CN113600964B

CN113600964B - Gas cutting torch with safety protection device for steel structure processing

Info

Publication number: CN113600964B
Application number: CN202110920638.7A
Authority: CN
Inventors: 武思奇
Original assignee: Jinan Yunchuan Complete Equipment Co ltd
Current assignee: Jinan Yunchuan Complete Equipment Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-08-30
Anticipated expiration: 2041-08-11
Also published as: CN113600964A

Abstract

The invention discloses a gas cutting torch for processing a steel structure with a safety protection device, belonging to the field of gas cutting torches, and the gas cutting torch for processing the steel structure with the safety protection device is characterized in that in the normal use process, under the action of oxygen airflow, a heat-resistant fiber cluster is blown and deformed to leave an oxygen channel, the oxygen airflow and oxidized slag can pass through the heat-resistant fiber cluster and fall onto a splash-proof net and liquid water, under the action of the liquid water, the oxidized slag can be rapidly cooled and a large amount of water vapor is generated, because high-pressure oxygen airflow passes through the channel formed by the splash-proof net, the water vapor can not flow back from gaps of the splash-proof net and only can escape from outer steam through holes and inner steam through holes, the influence on gas cutting of a steel structure plate is reduced, the possibility of splashing of the oxidized slag is greatly reduced, and the flammability of a gas cutting field is not easy to ignite, the fire is not easy to be induced, and the production accident is not easy to be caused.

Description

Gas cutting torch with safety protection device for steel structure processing

Technical Field

The invention relates to the field of gas cutting torches, in particular to a gas cutting torch with a safety protection device for steel structure processing.

Background

Gas cutting means that gas flame is utilized to preheat cut metal to an ignition point, the cut metal is violently combusted in pure oxygen flow to form slag and release a large amount of heat, and under the blowing force of high-pressure oxygen, oxidized slag is blown off: the heat released further preheats the next layer of metal to reach its melting point. The gas cutting process of metal is a continuous process of preheating, burning and slag blowing, and is a process of burning metal in pure oxygen.

Gas cutting has, compared to conventional mechanical cutting: the speed of cutting steel is faster than that of a blade movable mechanical cutting process, gas cutting can be economically realized for the cutting shape and the cutting thickness which are difficult to generate by a mechanical cutting method, the equipment cost is lower than that of a mechanical cutting tool, the equipment is portable and can be used on site, the cutting direction can be quickly changed within a very small radius range in the cutting process, a large metal plate can be quickly cut on site by moving a cutter instead of a metal block, and the process can be manually or automatically operated.

As with the traditional electric welding technology, workers also need to protect themselves during the gas cutting process, and particularly, once oxidized slag blown off by oxygen airflow contacts with inflammable materials during the gas cutting process, the high-temperature oxidized slag is easy to ignite the inflammable materials in a high-oxygen environment to cause fire and production accidents.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide the gas cutting torch with the safety protection device for steel structure processing, which is applied to manually operated small-sized cutting work, greatly reduces the possibility of splashing of oxidized slag, is difficult to ignite the inflammable and flat gas cutting site, is difficult to induce fire and is difficult to cause production accidents.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A gas cutting torch with a safety protection device for steel structure processing comprises a gas cutting torch main body, wherein the gas cutting torch main body comprises a handle, two ends of the handle are respectively and fixedly connected with a connecting part and a joint, one side of the connecting part, which is away from the handle, is provided with a cutting torch, a gas cutting pipe and a mixed gas pipe are fixedly connected between the cutting torch and the connecting part, the lower side of the connecting part is provided with an extension column, a connecting telescopic rod is connected between the extension column and the connecting part, the upper end of the connecting telescopic rod is fixedly connected with a threaded column, the connecting telescopic rod is in threaded connection with the threaded column, the lower end of the connecting telescopic rod is fixedly connected with a limiting disc, a limiting groove matched with the limiting disc is chiseled on the extension column, the connecting telescopic rod and the extension column are in rotating connection through the limiting disc, one end, which is away from the connecting telescopic rod, of the extension column is fixedly connected with a loading device, the loading device is positioned right lower side of the cutting torch, and the loading device is made of magnetic steel structure materials, the magnetism loading boat matched with the magnetism loading boat is placed in the loading device, the magnetism loading boat and the loading device are adsorbed mutually, the heat-resisting fiber cluster and the anti-splash net are fixedly connected in the magnetism loading boat, the anti-splash net is positioned on the lower side of the heat-resisting fiber cluster, liquid water is contained in the magnetism loading boat and does not pass through the anti-splash net, the loading device and the magnetism loading boat are provided with an outer steam through hole and an inner steam through hole which are matched with each other in position, the outer steam through holes and the inner steam through hole are both positioned between the heat-resisting fiber cluster and the anti-splash net, the anti-splash net comprises a net-shaped framework, a plurality of elastic fibers are fixedly connected in the net-shaped framework, the anti-splash device is applied to small-size cutting work of manual operation, the possibility that oxidized slag splashes is greatly reduced, the inflammable gunnervousness on a gas cutting site is difficult to ignite, the fire is difficult to induce, and the production accident is difficult to cause.

Furthermore, be connected with extension spring between connecting portion and the extension post, extension spring overlaps and establishes in the outside of connecting the telescopic link for the extension post has the trend to connecting portion motion all the time, makes loading attachment can hug closely the steel construction board, is difficult for causing the oxidizing slag to leak.

Further, fixed connection is realized through the hot melt adhesive between extension post and connecting portion at extension spring's both ends, can melt the hot melt adhesive through the air heater, makes things convenient for staff's installation and dismantlement.

Furthermore, the extension post is provided with a positioning pin, the connecting part is fixedly connected with a positioning hole matched with the positioning pin, and the extension post and the gas cutting torch are relatively fixed in position through the positioning hole and the positioning pin, so that the extension post is not easy to rotate in the cutting process.

Furthermore, the heat-resisting fiber cluster comprises a plurality of high-elasticity heat-resisting rubber fibers, the plurality of high-elasticity heat-resisting rubber fibers are mutually overlapped to form a plurality of gaps, and the capability of the heat-resisting fiber cluster for isolating water vapor is increased, so that the water vapor is not easy to penetrate through the heat-resisting fiber cluster to influence the normal cutting of the steel structure plate.

Furthermore, the hydrophobic coating is coated on the outer side of the high-elasticity heat-resistant rubber fiber, and water vapor can quickly drop after being condensed into water drops on the heat-resistant fiber cluster and returns to the outer steam through hole to play a role in heat dissipation again.

Furthermore, a plurality of elastic fibers are all three-dimensional heliciform, and adjacent elastic fibers twine together and form three-dimensional space structure, increase the holistic intensity of elastic fiber, after oxidation slag passed elastic fiber, elastic fiber can resume fast, plays the guard action again.

Furthermore, elastic fiber selects for use high heat conduction material to make for the heat of the oxidizing slag that contacts with elastic fiber can pass through elastic fiber fast and transmit to aquatic, makes elastic fiber be difficult for directly to ignite by oxidizing slag.

Furthermore, the upper end of the loading device is fixedly connected with a heat-resistant rubber pad matched with the loading device, so that the sealing effect between the loading device and a steel structure plate is improved, and the possibility of splashing of the oxidized slag is reduced.

Furthermore, the heat-resistant rubber pad is made of high-temperature-resistant rubber, so that the heat-resistant rubber pad is not easy to be ablated or ignited by oxidized slag and is not easy to induce safety accidents.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

this scheme is in normal use, under the effect of oxygen air current, heat-resisting fiber cluster is blown and is out of shape, give away an oxygen passageway, oxygen air current and oxidation slag can pass heat-resisting fiber cluster and fall on splashproof net and liquid water, under the effect of liquid water, can cool off above-mentioned oxidation slag fast, and produce a large amount of vapor, because there is high-pressure oxygen air current to pass through in the passageway that the splashproof net formed, above-mentioned vapor can't flow back from splashproof net interval, can only escape from outer steam through-hole and interior steam through-hole, reduce the influence to steel structural slab gas cutting, reduce the possibility that oxidation slag splashes by a wide margin, the flammable wuping that is difficult for lighting the gas cutting scene, be difficult for inducing the conflagration, be difficult for causing the production accident.

The structure of the connecting telescopic rod and the extending column in the scheme is an optional structure, when the construction environment has no inflammable articles and workers are protected in place, the workers can directly utilize the gas cutting torch to perform gas cutting work, and when still articles exist in the construction environment or the protection conditions of the workers are poor, the protection device of the scheme can be selected, firstly, the stretching spring is sleeved outside the connecting telescopic rod, the connecting telescopic rod and the extending column are assembled to the lower side of the gas cutting torch by utilizing the threaded column, then, the two ends of the stretching spring are respectively and fixedly connected with the connecting part and the extending column by utilizing the hot melt adhesive, then, the extending column is fixed by utilizing the positioning hole and the positioning pin in a rotating way, finally, the magnetic loading boat is assembled in the loading device to complete the preparation work, when the cutting is needed, the extending column is pulled downwards, so that the extending column and the cutting nozzle are respectively positioned at two sides of the steel structure plate, the subsequent operation steps are consistent with the existing gas cutting, the operation is convenient, and the switching and the use of workers are easy.

Drawings

FIG. 1 is an exploded view of the principal construction of a gas cutting torch of the present invention equipped with a protective device;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of a gas cutting torch equipped with a guard of the present invention;

FIG. 4 is a side view of a gas cutting torch of the present invention equipped with a guard;

FIG. 5 is a schematic view of a partial structure of the protection device of the present invention at the connection point of the telescopic rod;

FIG. 6 is a schematic view of the magnetic boat according to the present invention;

FIG. 7 is a schematic view of a partial structure of the splash guard of the present invention;

FIG. 8 is a schematic representation of the structure of an elastic fiber of the present invention;

FIG. 9 is a schematic cross-sectional view of the protection apparatus for a gas cutting torch according to the present invention;

FIG. 10 is a schematic view of a conventional gas cutting torch.

The reference numbers in the figures illustrate:

1 connecting telescopic rod, 2 threaded columns, 3 limiting discs, 4 extending columns, 5 limiting grooves, 6 stretching springs, 7 positioning holes, 8 positioning pins, 9 loading devices, 10 heat-resistant rubber pads, 11 outer steam through holes, 12 magnetic loading boats, 13 inner steam through holes, 14 heat-resistant fiber clusters, 15 splash-proof nets, 1501 net-shaped frameworks and 1502 elastic fibers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is to be understood that the embodiments described are merely exemplary embodiments, rather than exemplary embodiments, and that all other embodiments may be devised by those skilled in the art without departing from the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-8 and 10, a gas cutting torch with a safety protection device for steel structure processing comprises a gas cutting torch main body, the gas cutting torch main body comprises a handle, two ends of the handle are respectively and fixedly connected with a connecting part and a joint, one side of the connecting part away from the handle is provided with a cutting nozzle, a gas cutting gas pipe and a mixed gas pipe are fixedly connected between the cutting nozzle and the connecting part, it is worth noting that transmission pipes are embedded in the handle and the connecting part and used for connecting the joint with the cutting gas pipe and the mixed gas pipe, an extension column 4 is arranged at the lower side of the connecting part, a connecting telescopic rod 1 is connected between the extension column 4 and the connecting part, a threaded column 2 is fixedly connected at the upper end of the connecting telescopic rod 1, the connecting telescopic rod 1 is in threaded connection with the threaded column 2, a limit disc 3 is fixedly connected at the lower end of the connecting telescopic rod 1, a limit groove 5 matched with the limit disc 3 is chiseled on the extension column 4, the connecting telescopic rod 1 and the extending column 4 are rotatably connected with the extending column 4 through a limiting disc 3, one end of the extending column 4, far away from the connecting telescopic rod 1, is fixedly connected with a loading device 9, the loading device 9 is positioned at the right lower side of a cutting nozzle, the loading device 9 is made of a magnetic steel structure material, a magnetic loading boat 12 matched with the loading device is arranged in the loading device 9, the magnetic loading boat 12 and the loading device 9 are adsorbed, a heat-resistant fiber cluster 14 and a splash-proof net 15 are fixedly connected in the magnetic loading boat 12, the splash-proof net 15 is positioned at the lower side of the heat-resistant fiber cluster 14, liquid water is contained in the magnetic loading boat 12 and does not cover the splash-proof net 15, the loading device 9 and the magnetic loading boat 12 are provided with an outer steam through hole 11 and an inner steam through hole 13 which are mutually matched in position, the outer steam through holes 11 and the inner steam through holes 13 are positioned between the heat-resistant fiber cluster 14 and the splash-proof net 15, the splash-proof net 15 comprises a net skeleton 1501, a plurality of elastic fibers 1502 are fixedly connected to the plurality of mesh skeletons 1501.

Referring to fig. 9, during gas cutting, the steel structural plate is first burned to red by using the preheating flame of acetylene combustion, and then the red steel structural plate is ignited by using the high-pressure oxygen flow, and the burned oxide slag is blown to the lower side of the steel structural plate under the action of the oxygen flow;

under the action of oxygen airflow, the heat-resistant fiber clusters 14 are blown and deformed to form an oxygen channel, the oxygen airflow and the oxidized slag can pass through the heat-resistant fiber clusters 14 and fall onto the splash-proof net 15 and the liquid water, under the action of the liquid water, the oxidized slag can be rapidly cooled and generate a large amount of water vapor, and because high-pressure oxygen airflow passes through the channel formed by the splash-proof net 15, the water vapor cannot flow back from the gap of the splash-proof net 15 and can only escape from the outer steam through holes 11 and the inner steam through holes 13, so that the influence on gas cutting of the steel structure plate is reduced.

It is worth noting that the present solution is applied to the existing gas cutting torch operated manually, and after one cutting operation is completed, the magnetic loading boat 12 needs to be replaced by a technician in time, or the technician can continue to use the gas cutting torch by adding liquid water again.

Greatly reduces the possibility of splashing of the oxidized slag, is not easy to ignite the inflammable and violent in gas cutting sites, is not easy to induce fire disasters and is not easy to cause production accidents.

Please refer to fig. 1-6, an extension spring 6 is connected between the connecting portion and the extension column 4, the extension spring 6 is sleeved outside the connecting telescopic rod 1, so that the extension column 4 always tends to move toward the connecting portion, the loading device 9 can be tightly attached to the steel structure plate, and the oxidized slag is not easily leaked, fixed connection is realized between the two ends of the extension spring 6 and the connecting portion and the extension column 4 through hot melt adhesive, the hot melt adhesive can be melted through an air heater, thereby facilitating installation and disassembly of workers, a positioning pin 8 is chiseled on the extension column 4, a positioning hole 7 matched with the positioning pin 8 is fixedly connected on the connecting portion, relative fixation of the positions between the extension column 4 and the gas cutting torch is realized through the positioning hole 7 and the positioning pin 8, and the extension column 4 is not easily rotated in the cutting process.

Referring to fig. 6 to 7, the heat-resistant fiber bundle 14 includes a plurality of high-elasticity heat-resistant rubber fibers, the plurality of high-elasticity heat-resistant rubber fibers are overlapped with each other to form a plurality of gaps, so that the ability of the heat-resistant fiber bundle 14 to isolate water vapor is increased, the water vapor is not easy to pass through the heat-resistant fiber bundle 14 to affect the normal cutting of the steel structural plate, a hydrophobic coating is coated on the outer side of the high-elasticity heat-resistant rubber fibers, the water vapor is condensed into water drops on the heat-resistant fiber bundle 14 and then quickly drips back into the outer steam through hole 11 to play a role in dissipating heat again, the plurality of elastic fibers 1502 are all in a three-dimensional spiral shape, adjacent elastic fibers 1502 are wound together to form a three-dimensional space structure, the overall strength of the elastic fibers 1502 is increased, after oxide slag passes through the elastic fibers, the elastic fibers 1502 can be quickly recovered to play a role in protection again, the elastic fibers are made of high-thermal conductivity material 1502, so that heat from the oxidized slag in contact with the elastic fibers 1502 may be quickly transferred through the elastic fibers 1502 into the water, making the elastic fibers 1502 less likely to be ignited by the oxidized slag directly.

The upper end of the loading device 9 is fixedly connected with a heat-resistant rubber pad 10 matched with the loading device, the sealing effect between the loading device 9 and the steel structure plate is improved, the possibility of splashing of the oxidized slag is reduced, and the heat-resistant rubber pad 10 is made of high-temperature-resistant rubber, so that the heat-resistant rubber pad 10 is not easy to be ablated or ignited by the oxidized slag, and safety accidents are not easy to be induced.

In the normal use process, under the action of oxygen airflow, the heat-resistant fiber clusters 14 are blown and deformed to form an oxygen channel, the oxygen airflow and the oxidized slag can pass through the heat-resistant fiber clusters 14 and fall onto the splash-proof net 15 and the liquid water, under the action of the liquid water, the oxidized slag can be rapidly cooled and generate a large amount of water vapor, because high-pressure oxygen airflow passes through the channel formed by the splash-proof net 15, the water vapor cannot flow back from gaps of the splash-proof net 15 and can only escape from the outer steam through holes 11 and the inner steam through holes 13, the influence on the gas cutting of the steel structural plate is reduced, the possibility of oxidizing and splashing is greatly reduced, the slag is difficult to ignite, the flammability and fire hazard on the gas cutting site is difficult to induce, and the production accident is difficult to cause.

It is worth noting that the structure of the connection telescopic rod 1 and the extension column 4 in the scheme is an optional structure, when the construction environment has no inflammable matter and the worker protects in place, the worker can directly use the gas cutting torch to perform gas cutting work, and when the construction environment has still matter or the protection condition of the worker is poor, the protection device of the scheme can be selected, firstly, the extension spring 6 is sleeved on the outer side of the connection telescopic rod 1, the connection telescopic rod 1 and the extension column 4 are assembled to the lower side of the gas cutting torch by using the threaded column 2, then, the two ends of the extension spring 6 are respectively fixedly connected with the connection part and the extension column 4 by using the hot melt adhesive, then, the rotation of the extension column 4 is fixed by using the positioning hole 7 and the positioning pin 8, finally, the magnetic loading boat 12 is assembled in the loading device 9 to complete the preparation work, when the cutting is needed, the extension column 4 is pulled downwards, so that the extending column 4 and the cutting nozzle are respectively positioned at two sides of the steel structure plate, and the subsequent operation steps are consistent with the existing gas cutting.

And when needs will connect telescopic link 1 and extend structures such as post 4 and dismantle, need melt above-mentioned hot melt adhesive now, contact extension spring 6 and connecting portion and extend the be connected between the post 4, later remove the be connected between connecting portion and the screw thread post 2 and can realize demolising the work, convenient operation easily staff switches the use.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a gas cutting torch is used in steel construction processing with safety arrangement, includes gas cutting torch main part, gas cutting torch main part includes the handle, the both ends difference fixedly connected with connecting portion and the joint of handle, one side that the handle was kept away from to connecting portion is equipped with the cutting torch, fixedly connected with gas cutting trachea and mixed gas pipe, its characterized in that between cutting torch and the connecting portion: the lower side of the connecting part is provided with an extension column (4), a connecting telescopic rod (1) is connected between the extension column (4) and the connecting part, a threaded column (2) is fixedly connected to the upper end of the connecting telescopic rod (1), the connecting telescopic rod (1) is in threaded connection with the threaded column (2), a lower end of the connecting telescopic rod (1) is fixedly connected with a limiting disc (3), a limiting groove (5) matched with the limiting disc (3) is formed in the extension column (4), the connecting telescopic rod (1) and the extension column (4) are rotatably connected with the extension column (4) through the limiting disc (3), one end, far away from the connecting telescopic rod (1), of the extension column (4) is fixedly connected with a loading device (9), the loading device (9) is located on the lower side of the cutting nozzle, the loading device (9) is made of a magnetic steel structure material, a magnetic loading boat (12) matched with the loading device (9) is placed in the loading device (9), the magnetic loading boat (12) is adsorbed by the loading device (9), a heat-resistant fiber cluster (14) and a splash-proof net (15) are fixedly connected into the magnetic loading boat (12), the splash-proof net (15) is positioned on the lower side of the heat-resistant fiber cluster (14), liquid water is contained in the magnetic loading boat (12) and passes through the splash-proof net (15), outer steam through holes (11) and inner steam through holes (13) which are mutually matched in position are formed in the loading device (9) and the magnetic loading boat (12), the outer steam through holes (11) and the inner steam through holes (13) are both positioned between the heat-resistant fiber cluster (14) and the splash-proof net (15), the splash-proof net (15) comprises a net-shaped framework (1501), and a plurality of elastic fibers (1502) are fixedly connected into the net-shaped frameworks (1501);

an extension spring (6) is connected between the connecting part and the extension column (4), and the extension spring (6) is sleeved on the outer side of the connecting telescopic rod (1);

and the two ends of the extension spring (6) are fixedly connected with the connecting part and the extension column (4) through hot melt adhesives.

2. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 1, wherein: the extension post (4) is provided with a positioning pin (8), and the connecting part is fixedly connected with a positioning hole (7) matched with the positioning pin (8).

3. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 1, wherein: the heat-resistant fiber cluster (14) comprises a plurality of high-elasticity heat-resistant rubber fibers which are mutually overlapped to form a plurality of gaps.

4. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 3, wherein: the outer side of the high-elasticity heat-resistant rubber fiber is coated with a hydrophobic coating.

5. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 1, wherein: a plurality of the elastic fibers (1502) are in a three-dimensional spiral shape, and the adjacent elastic fibers (1502) are wound together to form a three-dimensional space structure.

6. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 1, wherein: the elastic fibers (1502) are made of high heat conduction materials.

7. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 1, wherein: the upper end of the loading device (9) is fixedly connected with a heat-resistant rubber pad (10) matched with the loading device.

8. The gas cutting torch for processing the steel structure with the safety protection device as claimed in claim 7, wherein: the heat-resistant rubber pad (10) is made of high-temperature-resistant rubber.