CN220725103U - Repairing device for repairing concrete cracks by microorganisms - Google Patents
Repairing device for repairing concrete cracks by microorganisms Download PDFInfo
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- CN220725103U CN220725103U CN202322120716.2U CN202322120716U CN220725103U CN 220725103 U CN220725103 U CN 220725103U CN 202322120716 U CN202322120716 U CN 202322120716U CN 220725103 U CN220725103 U CN 220725103U
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- sliding rails
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- 244000005700 microbiome Species 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 230000008439 repair process Effects 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 230000000813 microbial effect Effects 0.000 description 14
- 238000007569 slipcasting Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005067 remediation Methods 0.000 description 2
- 230000008263 repair mechanism Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model provides a repairing device for repairing concrete cracks by microorganisms. The repairing device for repairing concrete cracks by microorganisms comprises: a bottom plate; the support is arranged at the top of the bottom plate; the charging basket is arranged on the support; the limiting plate is fixedly arranged on the support; the limiting rods are fixedly arranged at the bottoms of the limiting plates and fixedly connected with the support; the lifting mechanism is arranged at the top of the bottom plate; the repairing mechanism is arranged on one side of the support; the extrusion guide mechanism is arranged on the support. The repairing device for repairing the concrete cracks by microorganisms has the advantages of time and labor saving in repairing operation, convenience in repairing the cracks at the high part of the wall and convenience in operation.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a repairing device for repairing concrete cracks by microorganisms.
Background
At present, research on prevention and treatment of crack diseases of PHC pipe piles of ports and wharfs at home and abroad is mainly focused on physical and chemical means, and the existing mechanical and physical methods such as externally attached steel plates or carbon fiber cloth and externally coated concrete have the defects of long reinforcement time, poor durability, high cost and the like, and the chemical methods such as polymer slurry, coating sealing and the like have the defects of easy aging, marine environment pollution and the like, so that the problem of crack prevention and treatment cannot be effectively and reasonably solved, and the construction and the safe operation of ports and wharfs are affected. Therefore, research and development of advanced, reliable and environment-friendly new technology is urgent, and powerful technical support is provided for the construction and safe operation of ports and docks.
The microbial grouting technology mainly adopts the cross discipline means such as geotechnical engineering, microbial engineering, material science and the like, utilizes specific microorganisms in nature to catalyze urea hydrolysis to produce calcium carbonate crystals with gelling property, and the crystals are deposited and adsorbed in cracks of the large-diameter PHC pipe pile and have good compatibility with pile body concrete, so that the cracks are filled densely, the durability is good, the erosion resistance of the PHC pipe pile can be effectively improved, the permeability is reduced, and the structural performance and the service life of the PHC pipe pile are improved. Compared with the traditional cementing material, the microbial grouting material has the advantages of low viscosity, good fluidity, strong permeability, adjustable reaction rate and cementing strength, less environmental pollution and the like, belongs to a novel environment-friendly microbial grouting material with low energy consumption and low emission, and is a research hot spot of the current marine material.
The concrete can also have the problems of cracking, water seepage, falling off and the like in the using process for a long time, and the problems not only can influence the beauty of a building, but also can influence the safety of the building. In order to solve these problems, in recent years, microbial remediation technology has been widely used in the remediation and protection of concrete. In the process of repairing concrete cracks by using the microbial repair slurry, a repair device is required to be used for repairing the concrete cracks.
However, the existing repairing device for repairing concrete cracks by microorganisms is used for repairing the cracks of the building wall by using a manual repairing device, so that repairing operation is time-consuming and labor-consuming, and the cracks at a higher position are required to be erected for operation, so that the safety is low.
Accordingly, there is a need to provide a repair device for repairing concrete cracks with microorganisms that solves the above-mentioned technical problems.
Disclosure of Invention
The utility model provides a repairing device for repairing concrete cracks by microorganisms, which aims to solve the technical problems that the repairing operation of the existing repairing device for repairing concrete cracks by microorganisms is time-consuming and labor-consuming and is inconvenient to repair the cracks at higher positions.
The repairing device for repairing concrete cracks by microorganisms provided by the utility model comprises the following components: a bottom plate; the support is arranged at the top of the bottom plate; the charging basket is arranged on the support; the limiting plate is fixedly arranged on the support; the limiting rods are fixedly arranged at the bottoms of the limiting plates and fixedly connected with the support; the lifting mechanism is arranged at the top of the bottom plate; the repairing mechanism is arranged on one side of the support; the extrusion guide mechanism is arranged on the support.
Preferably, the lifting mechanism comprises a plurality of transverse plates, a plurality of first screw rods, a first servo motor, a plurality of driving synchronous wheels and a plurality of driven synchronous wheels, wherein the transverse plates are fixedly installed on the support, the first screw rods are rotatably installed at the top of the bottom plate, the first screw rods are respectively in threaded connection with the transverse plates, the first servo motor is fixedly installed at the top of the bottom plate, the driving synchronous wheels are fixedly sleeved on the output shaft of the first servo motor, the driven synchronous wheels are fixedly sleeved on the first screw rods respectively, and the driving synchronous wheels and the driven synchronous wheels are sleeved with a plurality of synchronous belts.
Preferably, the repairing mechanism comprises a plurality of longitudinal electric sliding rails, a plurality of transverse electric sliding rails, a mounting frame and a material injection head, wherein the longitudinal electric sliding rails are fixedly mounted on one side of the support, the transverse electric sliding rails are fixedly mounted on a plurality of output blocks of the longitudinal electric sliding rails, the mounting frame is fixedly mounted on the output blocks of the transverse electric sliding rails, and the material injection head is arranged on the mounting frame.
Preferably, the extrusion guide mechanism comprises a guide pipe, a second servo motor, a second screw rod, a sliding plate, an L-shaped plate, a connecting rod and a pressing plate, wherein the guide pipe is arranged at the bottom of the charging basket, the guide pipe is communicated with the charging head, the second servo motor is fixedly arranged at the top of the limiting plate, the second screw rod is rotatably arranged on the limiting plate, the second screw rod is rotatably connected with the support, the second screw rod is fixedly connected with an output shaft of the second servo motor, the sliding plate is sleeved with threads on the second screw rod, the sliding plate is slidably connected with a plurality of limiting rods, the L-shaped plate is fixedly arranged at one side of the sliding plate, the connecting rod is fixedly arranged on the L-shaped plate, the pressing plate is fixedly arranged at the bottom end of the connecting rod, and the pressing plate is slidably connected with the inner wall of the charging basket.
Preferably, one side of the mounting frame is provided with a plurality of laser scanning cameras.
Preferably, a controller is arranged on the charging basket, and the controller is electrically connected with the first servo motor, the plurality of longitudinal electric sliding rails, the transverse electric sliding rails, the second servo motor and the plurality of laser scanning cameras.
Preferably, a plurality of universal wheels are arranged at the bottom of the bottom plate, and limiting blocks are fixedly arranged at the top ends of the first screw rods.
Compared with the related art, the repairing device for repairing the concrete cracks by the microorganisms has the following beneficial effects:
the utility model provides a repairing device for repairing concrete cracks by microorganisms, which can adjust the height of a repairing mechanism through a lifting mechanism, so that the device can repair the cracks at the higher position of a wall more conveniently, repair the cracks on the wall through the repairing mechanism in a time-saving and labor-saving manner, extrude microbial repairing slurry in a charging bucket to the cracks on the wall through an extrusion material guide mechanism, scan the structure and the direction of the cracks through a plurality of laser scanning cameras, and control the transverse or longitudinal movement of a material injection head through a plurality of longitudinal electric sliding rails and a plurality of transverse electric sliding rails according to the structure and the direction data of the cracks scanned by the plurality of laser scanning cameras, thereby enabling the material injection head to move along the direction of the cracks, injecting the microbial repairing slurry into the cracks, controlling the device through a controller, enabling the device to move more conveniently through a plurality of universal wheels, and limiting a plurality of transverse plates on a plurality of first screws through a plurality of limiting blocks.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a repairing apparatus for repairing concrete cracks by microorganisms according to the present utility model;
FIG. 2 is a schematic diagram of the front view of FIG. 1;
fig. 3 is a schematic view of a three-dimensional assembly structure of the slide plate, the L-shaped plate, the connecting rod and the pressing plate in fig. 1.
Reference numerals in the drawings: 1. a bottom plate; 2. a support; 3. a charging barrel; 4. a limiting plate; 5. a limit rod; 6. a cross plate; 7. a first screw; 8. a first servo motor; 9. a driving synchronizing wheel; 10. a driven synchronizing wheel; 11. a longitudinal electric slide rail; 12. a transverse electric sliding rail; 13. a mounting frame; 14. a material injection head; 15. a material guiding pipe; 16. a second servo motor; 17. a second screw; 18. a sliding plate; 19. an L-shaped plate; 20. a connecting rod; 21. a pressing plate; 22. a laser scanning camera; 23. and a controller.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Referring to fig. 1-3 in combination, fig. 1 is a schematic structural diagram of a repairing apparatus for repairing concrete cracks by microorganisms according to a preferred embodiment of the present utility model; FIG. 2 is a schematic diagram of the front view of FIG. 1; fig. 3 is a schematic view of a three-dimensional assembly structure of the slide plate, the L-shaped plate, the connecting rod and the pressing plate in fig. 1. The repairing device for repairing concrete cracks by microorganisms comprises: a base plate 1; a support 2, wherein the support 2 is arranged on the top of the bottom plate 1; the charging basket 3 is arranged on the support 2; the limiting plate 4 is fixedly arranged on the support 2; the limiting rods 5 are fixedly arranged at the bottoms of the limiting plates 4, and the limiting rods 5 are fixedly connected with the support 2; the lifting mechanism is arranged at the top of the bottom plate 1; a repairing mechanism arranged at one side of the support 2; the extrusion guide mechanism is arranged on the support 2, the height of the repair mechanism can be adjusted through the lifting mechanism, so that the device can repair the crack at the higher position of the wall more conveniently, the crack on the wall can be repaired through the repair mechanism more time-saving and labor-saving, the microbial repair slurry in the charging basket 3 can be extruded to the crack on the wall through the extrusion guide mechanism, the structure and the direction of the crack are scanned through the plurality of laser scanning cameras 22, and the controller 23 controls the transverse or longitudinal movement of the injection head 14 according to the crack structure and the direction data scanned by the plurality of laser scanning cameras 22 and through the plurality of longitudinal electric sliding rails 11 and the transverse electric sliding rails 12, so that the injection head 14 moves along the direction of the crack, and the microbial repair slurry is injected into the crack.
The lifting mechanism comprises a plurality of transverse plates 6, a plurality of first screw rods 7, a first servo motor 8, a plurality of driving synchronous wheels 9 and a plurality of driven synchronous wheels 10, wherein the transverse plates 6 are fixedly installed on the support 2, the first screw rods 7 are rotatably installed at the top of the bottom plate 1, the first screw rods 7 are respectively in threaded connection with the transverse plates 6, the first servo motor 8 is fixedly installed at the top of the bottom plate 1, the driving synchronous wheels 9 are fixedly sleeved on the output shafts of the first servo motor 8, the driven synchronous wheels 10 are fixedly sleeved on the first screw rods 7, the driving synchronous wheels 9 and the driven synchronous wheels 10 are sleeved with a plurality of synchronous belts, and the height of the repairing mechanism can be adjusted through the lifting mechanism, so that the device can repair cracks at a higher position of a wall conveniently.
The repairing mechanism comprises a plurality of longitudinal electric sliding rails 11, transverse electric sliding rails 12, a mounting frame 13 and a filling head 14, wherein the longitudinal electric sliding rails 11 are fixedly mounted on one side of the support 2, the transverse electric sliding rails 12 are fixedly mounted on a plurality of output blocks of the longitudinal electric sliding rails 11, the mounting frame 13 is fixedly mounted on the output blocks of the transverse electric sliding rails 12, the filling head 14 is arranged on the mounting frame 13, and cracks on a wall can be repaired in a time-saving and labor-saving manner through the repairing mechanism.
