamping of filter bag
With so that the connection between filter bag and metal frame is more firm.
Preferably, through there is bolt, the bolt runs through metal frame simultaneously for the bottom of the gripper frame.
By adopting the above technical scheme, by bolt-through in the bottom of gripper frame, so that bolt-through gripper frame and gold
Belong to the wall thickness of frame, so that bolt will not be conducive to extend filter bag to reduce bolt to the detrimental effect of filter bag through filter bag
Service life.
Preferably, the leakage board has card slot far from hinged side recess.
By adopting the above technical scheme, manpower by insertion card slot and is opened leakage board, easy to operate, is conducive to laborsaving.
Preferably, the section of the metal frame is rectangle, the apex angle Edge Blend angle of the metal frame, the metal frame
Apex angle side, which is also recessed, arc groove.
By adopting the above technical scheme, by the apex angle Edge Blend angle of metal frame and the setting of arc groove, so that dismantling
At the stress of manpower it is arc surface when rubbish filtering collecting box, is conducive to the comfort level for improving operation.
In conclusion the utility model has the following beneficial effects:
1. can be blocked in rubbish filtering collecting box by the rubbish that leakage hole enters gutter, it is not easy to fall to draining
In ditch, so that gutter is not easy to block, and then the drainage speed in gutter is accelerated；
2. leakage board is driven simultaneously outside rubbish filtering collecting box stretching gutter, and by rubbish mistake by opening leakage board
Filter collecting box is disassembled from leakage board, rubbish is cleaned out, then rubbish filtering collecting box is reinstalled up, is operated
It is easy；
3. by the setting of groove, so that hook will not be raised in the surface of leakage board, to reduce in hook road pavement
Pedestrian and driving driving influence, be conducive to improve leakage board security performance；
4. by the setting of filter bag, so that filter bag can be according to quantity of refuse and deformation occurs after rubbish enters filter bag, it is automatic suitable
The quantity of refuse in filter bag should be fallen into；
5. filter bag flexible makes when leakage board is around hinged side rotating opening, the position of filter bag can be in rubbish gravity
Sagging state is remained under effect, the rubbish reduced in rubbish filtering collecting box can be inclined with the variation of leak Board position
The case where pouring out；
6. pass through the setting of flexible rubber frame, so that it is seamless between rubbish filtering collecting box and leakage board bottom, so that
Rubbish is not easy to overflow from rubbish filtering collecting box, to reduce the case where rubbish can be deposited in gutter, is conducive to improve
The drainage speed in gutter.
Detailed description of the invention
Fig. 1 is the overall structure diagram of road surface discharge structure in the utility model；
Fig. 2 is in the utility model for illustrating the structural schematic diagram of drainage cell；
Fig. 3 is the enlarged diagram in the portion A in Fig. 2.
In figure: 1, drainage cell；11, leakage board；111, card slot；112, groove；12, leakage hole；13, rubbish filtering is collected
Case；131, metal frame；1311, drainage hole；1312, arc groove；1313, holding tank；132, filter bag；14, it links up with；15, flexible rubber
Glue frame；151, square groove；16, gripper frame；161, seal rubber frame；17, bolt；2, ground；3, gutter.
Specific embodiment
With reference to the accompanying drawings and embodiments, the utility model is described in further detail.
A kind of road surface drainage structure, referring to Fig. 1 and Fig. 2, including several drainage cells 1, drainage cell 1 include setting
In leakage board 11, several leakage holes 12 for being uniformly distributed on leakage board 11 and the rubbish being placed in gutter 3 on gutter 3
Case 13 is collected by filtration in rubbish.Rubbish filtering collecting box 13 is open at one end, and leakage board 11 is covered in the opening of rubbish filtering collecting box 13
Place.
Referring to fig. 2, in a rectangular parallelepiped shape, the wherein side of leakage board 11 in the width direction is articulated on ground 2 leakage board 11,
The marginal position recess of the other side of leakage board 11 in the width direction has card slot 111, and card slot 111 is not through leakage board 11, card slot
111 are placed in the middle position of 11 length direction of leakage board.
