CN113738140A - Structure outer frame faces limit protection system - Google Patents
Structure outer frame faces limit protection system Download PDFInfo
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- CN113738140A CN113738140A CN202110997704.0A CN202110997704A CN113738140A CN 113738140 A CN113738140 A CN 113738140A CN 202110997704 A CN202110997704 A CN 202110997704A CN 113738140 A CN113738140 A CN 113738140A
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- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3219—Means supported by the building wall, e.g. security consoles
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to the technical field of edge protection, in particular to an edge protection system with a structural outer frame, which comprises: the movable protection mechanism comprises an unreeling structure, the unreeling structure is connected with a buffering alarm structure through a flexible protection belt, and the buffering alarm structure comprises a buffering structure; the fixing frame is fixedly connected with the movable protection mechanism, the number of the fixing frames is two, one fixing frame is fixedly connected with the first cylinder shell, the other fixing frame is fixedly connected with the unreeling structure, and a plurality of groups of positioning screw holes are formed in the fixing frame. The alarm device can continuously give an alarm to the personnel who press the flexible protective belt to be in danger, and the safety factor of the alarm device is improved.
Description
Technical Field
The invention relates to the technical field of edge protection, in particular to an edge protection system with a structural outer frame.
Background
The traditional limb safety barrier is mostly finished by steel pipes and other fasteners, and has the defects of large use amount, high cost, large loss, rough process and low safety, and is difficult to meet various requirements of safety protection. The general frontier defense utilizes the screw hole on the wall body or the frame to fix a position fixedly.
The flexible edge protection has certain flexibility simultaneously because of easy and simple to handle, and all used accessories all can make in advance and prepare moreover, practice thrift the time limit for a project greatly, simultaneously in the aspect of the installation is set up to the manual work, because of the installation rate accelerates, can practice thrift the cost greatly. In-process that the limit protection was faced in the in-process to the in-service use, because the flexible is faced the limit protection and is produced oppression sense when extrudeing the human body and is softer for personnel oppress and face the limit protection and not know by oneself, have reduced the factor of safety that the limit protection was faced safely.
Therefore, the person skilled in the art proposes a structural outer frame edge protection system to solve the problems mentioned in the background above.
Disclosure of Invention
The invention aims to provide a protective system for the adjacent edge of a structural outer frame, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a structural surround edge protection system comprising:
the movable protection mechanism comprises an unreeling structure, the unreeling structure is connected with a buffering alarm structure through a flexible protection belt, the buffering alarm structure comprises a buffering structure, the buffering structure comprises a first drum shell, the first drum shell is rotatably connected with a first rotating shaft, one end of the first rotating shaft is fixedly connected with a rotating plate, one end of the rotating plate is fixedly connected with the flexible protection belt, the other end of the rotating plate is connected with a fixing plate fixedly connected with the drum wall of the first drum shell through a first spring, the first rotating shaft is connected with an alarm module through a transmission structure, the alarm module comprises a box body fixedly connected with the transmission structure, a battery power supply module is fixedly mounted on one side of the box body, a first conductive column and a second conductive column are arranged in the box body, and the first conductive column is electrically connected with the battery power supply module, the second conductive column is electrically connected with an alarm arranged outside the box body, a toggle switch mechanism connected with the transmission structure is arranged in the box body, and when the first rotating shaft drives the toggle switch mechanism to simultaneously contact the first conductive column and the second conductive column through the transmission structure, the battery power supply module supplies power to the alarm;
the fixing frame is fixedly connected with the movable protection mechanism, the number of the fixing frames is two, one fixing frame is fixedly connected with the first cylinder shell, the other fixing frame is fixedly connected with the unreeling structure, and a plurality of groups of positioning screw holes are formed in the fixing frame.
As a further improvement of the invention: the unreeling structure comprises a second drum shell fixedly connected with a group of fixing frames, an unreeling wheel fixedly connected with a flexible protective belt is arranged in the second drum shell, the unreeling wheel is connected with a movable braking structure arranged at one end of the second drum shell through a second rotating shaft, and the second rotating shaft is rotatably connected with the second drum shell.
As a further improvement of the invention: the movable brake structure comprises a shell fixedly connected with the outer wall of the second barrel shell, a ratchet disc fixedly connected with a second rotating shaft is arranged in the shell, the ratchet disc is rotatably connected with the shell, a ratchet groove of the ratchet disc is movably connected with an insert block, the insert block is connected with a first trapezoid block through a fixing rod fixedly, a second spring is sleeved outside the fixing rod, one end of the second spring is fixedly connected with the first trapezoid block, the other end of the second spring is fixedly connected with the shell, the first trapezoid block is slidably connected with the shell, a second trapezoid block is slidably connected with the first trapezoid block, and sliding blocks slidably connected with the shell are arranged on two sides of the second trapezoid block.
