Ignition gun

Abstract

The utility model relates to an ignition gun. Comprising a liquid storage tank provided with a liquid storage cavity used for storing combustible liquid; the starting mechanism comprises a key and a crow plate, the key is arranged on the liquid storage tank in a sliding mode, and the key can press the crow plate; the piezoelectric mechanism is arranged in the liquid storage tank and is connected with the crow plate; the gas guide mechanism comprises a liquid guide pipe and a gas outlet needle, the liquid guide pipe sucks liquid from the liquid storage cavity, and the gas outlet needle abuts against the crow plate, can slide relative to the liquid guide pipe and converts the liquid into gas; the mounting mechanism is connected with the liquid storage tank; the ignition mechanism comprises an ignition assembly and a gun barrel which can conduct electricity and are opposite in polarity, the ignition assembly is arranged in the installation mechanism in a penetrating mode, a gas guide channel exists in the ignition assembly and / or between the ignition assembly and the installation mechanism, and the gun barrel is arranged on the installation mechanism; when the key pushes the crow plate to move close to the ignition assembly by a set distance, the piezoelectric mechanism generates electric charges, and electric sparks are generated between the gun barrel and the ignition assembly to ignite gas in the gas guide channel, so that the assembly efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of ignition guns, and in particular to an ignition gun. Background Art

[0002] Ignition guns can ignite other objects by burning liquefied combustible gas. However, traditional ignition guns usually have a complex structure, which increases the difficulty of assembly during the production process and ultimately affects assembly efficiency. Summary of the invention

[0003] A technical problem solved by the present application is how to simplify the structure of the ignition gun.

[0004] An ignition gun, comprising:

[0005] A liquid storage tank, provided with a liquid storage cavity for storing flammable liquid;

[0006] The starting mechanism comprises a button and a pry plate, wherein the button is slidably arranged on the liquid storage tank, and the button can press the pry plate;

[0007] A piezoelectric mechanism, disposed in the liquid storage tank and connected to the pry plate;

[0008] The gas guide mechanism comprises a liquid guide tube and a gas outlet needle, wherein the liquid guide tube draws liquid from the liquid storage chamber, and the gas outlet needle abuts against the pry plate and can slide relative to the liquid guide tube and convert the liquid into gas;

[0009] A mounting mechanism connected to the liquid storage tank; and

[0010] An ignition mechanism, comprising an ignition assembly capable of conducting electricity with opposite polarities and a gun barrel, wherein the ignition assembly is inserted into the mounting mechanism, an air guide channel is provided in the ignition assembly and / or between the ignition assembly and the mounting mechanism, and the gun barrel is provided on the mounting mechanism;

[0011] When the button pushes the pry plate to move close to the ignition assembly for a set distance, the piezoelectric mechanism generates an electric charge, and an electric spark is generated between the gun barrel and the ignition assembly to ignite the combustible gas in the gas guide channel.

[0012] In one embodiment, the ignition assembly includes a connecting rod and an ignition unit, the connecting rod is closer to the air outlet needle than the ignition unit, a first channel is formed between the connecting rod and the mounting mechanism, the ignition unit forms a second channel connected to the first channel, and the air guide channel includes the first channel and the second channel.

[0013] In one embodiment, the mounting mechanism is provided with a mounting cavity, the connecting rod is clearance-fitted with the mounting cavity, both ends of the connecting rod are provided with external chamfers, and the ignition assembly is interference-fitted with the mounting cavity.

[0014] In one of the embodiments, a groove is formed on the outer peripheral surface of the connecting rod, and the mounting mechanism blocks the opening of the groove so that the groove forms the first channel.

[0015] In one of the embodiments, when the distance between the pry plate and the connecting rod is smaller than a set value, an electric spark is generated between the barrel and the ignition assembly.

[0016] In one embodiment, the installation mechanism includes a clamp tube and a joint, the joint is inserted into the clamp tube and has an interference fit with the inner cavity of the clamp tube, a first step surface is provided in the clamp tube, and the joint abuts against the first step surface along the axial direction of the clamp tube.

[0017] In one embodiment, the connector is provided with a first connecting hole and a second connecting hole which are interconnected, the aperture of the first connecting hole is larger than the aperture of the second connecting hole, the connector is provided with a second step surface at the connection point between the first connecting hole and the second connecting hole, the ignition assembly cooperates with the first connecting hole and abuts against the second step surface, the air outlet needle cooperates with the second connecting hole, and the first connecting hole and the second connecting hole are provided with inner chamfers at one end away from each other.

[0018] In one embodiment, the clamp tube includes a tube shell, a convex rib, a guide rib and a positioning ring, the ignition assembly is inserted into the tube shell, the convex rib is protrudingly arranged on the outer surface of the tube shell and extends a set length along the axial direction of the tube shell, the positioning ring is sleeved on the tube shell, the gun barrel is sleeved outside the convex rib and abuts against the positioning ring along the axial direction of the tube shell, the guide rib is protrudingly arranged on the outer surface of the tube shell and extends a set length along the axial direction of the tube shell, and the guide rib is snap-connected to the liquid storage tank.

[0019] In one embodiment, the gun barrel includes a tube body and a firing piece, the tube body is sleeved on a mounting assembly, the firing piece is located in an inner cavity of the tube body and connected to the tube body, the firing piece extends a certain length toward the ignition assembly, and a vent hole corresponding to the ignition assembly and connecting the inner cavity of the tube body and the outside is opened on the tube body.

[0020] In one of the embodiments, one of the gun barrel and the mounting mechanism is provided with a protrusion and the other is provided with a clamping hole, and the protrusion cooperates with the clamping hole.

[0021] A technical effect of an embodiment of the present application is: on the one hand, in view of the presence of an air-conducting channel in the ignition assembly and / or between the ignition assembly and the mounting mechanism, gas is allowed to flow in the air-conducting channel, i.e., the ignition assembly has an air-conducting function; on the other hand, the ignition assembly has an electrical conductivity. Therefore, the ignition assembly has both an air-conducting function and an electrical conductivity function, so that it is possible to avoid having to provide different components to generate the air-conducting and electrical conductivity functions, thereby reducing the number of parts of the ignition gun to simplify the structure of the ignition gun, and ultimately improving the assembly efficiency and assembly accuracy of the ignition gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of an ignition gun provided in an embodiment.

[0023] Figure 2 for Figure 1 A schematic diagram of the planar cross-sectional structure of the ignition gun shown.

[0024] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0025] Figure 4 for Figure 1 A schematic diagram of the three-dimensional cross-sectional structure of the ignition gun shown.

[0026] Figure 5 for Figure 1 A schematic diagram of the partial exploded structure of the ignition gun shown.

[0027] Figure 6 for Figure 1 The cross-sectional structure diagram of the connecting rod in the ignition gun shown.

[0028] Figure 7 for Figure 1 The schematic diagram of the planar cross-sectional structure of the ignition gun before the flame is generated is shown.

[0029] Figure 8 for Figure 1 The schematic diagram of the planar cross-sectional structure of the ignition gun after the flame is generated is shown.

