CN116290813A - Sectional type mounting technology based on daylighting roof for building - Google Patents
Sectional type mounting technology based on daylighting roof for building Download PDFInfo
- Publication number
- CN116290813A CN116290813A CN202310352927.0A CN202310352927A CN116290813A CN 116290813 A CN116290813 A CN 116290813A CN 202310352927 A CN202310352927 A CN 202310352927A CN 116290813 A CN116290813 A CN 116290813A
- Authority
- CN
- China
- Prior art keywords
- control module
- central control
- preset
- delta
- hoisting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005516 engineering process Methods 0.000 title description 2
- 239000011521 glass Substances 0.000 claims abstract description 123
- 239000003292 glue Substances 0.000 claims abstract description 90
- 239000007924 injection Substances 0.000 claims abstract description 90
- 238000002347 injection Methods 0.000 claims abstract description 90
- 238000011900 installation process Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000000007 visual effect Effects 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 21
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 239000012899 standard injection Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention relates to the technical field of daylighting roof installation, in particular to a sectional installation process based on a daylighting roof for a building, which comprises the following steps: step S1, hoisting a supporting steel structure, and installing soft connectors and a framework when the hoisting of the supporting steel structure is completed; step S2, the central control module controls the hoisting equipment to hoist the glass, and adjusts the rotating speed of the hoisting motor to a corresponding first corresponding rotating speed according to the contact area between the glass to be installed and the fixed hole, which is detected by the visual detector; step S3, the central control module secondarily adjusts the rotating speed of the hoisting motor to a second corresponding rotating speed according to the swing amplitude of the glass detected by the image sensor arranged on the side wall of the wall body; s4, the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height between the fixed hole and the horizontal plane where the top end of the wall body is located; the invention realizes the improvement of the installation efficiency and the installation accuracy.
Description
Technical Field
The invention relates to the technical field of daylighting roof installation, in particular to a sectional type installation process based on a daylighting roof for a building.
Background
The daylighting roof can greatly improve the daylighting property in the building structure, but because of the special structure and position, the construction is troublesome, and the daylighting roof is generally installed by firstly assembling and welding on the ground and then integrally hoisting or directly assembling and welding layer by layer on the embedded base. But because the restriction in some job site places, construction site large tracts of land construction is waterproof, and the place is narrow and small, and construction platform is high, can't realize integral hoisting or layer by layer and assemble the welding, the daylighting top among the prior art installs inefficiency and because the engineering time is long leads to relevant part to take place deformation easily and makes the installation accuracy lower.
Chinese patent publication No.: CN109881846a discloses a method for installing daylighting roof, which relates to the field of manufacturing method of roof structure of building, and its technical scheme is that the method comprises the following steps: step 1, erecting a track along the long side direction of a parapet; step 2, machining movable plates on the roof, wherein the movable plates slide on the rails; step 3, sliding the first movable plate to a target position along the track, and locking the position; step 4, processing the next movable plate on the roof, and sliding the movable plate to a target position for fixing; step 5, sequentially mounting glass on the steel skeleton of the movable plate, and gluing and closing in; it can be seen that the installation method of the daylighting roof has the following problems: the daylighting roof mounting efficiency is low and the mounting accuracy is not high in the prior art.
Disclosure of Invention
Therefore, the invention provides a sectional type installation process based on a daylighting roof for a building, which is used for solving the problems of low installation efficiency and low installation accuracy of the daylighting roof in the prior art.
In order to achieve the above object, the present invention provides a sectional installation process based on a daylighting roof for a building, comprising: step S1, hoisting a supporting steel structure, and installing soft connectors and a framework when the hoisting of the supporting steel structure is completed; step S2, when the installation of the soft connecting piece and the framework is completed, the central control module controls the hoisting equipment to hoist the glass, and the rotating speed of the hoisting motor is adjusted to a corresponding first corresponding rotating speed according to the contact area between the glass to be installed and the fixed hole, which is detected by the visual detector; step S3, when the central control module completes primary adjustment of the rotating speed of the hoisting motor, the central control module secondarily adjusts the rotating speed of the hoisting motor to a second corresponding rotating speed according to the swing amplitude of the glass detected by the image sensor arranged on the side wall of the wall body; and S4, when the central control module judges that the deformation degree of the glass frame exceeds the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is located.
Further, in step S2, the central control module determines whether the degree of coincidence between the glass and the glass frame is within the allowable range according to the contact area E between the glass to be mounted and the fixing hole detected by the visual detector, the central control module is provided with a preset first contact area E1 and a preset second contact area E2, wherein E1 is smaller than E2,
if E is less than or equal to E1, the central control module judges that the fit degree of the glass to be installed and the glass frame is lower than the allowable range, primarily judges that the deformation degree of the glass frame exceeds the allowable range, and secondarily judges whether the deformation degree of the glass frame is in the allowable range according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned;
if E1 is more than E and less than or equal to E2, the central control module judges that the degree of coincidence of the glass to be installed and the glass frame is within an allowable range and controls the hoisting motor to operate according to preset parameters;
if E > E2, the central control module determines that the degree of coincidence between the glass to be mounted and the glass frame is lower than the allowable range, determines that the irradiation intensity of sunlight to the glass exceeds the allowable range, and adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to the difference delta E between the contact area between the glass to be mounted and the fixed hole and the preset second contact area, and sets delta e=e-E2.
Further, when the central control module judges that the irradiation intensity of sunlight to the glass exceeds the allowable range, the central control module adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to the difference delta E between the contact area between the glass to be installed and the fixed hole and a preset second contact area, wherein the central control module is provided with a preset first rotation speed adjusting coefficient alpha 1, a preset second rotation speed adjusting coefficient alpha 2, a preset first contact area difference delta E1, a preset second contact area difference delta E2 and a preset hoisting motor rotation speed V0, the delta E1 is less than delta E2,
if delta E is less than or equal to delta E1, the central control module adjusts the rotating speed of the hoisting motor to V0;
if delta E1 is less than delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset first rotation speed regulating coefficient alpha 1;
if delta E > -delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset second rotation speed regulating coefficient alpha 2;
when the rotation speed of the hoisting motor is regulated by using the alpha i, the central control module sets i=1 and 2, the rotation speed of the hoisting motor after regulation is recorded as V ', and sets V' =V0× (1+alpha i)/2.
Further, when the deformation degree of the glass frame is primarily judged to be beyond the allowable range, the central control module carries out secondary judgment on whether the deformation degree of the glass frame is within the allowable range according to the vertical height H of the fixing hole and the horizontal plane where the top end of the wall body is positioned, the central control module is provided with a preset first height H1 and a preset second height H2, wherein H1 is smaller than H2,
if H is less than or equal to H1, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, judges that the supporting steel structure has quality risk and sends a quality inspection notice for the steel structure;
if H1 is more than H and less than or equal to H2, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, calculates a difference value delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned and a preset first height, adjusts the standard glue injection amount to a corresponding value according to the delta H, and sets delta H=H-H1;
if H is more than H2, the central control module secondarily judges that the deformation degree of the glass frame is in an allowable range.
Further, the calculation formula of the vertical height H of the horizontal plane where the fixing hole and the top end of the wall body are located is as follows:
H＝H a -H b
wherein H is a To fix the vertical height between the hole and the ground, H b Is the vertical height between the top end of the wall body and the ground.
Further, when the central control module completes the determination of whether the height of the glass frame vertex groove from the horizontal plane is within the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to the difference delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned and the preset first height, the central control module is provided with a preset first height difference delta H1, a preset second height difference delta H2, a preset first glue injection amount adjusting coefficient beta 1, a preset second glue injection amount adjusting coefficient beta 2 and a preset standard glue injection amount T0, wherein delta H1 < [ delta ] H2,1 < beta 2,
if delta H is less than or equal to delta H1, the central control module adjusts the standard glue injection amount to T0;
if delta H1 is less than delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset first glue injection quantity regulating coefficient beta 1;
if delta H > -delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset second glue injection quantity regulating coefficient beta 2;
when the standard glue injection amount is adjusted by using beta i, the central control module sets i=1 and 2, the adjusted standard glue injection amount is marked as T ', and T' =T0× (1+beta i)/2 is set.
Further, the central control module judges whether the adjustment amplitude meets the requirement according to the comparison result of the adjusted standard glue injection amount and the preset maximum glue injection amount, the central control module is provided with the preset maximum glue injection amount T,
if T' < T, the central control module judges that the adjustment range of the glue injection quantity is within the allowable range and uses the adjusted standard glue injection quantity to perform glue injection operation;
and if T'. Gtoreq.T, the central control module judges that the adjusting amplitude of the glue injection quantity exceeds the allowable range and uses the preset standard glue injection quantity to perform glue injection operation.
Further, the central control module judges whether the hoisting stability is in an allowable range according to the swing angle Q of the hoisting glass detected by the image sensor, the central control module is provided with a preset first swing angle Q1 and a preset second swing angle Q2, wherein Q1 is smaller than Q2,
if Q is less than or equal to Q1, the central control module judges that the hoisting stability is within an allowable range;
if Q1 is less than Q and less than or equal to Q2, the central control module judges that the hoisting stability is lower than an allowable range, calculates a difference DeltaQ between the swing angle Q of the hoisting glass and a preset first swing angle Q1, reduces the rotating speed of the hoisting motor to a second corresponding rotating speed according to DeltaQ, and sets DeltaQ=Q-Q1;
if Q is more than Q2, the central control module judges that the hoisting stability is lower than the allowable range, judges that the hoisting equipment has faults and sends out fault inspection notification aiming at the hoisting equipment.
Further, after judging that the hoisting stability is beyond the allowable range, the central control module secondarily reduces the rotation speed of the hoisting motor to the corresponding rotation speed according to the difference delta Q between the swing angle Q of the hoisting glass and the preset first swing angle Q1, wherein the central control module is provided with a preset third rotation speed regulating coefficient alpha 3, a preset fourth rotation speed regulating coefficient alpha 4, a preset first angle difference delta Q1 and a preset second angle difference delta Q2, wherein 0 < alpha 3 < alpha 4 < 1, delta Q1 < [ delta ] Q2,
if the delta Q is less than or equal to delta Q1, the central control module secondarily adjusts the rotating speed of the hoisting motor to V0;
if delta Q1 is less than delta Q2, the central control module judges that the rotation speed of the hoisting motor is secondarily regulated by using a preset fourth rotation speed regulating coefficient alpha 4;
if delta Q > -delta Q2, the central control module judges that the rotation speed of the hoisting motor is secondarily regulated by using a preset third rotation speed regulating coefficient alpha 3;
when the αk is used for carrying out secondary adjustment on the preset hoisting motor rotating speed V0, the central control module sets k=3 and 4, the hoisting motor rotating speed after secondary adjustment is recorded as V ', and V ' =V ' × (1+αk)/2 is set.
