CN215537888U - Anti-falling device for steel structure engineering and anti-falling safety rope comprising same - Google Patents
Anti-falling device for steel structure engineering and anti-falling safety rope comprising same Download PDFInfo
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- CN215537888U CN215537888U CN202120462001.3U CN202120462001U CN215537888U CN 215537888 U CN215537888 U CN 215537888U CN 202120462001 U CN202120462001 U CN 202120462001U CN 215537888 U CN215537888 U CN 215537888U
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Abstract
The utility model provides an anti-falling device for steel structure engineering and an anti-falling safety rope comprising the same, wherein the anti-falling device comprises a shell, a braking layer, a rotating disc, a rope winding disc, a reel and a rope, the braking layer is fixedly laid on the inner surface of the shell, the rotating disc and the rope winding disc are positioned in the shell and fixedly sleeved on the reel, the rope is wound on the rope winding disc, one end of the rope is fixedly connected with the rope winding disc, and the other end of the rope penetrates through the shell to be connected with an operator; the inner surface of the brake layer is in contact with the circumferential surface of the rotating disc, and the friction force between the brake layer and the rotating disc is greater than the gravity of an operator. When operating personnel falls, drive the wire winding dish through the rope, the wire winding dish passes through the spool and drives the rolling disc rotation, because there is frictional force between brake layer and the rolling disc, and frictional force is greater than operating personnel's gravity, operating personnel is falling the back, and the speed that falls diminishes gradually, until stopping. Thereby, make operating personnel slowly fall, avoid emergency stop to cause operating personnel fracture.
Description
Technical Field
The utility model relates to an anti-falling device for steel structure engineering, and belongs to the field of high-altitude operation tools.
Background
In the steel construction work process, operating personnel often at high altitude construction, along with the increase of height, the work of comparatively simple at ordinary times becomes more difficult. The high-speed-difference self-control safety hook solves the difficulties, but the general high-speed-difference self-control safety hook has a complex structure, so that the cost is high. The volume is larger, the weight is also larger, and the carrying is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a falling prevention device for steel structure engineering, which aims to solve the problems in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme: the anti-falling device for the steel structure engineering is used for preventing an operator from falling from high altitude and comprises a shell, a braking layer, a rotating disc, a rope winding disc, a reel and a rope, wherein the braking layer is fixedly laid on the inner surface of the shell, the rotating disc and the rope winding disc are positioned in the shell and fixedly sleeved on the reel, the rope is wound on the rope winding disc, one end of the rope winding disc is fixedly connected with the rope winding disc, and the other end of the rope winding disc penetrates through the shell to be connected with the operator; the inner surface of the brake layer is in contact with the circumferential surface of the rotating disc, and the friction force between the brake layer and the rotating disc is greater than the gravity of an operator. Preferably, the braking layer is made of rubber material with high friction coefficient.
Furthermore, a plurality of accommodating grooves are formed in the rotating disc, and steel balls are arranged in the accommodating grooves; a plurality of spherical grooves are formed in the inner surface of the brake layer, and in the rotating process of the rotating disc, small parts of steel balls can be clamped into the spherical grooves to increase the friction force between the brake layer and the rotating disc.
Furthermore, the number of the accommodating grooves is larger than or equal to that of the spherical grooves.
Furthermore, a rope groove is formed in the rope winding disc, and the rope is wound in the rope groove.
Further, the housing has an opening through which the cord is passed for connection to an operator.
Further, be provided with the locating part on the rope, the locating part is close to the opening setting, and the cross section size of locating part is greater than open-ended cross section size.
The utility model also provides an aerial work anti-falling safety rope which comprises any one anti-falling device for the steel structure engineering, and further comprises a locking device, wherein the locking device is connected with the anti-falling device for the steel structure engineering through a metal wire stranded rope, the locking device comprises a hook, a closing rod, a rotating shaft and a torsion spring, one end of the closing rod is rotatably connected with the root of the hook through the rotating shaft, the torsion spring is sleeved on the rotating shaft, and the torsion spring enables the closing rod to rotate until the other end of the closing rod is overlapped on the head of the hook.
Compared with the prior art, the utility model has the beneficial effects that: since the inner surface of the brake layer is in contact with the circumferential surface of the rotating disc, the frictional force between the brake layer and the rotating disc is greater than the weight of the operator. When operating personnel falls, drive the wire winding dish through the rope, the wire winding dish passes through the spool and drives the rolling disc rotation, because there is frictional force between brake layer and the rolling disc, and frictional force is greater than operating personnel's gravity, operating personnel is falling the back, and the speed that falls diminishes gradually, until stopping. Thereby, make operating personnel slowly fall, avoid emergency stop to cause operating personnel fracture.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a fall-preventing device for steel structure engineering according to an embodiment of the utility model;
FIG. 2 is a schematic view of the rotary disk of FIG. 1 in high speed rotation;
FIG. 3 is a schematic sectional view of the anti-falling device for the steel structural engineering in FIG. 1;
FIG. 4 is a schematic structural view of the aerial work fall-preventing safety rope according to an embodiment of the utility model.
In the figure: 1. a housing; 2. a brake layer; 3. rotating the disc; 4. a rope; 5. an operator; 6. a locking device; 7. a reel; 8. a rope winding disc; 21. a spherical groove; 31. a containing groove; 32. steel balls; 41. A limiting member; 61. hooking; 62. a closing lever; 63. a rotating shaft; 64. a torsion spring; 81. rope grooves.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, the anti-falling device for steel structure engineering according to a preferred embodiment of the present invention is used for preventing an operator 5 from falling from a high altitude, and includes a housing 1, a braking layer 2, a rotating disc 3, a rope winding disc 8, a reel 7 and a rope 4, wherein the braking layer 2 is fixedly laid on an inner surface of the housing 1, the rotating disc 3 and the rope winding disc 8 are located in the housing 1 and fixedly sleeved on the reel 7, the rope 4 is wound on the rope winding disc 8, one end of the rope winding disc is fixedly connected with the rope winding disc 8, and the other end of the rope winding disc penetrates through the housing 1 and is connected with the operator 5; the inner surface of the brake layer 2 is in contact with the circumferential surface of the rotating disc 3 and the friction between the brake layer 2 and the rotating disc 3 is greater than the weight of the operator 5. Preferably, the braking layer 2 is made of a rubber material with a high friction coefficient.
Since the inner surface of the brake layer 2 is in contact with the circumferential surface of the rotary disc 3, the frictional force between the brake layer 2 and the rotary disc 3 is greater than the weight of the operator 5. When operating personnel 5 fall, drive around cable drum 8 through rope 4, around cable drum 8 and drive rolling disc 3 through spool 7 and rotate, because there is frictional force between brake layer 2 and rolling disc 3, and frictional force is greater than operating personnel 5's gravity, operating personnel 5 is falling the back, and the speed that falls diminishes gradually, until stopping. Thereby, the operator 5 is caused to slowly fall, and the fracture of the operator 5 caused by the emergency stop is avoided.
In order to enhance the friction force between the brake layer 2 and the rotating disc 3, further, a plurality of accommodating grooves 31 are arranged on the rotating disc 3, and steel balls 32 are arranged in the accommodating grooves 31; the inner surface of the brake layer 2 is provided with a plurality of spherical grooves 21, and in the rotating process of the rotating disc 3, a small part of the steel balls 32 can be clamped into the spherical grooves 21 to increase the friction force between the brake layer 2 and the rotating disc 3. When the accommodating groove 31 is aligned with the spherical groove 21 and the steel balls 32 roll into the spherical groove 21, the edge of the accommodating groove 31 is blocked by the steel balls 32, so that the relative sliding between the rotating disc 3 and the braking layer 2 is blocked, and the friction force between the rotating disc 3 and the braking layer 2 is increased; when the edge of the receiving groove 31 applies a sufficient force to the steel ball 32, the steel ball 32 slides out of the spherical groove 21, and the friction force between the rotating disc 3 and the brake layer 2 returns to normal.
Fig. 1 shows a situation in which only a part of the steel balls 32 are inserted into the spherical groove 21 when the operator 5 falls at a low speed. Fig. 2 shows a situation in which the steel balls 32 are completely inserted into the spherical grooves 21 by centrifugal force when the operator 5 falls at a high speed. In the situation shown in fig. 2, the friction between the rotating disc 3 and the brake layer 2 is at its maximum.
Further, the number of the accommodating grooves 31 is greater than or equal to the number of the spherical grooves 21. The greater the number of the receiving grooves 31 and the steel balls 32, the greater the frictional force between the rotating disc 3 and the brake layer 2.
Further, a rope groove 81 is formed on the rope winding disc 8, and the rope 4 is wound in the rope groove 81.
Further, the housing 1 has an opening through which the rope 4 is connected to the operator 5.
Further, a limiting member 41 is arranged on the rope 4, the limiting member 41 is arranged close to the opening, and the cross-sectional dimension of the limiting member 41 is larger than that of the opening. The limiting member 41 can not only limit the position of the rope 4, but also mark the position of the rope 4.
