CN110778099A - Full-automatic mechanized lifting construction equipment and use method - Google Patents
Full-automatic mechanized lifting construction equipment and use method Download PDFInfo
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- CN110778099A CN110778099A CN201911239748.6A CN201911239748A CN110778099A CN 110778099 A CN110778099 A CN 110778099A CN 201911239748 A CN201911239748 A CN 201911239748A CN 110778099 A CN110778099 A CN 110778099A
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- 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
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- 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
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses full-automatic mechanized lifting construction equipment, and belongs to the field of building lifting equipment. Comprises a base, a fixed frame and a guide frame which are oppositely arranged are fixedly connected on the base, a driving motor is fixedly arranged on the inner side of the fixed frame, a spiral lifting rod is fixedly connected with the output end of the driving motor, one end of the spiral lifting rod, which is far away from the driving motor, is connected with a lifting platform in a matching way, a control system and a guardrail are arranged on the lifting platform, the control system is electrically connected with the driving motor, one end of the lifting platform, which is far away from the spiral lifting rod, extends into the guide frame, a guide wheel and a locking component are arranged on the lifting platform, which is positioned on the inner side of the guide frame, a track for the guide wheel to walk, when the lifting platform rises to a certain height, the locking assembly is matched with the positioning piece to realize fixation, the device has simple operation and structure, limited occupied space, higher safety and operation efficiency.
Description
Technical Field
The invention belongs to the technical field of building lifting equipment, and particularly relates to full-automatic mechanized lifting construction equipment and a using method thereof.
Background
Building lifting equipment's use is for people makes things convenient for the construction at the in-process of architectural decoration, after the main part construction is accomplished, carry out indoor outer fitment, building work such as spraying, often adopt the building frame to do the scheme that basis and lifting means combined use, people are in the building work process, often need be according to construction site condition, the scaffold is built out to the manual work, demolish after the work is accomplished again, work load and occupation space are big and operating efficiency is low, and the scaffold security of buildding temporarily is difficult to the guarantee, the incident takes place often.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides full-automatic mechanized lifting construction equipment and a using method thereof.
In order to achieve the purpose, the invention adopts the following scheme:
a full-automatic mechanized lifting construction device comprises a base, wherein a fixed frame and a guide frame which are oppositely arranged are fixedly connected on the base, a driving motor is fixedly arranged on the inner side of the fixing frame, the output end of the driving motor is fixedly connected with a spiral lifting rod, one end of the spiral lifting rod, which is far away from the driving motor, is connected with a lifting platform in a matching way, a control system and a guardrail are arranged on the lifting platform, the control system is electrically connected with the driving motor, one end of the lifting platform, which is far away from the spiral lifting rod, extends into the guide frame, the lifting platform, which is positioned at the inner side of the guide frame, is provided with a guide wheel and a locking assembly, a track for the guide wheel to run is arranged on the guide frame, a positioning piece matched with the locking component is arranged on the track, when the lifting platform rises to a certain height, the lifting platform is matched with the positioning piece through the locking assembly to realize fixation.
Further, the locking subassembly includes install bin, reset spring, ejector pin, stripper plate, connecting rod and locking piece, install bin fixed connection is on lift platform's lower surface, be equipped with reset spring in the install bin, reset spring keeps away from the one end and the stripper plate fixed connection of install bin, the one end fixed connection of ejector pin just another tip extends to lift platform's top on the stripper plate, the one end of connecting rod is rotated and is connected on the stripper plate and the other end and locking piece rotate to be connected, locking piece sliding connection is on lift platform, locking piece and setting element match and realize fixed lift platform.
Furthermore, the locking piece is a wedge-shaped block, and the width of the upper surface is smaller than that of the lower surface.
Furthermore, a winch electrically connected with the control system is additionally arranged on the lifting platform, a pulley is fixedly connected to the inner side of the guide wheel, the winch is connected with a hopper by bypassing the pulley through a steel rope, and the hopper is lifted along the side wall of the guide frame to convey materials.
Further, be located the mount inboard be equipped with anti-falling device on the lift platform, anti-falling device includes separation block, movable block and electro-hydraulic cylinder, separation block fixed connection is in the one side of the relative lift platform of mount, movable block sliding connection just the direction of motion sets up with the separation block is perpendicular on the lift platform, the movable block all is equipped with one side relatively of separation block and prevents weighing down the tooth, electro-hydraulic cylinder is connected just electro-hydraulic cylinder's output and movable block fixed connection with the control system electricity.
Furthermore, a plurality of buffer springs are evenly distributed on the base under the lifting platform, and the buffer springs are far away from a buffer plate fixedly connected with the base.
Furthermore, a wheel system and an electronic camera device which are electrically connected with the control system are arranged below the base.
The invention also discloses a using method of the full-automatic mechanical lifting construction equipment, which comprises the following steps,
s1, the constructor climbs onto the lifting platform, controls the wheel system to advance through the control system, and drives to a preset construction position with the assistance of the electronic camera device;
s2, controlling a driving motor to drive a spiral lifting rod to rotate through a control system, further driving the lifting platform to ascend, guiding the lifting platform by a guide wheel in a track, and enabling a positioning piece on the track to extrude a locking piece in a reciprocating mode in the ascending process so as to drive an extrusion plate to move up and down in a reciprocating mode, so that the side can be prevented from falling;
s3, when the lifting platform rises to a preset height, the control system controls the electric hydraulic cylinder to push the movable block to extend outwards to be matched with the blocking block on the fixed frame through the anti-falling teeth to realize the anti-falling of the side;
s4, when the materials need to be replenished, the control system is used for controlling the winch to work to drive the hopper to ascend to the lifting platform along the guide frame;
s5, after the work is finished, the constructor controls the electric hydraulic cylinder to reset and the driving motor to rotate reversely through the control system, and meanwhile, the ejector rod above the lifting platform is pressed downwards until the locking piece is separated from the positioning piece, so that the lifting platform falls stably.
Compared with the prior art, the invention can obtain the following technical effects:
1. according to the invention, the driving motor, the spiral lifting rod, the lifting platform and the control system are arranged, the control system is used for controlling the forward and reverse rotation of the driving motor so as to drive the lifting platform to ascend or descend, the guide wheels and the tracks are also arranged for guiding work in the movement process, when a certain height is reached, the locking assembly and the positioning piece are used for realizing matching to realize safety and stability in the current position, the equipment is simple in operation and structure, limited in occupied space, and higher in safety and operation efficiency.
2. According to the lifting platform, the locking assembly comprises the installation box, the reset spring, the ejector rod, the extrusion plate, the connecting rod and the locking piece, when the lifting platform rises, the positioning piece extrudes the locking piece to move towards the inner side of the lifting platform, the locking piece is always matched with the positioning piece to achieve the anti-falling function of the side, after the lifting platform rises to a certain height, the locking piece is combined with the positioning piece under the action of the reset spring to fix the lifting platform, when the lifting platform falls, the ejector rod is pressed downwards to enable the locking piece to be separated from the positioning piece, and meanwhile, the control system is used for controlling the driving motor to achieve.
3. According to the invention, the lifting platform is provided with the winch and the hopper connected with the winch to realize the supply of materials at any time, and meanwhile, the anti-falling device is arranged between the fixing frame and the lifting platform and is combined with the locking assembly to be used, so that the action surface of the spiral lifting rod can be thoroughly released, and the fatigue damage is reduced. Still be equipped with buffer spring and buffer board on the base and realize the buffering, further improve its security.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the locking assembly of the present invention;
FIG. 3 is a schematic view of the overall structure of the fall arrest device of the present invention;
fig. 4 is a control schematic of the present invention.
In the figure: 1. a base; 2. a fixed mount; 3. a guide frame; 4. a spiral lifter; 5. a drive motor; 6. a lifting platform; 7. a guardrail; 8. a control system; 9. a guide wheel; 10. a track; 11. a positioning member; 12. installing a box; 13. a return spring; 14. a top rod; 15. a pressing plate; 16. a connecting rod; 17. a locking member; 18. a winch; 19. a hopper; 20. a pulley; 21. a barrier block; 22. a movable block; 23. an electric hydraulic cylinder; 24. anti-falling teeth; 25. a buffer spring; 26. a buffer plate; 27. an electronic image pickup device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1, 2 and 4, a fully automatic mechanical lifting construction device comprises a base 1, a fixed frame 2 and a guide frame 3 which are oppositely arranged are fixedly connected to the base 1, a driving motor 5 is fixedly installed on the inner side of the fixed frame 2, a spiral lifting rod 4 is fixedly connected to the output end of the driving motor 5, one end of the spiral lifting rod 4 far away from the driving motor 5 is connected with a lifting platform 6 through screw transmission, a control system 8 and a guardrail 7 are installed on the lifting platform 6, the control system 8 is electrically connected with the driving motor 5, one end of the lifting platform 6 far away from the spiral lifting rod 4 extends into the guide frame 3, a guide wheel 9 and a locking assembly are arranged on the lifting platform 6 on the inner side of the guide frame 3, a track 10 for the guide wheel 9 to walk is arranged on the guide frame 3, a positioning part 11 matched with the locking assembly is arranged on the, when the lifting platform 6 rises to a certain height, the locking assembly is matched with the positioning piece 11 to realize fixation. The lifting platform 6 is lifted and lowered by controlling the positive and negative rotation of the driving motor 5 through the control system 8, the guide wheels 9 are used for guiding the lifting platform 6 in the track grooves 10 in the lifting or lowering process, and the locking assembly and the positioning piece 11 are matched to fix the lifting platform 6 when the lifting or lowering device is lifted or lowered to a preset height.
In this embodiment, further preferred scheme, the locking subassembly includes install bin 12, reset spring 13, ejector pin 14, stripper plate 15, connecting rod 16 and locking piece 17, install bin 12 fixed connection is on lift platform 6's lower surface, be equipped with reset spring 13 in the install bin 12, reset spring 13 keeps away from the one end and the stripper plate 15 fixed connection of install bin 12, sliding connection is in install bin 12 about stripper plate 15, the one end fixed connection of ejector pin 14 is on stripper plate 15 and another tip extends to lift platform 6's top, the one end of connecting rod 16 is rotated and is connected on stripper plate 15 and the other end and locking piece 17 rotate and be connected, locking piece 17 sliding connection is on lift platform 6 about, locking piece 17 matches with setting element 11 and realizes fixed lift platform 6. When the lifting platform 6 is in the ascending or descending process, the positioning part 11 extrudes the locking part 17 to move towards the inner side of the lifting platform 6, the locking part 17 is matched with the positioning part 11 all the time to realize the anti-falling function of the side, after the lifting platform 6 ascends to a certain height, the locking part 17 is combined with the positioning part 11 to fix the lifting platform 6 under the action of the reset spring 13, when the lifting platform descends, the locking part 17 is separated from the positioning part 11 by pressing the ejector rod 14 downwards, and meanwhile, the descending function can be realized by controlling the driving motor 5 by using the control system 8.
In this embodiment, it is further preferable that the locking member 17 is a wedge-shaped block and the width of the upper surface is smaller than that of the lower surface in order to avoid blocking during the ascending process and to achieve the anti-falling and fixing functions.
In this embodiment, in order to further improve the safety of the elevator, a plurality of buffer springs 25 are uniformly distributed on the base 1 directly below the lifting platform 6, and one end of each of the buffer springs 25 away from the base 1 is fixedly connected with a buffer plate 26.
In the embodiment, it is further preferable that a wheel system and an electronic camera 27 electrically connected to the control system 8 are provided below the base 1, and in order to ensure that the construction site is adjusted as needed, the wheel system and the electronic camera 27 are controlled to move forward and backward and adjust left and right, and the road condition is checked in all directions to ensure safety.
Example 2:
as shown in fig. 1 and 4, a winch 18 electrically connected with the control system 8 is further added on the lifting platform 6, a pulley 20 is fixedly connected to the inner side of the guide wheel 9, the winch 18 is connected with a hopper 19 by bypassing the pulley 20 through a steel rope, and the hopper 19 is lifted along the side wall of the guide frame 3 to convey materials, so that the materials are supplied at any time, and the construction efficiency is further improved.
Example 3:
as shown in fig. 1, 3 and 4, the lifting platform 6 located on the inner side of the fixed frame 2 is provided with an anti-falling device, the anti-falling device comprises a blocking block 21, a movable block 22 and an electric hydraulic cylinder 23, the blocking block 21 is fixedly connected to one side of the fixed frame 2 opposite to the lifting platform 6, the movable block 22 is slidably connected to the lifting platform 6, the moving direction of the movable block 22 is perpendicular to the blocking block 21, anti-falling teeth 24 are arranged on one side of the movable block 22 opposite to the blocking block 21, the electric hydraulic cylinder 23 is electrically connected with the control system 8, and the output end of the electric hydraulic cylinder 23 is fixedly connected with the movable block 22. When the lifting device ascends or descends to a preset height, the control system 8 is used for controlling the electric hydraulic cylinder 23 to push the movable block 22 to move outwards so as to be matched with the blocking block 21 through the anti-falling teeth 24 to realize the anti-falling function of the side, and the anti-falling device is combined with the locking assembly to be used, so that the action surface of the spiral lifting rod 4 can be completely released, and the fatigue damage is reduced.
Example 4:
a method for using full-automatic mechanical lifting construction equipment comprises the following steps,
s1, the constructor climbs onto the lifting platform 6, controls the wheel system to move forward through the control system 8, and drives to a preset construction position with the assistance of the electronic camera device 27;
s2, controlling the driving motor 5 to drive the spiral lifting rod 4 to rotate through the control system 8, further driving the lifting platform 6 to ascend, guiding the lifting platform 6 by the guide wheel 9 in the track 10, and in the ascending process, the positioning part 11 on the track 10 extrudes the locking part 17 in a reciprocating mode, further driving the extrusion plate 15 to reciprocate up and down, so that the side can be prevented from falling;
s3, when the lifting platform 6 rises to a preset height, the control system 8 controls the electric hydraulic cylinder 23 to push the movable block 22 to extend outwards to match with the blocking block 21 on the fixed frame 2 through the anti-falling teeth 24 to realize the anti-falling of the side;
s4, when the material needs to be replenished, the control system 8 is used for controlling the winch 18 to work to drive the hopper 19 to ascend to the lifting platform 6 along the guide frame 3;
s5, after the work is finished, the constructor controls the electric hydraulic cylinder 23 to reset and the driving motor 5 to rotate reversely through the control system 8, and meanwhile, the ejector rod 14 above the lifting platform 6 is pressed downwards until the locking piece 17 is separated from the positioning piece 11, so that the lifting platform 6 falls stably.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a full-automatic mechanized lifting construction equipment, includes base (1), its characterized in that, fixedly connected with relatively set up mount (2) and leading truck (3) on base (1), the inboard fixed mounting of mount (2) has driving motor (5), the output fixedly connected with spiral lifter (4) of driving motor (5), the one end that driving motor (5) were kept away from to spiral lifter (4) is connected with a lift platform (6) in a matching manner, install control system (8) and guardrail (7) on lift platform (6), control system (8) are connected with driving motor (5) electricity, the one end that spiral lifter (4) were kept away from to lift platform (6) extends to in leading truck (3), is located leading truck (3) inboard be equipped with leading wheel (9) and locking subassembly on lift platform (6), be equipped with track (10) that supply leading wheel (9) to walk on leading truck (3), be equipped with setting element (11) that match with the locking subassembly on track (10), work as lift platform (6) rise to realize fixing through locking subassembly and setting element (11) matching after the take the lead height.
2. The full-automatic mechanized lifting construction equipment according to claim 1, wherein the locking assembly comprises an installation box (12), a return spring (13), a push rod (14), an extrusion plate (15), a connecting rod (16) and a locking piece (17), the installation box (12) is fixedly connected to the lower surface of the lifting platform (6), the return spring (13) is arranged in the installation box (12), one end of the return spring (13) far away from the installation box (12) is fixedly connected with the extrusion plate (15), one end of the push rod (14) is fixedly connected to the extrusion plate (15) and the other end extends above the lifting platform (6), one end of the connecting rod (16) is rotatably connected to the extrusion plate (15) and the other end is rotatably connected with the locking piece (17), the locking piece (17) is slidably connected to the lifting platform (6), the locking piece (17) is matched with the positioning piece (11) to fix the lifting platform (6).
3. A fully automated mechanical lifting construction device according to claim 2, characterized in that the locking member (17) is a wedge-shaped block and the width of the upper surface is smaller than the width of the lower surface.
4. The full-automatic mechanized lifting construction equipment according to claim 1, wherein a winch (18) electrically connected with the control system (8) is further added on the lifting platform (6), a pulley (20) is fixedly connected to the inner side of the guide wheel (9), the winch (18) bypasses the pulley (20) through a steel rope and is connected with a hopper (19), and the hopper (19) is lifted along the side wall of the guide frame (3) to convey materials.
5. The full-automatic mechanized lifting construction equipment according to claim 1, characterized in that, the lifting platform (6) inside the fixed frame (2) is provided with an anti-falling device, the anti-falling device comprises a blocking block (21), a movable block (22) and an electric hydraulic cylinder (23), the blocking block (21) is fixedly connected to one side of the fixed frame (2) opposite to the lifting platform (6), the movable block (22) is slidably connected to the lifting platform (6) and the moving direction of the movable block is perpendicular to the blocking block (21), the movable block (22) and one side opposite to the blocking block (21) are both provided with anti-falling teeth (24), the electric hydraulic cylinder (23) is electrically connected with the control system (8) and the output end of the electric hydraulic cylinder (23) is fixedly connected with the movable block (22).
6. The full-automatic mechanized lifting construction equipment according to claim 1, wherein a plurality of buffer springs (25) are uniformly distributed on the base (1) under the lifting platform (6), and one ends of the plurality of buffer springs (25) far away from the base (1) are fixedly connected with a buffer plate (26) together.
7. The fully automatic mechanical lifting construction equipment according to claim 1, wherein a wheel system and an electronic camera device (27) electrically connected with a control system (8) are arranged below the base (1).
8. The use method of a fully automated mechanical lifting construction equipment according to any one of claims 1 to 7, comprising the steps of,
s1, the constructor climbs onto the lifting platform (6), controls the wheel system to move through the control system (8), and drives to a preset construction position with the assistance of the electronic camera device (27);
s2, controlling a driving motor (5) to drive a spiral lifting rod (4) to rotate through a control system (8) to further drive a lifting platform (6) to ascend, guiding the lifting platform (6) by a guide wheel (9) in a track (10), and in the ascending process, a positioning piece (11) on the track (10) extrudes a locking piece (17) in a reciprocating mode to drive an extrusion plate (15) to move up and down in a reciprocating mode to achieve anti-falling on the side;
s3, when the lifting platform (6) rises to a preset height, the control system (8) controls the electric hydraulic cylinder (23) to push the movable block (22) to extend outwards to be matched with the blocking block (21) on the fixed frame (2) through the anti-falling teeth (24) to realize the anti-falling of the side;
s4, when the materials need to be replenished, the control system (8) is utilized to control the winch (18) to work and drive the hopper (19) to ascend to the lifting platform (6) along the guide frame (3);
s5, after the work is finished, a constructor controls the electric hydraulic cylinder (23) to reset and the driving motor (5) to rotate reversely through the control system (8), and meanwhile, the ejector rod (14) above the lifting platform (6) is pressed downwards until the locking piece (17) is separated from the positioning piece (11), so that the lifting platform (6) falls stably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239748.6A CN110778099A (en) | 2019-12-06 | 2019-12-06 | Full-automatic mechanized lifting construction equipment and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239748.6A CN110778099A (en) | 2019-12-06 | 2019-12-06 | Full-automatic mechanized lifting construction equipment and use method |
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| CN110778099A true CN110778099A (en) | 2020-02-11 |
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| CN201911239748.6A Pending CN110778099A (en) | 2019-12-06 | 2019-12-06 | Full-automatic mechanized lifting construction equipment and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719095A (en) * | 2021-09-11 | 2021-11-30 | 青岛康太源建设集团有限公司 | Climbing protection device for building |
| CN114920164A (en) * | 2022-05-13 | 2022-08-19 | 泰安鑫杰机械有限公司 | Transformer assembly jig with prevent function of falling |
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| JPH08277079A (en) * | 1995-04-06 | 1996-10-22 | Etsuhara Yoshitada | Working elevator |
| CN206345658U (en) * | 2016-11-24 | 2017-07-21 | 宁波海迈克动力科技有限公司 | A kind of fall-preventing protection device of hoistable platform |
| CN107401277A (en) * | 2017-07-28 | 2017-11-28 | 孙小菊 | A kind of construction hoistable platform with feeding function |
| CN208327235U (en) * | 2018-07-02 | 2019-01-04 | 沈阳理工大学 | A kind of building machinery hoistable platform convenient for adjusting |
| CN109914768A (en) * | 2019-03-15 | 2019-06-21 | 湖南林森建筑有限公司 | A kind of architectural engineering lift operation platform |
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| JPH08277079A (en) * | 1995-04-06 | 1996-10-22 | Etsuhara Yoshitada | Working elevator |
| CN206345658U (en) * | 2016-11-24 | 2017-07-21 | 宁波海迈克动力科技有限公司 | A kind of fall-preventing protection device of hoistable platform |
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| CN113719095A (en) * | 2021-09-11 | 2021-11-30 | 青岛康太源建设集团有限公司 | Climbing protection device for building |
| CN114920164A (en) * | 2022-05-13 | 2022-08-19 | 泰安鑫杰机械有限公司 | Transformer assembly jig with prevent function of falling |
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