Further, the central control module judges whether the lifting equipment has faults according to the comparison result of the difference value of the swing angle of the lifting glass and the preset first swing angle and the preset maximum swing angle difference value, the central control module is provided with the preset maximum swing angle difference value delta Qmax,
if delta Q < [ delta ] Qmax, the central control module judges that the lifting equipment has no fault;
and if delta Q > -delta Qmax, the central control module judges that the equipment fault exists in the hoisting equipment and sends out a fault maintenance notification aiming at the hoisting equipment.
Compared with the prior art, the method has the beneficial effects that the rotation speed of the hoisting motor is regulated by the central control module according to the contact area between the glass to be installed and the fixed hole detected by the visual detector through the steps S1-S4, so that the influence of strong sunlight illumination on the glass to be installed is reduced, the rotation speed of the hoisting motor is secondarily regulated by the central control module according to the swing amplitude of the object detected by the image sensor, and the influence of overlarge speed regulation on the stability of the hoisting process is reduced; the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height of the horizontal plane where the fixing hole and the top end of the wall body are located, so that the problem of rainwater leakage caused by glass deformation is reduced, and the installation efficiency and the installation accuracy are improved.
Furthermore, according to the mounting process, the preset first contact area and the preset second contact area are set, and the degree of the fit between the glass to be mounted and the glass frame is judged through the contact area between the glass to be mounted and the fixing hole, so that the rate of the non-fit between the glass and the glass frame is reduced, and the mounting efficiency and the mounting accuracy are further improved.
Furthermore, the mounting process adjusts the hoisting motor by setting the preset first contact area difference value, the preset second contact area difference value, the preset first rotating speed adjustment coefficient, the preset second rotating speed adjustment coefficient and the preset hoisting motor rotating speed, so that the working efficiency of the hoisting motor is improved, and the mounting efficiency and the mounting accuracy are further improved.
Furthermore, the mounting process of the invention further improves the mounting efficiency and the mounting accuracy by setting the preset first height and the preset second height, and judging whether the deformation degree of the glass frame is within the allowable range or not according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned by the central control module.
Furthermore, according to the mounting process, the risk of rainwater leakage caused by deformation of the glass frame is reduced by setting the preset first height difference value, the preset second height difference value, the preset first glue injection amount adjustment coefficient, the preset second glue injection amount adjustment coefficient and the preset standard glue injection amount, and the mounting efficiency and the mounting accuracy are further improved.
Furthermore, the installation process of the invention is characterized in that the central control module judges the regulated standard glue injection amount by setting the preset maximum glue injection amount, and rejects the glue injection amount which does not meet the construction requirement, thereby further improving the installation efficiency and the installation accuracy.
Furthermore, according to the mounting process, the preset first swing angle and the preset second swing angle are set, and the central control module judges whether the lifting stability is in the allowable range or not according to the swing angle of the lifting glass detected by the image sensor, so that the influence of object swing on the mounting efficiency is reduced, and the mounting efficiency and the mounting accuracy are further improved.
Furthermore, according to the mounting process, the preset first angle difference value, the preset second angle difference value, the preset third rotating speed adjusting coefficient and the preset fourth rotating speed adjusting coefficient are set, and the central control module adjusts the rotating speed of the hoisting motor, so that the hoisting stability is within an allowable range, and the mounting efficiency and the mounting accuracy are further improved.
Drawings
FIG. 1 is an overall flow chart of a sectional installation process based on a daylighting roof for a building according to an embodiment of the invention;
FIG. 2 is a flowchart showing a step S2 of a sectional installation process based on a daylighting roof for a building according to an embodiment of the present invention;
FIG. 3 is a flowchart showing a step S4 of a sectional installation process based on a daylighting roof for a building according to an embodiment of the present invention;
fig. 4 is a specific flowchart of step S3 of the sectional installation process based on the daylighting roof for building according to the embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, which are an overall flowchart of a sectional installation process based on a daylighting roof for a building, a specific flowchart of step S2, a specific flowchart of step S4, and a specific flowchart of step S3 according to an embodiment of the present invention, respectively; the embodiment of the invention discloses a sectional installation process based on a daylighting roof for a building, which comprises the following steps:
step S1, hoisting a supporting steel structure, and installing soft connectors and a framework when the hoisting of the supporting steel structure is completed;
step S2, when the installation of the soft connecting piece and the framework is completed, the central control module controls the hoisting equipment to hoist the glass, and the rotating speed of the hoisting motor is regulated to a corresponding first corresponding rotating speed according to the contact area between the glass to be installed and the fixed hole detected by the visual detector;
step S3, when the central control module completes primary adjustment of the rotating speed of the hoisting motor, the central control module secondarily adjusts the rotating speed of the hoisting motor to a second corresponding rotating speed according to the swing amplitude of the glass detected by the image sensor arranged on the side wall of the wall body;
and S4, when the central control module judges that the deformation degree of the glass frame exceeds the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is located.
Specifically, the step S2 includes:
step S21, controlling hoisting equipment to hoist glass by a central control module;
step S22, judging whether the degree of coincidence of the glass and the glass frame is in an allowable range or not according to the contact area between the glass to be installed and the fixing hole detected by the visual detector;
and S23, adjusting the rotating speed of the hoisting motor to a corresponding first corresponding rotating speed.
Specifically, the step S3 includes:
step S31, judging whether hoisting stability is in an allowable range or not by the central control module according to the swing angle of the hoisting glass detected by the image sensor;
and S32, secondarily adjusting the rotating speed of the hoisting motor to a second corresponding rotating speed.
Specifically, step S4 includes:
step S41, the central control module judges whether the deformation degree of the glass frame is in an allowable range or not secondarily according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned;
and S42, adjusting the standard glue injection amount.
According to the invention, through setting the steps S1-S4, the central control module adjusts the rotating speed of the hoisting motor according to the contact area between the glass to be installed and the fixed hole detected by the visual detector, the influence of strong sunlight illumination on the glass to be installed is reduced, the central control module adjusts the rotating speed of the hoisting motor for the second time according to the swing amplitude of the object detected by the image sensor, the influence of excessive speed adjustment on the stability of the hoisting process is reduced, and the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height of the fixed hole and the horizontal plane where the top end of the wall body is positioned, the problem of rainwater leakage caused by glass deformation is reduced, and the installation efficiency and the installation accuracy are improved.
Further, the method comprises the steps of. In step S2, the central control module judges whether the degree of coincidence of the glass and the glass frame is within an allowable range according to the contact area E between the glass to be installed and the fixed hole detected by the visual detector, the central control module is provided with a preset first contact area E1 and a preset second contact area E2, wherein E1 is smaller than E2,
if E is less than or equal to E1, the central control module judges that the fit degree of the glass to be installed and the glass frame is lower than the allowable range, primarily judges that the deformation degree of the glass frame exceeds the allowable range, and secondarily judges whether the deformation degree of the glass frame is in the allowable range according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned;
if E1 is more than E and less than or equal to E2, the central control module judges that the degree of coincidence of the glass to be installed and the glass frame is within an allowable range and controls the hoisting motor to operate according to preset parameters;
if E > E2, the central control module determines that the degree of coincidence between the glass to be mounted and the glass frame is lower than the allowable range, determines that the irradiation intensity of sunlight to the glass exceeds the allowable range, and adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to the difference delta E between the contact area between the glass to be mounted and the fixed hole and the preset second contact area, and sets delta e=e-E2.
According to the mounting process, the preset first contact area and the preset second contact area are set, and the degree of the fit between the glass and the glass frame is judged through the contact area between the glass to be mounted and the fixing hole, so that the rate of the non-fit between the glass and the glass frame is reduced, and the mounting efficiency and the mounting accuracy are further improved.
Further, the sectional installation process based on a daylighting roof for a building according to claim 2, wherein the central control module adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to a difference delta E between a contact area between the glass to be installed and the fixed hole and a preset second contact area when it is determined that the irradiation intensity of sunlight to the glass exceeds an allowable range, the central control module is provided with a preset first rotation speed adjustment coefficient alpha 1, a preset second rotation speed adjustment coefficient alpha 2, a preset first contact area difference delta E1, a preset second contact area difference delta E2 and a preset hoisting motor rotation speed V0, wherein 1 < alpha 2, delta E1 < [ delta ] E2,
if delta E is less than or equal to delta E1, the central control module adjusts the rotating speed of the hoisting motor to V0;
if delta E1 is less than delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset first rotation speed regulating coefficient alpha 1;
if delta E > -delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset second rotation speed regulating coefficient alpha 2;
when the rotation speed of the hoisting motor is regulated by using the alpha i, the central control module sets i=1 and 2, the rotation speed of the hoisting motor after regulation is recorded as V ', and sets V' =V0× (1+alpha i)/2.
According to the mounting process, the lifting motor is regulated by setting the preset first contact area difference value, the preset second contact area difference value, the preset first rotation speed regulating coefficient, the preset second rotation speed regulating coefficient and the preset lifting motor rotation speed, so that the working efficiency of the lifting motor is improved, and the mounting efficiency and the mounting accuracy are further improved.
Further, when the deformation degree of the glass frame is primarily judged to be beyond the allowable range, the central control module carries out secondary judgment on whether the deformation degree of the glass frame is within the allowable range according to the vertical height H of the fixing hole and the horizontal plane where the top end of the wall body is positioned, the central control module is provided with a preset first height H1 and a preset second height H2, wherein H1 is smaller than H2,
if H is less than or equal to H1, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, judges that the supporting steel structure has quality risk and sends a quality inspection notice for the steel structure;
if H1 is more than H and less than or equal to H2, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, calculates a difference value delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned and a preset first height, adjusts the standard glue injection amount to a corresponding value according to the delta H, and sets delta H=H-H1;
if H is more than H2, the central control module secondarily judges that the deformation degree of the glass frame is in an allowable range.
According to the mounting process, the preset first height and the preset second height are set, and the central control module judges whether the deformation degree of the glass frame is in the allowable range or not according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is located, so that the mounting efficiency and the mounting accuracy are further improved.
Further, the calculation formula of the vertical height H of the horizontal plane where the fixing hole and the top end of the wall body are located is as follows:
H＝H a -H b
wherein H is a To fix the vertical height between the hole and the ground, H b Is the vertical height between the top end of the wall body and the ground.
Further, when the central control module completes the determination of whether the height of the glass frame vertex groove from the horizontal plane is within the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to the difference delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned and the preset first height, the central control module is provided with a preset first height difference delta H1, a preset second height difference delta H2, a preset first glue injection amount adjusting coefficient beta 1, a preset second glue injection amount adjusting coefficient beta 2 and a preset standard glue injection amount T0, wherein delta H1 < [ delta ] H2,1 < beta 2,
if delta H is less than or equal to delta H1, the central control module adjusts the standard glue injection amount to T0;
if delta H1 is less than delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset first glue injection quantity regulating coefficient beta 1;
if delta H > -delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset second glue injection quantity regulating coefficient beta 2;
when the standard injection quantity T0 is regulated by using beta i, the central control module sets i=1 and 2, the regulated standard injection quantity is marked as T ', and T' =T0× (1+beta i)/2 is set.
According to the mounting process, the preset first height difference value, the preset second height difference value, the preset first glue injection quantity adjusting coefficient, the preset second glue injection quantity adjusting coefficient and the preset standard glue injection quantity are set, so that the risk of rainwater leakage caused by deformation of the glass frame is reduced, and the mounting efficiency and the mounting accuracy are further improved.
Further, the central control module judges whether the adjustment amplitude meets the requirement according to the comparison result of the adjusted standard glue injection amount and the preset maximum glue injection amount, the central control module is provided with the preset maximum glue injection amount T,
if T' < T, the central control module judges that the adjustment range of the glue injection quantity is within the allowable range and uses the adjusted standard glue injection quantity to perform glue injection operation;
and if T'. Gtoreq.T, the central control module judges that the adjusting amplitude of the glue injection quantity exceeds the allowable range and uses the preset standard glue injection quantity to perform glue injection operation.
According to the mounting process, the preset maximum glue injection amount is set, the central control module judges the adjusted standard glue injection amount, and the glue injection amount which does not meet the construction requirement is removed, so that the mounting efficiency and the mounting accuracy are further improved.
Further, the central control module judges whether the hoisting stability is in an allowable range according to the swing angle Q of the hoisting glass detected by the image sensor, the central control module is provided with a preset first swing angle Q1 and a preset second swing angle Q2, wherein Q1 is smaller than Q2,
if Q is less than or equal to Q1, the central control module judges that the hoisting stability is within an allowable range;
if Q1 is less than Q and less than or equal to Q2, the central control module judges that the hoisting stability is lower than an allowable range, calculates a difference DeltaQ between the swing angle Q of the hoisting glass and a preset first swing angle Q1, reduces the rotating speed of the hoisting motor to a second corresponding rotating speed according to DeltaQ, and sets DeltaQ=Q-Q1;
if Q is more than Q2, the central control module judges that the hoisting stability is lower than the allowable range, judges that the hoisting equipment has faults and sends out fault inspection notification aiming at the hoisting equipment.
According to the mounting process, the preset first swing angle and the preset second swing angle are set, and the central control module judges whether the lifting stability is in the allowable range according to the swing angle of the lifting glass detected by the image sensor, so that the influence of object swing on the mounting efficiency is reduced, and the mounting efficiency and the mounting accuracy are further improved.
Further, after judging that the hoisting stability is beyond the allowable range, the central control module secondarily reduces the rotation speed of the hoisting motor to the corresponding rotation speed according to the difference delta Q between the swing angle Q of the hoisting glass and the preset first swing angle Q1, wherein the central control module is provided with a preset third rotation speed regulating coefficient alpha 3, a preset fourth rotation speed regulating coefficient alpha 4, a preset first angle difference delta Q1 and a preset second angle difference delta Q2, wherein 0 < alpha 3 < alpha 4 < 1, delta Q1 < [ delta ] Q2,
if the delta Q is less than or equal to delta Q1, the central control module secondarily adjusts the rotating speed of the hoisting motor to V0;
if DeltaQ 1 is less than DeltaQ 2, the central control module judges that the rotation speed V' of the hoisting motor is secondarily regulated by using a preset fourth rotation speed regulating coefficient alpha 4;
if delta Q > -delta Q2, the central control module judges that the rotation speed V' of the hoisting motor is secondarily regulated by using a preset third rotation speed regulating coefficient alpha 3;
when the αk is used for carrying out secondary adjustment on the preset hoisting motor rotating speed V0, the central control module sets k=3 and 4, the hoisting motor rotating speed after secondary adjustment is recorded as V ', and V ' =V ' × (1+αk)/2 is set.
According to the mounting process, the preset first angle difference value, the preset second angle difference value, the preset third rotating speed adjusting coefficient and the preset fourth rotating speed adjusting coefficient are set, and the central control module adjusts the rotating speed of the hoisting motor, so that the hoisting stability is within an allowable range, and the mounting efficiency and the mounting accuracy are further improved.
Further, the central control module judges whether the lifting equipment has faults according to the comparison result of the difference value of the swing angle of the lifting glass and the preset first swing angle and the preset maximum swing angle difference value, the central control module is provided with the preset maximum swing angle difference value delta Qmax,
if delta Q < [ delta ] Qmax, the central control module judges that the lifting equipment has no fault;
and if delta Q > -delta Qmax, the central control module judges that the equipment fault exists in the hoisting equipment and sends out a fault maintenance notification aiming at the hoisting equipment.
