CN116182406A - Explosion-proof type hot air gun - Google Patents
Explosion-proof type hot air gun Download PDFInfo
- Publication number
- CN116182406A CN116182406A CN202211700327.0A CN202211700327A CN116182406A CN 116182406 A CN116182406 A CN 116182406A CN 202211700327 A CN202211700327 A CN 202211700327A CN 116182406 A CN116182406 A CN 116182406A
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- China
- Prior art keywords
- explosion
- proof
- shell
- heat gun
- hot air
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0423—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between hand-held air guns
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/124—Preventing or detecting electric faults, e.g. electric leakage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/25—Arrangement or mounting of control or safety devices of remote control devices or control-panels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention provides an explosion-proof type hot air gun, which comprises a hot air gun body, wherein the hot air gun body comprises a shell, a sealing cover, a heating component and a resistance plate are sequentially arranged in the shell along an axis, a hot air guide hole is formed in the resistance plate, the resistance plate is connected with a ground wire, the heating component comprises an explosion-proof base arranged in the shell, explosion-proof shells are uniformly distributed on the explosion-proof base along the circumferential direction, heating cores are arranged in the explosion-proof shells, and cold air guide holes are also uniformly distributed on the explosion-proof base along the circumferential direction. The invention is suitable for explosion-proof and antistatic places in dangerous operation, and improves the working efficiency of hot air through the cooperation of the heating component and the resistance plate.
Description
Technical Field
The invention relates to the technical field of heat guns, in particular to an explosion-proof heat gun.
Background
At present, in the assembly of inflammable and explosive dangerous goods, wire welding operation is often needed, a welding position is required to be wrapped by using a heat shrinkage tube after welding is finished, a well-known heat shrinkage mode is to use a heat gun to operate, but an electric heating wire is adopted to heat air flow inside the heat gun to conduct guiding operation through a nozzle at a muzzle, the device can not be used in dangerous operation places because the electric heating wire is exposed in air and generates a heating source when being heated, the problems that the temperature cannot be accurately controlled, the working efficiency is low and the like cannot be applied to the explosion-proof operation environment by adopting an oil bath or water bath heating method, and the heat shrinkage tube heat shrinkage operation of the explosion-proof place cannot be solved by finding out the existing heat shrinkage tube heat shrinkage device without explosion, static electricity prevention, constant temperature type heat gun in the industry and the like.
Disclosure of Invention
In order to overcome the bottleneck problem that the existing heat gun cannot directly operate in an explosion-proof operation area and adopts metal temperature waste heat for heating and oil bath or water bath for heating air, the invention provides the explosion-proof heat gun which is suitable for explosion-proof and antistatic places for dangerous operation and improves the working efficiency of hot air through the cooperation of a heating assembly and a resistance plate.
The technical scheme of the invention is realized as follows: the utility model provides an explosion-proof type heat gun, includes the heat gun body, and the heat gun body includes the shell, has set gradually sealed lid, heating element and resistance board along the axis in the shell, is provided with hot air water conservancy diversion hole on the resistance board, and the resistance board links to each other with the earth connection, and heating element is including setting up the explosion-proof base in the shell, has explosion-proof casing along circumference equipartition on the explosion-proof base, is provided with the core that generates heat in the explosion-proof casing, has cold air water conservancy diversion hole along circumference on the explosion-proof base still equipartition.
Further, the cold air guide hole is inclined outwards along the axial direction and is positioned on one side of the explosion-proof shell far away from the shell.
Further, an insulating shell is further arranged on the explosion-proof base, a temperature sensor is arranged at one end, close to the wind resistance plate, of the insulating shell, and a connecting wire of the temperature sensor penetrates through the explosion-proof base through the insulating shell and is connected with the first wiring terminal.
Further, the heating core penetrates through the explosion-proof base and is connected with the second wiring terminal, and the second wiring terminal is sealed by adopting high-temperature-resistant silicon rubber.
Further, the sealing cover is also provided with a power supply wire inlet hole, a signal wire inlet hole and an air inlet hole, the air inlet hole is communicated with the cold air diversion hole, and the signal wire inlet hole and the air inlet hole are the same hole.
Further, the one end that the shell is close to the wind resistance plate is provided with the hood, and the hood includes the reducing tuber pipe, and reducing tuber pipe one end links to each other with the shell can be dismantled, and the other end is provided with the toper air outlet.
Further, the inner wall of the shell is provided with heat insulation asbestos.
Further, the heating core is a stainless steel ceramic heating core.
Further, the outer side of the shell is also sleeved with a handheld shell.
Further, still include the control box, be provided with temperature display, input power, compressed air pipe, output composite pipeline and heat gun base on the control box, be provided with the controller in the control box, the controller links to each other with the heat gun body through output composite pipeline, and the heat gun body is arranged in on the heat gun base, and input power links to each other with the controller through isolating transformer, and compressed air pipe passes through the solenoid valve and links to each other with the controller, and temperature sensor passes through the signal line and links to each other with the controller.
The invention has the beneficial effects that:
the explosion-proof type hot air gun can be applied to dangerous operation places for heat shrinkage operation, and specifically comprises the following steps: firstly, conducting wire welding heat shrinkage operation in an operation area with antistatic requirements; secondly, the national defense industrial system comprises a wire thermal shrinkage operation in the assembly of fire products; thirdly, conducting wire welding heat shrinkage operation in explosion-proof and antistatic dangerous operation environments in other industries is aimed at.
According to the invention, the explosion-proof shell is matched with the explosion-proof base, so that the heating core is isolated from the outside such as air, and the heating electrification is avoided, and the explosion prevention is realized; the cold air guide holes are obliquely arranged, so that the compressed air can generate vortex in the shell, the explosion-proof shell can fully dissipate heat to form hot air, the hot air is collected by the wind resistance plate, the heating efficiency is improved, the heating is realized without open flame, and the temperature is controllable; and the wind resistance plate grounding wire avoids static electricity and reduces safety risk.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a heat gun body;
FIG. 2 is a cross-sectional view of B-B of FIG. 1;
FIG. 3 is a schematic view of the internal structure of a heat generating component;
FIG. 4 is a perspective view of a heat generating component;
fig. 5 is a perspective view of the housing;
FIG. 6 is a bottom view of the housing;
FIG. 7 is a schematic diagram of the structure of the control box;
FIG. 8 is a block diagram showing the working principle of the heat gun
The heat gun comprises a heat gun body 1, a shell 2, heat insulation asbestos 3, a sealing cover 4, a wind resistance plate 5, a hot air diversion hole 6, an explosion-proof base 7, a heating core 8, an explosion-proof shell 9, a second wiring terminal 10, high temperature resistant silicon rubber 11, a cold air diversion hole 12, a blast cap 13, an insulating shell 14, a temperature sensor 15, a first wiring terminal 16, a power supply wire inlet hole 17, an air inlet hole 18, a control box 19, an operation button 20, a temperature display 21, an input power supply 22, a compressed air pipe 23, an output composite pipeline 24, a heat gun base 25, a signal wire 26, a compressed air pipeline 27, a heating power supply wire 28 and a handheld shell 29.
Detailed Description
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 any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 5, an explosion-proof type heat gun comprises a heat gun body 1, wherein the heat gun body 1 comprises a shell 2, and heat insulation asbestos 3 is fixed on the inner wall of the shell 2. A sealing cover 4, a heating component and a resistance plate 5 are sequentially arranged in the shell 2 along the axis. As shown in fig. 6, a plurality of hot air guide holes 6 are distributed on the wind resistance plate 5, and the wind resistance plate 5 is connected with a ground wire. The heating element is including being fixed in the explosion-proof base 7 in the shell 2, and explosion-proof base 7 is gone up along circumference equipartition and is had 8 explosion-proof casings 9, and explosion-proof casing 9 are located between wind resistance plate 5 and the explosion-proof base 7. The heating core 8 is arranged in each explosion-proof shell 9, so that 8 heating cores 8 are connected in parallel, the outer sides of the heating cores 8 are tightly attached to the explosion-proof shells 9, the heating cores 8 are stainless steel ceramic heating cores, the stainless steel ceramic heating cores 8 can be purchased in the market and comprise ceramic heating bodies, stainless steel is fixed on the outer sides of the ceramic heating bodies, and ceramic falling is avoided.
The explosion-proof housing 9 and the explosion-proof base 7 are fixedly connected, the explosion-proof housing 9 and the explosion-proof base 7 are precisely machined by aluminum alloy, and the heating core 8 is effectively isolated from the outside through the arrangement of the explosion-proof housing 9 and the explosion-proof base 7, so that heating is not electrified. The heating core 8 passes through the explosion-proof base 7 and is connected with the second wiring terminal 10, and the second wiring terminal 10 is sealed by adopting high-temperature resistant silicon rubber 11, so that the electric circuit is prevented from being exposed in the air.
The explosion-proof base 7 is also uniformly provided with 8 cold air guide holes 12 along the circumferential direction, optimally, the cold air guide holes 12 incline outwards along the axial direction and are positioned on one side of the explosion-proof shell 9 far away from the shell 2, the cold air guide holes 12 incline, so that compressed air can generate vortex in the cavity of the shell 2, the explosion-proof shell 2 can fully dissipate heat, and the set temperature of hot air can be reached. The one end that shell 2 is close to wind resistance plate 5 is provided with hood 13, and hood 13 includes the reducing tuber pipe, and the one end suit of reducing tuber pipe is on shell 2, and the other end is the toper air outlet, and it is more concentrated when making the wind blowout through the toper blowing mouth, reduces the scattering of amount of wind, carries out quick shrink to the pyrocondensation pipe. The reducing air pipe is detachably sleeved on the shell 2, so that the hood 13 can be conveniently replaced according to the requirement. The outer side of the shell 2 is also sleeved and fixed with a handheld shell 29, the handheld shell 29 adopts an anti-scalding structure, and hard plastic materials are selected for reducing occupational injuries.
The using method of the explosion-proof type hot air gun comprises the following steps: compressed air enters the cavity of the shell 2 through the cold air guide hole 12 and is blown onto the explosion-proof shell 9, heat generated by the heating core 8 is quickly blown away to form hot air, the hot air is collected by the wind resistance plate 5 and is discharged through the hot air guide hole 6, and finally the hot air is blown out through the conical air outlet; the cooperation of explosion-proof housing 2 and explosion-proof base 7 keeps apart the core 8 that generates heat with external world such as air, avoids generating heat electrified, realizes explosion-proof, and windage board 5 earth connection avoids forming static, reduces the security risk.
Example 2
The present embodiment is basically the same as embodiment 1, except that, as shown in fig. 2 to 4, an insulating case 14 is further fixed in the middle of the explosion-proof base 7, a temperature sensor 15 is mounted at one end of the insulating case 14 near the wind resistance plate 5, and a connection line of the temperature sensor 15 passes through the explosion-proof base 7 through the insulating case 14 and is connected to a first connection terminal 16. The temperature sensor 15 is arranged to detect the temperature of the hot air in real time and feed the temperature back to the temperature display 21, and when the temperature reaches the required use temperature, the handheld heat gun is used for heat shrinkage of the heat shrinkage pipe at the welding position.
The sealing cover 4 is also provided with a power supply wire inlet hole 17, a signal wire inlet hole and an air inlet hole 18, the air inlet hole 18 is communicated with the cold air guide hole 12, the signal wire inlet hole and the air inlet hole 18 are in the same hole and are positioned in the middle of the sealing cover 4, and compressed air enters the cold air guide hole 12 through the air inlet hole 18.
Example 3
The embodiment is basically the same as embodiment 2, except that, as shown in fig. 2, 7 and 8, an explosion-proof type heat gun further comprises a control box 19, an operation button 20, a temperature display 21, an input power supply 22, a compressed air pipe 23, an output composite pipeline 24 and a heat gun base 25 are arranged on the control box 19, a controller is arranged in the control box 19, the controller adopts a singlechip, the input power supply 22 is connected with the controller through an isolation transformer, 220V input power supply 22 outputs a safety voltage of 24V-10A through the isolation transformer as a safety heating power supply, and then the singlechip controls the controllable silicon to realize heating power control.
Compressed air is used as a wind source, a compressed air pipe 23 is connected with a controller through an electromagnetic valve, and the switch of the wind source is controlled through the electromagnetic valve; the temperature sensor 15 is connected to a controller via a signal line 26, which is connected to a temperature display 21. The controller is connected with the heat gun body 1 through an output compound pipeline 24, and the heat gun body 1 is arranged on a heat gun base 25. As shown in fig. 2, the output composite pipeline 24 includes a signal line 26, a compressed air pipeline 27 and a heating power line 28, the compressed air pipeline 27 is communicated with the air inlet 18, the heating power line 28 is connected with the heating component through the power inlet 17, the signal line 26 of the temperature sensor 15 is connected with the first wiring terminal 16 through the signal line inlet, and the output composite pipeline 24 is made of a stainless steel corrugated pipe material, so as to meet the safety requirement of an explosion-proof operation place. After the hot air gun is used, the heating is closed by pressing the stop key, and the electromagnetic valve works for 20 seconds in a delayed mode, so that the internal temperature is fast low, and the operator is prevented from being scalded.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides an explosion-proof type heat gun, includes the heat gun body, and the heat gun body includes shell, its characterized in that: the inner edge axis of the shell is provided with a sealing cover, a heating component and a wind resistance plate in sequence, the wind resistance plate is provided with a hot air diversion hole, the wind resistance plate is connected with a ground wire, the heating component comprises an explosion-proof base arranged in the shell, the explosion-proof base is uniformly provided with an explosion-proof shell along the circumferential direction, the explosion-proof shell is internally provided with a heating core, and the explosion-proof base is also uniformly provided with a cold air diversion hole along the circumferential direction.
2. An explosion-proof heat gun as set forth in claim 1, wherein: the cold air guide hole is inclined outwards along the axial direction and is positioned on one side of the explosion-proof shell far away from the shell.
3. An explosion-proof type heat gun according to claim 1 or 2, wherein: the explosion-proof base is also provided with an insulating shell, one end of the insulating shell, which is close to the wind resistance plate, is provided with a temperature sensor, and a connecting wire of the temperature sensor penetrates through the explosion-proof base through the insulating shell and is connected with the first wiring terminal.
4. An explosion-proof heat gun as set forth in claim 1, wherein: the heating core penetrates through the explosion-proof base and is connected with the second wiring terminal, and the second wiring terminal is sealed by high-temperature-resistant silicon rubber.
5. An explosion-proof heat gun as set forth in claim 3, wherein: the sealing cover is also provided with a power supply wire inlet hole, a signal wire inlet hole and an air inlet hole, the air inlet hole is communicated with the cold air diversion hole, and the signal wire inlet hole and the air inlet hole are the same hole.
6. An explosion-proof heat gun as set forth in claim 1, wherein: one end of the shell, which is close to the wind resistance plate, is provided with a hood, the hood comprises a reducing air pipe, one end of the reducing air pipe is detachably connected with the shell, and the other end of the reducing air pipe is provided with a conical air outlet.
7. An explosion-proof heat gun as set forth in claim 1, wherein: the inner wall of the shell is provided with heat-insulating asbestos.
8. An explosion-proof heat gun as set forth in claim 1, wherein: the heating core is a stainless steel ceramic heating core.
9. An explosion-proof heat gun as set forth in claim 1, wherein: the outer side of the shell is also sleeved with a handheld shell.
10. An explosion-proof heat gun as set forth in claim 3, wherein: still include the control box, be provided with temperature display, input power, compressed air pipe, output composite pipeline and hot air gun base on the control box, be provided with the controller in the control box, the controller links to each other with the hot air gun body through output composite pipeline, and on the hot air gun base was arranged in to the hot air gun body, input power passed through isolation transformer and links to each other with the controller, and compressed air pipe passes through the solenoid valve and links to each other with the controller, and temperature sensor passes through the signal line and links to each other with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211700327.0A CN116182406A (en) | 2022-12-28 | 2022-12-28 | Explosion-proof type hot air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211700327.0A CN116182406A (en) | 2022-12-28 | 2022-12-28 | Explosion-proof type hot air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116182406A true CN116182406A (en) | 2023-05-30 |
Family
ID=86448079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211700327.0A Pending CN116182406A (en) | 2022-12-28 | 2022-12-28 | Explosion-proof type hot air gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116182406A (en) |
-
2022
- 2022-12-28 CN CN202211700327.0A patent/CN116182406A/en active Pending
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