Referring to fig. 2 and Fig. 3, rubbish filtering collecting box 13 are removably connected on leakage board 11, rubbish filtering collecting box
13 include metal frame 131 and filter bag 132, and filter bag 132 is removably connected to side of the metal frame 131 far from leakage board 11.Gold
The section for belonging to frame 131 is rectangle, and the both ends of metal frame 131 are fixedly connected to hook 14.Hook 14 is placed in 131 side of metal frame
On middle position.Metal frame 131 along its length both ends lateral wall respectively with the leakage hole 12 of 11 end of leakage board near
The inner wall of nearly 11 end of leakage board flushes, metal frame 131 in the width direction two sides lateral wall respectively with leakage hole 12 near
The inner wall of the two sides side wall of leakage board 11 in the width direction flushes.Between the bottom of metal frame 131 and the bottom of leakage board 11
Side wall of the vertical distance than metal frame 131 in the width direction far from 11 hinged place side of leakage board and gutter 3 are in the width direction
Horizontal distance between side wall far from 11 hinged place side of leakage board is small.
Referring to fig. 2 and Fig. 3, hook 14 is hooked on the both ends of leakage board 11, leakage board 11 corresponding recess and has for hook
The groove 112 of 14 insertions.When rubbish filtering collecting box 13 is hooked on leakage board 11, the upper of 14 top and leakage board 11 is linked up with
Surface flushes.Groove 112 is placed in the leakage hole 12 of 11 both ends end of leakage board.
Referring to fig. 2 and Fig. 3, the surrounding side wall of metal frame 131 are provided with several drainage holes 1311, drain along metal frame
131 side wall is uniformly distributed.The equal rounded corner in apex angle side of metal frame 131, also recess has arc groove on the apex angle side of metal frame 131
1312, arc groove 1312 is placed in the middle position in apex angle edge lengths direction.
Referring to fig. 2 and Fig. 3, metal frame 131 are fixedly connected with flexible rubber frame 15 close to the side of leakage board 11, flexible
The size shape in 15 section of rubber frame is consistent with the size shape in 131 section of metal frame.Flexible rubber frame 15 is far from metal frame 131
Side abutted with the bottom wall of leakage board 11, the height of flexible rubber frame 15 is than hook 14 far from 131 one end end of metal frame
The height of hook is high.Flexible rubber frame 15 is provided with square groove 151 in the link position of hook 14 and metal frame 131 and passes through for hook 14
It wears.
Referring to fig. 2 and Fig. 3, metal frame 131 have holding tank 1313 far from the marginal position recess of 11 side of leakage board, hold
Slot 1313 of receiving surrounds metal frame 131 1 weeks.Metal frame 131 is also removably connected with gripper frame 16 far from 11 side of leakage board, folder
It is chimeric with holding tank 1313 to hold frame 16, when gripper frame 16 is chimeric with holding tank 1313, the outer wall of metal frame 131 is smooth.Metal
The recess of frame 131 has the outer wall of part of holding tank 1313 and the inner wall of gripper frame 16 to be all covered with seal rubber frame 161, metal
It is seamless between seal rubber frame 161 on frame 131 and gripper frame 16.Filter bag 132 and the coupling part of metal frame 131 are placed in
Between seal rubber frame 161 on metal frame 131 and gripper frame 16.
Referring to fig. 2 and Fig. 3, the bottom of gripper frame 16 is through there is a bolt 17, bolt 17 simultaneously through gripper frame 16 and
The wall thickness of metal frame 131, in the present embodiment, there are four bolt 17 is set, four bolts 17 are respectively placed in metal frame 131 and folder
It holds on four apex angle sides of frame 16.
The operating condition and principle of the present embodiment are as follows:
When rainfall is larger or the streamflow on road surface is larger, the rubbish incidental on road surface can be flowed with flowing water, and with flowing water
Entered in gutter 3 by leakage hole 12 together, the rubbish incidental into gutter 3 can be fallen in filter bag 132, by filter bag 132
It blocks and is not easily accessed into gutter 3, so that being not easy the case where local sanitary fill occur in gutter 3, make
It obtains gutter 3 to be not easy to block, so that the drainage speed in gutter 3 is accelerated, while being conducive to improve the draining speed on road surface
Degree, in addition, advantageously reducing later period maintenance expense caused by gutter 3 blocks, economize on resources cost, is conducive to improve economic effect
Benefit is beneficial to energy conservation environmental protection.