Example 1
In the sectional installation process based on the daylighting roof for the building in embodiment 1, after the central control module judges the matching degree of the glass and the glass frame, three adjustment modes are provided for the rotation speed of the hoisting motor, and the glass is installed and fixedThe difference between the contact area between the holes and the preset second contact area is denoted as deltae, the preset first rotation speed adjustment coefficient is denoted as alpha 1, the preset second rotation speed adjustment coefficient is denoted as alpha 2, the preset first contact area difference is denoted as deltae 1, the preset second contact area difference is denoted as deltae 2 and the preset hoisting motor rotation speed V0, wherein deltae1=0.1 cm 2 ，△E2＝0.5cm 2 ，α1＝1.2，α2＝1.5，V0＝1450r/min,
The ΔE=0.2 cm was obtained in example 1 2 The central control module judges that delta E1 < deltaE 2 is less than or equal to delta E2, and uses alpha 1 to regulate the rotation speed of the hoisting motor, wherein the regulated rotation speed V' =1450 r/min×1.2=1740r/min of the hoisting motor.
The central control module in this embodiment 1 adjusts the condition that the preset motor rotation speed does not meet the construction requirement in the installation process of the daylighting roof by setting the preset first contact area difference value, the preset second contact area difference value, the preset first rotation speed adjustment coefficient, the preset second rotation speed adjustment coefficient and the preset hoisting motor rotation speed, so that the installation efficiency and the installation accuracy are further improved.
Example 2
In this embodiment 2, after determining whether the height of the glass frame vertex groove from the horizontal plane is within the allowable range, the central control module has three adjustment modes for the glue injection amount, wherein the preset first height difference is denoted as Δh1, the preset second height difference is denoted as Δh2, the preset first glue injection adjustment coefficient is denoted as β1, the preset second glue injection adjustment coefficient is denoted as β2, and the preset glue injection amount is denoted as T0, where Δh1=0.2 cm, Δh2=0.4 cm, β1=1.2, β2=1.5, and t0=15 ml/cm 2 ，
In the embodiment 2, Δh=0.3 cm is obtained, the central control module judges that Δh1 < [ Δh2 ] is less than or equal to Δh2, and uses β1 to adjust the glue injection amount, and the adjusted standard glue injection amount is T' =15 ml/cm 2 ×1.2＝18ml/cm 2 。
The central control module in this embodiment 2 adjusts the condition that the glue injection amount in the daylighting roof installation process does not meet the construction requirement by setting the preset first height difference, the preset second height difference, the preset first glue injection adjustment coefficient, the preset second glue injection adjustment coefficient and the preset glue injection amount, so that the problem of rainwater leakage caused by glass frame deformation is reduced, and the installation efficiency and the installation accuracy are further improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The sectional type installation process based on the daylighting roof for the building is characterized by comprising the following steps of:
step S1, hoisting a supporting steel structure, and installing soft connectors and a framework when the hoisting of the supporting steel structure is completed;
step S2, when the installation of the soft connecting piece and the framework is completed, the central control module controls the hoisting equipment to hoist the glass, and the rotating speed of the hoisting motor is adjusted to a corresponding first corresponding rotating speed according to the contact area between the glass to be installed and the fixed hole, which is detected by the visual detector;
step S3, when the central control module completes primary adjustment of the rotating speed of the hoisting motor, the central control module secondarily adjusts the rotating speed of the hoisting motor to a second corresponding rotating speed according to the swing amplitude of the glass detected by the image sensor arranged on the side wall of the wall body;
and S4, when the central control module judges that the deformation degree of the glass frame exceeds the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is located.
2. The sectional installation process based on a daylighting roof for construction according to claim 1, wherein the central control module determines whether the degree of coincidence of the glass and the glass frame is within an allowable range according to the contact area E between the glass to be installed and the fixing hole detected by the visual detector in step S2, a preset first contact area E1 and a preset second contact area E2 are provided in the central control module, wherein E1 < E2,
if E is less than or equal to E1, the central control module judges that the fit degree of the glass to be installed and the glass frame is lower than the allowable range, primarily judges that the deformation degree of the glass frame exceeds the allowable range, and secondarily judges whether the deformation degree of the glass frame is in the allowable range according to the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned;
if E1 is more than E and less than or equal to E2, the central control module judges that the degree of coincidence of the glass to be installed and the glass frame is within an allowable range and controls the hoisting motor to operate according to preset parameters;
if E > E2, the central control module determines that the degree of coincidence between the glass to be mounted and the glass frame is lower than the allowable range, determines that the irradiation intensity of sunlight to the glass exceeds the allowable range, and adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to the difference delta E between the contact area between the glass to be mounted and the fixed hole and the preset second contact area, and sets delta e=e-E2.
3. The sectional installation process based on a daylighting roof for a building according to claim 2, wherein the central control module adjusts the rotation speed of the hoisting motor to a first corresponding rotation speed according to a difference delta E between a contact area between the glass to be installed and the fixed hole and a preset second contact area when the irradiation intensity of sunlight to the glass is determined to be beyond an allowable range, the central control module is provided with a preset first rotation speed adjustment coefficient alpha 1, a preset second rotation speed adjustment coefficient alpha 2, a preset first contact area difference delta E1, a preset second contact area difference delta E2 and a preset hoisting motor rotation speed V0, wherein 1 < alpha 2, delta E1 < [ delta ] E2,
if delta E is less than or equal to delta E1, the central control module adjusts the rotating speed of the hoisting motor to V0;
if delta E1 is less than delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset first rotation speed regulating coefficient alpha 1;
if delta E > -delta E2, the central control module judges that the rotation speed of the hoisting motor is regulated by using a preset second rotation speed regulating coefficient alpha 2;
when the rotation speed of the hoisting motor is regulated by using the alpha i, the central control module sets i=1 and 2, the rotation speed of the hoisting motor after regulation is recorded as V ', and sets V' =V0× (1+alpha i)/2.
