A foldable flamethrower

Abstract

The present invention relates to a foldable flamethrower, comprising a bottle body, a chamber for storing gas is provided in the bottle body, a gun head body is hinged at the upper end of the bottle body; a first sliding hole is provided in the gun head body, an air pipe is connected to the first sliding hole along the axial direction of the first sliding hole; a flamethrower is fixedly provided at the end of the gun head body, and a flamethrower hole for the gas supply pipe to extend into is provided in the flamethrower; a gas valve assembly is provided in the bottle body, a locking assembly connected with the air pipe is provided in the gun head body; an ignition assembly is provided in the flamethrower in the gun head body. The advantages of the present invention are that the gun head can be folded and stored relative to the bottle body as needed, so as to facilitate carrying and transportation.

Description

Technical Field

[0001] The invention relates to the technical field of flamethrower guns, in particular to a foldable and storable flamethrower gun. Background Art

[0002] The flamethrower is a new outdoor product and a kind of outdoor cooking utensils. It is called "TORCH" abroad. It is an ignition and heating tool derived from the existing butane gas cylinder. Outdoor cooking utensils generally refer to stoves and fuel (butane gas cylinders) used for cooking and boiling water in the wild, which is very convenient to carry. The flamethrower replaces the function of the stove, freeing the flame from a fixed position, making it easy to ignite a campfire and bake food. The flamethrower includes a bottle body for storing gas and a gun head set on the bottle body. The existing flamethrower has a fixed structure, which is not easy to place during storage and transportation, occupies a large space, and is not easy to carry. Summary of the invention

[0003] Based on this, it is necessary to provide a foldable flamethrower to address the above problems, and the gun head can be folded and stored relative to the bottle body as needed to facilitate carrying and transportation.

[0004] The present invention discloses a foldable flamethrower, comprising a bottle body, wherein a chamber for storing gas is arranged in the bottle body, and a gun head body is hingedly connected to the upper end of the bottle body. When the gun head body is rotated to a first position, the gun head body is located at the upper end of the bottle body, and the flamethrower is in a working position; when the gun head body is reversely rotated 180 degrees to a second position, the gun head body is located on the left side of the bottle body and arranged side by side with the bottle body, and the flamethrower is in a storage position; a first sliding hole is arranged in the gun head body, and an air pipe is slidably connected in the first sliding hole along the axial direction of the first sliding hole; the end of the gun head body is fixed A flamethrower head is provided, wherein the flamethrower head is provided with a flamethrower hole into which an air supply pipe extends; an air valve assembly is provided in the bottle body, and a locking assembly connected to the air pipe is provided in the gun head body, wherein the locking assembly is used to lock the gun head body in a first position; when the locking assembly locks the gun head body in the first position, the locking assembly drives one end of the air pipe to extend downward into the bottle body and connect with the air valve assembly, and the combustible gas in the chamber enters the flamethrower hole through the air valve assembly and the air pipe; an ignition assembly is provided in the gun head body at the flamethrower head, wherein the ignition assembly is used to ignite the combustible gas in the flamethrower hole.

[0005] Through the above technical solution, when the flamethrower is in use, the gun head body is turned to the first position, and the locking assembly is controlled to lock the gun head body in the first position. At the same time, the locking assembly controls the air pipe to be connected with the air valve assembly, and the combustible gas in the chamber enters the flame-spraying hole through the air valve assembly and the air pipe; then the ignition assembly is controlled to ignite the combustible gas in the flame-spraying hole, and the normal operation of the flamethrower can be realized. When the flamethrower needs to be stored, the air pipe is first controlled to be disconnected from the air valve assembly through the locking assembly, and then the gun head body and the bottle body are unlocked through the locking assembly, and then the gun head body is reversely rotated 180° to the second position, and the flamethrower can be stored for easy carrying, transportation or storage.

[0006] Furthermore, the ignition assembly includes a piezoelectric igniter, which is fixedly installed in the gun head body, and a sliding groove is provided on the side of the gun head body, and a button is slidably connected in the sliding groove, and the button is fixedly connected to the pressing end of the piezoelectric igniter. When the gun head body is rotated to the second position, the button faces the left side of the bottle body; an ignition groove is provided on the side wall of the flame-spraying hole in the flame-spraying head, and an ignition head made of metal material is provided in the ignition groove, and a first spring for forcing the ignition head to flip into the flame-spraying hole, and the power output end of the piezoelectric igniter extends into the ignition groove; When the locking assembly is in the unlocking position, the locking assembly drives the air pipe to push the ignition head into the ignition groove. When the locking assembly is in the locking position, the locking assembly drives the air pipe to leave the ignition head, and the ignition head is flipped from the ignition groove into the flame-spraying hole under the action of the first spring. This arrangement enables, when the flamethrower is not in use, on the one hand, the air pipe to seal the ignition head in the ignition groove, so that ignition will not be achieved even if the piezoelectric igniter is pressed due to misoperation. On the other hand, when the flamethrower is stored, the button is between the gun head body and the bottle body, which can effectively prevent the button from being pressed due to misoperation, thereby further ensuring the safe use of the flamethrower.

[0007] Further, the locking assembly includes a locking screw, which is threadedly connected to the gun head body and is parallel to the air pipe, and the upper end of the bottle body is provided with a locking screw hole for the locking screw to be screwed into, and when the locking assembly locks the gun head body in the first position, the locking screw is screwed into the locking screw hole; a notch is provided on the side of the gun head body, and a knob fixedly connected to the locking screw is provided in the notch, and the knob is used to drive the locking screw to rotate, and an annular groove is provided on the circumferential outer side of the knob; a connecting groove for connecting the notch and the first sliding hole is provided in the gun head body, and a convex rod passing through the connecting groove and extending into the annular groove is fixedly provided on the outer side of the air pipe, and the knob drives the air pipe to move through the cooperation of the convex rod and the annular groove; this setting can realize the fixing of the gun head body in the first position through the cooperation of the locking screw and the locking screw hole, and in addition, the opening size of the air valve assembly can be adjusted by the depth of the locking screw screwed into the locking screw hole.

[0008] Furthermore, the air valve assembly includes a first slider, a second sliding hole is provided at the upper end of the bottle body, a screw plug is fixedly provided at the upper end of the second sliding hole, and the first slider is slidably connected to the second sliding hole; a plug hole is provided in the screw plug, and a protrusion is provided at the upper end of the first slider for extending into the plug hole; when the air pipe is connected to the air valve assembly, the air pipe is inserted into the plug hole, and when the air pipe is disconnected from the air valve assembly, the protrusion extends into the plug hole; a second spring is provided in the second sliding hole for forcing the first slider to be pressed against the screw plug; two sliding rods are slidably connected to the bottom of the second sliding hole in the bottle body along the movement direction of the first slider, the upper ends of the two sliding rods are located in the second sliding hole and are both provided with shoulders, and the two The lower end of the sliding rod is located in the chamber and is provided with a valve plate; an air head is fixedly provided at the bottom center position of the second sliding hole in the bottle body, and a third sliding hole for the air head to extend into is provided in the first sliding block and the protrusion, and when the air pipe is inserted into the jack, the air head is inserted into the air pipe; a valve hole for connecting the chamber and the air head is provided in the bottle body, and a valve core for opening or closing the valve hole is fixedly provided on the valve plate; a third spring is sleeved on each sliding rod in the second sliding hole, one end of the third spring abuts against the boss and the other end abuts against the bottom of the second sliding hole, and the third spring is used to force the sliding rod to drive the valve plate to move upward; when the first sliding block pushes the sliding rod to move downward, the valve plate drives the valve core to open the valve hole.

[0009] By means of the above technical scheme, when the air pipe is connected to the air valve assembly, the lower end of the air pipe is inserted downward into the insertion hole, and at the same time, the upper end of the gas head is inserted into the air pipe. When the air pipe continues to be inserted downward, the protrusion is pushed downward to leave the insertion hole, and the protrusion drives the first slider to move downward. When the lower end of the first slider hits the upper end of the slide rod, as the first slider continues to move downward, the slide rod drives the valve core to leave the lower end of the valve hole through the valve plate, so that the combustible gas in the chamber passes through the valve hole, the gas head, and the air pipe and enters the flame-spraying hole; in addition, as the distance of the air pipe moving downward increases, the area of ​​the valve hole opened by the valve core increases, and the amount of combustible gas entering the flame-spraying hole also increases at this time, so that the flame-spraying size can be adjusted; when the air pipe moves upward, the valve plate moves upward under the action of the third spring, and the valve core closes the valve hole until the valve core closes the valve hole. As the air pipe continues to move upward, the second spring drives the protrusion to extend upward into the insertion hole through the first slider. When the air pipe completely leaves the insertion hole, the gas head is disconnected from the air pipe.

[0010] Furthermore, the upper end of the bottle body is provided with a first slide groove along the left-right direction, the first slide groove is provided with a first slide plate along the left-right direction, the upper end of the bottle body is provided with a second slide groove on the right side of the first slide groove, and the right side of the first slide plate is provided with a second slide plate for extending into the second slide groove; the bottle body is provided with two third slide grooves connected with the first slide groove along the left-right direction on the left side of the first slide groove, and a plug is fixedly provided at the left end of each third slide groove; a third slide plate extending into the third slide groove is provided at the left end of the first slide plate; a fourth spring is provided in the third slide groove between the plug and the left end of the third slide plate, and the fourth The spring is used to force the third slide plate to move to the right; the right end of the second slide plate is provided with a first inclined surface; when the lower end of the air pipe moves downward, it abuts against the first inclined surface and pushes the second slide plate to move to the left; when the air pipe is disconnected from the air valve assembly, the second slide plate is blocked at the upper end of the socket; this arrangement enables the second slide plate to move to the right under the action of the fourth spring when the lower end of the air pipe leaves the socket, thereby blocking the socket and preventing dust and impurities from entering the socket; in addition, when the air pipe is inserted downward into the socket, the air pipe abuts against the first inclined surface and pushes the second slide plate to move to the left to open the socket to facilitate the insertion of the lower end of the air pipe.

[0011] Furthermore, the upper end of the bottle body is provided with two outer lugs side by side near the left side, a hinge shaft is fixedly provided between the two outer lugs, and the side surface of the gun head body is provided with two inner lugs extending between the outer lugs and rotatably connected with the hinge shaft; a cam is fixedly provided on the hinge shaft between the two inner lugs; a fourth slide groove is provided in the gun head body along the left and right directions, a fourth slide plate is slidably connected in the fourth slide groove along the left and right directions, an avoidance groove extending into the fourth slide plate with a locking screw is provided in the fourth slide plate along the left and right directions, and the left end of the fourth slide plate abuts against the cam; a fifth slide groove connected with the fourth slide groove is provided at the right end of the fourth slide groove in the gun head body, and a fifth slide plate located in the fifth slide groove is provided at the right end of the fourth slide plate; a sixth slide groove connected with the first slide hole is provided at the right end of the fifth slide groove in the gun head body, and a third slide plate for extending into the sixth slide groove is provided on the right side of the fifth slide plate Six slides; a fifth spring is provided between the fifth slide and the right side surface of the fifth slide in the fifth slide groove for forcing the fifth slide to move to the left; when the gun head body rotates to the first position, the fourth slide abuts against the base circular surface of the cam, and the sixth slide opens the lower end of the first slide hole; when the gun head body rotates to the second position, the fourth slide abuts against the convex surface of the cam, and the sixth slide blocks the lower end of the first slide hole; this arrangement enables, when the gun head body is folded and stored, under the action of the cam, the fourth slide drives the fifth slide to compress the fifth spring to the right, and the fifth slide drives the sixth slide to block the lower end of the first slide hole to the right, thereby preventing dust and impurities from entering the air pipe. Similarly, when the gun head body rotates to the first position, the fifth spring pushes the fifth slide to move to the left, and the fifth slide drives the sixth slide to open the lower end of the first slide hole, so that the air pipe can extend downward from the lower end of the first slide hole.

[0012] Furthermore, a first magnet is embedded on the left side surface of the bottle body, and a second magnet is embedded on the side surface of the gun head body. When the gun head body is rotated to the second position, the first magnet and the second magnet are attracted to each other. This arrangement ensures that the gun head body can be securely positioned when it is rotated to the second position through the mutual attraction of the first magnet and the second magnet, thereby making the folding and storage of the flamethrower more reliable.

[0013] The advantages of the present invention are:

[0014] (1) The gun head body rotates relative to the bottle body. When the gun head body rotates to the first position, the gun head body is located at the upper end of the bottle body, and the flame spray gun is in the working position; when the gun head body rotates 180° in the opposite direction to the second position, the gun head body is located on the left side of the bottle body and arranged side by side with the bottle body, and the flame spray gun is in the storage position for easy carrying or transportation;

[0015] (2) The locking assembly can not only lock the gun head body on the bottle body, but also control the size of the valve hole opened by the valve core, thereby adjusting the gas output;

[0016] (3) a second slide plate is provided to seal the plug hole when the air pipe is disconnected from the air valve assembly to prevent dust and impurities from entering the plug hole;

[0017] (4) By providing a cam, a fourth slide plate, a fifth slide plate, a sixth slide plate, and a fifth spring, when the gun head body is folded and stored, under the action of the cam, the fourth slide plate drives the fifth slide plate to the right to compress the fifth spring, and the fifth slide plate drives the sixth slide plate to the right to block the lower end of the first slide hole, thereby preventing dust and impurities from entering the air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main cross-sectional view of the flame spray gun of the present invention when it is in the working position and the valve hole is opened;

[0019] Figure 2 It is a main cross-sectional view of the flame spray gun of the present invention when it is in the working position and the valve hole is closed;

[0020] Figure 3 It is a main cross-sectional view of the flame spray gun of the present invention when it is in the working position and the lower end of the air pipe is completely retracted into the first sliding hole;

[0021] Figure 4 It is a main cross-sectional view of the flamethrower of the present invention when it is folded and stored;

[0022] Figure 5 for Figure 1 Sectional view at AA;

[0023] Figure 6 for Figure 1 Sectional view at the middle BB;

[0024] Figure 7 for Figure 1 Sectional view at CC;

[0025] Figure 8 for Figure 2 Sectional view at DD in the middle;

[0026] Fig. 9 for Figure 1 A local enlarged view of the H position;

[0027] Fig.10 for Figure 1 A local enlarged view of point I;

[0028] Fig.11 for Figure 2 A local enlarged view of J;

[0029] Fig.12 for Figure 4 A local enlarged view of point F;

[0030] Fig.13 It is a structural diagram of the first slide plate, the second slide plate and the third slide plate in the present invention.

[0031] Fig.14 It is a structural diagram of the fourth slide plate, the fifth slide plate and the sixth slide plate in the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0034] like Figures 1 to 14As shown, the present invention discloses a foldable flamethrower, comprising a bottle body 1, wherein a chamber 101 for storing gas is provided in the bottle body 1, a gun head body 2 is hingedly connected to the upper end of the bottle body 1, when the gun head body 2 is rotated to a first position, the gun head body 2 is located at the upper end of the bottle body 1, and the flamethrower is in a working position; when the gun head body 2 is reversely rotated 180° to a second position, the gun head body 2 is located on the left side of the bottle body 1 and arranged side by side with the bottle body 1, and the flamethrower is in a storage position; a first sliding hole 2a is provided in the gun head body 2, and an air pipe 3 is slidably connected to the first sliding hole 2a along the axial direction of the first sliding hole 2a, and the air pipe 3 is made of insulating material; the gun A flamethrower head 4 is fixedly provided at the end of the head body 2, and a flamethrower hole 4a is provided in the flamethrower head 4 into which the gas supply pipe 3 extends; an air valve assembly is provided in the bottle body 1, and a locking assembly connected to the air pipe 3 is provided in the gun head body 2, and the locking assembly is used to lock the gun head body 2 in the first position; when the locking assembly locks the gun head body 2 in the first position, the locking assembly drives one end of the air pipe 3 to extend downward into the bottle body 1 and is connected to the air valve assembly, and the combustible gas in the chamber 101 enters the flamethrower hole 4a through the air valve assembly and the air pipe 3; an ignition assembly is provided in the flamethrower head 4 in the gun head body 2, and the ignition assembly is used to ignite the combustible gas in the flamethrower hole 4a.

[0035] Preferably, the ignition assembly includes a piezoelectric igniter 5, the piezoelectric igniter 5 is fixedly installed in the gun head body 2, the side of the gun head body 2 is provided with a sliding groove 2b, a button 6 is slidably connected in the sliding groove 2b, the button 6 is fixedly connected to the pressing end of the piezoelectric igniter 5, when the gun head body 2 is rotated to the second position, the button 6 is facing the left side of the bottle body 1; the flame head 4 is provided with an ignition groove 4b on the side wall of the flame hole 4a, and the ignition groove 4b is provided There is an ignition head 7 made of metal material, and a first spring 8 for forcing the ignition head 7 to flip into the flame hole 4a, and the power output end of the piezoelectric igniter 5 extends into the ignition groove 4b; when the locking assembly is in the unlocking position, the locking assembly drives the air pipe 3 to push the ignition head 7 into the ignition groove 4b, and when the locking assembly is in the locking position, the locking assembly drives the air pipe 3 to leave the ignition head 7, and the ignition head 7 is flipped from the ignition groove 4b into the flame hole 4a under the action of the first spring 8.

[0036] In addition, the locking assembly includes a locking screw 9, which is threadedly connected in the gun head body 2 and is parallel to the air pipe 3. The upper end of the bottle body 1 is provided with a locking screw hole 1a for the locking screw 9 to be screwed in. When the locking assembly locks the gun head body 2 in the first position, the locking screw 9 is screwed into the locking screw hole 1a; a notch 2c is provided on the side of the gun head body 2, and a knob 10 fixedly connected to the locking screw 9 is provided in the notch 2c. The knob 10 is used to drive the locking screw 9 to rotate, and an annular groove 10a is provided on the circumferential outer side of the knob 10; A connecting groove 2d for connecting the notch 2c and the first sliding hole 2a is provided in the head body 2, and a protruding rod 11 passing through the connecting groove 2d and extending into the annular groove 10a is fixedly provided on the outer side of the air pipe 3. The protruding rod 11 and the air pipe 3 are fixed together by glue, and the knob 10 drives the air pipe 3 to move through the cooperation of the protruding rod 11 and the annular groove 10a; this arrangement can achieve the fixing of the gun head body 2 in the first position through the cooperation of the locking screw 9 and the locking screw hole 1a. In addition, the opening size of the air valve assembly can be adjusted by the depth of the locking screw 9 screwed into the locking screw hole 1a.

[0037] In this embodiment, the air valve assembly includes a first slider 12, a second sliding hole 1b is provided at the upper end of the bottle body 1, a screw plug 13 is fixedly provided at the upper end of the second sliding hole 1b, and the first slider 12 is slidably connected in the second sliding hole 1b; a plug hole 13a is provided in the plug hole 13, and a protrusion 121 for extending into the plug hole 13a is provided at the upper end of the first slider 12; when the air pipe 3 is connected to the air valve assembly, the air pipe 3 is inserted into the plug hole 13a, and when the air pipe 3 is disconnected from the air valve assembly, the protrusion 121 extends into the plug hole 13a; a second spring 14 for forcing the first slider 12 to be pressed against the screw plug 13 is provided in the second sliding hole 1b; two sliding rods 15 are slidably connected at the bottom of the second sliding hole 1b in the bottle body 1 along the movement direction of the first slider 12, the upper ends of the two sliding rods 15 are located in the second sliding hole 1b and are both provided with a boss 151, and the lower ends of the two sliding rods 15 A valve plate 16 is provided in the chamber 101; an air head 17 is fixedly provided at the bottom center of the second sliding hole 1b in the bottle body 1; a third sliding hole 12a for the air head 17 to extend into is provided in the first slider 12 and the protrusion 121; when the air pipe 3 is inserted into the insertion hole 13a, the air head 17 is inserted into the air pipe 3; a valve hole 1c for connecting the chamber 101 and the air head 17 is provided in the bottle body 1; a valve core 161 for opening or closing the valve hole 1c is fixedly provided on the valve plate 16; a third spring 18 is sleeved on each sliding rod 15 in the second sliding hole 1b, one end of the third spring 18 abuts against the convex shoulder 151 and the other end abuts against the bottom of the second sliding hole 1b, and the third spring 18 is used to force the sliding rod 15 to drive the valve plate 16 to move upward; when the first slider 12 pushes the sliding rod 15 to move downward, the valve plate 16 drives the valve core 161 to open the valve hole 1c.

[0038] In this embodiment, the upper end of the bottle body 1 is provided with a first slide groove 1d along the left-right direction, and a first slide plate 19 is provided in the first slide groove 1d along the left-right direction. The upper end of the bottle body 1 is provided with a second slide groove 1e on the right side of the first slide groove 1d, and a second slide plate 20 for extending into the second slide groove 1e is provided on the right side of the first slide plate 19; two third slide grooves 1f connected to the first slide groove 1d are provided in the bottle body 1 on the left side of the first slide groove 1d along the left-right direction, and a plug 21 is fixedly provided at the left end of each third slide groove 1f; The left end of the first slide plate 19 is provided with a third slide plate 22 extending into the third slide groove 1f; a fourth spring 23 is provided in the third slide groove 1f between the plug 21 and the left end of the third slide plate 22, and the fourth spring 23 is used to force the third slide plate 22 to move to the right; the right end of the second slide plate 20 is provided with a first inclined surface 20a; when the lower end of the air pipe 3 moves downward, it contacts the first inclined surface 20a and pushes the second slide plate 20 to move to the left; when the air pipe 3 is disconnected from the air valve assembly, the second slide plate 20 is blocked at the upper end of the socket 13a.

[0039] In this embodiment, the upper end of the bottle body 1 is provided with two outer lugs 102 side by side near the left side, a hinge shaft 24 is fixedly provided between the two outer lugs 102, and the side of the gun head body 2 is provided with two inner lugs 201 extending between the outer lugs 102 and rotatably connected to the hinge shaft 24; a cam 25 is fixedly provided between the two inner lugs 201 on the hinge shaft 24; a fourth slide groove 2e is provided in the gun head body 2 along the left and right directions, a fourth slide plate 26 is slidably connected in the fourth slide groove 2e along the left and right directions, an avoidance groove 26a is provided in the fourth slide plate 26 along the left and right directions into which a locking screw 9 is extended, and the left end of the fourth slide plate 26 abuts against the cam 25; a fifth slide groove 2e is provided at the right end of the fourth slide groove 2e in the gun head body 2, which is connected to the fourth slide groove 2e. f, a fifth slide plate 27 located in the fifth slide groove 2f is provided at the right end of the fourth slide plate 26; a sixth slide groove 2g connected to the first slide hole 2a is provided at the right end of the fifth slide groove 2f in the gun head body 2, and a sixth slide plate 28 for extending into the sixth slide groove 2g is provided on the right side of the fifth slide plate 27; a fifth spring 29 for forcing the fifth slide plate 27 to move left is provided between the right side surfaces of the fifth slide plate 27 and the fifth slide groove 2f in the fifth slide groove 2f; when the gun head body 2 rotates to the first position, the fourth slide plate 26 abuts against the base circular surface of the cam 25, and the sixth slide plate 28 opens the lower end of the first slide hole 2a; when the gun head body 2 rotates to the second position, the fourth slide plate 26 abuts against the convex surface of the cam 25, and the sixth slide plate 28 blocks the lower end of the first slide hole 2a.

[0040] In this embodiment, a first magnet 30 is embedded on the left side surface of the bottle body 1, and a second magnet 31 is embedded on the side surface of the gun head body 2. When the gun head body 2 is rotated to the second position, the first magnet 30 and the second magnet 31 are attracted to each other. This arrangement ensures that the gun head body 2 can be securely positioned when it is rotated to the second position through the mutual attraction of the first magnet 30 and the second magnet 31, thereby making the folding and storage of the flamethrower more reliable.

[0041] When the flamethrower of the present invention is used for flamethrowing, the gun head body 2 is rotated to the first position. At this time, the gun head body 2 is located at the upper end of the bottle body 1, the flamethrower is in the working position, the fourth slide plate 26 abuts against the base circular surface of the cam 25, the fifth spring 29 pushes the fifth slide plate 27 to move leftward, and the fifth slide plate 27 drives the sixth slide plate 28 to open the lower end of the first slide hole 2a; then the knob 10 is turned by hand, the knob 10 drives the locking screw 9 to rotate, and the lower end of the locking screw 9 is screwed into the locking screw hole 1a, thereby locking the gun head body 2 in the first position, and the knob 10 moves downward. When the air pipe 3 is moved downward by the cooperation between the annular groove 10a and the protruding rod 11, the air pipe 3 leaves the ignition head 7, and the ignition head 7 is turned over from the ignition groove 4b into the flame-spraying hole 4a under the action of the first spring 8; then the knob 10 is continuously turned to drive the locking screw 9 to rotate, and the locking screw 9 continues to be screwed into the locking screw hole 1a. When the knob 10 moves downward, the protruding rod 11 continues to drive the air pipe 3 to move downward and extend out of the lower end of the first sliding hole 2a; when the lower end of the air pipe 3 contacts the first inclined surface 20a, as the air pipe 3 continues to move downward, the second slide plate 20 is pushed to move leftward. When the second slide plate 20 moves to the left, the insertion hole 13a is opened, and at the same time, the third slide plate 22 is pushed by the first slide plate 19 to compress the fourth spring 23; the air pipe 3 continues to move downward and is inserted into the insertion hole 13a. At the same time, the upper end of the air head 17 is inserted into the air pipe 3. When the air pipe 3 continues to be inserted downward, the protrusion 121 is pushed downward to leave the insertion hole 13a, and the protrusion 121 drives the first slider 12 to move downward. When the lower end of the first slider 12 hits the upper end of the slide rod 15, as the first slider 12 continues to move downward, the slide rod 15 drives the valve core 161 to leave the valve through the valve plate 16. The lower end of the hole 1c is controlled by the button 6, so that the combustible gas in the chamber 101 passes through the valve hole 1c, the gas head 17, and the gas pipe 3 into the flame spray hole 4a; the button 6 is pressed to control the piezoelectric igniter 5 to discharge the combustible gas through the first spring 8 and the ignition head 7 to ignite the combustible gas, thereby realizing the ignition of the flame spray gun; when it is necessary to increase the flame spray, the gas pipe 3 is controlled to continue to move downward by the knob 10, thereby controlling the valve core 161 to open the lower end of the valve hole 1c further. Similarly, when it is necessary to reduce the flame spray, the gas pipe 3 is controlled to move upward by the knob 10, thereby controlling the valve core 161 to close the lower end of the valve hole 1c.

[0042] When the flamethrower of the present invention is folded and stored, the knob 10 is first turned to rotate in the opposite direction. The knob 10 drives the air pipe 3 to move upward through the cooperation of the annular groove 10a and the protruding rod 11. When the air pipe 3 moves upward, the valve plate 16 moves upward under the action of the third spring 18, and the valve core 161 closes the valve hole 1c until the valve core 161 closes the valve hole 1c. As the air pipe 3 continues to move upward, the second spring 14 drives the protruding block 121 to extend upward into the insertion hole 13a through the first sliding block 12. When the air pipe 3 completely leaves the insertion hole 13a, the gas head 17 is disconnected from the air pipe 3. At the same time, as the air pipe 3 continues to move upward, the second sliding block 20 moves to the right under the action of the fourth spring 23, so that the insertion hole 13a can be blocked to prevent Dust and impurities enter the jack 13a; when the locking assembly is in the unlocked position, the upper end of the air pipe 3 pushes the ignition head 7 into the ignition groove 4b, and the lower end of the air pipe 3 is completely retracted into the first slide hole 2a; the gun head body 2 is controlled to rotate 180° in the opposite direction to the second position, at which time the first magnet 30 and the second magnet 31 attract each other, and the flamethrower is in the storage position. At the same time, under the action of the cam 25, the fourth slide 26 drives the fifth slide 27 to compress the fifth spring 29 to the right, and the fifth slide 27 drives the sixth slide 28 to the right to block the lower end of the first slide hole 2a, thereby preventing dust and impurities from entering the air pipe 3; in addition, the button 6 is located between the gun head body 2 and the bottle body 1, which can effectively prevent the button 6 from being pressed by mistake.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A foldable flamethrower, comprising a bottle body, wherein the bottle body is provided with a chamber for storing gas, characterized in that: The upper end of the bottle body is hinged with a gun head body. When the gun head body is rotated to the first position, the gun head body is located at the upper end of the bottle body, and the flamethrower is in the working position; when the gun head body is reversely rotated 180° to the second position, the gun head body is located on the left side of the bottle body and arranged side by side with the bottle body, and the flamethrower is in the storage position; a first sliding hole is provided in the gun head body, and an air pipe is connected to the first sliding hole along the axial direction of the first sliding hole; a flamethrower head is fixedly provided at the end of the gun head body, and an air supply pipe is provided in the flamethrower head to extend into a flame-spraying hole; a gas valve assembly is provided in the bottle body, a locking assembly connected to the air pipe is provided in the gun head body, and the locking assembly is used to lock the gun head body in the first position; when the locking assembly locks the gun head body in the first position, the locking assembly drives one end of the air pipe to extend downward into the bottle body and connect with the gas valve assembly, and the combustible gas in the chamber enters the flame-spraying hole through the gas valve assembly and the air pipe; an ignition assembly is provided in the gun head body at the flame-spraying head, and the ignition assembly is used to ignite the combustible gas in the flame-spraying hole; The locking assembly includes a locking screw, which is threadedly connected to the gun head body and is parallel to the air pipe. The upper end of the bottle body is provided with a locking screw hole for the locking screw to be screwed into. When the locking assembly locks the gun head body in the first position, the locking screw is screwed into the locking screw hole; a notch is provided on the side of the gun head body, and a knob fixedly connected to the locking screw is provided in the notch, and the knob is used to drive the locking screw to rotate, and an annular groove is provided on the circumferential outer side of the knob; a connecting groove for connecting the notch and the first sliding hole is provided in the gun head body, and a convex rod passing through the connecting groove and extending into the annular groove is fixedly provided on the outer side of the air pipe, and the knob drives the air pipe to move through the cooperation of the convex rod and the annular groove; The air valve assembly includes a first slider, a second sliding hole is provided at the upper end of the bottle body, a screw plug is fixedly provided at the upper end of the second sliding hole, and the first slider is slidably connected to the second sliding hole; a plug hole is provided in the screw plug, and a protrusion is provided at the upper end of the first slider for extending into the plug hole; when the air pipe is connected to the air valve assembly, the air pipe is inserted into the plug hole, and when the air pipe is disconnected from the air valve assembly, the protrusion extends into the plug hole; a second spring is provided in the second sliding hole for forcing the first slider to be pressed against the screw plug; two sliding rods are slidably connected to the bottom of the second sliding hole in the bottle body along the movement direction of the first slider, the upper ends of the two sliding rods are located in the second sliding hole and are both provided with shoulders, and the two sliding rods The lower end is located in the chamber and is provided with a valve plate; an air head is fixedly provided at the bottom center position of the second sliding hole in the bottle body, and a third sliding hole for the air head to extend into is provided in the first sliding block and the protrusion, and when the air pipe is inserted into the jack, the air head is inserted into the air pipe; a valve hole for connecting the chamber and the air head is provided in the bottle body, and a valve core for opening or closing the valve hole is fixedly provided on the valve plate; a third spring is sleeved on each sliding rod in the second sliding hole, one end of the third spring abuts on the boss and the other end abuts on the bottom of the second sliding hole, and the third spring is used to force the sliding rod to drive the valve plate to move upward; when the first sliding block pushes the sliding rod to move downward, the valve plate drives the valve core to open the valve hole.

2. The foldable flamethrower according to claim 1, characterized in that: The ignition assembly includes a piezoelectric igniter, which is fixedly installed in a gun head body, a sliding groove is provided on the side of the gun head body, a button is slidably connected in the sliding groove, and the button is fixedly connected to the pressing end of the piezoelectric igniter. When the gun head body is rotated to the second position, the button is opposite to the left side of the bottle body; an ignition groove is provided on the side wall of the flame-spraying hole in the flame-spraying head, an ignition head made of metal material is provided in the ignition groove, and a first spring for forcing the ignition head to flip into the flame-spraying hole, and the power output end of the piezoelectric igniter extends into the ignition groove; when the locking assembly is in the unlocking position, the locking assembly drives the air pipe to push the ignition head into the ignition groove, and when the locking assembly is in the locking position, the locking assembly drives the air pipe to leave the ignition head, and the ignition head flips from the ignition groove into the flame-spraying hole under the action of the first spring.

3. The foldable flamethrower according to claim 1, characterized in that: The upper end of the bottle body is provided with a first slide groove along the left and right directions, and a first slide plate is provided in the first slide groove along the left and right directions, and the upper end of the bottle body is provided with a second slide groove on the right side of the first slide groove, and a second slide plate for extending into the second slide groove is provided on the right side of the first slide groove; two third slide grooves connected with the first slide groove are provided in the bottle body on the left side of the first slide groove along the left and right directions, and a plug is fixedly provided at the left end of each third slide groove; a third slide plate extending into the third slide groove is provided at the left end of the first slide plate; a fourth spring is provided between the plug and the left end of the third slide plate in the third slide groove, and the fourth spring is used to force the third slide plate to move to the right; a first inclined surface is provided at the right end of the second slide plate; when the lower end of the air pipe moves downward, it contacts the first inclined surface to push the second slide plate to move to the left; when the air pipe is disconnected from the air valve assembly, the second slide plate is blocked at the upper end of the jack.

4. The foldable flamethrower according to claim 1, characterized in that: The upper end of the bottle body is provided with two outer lugs side by side near the left side, a hinge shaft is fixed between the two outer lugs, and the side of the gun head body is provided with two inner lugs extending between the outer lugs and rotatably connected to the hinge shaft; a cam is fixed on the hinge shaft between the two inner lugs; a fourth slide groove is provided in the gun head body along the left and right directions, a fourth slide plate is slidably connected in the fourth slide groove along the left and right directions, an avoidance groove is provided in the fourth slide plate along the left and right directions with a locking screw extending therein, and the left end of the fourth slide plate abuts against the cam; a fifth slide groove connected to the fourth slide groove is provided at the right end of the fourth slide groove in the gun head body, A fifth slide is provided at the right end of the fourth slide, which is located in the fifth slide groove; a sixth slide groove connected to the first slide hole is provided at the right end of the fifth slide groove in the gun head body, and a sixth slide groove for extending into the sixth slide groove is provided on the right side of the fifth slide groove; a fifth spring for forcing the fifth slide groove to move to the left is provided between the fifth slide groove and the right side surface of the fifth slide groove; when the gun head body rotates to the first position, the fourth slide groove abuts against the base circular surface of the cam, and the sixth slide groove opens the lower end of the first slide hole; when the gun head body rotates to the second position, the fourth slide groove abuts against the convex surface of the cam, and the sixth slide groove blocks the lower end of the first slide hole.

5. The foldable flamethrower according to claim 1, characterized in that: A first magnet is embedded on the left side surface of the bottle body, and a second magnet is embedded on the side surface of the gun head body. When the gun head body is rotated to the second position, the first magnet and the second magnet are attracted to each other.

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