CN202248308U - Seepage-proofing device for deformation joint of concrete structure - Google Patents
Seepage-proofing device for deformation joint of concrete structure Download PDFInfo
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- CN202248308U CN202248308U CN2011203568526U CN201120356852U CN202248308U CN 202248308 U CN202248308 U CN 202248308U CN 2011203568526 U CN2011203568526 U CN 2011203568526U CN 201120356852 U CN201120356852 U CN 201120356852U CN 202248308 U CN202248308 U CN 202248308U
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- deformation joint
- waterstop
- movement joint
- concrete structure
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- 238000007789 sealing Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims description 23
- 229920001971 elastomer Polymers 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 10
- 238000007569 slipcasting Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000004814 polyurethane Substances 0.000 description 8
- 238000004873 anchoring Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 230000008961 swelling Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004589 rubber sealant Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The utility model discloses a concrete structure movement joint's prevention of seepage device, including the movement joint body, movement joint body middle part is provided with first waterstop, first waterstop separates the movement joint body for upper strata and lower floor, the lower floor is filled there is the plugging agent, the upper strata is filled there is non-curing material, the upper strata top is provided with the second waterstop, the second waterstop is fixed in the seam mouth both sides of movement joint, and the second waterstop is sunken to this internal in movement joint. The utility model discloses a high pressure slip casting construction mode pours into the leaking stoppage agent into in the movement joint lower floor, adopts low pressure slip casting construction mode to pour into non-solidification material in the movement joint upper strata, and at movement joint mouth department installation detachable or built-in sealing water stop, can prevent effectively that the seepage from appearing in the movement joint, and the antiseep time is longer, can not receive the influence of environment, and stability is better, has the value of using widely.
Description
Technical field
The utility model relates to building field, particularly relates to a kind of percolator of concrete structure deformation joint.
Background technology
Develop rapidly along with society; More and more new big scale of constructions, the building of large scale are constantly built, because building is too huge, consider the influence of factors such as flexible, sedimentation and antidetonation; Adopt the way of reserving deformation joint during design; Solving the problem on deformation that produces because of factors such as the temperature difference, sedimentation and antidetonations, yet because the factor affecting of aspects such as technology, design, material, construction and cost, the waterproof at deformation joint position is to become link of weakness; Seepage very easily occurring, almost is nine leakages of ten seams.Deformation joint oozes, leaks; Cause the seam both sides mouldy because of infiltration, the pollution blackout of leaking; Influence the attractive in appearance and function of use of building, even more serious will have influence on durability of structures and safety, and the seepage of deformation joint has become one of key factor of workmanship; Therefore for guaranteeing structural safety is used with normal, must conscientiously be administered leakage problems.Because its leakage cause complicated and changeable, the seepage of deformation joint have become the focus of paying close attention in the industry, administer also more thorny.
The seepage main cause of deformation joint has: 1, concrete placing is preceding to the waterstop in the deformation joint, does not take feasible fixation or fixing means improper; 2, waterstop joint lap-joint bonding is bad, can not form the water proof ring of sealing; 3, because concrete vibrating is not tight, the place leaves the space at waterstop, becomes the passage of percolating water; 4, uneven because of foundation settlement, building produces distortion, and waterstop is overstepped the extreme limit by drawing crack, causes percolating water.
Because the formed concretion body strength of oil soluble polyurethane is big, anti-permeability is good, but elasticity is little; Plugging effect is relatively poor at the water burst place, generally all is to inject aqueous polyurethane, lets aqueous polyurethane and water react; Expand; Leakage area is blocked the effect that reaches leak stopping, but the time one is long, still the seepage phenomenon can occur.
The gel of soluble polyurethane forms induration with water reaction back in deformation joint, induration can absorb certain moisture and swelling, and then produces pressure, blocks leakage passage.Weak point is under the situation of the long-term dehydration of induration of water absorption and swelling, also can dehydration shrink, and the induration after shrinking meet once more water can not swelling or swelling ratio not enough, then very likely cause having lost waterproof effect and " the multiple leakage ".
