CN205062825U - Novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope - Google Patents
Novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope Download PDFInfo
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- CN205062825U CN205062825U CN201520827773.7U CN201520827773U CN205062825U CN 205062825 U CN205062825 U CN 205062825U CN 201520827773 U CN201520827773 U CN 201520827773U CN 205062825 U CN205062825 U CN 205062825U
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- bent line
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- permeable
- side slope
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Abstract
The utility model discloses a novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope, including outer tube, inner tube, top cap and bottom, this outer tube passes through the netted body that permeates water of the bent line of type for half, is formed with first bent line rib and the first hole of permeating water on the outer wall of this outer tube, this inner tube is for pass through the netted toughness of the bent line of the type body that permeates water entirely, is formed with the bent line rib of second and the second hole of permeating water on the outer wall of this inner tube, and removable the overlapping of this inner tube is located in the outer tube with trading. This product can effectively reduce engineering cost indirectly, because of it possess good long -term performance, will subtract by a wide margin and reduce the maintenance cost. Seeing that this new material and new technology are in the convertibility of facing upward the stifled maintenance punishment in -process of oblique wash port silt to corrosion resistance, tolerable hardness, many -sided technological advantages such as ring rigidity, pliability and durability of tubular product are reached, the popularization and application dynamics can be increaseed, so that more economy and social are created in the service engineering construction as early as possible of this technique.
Description
Technical field
The utility model relates to row engineering field technology, refers in particular to the netted water-permeable pipe of a kind of novel side slope bent line of replaceable hard tough combined double-layer.
Background technology
In side slope punishment engineering in the engineerings such as highway, water conservancy, ground, it is the draining punishment mode often adopted that located level faces upward oblique drain hole.Within very long one period, the Slope Construction phase install former what face upward that oblique drain hole adopts is the traditional design method of the material such as PVC plastic pipe outsourcing geotextiles or flexible porous tube, through after a period of time, very easily there is blocking, the drain function entering operation after date is decayed gradually, even lost efficacy, and made the long-term effect of Reinforcement Works of Rock Slopes can not get ensureing, jeopardize engineering stability and highway traffic safety.The traditional material such as PVC or flexible porous tube compressive strength is not high in addition, and under long-term rainwater effect, seepage flow and flowing pressure comprehensive function, material easily occurs corrosion or breaks, thus the durability of oblique drain hole is faced upward in impact.Once there is silting in the later stage, need again to punch and lay or discard, or for ensureing that drainage effect is blindly encrypted, increased drain hole quantity, engineering is caused to waste, cost of maintenance are high, and therefore tradition faces upward oblique drain hole and the material such as PVC plastic pipe outsourcing geotextiles or flexible porous tube is unsuitable for applying in the fields such as drainage works such as side slope, roadbed and tunnels.
" Highway Roadbed Construction Technology specification " (JTDF10-2006) specification, can adopt and face upward the water that inclined drain hole exclusively descends hydrous fluids, regulation has been done to the construction technology of drain hole, through facing upward oblique drain hole Field Research, laboratory test, model testing discovery to High Side Slope of Highway deep layer, the reason that side slope deep layer faces upward oblique drain hole silting is that the use of drain hole structure and material own is unreasonable, and at that time market not having suitable finished material, the function of drain hole can not be guaranteed.What add due to outsourcing material is unreasonable, and cause drain hole after 2 years, silting to occur in use, because this project is concealed work, through repeatedly cleaning trial, effect is undesirable, and new drain hole is laid in redrilling of having to.
In sum, the domestic and international research to aspects such as roadbed seepage field, Drainage Design at present has more achievement, and deep layer gutter has started to be applied in side slope consolidation projects, but over all, is also in the starting stage in this respect both at home and abroad.But along with the increase of the Highway Maintenance time limit, the gutter of this structure receives silting in various degree, has a strong impact on engineering safety.And deep layer faces upward long-term behaviour and the silting eliminating measure research also rare report of oblique drain hole.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide the netted water-permeable pipe of a kind of novel side slope bent line of replaceable hard tough combined double-layer, and it effectively can solve the problem that existing gutter receives silting in various degree.
For achieving the above object, the utility model adopts following technical scheme:
The netted water-permeable pipe of a kind of novel side slope bent line of replaceable hard tough combined double-layer, includes outer tube, interior pipe, top cover and bottom; This outer tube is the netted permeable body of the bent line of semi-transparency type, the outside wall surface of this outer tube is formed with the first bent line rib and the first permeable hole; This interior pipe is the permeable body of the bent netted toughness of line of full-transparency type, the outside wall surface of this interior pipe is formed with the second bent line rib and the second permeable hole, is sheathed in outer tube this interior pipe replaceable; This top cover is installed on the top of outer tube, and this top cover is pyramidal structure with holes; This bottom is installed on the bottom of outer tube, and this bottom is flat mouth drainage stopper with holes.
Preferably, described outer tube is the netted permeable body of the bent line of 1/3 semi-transparency type, and it has impervious layer and pervious layer, and impervious layer occupies 1/3 area of body.
Preferably, the external diameter of described outer tube is 110mm, and the external diameter of this interior pipe is 60mm.
Preferably, described outer tube and interior pipe are modification HDPE material.
Preferably, described outer tube every meter length is formed with number>=2700 of the first permeable hole, perforations per unit area number>=9000/m
2, percent opening is 65%, ring stiffness>=3KN/m
2, bend radius is 30 ~ 40dn, hot strength>=14MPa, and main aperture aperture is 2 ~ 4mm, wall thickness>=5mm, and hoop bent line rib number is 36, creep ratio≤2%.
Preferably, described interior pipe every meter length is formed with number>=4800 of the second permeable hole, perforations per unit area number>=15000/m
2, percent opening is 100%, ring stiffness>=1KN/m
2, bend radius is 20 ~ 30dn, hot strength>=17MPa, and main aperture aperture is 1 ~ 2mm, wall thickness>=3.2mm, and hoop bent line rib number is 26, creep ratio≤2%.
Preferably, described outer tube is multistage, and connected by outer tube joint between adjacent two sections of outer tubes, this outer tube joint is HDPE material, and internal and external walls face is smooth, it is formed with multiple through hole.
Preferably, described interior pipe is multistage, is connected in adjacent two sections between pipe by inner pipe joint, and one end of this inner pipe joint has interior tooth spiral screw thread, and the other end has outer tooth spiral screw thread, and inner pipe joint is HDPE material.
Preferably, the empty supporter of sponge preventing interior pipe from skidding off from outer tube for supporting interior pipe is provided with between described inner and outer tubes.
Preferably, the empty supporter of sponge is hardhead sponge, and with Process on it, small aperture is not more than 2mm, and the thickness of hardhead sponge is 30mm.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
This product effectively can lower construction costs indirectly, because it has good Long-Term Properties, will significantly subtract reduction maintenance cost.In view of this new material and new technology are facing upward the convertibility in oblique drain hole silting maintenance treatment procedure, and the corrosion resistance of tubing, tolerable hardness, ring stiffness, many-sided technical advantage such as pliability and durability, the dynamics of applying can be strengthened, so that the service engineering construction as early as possible of this technology, create more economic and social benefit, this product weight is light, be convenient to transport, can not be detrimental to health, can not pollution of ecological environment, construction is simple, quality is really up to the mark, ooze drainage performance superpower, long service life, easy to maintenance and maintenance cost is low, belong to a kind of novel energy-saving environment-friendly type product.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail:
Accompanying drawing explanation
Fig. 1 is the longitudinal cross-section schematic diagram of the preferred embodiment of the utility model;
Fig. 2 is the transverse sectional view of the preferred embodiment of the utility model;
Fig. 3 is the view in transverse section of the preferred embodiment middle external tube of the utility model;
Fig. 4 is the front view of the preferred embodiment middle external tube of the utility model;
Fig. 5 is the view in transverse section of interior pipe in the preferred embodiment of the utility model;
Fig. 6 is the front view of interior pipe in the preferred embodiment of the utility model;
Fig. 7 is the connection diagram of inner pipe joint in the preferred embodiment of the utility model;
Fig. 8 is the schematic diagram of the preferred embodiment middle external tube joint of the utility model;
Fig. 9 is the schematic diagram of top cover in the preferred embodiment of the utility model;
Figure 10 is the schematic diagram of tail-hood in the preferred embodiment of the utility model;
Figure 11 is the left view of tail-hood in the preferred embodiment of the utility model.
Accompanying drawing identifier declaration:
10, the bent line rib of outer tube 11, first
12, the first permeable hole 13, impervious layer
14, pervious layer 20, interior pipe
21, the second bent line rib 22, second permeable hole
30, top cover 31, through hole
40, bottom 41, through hole
42, flat mouth 50, outer tube joint
51, through hole 60, inner pipe joint
61, interior tooth 62, outer tooth
70, the empty supporter of sponge
Detailed description of the invention
Please refer to shown in Fig. 1 to Figure 11, that show the concrete structure of the preferred embodiment of the utility model, include outer tube 10, interior pipe 20, top cover 30 and bottom 40.
As shown in Figure 3 and Figure 4, this outer tube 10 is the netted permeable body of the bent line of semi-transparency type, the outside wall surface of this outer tube 10 is formed with the first bent line rib 11 and the first permeable hole 12; In the present embodiment, the external diameter of described outer tube 10 is 110mm, this outer tube 10 is modification HDPE material, and, described outer tube 10 is the netted permeable body of the bent line of 1/3 semi-transparency type, and it has impervious layer 13 and pervious layer 14, and impervious layer 13 occupies 1/3 area of body, described outer tube 10 every meter of length is formed with number>=2700 of the first permeable hole 12, perforations per unit area number>=9000/m
2, percent opening is 65%, ring stiffness>=3KN/m
2, bend radius is 30 ~ 40dn, hot strength>=14MPa, and main aperture aperture is 2 ~ 4mm, wall thickness>=5mm, and hoop bent line rib number is 36, creep ratio≤2%.This outer tube 10 diameter that mainly fixing insertion has been bored is in the drain hole of 150mm, never extract again, impervious layer 13 is placed down, be convenient to draining no longer leak in ground with the rainwater protecting infiltration to enter fast, tubing requires to have certain ring stiffness and toughness, ring stiffness is higher, ambient pressure can be born larger, can not be crushed distortion easily, band flexible mainly prevents tubing from rupturing, even rock-soil layer has part sedimentation or extruding, pipe with flexible can be out of shape along with rock-soil layer sedimentation extruding, but can not rupture to such an extent as to have a strong impact on its water permeability.
As shown in Figure 5 and Figure 6, this interior pipe 20 is the permeable body of the bent netted toughness of line of full-transparency type, the outside wall surface of this interior pipe 20 is formed with the second bent line rib 21 and the second permeable hole 22, is sheathed in outer tube 10 this interior pipe 20 replaceable; In the present embodiment, the external diameter of this interior pipe 20 is 60mm, and interior pipe 20 is modification HDPE material, and described interior pipe 20 every meter of length is formed with number>=4800 of the second permeable hole 22, perforations per unit area number>=15000/m
2, percent opening is 100%, ring stiffness>=1KN/m
2, bend radius is 20 ~ 30dn, hot strength>=17MPa, and main aperture aperture is 1 ~ 2mm, wall thickness>=3.2mm, and hoop bent line rib number is 26, creep ratio≤2%.The function of this interior pipe 20 inserts in outer tube 10, specification selects external diameter 60mm to be in order in more convenient insertion outer tube 10, also the type selecting of oozing drain discharge is met in addition, hoop full-transparency type is adopted to be convenient construction, any do not need equally also will divide part down at construction time image outer tube, save the construction period, more effectively can receive the rainwater infiltrated from outer tube 10 simultaneously, toughness tubing is adopted mainly to prevent tubing from rupturing, even rock-soil layer has part sedimentation or extruding, pipe with flexible can be out of shape along with rock-soil layer sedimentation extruding, but can not rupture to such an extent as to have a strong impact on its water permeability.
This top cover 30 is installed on the top of outer tube 10, and as shown in Figure 9, this top cover 30 is pyramidal structure with holes, it is formed with multiple through hole 31.Top cover 30 is one large one small, is mainly enclosed within outer tube 10 one end, and little one facilitates outer tube 10 more easily to insert in drain hole in top, and object with holes is to more rain penetration be entered in outer tube 10.
As shown in Figure 10 and Figure 11, this bottom 40 is installed on the bottom of outer tube 10, and this bottom 40 is flat mouth drainage stopper with holes, it is formed with through hole 41 and flat mouth 42, and bottom 40 major function is discharged in time by rainwater in pipe, and in also stopping, pipe 20 skids off simultaneously.
And described outer tube 10 is multistage, connected between adjacent two sections of outer tubes 10 by outer tube joint 50, as shown in Figure 8, this outer tube joint 50 is HDPE material, and internal and external walls face is smooth, it is formed with multiple through hole 51.The connector of this outer tube joint 50 mainly outer tube 10, usually transport and construction is convenient to, outer tube 10 length generally can not more than 6 meters, but slope drainage hole generally all needs 20 meters-30 meters, brill dark, so this degree of depth will be met, must with so long pipe, so just need straight-through accessory to connect, inner wall smooth conveniently connects, outer wall is smooth is insert in drain hole by outer tube 10 conveniently smoothly fast, and object with holes is in order to effective rain penetration by connecting portion place is entered in outer tube 10.
Described interior pipe 20 is multistage, is connected in adjacent two sections between pipe 20 by inner pipe joint 60, and one end of this inner pipe joint 60 has interior tooth spiral screw thread 61, and the other end has outer tooth spiral screw thread 62, and inner pipe joint 60 is HDPE material.Although inner pipe joint 60 is independent, but can by two joints before dispatching from the factory, in a band, tooth, an outer tooth of band adopt special fusing soldering welder to be welded on interior pipe 20 two respectively, main purpose facilitates workman to construct, spiral is only needed to connect between tube and tube, be similar to the turn of the screw the same, understand at a glance, do not need to buy connector in addition again, save buying trouble, mainly can more effectively be extracted from outer tube by interior pipe and be unlikely to come off when being convenient cleaning, this connector to belong in whole compound tube very important one.
In addition, the empty supporter 70 of sponge preventing interior pipe 20 from skidding off from outer tube 10 for supporting interior pipe 20 is provided with between described interior pipe 20 and outer tube 10, in the present embodiment, the empty supporter 70 of sponge is hardhead sponge, with Process on it, small aperture is not more than 2mm, and the thickness of hardhead sponge is 30mm, also contributes to rapid infiltrated and stop that soil erosion is excessive with Process.
During use, outer tube 10 is fixed in ground, interior pipe 20 inserts in outer tube 10, regularly interior pipe 20 can be extracted, pipe 20 surface and the inner silt of outer tube 10 in rinsing with high pressure air pressure or hydraulic giant, if interior pipe 20 has damaged, only need to change interior pipe 20, need not redrilling charity is new again drain hole, reduce maintenance cost, shorten maintenance man-hours.
Adopt the utility model construct, relative to traditional structure and material, its key point be following some:
Solve conventional discharge structure and material cannot clear up because of drain hole silting the redrilling caused, need the problem spending sky high cost.
Solve tradition to ooze drainage pipe and need outsourcing geotextiles, be easy to silting, the problem that effective service life is too short.
Solve tradition ooze the artificial punching on tube wall of draining PVC needs and add cost of labor and the problem that have impact on construction speed.
Solve tradition and ooze that draining PVC drain pipe material is very crisp, frangible, easy fracture, affect the problem of construction quality, serious needs bores drain hole again.
Solve tradition to ooze draining PVC drain pipe and need Manual punching, the problem that the quality and quantity in hole cannot ensure.
Add cleaned and changed function, reduce maintenance cost, reduce maintenance times, shorten and safeguard the duration, improve construction technology and material structure, construct more convenient, can the reduction of erection time 30%.
Improve workmanship, effectively reducing the highway subgrade that causes because amount of rainfall is excessive across collapsing and the generation of the serious accident such as landslide.
Extend application life, save later stage construction cost.
In sum, the utility model effectively can lower construction costs indirectly, because it has good Long-Term Properties, will significantly subtract reduction maintenance cost.In view of this new material and new technology are facing upward the convertibility in oblique drain hole silting maintenance treatment procedure, and many-sided technical advantage such as the corrosion resistance of tubing, tolerable hardness, ring stiffness, pliability and durability, dynamics is applied in suggestion increasing, so that the service engineering construction as early as possible of this technology, creates more economic and social benefit.Promoting the use of the utility model is a civilian-oriented project.
Widely, market potential is very big for the utility model application prospect, and the structure of its uniqueness may be used in other project equally, and embody rule scope is as follows: road foundation preventive works; Highway and railway cutting slope defending engineering; Tunnel side wall preventive works; Bridge cone side slope protection engineering; Garbage loading embeading stockyard rain effluent discharge project; Storm-water drainage below sports turf; Storm-water drainage and the collection irrigation district project on farm, gardens; Reservoir and hydraulic engineering dam preventive works.
This product mainly replaces traditional PVC perforated pipe or flexible porous tube, and between them, main pluses and minuses contrast by such as following table 1:
Table 1 water-permeable pipe comparison table
Intuitively can find out that from above contrast table this product tool has the following advantages:
(1): long service life, the corrosivity such as acid and alkali-resistance are strong, use and undergo no deterioration for more than 50 years.
(2): ring stiffness is high, ring is flexible, can not cause fracture damage because of massif sedimentation or other external force reason.
(3): reduce the wastage, save the duration, construction is easily understood, and reduces waste of material, and because construction environment reason needs sawed-off for whole piece tubing, another section can continue to use.
(4): percent opening is large, and water permeability is high.
(5): reduce soil erosion, rational in infrastructure, there is interior pipe void to support and stop soil erosion.
(4): later maintenance cost is low, the interior pipe of capable of washing or replacement, reduces unnecessary repetition machine perforate.
(5): material is light, transport is convenient to.
(6): energy-conserving and environment-protective, it is few that material includes the amount of pollutant such as radioactivity or heavy metal, can not pollute soil.
(7): effectively reduce landslide accident rate, high than like product effect more than 50 times.
This product can be widely used in all side slopes and ooze Drainage Projects, and present stage is mainly for the application at highway in Guangdong province roadbed side slope, cutting, position such as nursing such as bridge cone slope and tunnel side wall etc.
This product weight is light, is convenient to transport, can not be detrimental to health, can not pollution of ecological environment, and construction is simple, and quality is really up to the mark, oozes drainage performance superpower, long service life, easy to maintenance and maintenance cost is low, belongs to a kind of novel energy-saving environment-friendly type product.
China is at highway, water conservancy, in side slope punishment engineering in the engineerings such as ground, within very long one period, owing to adopting the materials such as traditional PVC plastic perforated pipe outsourcing geotextiles or flexible porous tube in conjunction with traditional oblique drainage hole structure of facing upward always, often there is the situation of slope drainage hole silting, ponding can not effectively be discharged, slope treatment is unsuccessful, will repeat to do over again, rework cost is high, calculate according to every hole rework cost 6000 yuan, the annual rework cost caused because slope treatment is improper is up to 3,000,000,000 yuan, annual rainy season is because of landslide, roadbed occurs across the security incident such as to collapse, directly to other heavy economic losses that the country and people causes, conservative estimation, annual up to 1,000,000,000 yuan, slope treatment is bad, once have an accident, namely Lao Minyou loses money,
Adopt this product to coordinate Novel replaceable to face upward oblique drainage hole structure and carry out slope controlling, because toughness of material is high in its combination, can not ruptures, have superpower acid-alkali-corrosive-resisting, so application life is just long, add replaceable capable of washing, probability of doing over again is extremely low; The permeable hole of tubing own is intensive, mechanism adopts siphon principle, permeable amount is large, speed is fast, so the safety of side slope effectively can be ensured, and the propagation and employment of the netted water-permeable pipe of the bent line of replaceable hard tough combined double-layer, significant benefit will be brought to country and society, meaning is very far-reaching, by scientific analysis, applies the netted water-permeable pipe of the bent line of replaceable hard tough combined double-layer and will play following effect:
1, in Guangdong Province, expressway slope is administered in maintenance, and annual mean can save maintenance cost more than 8,000,000 yuan.
2, in Guangdong Province express highway roadbed, bridge, the annual mean of the anti-position of side slope such as tunnel reduce across the size security incident about more than 60 times such as collapsing.
3, in Guangdong Province, annual mean reduces the national direct economic loss 100,000,000 yuan because soil erosion and landslide event cause.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (10)
1. the netted water-permeable pipe of the novel side slope bent line of replaceable hard tough combined double-layer, is characterized in that: include outer tube, interior pipe, top cover and bottom; This outer tube is the netted permeable body of the bent line of semi-transparency type, the outside wall surface of this outer tube is formed with the first bent line rib and the first permeable hole; This interior pipe is the permeable body of the bent netted toughness of line of full-transparency type, the outside wall surface of this interior pipe is formed with the second bent line rib and the second permeable hole, is sheathed in outer tube this interior pipe replaceable; This top cover is installed on the top of outer tube, and this top cover is pyramidal structure with holes; This bottom is installed on the bottom of outer tube, and this bottom is flat mouth drainage stopper with holes.
2. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, is characterized in that: described outer tube is the netted permeable body of the bent line of 1/3 semi-transparency type, and it has impervious layer and pervious layer, and impervious layer occupies 1/3 area of body.
3. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, it is characterized in that: the external diameter of described outer tube is 110mm, the external diameter of this interior pipe is 60mm.
4. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, is characterized in that: described outer tube and interior pipe are modification HDPE material.
5. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, is characterized in that: described outer tube every meter length is formed with number>=2700 of the first permeable hole, perforations per unit area number>=9000/m
2, percent opening is 65%, ring stiffness>=3KN/m
2, bend radius is 30 ~ 40dn, hot strength>=14MPa, and main aperture aperture is 2 ~ 4mm, wall thickness>=5mm, and hoop bent line rib number is 36, creep ratio≤2%.
6. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, is characterized in that: described interior pipe every meter length is formed with number>=4800 of the second permeable hole, perforations per unit area number>=15000/m
2, percent opening is 100%, ring stiffness>=1KN/m
2, bend radius is 20 ~ 30dn, hot strength>=17MPa, and main aperture aperture is 1 ~ 2mm, wall thickness>=3.2mm, and hoop bent line rib number is 26, creep ratio≤2%.
7. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, it is characterized in that: described outer tube is multistage, connected by outer tube joint between adjacent two sections of outer tubes, this outer tube joint is HDPE material, internal and external walls face is smooth, it is formed with multiple through hole.
8. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, it is characterized in that: described interior pipe is multistage, connected by inner pipe joint between pipe in adjacent two sections, one end of this inner pipe joint has interior tooth spiral screw thread, the other end has outer tooth spiral screw thread, and inner pipe joint is HDPE material.
9. the netted water-permeable pipe of the novel side slope as claimed in claim 1 bent line of replaceable hard tough combined double-layer, is characterized in that: be provided with the empty supporter of sponge preventing interior pipe from skidding off from outer tube for supporting interior pipe between described inner and outer tubes.
10. the netted water-permeable pipe of the novel side slope as claimed in claim 9 bent line of replaceable hard tough combined double-layer, is characterized in that: the empty supporter of sponge is hardhead sponge, and with Process on it, small aperture is not more than 2mm, and the thickness of hardhead sponge is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827773.7U CN205062825U (en) | 2015-10-21 | 2015-10-21 | Novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827773.7U CN205062825U (en) | 2015-10-21 | 2015-10-21 | Novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205062825U true CN205062825U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827773.7U Expired - Fee Related CN205062825U (en) | 2015-10-21 | 2015-10-21 | Novel removable hard netted pipe that permeates water of double -deck bent line of tough combination of side slope |
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| CN (1) | CN205062825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275001A (en) * | 2015-10-21 | 2016-01-27 | 广东华路交通科技有限公司 | Novel replaceable hard and rigid combined double-layer curved-grain net-shaped pervious pipe for slope |
-
2015
- 2015-10-21 CN CN201520827773.7U patent/CN205062825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275001A (en) * | 2015-10-21 | 2016-01-27 | 广东华路交通科技有限公司 | Novel replaceable hard and rigid combined double-layer curved-grain net-shaped pervious pipe for slope |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20201021 |