Safety protection type flame gun

Abstract

The utility model relates to a safety protection type flame gun which comprises a gun body part and a nozzle part arranged on the gun body part, the nozzle part is coaxially sleeved with a protective net, and a first reinforcing ring and a second reinforcing ring are coaxially arranged on the inner side wall of the protective net; the first reinforcing ring and the second reinforcing ring are located on the two sides of the protective net correspondingly, and the second reinforcing ring is located on the side, close to the gun body part, of the protective net. The first reinforcing ring and the second reinforcing ring are arranged in a spaced mode, the second reinforcing ring is fixed to the outer portion of the nozzle part in a limited mode, and the inner side wall of the first reinforcing ring is separated from the outer side wall of the nozzle part. The method has the advantages that the safety during use can be greatly improved, and the risk that a user is scalded is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of flamethrowers, and in particular to a safety protection flamethrower. Background Art

[0002] The working principle of the current flamethrower is to use compressed gas, regulate the pressure and flow of the gas, and then spray it out from the muzzle and ignite it, thereby forming a high-temperature columnar flame for heating, welding and other tasks.

[0003] The existing flamethrower mainly includes an outer shell, in which a nozzle device, a piezoelectric device, an ignition assembly, a gas chamber and a gas valve assembly for adjusting the softness and hardness of the flame are arranged; when in use, by pressing the ignition assembly, the valve of the gas chamber will be opened under the downward pressure of the ignition assembly, and at the same time, the ignition assembly will also push the trigger end of the piezoelectric device to gradually compress. When the compression stroke of the piezoelectric device reaches the ignition stroke, the piezoelectric device will release high-voltage electrical energy and emit electric sparks at the air outlet of the nozzle device through the lead to achieve ignition; during use, the gas valve assembly can also be adjusted to control the gas flow rate sprayed from the air outlet of the nozzle device, thereby achieving the purpose of adjusting the softness and hardness of the flame.

[0004] After a flamethrower has been spraying flames for a long time, the surface temperature of the outside of the nozzle will rise sharply after a long period of heating. If the user accidentally touches the outside of the nozzle at this time, there is a risk of burns to the user. Therefore, there are certain safety hazards in the use of the above-mentioned flamethrower. Utility Model Content

[0005] The present application provides a safety protection type flamethrower, which can effectively prevent the risk of burns to users and further improve the safety during use.

[0006] The present application provides a safety protection type flamethrower adopting the following technical solutions:

[0007] A safety protection type flamethrower includes a gun body and a nozzle portion arranged on the gun body, the outside of the nozzle portion is coaxially sleeved with a protective net, and a first reinforcement ring and a second reinforcement ring are coaxially arranged on the inner side wall of the protective net; the first reinforcement ring and the second reinforcement ring are respectively located on both sides of the protective net, and the second reinforcement ring is located on the side of the protective net close to the gun body; the first reinforcement ring and the second reinforcement ring are spaced apart, the second reinforcement ring is limited and fixed on the outside of the nozzle portion, and the inner side wall of the first reinforcement ring is separated from the outer side wall of the nozzle portion.

[0008] Preferably, the inner sidewall of the second reinforcing ring is in mutual fit with the outer sidewall of the nozzle part. A first threaded hole is penetrated through the second reinforcing ring, and a first fastener is in threaded connection with the first threaded hole; the end part of the first fastener abuts against the outer sidewall of the nozzle part; the first fastener screws and fixes the second reinforcing ring outside the nozzle part.

[0009] Preferably, a mounting member facing the nozzle part is arranged on the gun body part. The nozzle part includes an outer cover with one end sleeved outside the mounting member, and the mounting member and the outer cover are coaxially arranged; a second threaded hole is arranged on the outer circumferential surface of the mounting member, and a second fastener screwed and fixed in the second threaded hole is arranged on the outer cover. The second fastener screws and fixes the outer cover outside the mounting member.

[0010] Preferably, a plugging groove is further arranged on the outer circumferential surface of the mounting member, and a plugging member facing the plugging groove is arranged on the inner sidewall of the outer cover. The plugging member and the plugging groove are in plugging fit with each other.

[0011] Preferably, a limiting ring is integrally formed on the outer circumferential surface of the mounting member. The limiting ring is located outside the outer cover, and the limiting ring and the outer cover are coaxial; the limiting ring is in contact with the outer sidewall of the outer cover.

[0012] Preferably, the nozzle part further includes a heat insulation cover arranged inside the outer cover. A spray head is installed inside the outer cover, and the air outlet of the spray head is arranged inside the heat insulation cover.

[0013] Preferably, a wire inserting hole is penetrated through the inner sidewall of the heat insulation cover, and the wire inserting hole is used for allowing a lead wire to pass through.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] The protective net can effectively prevent users from directly touching the outer cover, thus greatly improving the safety during use and reducing the risk of users being scalded; in addition, the heat insulation cover arranged outside the spray head can further inhibit the transfer of heat to the outer cover, and further inhibit the temperature rise rate on the surface of the outer cover; after the spray head sprays fire for a long time, the temperature on the surface of the outer cover can still be maintained within a relatively safe range;

[0016] When installing the outer cover, through the mutual plugging fit of the plugging member and the plugging groove, the outer cover can be initially limited and fixed on the mounting member, and at the same time, it can ensure that the second fastener is smoothly aligned with the position of the second threaded hole, so that the second fastener can smoothly screw and fix the outer cover outside the mounting member, which is convenient for installation. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0018] Figure 2 Yes Figure 1 Partial structural sectional schematic diagram after hiding the protective net;

[0019] Figure 3 Yes Figure 1 Explosion schematic diagram of the partial structure of;

[0020] Figure 4 Yes Figure 3 Explosion schematic diagram of the partial structure of;

[0021] Figure 5 Yes Figure 4 Explosion schematic diagram of the partial structure from another perspective.

[0022] Explanation of reference numerals: 1, gun body part; 2, nozzle part; 20, outer cover; 21, plug-in part; 22, heat insulation cover; 23, nozzle; 24, wire insertion hole; 3, protective net; 30, first reinforcement ring; 31, second reinforcement ring; 310, relief groove; 32, first threaded hole; 33, first fastener; 4, mounting part; 40, second threaded hole; 41, plug-in groove; 42, limiting ring; 5, second fastener. Specific implementation mode

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] An embodiment of the present application discloses a safety protection type blowtorch.

[0025] Refer to Figure 1 , Figure 2 , the safety protection type blowtorch includes a gun body part 1 and a nozzle part 2 arranged on the gun body part 1. A mounting part 4 facing the nozzle part 2 is fixedly installed on the gun body part 1, and the nozzle part 2 is detachably installed outside the mounting part 4. A protective net 3 is coaxially sleeved outside the nozzle part 2, and the protective net 3 is made of a hard metal material.

[0026] As Figure 3 , Figure 4 and Figure 5 shown, the nozzle part 2 includes an outer cover 20 sleeved at one end outside the mounting part 4, and the mounting part 4 and the outer cover 20 are coaxially arranged. A plug-in groove 41 is arranged on the outer circumferential surface of the mounting part 4, and a plug-in part 21 facing the plug-in groove 41 is integrally formed on the inner side wall of the outer cover 20. The plug-in part 21 and the plug-in groove 41 are mutually plugged and matched. When installing the outer cover 20, first align the plug-in part 21 with the opening of the plug-in groove 41, then insert the outer cover 20 along the central axis direction of the mounting part 4 into the plug-in groove 41, and then rotate the outer cover 20 to further screw the plug-in part 21 into the plug-in groove 41. Through the mutual plugging and matching of the plug-in part 21 and the plug-in groove 41, the outer cover 20 can be preliminarily limited and fixed outside the mounting part 4.

[0027] As Figure 4 、 Figure 5 shown, a second threaded hole 40 is further provided on the outer circumferential surface of the mounting member 4, and a second fastener 5 for screwing and fixing in the second threaded hole 40 is provided on the outer cover 20. In this embodiment, the second fastener 5 is a bolt. When the second fastener 5 is inserted and tightened in the second threaded hole 40, the second fastener 5 can further screw and fix the outer cover 20 outside the mounting member 4 at this time.

[0028] As Figure 4 、 Figure 5 shown, a limiting ring 42 is integrally formed on the outer circumferential surface of the mounting member 4 close to the gun body portion 1, and the outer diameter of the limiting ring 42 is larger than the outer diameter of the mounting member 4. The limiting ring 42 is located outside the outer cover 20, and the limiting ring 42 is coaxial with the outer cover 20. The limiting ring 42 is in contact and fit with the outer side wall of the outer cover 20 fixedly installed on the mounting member 4. When the outer cover 20 is sleeved outside the mounting member 4, the outer cover 20 can be prevented from detaching from the mounting member 4 under the limitation of the limiting ring 42.

[0029] As Figure 3 、 Figure 4 shown, the nozzle portion 2 further includes a heat insulation cover 22 fixedly installed inside the outer cover 20. The heat insulation cover 22 is close to the flame outlet of the outer cover 20, and the heat insulation cover 22 is coaxially arranged with the outer cover 20. A spray head 23 for spraying fire is fixedly installed inside the outer cover 20. The air outlet of the spray head 23 is arranged inside the heat insulation cover 22. The heat insulation cover 22 is circumferentially arranged around the air outlet of the spray head 23. The heat insulation cover 22 is made of heat insulation material. A wire insertion hole 24 is penetrated on the inner side wall of the heat insulation cover 22, and the wire insertion hole 24 is used for the lead wire to pass through.

[0030] As Figure 1 、 Figure 3 shown, a first reinforcing ring 30 and a second reinforcing ring 31 are coaxially and fixedly arranged on the inner side wall of the protective net 3. The first reinforcing ring 30 and the second reinforcing ring 31 are respectively located on both sides of the protective net 3. The first reinforcing ring 30 is located outside the flame outlet of the outer cover 20, while the second reinforcing ring 31 is located on the side of the protective net 3 close to the gun body portion 1. The first reinforcing ring 30 and the second reinforcing ring 31 are arranged at intervals, and the second reinforcing ring 31 is coaxial with the outer cover 20. The second reinforcing ring 31 is detachably installed outside the outer cover 20. The inner side wall of the second reinforcing ring 31 is in contact with the outer side wall of the outer cover 20, while the inner side wall of the first reinforcing ring 30 is separated from the outer side wall of the outer cover 20.

[0031] As Figure 1 、 Figure 3As shown, a first threaded hole 32 penetrates through the second reinforcing ring 31, and a first fastener 33 is threadedly connected in the first threaded hole 32. In this embodiment, the first fastener 33 is a bolt. When the first fastener 33 is screwed tightly in the first threaded hole 32, the end of the first fastener 33 will abut against the outer side wall of the outer cover 20. The first fastener 33 is used to screw and fix the second reinforcing ring 31 outside the outer cover 20.

[0032] As Figure 3 shown, a relief groove 310 is also formed through the second reinforcing ring 31 and is opposite to the second fastener 5. The length of the relief groove 310 extends along the direction in which the second reinforcing ring 31 is sleeved outside the outer cover 20. Through the relief groove 310, it can be ensured that the second reinforcing ring 31 can smoothly pass over the second fastener 5 and finally be sleeved at a specified position on the outer cover 20.

[0033] The implementation principle is as follows: The protective net 3 can effectively prevent users from directly touching the outer cover 20, thus greatly improving the safety during use and reducing the risk of users being scalded; in addition, the heat insulation cover 22 provided outside the nozzle 23 can further inhibit the transfer of heat to the outer cover 20, and thus can inhibit the temperature rise rate on the surface of the outer cover 20; after the nozzle 23 has been spraying fire for a long time, the temperature on the surface of the outer cover 20 can still be maintained within a relatively safe range.

[0034] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A safety protection type blowtorch, comprising a gun body part (1) and a nozzle part (2) arranged on the gun body part (1), characterized in that: A protective net (3) is coaxially sleeved outside the nozzle part (2). A first reinforcement ring (30) and a second reinforcement ring (31) are coaxially arranged on the inner side wall of the protective net (3). The first reinforcement ring (30) and the second reinforcement ring (31) are respectively located on both sides of the protective net (3), and the second reinforcement ring (31) is located on the side of the protective net (3) close to the gun body part (1). The first reinforcement ring (30) and the second reinforcement ring (31) are arranged at intervals. The second reinforcement ring (31) is limited and fixed outside the nozzle part (2), and the inner side wall of the first reinforcement ring (30) is separated from the outer side wall of the nozzle part (2).

2. The safety protection type blowtorch according to claim 1, characterized in that: The inner side wall of the second reinforcement ring (31) is in contact with the outer side wall of the nozzle part (2). A first threaded hole (32) penetrates through the second reinforcement ring (31). A first fastener (33) is threadedly connected in the first threaded hole (32). The end of the first fastener (33) abuts against the outer side wall of the nozzle part (2). The first fastener (33) screws and fixes the second reinforcement ring (31) outside the nozzle part (2).

3. The safety protection type blowtorch according to claim 2, wherein: An installation part (4) facing the nozzle part (2) is arranged on the gun body part (1). The nozzle part (2) includes an outer cover (20) with one end sleeved outside the installation part (4). The installation part (4) and the outer cover (20) are coaxially arranged. A second threaded hole (40) is arranged on the outer circumferential surface of the installation part (4). A second fastener (5) that is screwed and fixed in the second threaded hole (40) is arranged on the outer cover (20). The second fastener (5) screws and fixes the outer cover (20) outside the installation part (4).

4. The safety protection type blowtorch according to claim 3, characterized in that: A plug-in groove (41) is further arranged on the outer circumferential surface of the installation part (4). A plug-in part (21) facing the plug-in groove (41) is arranged on the inner side wall of the outer cover (20). The plug-in part (21) and the plug-in groove (41) are in plug-in fit with each other.

5. The safety protection type blowtorch according to claim 4, wherein: A limit ring (42) is integrally formed on the outer circumferential surface of the installation part (4). The limit ring (42) is located outside the outer cover (20), and the limit ring (42) and the outer cover (20) are coaxial. The limit ring (42) is in contact with the outer side wall of the outer cover (20).

6. The safety protection type blowtorch according to claim 3, characterized in that: The nozzle part (2) further includes a heat insulation cover (22) arranged inside the outer cover (20). A spray head (23) is installed inside the outer cover (20). The air outlet of the spray head (23) is arranged inside the heat insulation cover (22).

7. The safety protection type blowtorch according to claim 6, characterized in that: A wire insertion hole (24) penetrates through the inner side wall of the heat insulation cover (22). The wire insertion hole (A wire insertion hole (24) penetrates through the inner side wall of the heat insulation cover (22). The wire insertion hole (24) is used for allowing a lead wire to pass through.

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