CN114751276B - Safe anti-falling device for building construction - Google Patents
Safe anti-falling device for building construction Download PDFInfo
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- CN114751276B CN114751276B CN202210420630.9A CN202210420630A CN114751276B CN 114751276 B CN114751276 B CN 114751276B CN 202210420630 A CN202210420630 A CN 202210420630A CN 114751276 B CN114751276 B CN 114751276B
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- falling
- supporting
- counterweight
- block
- buffer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The invention relates to a safe anti-falling device for building construction, which comprises a wall-attached support, a supporting framework, an anti-falling clamping block, a material conveying carriage, an anti-falling assembly and a counterweight buffer block, wherein the supporting framework comprises four supporting upright posts with U-shaped horizontal sections, and the anti-falling clamping block is arranged in a U-shaped groove of each supporting upright post; the counterweight buffer assembly comprises a counterweight buffer block and a counterweight buffer pulley, two ends of the counterweight buffer block are movably assembled on the supporting framework along the up-down direction, the counterweight buffer pulley is arranged on the supporting framework, the top of the counterweight buffer block is connected with a buffer steel wire rope, and the buffer steel wire rope bypasses the counterweight buffer pulley and is connected with a buffer plate of the material conveying carriage; the anti-falling assembly comprises a lifting pulley, a guide sleeve, an anti-falling inserting rod, a baffle, an anti-falling spring and an anti-falling rope, wherein the anti-falling inserting rod is used for being inserted into a corresponding anti-falling clamping groove and is in blocking fit with a corresponding anti-falling clamping block in the up-down direction. The invention can reduce the risk of the material conveying box falling to the ground directly in the accident.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a safe anti-falling device for building construction.
Background
At present, due to the relatively high building of floors, building materials (such as sandy soil, concrete, etc.) on the ground need to be transported to the higher floors by building material lifting devices. The existing building material lifting device adopts a vertical hoisting mode and comprises a lifting motor, a rope roller and a fixed pulley, wherein the lifting motor is fixedly connected with the rope roller in a coaxial mode, a pull rope is wound on the rope roller, the pull rope spans over the fixed pulley, and a material conveying carriage is connected to one end, far away from the rope roller, of the pull rope. The rope roller is driven to rotate through the lifting motor, the rope roller winds the pull rope, the pull rope is gradually shortened, and the pull rope lifts the material conveying carriage upwards, so that automatic lifting of building materials is realized, manual lifting is not needed, and the operation is relatively labor-saving and simpler. Of course, the carriage is large enough, and sometimes the constructor stands in the carriage and is transported to the corresponding floor together.
However, since the lifting motor is usually located at an overhead working, the environment is severe, and if the lifting motor is powered off or a rope connected with the material conveying carriage breaks during the lifting process of the material conveying carriage, the material conveying carriage can rapidly drop down to the ground under the action of gravity, so that a great potential safety hazard exists.
Disclosure of Invention
In view of the above, the invention aims to provide a safe anti-falling device for building construction, which solves the technical problem that in the prior art, when a lifting motor is powered off or a rope connected with a material conveying box is broken in the lifting process, the material conveying box is easy to directly fall to the ground to generate a safety accident.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a safe anti-falling device for building construction, comprising:
the wall-attached supports are arranged in a plurality of pairs at intervals along the up-down direction, and two wall-attached supports in each pair are all used for being fixed on the outer side of the shear wall in the corresponding layer;
the supporting framework comprises a base, four supporting columns, a top seat and reinforcing inclined columns, wherein the base is fixed on the ground, the four supporting columns are welded on the base and are in rectangular distribution, the top seat is welded at the top of the four supporting columns, the reinforcing inclined columns are welded between the two corresponding supporting columns, the horizontal section of each supporting column is U-shaped, the supporting framework comprises a fixed column section, an outer guide plate section and an inner guide plate section, the outer guide plate section is connected to the front side and the rear side of the fixed column section, the width of the outer guide plate section in the left-right direction is larger than that of the inner guide plate section in the left-right direction, a material conveying channel extending along the up-down direction is formed between the four supporting columns, and the two supporting columns close to the shear wall are connected with corresponding wall attaching supports;
the anti-falling clamping blocks are arranged in the U-shaped grooves of the supporting upright posts, a plurality of anti-falling clamping grooves are formed between two adjacent anti-falling clamping blocks in the vertical direction at intervals;
the material transporting carriage comprises a bottom plate, anti-falling plates connected to the front side and the rear side of the bottom plate and buffer plates connected to the left side and the right side of the bottom plate, and inverted U-shaped lifting blocks are fixed on the anti-falling plates;
the anti-falling assembly is provided with two groups on each anti-falling plate, each group comprises a lifting pulley, a guide sleeve, an anti-falling inserting rod, a baffle plate, an anti-falling spring and an anti-falling rope, the lifting pulley is positioned between the lifting block and the anti-falling plate and is fixed on the anti-falling plate, the anti-falling inserting rod coaxially penetrates through the guide sleeve and the lifting block, the baffle plate is connected to the end part of the anti-falling inserting rod, and the anti-falling inserting rod is used for being inserted into a corresponding anti-falling clamping groove and is in blocking fit with the corresponding anti-falling clamping block in the up-down direction; the anti-falling spring is sleeved outside the anti-falling inserted link, one end of the anti-falling spring is fixedly connected with the baffle, and the other end of the anti-falling spring is fixedly connected with the guide sleeve; one end of the anti-falling rope bypasses the lifting pulley and is connected with the end part of the anti-falling inserting rod, the other end of the anti-falling rope is connected with a stop block, the top of the stop block is connected with a lifting steel wire rope, and the lifting steel wire rope penetrates through the lifting block and is connected with the lifting driving mechanism, and the stop block is in stop fit with the lifting block when the material conveying carriage moves upwards;
the counterweight buffering assembly comprises a counterweight buffering block and a counterweight buffering pulley, wherein two ends of the counterweight buffering block are movably assembled on two corresponding supporting columns along the up-down direction, the counterweight buffering pulley is installed on a supporting framework, the top of the counterweight buffering block is connected with a buffering steel wire rope, and the buffering steel wire rope bypasses the corresponding counterweight buffering pulley and is connected with a buffering plate of a material conveying carriage.
The beneficial effects of the technical scheme are as follows: in the lifting process of the material transporting carriage, if the power is cut off or the rope connected with the material transporting carriage breaks, the material transporting carriage falls under the action of gravity, but at the moment, under the action of the counterweight buffer block, the falling speed of the material transporting carriage is reduced, meanwhile, the falling prevention inserting rod is not pulled by the lifting action of the lifting steel wire rope, is stretched into the falling prevention clamping groove by the elastic force of the falling prevention spring, and is blocked and matched with the falling prevention clamping block in the up-down direction until the material transporting carriage falls to a certain distance, so that the material transporting carriage is blocked at the current position to prevent the falling of the material transporting carriage, the material transporting carriage is effectively prevented from directly falling to the ground, and the safety of the material transporting carriage during material transporting is ensured.
Further, the counterweight buffer blocks and the counterweight buffer pulleys are both arranged at two sides of the material conveying carriage, and the two counterweight buffer blocks are connected with the corresponding buffer plates by bypassing the corresponding counterweight buffer pulleys through the buffer steel wire ropes.
The beneficial effects are that: the falling speed of the material conveying carriage can be further reduced, so that the falling prevention inserting rod can be timely clamped into the falling prevention clamping groove, and the material conveying carriage is prevented from continuously falling.
Further, the weight of the counterweight buffer is less than the weight of the carriage and greater than half the weight of the carriage.
The beneficial effects are that: the buffer effect of the counterweight buffer block on the lowering of the falling speed of the material conveying carriage is ensured.
Further, the front end and the rear end of the buffer plate are in guiding sliding fit with the outer guide plate sections of the corresponding support columns in the up-down direction.
The beneficial effects are that: the material conveying carriage can be vertically lifted or lowered, and collision between the material conveying carriage and the supporting framework due to deviation is avoided.
Further, the L-shaped anti-falling support rod is assembled on the bottom plate in a moving mode along the left-right direction, the L-shaped anti-falling support rod comprises a support rod section extending along the left-right direction and a guide rod section extending along the up-down direction, two fixing rings are arranged at the bottom of the bottom plate at intervals, the support rod section coaxially penetrates through the two fixing rings, a support spring is coaxially sleeved on the portion, located between the two fixing rings, of the support rod section, the top of the guide rod section extends out of the top of the bottom plate, the end portion of the support rod section is provided with a pushed cambered surface matched with the anti-falling clamping block, and the support rod section stretches into a corresponding anti-falling clamping groove when the support spring is in a natural state.
The beneficial effects are that: the L-shaped anti-falling support rod is inserted into the corresponding anti-falling clamping groove under the action of the support spring in the lifting process of the material conveying carriage for most of the time, and can be firstly matched with the anti-falling clamping block in a blocking way when the material conveying carriage drops down, so that the material conveying carriage is prevented from falling to the ground.
Further, the L-shaped anti-falling support rods are provided with four support columns which are respectively and correspondingly arranged with the four support columns.
The beneficial effects are that: four anti-falling supporting points can be formed, and the safety of the material conveying carriage is ensured.
Further, the anti-falling clamping block is provided with a pushing cambered surface matched with the pushed cambered surface.
The beneficial effects are that: in the process of lifting the material conveying carriage, the L-shaped anti-falling supporting rod can be easily pushed by the anti-falling clamping block, and the L-shaped anti-falling supporting rod and the anti-falling clamping block are not easy to generate blocking interference in the up-down direction.
Drawings
FIG. 1 is a schematic diagram of a construction of a safety fall protection device for use in building construction of the present invention;
FIG. 2 is a schematic diagram of the assembly between a carriage and a support framework and between anti-falling components in the safety anti-falling device for building construction of the invention;
FIG. 3 is an assembled schematic view of the safety anti-fall device for building construction of the present invention between the material carriage and the anti-fall assembly;
FIG. 4 is a schematic diagram of the connection between the carriage and the counterweight buffer assembly in the safety anti-fall device for building construction of the invention;
fig. 5 is a schematic structural view of a support column in the safety anti-falling device for building construction of the present invention.
Reference numerals: the device comprises a 1-wall-attached support, a 2-base, a 3-supporting upright post, a 4-reinforcing inclined post, a 5-top seat, a 6-fixed post section, a 7-outer guide plate section, an 8-inner guide plate section, a 9-material conveying carriage, a 10-bottom plate, an 11-falling prevention plate, a 12-buffer plate, a 13-counterweight buffer block, a 14-counterweight buffer pulley, a 15-falling prevention clamping block, a 16-falling prevention clamping groove, a 17-lifting pulley, a 18-guide sleeve, a 19-baffle plate, a 20-falling prevention inserting rod, a 21-falling prevention spring, a 22-falling prevention rope, a 23-blocking block, a 24-lifting block, a 25-lifting winch, a 26-lifting steel wire rope, a 27-L-shaped falling prevention supporting rod, a 28-fixed ring, a 29-supporting spring and a 30-buffering steel wire rope.
Detailed Description
The invention is described in further detail below with reference to the drawings and detailed description.
The embodiment of the safe anti-falling device for building construction comprises:
as shown in fig. 1 to 5, the safety anti-falling device for building construction comprises a wall-attached support, a supporting framework, an anti-falling clamping block, a material conveying carriage, an anti-falling assembly and a counterweight buffer block.
Specifically, as shown in fig. 1, a plurality of pairs of wall-attached supports 1 are arranged at intervals along the up-down direction, two wall-attached supports 1 in each pair are both used for being fixed on the outer side of the shear wall of the corresponding layer, and the wall-attached supports 1 are connected with a supporting framework.
The support framework comprises a base 2, support upright posts 3, a top seat 5 and reinforcing inclined posts 4, wherein the base 2 is fixed on the ground, and the four support upright posts 3 are welded on the base 2 in rectangular distribution; the top seat 5 is welded at the top of the four supporting columns 3, the reinforcing inclined columns 4 are provided with a plurality of reinforcing inclined columns, and the reinforcing inclined columns are alternately welded between the two corresponding supporting columns 3 in the up-down direction. The other end of the wall-attached support 1 is connected with two support columns 3 positioned on the left side on the support framework.
As shown in fig. 5, the horizontal section of the support column 3 is U-shaped, and comprises a fixed column section 6, and an outer guide plate section 7 and an inner guide plate section 8 connected to the front side and the rear side of the fixed column section 6, wherein the width of the outer guide plate section 7 in the left-right direction is larger than that of the inner guide plate section 8 in the left-right direction, and four support columns 3 enclose a material transportation channel extending in the up-down direction. The anti-falling clamping blocks 15 are arranged in the U-shaped grooves of the supporting upright posts 3, a plurality of anti-falling clamping grooves 16 are formed between two adjacent anti-falling clamping blocks 15 in the vertical direction at intervals. The inner side surface of the outer guide plate section 7 is provided with a guide rail extending in the up-down direction, and the outer side surface of the inner guide plate section 8 is also provided with a guide rail extending in the up-down direction.
The material transporting carriage 9 is located in the material transporting channel and comprises a bottom plate 10, anti-falling plates 11 connected to the front side and the rear side of the bottom plate 10, and buffer plates 12 connected to the left side and the right side of the bottom plate 10. The two sides of the buffer plate 12 are assembled on the guide rail on the outer guide plate section 7 in a sliding way in the up-down direction, so that the material conveying carriage 9 is ensured to move vertically.
As shown in fig. 3, the bottom plate 10 is provided with elongated holes extending in the left-right direction, and two fixing rings 28 arranged at intervals are connected to the bottom of the bottom plate 10. An L-shaped anti-falling support rod 27 is slidably assembled at the long hole, and the L-shaped anti-falling support rod 27 comprises a support rod section extending in the left-right direction and a guide rod section extending in the up-down direction. The support rod section coaxially passes through the two fixing rings 28, a support spring 29 is coaxially sleeved on the part of the support rod section between the two fixing rings 28, and the top of the guide rod section extends out of the upper part of the bottom plate 10. The end of the support rod section is provided with a pushed cambered surface matched with the anti-falling clamping block 15, and the support rod section stretches into the corresponding anti-falling clamping groove 16 when the support spring 29 is in a natural state. In the process of lifting the material conveying carriage 9, when the support rod section is contacted with the anti-falling clamping block, the anti-falling clamping block 15 can push the support rod section, so that the L-shaped anti-falling support rod 27 moves in the direction away from the support upright post to cross the anti-falling clamping block 15, and then the L-shaped anti-falling support rod 27 is inserted into the anti-falling clamping groove 16 again under the action of the elastic force of the support spring 29.
In this embodiment, four L-shaped anti-falling support rods 27 are provided, and are respectively arranged corresponding to the four support columns 3. In order to ensure that the L-shaped anti-falling support rod 27 and the anti-falling clamping block 15 do not interfere, the anti-falling clamping block 15 is provided with a pushing cambered surface matched with the pushed cambered surface.
An inverted U-shaped lifting block 24 is fixed on each anti-falling plate 11, and two groups of anti-falling assemblies are arranged on each anti-falling plate 11. In this embodiment, each set of fall arrest assembly includes a pull pulley 17, a guide sleeve 18, a fall arrest plunger 20, a baffle 19, a fall arrest spring 21, and a fall arrest rope 22. Wherein, two lifting pulleys 17 on each anti-falling plate 11 are located between the lifting block 24 and the anti-falling plate 11 and fixed on the anti-falling plate 11, the anti-falling inserted rod 20 coaxially passes through the guide sleeve 18 and the lifting block 24, the baffle 19 is connected at the end part of the anti-falling inserted rod 20, and the anti-falling inserted rod 20 is used for being inserted into the corresponding anti-falling clamping groove 16 and is in blocking fit with the corresponding anti-falling clamping block 15 in the up-down direction. The anti-falling spring 21 is sleeved outside the anti-falling inserted rod 20, one end of the anti-falling spring 21 is fixedly connected with the baffle 19, and the other end of the anti-falling spring is fixedly connected with the guide sleeve; one end of the anti-falling rope 22 bypasses the lifting pulley 17 and is connected with the end part of the anti-falling inserting rod 20, the other end of the anti-falling rope is connected with a stop block 23, the top of the stop block 23 is connected with a lifting steel wire rope 26, the lifting steel wire rope 26 passes through the lifting block 24 and is connected with the lifting winch 25, and the stop block 23 is in stop fit with the lifting block 24 when the material conveying carriage moves upwards, so that the lifting steel wire rope 26 can pull the material conveying carriage 9 to move upwards.
As shown in fig. 2 and 4, the weight buffer assembly includes two weight buffer blocks 13 and two weight buffer pulleys 14, the two weight buffer blocks 13 are respectively arranged at the left and right sides of the carriage 9, and both sides of the weight buffer blocks 13 are slidably fitted with the guide rails on the inner guide plate section 8. The counterweight buffer pulleys 14 are arranged at proper positions on the reinforcing diagonal columns on the supporting framework, the tops of the counterweight buffer blocks 13 are connected with buffer steel wire ropes 30, and the buffer steel wire ropes 30 bypass the corresponding counterweight buffer pulleys 14 and are connected with the buffer plates 12 of the material conveying boxes 9. In this embodiment, the weight of the counterweight buffer 13 is smaller than the weight of the carriage 9 and larger than half the weight of the carriage 9. The buffer wire 30 has a length sufficient to not pull up the counterweight buffer block 13 when the carriage 9 is lifted upward.
In the lifting process of the material transporting carriage, if the power is cut off or the rope connected with the material transporting carriage breaks, the material transporting carriage falls under the action of gravity, but at the moment, under the action of the counterweight buffer block, the falling speed of the material transporting carriage is reduced, meanwhile, the falling prevention inserting rod is not pulled by the lifting action of the lifting steel wire rope, is stretched into the falling prevention clamping groove by the elastic force of the falling prevention spring, and is blocked and matched with the falling prevention clamping block in the up-down direction until the material transporting carriage falls to a certain distance, so that the material transporting carriage is blocked at the current position to prevent the falling of the material transporting carriage, the material transporting carriage is effectively prevented from directly falling to the ground, and the safety of the material transporting carriage during material transporting is ensured. In addition, the L-shaped anti-falling support rod is inserted into the corresponding anti-falling clamping groove under the action of the support spring in the lifting process of the material conveying carriage, so that the L-shaped anti-falling support rod can be firstly matched with the anti-falling clamping block in a blocking manner when the material conveying carriage falls down, and the material conveying carriage can be prevented from falling to the ground.
In other embodiments, only one counterweight buffer block and one counterweight buffer pulley may be provided, where the weight of the counterweight buffer block is not greater than the weight of the transport carriage, so as to achieve a deceleration effect on the transport carriage.
The embodiments of the present invention described above do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.
Claims (7)
1. The utility model provides a safe anti-falling device for construction is built in room which characterized in that includes:
the wall-attached supports are arranged in a plurality of pairs at intervals along the up-down direction, and two wall-attached supports in each pair are all used for being fixed on the outer side of the shear wall in the corresponding layer;
the supporting framework comprises a base, four supporting columns, a top seat and reinforcing inclined columns, wherein the base is fixed on the ground, the four supporting columns are welded on the base and are in rectangular distribution, the top seat is welded at the top of the four supporting columns, the reinforcing inclined columns are welded between the two corresponding supporting columns, the horizontal section of each supporting column is U-shaped, the supporting framework comprises a fixed column section, an outer guide plate section and an inner guide plate section, the outer guide plate section is connected to the front side and the rear side of the fixed column section, the width of the outer guide plate section in the left-right direction is larger than that of the inner guide plate section in the left-right direction, a material conveying channel extending along the up-down direction is formed between the four supporting columns, and the two supporting columns close to the shear wall are connected with corresponding wall attaching supports;
the anti-falling clamping blocks are arranged in the U-shaped grooves of the supporting upright posts, a plurality of anti-falling clamping grooves are formed between two adjacent anti-falling clamping blocks in the vertical direction at intervals;
the material transporting carriage comprises a bottom plate, anti-falling plates connected to the front side and the rear side of the bottom plate and buffer plates connected to the left side and the right side of the bottom plate, and inverted U-shaped lifting blocks are fixed on the anti-falling plates;
the anti-falling assembly is provided with two groups on each anti-falling plate, each group comprises a lifting pulley, a guide sleeve, an anti-falling inserting rod, a baffle plate, an anti-falling spring and an anti-falling rope, the lifting pulley is positioned between the lifting block and the anti-falling plate and is fixed on the anti-falling plate, the anti-falling inserting rod coaxially penetrates through the guide sleeve and the lifting block, the baffle plate is connected to the end part of the anti-falling inserting rod, and the anti-falling inserting rod is used for being inserted into a corresponding anti-falling clamping groove and is in blocking fit with the corresponding anti-falling clamping block in the up-down direction; the anti-falling spring is sleeved outside the anti-falling inserted link, one end of the anti-falling spring is fixedly connected with the baffle, and the other end of the anti-falling spring is fixedly connected with the guide sleeve; one end of the anti-falling rope bypasses the lifting pulley and is connected with the end part of the anti-falling inserting rod, the other end of the anti-falling rope is connected with a stop block, the top of the stop block is connected with a lifting steel wire rope, and the lifting steel wire rope penetrates through the lifting block and is connected with the lifting driving mechanism, and the stop block is in stop fit with the lifting block when the material conveying carriage moves upwards;
the counterweight buffering assembly comprises a counterweight buffering block and a counterweight buffering pulley, wherein two ends of the counterweight buffering block are movably assembled on two corresponding supporting columns along the up-down direction, the counterweight buffering pulley is installed on a supporting framework, the top of the counterweight buffering block is connected with a buffering steel wire rope, and the buffering steel wire rope bypasses the corresponding counterweight buffering pulley and is connected with a buffering plate of a material conveying carriage.
2. The safe anti-falling device for building construction according to claim 1, wherein the counterweight buffer blocks and the counterweight buffer pulleys are both arranged at the left side and the right side of the material transporting carriage respectively, and the two counterweight buffer blocks are connected with the corresponding buffer plates by bypassing the corresponding counterweight buffer pulleys through buffer steel wire ropes.
3. The safety fall protection device for building construction according to claim 1, wherein the weight of the counterweight buffer is less than the weight of the carriage and more than half the weight of the carriage.
4. A safety fall protection device for building construction according to any one of claims 1-3, wherein the front and rear ends of the buffer plate are in guiding sliding fit with the outer guide plate sections of the corresponding support columns in the up-down direction.
5. The safe anti-falling device for building construction according to any one of claims 1-3, wherein an L-shaped anti-falling supporting rod is movably assembled on the bottom plate along the left-right direction, the L-shaped anti-falling supporting rod comprises a supporting rod section extending along the left-right direction and a guide rod section extending along the up-down direction, two fixing rings are arranged at the bottom of the bottom plate at intervals, the supporting rod section coaxially penetrates through the two fixing rings, a supporting spring is coaxially sleeved on the part, located between the two fixing rings, of the supporting rod section, the top of the guide rod section extends out of the top of the bottom plate, the end part of the supporting rod section is provided with a pushed cambered surface matched with an anti-falling clamping block, and the supporting rod section stretches into a corresponding anti-falling clamping groove when the supporting spring is in a natural state.
6. The safe anti-falling device for building construction according to claim 5, wherein the L-shaped anti-falling support rods are provided with four support columns which are respectively arranged corresponding to the four support columns.
7. The safe anti-falling device for building construction according to claim 5, wherein the anti-falling clamping block is provided with a pushing cambered surface matched with the pushed cambered surface.
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CN202210420630.9A CN114751276B (en) | 2022-04-21 | 2022-04-21 | Safe anti-falling device for building construction |
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CN202210420630.9A CN114751276B (en) | 2022-04-21 | 2022-04-21 | Safe anti-falling device for building construction |
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CN114751276B true CN114751276B (en) | 2023-07-21 |
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CN115744546B (en) * | 2023-01-03 | 2023-05-09 | 三星电梯有限公司 | Goods transportation elevator for building site |
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CN112780061A (en) * | 2021-03-05 | 2021-05-11 | 苏江忠 | Climbing frame |
WO2021249434A1 (en) * | 2020-06-11 | 2021-12-16 | 常熟理工学院 | Anti-falling and vibration-dampening elevator car |
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2022
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Publication number | Priority date | Publication date | Assignee | Title |
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CN202936050U (en) * | 2012-10-25 | 2013-05-15 | 刘伟 | Improved elevator for hanging basket |
CN203158956U (en) * | 2012-12-03 | 2013-08-28 | 福建省连江县迅捷技术孵化有限公司 | Building for preventing ladder cage of construction lift from falling |
CN209721294U (en) * | 2019-01-30 | 2019-12-03 | 内蒙古玉龙矿业股份有限公司 | A kind of buffering anti-falling cage |
WO2021249434A1 (en) * | 2020-06-11 | 2021-12-16 | 常熟理工学院 | Anti-falling and vibration-dampening elevator car |
CN112780061A (en) * | 2021-03-05 | 2021-05-11 | 苏江忠 | Climbing frame |
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