When the sanitary fill in filter bag 132 to it is a certain amount of when, by card slot 111 push leakage board 11 around hinged side turn
Dynamic, so that leakage board 11 is opened, while driving rubbish filtering collecting box 13 to stretch out outside gutter 3, operator is by by hand card
Enter in the arc groove 1312 of metal frame 131, and rubbish filtering collecting box 13 is pushed to move towards the direction close to leakage board 11, together
When compressed flexible rubber frame 15 so that hook 14 is separated from groove 112, so that rubbish filtering collecting box 13 is disassembled down
Come, and the rubbish in filter bag 132 is cleaned out.
Then hand by being caught in the arc groove 1312 of metal frame 131 by operator, and pushes rubbish filtering collecting box
13 are caught in hook 14 in groove 112, so that hook 14 is chimeric with groove 112, so that rubbish filtering collecting box 13 is fixed
In on leakage board 11, finally leakage board 11 is covered with complete rubbish cleaning and installation operation, it is easy to operate.
It, will be on gripper frame 16 and metal frame 131 by screwing out bolt 17 from gripper frame 16 when filter bag 132 damages
The holding tank 1313 of recess separates, and releases gripper frame 16 and holding tank 1313 to the fixed function of filter bag 132, thus will damage
Filter bag 132 take apart.Then it will need what new filter bag 132 connect with metal frame 131 to be partially disposed in holding tank 1313,
And by 16 sets of gripper frame on holding tank 1313, so that gripper frame 16 is chimeric with holding tank 1313, and filter bag 132 is fixed on appearance
It receives between slot 1313 and gripper frame 16, is tightened finally by by the bolt 17 of 16 4 corner positions of gripper frame, so that filter bag
132 position is fixed, easy to operate.
By the setting of groove 112, when so that hook 14 is mutually chimeric with groove 112, the upper surface of leakage board 11 is flushed, and is hung
Hook 14 will not be raised in the surface of leakage board 11, reduce the pedestrian of 14 road pavements of hook and the influence of driving, be conducive to improve
The security performance of leakage board 11 reduces the generation of peril.
By the setting of filter bag 132, so that filter bag 132 can be according to the quantity of refuse automatic adjustment fallen into, so that filter bag 132 is suitable
Answer different quantity of refuse；Meanwhile filter bag 132 flexible makes during leakage board 11 is opened, filter bag 132 can be in rubbish
Sagging state is remained under gravity, the rubbish reduced in filter bag 132 can be poured with the inclination of leakage board 11
The case where, filter bag 132 flexible reduces rubbish filtering collecting box 13 simultaneously and is stretching out gutter 3 with the opening of leakage board 11
In the process, can and gutter 3 side wall generate interference, the case where being stuck and can not stretch out so that the volume of filter bag 132 by
Limitation reduce, be conducive to increase garbage storing storage；In addition, filter bag 132 also help reduce sandstone sludge enter gutter 3 and
It is deposited in 3 bottom of gutter, is conducive to the drainage speed for improving gutter 3.
It is connect by hook 14 with metal frame 131, is conducive to the stability for improving the connection structure of hook 14.
By the setting of drainage hole 1311, be conducive to the drainage speed for accelerating rubbish filtering collecting box 13, to be conducive to
The drainage speed in gutter 3 is improved, the case where ponding can be had by reducing rubbish filtering collecting box 13.
By the setting of flexible rubber frame 15, so that it is seamless between 11 bottom of rubbish filtering collecting box 13 and leakage board,
So that the rubbish in rubbish filtering collecting box 13 is not easy to be spilled over in gutter 3, so that being not easy to accumulate in gutter 3
Rubbish is conducive to the drainage speed for improving gutter 3 so that gutter 3 is not easy to block.
It is detachable by filter bag 132, so that filter bag 132 is easy to disassemble in damage and replaces, it is easy to operate, be conducive to
Improve working efficiency.
By the setting of seal rubber frame 161, be conducive to enhance the leakproofness between holding tank 1313 and grip block, from
And filter bag 132 is more steadily fixed between holding tank 1313 and grip block, be conducive to enhance holding tank 1313
And grip block is to the clamping action of filter bag 132.
By bolt 17 through gripper frame 16 and the wall thickness of metal frame 131, so that bolt 17 will not run through filter bag 132,
Bolt 17 is advantageously reduced to the detrimental effect of filter bag 132, is conducive to extend the service life of filter bag 132.
It is easy to operate convenient for the opening operation of leakage board 11 by the setting of card slot 111.
There is arc groove 1312 by the apex angle Edge Blend angle and recess of metal frame 131, is conducive to improve relaxing for manpower operation
Appropriateness.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of road surface drainage structure, it is characterized in that: including several drainage cells (1), the drainage cell (1) includes setting
In on gutter (3) leakage board (11), several leakage holes (12) for being uniformly distributed on leakage board (11) and be placed in draining
Rubbish filtering collecting box (13) in ditch (3), the leakage board (11) are articulated on ground (2), the rubbish filtering collecting box
(13) it is removably connected on leakage board (11), the rubbish filtering collecting box (13) is open at one end, and the leakage board (11) is covered
It is placed on the opening of rubbish filtering collecting box (13).
2. road surface drainage structure according to claim 1, it is characterized in that: the both ends of the rubbish filtering collecting box (13) are convex
Rising has hook (14), and recess has the groove (112) for hook (14) insertion on the leakage board (11), when hook (14) and groove
(112) when being mutually fitted into, the upper surface of the leakage board (11) is flushed.
3. road surface drainage structure according to claim 2, it is characterized in that: the rubbish filtering collecting box (13) includes metal
Frame (131) and filter bag (132), the hook (14) are fixedly connected on metal frame (131) close to the two of leakage board (11) side
End, the filter bag (132) are connected to the side of metal frame (131) far from leakage board (11).
4. road surface drainage structure according to claim 3, it is characterized in that: the metal frame (131) is close to leakage board (11)
Side be fixedly connected with flexible rubber frame (15), the shape size in flexible rubber frame (15) section and metal frame (131)
The shape size in section is consistent, the bottom wall of side and leakage board (11) of the flexible rubber frame (15) far from metal frame (131)
It abuts.
5. road surface drainage structure according to claim 4, it is characterized in that: the filter bag (132) is removably connected to metal
On frame (131).
6. road surface drainage structure according to claim 5, it is characterized in that: the metal frame (131) is connect with filter bag (132)
The outer wall depression of side have (131) one weeks holding tanks (1313) of circular metal frame, the filter bag (132) and metal frame
(131) connection is partially disposed in holding tank (1313), is also removably connected on the metal frame (131) and holding tank
(1313) chimeric gripper frame (16).
7. road surface drainage structure according to claim 6, it is characterized in that: the metal frame (131) recess has holding tank
(1313) inner wall of outer wall and gripper frame (16) is all covered with seal rubber frame (161).
8. road surface drainage structure according to claim 7, it is characterized in that: the bottom of the gripper frame (16), which is run through, bolt
(17), the bolt (17) runs through metal frame (131) simultaneously.
9. road surface drainage structure according to claim 1, it is characterized in that: the leakage board (11) is recessed far from hinged side
Falling into has card slot (111).
10. road surface drainage structure according to claim 3, it is characterized in that: the section of the metal frame (131) is in rectangular
Shape, the apex angle Edge Blend angle of the metal frame (131), the apex angle side of the metal frame (131) are also recessed and have arc groove (1312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624870.6U CN208981482U (en) | 2018-09-30 | 2018-09-30 | Road surface drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624870.6U CN208981482U (en) | 2018-09-30 | 2018-09-30 | Road surface drainage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208981482U true CN208981482U (en) | 2019-06-14 |
Family
ID=66786650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821624870.6U Expired - Fee Related CN208981482U (en) | 2018-09-30 | 2018-09-30 | Road surface drainage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208981482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227507A (en) * | 2020-10-21 | 2021-01-15 | 杭州楷围机械科技有限公司 | Prevent blockking up drainage mechanism based on rainfall size adjustment drainage rate |
| CN112942013A (en) * | 2021-02-03 | 2021-06-11 | 董盼 | Road drainage equipment |
-
2018
- 2018-09-30 CN CN201821624870.6U patent/CN208981482U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227507A (en) * | 2020-10-21 | 2021-01-15 | 杭州楷围机械科技有限公司 | Prevent blockking up drainage mechanism based on rainfall size adjustment drainage rate |
| CN112942013A (en) * | 2021-02-03 | 2021-06-11 | 董盼 | Road drainage equipment |
| CN112942013B (en) * | 2021-02-03 | 2023-01-03 | 深圳市鑫胜建筑劳务有限公司 | Road drainage equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20210930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |