CN108332628B - Individual scattered matter protector during blasting - Google Patents
Individual scattered matter protector during blasting Download PDFInfo
- Publication number
- CN108332628B CN108332628B CN201810269974.8A CN201810269974A CN108332628B CN 108332628 B CN108332628 B CN 108332628B CN 201810269974 A CN201810269974 A CN 201810269974A CN 108332628 B CN108332628 B CN 108332628B
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- frame
- frames
- protective net
- net
- protection
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- 238000005422 blasting Methods 0.000 title claims abstract description 21
- 230000001012 protector Effects 0.000 title claims description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention discloses a protective device for individual scattered matters during blasting, which comprises a first frame, a second frame, a first protective net and a second protective net, wherein a plurality of first frames are arranged on the side surfaces of upright posts, the first protective net is wound on the outer side of the first frame in one or more layers, the second protective net is arranged in the second frame, the number of the second frames is the same as that of the first frames, the second frames are fixedly connected with the first frames through fasteners, the fasteners penetrate through meshes of the first protective net, the adjacent second frames are connected through connecting pieces, and gaps are reserved between the first protective net and the second protective net. Gaps are reserved between the first protective net and the second protective net, so that the mechanical property of the first protective net is fully exerted, secondary protection is realized, and safety is guaranteed; the first protection net is fixed by the fasteners, the parts of the first protection net on the four first frames are in a tensioning state, and the four side surfaces are not mutually influenced. Even if a part of one side surface is damaged, the mechanical properties of other parts are not affected.
Description
Technical Field
The invention relates to the technical field of demolition blasting, in particular to a protection device for individual scattered matters during blasting.
Background
In city reconstruction and expansion projects, a large number of houses built in the sixth seventies of the last century are facing demolition, and blasting demolition techniques are recognized as the safest, efficient and economical method compared to manual and mechanical demolition methods. In the field of blasting demolition, the upright posts and beams of a concrete structure building are the most common drilling blasting objects. The basic principle of demolishing the building with concrete structure by adopting the drilling and blasting method is to destroy the key supporting members such as upright posts, beams and the like of the building by utilizing the energy released by the explosive explosion instantly, thereby achieving the purpose of destabilizing and collapsing the building under the action of gravity. The basic process of blasting demolition is "drilling-safety protection-charging-networking-detonation".
In order to prevent the broken stone from splashing to hurt people when the column is blasted, the column is generally wrapped and protected. The traditional safety protection measures are as follows: firstly, binding a layer of bamboo springboard on the surface of an upright post by using iron wires, and then covering 2-3 layers of cotton quilts on the bamboo springboard and wrapping the bamboo springboard by using ropes.
However, the above structure has the following disadvantages: firstly, the bamboo springboard is heavy and laborious to carry; secondly, the cotton quilt has poor air permeability, is not beneficial to release of explosion shock waves, and affects the safety of explosion; finally, the protection mode of binding the bamboo springboard and wrapping the cotton quilt has large workload and low construction efficiency. Therefore, how to design a light, labor-saving, high-safety and convenient-to-assemble individual scattered object protection device during blasting is a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a protective device for individual scattered matters during blasting, so as to solve the technical problems in the prior art and improve the use safety and convenience.
In order to achieve the above object, the present invention provides the following solutions:
the invention discloses a device for protecting individual scattered matters during blasting, which comprises a first frame, a second frame, a first protection net and a second protection net, wherein a plurality of first frames are arranged on the side surfaces of upright posts, the first protection net is wound on the outer sides of the first frames in one or more layers, the second protection net is arranged in the second frames, the number of the second frames is the same as that of the first frames, the second frames are fixedly connected with the first frames through fasteners, the fasteners penetrate through meshes of the first protection net, the adjacent second frames are connected through connecting pieces, and gaps are reserved between the first protection net and the second protection net.
Preferably, the device further comprises a water bag, wherein the water bag is fixed between the second protective net and the first protective net.
Preferably, the first protection net is a flexible net.
Preferably, the second protection net is a flexible net.
Preferably, the device further comprises a third protection net, wherein two ends of the third protection net are respectively fixed on the outer side surfaces of two adjacent second frames.
Preferably, the upright is a cylinder, the first frame and the second frame are composed of two semicircular rods arranged in parallel and a supporting rod connected with the two semicircular rods, the first frame and the second frame are two, the adjacent first frames are connected through connecting pieces, and the adjacent second frames are connected through connecting pieces.
Preferably, the upright is a cuboid, the first frame and the second frame are rectangular frames, and the first frame and the second frame are four.
Preferably, adjacent first frames are connected by a connecting member.
Compared with the prior art, the invention has the following technical effects:
gaps are reserved between the first protective net and the second protective net, so that the mechanical property of the first protective net is fully exerted, secondary protection is realized, and safety is guaranteed; the first protection net is fixed by the fasteners, the parts of the first protection net on the four first frames are in a tensioning state, and the four side surfaces are not mutually influenced. Even if a part of one side surface is damaged, the mechanical properties of other parts are not affected; a water bag is arranged between the first protective net and the second protective net, and the water bag is hung on the second protective net. When the first protective net is impacted, the water bag can play a role in buffering, and the water bag can prevent dust from escaping after being broken, so that environmental pollution is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a first frame in embodiment 2 of the present invention;
reference numerals illustrate: 1. a first frame; 2. a second frame; 3. a first protection net; 4. a second protection net; 5. a connecting piece; 6. and (5) a water bag.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a protective device for individual scattered matters during blasting, so as to improve the safety and the high efficiency of the blasting process and reduce blasting dust.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Examples
As shown in fig. 1, the present embodiment provides a protection device for individual scattered objects at the time of blasting, which is mounted on a rectangular column and includes a first frame 1, a second frame 2, a first protection net 3 and a second protection net 4.
The four first frames 1 are arranged on the four side surfaces of the upright post, and the first protective net 3 is wound on the outer side of the first frames 1 in one layer or multiple layers, so that the first protective net 3 is tightly attached to the upright post. The second protection network 4 is arranged in the second frame 2, the number of the second frames 2 is the same as that of the first frames 1, the second frames 2 are attached to the first frames 1, the second frames 2 are fixedly connected with the first frames 1 through fasteners, and the fasteners penetrate through meshes of the first protection network 3. The adjacent second frames 2 are connected through connecting pieces 5, and gaps are reserved between the first protective net 3 and the second protective net 4.
The first protection net 3 is a flexible net, such as a protection net made of polyethylene, polypropylene or the like. The web of such material is elastically deformable over a range of stretches, but will break when the degree of stretch exceeds a certain proportion. Because the stress condition of the first protection net 3 is complex in the explosion process, the stress uniformity of each part of the first protection net 3 cannot be ensured, and the mechanical properties of each part of the first protection net 3 cannot be ensured to be consistent. Therefore, if the first protection net 3 is simply wound around the upright post for blasting protection, it is difficult to secure safety.
In this embodiment, the parts of the first protection net 3 on the four first frames 1 are all in a tensioning state due to the fixation of the fasteners, and the four sides do not affect each other. Even if a part of one side surface is damaged, the mechanical properties of other parts are not affected.
Since a gap is left between the first protection net 3 and the second protection net 4, the first protection net 3 breaks when the first protection net 3 is insufficient to block stones. At this time, the first protection net 3 has been stretched by a certain length, and the stone blocks have been partially reduced in their kinetic energy by the obstruction of the first protection net 3, and then are blocked by the second protection net 4. The gaps between the first protective net 3 and the second protective net 4 are designed to provide a certain stretching distance for the first protective net 3, and the specific size of the gaps can be set according to the deformation limit of the material of the first protective net 3, so that the first protective net 3 on four sides of the upright can play the maximum role. If breakage of the first protection net 3 is not intended, the clearance may be appropriately reduced so as to reuse the first protection net 3. At this time, the first protection net 3 mainly plays a role of buffering, and main impact is borne by the second protection net 4. The second protection net 4 is selected from flexible nets and metal nets, and the second protection net 4 is better than the first protection net 3 in mechanical property under normal conditions.
A water bag 6 is arranged between the first protective net 3 and the second protective net 4, and the water bag 6 is hung on the second protective net 4. When the first protective net 3 is impacted, the water bag 6 can play a role in buffering, and the water bag 6 can prevent dust from escaping after being broken, so that environmental pollution is avoided.
In order to improve the protection capability of the four corners of the upright, and prevent stones from flying out from the gaps of the first frame 1 and the gaps of the second frame 2, a third protection net (not shown in the figure) is further provided in this embodiment. The two ends of the third protection net are respectively fixed on the outer surfaces of the two adjacent second frames 2, so that the second protection is carried out after the first protection net 3 at the gap of the adjacent first frames 1 is damaged.
In addition to the parts in the second frame 2, i.e., the first and second protection nets 3 and 4 fixed to the second frame 2, the connection members 5 for connecting the adjacent second frames 2 are also subjected to an impact. In order to improve the overall safety, adjacent first frames 1 may also be connected by a connecting member 5.
In this embodiment, the connecting member 5 is made of an elastic material, such as a rubber strip, and those skilled in the art can also use other materials, such as a wire.
Examples
The embodiment provides a protection device for individual scattered matters during blasting, which is arranged on a cuboid upright post. The structure is substantially the same as that of the embodiment 1, and the first frame 1, the first protection net 3, the water bag 6 and the second frame 2 with the second protection net 4 are arranged from inside to outside. The difference is that, due to the different shapes of the upright posts, the shapes of the first frame 1 attached to the upright posts and the second frame 2 attached to the first frame 1 are correspondingly changed.
As shown in fig. 2, the first frame 1 and the second frame 2 are each composed of two semicircular rods arranged in parallel and a supporting rod connecting the two semicircular rods, and the first frame 1 and the second frame 2 are two. Adjacent first frames 1 are connected by a connecting member 5, and adjacent second frames 2 are connected by a connecting member 5.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to vary from one of ordinary skill in the art to another in view of the teachings of the present invention. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (5)
1. The utility model provides a discrete thing protector during blasting, its characterized in that includes first frame, second frame, first protection network and second protection network, a plurality of first frame sets up in the side of stand, first protection network be one or more layer twine in the outside of first frame, the second protection network set up in the second frame, the second frame is the same with the quantity of first frame, the second frame pass through the fastener with first frame fixed connection, the fastener passes the mesh of first protection network, adjacent link to each other through the connecting piece between the second frame, leave the clearance between first protection network and the second protection network;
the individual scattered matter protection device during blasting also comprises a water bag and a third protection net; the water bag is fixed between the second protective net and the first protective net; two ends of the third protective net are respectively fixed on the outer side surfaces of two adjacent second frames; the adjacent first frames are connected through connecting pieces.
2. The individual blast-resistant unit of claim 1, wherein the first protective mesh is a flexible mesh.
3. The individual blast-resistant unit of claim 1, wherein the second protective mesh is a flexible mesh.
4. The apparatus according to claim 1, wherein the upright is cylindrical, the first frame and the second frame are each composed of two semicircular rods arranged in parallel and a support rod connecting the two semicircular rods, the first frame and the second frame are two, adjacent first frames are connected by a connecting piece, and adjacent second frames are connected by a connecting piece.
5. The blast-time individual scatter protection device according to claim 1, wherein the upright is a cuboid, the first frame and the second frame are rectangular frames, and the first frame and the second frame are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269974.8A CN108332628B (en) | 2018-03-29 | 2018-03-29 | Individual scattered matter protector during blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269974.8A CN108332628B (en) | 2018-03-29 | 2018-03-29 | Individual scattered matter protector during blasting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108332628A CN108332628A (en) | 2018-07-27 |
| CN108332628B true CN108332628B (en) | 2024-03-08 |
Family
ID=62931780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269974.8A Active CN108332628B (en) | 2018-03-29 | 2018-03-29 | Individual scattered matter protector during blasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108332628B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057260A (en) * | 2019-05-28 | 2019-07-26 | 湘潭大学 | A kind of pipe gallery construction blasting isolating device |
| CN114001611A (en) * | 2021-11-04 | 2022-02-01 | 贵州贵安新联爆破工程有限公司 | Large-inclination jointed rock blasting protection device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419140A (en) * | 2011-11-25 | 2012-04-18 | 中铁十二局集团第三工程有限公司 | Multielement three-dimensional safety protection method |
| CN205580313U (en) * | 2016-03-27 | 2016-09-14 | 贵州新联爆破工程集团有限公司 | Stand blasting protector |
| CN206073829U (en) * | 2016-09-09 | 2017-04-05 | 安徽理工大学 | A kind of blasting flyrock preventer |
| CN208075694U (en) * | 2018-03-29 | 2018-11-09 | 武汉爆破有限公司 | The individual flying protective devices of explosion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9335140B2 (en) * | 2013-03-15 | 2016-05-10 | Cambridge International, Inc. | Architectural mesh blast screen system |
-
2018
- 2018-03-29 CN CN201810269974.8A patent/CN108332628B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419140A (en) * | 2011-11-25 | 2012-04-18 | 中铁十二局集团第三工程有限公司 | Multielement three-dimensional safety protection method |
| CN205580313U (en) * | 2016-03-27 | 2016-09-14 | 贵州新联爆破工程集团有限公司 | Stand blasting protector |
| CN206073829U (en) * | 2016-09-09 | 2017-04-05 | 安徽理工大学 | A kind of blasting flyrock preventer |
| CN208075694U (en) * | 2018-03-29 | 2018-11-09 | 武汉爆破有限公司 | The individual flying protective devices of explosion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108332628A (en) | 2018-07-27 |
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