The extrusion guide mechanism comprises a guide pipe 15, a second servo motor 16, a second screw rod 17, a sliding plate 18, an L-shaped plate 19, a connecting rod 20 and a pressing plate 21, wherein the guide pipe 15 is arranged at the bottom of the charging basket 3, the guide pipe 15 is communicated with the injection head 14, the second servo motor 16 is fixedly arranged at the top of the limiting plate 4, the second screw rod 17 is rotatably arranged on the limiting plate 4, the second screw rod 17 is rotatably connected with the support 2, the second screw rod 17 is fixedly connected with an output shaft of the second servo motor 16, the sliding plate 18 is sleeved on the second screw rod 17 in a threaded manner, the sliding plate 18 is in sliding connection with a plurality of limiting rods 5, the L-shaped plate 19 is fixedly arranged at one side of the sliding plate 18, the connecting rod 20 is fixedly arranged on the L-shaped plate 19, the pressing plate 21 is fixedly arranged at the bottom end of the connecting rod 20, the pressing plate 21 is slidably connected with the inner wall of the charging basket 3, and the microbial slurry in the charging basket 3 can be repaired to the wall through the extrusion guide mechanism.
One side of the mounting frame 13 is provided with a plurality of laser scanning cameras 22, the structure and the direction of the crack are scanned by the plurality of laser scanning cameras 22, and the controller 23 controls the injection head 14 to move transversely or longitudinally through the plurality of longitudinal electric sliding rails 11 and the transverse electric sliding rails 12 according to the structure and the direction data of the crack scanned by the plurality of laser scanning cameras 22, so that the injection head 14 moves along the direction of the crack, and the microbial repair slurry is injected into the crack.
The charging basket 3 is provided with a controller 23, the controller 23 is electrically connected with the first servo motor 8, the plurality of longitudinal electric sliding rails 11, the transverse electric sliding rails 12, the second servo motor 16 and the plurality of laser scanning cameras 22, and the device can be operated and controlled through the controller 23.
The bottom of bottom plate 1 is provided with a plurality of universal wheels, and is a plurality of the equal fixed mounting in top of first screw rod 7 has the stopper, can make the device remove comparatively conveniently through a plurality of universal wheels, can be with a plurality of diaphragm 6 spacing on a plurality of first screw rods 7 through a plurality of stopper.
The working principle of the repairing device for repairing concrete cracks by microorganisms provided by the utility model is as follows:
during the use, with microorganism restoration thick liquid injection storage bucket 3 in, push the device to working position through a plurality of universal wheels, start first servo motor 8, first servo motor 8 drives a plurality of first screw rods 7 through a plurality of initiative synchronizing wheel 9 and a plurality of driven synchronizing wheel 10 and rotates, a plurality of first screw rods 7 rotate and drive a plurality of diaphragm 6 and reciprocate, drive support 2 through a plurality of diaphragm 6 and reciprocate and can adjust the height of annotating head 14, will control the horizontal and vertical removal of annotating head 14 through vertical electronic slide rail 11 and horizontal electronic slide rail 12, thereby move annotating head 14 to the initial repair position of crack, scan the structure and the direction of crack through a plurality of laser scanning cameras 22, start second servo motor 16, second screw rod 17 rotates and drives sliding plate 18, L template 19, connecting rod 20 and clamp plate 21 and reciprocate, squeeze the microorganism thick liquid in the storage bucket 3 along guide pipe 15 to annotate head 14, will be through the electronic slip casting head 14 with the electronic slip casting head 23 of slip casting control crack, will be carried out the electronic slip casting head 23 and vertical direction is carried out to the electronic slip casting head according to the electronic slip casting head of crack of a plurality of electronic slip casting head 12, thereby the horizontal direction is carried out, can be repaired according to the electronic slip casting head of crack is driven by the electronic slip casting head of a plurality of direction of slip casting head 23, can be accomplished.
Compared with the related art, the repairing device for repairing the concrete cracks by the microorganisms has the following beneficial effects:
the utility model provides a repairing device for repairing concrete cracks by microorganisms, which can adjust the height of a repairing mechanism through a lifting mechanism, so that the device can repair the cracks at the higher position of a wall more conveniently, repair the cracks on the wall through the repairing mechanism, squeeze microbial repairing paste in a charging bucket 3 to the cracks on the wall through a squeezing guide mechanism, scan the structure and the direction of the cracks through a plurality of laser scanning cameras 22, and control a material injecting head 14 to move transversely or longitudinally through a plurality of longitudinal electric sliding rails 11 and a plurality of transverse electric sliding rails 12 according to the structure and the direction data of the cracks scanned by the plurality of laser scanning cameras 22, so that the material injecting head 14 moves along the direction of the cracks, the microbial repairing paste is injected into the cracks, the device can be operated and controlled through the controller 23, the device can move more conveniently through a plurality of universal wheels, and a plurality of transverse plates 6 can be limited on a plurality of first screws 7 through a plurality of limiting blocks.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A repair device for repairing a concrete crack by microorganisms, comprising:
a bottom plate;
the support is arranged at the top of the bottom plate;
the charging basket is arranged on the support;
the limiting plate is fixedly arranged on the support;
the limiting rods are fixedly arranged at the bottoms of the limiting plates and fixedly connected with the support;
the lifting mechanism is arranged at the top of the bottom plate;
the repairing mechanism is arranged on one side of the support;
the extrusion guide mechanism is arranged on the support.
2. The repairing device for repairing concrete cracks by microorganisms according to claim 1, wherein the lifting mechanism comprises a plurality of transverse plates, a plurality of first screw rods, a first servo motor, a plurality of driving synchronous wheels and a plurality of driven synchronous wheels, the transverse plates are fixedly installed on the support, the first screw rods are rotatably installed at the top of the bottom plate, the first screw rods are respectively in threaded connection with the transverse plates, the first servo motor is fixedly installed at the top of the bottom plate, the driving synchronous wheels are fixedly sleeved on the output shafts of the first servo motor, the driven synchronous wheels are fixedly sleeved on the first screw rods, and the driving synchronous wheels and the driven synchronous wheels are sleeved with synchronous belts.
3. The repairing device for repairing concrete cracks by microorganisms according to claim 2, wherein the repairing mechanism comprises a plurality of longitudinal electric sliding rails, a plurality of transverse electric sliding rails, a mounting frame and a material injection head, the longitudinal electric sliding rails are fixedly mounted on one side of the support, the transverse electric sliding rails are fixedly mounted on the output blocks of the longitudinal electric sliding rails, the mounting frame is fixedly mounted on the output blocks of the transverse electric sliding rails, and the material injection head is arranged on the mounting frame.
4. The repairing device for repairing concrete cracks by microorganisms according to claim 3, wherein the extruding and guiding mechanism comprises a guiding pipe, a second servo motor, a second screw rod, a sliding plate, an L-shaped plate, a connecting rod and a pressing plate, wherein the guiding pipe is arranged at the bottom of the charging basket, the guiding pipe is communicated with the material injection head, the second servo motor is fixedly arranged at the top of the limiting plate, the second screw rod is rotatably arranged on the limiting plate, the second screw rod is rotatably connected with the supporting seat, the second screw rod is fixedly connected with an output shaft of the second servo motor, the sliding plate is sleeved on the second screw rod in a threaded manner, the sliding plate is in sliding connection with a plurality of limiting rods, the L-shaped plate is fixedly arranged on one side of the sliding plate, the connecting rod is fixedly arranged on the L-shaped plate, the pressing plate is fixedly arranged at the bottom end of the connecting rod, and the pressing plate is in sliding connection with the inner wall of the charging basket.
5. The repairing device for repairing concrete cracks by microorganisms according to claim 4, wherein one side of the mounting frame is provided with a plurality of laser scanning cameras.
6. The repairing device for repairing concrete cracks by microorganisms according to claim 5, wherein a controller is arranged on the charging basket and is electrically connected with the first servo motor, the plurality of longitudinal electric sliding rails, the transverse electric sliding rails, the second servo motor and the plurality of laser scanning cameras.
7. The repairing device for repairing concrete cracks by microorganisms according to claim 2, wherein a plurality of universal wheels are arranged at the bottom of the bottom plate, and limiting blocks are fixedly arranged at the top ends of a plurality of first screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322120716.2U CN220725103U (en) | 2023-08-08 | 2023-08-08 | Repairing device for repairing concrete cracks by microorganisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322120716.2U CN220725103U (en) | 2023-08-08 | 2023-08-08 | Repairing device for repairing concrete cracks by microorganisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220725103U true CN220725103U (en) | 2024-04-05 |
Family
ID=90486148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322120716.2U Active CN220725103U (en) | 2023-08-08 | 2023-08-08 | Repairing device for repairing concrete cracks by microorganisms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220725103U (en) |
-
2023
- 2023-08-08 CN CN202322120716.2U patent/CN220725103U/en active Active
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