CN220924434U - Blocking net for blocking blasts - Google Patents
Blocking net for blocking blasts Download PDFInfo
- Publication number
- CN220924434U CN220924434U CN202322831492.6U CN202322831492U CN220924434U CN 220924434 U CN220924434 U CN 220924434U CN 202322831492 U CN202322831492 U CN 202322831492U CN 220924434 U CN220924434 U CN 220924434U
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- China
- Prior art keywords
- net
- rope
- blocking
- ropes
- blasts
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 9
- 238000009941 weaving Methods 0.000 claims abstract description 5
- 239000011253 protective coating Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 14
- 230000006378 damage Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
Abstract
The utility model discloses a blocking net for blocking blasts, which relates to the technical field of rope net application and is formed by weaving a plurality of longitudinal ropes and transverse ropes woven by ultra-high molecular weight polyethylene, wherein the longitudinal ropes and the transverse ropes are alternately connected in a penetrating way, and are wound and fixed by fine wires at the penetrating way to form knots, two ends of each longitudinal rope and each transverse rope respectively penetrate through a tubular metal lantern ring and then are spliced to form eye rings, the rest of the tail end of each eye ring is fixed by using a magic tape and a binding tape, and fine net meshes are respectively sewn on each mesh of the blocking net. The utility model adopts the ultra-high molecular weight polyethylene fiber rope to weave the net, and the net is externally hung on the outer wall of the cabin through the connecting piece, so that the whole deformation of the net is not more than 1 meter when explosion occurs, thereby effectively blocking blasts generated by internal explosion and reducing the damage to surrounding environment and personnel in the explosion process.
Description
Technical Field
The utility model relates to the technical field of rope net application, in particular to a blocking net for blocking blasts.
Background
The cabin of the ship is in a high-risk complex environment and possibly subjected to attacks such as blasting, and the cabin explodes to generate shock waves and high-speed fragments, so that the internal facilities and staff of the ship are damaged, and even fatal striking and damage are caused. The protection structure on the ship is particularly important for improving the self anti-impact damage capability and improving the vitality of the ship.
In the explosion process of the ship cabin, the outer wall of the outer cabin is pushed out in a whole block, and simultaneously blasts with different sizes and different acting forces can be generated, so that the blasts generated by explosion are blocked within a certain range, and the damage of the cabin explosion to internal facilities and staff on the whole ship can be greatly reduced.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a blocking net for blocking blasts, which is woven by ultra-high molecular weight polyethylene fiber ropes, is externally hung on the outer wall of a cabin through a connecting piece, and is integrally deformed and stretched to be not more than 1 meter when the explosion occurs, so that blasts generated by internal explosion are effectively blocked, and the damage to surrounding environment and personnel in the explosion process is reduced.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
A blocking net for blocking blasts is formed by weaving a plurality of longitudinal ropes and transverse ropes which are woven by ultra-high molecular weight polyethylene, the longitudinal ropes and the transverse ropes are alternately connected in a penetrating way, the penetrating way is wound and fixed by fine wires to form knots, two ends of each longitudinal rope and each transverse rope respectively penetrate through a tubular metal lantern ring and are then spliced to form eye rings, the balance of the tail end of each eye ring is fixed by using magic tape and binding tape, and fine net meshes are respectively sewn on each mesh of the blocking net.
The rope of the eye 4 is externally provided with a sheath.
The rope exterior of the eye 4 is provided with a wear-resistant protective coating.
The utility model adopts ultra-high molecular weight polyethylene ropes as raw materials to weave into a net, and the ropes are mutually penetrated and woven in the longitudinal and transverse directions to form knots, and are fixed by filament winding, so that the knots are prevented from sliding, the structure is stable, and the stress is uniform; the fine net is sewn on each mesh of the rope net independently to block fine blasts, and the appearance is attractive; the balance of the tail end of the rope eye ring is fixed by using a magic tape and a binding tape, so that the eye ring can be conveniently woven and the later welding operation can be conveniently performed, and the problem of small rope elongation can be solved; the protective sleeve or the protective coating is arranged outside the rope of the eye ring, so that the wear resistance and the cutting resistance of the eye ring are improved, and the completeness of the rope net is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the connection of the present utility model with a bulkhead;
As an illustration: in order to ensure the structural clarity of fig. 1, the knots 3 (several) and the fine mesh 5 (several) are shown only in one of them, and the rest are not shown in the figure, but do not affect the integrity of the present technical solution.
Detailed Description
The utility model is described in detail below with reference to the attached drawings and the specific embodiments:
As shown in figure 1, the blocking net for blocking blasts is formed by weaving a plurality of longitudinal ropes 1 and transverse ropes 2 woven by ultra-high molecular weight polyethylene, the longitudinal ropes 1 and the transverse ropes 2 are alternately connected in a penetrating way, a rope knot 3 is formed by winding and fixing fine wires at the penetrating way, two ends of each longitudinal rope 1 and each transverse rope 2 respectively penetrate through a tubular metal collar 4 and then are spliced to form eye rings, the rest of the tail end of each eye ring is fixed by using a magic tape and a binding tape, and fine net meshes 5 are respectively sewn on each mesh of the blocking net. The alternate penetration connection is arranged in the utility model, namely, the connection points of each longitudinal rope 1 and each transverse rope 2 alternate, if the connection point is formed by the penetration of the longitudinal rope 1 into the transverse rope 2 at one position, and the connection point adjacent to the connection point is formed by the penetration of the transverse rope 2 into the longitudinal rope 1, so that the alternate penetration and the braiding are repeatedly performed to form a net.
In the embodiment, the intersection of the longitudinal ropes 1 and the transverse ropes 2 is connected in a penetrating way, and the ropes 3 are formed by winding and fixing the penetrating ropes by fine wires, so that the ropes are firmly connected, and the connecting nodes are prevented from moving; the eye ring is woven in an inserting mode, the rest of the tail end of the eye ring is fixed by using a magic tape and a binding tape, and the inserted eye ring is firmly connected and cannot slip; the design of the tubular metal collar 4 increases the wear resistance of the eye in order to protect the rope eye.
In a preferred mode, in the embodiment, the rope of the eye ring is externally provided with a sheath, so that the wear resistance and the cutting resistance of the rope are improved.
In a preferred mode, in this embodiment, a wear-resistant protective coating is arranged outside the rope of the eye ring, so that the wear resistance of the rope is improved.
The following describes the use process and effect of the present invention by taking an explosion of the interior 13KgTNT as an example of a cabin having a length of 4m, a width of 3m, and a height of 2.5 m.
According to the size of the cabin, the blocking net is designed to be formed by weaving 7 longitudinal ropes 1 and 6 transverse ropes 2, wherein the transverse ropes are arranged at intervals of 50cm, and the total number of the blocking net is 6. A pair of metal lug plates 6 are welded at the positions on the outer wall of the cabin, which correspond to the rope ends of the blocking net, the tubular metal lantern ring 4 at the tail end of each rope is placed between the two metal lug plates 6, and the two metal lug plates are fixed through nuts after penetrating through the pin shafts.
According to the size and weight of the bulkhead, the acting time of the bulkhead on the blocking net at the moment of explosion is calculated, the acting force of the bulkhead on the blocking net at the moment of explosion is 7200KN, the acting force is dispersed on 13 ropes and 26 joints, and the stress of each rope is 277KN. Considering that the outwards pushing directions of the bulkheads are inconsistent at the moment of explosion, the stress of the net ropes is uneven, the safety coefficient is set to be 2 in order to improve the safe use of the blocking flexible net, and the maximum breaking strength of each rope is required to be not less than 550KN. According to the index specification of GB/T30668 '8-strand, 12-strand braided ropes and compound braided ropes of ultra-high molecular weight polyethylene fiber', the diameter of the rope is 28mm when the minimum breaking strength is inquired to be 550KN.
Because the rope can be extruded and cut on the contact surface when being stressed instantaneously, smooth guide posts are required to be arranged around the bulkhead in order to ensure the safety and the maximum use efficiency of the rope, and the nominal diameter of the guide posts is not less than 10 times of the diameter of the rope, so that the nominal guide post diameter of the rope in actual contact is not less than 28cm.
In order to ensure the maximum connection firmness of the guide post and the bulkhead, the materials are as consistent as possible with the bulkhead steel plate materials, and are connected in a welding mode.
When the utility model is installed, the ropes are needed to be tensioned during the installation, so that the netting can cover the bulkhead as much as possible, and the instantaneous acting force is dispersed. According to the height and width of the bulkhead, 6 ropes are arranged in the transverse direction, and the length of the tensioned rope is 6m; 7 ropes are arranged in the longitudinal direction, and the length of the tensioned rope is 5.5m. The breaking elongation of the ultra-high molecular weight polyethylene rope is about 7%, and when the rope net is stressed, the whole net is deformed and stretched to be not more than 1 meter, namely blasts generated by explosion are blocked within 1 meter by the blocking net, so that the injury to people or facilities beyond 1 meter is avoided, and the safety of the blasts to people and things in ships is greatly ensured.
It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.
Claims (3)
1. The blocking net for blocking blasts is characterized in that a net is formed by weaving a longitudinal rope (1) and a transverse rope (2) which are woven by a plurality of ultra-high molecular weight polyethylene, the longitudinal rope (1) and the transverse rope (2) are alternately connected in a penetrating way, a rope knot (3) is formed by winding and fixing fine wires at the penetrating part, two ends of each longitudinal rope (1) and each transverse rope (2) respectively penetrate through a tubular metal collar (4) and then are spliced to form eye rings, the rest of the tail end of each eye ring is fixed by using a magic tape and a binding tape, and fine net meshes (5) are respectively sewn on each mesh of the blocking net.
2. A arresting net for arresting blasts as defined in claim 1, wherein the outer part of the rope at the eye is provided with a jacket.
3. A arresting net for arresting blasts as defined in claim 1, wherein the outer part of the rope at the eye is provided with a wear-resistant protective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322831492.6U CN220924434U (en) | 2023-10-20 | 2023-10-20 | Blocking net for blocking blasts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322831492.6U CN220924434U (en) | 2023-10-20 | 2023-10-20 | Blocking net for blocking blasts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220924434U true CN220924434U (en) | 2024-05-10 |
Family
ID=90961656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322831492.6U Active CN220924434U (en) | 2023-10-20 | 2023-10-20 | Blocking net for blocking blasts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220924434U (en) |
-
2023
- 2023-10-20 CN CN202322831492.6U patent/CN220924434U/en active Active
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| GR01 | Patent grant |