[0030] Reference numerals: ignition gun 10, liquid 20, liquid storage tank 100, liquid storage chamber 110, starting mechanism 200, button 210, pry plate 220, piezoelectric mechanism 300, first piezoelectric part 310, second piezoelectric part 320, gas guide mechanism 400, liquid guide tube 410, gas outlet needle 420, third step surface 421, installation mechanism 500, clamping tube 510, first step surface 511, tube shell 512, convex rib 513, guide rib 514, positioning ring 515, protrusion 5 16. Joint 520, convex strip 521, first connecting hole 522, second connecting hole 523, second step surface 524, mounting cavity 530, ignition mechanism 600, ignition assembly 610, connecting rod 611, groove 6111, first channel 6112, ignition unit 612, ignition needle 6121, spring 6122, second channel 6123, barrel 620, tube body 621, vent hole 6211, clamp hole 6212, ignition part 622, gas guide channel 630. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of the present application, an ignition gun 10 includes a liquid storage tank 100, a starting mechanism 200, a piezoelectric mechanism 300, a gas guide mechanism 400, a mounting mechanism 500 and an ignition mechanism 600. The starting mechanism 200, the piezoelectric mechanism 300, the gas guide mechanism 400, the mounting mechanism 500 and the ignition mechanism 600 are all arranged on the liquid storage tank 100, and the liquid storage tank 100 can be used as a carrier for the starting mechanism 200, the piezoelectric mechanism 300, the gas guide mechanism 400, the mounting mechanism 500 and the ignition mechanism 600. The liquid storage tank 100 is provided with a liquid storage cavity 110, and the liquid storage cavity 110 is used to store a flammable liquid 20. The liquid storage cavity 110 has good sealing performance, which can prevent the liquid 20 (such as Figure 7 ) leaks out of the liquid storage chamber 110.

[0038] See also Figure 2 In some embodiments, the piezoelectric mechanism 300 is disposed in the liquid storage tank 100. The piezoelectric mechanism 300 may include a first piezoelectric portion 310 and a second piezoelectric portion 320. The first piezoelectric portion 310 and the second piezoelectric portion 320 are both conductive and have opposite polarities. For example, the first piezoelectric portion 310 may be regarded as a positive electrode and the second piezoelectric portion may be regarded as a negative electrode. The first piezoelectric portion 310 is slidably disposed on the second piezoelectric portion 320. When the first piezoelectric portion 310 slides relative to the second piezoelectric portion 320, the first piezoelectric portion 310 impacts the piezoelectric ceramic of the second piezoelectric portion 320 to generate electric charge.

[0039] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the start mechanism 200 includes a button 210 and a pry plate 220. The button 210 is slidably disposed on the liquid storage tank 100. When a user applies a pressing force to the button 210, the button 210 will slide relative to the liquid storage tank 100. The pry plate 220 can be connected to the first piezoelectric part 310 of the piezoelectric mechanism 300. The pry plate 220 can rotate with the first piezoelectric part 310 as a fulcrum. The pry plate 220 can actually be understood as a lever structure. When the button 210 slides downward and contacts one end of the pry plate 220, the pry plate 220 will rotate relative to the first piezoelectric part 310.

[0040] See also Figure 2 and Figure 3 In some embodiments, the gas guide mechanism 400 includes a liquid guide tube 410 and an air outlet needle 420. One end of the liquid guide tube 410 can be inserted into the liquid storage chamber 110, and the other end of the air outlet needle 420 can be slidably connected to the liquid guide tube 410. The end of the pry plate 220 abuts against the air outlet needle 420 along the axial direction of the liquid guide tube 410. When the button 210 slides downward and contacts one end of the pry plate 220, the pry plate 220 will rotate relative to the first piezoelectric part 310, and the other end of the pry plate 220 will push the air outlet needle 420 to slide upward relative to the liquid guide tube 410 for a certain distance, so that the liquid 20 in the liquid guide tube 410 is converted into gas and output through the air outlet needle 420.

[0041] See also Figure 2 , Figure 3 , Figure 4 and Figure 5In some embodiments, the installation mechanism 500 includes a clamp tube 510 and a connector 520, and the clamp tube 510 and the connector 520 together enclose an installation cavity 530. The clamp tube 510 and the connector 520 are both made of insulating materials, and the connector 520 is inserted into the clamp tube 510 so that the connector 520 and the inner cavity of the clamp tube 510 have an interference fit. For example, the connector 520 includes a convex strip 521, and a recessed groove is formed on the inner wall of the clamp tube 510, and the convex strip 521 cooperates with the recessed groove, so that the connection strength and sealing performance between the connector 520 and the clamp tube 510 can be further enhanced. Of course, the clamp tube 510 can also be inserted into the connector 520 so that the inner cavity of the clamp tube 510 and the connector 520 have an interference fit. A first step surface 511 is provided in the clamp tube 510. The first step surface 511 may be an annular surface and is provided at an angle with the axial direction of the clamp tube 510. For example, the first step surface 511 may be perpendicular to the axial direction of the clamp tube 510. When the connector 520 is inserted into the clamp tube 510, the end of the connector 520 will abut against the first step surface 511. In this way, the first step surface 511 can axially position the connector 520, thereby improving the assembly efficiency and assembly accuracy of the connector 520.

[0042] See also Figure 2 , Figure 3 , Figure 4 and Figure 5In some embodiments, the connector 520 is provided with a first connection hole 522 and a second connection hole 523, and both the first connection hole 522 and the second connection hole 523 are configured as a part of the installation cavity 530, and the inner cavity of the clamp tube 510 except the part filled by the connector 520 can be configured as another part of the installation cavity 530. The first connection hole 522 and the second connection hole 523 are connected to each other, for example, the first connection hole 522 and the second connection hole 523 can be coaxially arranged. The aperture of the first connection hole 522 can be larger than the aperture of the second connection hole 523. The connector 520 is provided with a second step surface 524, which is located at the connection point between the first connection hole 522 and the second connection hole 523. The second step surface 524 can be an annular surface and is set at an angle with the axial direction of the connector 520. For example, the second step surface 524 can be perpendicular to the axial direction of the connector 520. The ignition component 610 cooperates with the first connection hole 522. When the ignition component 610 is inserted into the first connection hole 522 and cooperates with the first connection hole 522, the ignition component 610 can abut against the second step surface 524, so that the second step surface 524 can axially position the ignition component 610, thereby improving the assembly efficiency and assembly accuracy of the ignition component 610. The end of the air outlet needle 420 away from the liquid storage chamber 110 can be inserted into the second connection hole 523, so that the air outlet needle 420 is slidably set in the second connection hole 523, that is, the pry plate 220 can push the air outlet needle 420 to slide in the second connection hole 523 to approach the ignition component 610. A third step surface 421 may be provided on the outlet needle 420. The third step surface 421 may be an annular surface and may be provided at an angle to the axial direction of the outlet needle 420. For example, the third step surface 421 may be perpendicular to the axial direction of the outlet needle 420. The pry plate 220 abuts against the third step surface 421. The third step surface 421 may limit the pry plate 220 along the axial direction of the outlet needle 420, so that the pry plate 220 drives the outlet needle 420 to slide in the second connecting hole 523 through the third step surface 421.

[0043] See also Figure 2 , Figure 3 , Figure 4 and Figure 5, the ends of the first connection hole 522 and the second connection hole 523 that are away from each other are both provided with inner chamfers. In other words, the end of the first connection hole 522 away from the second connection hole 523 is provided with an inner chamfer, and the end of the second connection hole 523 away from the first connection hole 522 is also provided with an inner chamfer. During the process of inserting the ignition component 610 into the first connection hole 522, since the end of the first connection hole 522 is provided with an inner chamfer, the assembly resistance of the ignition component 610 can be reduced, thereby improving the assembly efficiency and assembly accuracy of the ignition component 610. Similarly, during the process of inserting the air outlet needle 420 into the second connection hole 523, since the end of the second connection hole 523 is provided with an inner chamfer, the assembly resistance of the air outlet needle 420 can be reduced, thereby improving the assembly efficiency and assembly accuracy of the air outlet needle 420. Similarly. Of course, the end of the ignition assembly 610 may also be provided with an outer chamfer, which matches the inner chamfer of the first connection hole 522, so that the assembly resistance of the ignition assembly 610 can be further reduced, thereby further improving the assembly efficiency and assembly precision of the ignition assembly 610. The end of the air outlet needle 420 may also be provided with an outer chamfer, which matches the inner chamfer of the second connection hole 523, so that the assembly resistance of the air outlet needle 420 can be further reduced, thereby further improving the assembly efficiency and assembly precision of the air outlet needle 420.

[0044] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the tube clamp 510 includes a tube shell 512, a rib 513, a guide rib 514, and a positioning ring 515. The tube shell 512 and the joint 520 form a mounting cavity 530. The rib 513 is protrudingly arranged on the outer surface of the tube shell 512. The rib 513 can extend to a set length along the axial direction of the tube shell 512. The number of the ribs 513 can be multiple, and the multiple ribs 513 are arranged at intervals along the circumference of the tube shell 512. The positioning ring 515 is sleeved on the tube shell 512, so that the positioning ring 515 protrudes a certain length relative to the tube shell 512 along the radial direction of the tube shell 512. The guide rib 514 is protrudingly arranged on the outer surface of the tube shell 512. The guide rib 514 can extend to a set length along the axial direction of the tube shell 512. The number of the guide ribs 514 can be multiple, and the multiple guide ribs 514 are arranged at intervals along the circumference of the tube shell 512. For example, the number of the ribs 513 can be four, and the number of the guide ribs 514 can be two. During the installation of the clamp tube 510 relative to the liquid storage tank 100, the guide rib 514 can cooperate with the groove structure on the liquid storage tank 100, and the groove structure can guide the guide rib 514, thereby improving the assembly efficiency and assembly accuracy of the clamp tube 510. Of course, the guide rib 514 can also form a snap-fit ​​connection relationship with the liquid storage tank 100.

[0045] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the ignition mechanism 600 includes an ignition assembly 610 and a gun barrel 620, both of which are capable of conducting electricity and have opposite polarities. For example, the ignition assembly 610 may have the same polarity as the first piezoelectric portion 310 of the piezoelectric mechanism 300, and the gun barrel 620 may have the same polarity as the second piezoelectric portion 320 of the piezoelectric mechanism 300. The ignition assembly 610 includes a connecting rod 611 and an ignition unit 612, the connecting rod 611 is closer to the air outlet needle 420 than the ignition unit 612, the connecting rod 611 is inserted into the inner cavity of the tube shell 512 and the first connecting hole 522, and the connecting rod 611 is in contact with the second step surface 524, and both ends of the connecting rod 611 may have external chamfers. In view of the existence of the external chamfers, the assembly efficiency and assembly accuracy of the connecting rod 611 can be improved. The connecting rod 611 and the inner cavity of the tube shell 512 and the first connecting hole 522 can form a clearance fit relationship. The outer peripheral surface of the connecting rod 611 is recessed to form a groove 6111. The groove 6111 is recessed to a certain depth along the radial direction of the connecting rod 611. The joint 520 and the tube shell 512 of the clamp tube 510 can close the opening of the groove 6111, so that the groove 6111 after the opening is closed is transformed into a first channel 6112. The first channel 6112 can be interconnected with the inner cavity of the gas outlet needle 420, so that the gas flowing out of the gas outlet needle 420 can enter the first channel 6112. The ignition unit 612 can enclose a second channel 6123. The first channel 6112 and the second channel 6123 can be configured as a gas guide channel 630, that is, the gas guide channel 630 includes the first channel 6112 and the second channel 6123. The gas entering the first channel 6112 can continue to enter the second channel 6123, so that the gas is ignited at the end of the second channel 6123. The number of the grooves 6111 can be one or more. When the number of the grooves 6111 is more than one, the plurality of grooves 6111 can be arranged at intervals along the circumference of the connecting rod 611. In other embodiments, the first channel 6112 can be directly surrounded by the connecting rod 611, so that the connecting rod 611 itself can surround the first channel 6112 which is closed circumferentially.

[0046] In other embodiments, for example, the connecting rod 611 may be formed by cutting off a portion of a cylindrical rod body along the axial direction, so that the gap between the clamp tube 510 and the connecting rod 611 is configured as a part of the air guide channel 630. For another example, the inner cavity of the clamp tube 510 is a cylindrical cavity, and the connecting rod 611 is cylindrical, but the diameter of the connecting rod 611 is smaller than the diameter of the inner cavity of the clamp tube 510, so that there is an annular gap between the clamp tube 510 and the connecting rod 511. Obviously, the annular gap is arranged around the connecting rod 511, and the annular gap is also configured as a gap configured as a part of the air guide channel 630. For another example, the inner cavity of the clamp tube 510 is a cylindrical cavity, and the connecting rod 511 may be prismatic, etc., so that part of the outer surface of the connecting rod 511 is not in close contact with the inner surface of the clamp tube 510, and then there is a gap between the clamp tube 510 and the connecting rod, and the gap can also be configured as a part of the air guide channel 630.

[0047] In some embodiments, the ignition unit 612 includes an ignition needle 6121 and a spring 6122. The ignition needle 6121 is located between the connecting rod 611 and the spring 6122. The ignition needle 6121 can contact the connecting rod 611 and the spring 6122 at the same time, thereby realizing the electrical conduction relationship of the entire ignition mechanism 600. The ignition needle 6121 and the spring 6122 together surround the second channel 6123. The ignition needle 6121 and the inner cavity of the clamp tube 510 can form an interference fit relationship, so that the entire ignition unit 612 can be fixed, and the ignition needle 6121 can seal the entire gas guide channel 630, so that the intermediate sealing components such as the sealing ring can be omitted, thereby simplifying the structure of the ignition gun 10, and ultimately achieving the purpose of improving assembly efficiency.

[0048] See also Figure 2 , Figure 3 , Figure 4 and Figure 5In some embodiments, the gun barrel 620 includes a tube body 621 and a firing element 622. The tube body 621 can be sleeved on the clamp tube 510. When the tube body 621 is sleeved on the clamp tube 510, the rib 513 of the clamp tube 510 contacts the inner wall surface of the tube body 621, which can avoid the outer surface of the entire tube shell 512 from contacting the tube body 621, thereby reasonably reducing the contact area between the tube body 621 and the clamp tube 510, thereby reducing the friction resistance of the tube body 621 during the assembly process, thereby improving the assembly efficiency of the entire gun barrel 620. The tube body 621 can form an electrical connection with the second piezoelectric part 320 through a wire. After the tube body 621 is installed, the end of the tube body 621 can abut against the positioning ring 515 on the clamp tube 510, so that the positioning ring 515 applies an abutting force along the axial direction of the gun barrel 620 to the tube body 621. Therefore, by providing the positioning ring 515, the installation of the gun barrel 620 can be positioned, thereby improving the assembly efficiency and assembly accuracy of the gun barrel 620. The tube body 621 of the gun barrel 620 can always form an electrical conduction relationship with the second piezoelectric part 320 of the piezoelectric mechanism 300.

[0049] The ignition piece 622 is located in the inner cavity of the tube body 621. One end of the ignition piece 622 is a fixed end and is fixedly connected to the tube body 621, and the other end of the ignition piece 622 is a free end, so that the entire ignition piece 622 extends a certain length toward the ignition assembly 610, and the tube body 621 and the ignition piece 622 can be connected as one. An electric spark can be formed between the free end of the ignition piece 622 and the ignition assembly 610. A vent hole 6211 can also be provided on the tube body 621, and the vent hole 6211 connects the outside and the inner cavity of the tube body 621. When the gas is ignited at the end of the ignition assembly 610, the flame generated by the gas can emerge from the end of the tube body 621. By providing the vent hole 6211, the gas can be burned under sufficient oxygen.

[0050] See also Figure 1 , Figure 2 and Figure 3 In some embodiments, the tube body 621 is provided with a clamping hole 6212, and the clamping tube 510 is provided with a protrusion 516. When the protrusion 516 cooperates with the clamping hole 6212, the barrel 620 and the clamping tube 510 can be connected by a buckle. Of course, the clamping tube 510 is provided with a clamping hole 6212, and the tube body 621 is provided with a protrusion 516. When the protrusion 516 cooperates with the clamping hole 6212, the barrel 620 and the clamping tube 510 can also be connected by a buckle.

[0051] See also Figure 3 , Figure 7 and Figure 8 , the working principle of the ignition gun 10 is described below:

[0052] When the ignition gun 10 needs to generate flames, a pressing force is applied to the button 210. On the one hand, the button 210 will make the first piezoelectric part 310 of the piezoelectric mechanism 300 slide relative to the second piezoelectric part 320, so that the first piezoelectric part 310 impacts the piezoelectric ceramic of the second piezoelectric part 320 to generate electric charge. On the other hand, the button 210 will push the pry plate 220 to rotate with the first piezoelectric part 310 as a fulcrum, so that the pry plate 220 pushes the air outlet needle 420 to move upward relative to the liquid guide tube 410 and move close to the connecting rod 611. During the upward movement of the air outlet needle 420, the liquid 20 in the liquid guide tube 410 will be converted into gas and input into the air guide channel 630 through the air outlet needle 420.

[0053] When the air outlet needle 420 moves close to the connecting rod 611, when the distance between the air outlet needle 420 and the connecting rod 611 is less than the set value, an electric spark will be generated between the ignition piece 622 of the barrel 620 and the ignition assembly 610, for example, the electric spark can be generated when the air outlet needle 420 and the connecting rod 611 contact each other. It can be understood that when the distance between the air outlet needle 420 and the connecting rod 611 is less than the set value, the first piezoelectric part 310, the pry plate 220, the air outlet needle 420, the connecting rod 611 and the ignition assembly 610 can form an electrical conduction relationship, and since the tube body 621 of the barrel 620 can always form an electrical conduction relationship with the second piezoelectric part 320 of the piezoelectric mechanism 300, the ignition piece 622 and the second piezoelectric part 320 can also form an electrical conduction relationship. Since the polarities of the first piezoelectric part 310 and the second piezoelectric part 320 are opposite, the polarities of the ignition element 622 and the ignition assembly 610 are opposite, so that an electric spark is generated between the ignition element 622 and the ignition assembly 610. When an electric spark is generated between the ignition element 622 and the ignition assembly 610, the gas in the gas guide channel 630 will reach the end of the ignition assembly 610, so that the gas will burn under the action of the electric spark, and the flame generated by the combustion of the gas will emerge from the end of the barrel 620.

[0054] It can be understood that when the button 210 stops being pressed, the button 210 will be reset, and the air outlet needle 420 will also be reset. On the one hand, the piezoelectric mechanism 300 cannot generate electric charge, and the piezoelectric mechanism 300 will not be able to form an electrical conduction relationship with the ignition component 610. On the other hand, the liquid guide tube 410 cannot supply gas to the air outlet needle 420, so the entire ignition gun 10 cannot generate flames.

[0055] Therefore, on one hand, the ignition mechanism 600 can form a gas-conducting channel 630, so that the gas flows in the gas-conducting channel 630, that is, the ignition mechanism 600 has a gas-conducting function, and on the other hand, the ignition mechanism 600 can form an electrical conduction relationship with the piezoelectric mechanism 300, that is, the ignition mechanism 600 has a conductive function. Therefore, the ignition mechanism 600 has both a gas-conducting function and a conductive function, so that it is possible to avoid setting different mechanisms to generate the gas-conducting and conductive functions, thereby reducing the number of parts of the ignition gun 10 to simplify the structure of the ignition gun 10, and ultimately improving the assembly efficiency and assembly accuracy of the ignition gun 10.

[0056] 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.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An ignition gun, characterized in that: include: A liquid storage tank, provided with a liquid storage cavity for storing flammable liquid; The starting mechanism comprises a button and a pry plate, wherein the button is slidably arranged on the liquid storage tank, and the button can press the pry plate; A piezoelectric mechanism, disposed in the liquid storage tank and connected to the pry plate; The gas guide mechanism comprises a liquid guide tube and a gas outlet needle, wherein the liquid guide tube draws liquid from the liquid storage chamber, and the gas outlet needle abuts against the pry plate and can slide relative to the liquid guide tube and convert the liquid into gas; A mounting mechanism connected to the liquid storage tank; and An ignition mechanism, comprising an ignition assembly capable of conducting electricity with opposite polarities and a gun barrel, wherein the ignition assembly is inserted into the mounting mechanism, an air guide channel is provided in the ignition assembly and / or between the ignition assembly and the mounting mechanism, and the gun barrel is provided on the mounting mechanism; When the button pushes the pry plate to move close to the ignition assembly for a set distance, the piezoelectric mechanism generates an electric charge, and an electric spark is generated between the gun barrel and the ignition assembly to ignite the combustible gas in the gas guide channel.

2. The ignition gun according to claim 1, characterized in that: The ignition assembly includes a connecting rod and an ignition unit, the connecting rod is closer to the air outlet needle than the ignition unit, a first channel is formed between the connecting rod and the mounting mechanism, the ignition unit forms a second channel connected to the first channel, and the air guide channel includes the first channel and the second channel.

3. The ignition gun according to claim 2, characterized in that: The mounting mechanism is provided with a mounting cavity, the connecting rod is clearance-matched with the mounting cavity, both ends of the connecting rod are provided with external chamfers, and the ignition assembly is interference-matched with the mounting cavity.

4. The ignition gun according to claim 2, characterized in that: The outer peripheral surface of the connecting rod is concavely formed with a groove, and the mounting mechanism blocks the opening of the groove so that the groove forms the first channel.

5. The ignition gun according to claim 2, characterized in that: When the distance between the pry plate and the connecting rod is smaller than a set value, electric sparks are generated between the gun barrel and the ignition assembly.

6. The ignition gun according to claim 1, characterized in that: The installation mechanism includes a clamping tube and a joint, wherein the joint is inserted into the clamping tube and interference fits with the inner cavity of the clamping tube, a first step surface is arranged in the clamping tube, and the joint abuts against the first step surface along the axial direction of the clamping tube.

7. The ignition gun according to claim 6, characterized in that: The joint is provided with a first connecting hole and a second connecting hole which are connected to each other, the aperture of the first connecting hole is larger than the aperture of the second connecting hole, the joint is provided with a second step surface at the connection point between the first connecting hole and the second connecting hole, the ignition assembly cooperates with the first connecting hole and abuts against the second step surface, the air outlet needle cooperates with the second connecting hole, and the ends of the first connecting hole and the second connecting hole which are away from each other are both provided with inner chamfers.

8. The ignition gun according to claim 6, characterized in that: The clamp tube includes a tube shell, a convex rib, a guide rib and a positioning ring, the ignition assembly is inserted into the tube shell, the convex rib is protrudingly arranged on the outer surface of the tube shell and extends a set length along the axial direction of the tube shell, the positioning ring is sleeved on the tube shell, the gun barrel is sleeved outside the convex rib and abuts against the positioning ring along the axial direction of the tube shell, the guide rib is protrudingly arranged on the outer surface of the tube shell and extends a set length along the axial direction of the tube shell, and the guide rib is snap-connected with the liquid storage tank.

9. The ignition gun according to claim 1, characterized in that: The gun barrel includes a tube body and a firing piece, the tube body is sleeved on a mounting assembly, the firing piece is located in an inner cavity of the tube body and connected to the tube body, the firing piece extends a certain length toward the ignition assembly, and a vent hole corresponding to the ignition assembly and connecting the inner cavity of the tube body and the outside is opened on the tube body.

10. The ignition gun according to claim 1, characterized in that: One of the gun barrel and the mounting mechanism is provided with a protrusion and the other is provided with a clamping hole, and the protrusion matches with the clamping hole.

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