Referring to fig. 4, the utility model also provides an aerial work anti-falling safety rope, which comprises any one of the anti-falling devices for the steel structure engineering, the aerial work anti-falling safety rope further comprises a locking device 6, the locking device 6 is connected with the anti-falling device for the steel structure engineering through a metal wire twisted rope, the locking device 6 comprises a hook 61, a closing rod 62, a rotating shaft 63 and a torsion spring 64, one end of the closing rod 62 is rotatably connected with the root of the hook 61 through the rotating shaft 63, the torsion spring 64 is sleeved on the rotating shaft 63, and the torsion spring 64 enables the closing rod 62 to rotate until the other end of the closing rod 62 is overlapped with the head of the hook 61.
The use method of the anti-falling safety rope for aloft work comprises the following steps: the locking device 6 is locked on a steel pipe at a high position, and the torsion spring 64 drives the closing rod 62 to rotate, so that the other end of the closing rod 62 is overlapped on the head part of the hook 61. The locking device 6 has the advantages of difficult release and firm lock catch. The locking device 6 is connected with the anti-falling device for the steel structure engineering through a metal wire twisted rope, the rope 4 extends out of the anti-falling device for the steel structure engineering to be connected with the safety vest, and the operator 5 starts to work after wearing the safety vest.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (7)
1. The anti-falling device for the steel structure engineering is used for preventing an operator from falling from high altitude and is characterized by comprising a shell, a braking layer, a rotating disc, a rope winding disc, a reel and a rope, wherein the braking layer is fixedly laid on the inner surface of the shell, the rotating disc and the rope winding disc are positioned in the shell and fixedly sleeved on the reel, the rope is wound on the rope winding disc, one end of the rope winding disc is fixedly connected with the rope winding disc, and the other end of the rope winding disc penetrates through the shell to be connected with the operator; the inner surface of the brake layer is in contact with the circumferential surface of the rotating disc, and the friction force between the brake layer and the rotating disc is greater than the gravity of an operator.
2. The anti-falling device for the steel structure engineering as claimed in claim 1, wherein a plurality of accommodating grooves are arranged on the rotating disc, and steel balls are arranged in the accommodating grooves; a plurality of spherical grooves are formed in the inner surface of the brake layer, and in the rotating process of the rotating disc, small parts of steel balls can be clamped into the spherical grooves to increase the friction force between the brake layer and the rotating disc.
3. The anti-falling device for the steel structure engineering as claimed in claim 2, wherein the number of the accommodating grooves is greater than or equal to the number of the spherical grooves.
4. The anti-falling device for the steel structure engineering as claimed in claim 3, wherein the rope winding disc is provided with a rope groove, and the rope is wound in the rope groove.
5. The fall arrest device for steel structural works according to claim 4, wherein the housing has an opening through which the rope is connected to an operator.
6. The fall arrest device for steel structural engineering according to claim 5, wherein a stop is provided on the rope, the stop being located adjacent to the opening, the stop having a cross-sectional dimension greater than the cross-sectional dimension of the opening.
7. The anti-falling safety rope for the high-altitude operation is characterized by further comprising a locking device, the locking device is connected with the anti-falling device for the steel structure engineering through a metal wire twisted rope, the locking device comprises a hook, a closing rod, a rotating shaft and a torsion spring, one end of the closing rod is rotatably connected with the root of the hook through the rotating shaft, the torsion spring is sleeved on the rotating shaft, and the torsion spring enables the closing rod to rotate until the other end of the closing rod is overlapped on the head of the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462001.3U CN215537888U (en) | 2021-03-04 | 2021-03-04 | Anti-falling device for steel structure engineering and anti-falling safety rope comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462001.3U CN215537888U (en) | 2021-03-04 | 2021-03-04 | Anti-falling device for steel structure engineering and anti-falling safety rope comprising same |
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| CN215537888U true CN215537888U (en) | 2022-01-18 |
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| CN202120462001.3U Active CN215537888U (en) | 2021-03-04 | 2021-03-04 | Anti-falling device for steel structure engineering and anti-falling safety rope comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300822A (en) * | 2022-08-15 | 2022-11-08 | 广东电网有限责任公司 | High-altitude electric power operation anti-falling device |
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2021
- 2021-03-04 CN CN202120462001.3U patent/CN215537888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300822A (en) * | 2022-08-15 | 2022-11-08 | 广东电网有限责任公司 | High-altitude electric power operation anti-falling device |
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