Generally the administration way in concrete broken crack is employed in the avris boring of concrete faulted joint more, buries Water slop injector, ejection for water plugging.This has certain stagnant water effect, but begins again after a while to leak.If in a sidetracking hole of concrete faulted joint, shutoff is not done at former concrete faulted joint place again, and slurries just can't get into the deformation joint depths.After slurries were injected into, there was water the below of slurries, and water is incompressible, and the top deformation joint does not have constraint, and slurries very natural flow to the top under very little pressure effect, and have condensed.Above being stitched by the pressure extrusion deformation under the unconfined situation, at this moment just be identified as slip casting and finish.The water of below, slit remains water, and the top is merely the gel of one deck polyurethane, in case behind the polyurethane expander dehydration drying shrinkage on top layer, begin seepage again.
The utility model content
The technical problem that the utility model mainly solves provides a kind of percolator of concrete structure deformation joint, has anti-seepage effect preferably, has guaranteed the reliability and stability of building.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of percolator of concrete structure deformation joint is provided, comprises the deformation joint body; Said deformation joint body middle part is provided with first waterstop; Said first waterstop is divided into the upper and lower with the deformation joint body, and said lower floor is filled with sealing agent, and said upper strata is filled with non-solidifying substance; Top, said upper strata is provided with second waterstop, and said second waterstop is fixed on the sealing both sides of deformation joint.
In preferred embodiment of the utility model, the sealing of said deformation joint body is provided with groove, and said second waterstop is arranged in the groove, and second waterstop is to deformation joint body sunken inside.
In preferred embodiment of the utility model; Said second waterstop is built-in rubber fastening band; Built-in rubber fastening band both sides are adhesive with rubber strip respectively, and the rubber strip top covers the layer of metal cover plate, and said built-in rubber fastening band is fixed through crab-bolt or adhesive.
In preferred embodiment of the utility model, said second waterstop is the steel plate water-stopping band, and said built-in sealing steel plate water-stopping band is directly fixing through crab-bolt or adhesive.
In preferred embodiment of the utility model; Said deformation joint body both sides evenly offer some inclined holes respectively; Be provided with intrusion pipe in the said inclined hole, said intrusion pipe comprises upstream face high pressure pouring pipe and back side low-pressure injection pipe, and said upstream face high pressure pouring pipe is connected with deformation joint lower floor; Said back side low-pressure injection pipe is connected with the deformation joint upper strata, and said intrusion pipe is the setting of 30-60 degree.
In preferred embodiment of the utility model, said first waterstop comprises Water slop injector and high pressure plug.
The beneficial effect of the utility model is: the utility model adopts the high-pressure slip-casting form of construction work to inject sealing agent in deformation joint lower floor; Adopt the low-pressure grouting form of construction work to pour into non-solidifying substance, detachable or built-in hermetic seal band are installed at deformation joint sealing place, can prevent effectively that seepage from appearring in deformation joint on the deformation joint upper strata; And the antiseep time is longer; Can not receive the influence of environment, stability better has popularizing value.
Description of drawings
Fig. 1 is the detachable waterstop leakage preventing structure that the utility model concrete structure deformation joint adopts the chemical anchor bolts anchoring;
Fig. 2 is the local enlarged diagram of A among Fig. 1;
Fig. 3 is that the utility model concrete structure deformation joint adopts adhesive to solidify to form the detachable waterstop leakage preventing structure of anchored end anchoring;
Fig. 4 is the middle-set-type waterstop leakage preventing structure that the utility model concrete structure deformation joint adopts the chemical anchor bolts anchoring;
Fig. 5 is that the utility model concrete structure deformation joint adopts adhesive to solidify to form the middle-set-type waterstop leakage preventing structure of anchored end anchoring;
The mark of each parts is following in the accompanying drawing: 1, rubber strip, 2, built-in rubber fastening band, 3, metal cover board, 4, pad; 5, nut, 6, crab-bolt, 7, back side low-pressure injection pipe, 8, non-solidifying substance; 9, sealing agent, 10, upstream face high pressure pouring pipe, 11, first waterstop.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
The utility model embodiment comprises:
A kind of percolator of concrete structure deformation joint; Comprise the deformation joint body, said deformation joint body middle part is provided with first waterstop 11, and said first waterstop 11 is divided into the upper and lower with the deformation joint body; Said lower floor is filled with sealing agent 9; Said upper strata is filled with non-solidifying substance 8, and top, said upper strata is provided with second waterstop, and said second waterstop is fixed on the sealing both sides of deformation joint.