As a further improvement of the invention: and one end of the second rotating shaft extending out of the shell is provided with a polygonal groove, and the polygonal groove is movably connected with a handle.
As a further improvement of the invention: the flexible protective belt comprises steel wire ropes and a safe dense mesh net arranged between the steel wire ropes, the safe dense mesh net is fixedly connected with the steel wire ropes, one ends of the steel wire ropes are fixedly connected with the rotating plate, and the other ends of the steel wire ropes are fixedly connected with the unwinding wheel.
As a further improvement of the invention: the transmission structure comprises a transmission case fixedly connected with the first barrel shell, a first gear fixedly connected with the first rotating shaft is arranged in the transmission case, the first gear is connected with a second gear in a meshed mode, the reference circle diameter of the second gear is smaller than that of the first gear, and the second gear is connected with the toggle switch mechanism through a third rotating shaft.
As a further improvement of the invention: the toggle switch mechanism comprises a conductive frame fixedly connected with a third rotating shaft, one end of the conductive frame is rotatably connected with a sliding seat, the sliding seat is connected with an articulated frame through a third spring, the articulated frame is rotatably connected with the box body, and a guide rod which is slidably connected with the sliding seat is fixedly arranged in the middle of the articulated frame.
Compared with the prior art, the invention has the beneficial effects that:
the fixing frame is connected with a threaded hole of a frame or a threaded hole formed in a wall body by using a bolt, the unreeling structure is fixed firstly, the flexible protection belt is unfolded, the buffering alarm structure is fixed, when a person presses the flexible protection belt, the rotating plate is pulled to rotate, the first spring is extruded, the first rotating shaft is driven by the rotating plate 1313 to rotate, the first rotating shaft drives the toggle switch mechanism through the transmission structure, the toggle switch mechanism conducts the first conductive column and the second conductive column, the battery power supply module supplies power to the alarm, the alarm buzzes and warns danger, the person pressing the flexible protection belt is forced to separate from the flexible protection belt by self, after the person separates from the flexible protection belt, the rotating plate drives the flexible protection belt to reset under the support of the elastic force of the compressed first spring, the toggle switch mechanism synchronously resets under the drive of the first rotating shaft, and the alarm is powered off, the alarm device can continuously give an alarm to the personnel who press the flexible protective belt to be in danger, and the safety factor of the alarm device is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a buffer structure according to the present invention;
FIG. 3 is a schematic structural diagram of a transmission structure of the present invention;
FIG. 4 is a schematic diagram of the internal structure of the alarm module of the present invention;
FIG. 5 is a schematic perspective view of the active braking structure of the present invention;
FIG. 6 is a schematic view of the handle of the present invention;
fig. 7 is a schematic structural diagram of an unwinding structure of the present invention.
In the figure: 1. a movable protection mechanism; 11. an unwinding structure; 111. a second cartridge; 112. unwinding wheels; 113. a second rotating shaft; 1131. a polygonal groove; 114. a movable braking structure; 1141. a housing; 1142. a ratchet plate; 1143. inserting a block; 1144. fixing the rod; 1145. a first trapezoidal block; 1146. a second spring; 1147. a second trapezoidal block; 1148. a slider; 12. a flexible protective band; 121. a wire rope; 122. a safe dense mesh network; 13. a buffer alarm structure; 131. a buffer structure; 1311. a first cartridge; 1312. a first rotating shaft; 1313. a rotating plate; 1315. a first spring; 1316. a fixing plate; 132. a transmission structure; 1321. a transmission case; 1322. a first gear; 1323. a second gear; 1324. a third rotating shaft; 133. an alarm module; 1331. a box body; 1332. a battery power supply module; 1333. a first conductive post; 1334. a second conductive post; 1335. an alarm; 1336. a toggle switch mechanism; 13361. a conductive frame; 13362. a sliding seat; 13363. a third spring; 13364. a hinged frame; 1337. an elastic column; 2. a fixed mount; 3. a handle; 4. a frame body structure.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
In one embodiment, referring to fig. 1-7, a structural surround edge protection system comprises:
the movable protection mechanism 1 includes an unwinding structure 11, the unwinding structure 11 is connected to a buffering alarm structure 13 through a flexible protection belt 12, the buffering alarm structure 13 includes a buffering structure 131, the buffering structure 131 includes a first barrel casing 1311, the first barrel casing 1311 is rotatably connected to a first rotating shaft 1312, one end of the first rotating shaft 1312 is fixedly connected to a rotating plate 1313, one end of the rotating plate 1313 is fixedly connected to the flexible protection belt 12, the other end of the rotating plate 1313 is connected to a fixing plate 1316 fixedly connected to a barrel wall of the first barrel casing 1311 through a first spring 1315, the first rotating shaft 1312 is connected to an alarm module 133 through a transmission structure 132, the alarm module 133 includes a box 1331 fixedly connected to the transmission structure 132, a battery power supply module 2 is fixedly mounted on one side of the box 1331, a first conductive pillar 1333 and a second conductive pillar 1334 are disposed in the box 1331, the first conductive column 1333 is electrically connected with the battery power supply module 1332, the second conductive column 1334 is electrically connected with an alarm 1335 arranged outside the box 1331, a toggle switch mechanism 1336 connected with the transmission structure 132 is arranged in the box 1331, and when the first rotating shaft 1312 drives the toggle switch mechanism 1336 through the transmission structure 132 to simultaneously contact the first conductive column 1333 and the second conductive column 1334, the battery power supply module 1332 supplies power to the alarm 1335;
the fixing frame 2, fixing frame 2 and activity protection machanism 1 fixed connection, 2 quantity of fixing frame are two sets of, and wherein a set of fixing frame 2 and first bobbin casing 1311 fixed connection, another group's fixing frame 2 and unreel structure 11 fixed connection, the multiunit location screw has all been seted up on the fixing frame 2.
The fixed frame 2 is connected with a threaded hole of a frame or a threaded hole formed in a wall body by using bolts, the unreeling structure 11 is fixed firstly, the flexible protection belt 12 is unfolded, the buffering alarm structure 13 is fixed, when a person presses the flexible protection belt 12, the rotating plate 1313 is pulled to rotate, the first spring 1315 is extruded, the first rotating shaft 1312 rotates under the driving of the rotating plate 1313, the first rotating shaft 1312 drives the toggle switch mechanism 1336 through the transmission structure 132, the toggle switch mechanism 1336 conducts the first conductive column 1333 and the second conductive column 1334, the battery power supply module 1332 supplies power to the alarm 1335, the alarm 1335 buzzes to warn danger, the person pressing the flexible protection belt 12 is forced to separate from the flexible protection belt 12, after the person separates from the flexible protection belt 12, the rotating plate 1313 drives the flexible protection belt 12 to reset under the supporting of the elastic force of the compressed first spring 1315, and under the driving of the first rotating shaft 1312, the toggle switch mechanism 1336 is reset synchronously, the alarm 1335 is powered off, and the alarm device can continuously give an alarm to the personnel who press the flexible protective belt 12 and are in danger, so that the safety factor of the alarm device is improved.
In one aspect of this embodiment, the unwinding structure 11 includes a second drum 111 fixedly connected to a set of fixing frames 2, an unwinding wheel 112 fixedly connected to the flexible protection belt 12 is disposed in the second drum 111, the unwinding wheel 112 is connected to a movable braking structure 114 disposed at one end of the second drum 111 through a second rotating shaft 113, and the second rotating shaft 113 is rotatably connected to the second drum 111. The movable braking structure 114 is used to limit the second rotation axis 113 so that the unwinding wheel 112 tightens the flexible guard band 12.
In one aspect of this embodiment, the movable catch structure 114 includes a housing 1141 fixedly connected to the outer wall of the second cartridge 111, a ratchet disc 1142 fixedly connected with the second rotating shaft 113 is arranged in the housing 1141, the ratchet disc 1142 is rotatably connected with the housing 1141, the ratchet groove of the ratchet disc 1142 is movably connected with the insert block 1143, the insert block 1143 is fixedly connected with a first trapezoid block 1145 by a fixing rod 1144, a second spring 1146 is sleeved outside the fixing rod 1144, one end of the second spring 1146 is fixedly connected with the first trapezoid block 1145, the other end of the second spring 1146 is fixedly connected with the housing 1141, the first trapezoid block 1145 is slidably connected with the housing 1141, the first trapezoid block 1145 is slidably connected with the second trapezoid block 1147, the two sides of the second trapezoid block 1147 are provided with sliding blocks 1148 slidably connected with the housing 1141, the path of the first trapezoid 1145 is staggered and perpendicular to the path of the second trapezoid 1147. When the second rotating shaft 113 is about to rotate along with the unwinding wheel 112, due to the extrusion of the second trapezoid 1147, the first trapezoid 1145 drives the plug 1143 to cooperate with the ratchet disc 1142 through the fixing rod 1144, so that the ratchet disc 1142 cannot be driven to rotate under the condition that the unwinding wheel 112 is pulled by the flexible protection belt 12, when the unwinding wheel 112 needs to be rotated, the second trapezoid 1147 is slid, so that the first trapezoid 1145 and the second trapezoid 1147 are separated from each other, at this time, the second spring 1146 pushes out the first trapezoid 1145, and the ratchet disc 1142 can rotate freely.
In one aspect of this embodiment, a polygonal groove 1131 is opened at one end of the second rotating shaft 113 extending out of the housing 1141, and the handle 3 is movably connected to the polygonal groove 1131. The handle 3 is matched with the polygonal groove 1131 to rapidly drive the second rotating shaft 113 to drive the unwinding wheel 112 to rotate.
In one aspect of this embodiment, the flexible protection belt 12 includes steel cables 121 and a safety screen 122 disposed between the steel cables 121, the safety screen 122 is fixedly connected to the steel cables 121, one end of each steel cable 121 is fixedly connected to the rotating plate 1313, and the other end of each steel cable 121 is fixedly connected to the unwinding wheel 112. The wire rope 121 provides support for the secure privacy screen 122.
In one aspect of this embodiment, the flexible guard band 12 is also provided with multiple sets of frame structures 4 on one side. The frame structure 4 serves to provide further support to the flexible guard band 12.
In one aspect of the present embodiment, the transmission structure 132 includes a transmission case 1321 fixedly connected to the first casing 1311, a first gear 1322 fixedly connected to the first rotation shaft 1312 is disposed in the transmission case 1321, the first gear 1322 is engaged with a second gear 1323, a pitch circle diameter of the second gear 1323 is smaller than a pitch circle diameter of the first gear 1322, and the second gear 1323 is connected to the toggle switch mechanism 1336 through a third rotation shaft 1324. Since the pitch circle diameter of the second gear 1323 is smaller than the pitch circle diameter of the first gear 1322, the rotation angle of the third rotating shaft 1324 is larger than the rotation angle of the first rotating shaft 1312, amplification of rotation of the first rotating shaft 1312 is achieved, and thus the sensitivity of the present invention is improved.
In one aspect of the present embodiment, the toggle switch mechanism 1336 includes a conductive frame 13361 fixedly connected to the third rotating shaft 1324, a sliding seat 13362 is rotatably connected to one end of the conductive frame 13361, a hinge frame 13364 is connected to the sliding seat 13362 through a third spring 13363, the hinge frame 13364 is rotatably connected to a shaft-like portion extending inward of the box 1331, and a guide bar slidably connected to the sliding seat 13362 is fixedly installed at the middle of the hinge frame 13364. The conductive frame 13361 is used to connect the first conductive pillar 1333 and the second conductive pillar 1334, and when the conductive frame 13361 drives the sliding seat 13362 to move, the third spring 13363 accelerates the rotation of the conductive frame 13361.
In one aspect of this embodiment, an elastic column 1337 is also fixedly mounted within the box 1331. The elastic columns 1337 limit the rotation of the conductive racks 13361.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A structure frame faces limit protection system which characterized in that includes:
the movable protection mechanism comprises an unreeling structure, the unreeling structure is connected with a buffering alarm structure through a flexible protection belt, the buffering alarm structure comprises a buffering structure, the buffering structure comprises a first drum shell, the first drum shell is rotatably connected with a first rotating shaft, one end of the first rotating shaft is fixedly connected with a rotating plate, one end of the rotating plate is fixedly connected with the flexible protection belt, the other end of the rotating plate is connected with a fixing plate fixedly connected with the drum wall of the first drum shell through a first spring, the first rotating shaft is connected with an alarm module through a transmission structure, the alarm module comprises a box body fixedly connected with the transmission structure, a battery power supply module is fixedly mounted on one side of the box body, a first conductive column and a second conductive column are arranged in the box body, and the first conductive column is electrically connected with the battery power supply module, the second conductive column is electrically connected with an alarm arranged outside the box body, a toggle switch mechanism connected with the transmission structure is arranged in the box body, and when the first rotating shaft drives the toggle switch mechanism to simultaneously contact the first conductive column and the second conductive column through the transmission structure, the battery power supply module supplies power to the alarm;
the fixing frame is fixedly connected with the movable protection mechanism, the number of the fixing frames is two, one fixing frame is fixedly connected with the first cylinder shell, the other fixing frame is fixedly connected with the unreeling structure, and a plurality of groups of positioning screw holes are formed in the fixing frame.
2. The system of claim 1, wherein the unwinding structure comprises a second drum fixedly connected to a set of fixed frames, an unwinding wheel fixedly connected to the flexible protective belt is disposed in the second drum, the unwinding wheel is connected to a movable braking structure disposed at one end of the second drum through a second rotating shaft, and the second rotating shaft is rotatably connected to the second drum.
3. The structural outer frame limb protection system according to claim 2, wherein the movable brake structure comprises a housing fixedly connected with the outer wall of the second cylinder housing, a ratchet disc fixedly connected with the second rotating shaft is arranged in the housing, the ratchet disc is rotatably connected with the housing, an insert block is movably connected to a ratchet groove of the ratchet disc, the insert block is fixedly connected with a first trapezoid block through a fixing rod, a second spring is sleeved outside the fixing rod, one end of the second spring is fixedly connected with the first trapezoid block, the other end of the second spring is fixedly connected with the housing, the first trapezoid block is slidably connected with a second trapezoid block, and sliding blocks slidably connected with the housing are arranged on two sides of the second trapezoid block.
4. The system of claim 3, wherein the second rotating shaft has a polygonal slot at an end extending outside the housing, and the polygonal slot is movably connected to a handle.
5. The system as claimed in claim 2, wherein the flexible protective belt comprises steel cables and a safety dense mesh net arranged between the steel cables, the safety dense mesh net is fixedly connected with the steel cables, one end of each steel cable is fixedly connected with the rotating plate, and the other end of each steel cable is fixedly connected with the unwinding wheel.
6. A structural surround protective system according to claim 1 wherein said drive structure includes a drive housing fixedly attached to said first cylindrical shell, said drive housing having a first gear fixedly attached to said first rotatable shaft, said first gear having a second gear meshingly attached thereto, said second gear having a pitch circle diameter less than a pitch circle diameter of said first gear, said second gear being connected to said toggle switch mechanism via a third rotatable shaft.
7. A structural outer frame limb protective system as claimed in claim 6, wherein the toggle switch mechanism comprises a conductive frame fixedly connected with a third rotating shaft, one end of the conductive frame is rotatably connected with a sliding seat, the sliding seat is connected with a hinge frame through a third spring, the hinge frame is rotatably connected with the box body, and a guide rod slidably connected with the sliding seat is fixedly arranged in the middle of the hinge frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997704.0A CN113738140A (en) | 2021-08-27 | 2021-08-27 | Structure outer frame faces limit protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997704.0A CN113738140A (en) | 2021-08-27 | 2021-08-27 | Structure outer frame faces limit protection system |
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| Publication Number | Publication Date |
|---|---|
| CN113738140A true CN113738140A (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110997704.0A Pending CN113738140A (en) | 2021-08-27 | 2021-08-27 | Structure outer frame faces limit protection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN113738140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115478703A (en) * | 2022-10-17 | 2022-12-16 | 四川大学 | Method for preventing frost heaving cracking of concrete hole |
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| CN213573385U (en) * | 2020-10-29 | 2021-06-29 | 徐州工程学院 | Rail guard for building engineering |
| CN113102606A (en) * | 2021-04-21 | 2021-07-13 | 吴冬冬 | Road railing positioning and punching equipment based on gear transmission principle |
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| CN109826454A (en) * | 2017-11-23 | 2019-05-31 | 科润智能科技股份有限公司 | A kind of protective net for building with warning device |
| CN210217330U (en) * | 2019-04-12 | 2020-03-31 | 国网宁夏电力有限公司永宁县供电公司 | Rail guard for electric power construction |
| CN211142858U (en) * | 2019-10-31 | 2020-07-31 | 广德众成市政工程有限公司 | A interim side slope protector for municipal building |
| CN211646151U (en) * | 2019-12-31 | 2020-10-09 | 四川中亮建设管理有限公司 | Municipal works median |
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| CN115478703B (en) * | 2022-10-17 | 2024-05-10 | 四川大学 | Method for preventing frost heaving and cracking of concrete holes |
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