CN116971580A - Platform for well dismantling - Google Patents
Platform for well dismantling Download PDFInfo
- Publication number
- CN116971580A CN116971580A CN202310889310.2A CN202310889310A CN116971580A CN 116971580 A CN116971580 A CN 116971580A CN 202310889310 A CN202310889310 A CN 202310889310A CN 116971580 A CN116971580 A CN 116971580A
- Authority
- CN
- China
- Prior art keywords
- platform
- sealing plate
- air bag
- operation platform
- well
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 230000001133 acceleration Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
-
- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
Abstract
The invention discloses a platform for well dismantling, which comprises a support frame, an operation platform, a sealing plate, a locking structure and an acceleration detector, wherein the support frame is arranged on the operation platform; the operation platform is connected to the support frame in a sliding manner along the vertical direction, the bottom of the operation platform is provided with a containing groove, an air bag is arranged in the containing groove, and certain pressure is arranged in the air bag; the sealing plate is connected with the opening of the accommodating groove in a sealing way and props against the air bag so as to enable the air bag part to be in a folded state; the locking structure is connected between the sealing plate and the inner wall of the accommodating groove to be locked and fixed; the acceleration detector is arranged on the operation platform and connected with the locking structure, and the locking structure is unlocked when the acceleration detector detects that the acceleration exceeds a set value; compared with the prior art, when the descending acceleration of the operation platform exceeds a set value, the sealing of the sealing plate to the accommodating groove is released, the air bags are offset, the air bags are used for firstly contacting with the bottom of the well to buffer, and the safety of workers and structures on the operation platform is improved.
Description
Technical Field
The invention relates to the technical field of well dismantling auxiliary tools, in particular to a platform for well dismantling.
Background
In the construction of a building structure, an elevator shaft area is one of areas with a high risk in the whole construction process. The elevator shaft wall conventionally consists of shear walls, and the construction workload of steel bars, templates and concrete is large, but construction staff can hardly construct in an elevator shaft area, and mainly the lower part needs to establish a construction platform to meet the requirement of staff operation. In addition, the vertical straight-through of the elevator shaft has larger risk of falling at the edge and striking objects at the lower part, and is particularly critical for high-rise and super-high-rise structures, large in elevator shaft height and large in cavity range and closed elevator shaft.
The patent application document with the application number of CN202210303576.X discloses an elevator shaft lifting construction protection operation platform, which comprises a protection platform capable of being hung and lowered into an elevator shaft, a plurality of telescopic blocks movably inserted at the side surface of the protection platform, a driving mechanism arranged in the protection platform and a lifting mechanism arranged on the upper surface of the protection platform; the driving mechanism is used for driving the telescopic blocks to extend out of the protection platform so that the telescopic blocks penetrate into the reserved holes of the elevator shaft wall to support the protection platform; the lifting mechanism is used for supporting the staff to ascend or descend.
Above-mentioned elevator shaft lifting construction protection operation platform breaks down at elevating system, leads to the protection platform to cause personnel to hurt or the structure is impaired easily when descending fast suddenly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a platform for well dismantling, which solves the problems that personnel injury or structural damage are easy to cause when a protection platform suddenly and rapidly descends in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a well removal platform, comprising:
a support frame;
the operation platform is connected to the support frame in a sliding manner along the vertical direction, the bottom of the operation platform is provided with a containing groove, an air bag is arranged in the containing groove, and certain pressure is arranged in the air bag;
the sealing plate is connected to the opening of the accommodating groove in a sealing way and props against the air bag so as to enable the air bag part to be in a folded state;
the locking structure is connected between the sealing plate and the inner wall of the accommodating groove to be locked and fixed;
and the acceleration detector is arranged on the operation platform and connected with the locking structure, and the locking structure is unlocked when the acceleration detector detects that the acceleration exceeds a set value.
Working principle:
the support frame is fixedly arranged in the well, the staff and the structure in the well dismantling process are positioned on the operation platform, and the operation platform moves on the support frame along the vertical direction according to the designed speed to transport the staff and the structure in the well dismantling process; when the acceleration detector detects that the descending acceleration of the operation platform exceeds a set value, the locking structure is unlocked to enable the sealing plate to break away from sealing of the accommodating groove and offset of the air bag, and the air bag expands outwards of the accommodating groove to extend to the position below the operation platform partially; when the operation platform is contacted with the bottom of the well, the air bag is contacted with the bottom of the well to buffer.
Compared with the prior art, the invention has the following beneficial effects:
the platform for well dismantling mainly comprises a supporting frame, an operating platform, a sealing plate, a locking structure and an acceleration detector, and can release the sealing of the sealing plate to the accommodating groove and the counterbalance to the air bag when the descending acceleration of the operating platform exceeds a set value, and buffer the air bag by contacting with the bottom of the well, so that the safety of staff and the structure on the operating platform is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the operating platform of FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
fig. 4 is a partial enlarged view of the portion B in fig. 1.
Reference numerals in the drawings of the specification include: the device comprises a supporting frame 1, an operating platform 2, a sealing plate 3, a containing groove 4, an air bag 5, a power unit 6, a take-up pulley 7, a traction rope 8, a driver 9, an adjusting screw rod 10, a driving bevel gear 11, a driven bevel gear 12, an inner sealing ring 13, an outer sealing ring 14 and a locking block 15.
Detailed Description
The invention is described in further detail below by way of specific embodiments:
as shown in fig. 1 and 2, an embodiment of the present invention provides a platform for well dismantling, which includes a support frame 1, an operation platform 2, a sealing plate 3, a locking structure and an acceleration detector;
the operation platform 2 is connected to the support frame 1 in a sliding manner along the vertical direction, the bottom of the operation platform 2 is provided with an accommodating groove 4, an air bag 5 is arranged in the accommodating groove 4, and certain pressure is arranged in the air bag 5;
the sealing plate 3 is connected with the opening of the accommodating groove 4 in a sealing way and abuts against the air bag 5 so that the air bag 5 is partially in a folded state;
the locking structure is connected between the sealing plate 3 and the inner wall of the accommodating groove 4 for locking and fixing;
the acceleration detector is arranged on the operation platform 2 and is connected with the locking structure, and the locking structure is unlocked when the acceleration detector detects that the acceleration exceeds a set value.
The operation is as follows:
the support frame 1 is fixedly arranged in a well, a worker and a structure in the well dismantling process are positioned on the operation platform 2, and the operation platform 2 moves on the support frame 1 along the vertical direction according to the designed speed to transport the worker and the structure in the well dismantling process; when the acceleration detector detects that the descending acceleration of the operation platform 2 exceeds a set value, the locking structure is unlocked to enable the sealing plate 3 to be separated from the sealing of the accommodating groove 4 and separate from the abutting of the air bag 5, and the air bag 5 expands outwards of the accommodating groove 4 to partially extend below the operation platform 2; when the operation platform 2 is in contact with the bottom of the well, the airbag 5 is first in contact with the bottom of the well to perform buffering.
In this embodiment, a fence may be provided at the edge of the operation platform 2 to improve safety.
As shown in fig. 1, according to another embodiment of the present invention, the platform for well dismantling further comprises a vertical traction mechanism connected between the top of the support frame 1 and the operation platform 2, wherein the operation platform 2 is pulled by the vertical traction mechanism, so that the operation platform 2 slides on the support frame 1 along the vertical direction, and the structure and staff in the well dismantling process are transferred; when the vertical traction mechanism breaks down and the operation platform 2 suddenly and rapidly descends, the acceleration detector detects that the acceleration of the operation platform 2 in the descending process exceeds a set value, the locking structure is unlocked to enable the sealing plate 3 to break away from the sealing of the accommodating groove 4 and break away from the abutting of the air bag 5, and the air bag 5 expands outwards of the accommodating groove 4 to partially extend below the operation platform 2; when the operation platform 2 is in contact with the bottom of the well, the airbag 5 is first in contact with the bottom of the well to perform buffering.
