CN113562673B - Auxiliary lifting device for high-place pipeline installation - Google Patents
Auxiliary lifting device for high-place pipeline installation Download PDFInfo
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- CN113562673B CN113562673B CN202111035119.9A CN202111035119A CN113562673B CN 113562673 B CN113562673 B CN 113562673B CN 202111035119 A CN202111035119 A CN 202111035119A CN 113562673 B CN113562673 B CN 113562673B
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- fixed
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- distribution box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses an auxiliary lifting device for high-place pipeline installation, which comprises a base, wherein a distribution box is fixed on the base, universal wheels are respectively installed at four corners of the lower side wall of the base, a fixed support is fixed on the base, a hydraulic rod is fixed on the outer wall of the fixed support, an installation plate is vertically and upwards fixed at the driving end of the hydraulic rod, two fixed pulleys are installed on the installation plate, a winch is fixed on the upper side wall of the base, and a steel wire rope wound by the two fixed pulleys is fixed at the output end of the winch. According to the invention, the height of the hook is adjusted, the pipeline is conveyed by moving the hook upwards, the height of the platform is adjusted by the arranged scissor type lifting frame, so that fine adjustment and operation of workers are facilitated, the mounting plate is fixed by the arranged clamping plate, the mounting plate is convenient to disassemble and maintain, and the filter screen is cleaned when the temperature in the distribution box is too high, so that the circulation of air flow in the distribution box is ensured, and the working stability of internal elements of the distribution box is ensured.
Description
Technical Field
The invention relates to the technical field of textile machinery, in particular to an auxiliary lifting device for high-altitude pipeline installation.
Background
The mode that traditional overhead pipeline construction mostly adopted the manual work to use the scaffold to lift the pipe installation, pipeline weight is big, generally needs four at least simultaneous operations, and the human input is huge, and the construction is slow, at engineering job site, to the installation of the aerial pipeline of eminence in higher space places such as basement, garage, adopt manpower and removal scaffold, tools such as ladder to accomplish more, because the pipeline is great for metal material weight mostly, exists certain danger. In places such as basements and garages, barriers such as door openings and door frames exist, so that large machinery cannot enter and is difficult to transfer. After the pipeline is installed and formed, adjustment is difficult and laborious.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides an auxiliary lifting device for high-altitude pipeline installation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a supplementary hoisting device of eminence piping erection, includes the base, be fixed with the block terminal on the base, the universal wheel is all installed to the lower side wall four corners department of base, be fixed with the fixed bolster on the base, the outer wall of fixed bolster is fixed with the hydraulic stem, the vertical upwards being fixed with the mounting panel of drive end of hydraulic stem, install two fixed pulleys on the mounting panel, the last side wall of base is fixed with the hoist engine, the output of hoist engine is fixed with around the wire rope of establishing two fixed pulley settings, wire rope's end fixing has the couple, the last side wall of base still is equipped with cuts the formula crane, the upper end of cutting the formula crane is connected with the platform, be fixed with the staircase on the outer wall of platform, the last side wall of platform is fixed with the guardrail.
Preferably, a brake is mounted on each universal wheel.
Preferably, be equipped with the mounting panel in the block terminal, the spout has all been seted up to the both sides inner wall of block terminal, the both ends of mounting panel all are located to slide in the spout, the inside cavity of being linked together with the spout of seting up in one side of block terminal, it is provided with the cardboard to slide in the cavity, the cardboard is the setting of U type, the interior roof and the lower lateral wall of cardboard all set up with mounting panel assorted bayonet socket, it is provided with trapezoidal piece to slide in the cavity, be fixed with expanding spring between the inner wall of trapezoidal piece and cavity, the lower lateral wall of cardboard is fixed with the cylinder through the connecting rod, the cylinder is located the lower lateral wall of trapezoidal piece and contacts with the inclined plane of trapezoidal piece, the outer wall threaded connection of block terminal has the bolt that the tip is located the cavity.
Preferably, the fixed filter screen that is equipped with of outer wall of block terminal, the inner wall of block terminal is fixed with the cover plate, the middle part of cover plate is fixed with the draught fan that is located the filter screen inboard, the block terminal has been kept away from and has been seted up the blow vent on one side inner wall of filter screen.
Preferably, the outer wall of block terminal is fixed with the telescopic link, the vertical downward scraper blade that contacts with the filter screen outer wall of drive end of telescopic link is fixed with, be equipped with the trigger mechanism who is connected with the telescopic link on the block terminal.
Preferably, trigger mechanism includes that the fixed aqua storage tank of establishing at the block terminal upside of inlaying, the outer wall of block terminal is fixed with the diaphragm, the last lateral wall of diaphragm is fixed with the switch that is connected with the telescopic link, the last lateral wall of aqua storage tank is connected with the outlet duct, the tip activity of outlet duct is provided with the piston post, the outer wall cover of piston post is equipped with reset spring, reset spring's both ends respectively with the outer wall of piston post and the lower lateral wall fixed connection of outlet duct.
Preferably, a moving rod is slidably inserted into the upper side wall of the air outlet pipe, an air outlet is formed in the upper end of the moving rod, an air inlet is formed in the outer wall of the moving rod and communicated with the air outlet through a flow channel, and a U-shaped rod is fixedly connected between the outer wall of the driving end of the telescopic rod and the moving rod.
Compared with the prior art, this supplementary hoisting device of eminence piping erection's advantage lies in:
1. the mounting plate and the fixed pulley are driven by the hydraulic rod to move upwards to the hoisting height, when the pipeline is hoisted subsequently, the pipeline is hung on the hook, the steel wire rope is wound by the winch, the hook and the pipeline are driven to move upwards, the transporting height is adjustable, and the transporting is rapid;
2. when the mounting plate is mounted, two ends of the mounting plate are inserted into the sliding grooves, the bolts are screwed in, the bolts extrude the trapezoidal block to move towards the right side, the cylinders and the clamping plates move downwards through the contact of the inclined surfaces of the trapezoidal block and the cylinders, and the clamping openings are clamped on the outer wall of the end part of the mounting plate to fix the mounting plate;
3. when the impurities on the surface of the filter screen are excessive, the heat dissipation capacity in the distribution box is reduced, so that the temperature is increased, water in the water storage tank is heated and evaporated under the action of the temperature, the piston column is pushed to move downwards along with the continuous increase of water vapor, the switch is pressed, the telescopic rod can be electrified to start working, the scraper plate is driven to move downwards, and the impurities on the surface of the filter screen are scraped;
in conclusion, the height of the hook is adjusted, the pipeline is conveyed by moving the hook upwards, the height of the platform is adjusted by the arranged scissor type lifting frame, fine adjustment and operation of workers are facilitated, the mounting plate is fixed by the arranged clamping plate, the mounting plate is convenient to detach and maintain, the filter screen is cleaned when the temperature in the distribution box is too high, the circulation of air flow in the distribution box is ensured, and the working stability of internal elements of the distribution box is ensured.
Drawings
Fig. 1 is a schematic structural view of an auxiliary lifting device for high pipeline installation according to the present invention;
fig. 2 is a schematic structural diagram of a distribution box in an auxiliary lifting device for high-altitude pipeline installation according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a partial side view of a clamp plate in an overhead pipe installation auxiliary hoist according to the present invention.
In the figure: the device comprises a universal wheel 1, a base 2, a filter screen 3, a distribution box 4, a staircase 5, a platform 6, a guardrail 7, a scissor type lifting frame 8, a winch 9, a water storage tank 10, a fixing support 11, a hydraulic rod 12, a hook 13, a fixed pulley 14, a gas outlet pipe 15, a piston column 16, a return spring 17, a switch 18, a telescopic rod 19, a U-shaped rod 20, a scraper 21, a moving rod 22, an air inlet 23, a draught fan 24, a clamping plate 25, a trapezoidal block 26, a bolt 27, a telescopic spring 28, a cylinder 29, a vent 30 and a bayonet 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, a supplementary hoisting device of eminence piping erection, including base 2, be fixed with block terminal 4 on the base 2, universal wheel 1 is all installed to the lower lateral wall four corners department of base 1, all installs the brake on every universal wheel 1, and the universal wheel 1 of setting can realize holistic removal and the change of direction, and accessible brake carries out the lock of universal wheel 1 and dies after the removal, and then guarantees the stability of device.
Be fixed with fixed bolster 11 on base 2, the outer wall of fixed bolster 11 is fixed with hydraulic stem 12, the vertical upwards fixed mounting panel that has of drive end of hydraulic stem 12, install two fixed pulleys 14 on the mounting panel, base 2's last lateral wall is fixed with hoist engine 9, the output of hoist engine 9 is fixed with around the wire rope that establishes two fixed pulleys 14 settings, wire rope's end fixing has couple 13, drive mounting panel and fixed pulley 14 through hydraulic stem 12 and up move to the height of hoist and mount, when the hoist and mount of pipeline is carried out subsequently, hang the pipeline and put on couple 13, carry out wire rope's rolling through hoist engine 9, drive couple 13 and pipeline up move, the transport height-adjustable, the transport is fast.
The last lateral wall of base 1 still is equipped with cuts formula crane 8, the upper end of cutting formula crane 8 is connected with platform 6, be fixed with staircase 5 on the outer wall of platform 6, the last lateral wall of platform 6 is fixed with guardrail 7, staff's accessible staircase 5 climbs to on the platform 6, personnel's protection can be carried out to the guardrail 7 of setting, the required instrument of portability simultaneously, the rethread cuts the lift work that formula crane 8 carried out platform 6, adjust staff's height, also make things convenient for the staff to finely tune the position of pipeline simultaneously.
The mounting plate is arranged in the distribution box 4, sliding grooves are formed in the inner walls of two sides of the distribution box 4, two ends of the mounting plate are located in the sliding grooves and slide, a cavity communicated with the sliding grooves is formed in one side of the distribution box 4, a clamping plate 25 is arranged in the cavity in a sliding mode, the clamping plate 25 is arranged in a U-shaped mode, bayonets 31 matched with the mounting plate are formed in the inner wall and the lower side wall of the clamping plate 25, trapezoidal blocks 26 are arranged in the cavity in a sliding mode, telescopic springs 28 are fixed between the trapezoidal blocks 26 and the inner wall of the cavity, a cylinder 29 is fixed to the lower side wall of the clamping plate 25 through a connecting rod, the cylinder 29 is located in the lower side wall of the trapezoidal blocks 26 and is in contact with the inclined surfaces of the trapezoidal blocks 26, bolts 27 with the end portions located in the cavity are in threaded connection with the outer wall of the distribution box 4, when the mounting plate is mounted, two ends of the mounting plate are inserted into the sliding grooves, the bolts 27 are screwed in, the bolts 27 extrude the trapezoidal blocks 26 to move towards the right side, the cylinders are in contact with the inclined surfaces of the cylinders 29, the clamping plates, the clamping grooves are extruded by the clamping cylinders 29, and the clamping plates are clamped on the outer wall of the mounting plate;
when the follow-up dismantlement that carries out the mounting panel, screw out bolt 27 to the outside, trapezoidal piece 26 moves back under the reverse elasticity of expanding spring 28, and trapezoidal piece 26 no longer supports tight cylinder 29, and the mounting panel can be followed the interior roll-off of spout this moment, carries out the dismantlement of mounting panel, and the convenience is changed the maintenance such as the device of mounting panel.
The trigger mechanism includes the aqua storage tank 10 of fixed the setting in block terminal 4 upside, the outer wall of block terminal 4 is fixed with the diaphragm, the last lateral wall of diaphragm is fixed with the switch 18 that is connected with telescopic link 19, switch 18 passes through the wire and is connected with telescopic link 19 and external power source, the last lateral wall of aqua storage tank 10 is connected with outlet duct 15, the tip activity of outlet duct 15 is provided with piston post 16, the outer wall cover of piston post 16 is equipped with reset spring 17, reset spring 17's both ends respectively with the outer wall of piston post 16 and the lower lateral wall fixed connection of outlet duct 15, when filter screen 3 surface impurity is too much, the air current that draught fan 24 introduced reduces, the inside heat dissipation capacity of block terminal 4 reduces, lead to the temperature rise, under the temperature effect, the water in aqua storage tank 10 is heated and evaporates, along with the continuous increase of aqueous vapor, promote piston post 16 and move down, carry out the pressing of switch 18, telescopic link 19 can the circular telegram and begin work, and then drive scraper blade 21 and move down, strike off of filter screen 3 surface impurity.
The upper side wall of the air outlet pipe 15 is inserted with a moving rod 22 in a sliding mode, the upper end of the moving rod 22 is provided with an air outlet, the outer wall of the moving rod 22 is provided with an air inlet 23, the air inlet 23 is communicated with the air outlet through a flow channel, a U-shaped rod 20 is fixedly connected between the outer wall of a driving end of a telescopic rod 19 and the moving rod 22, when the driving end of the telescopic rod 19 extends out, the moving rod 22 is driven by the U-shaped rod 20 to move downwards, the air inlet 23 enters the air outlet pipe 15, water vapor in the air outlet pipe 15 can enter the air outlet through the air inlet 23 and is then led out from the air outlet, the piston column 16 is not extruded any more, under the reverse elasticity of a return spring 17, the piston column 16 can move upwards, the switch 18 is not pressed any more, the switch 18 is disconnected, the telescopic rod 19 stops working, the driving end of the telescopic rod 19 can drive a scraper 21 and the U-shaped rod 20 to retract, the air inlet 23 moves upwards to separate from the air outlet pipe 15, the sealing of the air outlet pipe 15 can be performed, when the surface of the filter screen 3 is blocked next time, the water heating is continued, and the surface of the filter screen 3 is cleaned again.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. A high-altitude pipeline installation auxiliary lifting device comprises a base (2), and is characterized in that a distribution box (4) is fixed on the base (2), universal wheels (1) are installed at four corners of the lower side wall of the base (2), a fixed support (11) is fixed on the base (2), a hydraulic rod (12) is fixed on the outer wall of the fixed support (11), a mounting plate is vertically and upwards fixed at the driving end of the hydraulic rod (12), two fixed pulleys (14) are installed on the mounting plate, a winch (9) is fixed on the upper side wall of the base (2), a steel wire rope arranged around the two fixed pulleys (14) is fixed at the output end of the winch (9), a hook (13) is fixed at the end of the steel wire rope, a shear type lifting frame (8) is further arranged on the upper side wall of the base (2), a platform (6) is connected to the upper end of the shear type lifting frame (8), a staircase (5) is fixed on the outer wall of the platform (6), and a guardrail (7) is fixed on the upper side wall of the platform (6);
the distribution box is characterized in that a mounting plate is arranged in the distribution box (4), sliding grooves are formed in the inner walls of two sides of the distribution box (4), two ends of the mounting plate are located in the sliding grooves and slide, a cavity communicated with the sliding grooves is formed in one side of the distribution box (4), a clamping plate (25) is arranged in the cavity in a sliding mode, the clamping plate (25) is arranged in a U-shaped mode, bayonets (31) matched with the mounting plate are formed in the inner top wall and the lower side wall of the clamping plate (25), trapezoidal blocks (26) are arranged in the cavity in a sliding mode, telescopic springs (28) are fixed between the trapezoidal blocks (26) and the inner wall of the cavity, a cylinder (29) is fixed to the lower side wall of the clamping plate (25) through a connecting rod, the cylinder (29) is located on the lower side wall of the trapezoidal blocks (26) and contacts with the inclined plane of the trapezoidal blocks (26), and a bolt (27) with the end portion located in the cavity is connected to the outer wall of the distribution box (4) through threads;
a filter screen (3) is fixedly embedded in the outer wall of the distribution box (4), a cover plate is fixed on the inner wall of the distribution box (4), a draught fan (24) positioned on the inner side of the filter screen (3) is fixed in the middle of the cover plate, and a vent hole (30) is formed in the inner wall of one side, far away from the filter screen (3), of the distribution box (4);
an expansion link (19) is fixed on the outer wall of the distribution box (4), a scraper (21) which is in contact with the outer wall of the filter screen (3) is vertically and downwards fixed at the driving end of the expansion link (19), and a trigger mechanism connected with the expansion link (19) is arranged on the distribution box (4);
trigger mechanism is including fixed aqua storage tank (10) of inlaying and establishing at block terminal (4) upside, the outer wall of block terminal (4) is fixed with the diaphragm, the last lateral wall of diaphragm is fixed with switch (18) that are connected with telescopic link (19), the last lateral wall of aqua storage tank (10) is connected with outlet duct (15), the tip activity of outlet duct (15) is provided with piston post (16), the outer wall cover of piston post (16) is equipped with reset spring (17), the both ends of reset spring (17) respectively with the outer wall of piston post (16) and the lower lateral wall fixed connection of outlet duct (15).
2. A high pipe installation auxiliary lifting device as claimed in claim 1, wherein each of the castor wheels (1) is provided with a brake.
3. The auxiliary lifting device for high pipeline installation according to claim 1, wherein a moving rod (22) is slidably inserted into the upper side wall of the air outlet pipe (15), an air outlet is formed in the upper end of the moving rod (22), an air inlet (23) is formed in the outer wall of the moving rod (22), the air inlet (23) is communicated with the air outlet through a flow passage, and a U-shaped rod (20) is fixedly connected between the outer wall of the driving end of the telescopic rod (19) and the moving rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035119.9A CN113562673B (en) | 2021-09-05 | 2021-09-05 | Auxiliary lifting device for high-place pipeline installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035119.9A CN113562673B (en) | 2021-09-05 | 2021-09-05 | Auxiliary lifting device for high-place pipeline installation |
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| Publication Number | Publication Date |
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| CN113562673A CN113562673A (en) | 2021-10-29 |
| CN113562673B true CN113562673B (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111035119.9A Active CN113562673B (en) | 2021-09-05 | 2021-09-05 | Auxiliary lifting device for high-place pipeline installation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115259035B (en) * | 2022-07-27 | 2024-02-27 | 国网安徽省电力有限公司来安县供电公司 | Lifting operation table for overhauling transformer |
| CN118083787B (en) * | 2024-04-24 | 2024-07-26 | 江苏兆铝金属制品有限公司 | Aluminum shell transferring pulley device of engine |
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| CN105692515A (en) * | 2016-04-26 | 2016-06-22 | 邹平县供电公司 | Anti-falling electric power construction lifter |
| CN106430007A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Marine lift |
| CN111692656A (en) * | 2020-07-06 | 2020-09-22 | 东营奇好日用品有限公司 | Higher outer quick-witted erection equipment of air conditioner of security |
| CN111827695A (en) * | 2020-07-31 | 2020-10-27 | 周玉龙 | Construction device for prefabricated building and construction method thereof |
| CN211971710U (en) * | 2020-04-10 | 2020-11-20 | 大唐郓城发电有限公司 | Thermal power factory building boiler overhauls device |
| CN213171199U (en) * | 2020-09-29 | 2021-05-11 | 常州市江山新型建筑材料有限公司 | A hoisting apparatus for evaporating press aerated concrete slab processing |
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2021
- 2021-09-05 CN CN202111035119.9A patent/CN113562673B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692515A (en) * | 2016-04-26 | 2016-06-22 | 邹平县供电公司 | Anti-falling electric power construction lifter |
| CN106430007A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Marine lift |
| CN211971710U (en) * | 2020-04-10 | 2020-11-20 | 大唐郓城发电有限公司 | Thermal power factory building boiler overhauls device |
| CN111692656A (en) * | 2020-07-06 | 2020-09-22 | 东营奇好日用品有限公司 | Higher outer quick-witted erection equipment of air conditioner of security |
| CN111827695A (en) * | 2020-07-31 | 2020-10-27 | 周玉龙 | Construction device for prefabricated building and construction method thereof |
| CN213171199U (en) * | 2020-09-29 | 2021-05-11 | 常州市江山新型建筑材料有限公司 | A hoisting apparatus for evaporating press aerated concrete slab processing |
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| CN113562673A (en) | 2021-10-29 |
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