4. The sectional installation process based on the daylighting roof for the building according to claim 3, wherein the central control module carries out secondary determination on the deformation degree of the glass frame according to whether the vertical height H of the fixing hole and the horizontal plane where the top end of the wall body is positioned is within the allowable range or not when the deformation degree of the glass frame is primarily determined to be beyond the allowable range, the central control module is provided with a preset first height H1 and a preset second height H2, wherein H1 is smaller than H2,
if H is less than or equal to H1, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, judges that the supporting steel structure has quality risk and sends a quality inspection notice for the steel structure;
if H1 is more than H and less than or equal to H2, the central control module secondarily judges that the deformation degree of the glass frame exceeds the allowable range, calculates a difference value delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall body is positioned and a preset first height, adjusts the standard glue injection amount to a corresponding value according to the delta H, and sets delta H=H-H1;
if H is more than H2, the central control module secondarily judges that the deformation degree of the glass frame is in an allowable range.
5. The sectional installation process based on the daylighting roof for the building according to claim 4, wherein the calculation formula of the vertical height H of the horizontal plane where the fixing hole and the top end of the wall body are located is as follows:
H＝H a -H b
wherein H is a To fix the vertical height between the hole and the ground, H b Is the vertical height between the top end of the wall body and the ground.
6. The sectional mounting process based on a daylighting roof for a building according to claim 5, wherein when the central control module determines whether the height from the top groove of the glass frame to the horizontal plane is within the allowable range, the central control module adjusts the standard glue injection amount to a corresponding value according to a difference delta H between the vertical height of the fixing hole and the horizontal plane where the top end of the wall is located and a preset first height, the central control module is provided with a preset first height difference delta H1, a preset second height difference delta H2, a preset first glue injection amount adjusting coefficient beta 1, a preset second glue injection amount adjusting coefficient beta 2 and a preset standard glue injection amount T0, wherein delta H1 < [ delta ] H2,1 < beta 2,
if delta H is less than or equal to delta H1, the central control module adjusts the standard glue injection amount to T0;
if delta H1 is less than delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset first glue injection quantity regulating coefficient beta 1;
if delta H > -delta H2, the central control module judges that the standard glue injection quantity T0 is regulated by using a preset second glue injection quantity regulating coefficient beta 2;
when the standard glue injection amount is adjusted by using beta i, the central control module sets i=1 and 2, the adjusted standard glue injection amount is marked as T ', and T' =T0× (1+beta i)/2 is set.
7. The sectional installation process based on a daylighting roof for a building according to claim 6, wherein the central control module determines whether the adjustment amplitude meets the requirement according to the comparison result of the adjusted standard glue injection amount and the preset maximum glue injection amount, the central control module is provided with the preset maximum glue injection amount T,
if T' < T, the central control module judges that the adjustment range of the glue injection quantity is within the allowable range and uses the adjusted standard glue injection quantity to perform glue injection operation;
and if T'. Gtoreq.T, the central control module judges that the adjusting amplitude of the glue injection quantity exceeds the allowable range and uses the preset standard glue injection quantity to perform glue injection operation.
8. The sectional installation process based on the daylighting roof for the building according to claim 7, wherein the central control module judges whether the hoisting stability is within an allowable range according to the swing angle Q of the hoisting glass detected by the image sensor, the central control module is provided with a preset first swing angle Q1 and a preset second swing angle Q2, wherein Q1 is smaller than Q2,
if Q is less than or equal to Q1, the central control module judges that the hoisting stability is within an allowable range;
if Q1 is less than Q and less than or equal to Q2, the central control module judges that the hoisting stability is lower than an allowable range, calculates a difference DeltaQ between a swing angle Q of the hoisting glass and a preset first swing angle Q1, reduces the rotating speed of the hoisting motor to a second corresponding rotating speed according to DeltaQ, and sets DeltaQ=Q-Q1;
if Q is more than Q2, the central control module judges that the hoisting stability is lower than the allowable range, judges that the hoisting equipment has faults and sends out fault inspection notification aiming at the hoisting equipment.
9. The sectional installation process based on daylighting roof for building according to claim 8, wherein the central control module is provided with a preset third rotation speed adjustment coefficient alpha 3, a preset fourth rotation speed adjustment coefficient alpha 4, a preset first angle difference delta Q1 and a preset second angle difference delta Q2, wherein 0 < alpha 3 < alpha 4 < 1, delta Q1 < [ delta ] Q2,
if the delta Q is less than or equal to delta Q1, the central control module secondarily adjusts the rotating speed of the hoisting motor to V0;
if delta Q1 is less than delta Q2, the central control module judges that the rotation speed of the hoisting motor is secondarily regulated by using a preset fourth rotation speed regulating coefficient alpha 4;
if delta Q > -delta Q2, the central control module judges that the rotation speed of the hoisting motor is secondarily regulated by using a preset third rotation speed regulating coefficient alpha 3;
when the αk is used for carrying out secondary adjustment on the preset hoisting motor rotating speed V0, the central control module sets k=3 and 4, the hoisting motor rotating speed after secondary adjustment is recorded as V ', and V ' =V ' × (1+αk)/2 is set.