Based on the scheme:
the vertical traction mechanism comprises a power machine 6 and a traction assembly;
wherein the power device 6 is fixedly arranged at the top of the support frame 1;
the traction assembly is connected between the power machine 6 and the operating platform 2.
Here: the power unit 6 may be a motor, preferably a stepper motor; the power unit 6 provides power to enable the traction assembly to carry out traction on the operation platform 2 so that the operation platform 2 slides on the support frame 1 along the vertical direction to transfer the structure and staff in the well dismantling process.
In this embodiment:
the traction assembly comprises two take-up wheels 7, the two take-up wheels 7 are arranged at the top of the support frame 1 in parallel in a rotating mode, the two take-up wheels 7 are connected in a transmission mode through a transmission structure, and the transmission structure is connected with the power device 6; each take-up pulley 7 is wound with a traction rope 8 which is connected with the operating platform 2.
The power device 6 operates to enable the two wire-collecting wheels 7 to synchronously rotate forwards and reversely through a transmission structure, and the two wire-collecting wheels 7 synchronously collect or pay off the respectively connected traction ropes 8, so that the operation platform 2 moves upwards or downwards on the support frame 1 along the vertical direction; the traction rope 8 may be a steel wire rope, and has sufficient structural strength.
Meanwhile, the transmission structure can comprise two belt pulleys, the two belt pulleys are connected through belt transmission, one belt pulley is coaxially connected with one take-up pulley 7 and the power device 6, the other belt pulley is coaxially connected with the other take-up pulley 7 and is rotationally connected to the supporting plate, and the supporting plate is fixedly connected to the top of the supporting frame 1.
When the power device 6 runs, the wire winding wheel 7 and the belt wheel connected with the power device are driven to rotate, the belt wheel drives the other wire winding wheel 7 to synchronously rotate through the belt, and the two traction ropes 8 synchronously drag the operation platform 2 so as to enable the operation platform 2 to stably slide.
Here: the failure of the vertical traction mechanism may be specifically that the power unit 6, the traction rope 8, the belt and the like fail, which results in the sudden and rapid descent of the operation platform 2.
As shown in fig. 2, according to another embodiment of the present invention, the platform for well dismantling is formed in such a manner that a space is formed outside the air bag 5 in the accommodating groove 4, and the pressure in the space is the same as the pressure in the air bag 5.
For example: after the installation is completed, the air pressure rushing into the air bag 5 is 3 atmospheres, and the air pressure rushing into the idle space outside the air bag 5 in the accommodating groove 4 is also 3 atmospheres; when the locking structure is unlocked, the pressure in the idle space is larger than the pressure outside the operation platform 2, so that the sealing plate 3 is separated from the notch of the accommodating groove 4 quickly, the pressure in the idle space is released to the outside atmospheric pressure, meanwhile, the air bag 5 is separated from the sealing plate 3 to be offset, the pressure is larger than the pressure in the idle space, the air bag 5 is expanded quickly, and part of the air bag 5 extends out to the lower side of the operation platform 2 to buffer the operation platform 2 which suddenly accelerates to fall.
The pressure in the idle space is the same as the pressure in the air bag 5 to make the pressure in the air bag 5 the same as the pressure in the air bag 5, and the safety of the air bag 5 assembled in the accommodating groove 4 can be improved.
In this embodiment:
the air bag 5 and the idle space are connected with air charging pipes arranged on the outer wall of the operation platform 2, the air inlets of the air charging pipes are connected with sealing caps in a threaded manner, and air is injected into the air bag 5 or the idle space through the corresponding air charging pipes so as to achieve the required pressure; the one-way valve can be arranged on the inflation tube so that gas can be conveniently flushed into the air bag 5 or the idle space, and the gas in the air bag 5 or the idle space can not be discharged from the inflation tube, thereby being beneficial to maintaining the pressure in the air bag 5 or the idle space.