Said second waterstop is built-in rubber fastening band 2, and built-in rubber fastening band 2 both sides are adhesive with rubber strip 1 respectively, and rubber strip 1 top covers layer of metal cover plate 3, and said built-in rubber fastening band 2 is fixed through crab-bolt 6 or adhesive; Said second waterstop also can be built-in sealing steel plate water-stopping band, and said built-in sealing steel plate water-stopping band is directly fixing through crab-bolt 6 or adhesive.Said second waterstop makes second sealing have a deformation range to deformation joint body sunken inside, can prevent to make the second waterstop generation seepage owing to injecting too much non-solidifying substance 8.
A kind of method for treating seepage of concrete structure deformation joint in turn includes the following steps:
Step 1, the inner antiseepage of deformation joint are handled:
1, remove construction obstacle, to remove the construction that deformation joint surface cap, cleaning fracture faces decorative layer and other leak stopping units lost efficacy residual; Materials such as cleaning seam inner foam; Deformation joint surface and internal cleaning is clean, observe concrete seepage place, indicate seepage place;
2, along deformation joint two side perforatings, the aperture is 12-16mm, holes to the 1/2-2/3 degree of depth of groundwork thickness; Pitch-row is between the 150mm-300mm; Can suitably adjust the punching spacing according to the pulp situation at scene, eyelet is arranged along the fracture strike dislocation, can be done suitable adjustment according to the field operation condition;
3, first waterstop 11 is installed, the high pressure plug on first waterstop 11 of screwing is divided into the upper and lower with deformation joint;
4, imbed upstream face high pressure pouring pipe 10 in the deformation joint both sides; Said upstream face high pressure pouring pipe 10 is connected with deformation joint lower floor; Adopt the method for high pressure leak stopping to utilize aqueous polyurethane sealing agent 9 high pressure leak stopping machine to press injection deformation joint lower floor, and the assurance pressure is annotated closely knit;
5, observed 3-5 days,, carry out the secondary high-pressure leak stopping, anhydrous oozing out in seam the position of part still seepage;
6, in case of as because of the deformation joint reasons in structure or repeatedly adopt the construction of operations such as boring method construction causes can't punching in the deformation joint both sides, then adopt following method to construct:
1) the deformation joint inwall is embedded back lining materials, pre-buried upstream face high pressure pouring pipe 10 of while, upstream face high pressure pouring pipe 10 gos deep into the deformation joint lower interior part as far as possible, and upstream face high pressure pouring pipe 10 0.5-1.5m at interval is provided with one;
2) adopt special-purpose perfusion equipment that deformation joint lower floor is poured into, pouring material is water-based or oiliness polyurethane leak-stopping agent 9, treats to seal upstream face high pressure pouring pipe 10 mouths of pipe immediately after slurries flow out, and observes 3-5 days, and part still seepage place is poured into once more.
1, open inclined hole at distortion tape edge spacing 1.5-2 rice, inclined hole is the setting of 30-60 degree, and the aperture is 18-30mm, and it is inner that said inclined hole feeds the deformation joint upper strata, pre-buried back side low-pressure injection pipe 7 in inclined hole;
2, adopt the modified epoxy mudding to close back side low-pressure injection pipe 7 mouths of pipe, and guarantee that the pipe outside is closely knit, set up back side low-pressure injection pipe 7 in partial structurtes complicacy or corner portions, in case individual tubes is blocked when follow-up construction;
1, unwrapping wire punching is as requested implanted chemical anchor bolts 6 with chemical adhesive;
2, the preferred 300mm of chemical anchor bolts 6 spacings can suitably encrypt at corner.
1, base treatment: built-in hermetic seal band 2 or built-in sealing steel plate water-stopping band are installed are cleared up the also repair distortion seam both sides interior basic unit of each 100mm scope at present, and should accomplish that basic unit is firm, closely knit, smooth; The basic unit and the repairing formation degree of depth of can inwardly polishing in case of necessity is not more than the 10mm groove;
2, built-in rubber fastening band 2 is installed:
1) anchored end adopts chemical anchor bolts 6 anchorings (like Fig. 1, shown in Figure 3):
(1) in butyl rubber sealant adhesive tape, built-in rubber fastening band 2 and metal cover board 3 and the punching of chemical anchor bolts 6 correspondence positions, the aperture is than the big 2-3mm of chemical anchor bolts 6 diameters;
(2) directly built-in rubber fastening band 2 is pasted on the deformation joint both sides with the butyl rubber sealant adhesive tape, covers pad 4 and nut 5, and compress with chemical anchor bolts 6.
2) anchored end adopts the anchored end anchoring (like Fig. 2, shown in Figure 4) that adhesive solidification forms
(1) adopt the matching gel stick to solidify to form anchored end;
(2) directly at the built-in rubber fastening band 2 of anchored end anchoring.
3, built-in sealing steel plate water-stopping band is installed:
1) built-in sealing steel plate water-stopping band is pasted the position and polish, expose wet look;
2) in built-in sealing steel plate water-stopping band and the punching of chemical anchor bolts 6 correspondence positions, the aperture is than the big 2-4mm of chemical anchor bolts 6 diameters;
3) adopt the modified epoxy binding material to paste built-in sealing steel plate water-stopping band, and compress with chemical anchor bolts 6, it is closely knit to guarantee that built-in sealing steel plate water-stopping band combines with the concrete surface, treats can descend the step construction after the glue sclerosis.
1, checks whether each back side low-pressure injection pipe 7 is unobstructed, repair as far as possible as obstructed;
2, non-solidifying substance 8 is not had the fire heating, guarantee its trickling performance;
3, adopt special equipment that non-solidifying substance 8 is poured in the deformation joint along back side low-pressure injection pipe 7; Perfusion is in proper order for from low to high, and sealing back side low-pressure injection pipe 7 all has material to overflow in all back side low-pressure injection pipes 7 when having material to overflow in the back side low-pressure injection pipe 7; Wait for 1-2 hour; In the highest back side low-pressure injection pipe 7, pour into once more, guarantee that material is closely knit in the seam, thereby accomplish the seepage treatment of deformation joint.
The utility model adopts the high-pressure slip-casting form of construction work to inject sealing agent 9 in deformation joint lower floor; Adopt the low-pressure grouting form of construction work to pour into non-solidifying substance 8 on the deformation joint upper strata, detachable or built-in hermetic seal band are installed at deformation joint sealing place, can prevent effectively that seepage from appearring in deformation joint; And the antiseep time is longer; Can not receive the influence of environment, stability better has popularizing value.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model manual and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (6)
1. the percolator of a concrete structure deformation joint; It is characterized in that: comprise the deformation joint body, said deformation joint body middle part is provided with first waterstop (11), and said first waterstop (11) is divided into the upper and lower with the deformation joint body; Said lower floor is filled with sealing agent (9); Said upper strata is filled with non-solidifying substance (8), and top, said upper strata is provided with second waterstop, and said second waterstop is fixed on the sealing both sides of deformation joint.
2. the percolator of concrete structure deformation joint according to claim 1 is characterized in that: the sealing of said deformation joint body is provided with groove, and said second waterstop is arranged in the groove, and second waterstop is to deformation joint body sunken inside.
3. the percolator of concrete structure deformation joint according to claim 1; It is characterized in that: said second waterstop is built-in rubber fastening band (2); Built-in rubber fastening band (2) both sides are adhesive with rubber strip (1) respectively; Rubber strip (1) top covers layer of metal cover plate (3), and said rubber fastening band (2) is fixed through crab-bolt (6) or adhesive.
4. the percolator of concrete structure deformation joint according to claim 1 is characterized in that: said second waterstop is built-in sealing steel plate water-stopping band, and said built-in sealing steel plate water-stopping band is directly fixing through crab-bolt (6) or adhesive.
5. the percolator of concrete structure deformation joint according to claim 1; It is characterized in that: said deformation joint body both sides evenly offer some inclined holes respectively; Be provided with intrusion pipe in the said inclined hole, said intrusion pipe comprises upstream face high pressure pouring pipe (10) and back side low-pressure injection pipe (7), and said upstream face high pressure pouring pipe (10) is connected with deformation joint lower floor; Said back side low-pressure injection pipe (7) is connected with the deformation joint upper strata, and said intrusion pipe is the setting of 30-60 degree.
6. the percolator of concrete structure deformation joint according to claim 1 is characterized in that: said first waterstop (11) comprises Water slop injector and high pressure plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203568526U CN202248308U (en) | 2011-09-22 | 2011-09-22 | Seepage-proofing device for deformation joint of concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203568526U CN202248308U (en) | 2011-09-22 | 2011-09-22 | Seepage-proofing device for deformation joint of concrete structure |
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| Publication Number | Publication Date |
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| CN202248308U true CN202248308U (en) | 2012-05-30 |
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| CN2011203568526U Expired - Lifetime CN202248308U (en) | 2011-09-22 | 2011-09-22 | Seepage-proofing device for deformation joint of concrete structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817382A (en) * | 2012-08-30 | 2012-12-12 | 苏州市建筑科学研究院有限公司 | Repair constructing method of basement deformation joint leakage |
| CN103015538A (en) * | 2011-09-22 | 2013-04-03 | 江苏鼎达建筑新技术有限公司 | Leakage prevention device and leakage treatment method for concrete structure deformation joint |
| CN105297782A (en) * | 2015-11-19 | 2016-02-03 | 东南大学 | Underground concrete structure expansion joint treatment structure and construction method thereof |
| CN107313465A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint sealing structure and its construction method |
| CN109487756A (en) * | 2018-01-20 | 2019-03-19 | 深圳市深水水务咨询有限公司 | The repairing structure and its construction method at the expansion joint of pressurized water transmission box culvert |
| CN111622364A (en) * | 2020-06-09 | 2020-09-04 | 青岛天源伟业保温防水工程有限公司 | Waterproof structure for expansion joint, waterproof construction structure and construction method of waterproof construction structure |
| CN112324476A (en) * | 2020-10-16 | 2021-02-05 | 中铁十四局集团有限公司 | Waterproof gasket, segment, segment ring and construction method that can be melted and injected multiple times |
| CN113216270A (en) * | 2021-06-01 | 2021-08-06 | 深圳市市政设计研究院有限公司 | Structure joint waterproof structure, waterproof wall and construction method of waterproof wall |
-
2011
- 2011-09-22 CN CN2011203568526U patent/CN202248308U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015538A (en) * | 2011-09-22 | 2013-04-03 | 江苏鼎达建筑新技术有限公司 | Leakage prevention device and leakage treatment method for concrete structure deformation joint |
| CN102817382A (en) * | 2012-08-30 | 2012-12-12 | 苏州市建筑科学研究院有限公司 | Repair constructing method of basement deformation joint leakage |
| CN102817382B (en) * | 2012-08-30 | 2016-12-21 | 苏州市建筑科学研究院集团股份有限公司 | The repairerment construction method of basement deformation joint seepage |
| CN105297782A (en) * | 2015-11-19 | 2016-02-03 | 东南大学 | Underground concrete structure expansion joint treatment structure and construction method thereof |
| CN107313465A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint sealing structure and its construction method |
| CN109487756A (en) * | 2018-01-20 | 2019-03-19 | 深圳市深水水务咨询有限公司 | The repairing structure and its construction method at the expansion joint of pressurized water transmission box culvert |
| CN111622364A (en) * | 2020-06-09 | 2020-09-04 | 青岛天源伟业保温防水工程有限公司 | Waterproof structure for expansion joint, waterproof construction structure and construction method of waterproof construction structure |
| CN112324476A (en) * | 2020-10-16 | 2021-02-05 | 中铁十四局集团有限公司 | Waterproof gasket, segment, segment ring and construction method that can be melted and injected multiple times |
| CN113216270A (en) * | 2021-06-01 | 2021-08-06 | 深圳市市政设计研究院有限公司 | Structure joint waterproof structure, waterproof wall and construction method of waterproof wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU DINGDA HIGH-TECH. CONSTRUCTION CO., LTD. Free format text: FORMER OWNER: DINGDA BUILDING NEW TECHN CO., LTD., CHANGZHOU Effective date: 20120720 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120720 Address after: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Co-patentee after: Changzhou Architectural Research Institute Co., Ltd. Patentee after: Jiangsu Dingda Building New Technology Co., Ltd. Address before: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Co-patentee before: Changzhou Architectural Research Institute Co., Ltd. Patentee before: Changzhou Dingda Building New Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20160803 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20160803 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |