CN209902462U - Portable safety welding pen - Google Patents
Portable safety welding pen Download PDFInfo
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- CN209902462U CN209902462U CN201920488320.4U CN201920488320U CN209902462U CN 209902462 U CN209902462 U CN 209902462U CN 201920488320 U CN201920488320 U CN 201920488320U CN 209902462 U CN209902462 U CN 209902462U
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Abstract
The utility model discloses a portable safety welding pen, which comprises a cylindrical pen tube, a spray tube, a top cover, a bottom cover and a lead wire; a top supporting ring column, a top piston, a thermite layer, a combustion improver layer, a bottom piston in a circular ring column shape, a bottom supporting ring column and a bottom supporting column which are coaxially arranged with the pen tube are arranged in the pen tube from top to bottom; the side wall of the bottom support ring column is provided with a communicating hole with a central axis vertical to the central axis of the spray pipe, and the inside of the bottom support ring column in the spray pipe, the outside of the bottom support ring column in the spray pipe and the inside of the spray pipe are all filled with ignition agents; the lead wire is embedded in the ignition agent of the spray pipe and a part of the lead wire is positioned outside the nozzle of the spray pipe. When the ignition agent, the combustion improver layer and the thermite layer in the pen tube are combusted by igniting the lead, the top piston moves upwards, the bottom piston moves downwards and enables the inner hole of the pen tube to be communicated with the inner hole of the spray tube, and at the moment, high-temperature molten fluid is sprayed out through the nozzle of the spray tube to realize welding.
Description
Technical Field
The utility model belongs to the technical field of the welding cutting, a portable welding pen of steel material welding cutting usefulness under emergent condition is related to.
Background
The welding technology is one of the important means for manufacturing industrial, civil and military equipment, building steel structures, first-aid repair and emergency maintenance and installation, but the currently widely adopted shielded metal arc welding needs a power supply capable of outputting more than kilowatt power and a heavy electric welding machine, gas welding needs high-voltage special equipment for storing oxygen and acetylene gas, the involving engineering is large, and an operator needs special training. This greatly limits the flexible, flexible and efficient expansion of emergency repair and welding tasks under special conditions such as power failure, field, rain and snow weather. In addition, under the extreme conditions of inconvenient energy supply such as high altitude, underground, underwater and the like, the traditional emergency maintenance methods cannot be applied. Meanwhile, in the emergency maintenance of water-gas pipelines, heating pipe networks and engineering cables, a convenient emergency welding method is urgently needed for rapidly recovering in situ or partially recovering the use function; in the emergency rescue and the fire relief of earthquake, fire and the like and the fire breaking and dismantling, a cutting tool which does not need external energy and equipment and is convenient to use is urgently needed.
The patent with publication number CN2920508Y discloses a pocket welding pen, which comprises a pen tube, a medicine cartridge filled with medicine is arranged in the pen tube, and two ends of the medicine cartridge are provided with conical combustion-supporting covers connected with the medicine cartridge; the front end of the pen tube is provided with a fire-leading head, and the rear end is provided with a flame-retardant head; an ignition section filled with an ignition agent is arranged between the ignition head and the conical combustion-supporting cover, and a protective sleeve is arranged at the end of the pen tube. The welding is completed only by the fire source triggering the chemical reaction of the medicament contained in the welding gun, the operation is convenient, and the structure is simple.
The patent with the publication number of CN102699521A discloses a simple electroless welding pen, including pencil, welding flux and lead wire, its characterized in that, the welding flux that sets up in the pencil is the thermite, and the one end of pencil is provided with the lead wire, is provided with the section of igniting between lead wire and the thermite, and the other end of pencil is provided with the end cap, and the end cap seals the pencil, and the outside of pencil is provided with the pen container, and the internal diameter of pen container is greater than pencil external diameter 1mm, and the length of pen container is greater than pencil length 4mm, and the internal diameter and the end cap of pen container cooperate. The thermite comprises, by mass, 60-70% of CuO powder, 15-20% of Al powder and KClO32-4% of powder and 1-2% of KNO3+ S + C mixed powder; CaF24-6% of powder, CaSO44-6% of powder; 1-2% of Fe powder and 1-2% of Mn powder; the KNO3The + S + C mixed powder is KNO3And any mixture of S and C. The thermite consists of a heat releasing agent, a slagging agent and an alloying agent 3, wherein the heat releasing agent consists of CuO powder, Al powder and KClO3Powder and KNO 1-2%3+ S + C mixed powder; the composition of the slag former is CaF2Powder and CaSO4Powder; the alloying agent consists of Fe powder and Mn powder.
Special for publication No. CN102151982AThe portable welding pen comprises a powder tube, thermite is filled in the powder tube, an ignition head is arranged at the head of the powder tube, a ignition section is arranged between the ignition head and the thermite, and the tail of the powder tube is sealed by a clamping end with an external thread at one end; the ignition head comprises red phosphorus, the ignition section adopts thermite welding ignition powder, the thermite comprises a heat release agent, a slagging agent and an alloying agent, and the heat release agent comprises the following components: 60-70 wt% of CuO powder and 15-20 wt% of Al powder; the slag former comprises the following components: CaF24-8 wt% of powder, CaSO45-7 wt% of powder; the alloying agent comprises the following components: 1-3 wt% of manganese iron powder and 2-4 wt% of nickel iron powder. When the welding pen is used, the pen container is pulled out and screwed on the clamping end, the pen container is held by hands, and the front end point of the welding pen is ignited to weld and cut a workpiece. The welding pen is low in manufacturing cost, small and portable, and is particularly suitable for welding and cutting operation of steel and copper materials in emergency.
The patent with publication number CN205342210U discloses a friction ignition welding pen, which belongs to the technical field of welding and cutting. The powder injection device comprises a powder tube, wherein the tail part of the powder tube is sealed by a clamping end with external threads, a thermite, an ignition section and a friction ignition device are sequentially filled on the clamping end in the powder tube, thermite welding ignition powder is adopted in the ignition section, the friction ignition device is composed of glass powder, a galling copper wire, a sealing wafer and a stay wire, the galling copper wire penetrates through the glass powder, one end of the galling copper wire is connected with the ignition section, the other end of the galling copper wire penetrates through the sealing wafer to be connected with the stay wire, and the powder tube is sealed by safety paper outside the stay wire; the pen container is used for being sleeved outside the medicine tube, one end of the pen container is provided with an internal thread matched with the external thread of the clamping end, and the other end of the pen container is sealed. When the device is used, the medicine tube is pulled out of the pen container, the pen container is screwed on the clamping end, the pen container is held by hands, the safety paper is poked, the pull wire is pulled out quickly, and the thermite is ignited, so that the workpiece can be welded and cut.
The portable welding pen in the prior art has the defects that the use is unsafe, the welding flux is combusted in a fixed space, and the pressure of molten fluid sprayed out after the welding flux is combusted is low, so that the cutting capability of the welding pen is poor, and the welding pen is not suitable for emergency requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable safe welding pen to the not enough of prior art.
A portable safety welding pen comprises a cylindrical pen tube, a spray tube, a top cover, a bottom cover and a lead; the top cover is arranged at the top end of the pen tube; the radial inner peripheral surface of the pen tube and the radial inner peripheral surface of the spray pipe are respectively provided with a first ceramic heat insulation layer and a second ceramic lining layer; the bottom cover is arranged at the bottom end of the pen tube; the spray pipe is arranged on the side wall of the bottom end of the pen tube and is close to the top surface of the bottom cover; a top supporting ring column, a top piston, a thermite layer, a combustion improver layer, a bottom piston in a circular ring column shape, a bottom supporting ring column and a bottom supporting column which are coaxially arranged with the pen tube are arranged in the pen tube from top to bottom; the central axis of the spray pipe is flush with the middle part of the bottom support ring column; the side wall of the bottom support ring column is provided with a communicating hole with a central axis vertical to the central axis of the spray pipe, and the inside of the bottom support ring column in the spray pipe, the outside of the bottom support ring column in the spray pipe and the inside of the spray pipe are all filled with ignition agents; the thickness of the top supporting ring column is smaller than that of the bottom supporting ring column; the central axis of the spray pipe is vertical to the central axis of the pen tube, the lead is embedded in the ignition agent of the spray pipe, and a part of the lead is positioned outside the nozzle of the spray pipe; the top surface of the top supporting ring column is positioned above the top surface of the pen tube; the bottom surface of the pen tube is positioned between the bottom surface of the bottom support column and the top surface of the bottom support column. The top piston and the bottom piston are made of ceramics; the top end and the bottom end of the pen tube are provided with threads, the bottom cover and the top cover are respectively internally provided with threads matched with the threads at the top end and the bottom end of the pen tube, and the bottom cover and the top cover are in threaded connection with the pen tube; a heat insulation layer is arranged between the threads at the top end of the pen tube and the threads at the bottom end of the pen tube on the radial outer peripheral surface of the pen tube; when the ignition agent, the combustion improver layer and the thermite layer in the pen tube are combusted by igniting the lead, the top piston moves upwards, and the bottom piston moves downwards and enables the inner hole of the pen tube to be communicated with the inner hole of the spray tube.
The utility model has the advantages that: when the ignition agent, the combustion improver layer and the thermite layer in the pen tube are combusted by igniting the lead, the top piston moves upwards, the bottom piston moves downwards and enables the inner hole of the pen tube to be communicated with the inner hole of the spray tube, and at the moment, high-temperature molten fluid is sprayed out through the inner hole of the spray tube. The top piston and the bottom piston move to provide a variable space for the combustion and energy accumulation of the thermite layer, the high-temperature molten fluid is sprayed out quickly, and cutting or welding can be realized. After welding or cutting, the powder can be reused after charging. A heat insulation layer is arranged between the threads at the top end of the pen tube and the threads at the bottom end of the pen tube on the radial outer peripheral surface of the pen tube, a first ceramic heat insulation layer and a second ceramic inner lining layer are respectively arranged on the radial inner peripheral surface of the pen tube and the radial inner peripheral surface of the spray pipe, and the top piston and the bottom piston block heat from being transferred to the top cover and the bottom cover, so that a certain protection effect is achieved for an operator.
As a preferred technical scheme, magnesium strips penetrate through the space between the thermite layer and the combustion improver layer. The nozzle of the spray pipe and the outer part of the nozzle of the lead are sealed by a moisture-proof adhesive tape.
As a preferred technical scheme, the pen tube is provided with a spray tube connecting hole, and the spray tube is in threaded connection with the spray tube connecting hole of the pen tube. By adopting the technical scheme, the spray pipe is convenient to replace.
As the preferred technical scheme, a pen clip is connected below the spray pipe. By adopting the technical scheme, the pen tube is convenient to carry, and the pen clip can be used as a lever to facilitate the disassembly and assembly of the spray tube.
According to the preferable technical scheme, a blind hole with a downward opening is formed in the bottom surface of the combustion improver layer, the blind hole and the central axis of the inner hole of the bottom piston are in the same straight line, and the diameters of the blind hole and the inner hole of the bottom piston are the same; the diameter of the inner hole of the bottom piston is not less than one fourth of the diameter of the inner hole of the pen tube. By adopting the technical scheme, the combustion improver layer is convenient to be ignited.
As a preferred technical scheme, the pen tube is an iron pen tube.
As a preferred technical scheme, the outer diameters of the top piston, the bottom piston and the bottom support column are slightly smaller than the inner diameter of the pen tube.
As the preferred technical scheme, the bottom supporting ring column and the top supporting ring column are both iron bottom supporting ring columns and iron top supporting ring columns.
As the preferred technical scheme, a nozzle of the spray pipe is connected with a moisture-proof cover.
As the preferred technical scheme, the bottom support columns are made of ceramics.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the portable welding pen of the present invention.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a partially enlarged view of a portion B of fig. 1.
Fig. 4 is a partially enlarged view of a portion C of fig. 1.
Fig. 5 is a partially enlarged view of a portion D of fig. 4.
Fig. 6 is a schematic illustration of the portable welding pen of fig. 1 after combustion of the agent.
Fig. 7 is a partially enlarged view of a portion E of fig. 6.
Fig. 8 is a partially enlarged view of a portion F of fig. 6.
Fig. 9 is a partially enlarged view of a portion G of fig. 6.
Fig. 10 is a schematic structural view of a preferred embodiment of the portable welding pen of the present invention.
Fig. 11 is a partially enlarged view of a portion H of fig. 10.
Fig. 12 is a schematic structural view of a preferred embodiment of the portable welding pen of the present invention.
Fig. 13 is a partially enlarged view of a portion I of fig. 12.
A pen tube-1; a spray pipe-2; a top cover-3; a bottom cover-4; a bottom support ring column-5; a top support ring column-6; a top piston-7; thermite layer-8; combustion improver layer-9; a bottom piston-10; ignition aid-11; a bottom support pillar-12; a lead-13; magnesium strip-14; a blind hole-15; inner bore-16 of bottom piston; a first ceramic thermal insulation layer-17; a pen clip-18; a thermal insulation layer-19; a moisture-proof cover-20; moisture-proof adhesive tape-21; a communicating hole-22; a second ceramic liner layer-23.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1. As shown in fig. 1-9, a portable safety welding pen comprises a cylindrical pen tube 1, a nozzle 2, a top cover 3, a bottom cover 4 and a lead 13; the top cover 3 is arranged at the top end of the pen tube 1; the radially inner peripheral surface of the pen barrel 1 and the radially inner peripheral surface of the nozzle 2 are provided withThe heat-releasing pen is characterized in that the heat-releasing pen comprises a first ceramic heat-insulating layer 17 and a second ceramic inner lining layer 23, a bottom cover 4 is installed at the bottom end of a pen tube 1, a spray tube 2 is installed on the side wall of the bottom end of the pen tube 1 and is close to the top surface of the bottom cover 4, a top supporting ring column 6, a top piston 7, an aluminothermic layer 8, a combustion improver layer 9, a circular ring column-shaped bottom piston 10, a bottom supporting ring column 5 and a bottom supporting column 12 are arranged in the pen tube 1 from top to bottom, the central axis of the spray tube 2 is flush with the middle of the bottom supporting ring column 5, a communication hole 22 with the central axis vertical to the central axis of the spray tube 2 is arranged on the side wall of the bottom supporting ring column 5, a combustion improver 11 is arranged in the inside of the bottom supporting ring column 5 of the spray tube 2, a top supporting ring column 6 is thinner than the bottom supporting ring column 5, the central axis of the spray tube 2 is vertical to the central axis of the pen tube 1, a lead 13 is embedded in the combustion improver 11 of the spray tube 2 and is partially positioned outside a spray nozzle 2, a heat-releasing nozzle 2 is arranged on the top of the spray tube 1, a heat-releasing pen tube 2, a lead wire is arranged on the top end of the top piston 1, a heat-releasing pen tube, a heat-releasing piston is arranged by adopting a heat-releasing piston, a heat 24 ~ 8wt% of powder, CaSO 45 ~ 7wt% of powder, wherein the alloying agent comprises 1 ~ 3wt% of manganese iron powder and 2 ~ 4wt% of nickel iron powder, the CuO powder is industrial copper scrap, the oxidation rate is 70 ~ 80%, the content of Mn in the manganese iron powder is 88wt%, the content of Fe in the manganese iron powder is 10wt%, the balance is impurities, the content of Ni in the nickel iron powder is 55wt%, the content of Fe in the nickel iron powder is 43wt%, and the balance is impuritiesThe method comprises the steps of adopting commercial Schmidt welding special ignition powder as a combustion improver between 150 meshes of ~ 200 meshes of 200 meshes, enabling the ignition improver to be consistent in composition of agents used by common matches, using huge heat released by combustion of an thermite as a welding heat source during working, using generated alloy as deposited metal to complete welding between workpieces, enabling a welding pen combustion flame to be tightly attached to a position to be cut during cutting, melting the metal by using huge heat released by thermite reaction generated by thermite reaction, flushing the melted metal by using airflow generated by the reaction, completing cutting, enabling the length of a pen tube to be 200 mm and 300mm, enabling the diameter of the pen tube to be 15-20mm, enabling an ignition agent 11, a combustion improver layer 9 and a thermite layer 8 in the pen tube 1 to be combusted by igniting a lead 13, enabling a top piston 7 to move upwards, enabling a bottom piston 10 to move downwards, enabling an inner hole of the pen tube 1 to be communicated with an inner hole of the nozzle 2, enabling high-temperature molten fluid to be sprayed out from the top piston 7 and the bottom piston 10 through the nozzle 2 to move, providing a space for combustion improver layer 8 and energy accumulation, enabling the high-temperature molten fluid to be sprayed out to achieve radial direction, enabling the high-temperature fluid to be capable of achieving the effect of cutting of the ceramic top end of the pen tube 1, the ceramic rod, the ceramic top end of the ceramic rod, the ceramic.
The pen tube 1 is provided with a spray tube connecting hole, and the spray tube 2 is in threaded connection with the spray tube connecting hole of the pen tube 1. By adopting the technical scheme, the spray pipe 2 is convenient to replace.
A pen clip 18 is connected below the nozzle 2. By adopting the technical scheme, the pen tube 1 is convenient to carry, and the pen clip 18 can be used as a lever to facilitate the disassembly and assembly of the spray tube 2.
A blind hole 15 with a downward opening is formed in the bottom surface of the combustion improver layer 9, the blind hole 15 and the central axis of an inner hole 16 of the bottom piston are on the same straight line, and the diameters of the blind hole 15 and the inner hole 16 of the bottom piston are the same; the diameter of the inner hole 16 of the bottom piston is not less than one fourth of the diameter of the inner hole of the pen tube 1. With this technical solution, the combustion improver layer 9 is convenient to be ignited.
The pen tube 1 is an iron pen tube 1.
The outer diameters of the top piston 7, the bottom piston 10 and the bottom support column 12 are slightly smaller than the inner diameter of the pen tube 1.
The bottom support ring column 5 and the top support ring column 6 are both iron bottom support ring column 5 and iron top support ring column 6.
The bottom support columns 12 are ceramic bottom support columns 12; the bottom surface of the pen barrel 1 is located between the bottom surface of the bottom support pillar 12 and the top surface of the bottom support pillar 12.
Example 2. As shown in fig. 10 to 11, the present embodiment is different from embodiment 1 in that: magnesium strips 14 penetrate between the thermite layer 8 and the combustion improver layer 9.
Example 3. As shown in fig. 12 to 13, the present embodiment is different from embodiment 1 in that: a moisture-proof cover 20 is attached to the spout of the spout 2.
The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the relevant art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. A portable safety welding pen is characterized in that: comprises a circular cylindrical pen tube (1), a spray tube (2), a top cover (3), a bottom cover (4) and a lead (13); the top cover (3) is arranged at the top end of the pen tube (1); the bottom cover (4) is arranged at the bottom end of the pen tube (1); the spray pipe (2) is arranged on the side wall of the bottom end of the pen tube (1) and is close to the top surface of the bottom cover (4); a top supporting ring column (6), a top piston (7), a thermite layer (8), a combustion improver layer (9), a circular cylindrical bottom piston (10), a bottom supporting ring column (5) and a bottom supporting column (12) which are coaxially arranged with the pen tube (1) are arranged in the pen tube (1) from top to bottom; the radial inner peripheral surface of the pen tube (1) and the radial inner peripheral surface of the spray tube (2) are respectively provided with a first ceramic heat insulation layer (17) and a second ceramic lining layer (23); the central axis of the spray pipe (2) is flush with the middle part of the bottom support ring column (5); a communicating hole (22) with a central axis vertical to the central axis of the spray pipe (2) is arranged on the side wall of the bottom support ring column (5), and ignition agents (11) are respectively filled in the spray pipe (2), the inside of the bottom support ring column (5), the outside of the bottom support ring column (5) and the inside of the spray pipe (2); the thickness of the top supporting ring column (6) is smaller than that of the bottom supporting ring column (5); the central axis of the spray pipe (2) is vertical to the central axis of the pen tube (1), the lead wire (13) is embedded in the ignition agent (11) of the spray pipe (2), and one part of the lead wire is positioned outside the nozzle of the spray pipe (2); the top surface of the top supporting ring column (6) is positioned above the top surface of the pen tube (1); the bottom surface of the pen tube (1) is positioned between the bottom surface of the bottom supporting column (12) and the top surface of the bottom supporting column (12); the top piston (7) and the bottom piston (10) are made of ceramics, and the top piston (7) and the bottom piston (10) are made of ceramics; the top end and the bottom end of the pen tube (1) are provided with threads, the bottom cover (4) and the top cover (3) are respectively provided with threads matched with the threads at the top end and the bottom end of the pen tube (1), and the bottom cover (4) and the top cover (3) are in threaded connection with the pen tube (1); a heat insulation layer (19) is arranged between the threads at the top end of the pen tube (1) and the threads at the bottom end of the pen tube (1) on the radial outer peripheral surface of the pen tube (1); when the ignition agent (11), the combustion improver layer (9) and the thermite layer (8) in the pen tube (1) are combusted by igniting the lead (13), the top piston (7) moves upwards, and the bottom piston (10) moves downwards and enables the inner hole of the pen tube (1) to be communicated with the inner hole of the spray tube (2).
2. A portable safety welding pen as defined in claim 1, wherein: magnesium strips (14) penetrate between the thermite layer (8) and the combustion improver layer (9); the nozzle of the spray pipe (2) and the nozzle outer part of the lead wire are sealed by a moisture-proof adhesive tape (21).
3. A portable safety welding pen as defined in claim 1, wherein: the pen tube (1) is provided with a spray tube connecting hole, and the spray tube (2) is in threaded connection with the spray tube connecting hole of the pen tube (1).
4. A portable safety welding pen as defined in claim 3, wherein: the pen tube (1) is an iron pen tube (1).
5. A portable safety welding pen as defined in claim 1, wherein: a blind hole (15) with a downward opening is formed in the bottom surface of the combustion improver layer (9), the blind hole (15) and the central axis of an inner hole (16) of the bottom piston are on the same straight line, and the diameters of the blind hole (15) and the inner hole (16) of the bottom piston are the same; the diameter of the inner hole (16) of the bottom piston is not less than one fourth of the diameter of the inner hole of the pen tube (1).
6. A portable safety welding pen as defined in claim 1, wherein: the outer diameters of the top piston (7), the bottom piston (10) and the bottom support column (12) are slightly smaller than the inner diameter of the pen tube (1).
7. A portable safety welding pen as defined in claim 1, wherein: the bottom supporting ring column (5) and the top supporting ring column (6) are both iron bottom supporting ring columns (5) and iron top supporting ring columns (6).
8. A portable safety welding pen as defined in claim 1, wherein: a pen clip (18) is connected below the spray pipe (2).
9. A portable safety welding pen as defined in claim 1, wherein: the spout of the spray pipe (2) is connected with a moisture-proof cover (20).
10. A portable safety welding pen as defined in claim 1, wherein: the bottom support column (12) is a ceramic bottom support column (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488320.4U CN209902462U (en) | 2019-04-11 | 2019-04-11 | Portable safety welding pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488320.4U CN209902462U (en) | 2019-04-11 | 2019-04-11 | Portable safety welding pen |
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| CN209902462U true CN209902462U (en) | 2020-01-07 |
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| CN201920488320.4U Active CN209902462U (en) | 2019-04-11 | 2019-04-11 | Portable safety welding pen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865934A (en) * | 2019-04-11 | 2019-06-11 | 侯亿康 | A kind of portable secured weldering pen |
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2019
- 2019-04-11 CN CN201920488320.4U patent/CN209902462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865934A (en) * | 2019-04-11 | 2019-06-11 | 侯亿康 | A kind of portable secured weldering pen |
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