As shown in fig. 2, 3 and 4, according to another embodiment of the present invention, the well dismantling platform is provided with the accommodating groove 4 arranged in a ring shape at the bottom of the operation platform 2, the air bag 5 and the sealing plate 3 are both in a ring shape, and the locking structure is located in the central hole of the sealing plate 3.
In this embodiment:
through the reasonable arrangement of the shape of the accommodating groove 4, the air bag 5 and the sealing plate 3, the installation hole is formed in the middle of the operation platform 2, so that the operation platform 2 can slide on the operation platform 1 along the vertical direction by penetrating through the installation hole, and meanwhile, the air bag 5 is large enough, and the air bag can have enough contact area when in contact with the bottom in the well so as to effectively buffer.
Based on the scheme:
the bottom of the operation platform 2 is provided with a mounting cavity positioned in a central hole of the sealing plate 3, and the locking structure comprises a driver 9, an adjusting screw rod 10 and a transmission part;
wherein the driver 9 is arranged in the mounting cavity and is connected with the acceleration detector;
the adjusting screw rod 10 is rotatably arranged in the mounting cavity, two ends of the adjusting screw rod are connected with locking blocks 15 which move linearly in a threaded manner, and the two locking blocks 15 freely penetrate into the opening of the accommodating groove 4 to abut against the sealing plate 3 for locking and fixing;
the transmission part is connected between the driver 9 and the adjusting screw 10.
Here: the driver 9 can be a motor, the motor is in communication connection or electric connection with the acceleration detector, the acceleration detector can be an acceleration sensor, and the acceleration sensor can be a VB40 LoRa intelligent Wen Zhen compound sensor; in the normal sliding process of the operation platform 2 on the support frame 1, sliding is performed in a mode that the constant speed or the acceleration is smaller than 1m/s2 (except when the operation platform 2 is started or stopped); when the operation platform 2 suddenly accelerates and descends due to a fault, for example, when the acceleration detector detects that the descending acceleration of the operation platform 2 exceeds 4m/s2, the driver 9 is started to drive the transmission part to drive the adjusting screw 10 to rotate so as to control the two locking blocks 15 to move in opposite directions, and the two locking blocks 15 are separated from locking the sealing plate 3; the sealing plate 3 falls off from the notch of the accommodating groove 4 rapidly under the action of gravity and the pressure in the idle space, the air bag 5 is inflated rapidly, and the air bag 5 partially extends to the lower part of the operation platform 2 to buffer the operation platform 2 which suddenly accelerates to fall.
The driver 9 rotates the adjusting screw 10 in the opposite direction through the transmission part, the two locking blocks 15 move away from each other, and the two locking blocks 15 cooperate to lock and fix the sealing plate 3 at the notch of the accommodating groove 4 to seal the notch of the accommodating groove 4 again.
The acceleration sensor may transmit the detected acceleration signal to the controller, and then the controller controls the driver 9 to operate, where the model of the controller may be RMC75E-MA2-AP 2.
Because the two locking blocks 15 are propped against the bottom of the inner side of the sealing plate 3 to lock and fix the sealing plate 3, the pressure in the idle space can form a thrust force on the sealing plate 3, so that the propping force between the two locking blocks 15 and the sealing plate 3 is larger, and the locking capability on the sealing plate 3 is better; simultaneously, the one end of every locking piece 15 all is connected with the stopper, and the stopper all cooperates and offers the spacing spout on the installation cavity inner wall, and the stopper slides in corresponding spacing spout so that locking piece 15 linear movement.
Further, the transmission part comprises a drive bevel gear 11 and a driven bevel gear 12, wherein the drive bevel gear 11 is connected with the driver 9, and the driven bevel gear 12 is connected with the adjusting screw 10 and meshed with the drive bevel gear 11; the drive bevel gear 11 and the driven bevel gear 12 cooperate to drive the drive 9 and the adjusting screw 10.
