CN113294781B

CN113294781B - Handheld flame gun

Info

Publication number: CN113294781B
Application number: CN202110515017.0A
Authority: CN
Inventors: 方海亮; 曹惺国; 徐弟芳
Original assignee: Third Military Medical University TMMU
Current assignee: Third Military Medical University TMMU
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2023-06-27
Anticipated expiration: 2041-05-12
Also published as: CN113294781A

Abstract

The invention belongs to the technical field of flame spraying devices, and provides a handheld flame spraying gun which comprises a gun body, an ignition device, an adjusting knob, a first button assembly, a second button assembly and a first permanent magnet, wherein the gun body is provided with a first channel, a fuel storage cavity and a fire extinguishing raw material storage cavity which are not communicated with each other; the second button assembly comprises a second button body, a second spring, a fourth permanent magnet, a fifth permanent magnet and a sixth permanent magnet. The handheld flame gun provided by the invention has the advantages of timely fire extinguishing function and simple structure.

Description

Handheld flame gun

Technical Field

The invention relates to the technical field of flame spraying devices, in particular to a handheld flame spraying gun.

Background

In shooting movies, television shows, fire rescue videos, and performing fire drills, it is often necessary to burn out props or clothing using a hand-held flame gun to simulate the burned clothing of a wounded person in order to achieve realistic effects.

However, the existing handheld flame gun generally does not have the function of extinguishing fire, if flammable props are ignited, the flammable props cannot be extinguished in time, so that the burning area is too large, the props or clothing are wasted, and the fire is seriously caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a handheld flame gun which has the function of fire extinguishment and achieves the aim of extinguishment in time.

In order to achieve the above purpose, the invention provides a hand-held flame gun, comprising a gun body, an ignition device and an adjusting knob, wherein the gun body is provided with a first channel, a fuel storage cavity and a fire extinguishing raw material storage cavity which are not communicated with each other, and the hand-held flame gun further comprises:

a first button assembly, the first button assembly comprising:

the gun comprises a gun body, a first button body, a second button body, a first button and a second button, wherein a first mounting cavity is arranged on the gun body, the first mounting cavity is positioned above the fuel storage cavity, one end of the first mounting cavity, which faces to a gun head of the gun body, is communicated with the outside, and the first end of the first button body is slidably inserted in the first mounting cavity, and the second end of the first button body extends towards the gun head of the gun body;

the first spring is arranged in the first mounting cavity, and two ends of the first spring respectively abut against the inner wall of the first mounting cavity and the first end of the first button body;

the gun body is provided with a first sliding hole, a first fuel channel and a second fuel channel, the first sliding hole is positioned between the first mounting cavity and the fuel storage cavity, the first fuel channel is L-shaped, the first end of the first fuel channel is communicated with the fuel storage cavity, the second end of the first fuel channel is communicated with the first sliding hole, the first end of the second fuel channel is communicated with the first sliding hole, the second end of the second fuel channel is communicated with the first channel, and the first permanent magnet is slidably arranged in the first sliding hole; and

a first mounting groove is formed in one side of the first button body facing the first sliding hole, the second permanent magnet and the third permanent magnet are arranged in the first mounting groove in parallel from the first end of the first button body to the second end, the magnetism of the opposite side of the second permanent magnet and the magnetism of the opposite side of the first permanent magnet are opposite, and the magnetism of the third permanent magnet and the magnetism of the opposite side of the first permanent magnet are the same; and

a second button assembly, the second button assembly comprising:

the second button body is provided with a second installation cavity, the second installation cavity is positioned above the fuel storage cavity, one end of the second installation cavity facing the gun head of the gun body is communicated with the outside, and the first end of the second button body is slidably inserted in the second installation cavity, and the second end of the second button body extends towards the gun head of the gun body;

the second spring is arranged in the second mounting cavity, and two ends of the second spring respectively abut against the inner wall of the second mounting cavity and the first end of the second button body;

the second sliding hole is positioned between the second mounting cavity and the fuel storage cavity, the first fire-extinguishing raw material channel is L-shaped, the first end of the first fire-extinguishing raw material channel is communicated with the fuel storage cavity, the second end of the first fire-extinguishing raw material channel is communicated with the second sliding hole, the first end of the second fire-extinguishing raw material channel is communicated with the second sliding hole, the second end of the second fire-extinguishing raw material channel is communicated with the first channel, and the fourth permanent magnet is slidably arranged in the second sliding hole; and

the second button comprises a second button body, a second sliding hole and a second permanent magnet, wherein a second mounting groove is formed in one side of the second button body facing the second sliding hole, the second permanent magnet and the second permanent magnet are arranged in the second mounting groove in parallel from the first end of the second button body to the second end, the magnetism of one side of the second button body opposite to the magnetism of the other side of the second button body is opposite to the magnetism of the other side of the second button body, and the magnetism of the other side of the second button body opposite to the magnetism of the other side of the second button body is the same as the magnetism of the other side of the second button body.

Further, a locking structure is also included, the locking structure including:

the gun body is provided with a first mounting hole, the first mounting hole is positioned between the first mounting cavity and the second mounting cavity, a first end of the first mounting hole is communicated with the first mounting cavity, a second end of the first mounting hole is communicated with the second mounting cavity, and the first locking block is arranged at the first end of the first mounting hole in a sliding mode;

the second locking block is arranged at the second end of the first mounting hole in a sliding manner;

the third spring is arranged in the first mounting hole, and two ends of the third spring respectively abut against the first ends of the first locking block and the second locking block;

a first locking groove matched with the first locking block, wherein the first locking groove is arranged on one side of the first button body facing the first locking block; and

a second locking groove matched with the second locking block, the second locking groove is arranged on one side of the second button body facing the second locking block,

wherein a side of the second end of the first locking block facing the second end of the first button body is provided as a first inclined surface, and a side of the second end of the second locking block facing the second end of the second button body is provided as a second inclined surface.

Further, a first locking structure for holding the first button body in different first and second operating positions is also included, the first locking structure comprising:

the second end of the first locking block is provided with a first chute, the first end of the first locking block is arranged in the first chute in a sliding way, and the second end of the first locking block extends in a direction away from the first locking block; and

offer first guide slot on the first button body with first locking piece matched with, first guide slot is heart shape, first guide slot includes first roll-in roll-off guiding portion, first tentative portion and second guiding portion, the second end of first locking piece is followed first roll-in roll-off guiding portion with first guiding portion slides to first tentative portion and can temporarily fix in first tentative portion, the second end of first locking piece leaves behind the first tentative portion follow second guiding portion with first roll-in roll-off guiding portion slides.

Further, a second locking structure is also included for holding the second button body in different first and second operating positions, the second locking structure comprising:

the second end of the second locking block is provided with a second chute, the first end of the second locking block is arranged in the second chute in a sliding way, and the second end of the second locking block extends in a direction away from the second locking block; and

the second guide groove is arranged on the second button body and matched with the second locking block, the second guide groove is heart-shaped, the second guide groove comprises a second slide-in and slide-out guide part, a third guide part, a second temporary fixing part and a fourth guide part, the second end of the second locking block slides to the second temporary fixing part along the second slide-in and slide-out guide part and the third guide part and can be temporarily positioned at the second temporary fixing part, and the second end of the second locking block slides along the fourth guide part and the second slide-in and slide-out guide part after leaving the second temporary fixing part.

The invention has the beneficial effects that:

according to the handheld flame gun provided by the invention, the fire extinguishing raw material storage cavity is arranged in the gun body, so that the handheld flame gun has a fire extinguishing function, and the aim of timely extinguishing fire is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view of a handheld flame gun according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along the A-A direction shown in FIG. 1;

FIG. 3 is a cross-sectional view in the direction B-B shown in FIG. 1;

fig. 4 is an enlarged view at C shown in fig. 1;

fig. 5 is an enlarged view of D shown in fig. 1;

FIG. 6 is an enlarged view at E shown in FIG. 1;

fig. 7 is an enlarged view at F shown in fig. 2;

fig. 8 is an enlarged view at G shown in fig. 3;

FIG. 9 is a perspective view of a first button body of the handheld flame gun shown in FIG. 1;

FIG. 10 is a bottom view of the first button body shown in FIG. 9;

fig. 11 is an enlarged view at H shown in fig. 10;

FIG. 12 is a perspective view of a second button body of the handheld flame gun shown in FIG. 1;

FIG. 13 is a top view of the second button body shown in FIG. 10;

fig. 14 is an enlarged view at I shown in fig. 13.

Reference numerals:

100-first channel, 101-first fuel storage cavity, 103-first installation cavity, 105-first slide hole, 106-first fuel channel, 107-second fuel channel, 108-second installation cavity, 109-second slide hole, 110-first fire extinguishing raw material channel, 111-first installation hole, 113-fire extinguishing raw material channel, 114-fire extinguishing raw material channel, 200-first button assembly, 210-first button body, 211-first mounting groove, 220-first spring, 230-second permanent magnet, 250-third permanent magnet, 300-second button assembly, 310-second button body, 311-second mounting groove 320-second spring, 330-fourth permanent magnet, 340-fifth permanent magnet, 350-sixth permanent magnet, 400-locking structure, 410-first locking block, 411-first runner, 420-second locking block, 421-second runner, 430-third spring, 440-first locking groove, 450-second locking groove, 500-first locking structure, 510-first locking block, 520-first guiding groove, 521-first slide-in slide-out guiding portion, 522-first guiding portion, 523-first temporary guiding portion, 524-second guiding portion, 600-second locking structure, 610-second locking block, 620-second guiding groove, 621-second slide-in slide-out guiding portion, 622-third guiding portion, 623-second temporary guiding portion, 624-fourth guides.

Detailed Description

Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1-14, the invention provides a handheld flame gun, which comprises a gun body 100, an ignition device and an adjusting knob, wherein a first channel 101, a fuel storage cavity 102 and a fire extinguishing raw material storage cavity 103 which are not communicated with each other are arranged on the gun body 100, wherein fuel stored in the fuel storage cavity 102 is butane, and fire extinguishing raw material stored in the fire extinguishing raw material storage cavity 103 is heptafluoropropane. The ignition device is used for ignition, and the adjusting device is used for adjusting the sizes of butane and heptafluoropropane sprayed in the first channel 101. These are prior art and are not described in any detail herein and are not shown in the drawings. Preferably, the bottoms of the fuel storage chamber 102 and the fire extinguishing raw material storage chamber 103 are provided with a fuel filler 113 and a fire extinguishing raw material filler 114, respectively, so as to add fuel or fire extinguishing raw material to the inside after use.

The hand-held flame gun also includes a first button assembly 200 and a second button assembly 300. When the first button assembly 200 is pressed, the hand-held flame gun fires; and when the second button assembly 300 is pressed, the hand-held flame gun ejects fire extinguishing raw material to extinguish a fire.

The first button assembly 200 includes a first button body 210, a first spring 220, a first permanent magnet 230, a second permanent magnet 240, and a third permanent magnet 250.

The gun body 100 is provided with a first installation cavity 104, the first installation cavity 104 is located above the fuel storage cavity 102, one end of the first installation cavity 104 facing the gun head of the gun body 100 is communicated with the outside, and a first end of the first button body 210 is slidably inserted into the first installation cavity 104, and a second end of the first button body extends towards the gun head of the gun body 100.

The first spring 220 is installed in the first installation cavity 104, and both ends thereof respectively collide with the inner wall of the first installation cavity 104 and the first end of the first button body 210. And in a natural state, the first spring 220 has a tendency to move the first button body 210 in a direction away from the first mounting cavity 104.

The gun body 100 is further provided with a first sliding hole 105, a first fuel channel 106 and a second fuel channel 107, the first sliding hole 105 is located between the first installation cavity 104 and the fuel storage cavity 102, the first fuel channel 106 is L-shaped, a first end of the first fuel channel 106 is communicated with the fuel storage cavity 102, and a second end of the first fuel channel 106 is communicated with the first sliding hole 105. The first end of the second fuel passage 107 communicates with the first slide hole 105, the second end communicates with the first passage 101, and the first permanent magnet 230 is slidably mounted in the first slide hole 105. Preferably, the second fuel passage 107 is C-shaped. Specifically, the first fuel passage 106 and the second fuel passage 107 each communicate with the tip end of the first slide hole 105.

The first button body 210 is provided with a first mounting groove 211 on a side facing the first sliding hole 105, the second permanent magnet 240 and the third permanent magnet 250 are arranged in the first mounting groove 211 in parallel from the first end of the first button body 210 to the second end, the magnetism of the opposite side of the second permanent magnet 240 and the opposite side of the first permanent magnet 230 is opposite, and the magnetism of the opposite side of the third permanent magnet 250 and the opposite side of the first permanent magnet 230 is the same.

Initially, the first button body 210 is in the first working position under the elastic force of the first spring 220. At this time, the second permanent magnet 240 corresponds to the first permanent magnet 230, and since the second permanent magnet 240 has opposite magnetic properties to the opposite side of the first permanent magnet 230, an attractive force must be generated between the second permanent magnet 240 and the first permanent magnet 230, and the first permanent magnet 230 is held at the tip of the first slide hole 105 by the attractive force, so that the first fuel passage 106 and the second fuel passage 107 are sealed, and the fuel in the fuel storage chamber 102 does not flow out from the fuel storage chamber 102.

When the first button body 210 is pressed, the first button body 210 overcomes the elastic force of the first spring 220, thereby moving to the second operating position. At this time, the third permanent magnet corresponds to the first permanent magnet 230, since the third permanent magnet 250 has the same magnetic properties as the opposite side of the first permanent magnet 230, a repulsive force must be generated between the third permanent magnet 250 and the first permanent magnet 230, and the first permanent magnet 230 is pushed to the bottom end of the first sliding hole 105 by the repulsive force, so that the first permanent magnet 230 cannot block the first fuel passage 106 and the second fuel passage 107, and the fuel enters the first passage 101 from the first fuel passage 106 and then enters the second fuel passage 107, and is ignited by the ignition device, thereby achieving the purpose of flaming.

The second button assembly 300 includes a second button body 310, a second spring 320, a fourth permanent magnet 330, a fifth permanent magnet 340, and a sixth permanent magnet 350.

The gun body 100 is provided with a second mounting cavity 108, and the second mounting cavity 108 is located above the fuel storage cavity 102. One end of the second mounting cavity 108 facing the gun head of the gun body 100 is communicated with the outside, and the first end of the second button body 310 is slidably inserted into the second mounting cavity 108 and extends toward the gun head of the gun body 100.

The second spring 320 is installed in the second installation cavity 108, and both ends thereof respectively collide with the inner wall of the second installation cavity 108 and the first end of the second button body 310. And in a natural state, the second spring 320 has a tendency to move the second button body 310 away from the second mounting cavity 108.

The gun body 100 is provided with a second slide hole 109, a first fire extinguishing raw material passage 110 and a second fire extinguishing raw material passage 111. Wherein, the second slide hole 109 is located between the second installation cavity 108 and the fuel storage cavity 102, the first fire extinguishing raw material channel 110 is L-shaped, the first end of the first fire extinguishing raw material channel 110 is communicated with the fuel storage cavity 102, and the second end is communicated with the second slide hole 109. The second fire extinguishing raw material passage 111 has a first end communicating with the second slide hole 109 and a second end communicating with the first passage 101, and the fourth permanent magnet 330 is slidably mounted in the second slide hole 109. Preferably, the second fire extinguishing raw material passage 111 has a C-shape. Specifically, the first fire-extinguishing raw material passage 110 and the second fire-extinguishing raw material passage 111 each communicate with the tip of the second slide hole 109.

The second mounting groove 311 is formed on a side of the second button body 310 facing the second sliding hole 109, the fifth permanent magnet 340 and the sixth permanent magnet 350 are disposed in the second mounting groove 311 in parallel from the first end of the second button body 310 toward the second end, and the magnetic properties of the opposite sides of the fifth permanent magnet 340 and the fourth permanent magnet 330 are opposite, and the magnetic properties of the opposite sides of the sixth permanent magnet 350 and the fourth permanent magnet 330 are the same.

Initially, the second button body 310 is in the first working position under the elastic force of the second spring 320. At this time, the fifth permanent magnet 340 corresponds to the fourth permanent magnet 330, and since the magnetism of the opposite side of the fifth permanent magnet 340 and the fourth permanent magnet 330 is opposite, an attractive force must be generated between the fifth permanent magnet 340 and the fourth permanent magnet 330, and the fourth permanent magnet 330 is held at the tip of the second slide hole 109 by the attractive force, so that the first fire extinguishing raw material passage 110 and the second fire extinguishing raw material passage 111 are blocked, and the fire extinguishing raw material in the fire extinguishing raw material storage chamber 103 does not flow out from the fire extinguishing raw material storage chamber 103.

When the second button body 310 is pressed, the second button body 310 overcomes the elastic force of the second spring 320, thereby moving to the second operating position. At this time, the sixth permanent magnet corresponds to the fourth permanent magnet 330, and since the magnetism of the opposite sides of the sixth permanent magnet 350 and the fourth permanent magnet 330 is the same, a repulsive force must be generated between the sixth permanent magnet 350 and the fourth permanent magnet 330, and the fourth permanent magnet 330 is pushed to the bottom end of the second slide hole 109 by the repulsive force, so that the fourth permanent magnet 330 cannot block the first fire extinguishing raw material channel 110 and the second fire extinguishing raw material channel 111, and the fire extinguishing raw material enters the first slide hole 105 through the first fire extinguishing raw material channel 110, then enters the first channel 101 from the second fire extinguishing raw material channel 111, and finally is ejected from the muzzle, thereby achieving the purpose of extinguishing fire.

In one embodiment, a locking structure 400 is further included, the locking structure 400 being used to prevent the occurrence of a simultaneous pressing of the first button assembly 200 and the second button assembly 300. The locking structure 400 includes a first locking block 410, a second locking block 420, a third spring 430, a first locking groove 440 engaged with the first locking block 410, and a second locking groove 450 engaged with the second locking block 420.

Wherein, a first mounting hole 112 is formed on the gun body 100, the first mounting hole 112 is located between the first mounting cavity 104 and the second mounting cavity 108, a first end of the first mounting hole 112 is communicated with the first mounting cavity 104, a second end of the first mounting hole is communicated with the second mounting cavity 108, and the first locking block 410 is slidably mounted at the first end of the first mounting hole 112. The second locking block 420 is slidably mounted at the second end of the first mounting hole 112. The third spring 430 is installed in the first installation hole 112 with both ends thereof abutting against the first ends of the first and second locking blocks 410 and 420, respectively. And, in a natural state, the third spring 430 has a tendency to move the first and second locking blocks 410 and 420 in a direction away from each other.

The first locking groove 440 is opened at a side of the first button body 210 facing the first locking block 410. The second locking groove 450 is provided at a side of the second button body 310 facing the second locking block 420.

Wherein a side of the second end of the first locking block 410 facing the second end of the first button body 210 is provided as a first slope, and a side of the second end of the second locking block 420 facing the second end of the second button body 310 is provided as a second slope.

Initially, i.e., without pressing the first and

second button bodies

210 and 310, the first and second locking blocks 410 and 420 are located in the first and second locking

grooves

440 and 450, respectively.

When the first button body 210 is pressed, the first button body 210 pushes the first locking block 410 to move into the first mounting hole 112 and compresses the third spring 430 under the action of the first slope. When the first button body 210 moves to the second working position, the third spring 430 can no longer be compressed or the compression amount is small. At this time, if the second button body 310 is pressed, the second locking block 420 cannot compress the third spring 430 to move into the first mounting hole 112, thereby achieving the purpose of locking the second button body 310.

Similarly, when the second button body 310 is pressed to the second action position, the third spring 430 cannot be compressed or is compressed less. At this time, the first button body 210 is pressed again, and the first locking block 410 cannot move into the first mounting hole 112 due to the inability to compress the third spring 430, so as to achieve the purpose of locking the first button body 210, thereby ensuring that only one button can be pressed at a time, and further avoiding the occurrence of the situation that the second button body 310 is pressed by mistake during fire spraying and the first button body 210 is pressed by mistake during fire extinguishing.

With this structure, the second button body 310 cannot be pressed when the first button body 210 is pressed, and the first button body 210 cannot be pressed when the second button body 310 is pressed, so that the simultaneous pressing of the first button body 210 and the second button body 310 can be effectively avoided.

In one embodiment, the first locking structure 500 is further included, where the first locking structure 500 is used to hold the first button body 210 in the first working position and the second working position differently, and the first locking structure 500 includes a first locking block 510 and a first guiding groove 520 that is formed on the first button body 210 and cooperates with the first locking block 510.

The second end of the first locking block 410 is provided with a first sliding slot 411, and the first end of the first locking block 510 is slidably mounted in the first sliding slot 411, and the second end extends in a direction away from the first locking block 410. Preferably, the first sliding groove 411 is stepped, and a side facing the first locking block 410 is a larger side.

The first guide groove 520 is heart-shaped, and the first guide groove 520 includes a first slide-in and slide-out guide portion 521, a first guide portion 522, a first temporary fixing portion 523, and a second guide portion 524, and the second end of the first lock block 510 slides along the first slide-in and slide-out guide portion 521 and the first guide portion 522 to the first temporary fixing portion 523 and is temporarily positionable at the first temporary fixing portion 523, and the second end of the first lock block 510 slides along the second guide portion 524 and the first slide-in and slide-out guide portion 521 after leaving the first temporary fixing portion 523.

In use, during the pressing of the first button body 210 to the second working position, the second end of the first lock block 510 slides along the first slide-in and slide-out guide 521 and the first guide 522 to the first tentative part 523 and is temporarily positioned at the first tentative part 523. Thus, the first button body 210 is maintained in the second operating position.

When the first button body 210 is pressed again, the second end of the first locking piece 510 slides along the second guide 524 and the first slide-in and slide-out guide 521, and the first button body 210 returns to the first operating position under the action of the first spring 220.

With this structure, the first button body 210 can be temporarily set at the second operating position, so that the first button body 210 is prevented from being pressed all the time during the fire spraying.

In one embodiment, the second locking structure 600 is further included, the second locking structure 600 is used for keeping the second button body 310 at the first working position and the second working position differently, and the second locking structure 600 includes a second locking block 610 and a second guiding groove 620 which is formed on the second button body 310 and is matched with the second locking block 610.

The second locking block 420 has a second sliding groove 421 at a second end thereof, and the first end of the second locking block 610 is slidably disposed in the second sliding groove 421 and extends in a direction away from the second locking block 420. Preferably, the second sliding groove 421 is stepped, and the side facing the second locking block 420 is the larger side.

The second guide groove 620 is heart-shaped, and the second guide groove 620 includes a second slide-in and slide-out guide portion 621, a third guide portion 622, a second temporary fixing portion 623, and a fourth guide portion 624, and the second end of the second locking piece 610 slides along the second slide-in and slide-out guide portion 621 and the third guide portion 622 to the second temporary fixing portion 623 and is temporarily positioned at the second temporary fixing portion 623, and the second end of the second locking piece 610 slides along the fourth guide portion 624 and the second slide-in and slide-out guide portion 621 after leaving the second temporary fixing portion 623.

In use, during the pressing of the second button body 310 to the second working position, the second end of the second locking piece 610 slides along the second slide-in and slide-out guide portion 621 and the third guide portion 622 to the second tentative portion 623 and is temporarily positioned at the second tentative portion 623. Thus, the first button body 210 is maintained in the second operating position.

When the second button body 310 is pressed again, the second end of the second locking piece 610 slides along the fourth guide portion 624 and the second slide-in and slide-out guide portion 621, and the second button body 310 returns to the first operating position under the action of the second spring 320.

With this structure, the second button body 310 can be temporarily set at the second operating position, thereby avoiding the second button body 310 from being pressed all the time at the time of fire extinguishment.

In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.

Claims

1. The utility model provides a handheld flame gun, includes rifle body, ignition and adjust knob, be provided with first passageway and each other not communicating fuel storage chamber and fire extinguishing raw materials storage chamber on the rifle body, its characterized in that: further comprises:

a first button assembly, the first button assembly comprising:

a second button assembly, the second button assembly comprising:

a fifth permanent magnet and a sixth permanent magnet, wherein a second mounting groove is formed in one side of the second button body facing the second sliding hole, the fifth permanent magnet and the sixth permanent magnet are arranged in the second mounting groove in parallel from the first end of the second button body to the second end, the magnetism of the opposite side of the fifth permanent magnet and the magnetism of the opposite side of the fourth permanent magnet are opposite, and the magnetism of the sixth permanent magnet and the magnetism of the opposite side of the fourth permanent magnet are the same;

also included is a locking structure comprising:

2. The hand-held flame gun of claim 1, wherein: further included is a first locking structure for retaining the first button body in different first and second operative positions, the first locking structure comprising:

3. The hand-held flame gun of claim 2, wherein: the second button body is provided with a second locking structure for holding the second button body in different first and second working positions, the second locking structure comprising: