CN114562098A - Civil engineering construction is with construction platform who has protector - Google Patents
Civil engineering construction is with construction platform who has protector Download PDFInfo
- Publication number
- CN114562098A CN114562098A CN202210024199.6A CN202210024199A CN114562098A CN 114562098 A CN114562098 A CN 114562098A CN 202210024199 A CN202210024199 A CN 202210024199A CN 114562098 A CN114562098 A CN 114562098A
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- Prior art keywords
- fixed
- slide rail
- sliding
- hanging
- slider
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- 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
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 230000001012 protector Effects 0.000 title claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 210000000080 chela (arthropods) Anatomy 0.000 claims 2
- 238000005457 optimization Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Images
Classifications
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/02—Scaffold feet, e.g. with arrangements for adjustment
-
- 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
- E04G5/14—Railings
-
- 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
- E04G5/14—Railings
- E04G5/144—Railings specific for the lateral, i.e. short side of a scaffold
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
- E04G2001/242—Scaffolds movable on wheels or tracks
-
- 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
- E04G2005/008—Hoisting devices specially adapted as part of a scaffold system
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to a construction platform with a protective device for civil construction, which comprises a lifter and a hanging basket driven by the lifter to move up and down, wherein the protective device is arranged on both sides of the top of the hanging basket; two protector all includes the slide rail with hanging flower basket fixed connection, activity joint on the slide rail and along the slide rail length direction first slider that slides the setting, fixed set up on first slider and with the couple matched with link of high altitude construction safety belt and connect the fixed extension mechanism between first slider and the hanging flower basket. According to the invention, the slide rail is arranged on the guardrail of the hanging basket, the movable slide block with the hanging ring matched with the safety belt hook is arranged on the slide rail, a worker can move the safety belt hook after hanging the safety belt hook on the hanging ring, and the hook can drag the first slide block to move on the slide rail, so that the moving range of the hook is effectively improved, the influence of the grid-shaped guardrail on the moving range of the worker is reduced, and the use effect is good.
Description
Technical Field
The invention belongs to the field of civil engineering construction equipment, and particularly relates to a construction platform with a protection device for civil engineering construction.
Background
Various scaffolds are used for construction operation at a high position in building construction, the scaffolds are divided into a fixed type and a movable type, and different scenes are suitable for different types of scaffolds; the fixed scaffold is difficult to move, needs to be repeatedly built and disassembled, and is suitable for continuous construction operation; the movable scaffold is suitable for construction operation which often needs to be moved, and is generally a movable lifting construction platform with adjustable height.
In the prior art, a movable lifting construction platform generally comprises a lifter and a hanging basket, workers can carry out overhead conveying operation by starting the lifter after entering the hanging basket, and the workers belong to overhead operation when working on the lifting platform and can ensure safety by wearing an overhead operation safety belt. During specific use, generally, the couple cover of safety belt is on lift platform's guardrail, but present lift construction platform, its guardrail is the grid form mostly, but couple cover back movable range is little on the guardrail, has seriously influenced workman's home range, when making the workman carry out more remote removal on the platform, need take off the couple and install again, and it is very inconvenient to use, and has great potential safety hazard.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a construction platform for civil engineering works, which has a guard device.
The invention realizes the purpose through the following technical scheme:
a construction platform with a protection device for civil construction comprises a lifter and a hanging basket driven by the lifter to move up and down, wherein the protection device is arranged on each of two sides of the top of the hanging basket;
two protector all includes the slide rail with hanging flower basket fixed connection, activity joint on the slide rail and along the slide rail length direction slip first slider that sets up, fixed set up on first slider and with the couple matched with link of high altitude construction safety belt and the fixed extension mechanism of connecting first slider and hanging flower basket, fixed extension mechanism is used for prolonging the movable distance behind the first slider break away from the slide rail and hinders to continue the tenesmus behind the first slider break away from the slide rail.
As a further optimization scheme of the invention, the hanging basket comprises an L-shaped platform, guardrails fixed on two sides of the L-shaped platform and a protective door arranged on the front side of the L-shaped platform, and slide rails of the two protective devices are respectively fixed on the tops of the two guardrails.
As a further optimized scheme of the invention, the fixed lengthening mechanism comprises a fixed block fixedly mounted on a slide rail close to one end of the elevator, a plurality of second slide blocks which have the same structure as the first slide blocks and are slidably arranged on the slide rail between the first slide blocks and the fixed block, and a steel wire rope connected between every two adjacent first slide blocks, second slide blocks and fixed blocks.
As a further optimization scheme of the invention, the section of the slide rail is arranged to be inverted trapezoid, the first slide block and the second slide block are both arranged to be pincer-shaped, and the jaw is matched with the slide rail.
As a further optimization scheme of the invention, the lifter comprises a base, casters arranged at the bottom of the base, a frame vertically fixed on one side of the top of the base, a reinforcing rod connecting the frame and the base, and a lifting mechanism arranged in the frame, wherein the hanging basket is driven by the lifting mechanism to move up and down.
As a further optimization scheme of the invention, the lifting mechanism comprises two screw rods which are arranged in the machine bodies on two sides of the rack side by side through bearings, a driving assembly for driving the two screw rods to rotate, and a screw rod sliding seat which is connected to the outer part of the screw rods in a threaded manner and penetrates through a sliding groove on the front side of the rack to be fixedly connected with the hanging basket.
As a further optimization scheme of the invention, the lifting mechanism further comprises a sliding rod and a sliding sleeve, wherein the sliding rod is arranged between the two screw rods side by side and is fixedly connected with the rack, and the sliding sleeve is movably sleeved outside the sliding rod and is fixedly connected with the hanging basket.
As a further optimization scheme of the invention, the driving assembly comprises two chain wheels fixedly connected with the screw rod, a chain connected with the two chain wheels and a speed reducing motor connected with one of the screw rods, and the speed reducing motor is fixed at the top of the rack.
The invention has the beneficial effects that:
1) according to the invention, the slide rail is arranged on the guardrail of the hanging basket, the movable slide block with the hanging ring matched with the safety belt hook is arranged on the slide rail, a worker can move the safety belt hook after hanging the safety belt hook on the hanging ring, and the hook can drag the first slide block to move on the slide rail, so that the moving range of the hook is effectively improved, the influence of the grid-shaped guardrail on the moving range of the worker is reduced, and the use effect is good;
2) according to the invention, the second sliding block and the fixed block are arranged on the sliding rail, and every two adjacent first sliding blocks, second sliding blocks and fixed blocks are fixedly connected through the steel wire rope, so that when a worker falls carelessly and the first sliding blocks are damaged and fall off from the sliding rail due to overlarge impact force, the second sliding blocks and the fixed blocks can still be connected through the steel wire rope, thus the worker is prevented from continuously falling down, the safety of the construction platform is greatly improved, and the movable range of the worker is also greatly improved.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of part a of fig. 1 according to the present invention.
Fig. 3 is a front view of the housing of the present invention.
Figure 4 is a front view of the basket of the present invention.
In the figure: 1. an elevator; 11. a base; 12. a caster wheel; 13. a frame; 14. a reinforcing bar; 15. a lifting mechanism; 151. a screw rod; 152. a lead screw slide seat; 153. a slide bar; 154. a sliding sleeve; 155. a sprocket; 156. a chain; 157. a reduction motor; 2. a hanging basket; 21. an L-shaped platform; 22. a guardrail; 23. a protective door; 3. a guard; 31. a slide rail; 32. a first slider; 33. hanging a ring; 34. a second slider; 35. a fixed block; 36. a steel cord.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.
Example 1
As shown in fig. 1-4, a construction platform with a protection device for civil engineering construction comprises a lifter 1 and a hanging basket 2 driven by the lifter 1 to move up and down, wherein the protection device 3 is arranged on both sides of the top of the hanging basket 2;
two protection devices 3 all include the slide rail 31 with hanging flower basket 2 fixed connection, the activity joint is in slide rail 31 and along the slide rail 31 length direction first slider 32 that sets up that slides, fixed set up on first slider 32 and with the couple matched with link 33 of high altitude construction safety belt, and connect the fixed extension mechanism of the movable distance of first slider 32 and hanging flower basket 2, fixed extension mechanism is used for prolonging the movable distance behind first slider 32 breaking away from slide rail 31 and hindering first slider 32 to break away from slide rail 31 and continue to weigh down.
The hanging basket 2 comprises an L-shaped platform 21, guardrails 22 fixed on two sides of the L-shaped platform 21 and a protective door 23 arranged on the front side of the L-shaped platform 21, and the sliding rails 31 of the two protective devices 3 are respectively fixed on the tops of the two guardrails 22.
The section of the slide rail 31 is designed to be inverted trapezoid, the first slide block 32 and the second slide block 34 are both designed to be pincerlike, and the jaw is matched with the slide rail 31.
The lifting machine 1 comprises a base 11, casters 12 arranged at the bottom of the base 11, a frame 13 vertically fixed at one side of the top of the base 11, a reinforcing rod 14 connecting the frame 13 and the base 11, and a lifting mechanism 15 arranged in the frame 13, wherein the hanging basket 2 is driven by the lifting mechanism 15 to move up and down; the lifting mechanism 15 comprises two screw rods 151 arranged in the machine bodies on two sides of the frame 13 side by side through bearings, a driving assembly for driving the two screw rods 151 to rotate, and a screw rod sliding seat 152 which is connected to the outer part of the screw rods 151 in a threaded manner and penetrates through a sliding groove on the front side of the frame 13 to be fixedly connected with the hanging basket 2; the lifting mechanism 15 further comprises a sliding rod 153 arranged between the two screw rods 151 in parallel and fixedly connected with the frame 13, and a sliding sleeve 154 movably sleeved outside the sliding rod 153 and fixedly connected with the hanging basket 2; the driving assembly comprises two chain wheels 155 fixedly connected with the screw rod 151, a chain 156 connected with the two chain wheels 155, and a speed reducing motor 157 connected with one of the screw rods 151, wherein the speed reducing motor 157 is fixed at the top of the frame 13.
When the construction platform is used, a worker opens the protective door 23 and enters the hanging basket 2 first, then hooks of safety belts are hung in the hanging rings 33 on the first sliding blocks 32, the elevator 1 is started, specifically, the speed reducing motor 157 is started to drive the two screw rods 151 to rotate through the chain wheels 155 and the chains 156, the screw rod sliding seat 152 is matched with the threads on the outer walls of the screw rods 151, the hanging basket 2 and the worker can be driven to move up and down to operate when the screw rods 151 rotate in the forward and reverse directions, and the arrangement of the sliding rods 153 and the sliding sleeves 154 can increase the supporting degree and stability of the hanging basket 2;
in the working process, the safety belt can drag the first sliding block 32 to move left and right through the hanging ring 33, the movable range of workers is effectively improved, the operable space is enlarged, and the using effect is good. In order to ensure the safety, a fixed lengthening mechanism can be arranged between the first sliding block 32 and the hanging basket 2, so that the danger when the first sliding block 32 is separated from the sliding rail 31 is avoided;
specifically, as shown in fig. 1-2, the fixed lengthening mechanism includes a fixed block 35 fixedly mounted on the slide rail 31 near one end of the elevator 1, a plurality of second sliders 34 having the same structure as the first sliders 32 and slidably disposed on the slide rail 31 between the first sliders 32 and the fixed block 35, and a steel wire rope 36 connected between every two adjacent first sliders 32, second sliders 34, and fixed blocks 35.
It should be noted that, when a worker works at high altitude, in order to increase the moving range of the worker again and expand the working range, according to the arrangement of the second slider 34, the fixed block 35 and the steel wire rope 36, when the worker moves, the hook on the safety belt can drive the hanging ring 33 and the first slider 32 to move on the slide rail 31, the first slider 32 can drive the second slider 34 to move on the slide rail 31 through the steel wire rope 36, when the worker accidentally falls, and the first slider 32 is damaged and falls off from the slide rail 31 due to overlarge impact force, the second slider 34 and the fixed block 35 can still connect the first slider 32 through the steel wire rope 36, so that the worker is prevented from continuing to fall, and the safety of the construction platform is greatly improved;
and when first slider 32 breaks away from the slide rail, can be dragged by second slider 34, second slider 34 at this moment receives the holding power of slide rail 31, can not derail easily, even derail, other second sliders 34 in addition, even a plurality of second sliders 34 are whole to break away from, and fixed block 35 and wire rope 36 drag the workman in addition, and the tenesmus dynamics is consumed gradually at this in-process, avoids the workman to fall the injury.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention.
Claims (8)
1. A construction platform with a protection device for civil construction comprises a lifter (1) and a hanging basket (2) driven by the lifter (1) to move up and down, and is characterized in that the protection device (3) is arranged on each of two sides of the top of the hanging basket (2);
two protector (3) all include with hanging flower basket (2) fixed connection's slide rail (31), activity joint in slide rail (31) on and along slide rail (31) length direction slip set up first slider (32), fixed set up on first slider (32) and with high altitude construction safety belt's couple matched with link (33) and connect first slider (32) and hanging flower basket (2) fixed extension mechanism, fixed extension mechanism is used for prolonging the movable distance behind first slider (32) break away from slide rail (31) and hinders first slider (32) and continue to weigh down after breaking away from slide rail (31).
2. The construction platform with protection device for civil engineering according to claim 1, characterized in that: the hanging basket (2) comprises an L-shaped platform (21), guardrails (22) fixed on two sides of the L-shaped platform (21) and a protective door (23) arranged on the front side of the L-shaped platform (21), and sliding rails (31) of the two protective devices (3) are fixed at the tops of the two guardrails (22) respectively.
3. The construction platform with protection device for civil engineering according to claim 1, characterized in that: the fixed lengthening mechanism comprises a fixed block (35) fixedly mounted on a sliding rail (31) close to one end of the elevator (1), a plurality of second sliding blocks (34) which are the same in structure as the first sliding blocks (32) and are arranged on the sliding rail (31) between the first sliding blocks (32) and the fixed block (35) in a sliding mode, and a steel wire rope (36) connected between every two adjacent first sliding blocks (32), the second sliding blocks (34) and the fixed block (35).
4. A construction platform with protection device for civil engineering according to claim 3, characterized in that: the section of the sliding rail (31) is in an inverted trapezoid shape, the first sliding block (32) and the second sliding block (34) are both in a pincer shape, and the jaw of the pincer shape is matched with the sliding rail (31).
5. The construction platform with protection device for civil engineering according to claim 1, characterized in that: the lifting machine (1) comprises a base (11), casters (12) arranged at the bottom of the base (11), a frame (13) vertically fixed on one side of the top of the base (11), a reinforcing rod (14) for connecting the frame (13) and the base (11), and a lifting mechanism (15) arranged in the frame (13), wherein the hanging basket (2) is driven by the lifting mechanism (15) to move up and down.
6. A construction platform with protection device for civil engineering according to claim 5, characterized in that: hoist mechanism (15) include through the bearing set up two lead screw (151) in frame (13) both sides organism side by side, drive two lead screw (151) pivoted drive assembly, threaded connection in lead screw (151) outside and run through frame (13) front side spout and hanging flower basket (2) fixed connection's lead screw slide (152).
7. The construction platform with protection device for civil engineering according to claim 6, characterized in that: the lifting mechanism (15) further comprises a sliding rod (153) which is arranged between the two screw rods (151) side by side and fixedly connected with the rack (13), and a sliding sleeve (154) which is movably sleeved outside the sliding rod (153) and fixedly connected with the hanging basket (2).
8. The construction platform with protection device for civil engineering according to claim 6, characterized in that: the driving assembly comprises two chain wheels (155) fixedly connected with the screw rods (151), a chain (156) connected with the two chain wheels (155) and a speed reducing motor (157) connected with one of the screw rods (151), and the speed reducing motor (157) is fixed to the top of the rack (13).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210024199.6A CN114562098A (en) | 2022-01-06 | 2022-01-06 | Civil engineering construction is with construction platform who has protector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210024199.6A CN114562098A (en) | 2022-01-06 | 2022-01-06 | Civil engineering construction is with construction platform who has protector |
Publications (1)
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CN114562098A true CN114562098A (en) | 2022-05-31 |
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ID=81712834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202210024199.6A Pending CN114562098A (en) | 2022-01-06 | 2022-01-06 | Civil engineering construction is with construction platform who has protector |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004008776A (en) * | 2002-06-11 | 2004-01-15 | Komiyama Doboku:Kk | Exclusive suspension tool for fall prevention equipment |
JP2011188925A (en) * | 2010-03-12 | 2011-09-29 | Chugoku Electric Power Co Inc:The | Fall preventing aid |
CN211647422U (en) * | 2020-01-19 | 2020-10-09 | 张景程 | Building construction safety device |
CN212317438U (en) * | 2020-04-21 | 2021-01-08 | 余琪 | Hydraulic engineering construction is with auxiliary assembly that ascends a height |
CN213087398U (en) * | 2020-06-15 | 2021-04-30 | 王远程 | Anti-falling device for steel structure engineering construction |
CN214498331U (en) * | 2020-12-30 | 2021-10-26 | 深圳市中天宏机电设备有限公司 | Rail type hanging basket |
-
2022
- 2022-01-06 CN CN202210024199.6A patent/CN114562098A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004008776A (en) * | 2002-06-11 | 2004-01-15 | Komiyama Doboku:Kk | Exclusive suspension tool for fall prevention equipment |
JP2011188925A (en) * | 2010-03-12 | 2011-09-29 | Chugoku Electric Power Co Inc:The | Fall preventing aid |
CN211647422U (en) * | 2020-01-19 | 2020-10-09 | 张景程 | Building construction safety device |
CN212317438U (en) * | 2020-04-21 | 2021-01-08 | 余琪 | Hydraulic engineering construction is with auxiliary assembly that ascends a height |
CN213087398U (en) * | 2020-06-15 | 2021-04-30 | 王远程 | Anti-falling device for steel structure engineering construction |
CN214498331U (en) * | 2020-12-30 | 2021-10-26 | 深圳市中天宏机电设备有限公司 | Rail type hanging basket |
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Application publication date: 20220531 |
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