As shown in fig. 2 and 3, according to another embodiment of the present invention, the well dismantling platform is formed by extending the outer side of the notch of the accommodating groove 4 to form a stepped groove, the sealing plate 3 is abutted against the inside of the stepped groove, and a sealing gasket is formed between the inner wall of the stepped groove and the sealing plate 3.
Here: sealing performance of the sealing plate 3 to the notch of the accommodating groove 4 is improved through the sealing gasket, and a stepped groove is formed at the notch of the accommodating groove 4 so that the sealing plate 3 is stably installed at the notch of the accommodating groove 4 to be matched with the sealing gasket to seal the notch of the accommodating groove 4 well.
When the two locking blocks 15 are separated from the locking of the sealing plate 3, the sealing gasket is tightly expanded between the inner wall of the stepped groove and the sealing plate 3, so that the sealing plate 3 has certain stability; the seal plate 3 can be effectively and quickly removed from the notch of the accommodation groove 4 by the pressure in the free space to open the notch of the accommodation groove 4.
Based on the scheme:
the sealing gasket comprises an inner sealing ring 13 matched on the inner ring side wall of the sealing plate 3 and an outer sealing ring 14 matched on the outer ring side wall of the sealing plate 3, and the cross sections of the inner sealing ring 13 and the outer sealing ring 14 are L-shaped.
Because the accommodating groove 4 and the sealing plate 3 are annular, the inner sealing ring 13 and the outer sealing ring 14 are matched to be tightly expanded between the inner ring of the sealing plate 3 and the inner wall of the stepped groove and between the outer ring of the sealing plate 3 and the inner wall of the stepped groove, so that the notch of the accommodating groove 4 is well sealed; the shape design of the inner seal ring 13 and the outer seal ring 14 is beneficial to increasing the contact area between the inner seal ring and the sealing plate 3 and the inner wall of the stepped groove and arranging the inner seal ring along different dimensions so as to further enhance the sealing of the notch of the accommodating groove 4.
Annular protrusions may be formed on the outer sides of the inner seal ring 13 and the outer seal ring 14 in the circumferential direction thereof, and an annular seal groove fitted with the corresponding annular protrusion is formed on the inner wall of the stepped groove to further enhance the sealing of the notch of the accommodation groove 4.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A well removal platform, comprising:
a support frame;
the operation platform is connected to the support frame in a sliding manner along the vertical direction, the bottom of the operation platform is provided with a containing groove, an air bag is arranged in the containing groove, and certain pressure is arranged in the air bag;
the sealing plate is connected to the opening of the accommodating groove in a sealing way and props against the air bag so as to enable the air bag part to be in a folded state;
the locking structure is connected between the sealing plate and the inner wall of the accommodating groove to be locked and fixed;
and the acceleration detector is arranged on the operation platform and connected with the locking structure, and the locking structure is unlocked when the acceleration detector detects that the acceleration exceeds a set value.
2. A well removal platform as claimed in claim 1, wherein: an idle space is formed outside the air bag in the accommodating groove, and the pressure in the idle space is the same as the pressure in the air bag.
3. A well removal platform as claimed in claim 1, wherein: the holding groove is arranged in the annular mode at the bottom of the operation platform, the air bag and the sealing plate are annular, and the locking structure is located in the center hole of the sealing plate.
4. A well removal platform according to claim 3, wherein: the operation platform bottom is opened there is the installation cavity that is located the centre bore of closing plate, and the locking structure includes:
the driver is arranged in the mounting cavity and is connected with the acceleration detector;
the adjusting screw rod is rotatably arranged in the mounting cavity, both ends of the adjusting screw rod are connected with locking blocks which move linearly in a threaded manner, and the two locking blocks freely penetrate into the opening of the accommodating groove to abut against the sealing plate for locking and fixing;
and the transmission part is connected between the driver and the adjusting screw rod.
5. The well demolition platform of claim 4, wherein the transmission comprises:
a drive bevel gear connected to the driver;
and the driven bevel gear is connected with the adjusting screw rod and meshed with the driving bevel gear.
6. A well removal platform according to claim 3, wherein: the notch of the accommodating groove extends to form a stepped groove, the sealing plate abuts against the stepped groove, and a sealing gasket is formed between the inner wall of the stepped groove and the sealing plate.
7. The platform for well dismantling according to claim 6, wherein the sealing gasket comprises an inner sealing ring matched on the side wall of the inner ring of the sealing plate and an outer sealing ring matched on the side wall of the outer ring of the sealing plate, and the cross sections of the inner sealing ring and the outer sealing ring are L-shaped.
8. A platform for well removal according to claim 1, wherein the top of the support frame is provided with a vertical traction mechanism connected to the operating platform.
9. The well demolition platform of claim 8, wherein the vertical traction mechanism comprises:
the power device is fixedly arranged at the top of the support frame;
and the traction assembly is connected between the power device and the operation platform.
10. The well removal platform of claim 9, wherein the tractor assembly comprises:
the two wire-winding wheels are arranged at the top of the support frame in parallel in a rotating manner and are connected with each other in a transmission manner through a transmission structure, and the transmission structure is connected with the power device; each take-up pulley is wound with a traction rope which is connected with the operating platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310889310.2A CN116971580A (en) | 2023-07-19 | 2023-07-19 | Platform for well dismantling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310889310.2A CN116971580A (en) | 2023-07-19 | 2023-07-19 | Platform for well dismantling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116971580A true CN116971580A (en) | 2023-10-31 |
Family
ID=88472383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310889310.2A Pending CN116971580A (en) | 2023-07-19 | 2023-07-19 | Platform for well dismantling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116971580A (en) |
-
2023
- 2023-07-19 CN CN202310889310.2A patent/CN116971580A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102152310B (en) | Underground rescue manipulator | |
| CN106586774B (en) | Ultra-large type elevator for being used in building large ship or offshore factory | |
| KR101478842B1 (en) | Modernizing method of existing elevator and elevator apparatus | |
| CN108979114B (en) | Full-automatic fork-shearing type robot climbing frame | |
| CN116971580A (en) | Platform for well dismantling | |
| CN106915711A (en) | A kind of single lowering or hoisting gear for driving multistage synchronization lifting | |
| CN114837454B (en) | Automatic translation device for building | |
| CN105110124A (en) | Two-point and one-line type trigger device protection system | |
| CN111502372B (en) | Flat-layer anti-falling structure and method applied to stereo garage | |
| CN219652555U (en) | Novel building tower crane capable of lifting | |
| CN111186753B (en) | Work control method of slide rail type mobile platform for building tower crane | |
| CN209740630U (en) | Intelligent detection system for hanging basket anti-falling device | |
| CN218893342U (en) | Elevator safety protection platform | |
| CN2775016Y (en) | Headframe type two purpose construction lift for person and goods | |
| CN2357120Y (en) | Creepage extension type drilling rig | |
| CN111764498B (en) | Emergency disposal equipment for integrally lifting air corridor among super-high group of towers and use method | |
| CN219078798U (en) | Overload protection device for elevator car | |
| CN218202101U (en) | Novel lifting platform safety device | |
| CN113602933A (en) | Anti-falling speed reduction device for building construction elevator | |
| CN215439188U (en) | Protection device for construction elevator | |
| CN217867853U (en) | Tower crane with labor-saving climbing function and high safety | |
| CN102976183A (en) | Construction lift for building under construction | |
| CN210887393U (en) | Boarding ladder system and engineering vehicle | |
| CN114718054B (en) | Emergency protection device for manual hole digging pile | |
| CN115404827B (en) | Automatic closing device and method for orifice cover plate of hydropower station storage door slot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |