CN107119530A - Tree well bottom support plate system with anti-theft feature - Google Patents
Tree well bottom support plate system with anti-theft feature Download PDFInfo
- Publication number
- CN107119530A CN107119530A CN201611112019.0A CN201611112019A CN107119530A CN 107119530 A CN107119530 A CN 107119530A CN 201611112019 A CN201611112019 A CN 201611112019A CN 107119530 A CN107119530 A CN 107119530A
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- Prior art keywords
- transverse slat
- water
- supporting plate
- tree well
- connecting rod
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/004—Pavings specially adapted for allowing vegetation
- E01C9/005—Coverings around trees forming part of the road
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a kind of tree well bottom support plate system with anti-theft feature, it is related to plant attending device technical field.The system includes two pieces of supporting plate bodies, every piece of supporting plate body includes some pieces of stringer boards and transverse slat, a locking auxiliary member is respectively provided with the stringer board of rectangular indentation front and rear sides, the locking auxiliary member includes inverted trapezoidal part and cross break part, the inverted trapezoidal part includes the first vertical pole and the first vertical bar, the lower end of first vertical bar is welded to connect with first vertical pole, first vertical bar is through the stringer board and extends on the upper side of the supporting plate body, one end of the cross break part and the upper end of first vertical bar are welded to connect, the other end of the cross break part is provided with locking ring, the locking ring of the left and right sides carries out locking by a U-shape lock.Connected as one between two pieces of supporting plate bodies of the supporting plate system by locking auxiliary member and U-shape lock, can effectively prevent from losing.
Description
Technical field
The present invention relates to plant attending device technical field, more particularly to a kind of tree well bottom support with anti-theft feature
Plate system.
Background technology
With the development of urbanization process, increasing green plants are planted in the both sides in street, are planted by street
Wood of planting trees usually first digs a tree well, then adjusts the size of tree well, makes the generally square structure of tree well, then cement
Change the side wall all around of tree well, and a boss structure is formed on the wall of side, for placing a supporting plate, the work of supporting plate
With being to prevent people from dropping in tree well, as shown in Figure 1.But supporting plate of the prior art has the following disadvantages when in use：First,
There is no fastening device to connect between two pieces of supporting plates to be structure as a whole, be easily lost；2nd, when rainfall is larger or transition of watering
When, the water in tree well covers supporting plate, when people steps in supporting plate, can splash people all over the body, be brought inconvenience to pedestrian；Three, work as hole
When interior water is less, because the space in supporting plate is larger so that the evaporation of moisture is too fast, the effect watered is not had；Four, by
Space is provided with supporting plate of the prior art, causes the rubbish such as fallen leaves to enter in tree well, it has not been convenient to clear up.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of tree well bottom support plate system with anti-theft feature, institute
Connected as one, can be effectively prevented by locking auxiliary member and U-shape lock between two pieces of supporting plate bodies for stating supporting plate system
Lose.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of tree well bottom with anti-theft feature
Portion's supporting plate system, it is characterised in that：Including two pieces of supporting plate bodies, the middle part of the side of every piece of supporting plate body is provided with
One rectangular indentation, the part that two supporting plate bodies have rectangular indentation is oppositely arranged, two rectangular indentations for being oppositely arranged
Trunk is constituted by hole, every piece of supporting plate body includes each on some pieces of stringer boards and transverse slat, the stringer board of rectangular indentation front and rear sides
Provided with a locking auxiliary member, the locking auxiliary member includes inverted trapezoidal part and cross break part, and the inverted trapezoidal part includes
First vertical pole and the first vertical bar, the lower end of the first vertical bar are welded to connect with first vertical pole, and first vertical bar is worn
Cross the stringer board and extend on the upper side of the supporting plate body, one end of the cross break part and described first vertical
The upper end of bar is welded to connect, and the other end of the cross break part is provided with locking ring, and the locking ring of the left and right sides passes through a U-shape lock
Carry out locking.
Further technical scheme is：Transverse slat split is arranged between stringer board, and transverse slat is along the supporting plate body
Fore-and-aft direction be arranged at intervals, the transverse slat on same straight line linked together by a connecting rod, is lacked with the rectangle
Mouth is relative and is provided with breach positioned at outermost transverse slat, and tool transverse slat jaggy is fixedly connected with the stringer board, makes this portion
It is always plumbness to divide transverse slat, and the transverse slat of other parts is fixedly connected with the connecting rod, rotated with the rotation of connecting rod；
Provided with drive component in the breach, drive component includes a stepper motor, a driving chain and some
Individual drive, wherein the drive is located at the outboard end of every connecting rod, all drives pass through same driving-chain
Bar is linked together, and the clutch end of the stepper motor is fixedly connected with one of drive, and one of those is indulged
The downside of plate is provided with liquid level sensor, and the upper side of one of stringer board is embedded with water sensor, and controller is fixed on it
In one piece of stringer board downside on, the connection of the signal input part of the liquid level sensor and water sensor and controller, water pump
In the controller, feed tube is connected with the inlet of water pump, feed tube extends to the bottom of tree well, the water pump
It is connected with and is extended through in drain pipe, the one piece of stringer board of drain pipe therefrom to outside the supporting plate system on liquid outlet
Side；
During initial use state, it is horizontality to have the transverse slat beyond transverse slat jaggy, when water sensor sensed water or
When rainwater is injected into tree well, controller control stepper motor action, driving stepper motor connecting rod is rotated, and connecting rod drives institute
Transverse slat rotation is stated, transverse slat is turned to plumbness from horizontality, water can be smoothly entered in tree well；When in entrance tree well
Water or rainwater when reaching a period of time on the liquid level sensor, controller controls the water pump to carry out pumping action, directly
Water or rainwater in tree well are located at a period of time under the liquid level sensor, now controller control stepper motor action,
Driving stepper motor connecting rod is rotated, and connecting rod drives the transverse slat to rotate, and the transverse slat of plumbness is changed into horizontality,
Reduce the void area between transverse slat and stringer board.
Further technical scheme is：The supporting plate system also includes thin-film solar cells, the film sun
Energy battery is set around the periphery of trunk, the power input of the power output end of the thin-film solar cells and the controller
End connection, the controller is that the liquid level sensor, water sensor, stepper motor and water pump are powered.
Further technical scheme is：The water sensor is provided with several, when any one water sensor therein
When sensing water or rainwater and continuing for some time, controller control connecting rod action.
Further technical scheme is：The liquid level sensor is provided with several, when any one liquid level therein is passed
Sensor senses water level or rain water level information and on being located at during a period of time, controller control water pump and connecting rod action.
Further technical scheme is：Two pieces of supporting plate bodies are close to the position of rectangular indentation provided with the lock cooperated
Closing member, two pieces of supporting plate bodies are connected as one by the fastening device of mutual cooperation.
It is using the beneficial effect produced by above-mentioned technical proposal：The support set different from split in the prior art
Connected as one in plate, the application between two pieces of supporting plate bodies by locking auxiliary member and U-shape lock, can effectively prevent from losing
Lose.
In addition, be all vertically arranged different from transverse slat and stringer board all in tree root bottom support plate of the prior art, this
Apply for that most of transverse slat is horizontally disposed in original state in supporting plate body, can not only prevent people from dropping in tree well, may be used also
Prevent fallen leaves, debris etc. from falling into tree well, the frequency and intensity of reduction tree well cleaning, so as to reduce the labor of cleaner with effective
Fatigue resistance.
When water sensor has sensed water or rainwater is injected into tree well, controller control stepper motor action, stepping
Motor drive connection bar is rotated, and connecting rod drives the transverse slat to rotate, and transverse slat is turned to plumbness from horizontality, and water can be with
Smoothly enter in tree well, and when in a period of time（Prevent this function of frequent starting）, water sensor do not sense water or
During rainwater, under the control of the controller, driving stepper motor transverse slat to original state, the inconvenience that can effectively avoid watering with
And the absorption problem of rainfall.
It is excessive in order to reduce when entering a period of time on the water in tree well or the rainwater arrival liquid level sensor
The inconvenience that water and rainwater are caused to pedestrian, controller controls the water pump to carry out pumping action, until the water or rainwater in tree well
Under the liquid level sensor during a period of time（Prevent this function of frequent starting）, controller control stepper motor action,
Driving stepper motor connecting rod is rotated, and the connecting rod drive transverse slat is rotated, and transverse slat is in horizontality, reduces transverse slat with indulging
Void area between plate, now, can also effectively reduce the evaporation of moisture, and the moisture for absorbing trees is more, more favorably
In growth.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of prior art supporting plate and tree well binding site；
Fig. 2 is the overlooking the structure diagram of supporting plate system initial state described in the embodiment of the present invention；
Fig. 3 is that supporting plate system described in the embodiment of the present invention changes state（Part transverse slat is in plumbness）Plan structure
Schematic diagram；
Fig. 4 is the left view structural representation of supporting plate system initial state described in the embodiment of the present invention（Remove locking auxiliary
Part）；
Fig. 5 is transverse slat and the mplifying structure schematic diagram of stringer board junction in the embodiment of the present invention（Transverse slat is in vertical state）；
Fig. 6 is transverse slat and the mplifying structure schematic diagram of stringer board junction in the embodiment of the present invention（Transverse slat is in horizontality）；
Fig. 7 is main structure diagram when two auxiliary fastening devices coordinate in the embodiment of the present invention；
Fig. 8 is overlooking the structure diagram when two auxiliary fastening devices coordinate in the embodiment of the present invention；
Fig. 9 is the electrical principle block diagram of supporting plate system described in the embodiment of the present invention；
Wherein：1st, supporting plate body 2, rectangular indentation 3, stringer board 4, transverse slat 5, connecting rod 6, breach 7, stepper motor 8, driving chain
9th, drive 10, liquid level sensor 11, water sensor 12, controller 13, tree well 14, cement side wall 15, trees 16, existing
Supporting plate 17, cross break part 18, the first vertical pole 19 in technology, the first vertical bar 20, locking ring 21, U-shape lock.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As shown in Fig. 2 the embodiment of the invention discloses a kind of tree well bottom support plate system with anti-theft feature, including
Two pieces of supporting plate bodies 1, the middle part of the side of every piece of supporting plate body 1 is provided with a rectangular indentation 2, two supporting plate sheets
The part that body 1 has rectangular indentation 2 is oppositely arranged.Two rectangular indentations being oppositely arranged constitute trunk and pass through hole, every piece of support
Plate body 1 includes being respectively provided with a locking auxiliary member on some pieces of stringer boards 3 and transverse slat 4, the stringer board 3 of the front and rear sides of rectangular indentation 2.
As Figure 7-8, the locking auxiliary member includes inverted trapezoidal part and cross break part 17, and the inverted trapezoidal part, which includes first, to be indulged
The vertical bar 19 of bar 18 and first, the lower end of the first vertical bar 19 is welded to connect with first vertical pole 18, first vertical bar
19 pass through the stringer board 3 and extend on the upper side of the supporting plate body 1.One end of the cross break part 17 with it is described
The upper end of first vertical bar 18 is welded to connect, and the other end of the cross break part 17 is provided with locking ring 20, the locking of the left and right sides
Ring 20 carries out locking by a U-shape lock 21.
Different from prior art, it is connected as in the application between two pieces of supporting plate bodies by locking auxiliary member and U-shape lock
One, and because trunk passes through trunk by hole, can effectively prevent from losing successively.
As Figure 2-3, the split of transverse slat 4 is arranged between stringer board, and transverse slat 4 is along before and after the supporting plate body 1
Direction is arranged at intervals（It is described herein all around to refer to Fig. 2 all around）, spacing distance necessarily can not also
It is fixed, generally described it is set to certain value in order to attractive in appearance.Transverse slat 4 on same straight line passes through a connecting rod
5 link together.As shown in figure 4, relatively and being provided with breach 6, and tool positioned at outermost transverse slat 4 with the rectangular indentation 2
Jagged 6 transverse slat 4 is fixedly connected with positioned at the outermost stringer board 3, and it is always plumbness to make this part transverse slat 4, many
Some transverse slats 4 are connected by different connecting rods, and the transverse slat 4 of other parts is fixedly connected with the connecting rod 5, with connecting rod 5
Rotation and rotate.
Provided with a drive component in the breach 6（Every piece of supporting plate body 1 is provided with a drive component）, driving
Component includes a stepper motor 7, a driving chain 8 and several drives 9.Wherein described drive 9 is located at every company
The outboard end of extension bar 5, all drives 9 are linked together by same driving chain 8, transverse slat and stringer board junction
Mplifying structure schematic diagram is as seen in figs. 5-6.The clutch end of the stepper motor 7 is fixed with one of drive 9 to be connected
Connect, the downside of one of stringer board 3 is provided with liquid level sensor 10, and the upper side of one of stringer board is embedded with water sensing
Device 11（Water sensor 11 answer it is exposed outside）, on the downside for one piece of stringer board 3 that controller 12 is fixed therein, the liquid level is passed
Sensor 10 and water sensor 11 are connected with the signal input part of controller 12, are illustrated in figure 9 described in present invention implementation and are supported
The electrical principle block diagram of plate system.It may be noted that be, in order to which cabling is convenient, the liquid level sensor 10, water sensor 11 and
Controller 12 can be on same stringer board, and in order to connect the stepper motor on two pieces of supporting plate bodies 1, can be by whole
The mode that walking line is entered in the downside of individual supporting plate body 1 is carried out.Water pump is located in the controller, is connected on the inlet of water pump
There is feed tube, feed tube extends to and drain pipe is connected with the bottom of tree well, the liquid outlet of the water pump, drain pipe is therefrom
Extended through in one piece of stringer board 3 to the outside of the supporting plate system, generally drain pipe is extended under road curb,
Water or rainwater is set to be discharged into the sewer on road.
The system is only using a controller, and the sensor that controller is received on two pieces of supporting plate bodies simultaneously is passed
The information sent, and two stepper motors and a water pump action are controlled simultaneously.In initial use state, the horizontal stroke with breach 6
Transverse slat 4 beyond plate 4 is horizontality, and the transverse slat 4 with breach 6 is always plumbness；When water sensor 11 has been sensed
When water or rainwater are injected into tree well 13, the control stepper motor 7 of controller 12 is acted, and the drive connection bar 5 of stepper motor 7 is rotated,
Connecting rod 5 drives the transverse slat 4（There is no the transverse slat of breach 6）Rotate, transverse slat 4 is turned to plumbness, such as Fig. 3 from horizontality
Shown, water can be smoothly entered in tree well；When the water or rainwater that enter in tree well are reached on the liquid level sensor 10
During a period of time, controller 12 controls the water pump to carry out pumping action, until the water or rainwater in tree well 13 are located at the liquid
A period of time under level sensor 10, the now control of controller 12 stepper motor 7 is acted, 5 turns of 7 drive connection bar of stepper motor
Dynamic, connecting rod 5 drives the transverse slat 4 to rotate（There is no the transverse slat of breach 6）, the transverse slat 4 of plumbness is changed into horizontality,
Reduce the void area between transverse slat 4 and stringer board 3.
Acquisition electric energy for convenience, the supporting plate system also includes thin-film solar cells, the thin film solar
Battery is set around the periphery of trunk, the power input of the power output end of the thin-film solar cells and the controller 12
End connection, the controller is that the liquid level sensor 10, water sensor 11 and water pump are powered.
In order that the perception of information is more accurate, the water sensor 11 is provided with several, when any one water therein is passed
When sensor senses water or rainwater and continued for some time（Prevent frequent start-stop）, controller control connecting rod action.Similarly, institute
Liquid level sensor 10 is stated provided with several, when any one liquid level sensor therein senses water level or rain water level information and position
On during a period of time, controller control water pump and connecting rod action.Two pieces of supporting plate bodies 1 are close to the position of rectangular indentation
Fastening device provided with mutual cooperation, two pieces of supporting plate bodies are connected as one by the fastening device of mutual cooperation, can be effective
The supporting plate system is prevented to be stolen.
All it is always to be vertically arranged different from transverse slat and stringer board all in the tree root bottom support plate of prior art, this Shen
It please most of transverse slat be horizontally disposed in original state in supporting plate body, can not only prevent people from dropping in tree well, can be with
It is effective to prevent fallen leaves, debris etc. from falling into tree well, the frequency and intensity of reduction tree well cleaning, so as to reduce the work of cleaner
Intensity.
In addition, when water sensor has sensed water or rainwater is injected into tree well, controller control stepper motor action,
Driving stepper motor connecting rod is rotated, and connecting rod drives the transverse slat to rotate, and transverse slat is turned to plumbness, water from horizontality
Or rainwater can be smoothly entered in tree well, and when in a period of time（Prevent this function of frequent starting）, water sensor do not have
When sensing water or rainwater, under the control of the controller, driving stepper motor transverse slat can effectively avoid pouring to original state
The inconvenience of water and the absorption problem of rainwater.
It is excessive in order to reduce when entering a period of time on the water in tree well or the rainwater arrival liquid level sensor
The inconvenience that water and rainwater are caused to pedestrian, controller controls the water pump to carry out pumping action, until the water or rainwater in tree well
Under the liquid level sensor during a period of time（Prevent this function of frequent starting）, controller control stepper motor action,
Driving stepper motor connecting rod is rotated, and the connecting rod drive transverse slat is rotated, and transverse slat is in horizontality, reduces transverse slat with indulging
Void area between plate, now, can also effectively reduce the evaporation of moisture, and the moisture for absorbing trees is more, more favorably
In growth.
Claims (5)
1. a kind of tree well bottom support plate system with anti-theft feature, it is characterised in that：Including two pieces of supporting plate bodies（1）,
Every piece of supporting plate body（1）Side middle part provided with rectangular indentation（2）, two supporting plate bodies（1）With square
V notch v（2）Part be oppositely arranged, two rectangular indentations for being oppositely arranged constitute trunks and pass through hole, every piece of supporting plate body
（1）Including some pieces of stringer boards（3）And transverse slat（4）, rectangular indentation（2）The stringer board of front and rear sides（3）On to be respectively provided with a locking auxiliary
Assistant piece, the locking auxiliary member includes inverted trapezoidal part and cross break part（17）, the inverted trapezoidal part include the first vertical pole
（18）With the first vertical bar（19）, the first vertical bar（19）Lower end and first vertical pole（18）It is welded to connect, described first
Vertical bar（19）Through the stringer board（3）And extend to the supporting plate body（1）Upper side on, the cross break part
（17）One end and first vertical bar（18）Upper end be welded to connect, the cross break part（17）The other end be provided with locking
Ring（20）, the locking ring of the left and right sides（20）Pass through a U-shape lock（21）Carry out locking.
2. there is the tree well bottom support plate system of anti-theft feature as claimed in claim 1, it is characterised in that：Transverse slat（4）Point
Body is arranged between stringer board, and transverse slat（4）Along the supporting plate body（1）Fore-and-aft direction be arranged at intervals, it is straight in same
Transverse slat on line（4）Pass through a connecting rod（5）Link together, with the rectangular indentation（2）Relatively and positioned at outermost
Transverse slat（4）It is provided with breach（6）, and with breach（6）Transverse slat（4）With the stringer board（3）It is fixedly connected, makes this part transverse slat
（4）It is always plumbness, the transverse slat of other parts（4）With the connecting rod（5）It is fixedly connected, with connecting rod（5）Rotation
And rotate；
In the breach（6）A drive component is inside provided with, drive component includes a stepper motor（7）, a driving chain
（8）With several drives（9）, wherein the drive（9）Positioned at every connecting rod（5）Outboard end, all transmissions
Wheel（8）Pass through same driving chain（8）Link together, the stepper motor（7）Clutch end and one of those
Drive（9）It is fixedly connected, one of stringer board（3）Downside be provided with liquid level sensor（10）, one of stringer board
Upper side be embedded with water sensor（11）, controller（12）One piece of stringer board being fixed therein（3）Downside on, the liquid
Level sensor（10）And water sensor（11）With controller（12）Signal input part connection, water pump be located at the controller in,
Feed tube is connected with the inlet of water pump, feed tube is extended to be connected with out on the bottom of tree well, the liquid outlet of the water pump
Liquid pipe, the one piece of stringer board of drain pipe therefrom（3）Inside extend through to the outside of the supporting plate system；
During initial use state, with breach（6）Transverse slat（4）Transverse slat in addition（4）For horizontality, work as water sensor（11）
Sense that water or rainwater are injected into tree well（13）When interior, controller（12）Control stepper motor（7）Action, stepper motor（7）
Drive connection bar（5）Rotate, connecting rod（5）Drive the transverse slat（4）Rotate, make transverse slat（4）Vertical configuration is turned to from horizontality
State, water can be smoothly entered in tree well；When the water or rainwater that enter in tree well reach the liquid level sensor（10）On
During a period of time, controller（12）The water pump is controlled to carry out pumping action, until tree well（13）Interior water or rainwater are located at institute
State liquid level sensor（10）Under a period of time, now controller（12）Control stepper motor（7）Action, stepper motor（7）Drive
Dynamic connecting rod（5）Rotate, connecting rod（5）Drive the transverse slat（4）Rotate, make the transverse slat of plumbness（4）It is changed into horizontal
State, reduces transverse slat（4）With stringer board（3）Between void area.
3. there is the tree well bottom support plate system of anti-theft feature as claimed in claim 2, it is characterised in that：The supporting plate
System also includes thin-film solar cells, and the thin-film solar cells is set around the periphery of trunk, the thin film solar
The power output end of battery and the controller（12）Power input connection, the controller be the liquid level sensor
（10）, water sensor（11）, stepper motor（7）And water pump is powered.
4. there is the tree well bottom support plate system of anti-theft feature as claimed in claim 2, it is characterised in that：The water sensing
Device（11）Provided with several, when any one water sensor therein senses water or rainwater and continues for some time, control
Device control connecting rod action.
5. there is the tree well bottom support plate system of anti-theft feature as claimed in claim 2, it is characterised in that：The liquid level is passed
Sensor（10）Provided with several, on any one liquid level sensor therein senses water level or rain water level information and is located at
During a period of time, controller control water pump and connecting rod action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112019.0A CN107119530A (en) | 2016-12-07 | 2016-12-07 | Tree well bottom support plate system with anti-theft feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112019.0A CN107119530A (en) | 2016-12-07 | 2016-12-07 | Tree well bottom support plate system with anti-theft feature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107119530A true CN107119530A (en) | 2017-09-01 |
Family
ID=59717835
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112019.0A Pending CN107119530A (en) | 2016-12-07 | 2016-12-07 | Tree well bottom support plate system with anti-theft feature |
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| Country | Link |
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| KR101579040B1 (en) * | 2015-08-10 | 2015-12-21 | 권처현 | Steel plate type protect cover having non-slip member |
| CN105696697A (en) * | 2016-02-22 | 2016-06-22 | 占良辉 | Sewer cover with overturn blocking pieces |
| CN205530587U (en) * | 2016-03-28 | 2016-08-31 | 廖江文 | Gardens drainage system |
| CN205669245U (en) * | 2016-06-17 | 2016-11-02 | 大庆市智力金属加工有限公司 | Self adaptation drainage grill cover plate |
| CN205669244U (en) * | 2016-06-17 | 2016-11-02 | 大庆市智力金属加工有限公司 | A kind of drainage ditch cover plate |
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Application publication date: 20170901 |