10. The sectional installation process based on the daylighting roof for the building according to claim 9, wherein the central control module judges whether the lifting device has faults according to the comparison result of the difference value of the swing angle of the lifting glass and the preset first swing angle and the preset maximum swing angle difference value, the central control module is provided with the preset maximum swing angle difference value delta Qmax,
if delta Q < [ delta ] Qmax, the central control module judges that the lifting equipment has no fault;
and if delta Q > -delta Qmax, the central control module judges that the equipment fault exists in the hoisting equipment and sends out a fault maintenance notification aiming at the hoisting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310352927.0A CN116290813B (en) | 2023-04-04 | 2023-04-04 | Sectional type mounting technology based on daylighting roof for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310352927.0A CN116290813B (en) | 2023-04-04 | 2023-04-04 | Sectional type mounting technology based on daylighting roof for building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116290813A true CN116290813A (en) | 2023-06-23 |
| CN116290813B CN116290813B (en) | 2024-04-16 |
Family
ID=86788667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310352927.0A Active CN116290813B (en) | 2023-04-04 | 2023-04-04 | Sectional type mounting technology based on daylighting roof for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116290813B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030021938A1 (en) * | 2001-07-27 | 2003-01-30 | Kraft David A. | Forming new sheet flooring widths by controlling application of a bonding agent |
| CN106013817A (en) * | 2016-06-24 | 2016-10-12 | 中国十七冶集团有限公司 | Integral hoisting detection device for large-area steel structure and use method of integral hoisting detection device for large-area steel structure |
| CN109577656A (en) * | 2018-12-30 | 2019-04-05 | 山西五建集团有限公司 | Large span lighting roof glass curtain construction method of installation |
| CN208805457U (en) * | 2018-06-22 | 2019-04-30 | 廖鲁杰 | A kind of road friction coefficient detection device |
| CN109850784A (en) * | 2019-01-25 | 2019-06-07 | 上海建工五建集团有限公司 | A kind of steel structure net rack promotes positioning system and method |
| CN210735910U (en) * | 2019-08-24 | 2020-06-12 | 华城(天津)建筑科技有限公司 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction |
-
2023
- 2023-04-04 CN CN202310352927.0A patent/CN116290813B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030021938A1 (en) * | 2001-07-27 | 2003-01-30 | Kraft David A. | Forming new sheet flooring widths by controlling application of a bonding agent |
| CN106013817A (en) * | 2016-06-24 | 2016-10-12 | 中国十七冶集团有限公司 | Integral hoisting detection device for large-area steel structure and use method of integral hoisting detection device for large-area steel structure |
| CN208805457U (en) * | 2018-06-22 | 2019-04-30 | 廖鲁杰 | A kind of road friction coefficient detection device |
| CN109577656A (en) * | 2018-12-30 | 2019-04-05 | 山西五建集团有限公司 | Large span lighting roof glass curtain construction method of installation |
| CN109850784A (en) * | 2019-01-25 | 2019-06-07 | 上海建工五建集团有限公司 | A kind of steel structure net rack promotes positioning system and method |
| CN210735910U (en) * | 2019-08-24 | 2020-06-12 | 华城(天津)建筑科技有限公司 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116290813B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109113320B (en) | Construction operation method in elevator shaft | |
| CN116290813B (en) | Sectional type mounting technology based on daylighting roof for building | |
| CN105735657A (en) | Self-adaptive diagonal bracing verticality adjusting device applicable to vertical prefabricated component | |
| KR101954048B1 (en) | Prefabricated solar panel | |
| KR200382126Y1 (en) | The sunlight tracking apparatus for solar cell unit | |
| CN209166441U (en) | Laser positioning automatic paying-off device in a kind of tunnel | |
| CN207283681U (en) | Camera moves stent | |
| CN106499916A (en) | A kind of lower margin levelling gear and leveling method | |
| CN108979171A (en) | Prefabricated components Intelligent Installation automatic correction equipment | |
| CN214031359U (en) | Supporting structure for escalator or sidewalk | |
| CN114561925A (en) | Electric power foundation pit safety monitoring system based on thing networking | |
| CN109113321B (en) | Automatic leveling operation platform | |
| CN220445562U (en) | Frock bed-jig suitable for steel case roof beam arch rib preparation | |
| CN113802466A (en) | Telescopic bridge support for hydraulic engineering emergency | |
| CN219199064U (en) | Novel street lamp | |
| CN212608877U (en) | Automatic alarm device for elevator | |
| CN112279052B (en) | Supporting structure for escalator or sidewalk | |
| KR100663758B1 (en) | Horizontality regulating apparatus of container for steel house | |
| CN219033778U (en) | Oblique angle I-steel beam with adjustable angle | |
| CN218582738U (en) | Water level monitoring equipment for safe operation of storage tank | |
| CN214995398U (en) | Toughened glass stair structure with adjustable step height | |
| CN219081345U (en) | Masonry support structure on strip window | |
| KR102591986B1 (en) | Floodgate With Lifting Bracket With Center Of Gravity Adjustment Function | |
| CN220433664U (en) | Steel reinforcement cage lowering device | |
| CN220789438U (en) | Quick positioner is used in bridge hoist and mount |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |