An electric igniter with a connecting mechanism

Abstract

This utility model discloses an electric igniter with a connection mechanism, including an igniter body and a wire, and a connector for connecting the igniter body and the quick-connect lead. The connector consists of an integral protective sleeve and a clamp. The clamp consists of an upper clamp and a lower clamp. The igniter body is placed inside the protective sleeve. One end of the protective sleeve has a through hole for the wire to be led out, and the other end of the protective sleeve is an open end connected to one side of the lower clamp. The upper clamp and the lower clamp are hinged to each other on their corresponding sides. The upper clamp and / or the lower clamp have a piercing part in the middle, and a corresponding engaging mechanism is provided between the upper clamp and the lower clamp. The engaging and connecting of the upper and lower clamps, and the piercing part for fixing the end of the quick-connect lead, improve the connection efficiency and reliability between the igniter body and the quick-connect lead.

Description

Technical Field

[0001] This utility model relates to the field of fireworks display technology, specifically an electric igniter with a connecting mechanism. Background Technology

[0002] An electric igniter is an ignition device that uses electrical energy to ignite a propellant by heating a resistance wire. It is widely used in fire fighting, fireworks displays, mining, and other fields, and features safety, reliability, and ease of control.

[0003] In existing electric igniters, depending on the scale of the fireworks display, the number of igniters and quick-connect fuses required for a single fireworks display can be hundreds or even thousands. However, when connecting the electric igniter and the quick-connect fuse, the outer sheath of the quick-connect fuse is usually damaged, and the connection is secured by wrapping it with tape. The above connection method results in poor connection efficiency and reliability. In order to further improve the connection efficiency and reliability between the igniter body and the quick-connect fuse, an electric igniter with a connecting mechanism is now provided, which can eliminate the drawbacks of the existing device. Utility Model Content

[0004] The purpose of this invention is to provide an electric igniter with a connecting mechanism to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electric igniter with a connection mechanism includes an igniter body and a wire, and a connector for connecting the igniter body and a quick-connect wire. The connector consists of an integral protective sleeve and a clamp. The clamp consists of an upper clamp and a lower clamp. The igniter body is placed inside the protective sleeve. One end of the protective sleeve has a through hole for the wire to be led out, and the other end of the protective sleeve is an open end connected to one side of the lower clamp. The upper clamp and the lower clamp are hinged to each other on their corresponding sides. The upper clamp and / or the lower clamp have a piercing portion in the middle, and a corresponding locking mechanism is provided between the upper clamp and the lower clamp.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative embodiment: the locking mechanism includes a bolt and a positioning bolt hole for the bolt to be elastically engaged, with the bolt and positioning bolt hole respectively disposed on the upper clamping body and the lower clamping body.

[0009] In one alternative:

[0010] The engaging mechanism includes a movable component disposed on the lower clamping body; the movable component includes:

[0011] Two movable push plates are symmetrically arranged on the outside of the lower clamping body, and the two movable push plates are respectively located on both sides of the upper clamping body;

[0012] The lower clamp is provided with a first limiting component; the upper clamp is provided with a second limiting component; and the movable push plate is provided with a guide component.

[0013] In one alternative:

[0014] The first limiting component includes a second movable pressure rod disposed below the lower clamp body. The second movable pressure rod is in contact with the outer wall of the lower clamp body. The second movable pressure rod is located between two movable push plates. Two first connecting shafts are symmetrically fixedly connected to the outer wall of the second movable pressure rod. The two first connecting shafts are rotatably connected to the two movable push plates respectively.

[0015] The second movable pressure rod is provided with a locking component; the first connecting shaft is provided with a reset component.

[0016] In one alternative embodiment, the engagement assembly includes:

[0017] A positioning plate is fixedly connected to the outer wall of the second movable pressure rod. The positioning plate is L-shaped and contacts the outer wall of the lower clamp body away from the protective sleeve. The outer wall of the second movable pressure rod is integrally formed with a pressing push plate.

[0018] In one alternative: the reset assembly is a first torsion spring sleeved on the outer wall of the first connecting shaft. Both ends of the first torsion spring are integrally formed with end heads. The two end heads respectively penetrate into the interior of the movable push plate and the second movable pressure rod. The movable push plate and the second movable pressure rod are both provided with slots for inserting the end heads.

[0019] In one alternative: the second limiting component is a first movable pressure rod disposed above the upper clamping body, the first movable pressure rod is in contact with the outer wall of the upper clamping body, the first movable pressure rod is located between two movable push plates, and the first movable pressure rod is rotatably connected to the two movable push plates.

[0020] In one alternative embodiment, the guiding component includes:

[0021] Two limiting guide blocks are symmetrically fixedly connected to one side of the movable push plate. The two limiting guide blocks pass through the interior of the upper clamp and the lower clamp respectively. The upper clamp and the lower clamp are provided with linear slide grooves for the movable push plate to slide at the contact positions. The protective sleeve is provided with limiting slide grooves for the movable push plate to slide. The limiting slide grooves are located at the ends of the linear slide grooves. The inner cavities of the limiting slide grooves and the inner cavities of the linear slide grooves are interconnected.

[0022] In one alternative: a connecting plate is integrally formed at one end of the upper clamp, and two second connecting shafts are symmetrically fixedly connected to the outer wall of the connecting plate. Both second connecting shafts are rotatably connected to the protective sleeve. A second torsion spring is sleeved on the outer wall of each of the two second connecting shafts. Both ends of the second torsion springs are integrally formed with end heads. The two end heads respectively penetrate into the interior of the connecting plate and the protective sleeve. The connecting plate and the protective sleeve are provided with slots for inserting the end heads.

[0023] In one alternative: the open end of the protective sleeve is fixed to side A of the lower clamp, side B of the lower clamp is hinged to the upper clamp, side A and side B are adjacent sides, and the opposite side of side B of the lower clamp is correspondingly connected to the upper clamp through a locking mechanism.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the locking mechanism, can improve the connection efficiency and reliability between the ignition head body and the quick lead wire by locking and connecting the upper and lower clamps and fixing the quick lead wire end by the piercing part.

[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of Example 1.

[0033] Figure 2 This is a schematic diagram of a partial cross-section of Example 1.

[0034] Figure 3 This is a schematic diagram of the structure of Example 2.

[0035] Figure 4This is a schematic diagram of a partial cross-section of Example 2.

[0036] Figure 5 This is a schematic diagram of the engagement mechanism structure in Example 2.

[0037] Figure 6 This is a structural schematic diagram from the first perspective of Example 3.

[0038] Figure 7 This is a structural schematic diagram from a second perspective of Example 3.

[0039] Figure label annotations: 1. Ignition head body; 3. Wire; 6. Puncture part; 7. Upper clamp; 8. Lower clamp; 9. Protective sleeve; 11. Locking bolt; 12. Hinge part; 13. Positioning bolt hole; 14. Elastic locking block; 15. Open end;

[0040] 4. Connecting plate; 5. Second connecting shaft; 10. Second torsion spring; 201. First moving pressure rod; 202. Limiting guide block; 203. Moving push plate; 204. Positioning plate; 205. First connecting shaft; 206. Second moving pressure rod; 207. Pressing push plate; 208. First torsion spring; 209. Linear slide groove;

[0041] 16. Elastic connecting piece; 17. Limiting notch. Detailed Implementation

[0042] Example 1: See Appendix Figure 1 , 2 This describes a specific structure of the present invention. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] Example 1: As Figure 1 , 2 As shown, the electric igniter with a connection mechanism includes an igniter body and a wire 3, and also includes a connector that connects the igniter body 1 and a quick-connect lead (not shown in the figure). The connector consists of an integral protective sleeve 9 and a clamp. The clamp consists of an upper clamp 7 and a lower clamp 8. The igniter body 1 is placed inside the protective sleeve 9. One end of the protective sleeve 9 has a through hole for the wire 3 to be led out, and the other end of the protective sleeve 9 is an open end 15. The open end 15 connects the upper clamp 7 and the lower clamp 8. In this example, the root of the upper clamp 7 has a hinge part 12 to realize the rotation of the upper clamp. In other embodiments, a rotation mechanism can also be provided at the root of the lower clamp 8; alternatively, the hinge part 12 can be omitted, and the rotation of the upper clamp and / or the lower clamp can be realized by utilizing the elasticity of the plastic material.

[0044] The upper clamp 7 and the lower clamp 8 are provided with a puncture part 6 in the middle. The upper clamp 7 and the lower clamp 8 are provided with a corresponding locking mechanism. The locking mechanism in the example includes two bolts 11 symmetrically fixedly connected to the bottom end of the upper clamp 7. The bottom end of the two bolts 11 in the example is integrally formed with an elastic block 14. The elastic block 14 is in contact with the surface of the lower clamp 8. A positioning bolt hole 13 is provided at the position where the lower clamp 8 and the bolt 11 are connected, so that the elastic block 14 can be deformed and elastically locked in.

[0045] In this embodiment, during use, the quick-connect wire is moved between the upper clamp 7 and the lower clamp 8, ensuring that the end of the quick-connect wire is close to the opening end of the protective sleeve 9. Then, the upper clamp 7 and the lower clamp 8 are pinched together, so that the elastic block 14 deforms and inserts into the positioning bolt hole 13, and then recovers its deformation to connect the free ends of the upper clamp 7 and the lower clamp 8. The piercing part 6 pierces and fixes the quick-connect wire and destroys the outer skin of the quick-connect wire. Then, power is supplied to the ignition head body 1 through the wire 3. After the ignition head body 1 is energized, the flame gas generated rushes out from the opening end 15 to ignite the lead core of the quick-connect wire, thereby completing the ignition. Then, the quick-connect wire ignites the fireworks connected to it, and the fireworks can be set off.

[0046] Example 2: As Figure 3-5 As shown, in the example, one end of the upper clamp 7 is integrally formed with a connecting plate 4. Two second connecting shafts 5 are symmetrically fixedly connected to the outer wall of the connecting plate 4. Both second connecting shafts 5 are rotatably connected to the protective sleeve 9. A second torsion spring 10 is sleeved on the outer wall of each of the two second connecting shafts 5. Both ends of the second torsion spring 10 are integrally formed with end heads. The two end heads pass through the interior of the connecting plate 4 and the protective sleeve 9, respectively. The connecting plate 4 and the protective sleeve 9 are provided with holes and slots for inserting the end heads. The lower clamp 8 is fixedly connected to the protective sleeve 9. Through the cooperation of the connecting plate 4, the second connecting shafts 5 and the second torsion springs 10, the upper clamp 7 can be automatically flipped and reset.

[0047] like Figures 3-5 As shown in the example, the engaging mechanism includes:

[0048] A movable component is mounted on the lower clamp 8;

[0049] The mobile components include:

[0050] Two movable push plates 203 are symmetrically arranged on the outside of the lower clamping body 8, and the two movable push plates 203 are located on both sides of the upper clamping body 7 respectively;

[0051] A first limiting component is provided on the lower clamp 8;

[0052] A second limiting component is provided on the upper clamp 7;

[0053] The movable push plate 203 is equipped with a guide component;

[0054] The first limiting component includes:

[0055] A second movable pressure rod 206 is set below the lower clamping body 8. The second movable pressure rod 206 is in contact with the outer wall of the lower clamping body 8. The second movable pressure rod 206 is located between two movable push plates 203. Two first connecting shafts 205 are symmetrically fixedly connected to the outer wall of the second movable pressure rod 206. The two first connecting shafts 205 are rotatably connected to the two movable push plates 203 respectively.

[0056] A locking assembly is provided on the second movable pressure rod 206;

[0057] A reset component is provided on the first connecting shaft 205;

[0058] The card-connecting components include:

[0059] A positioning plate 204 is fixedly connected to the outer wall of the second movable pressure rod 206. The positioning plate 204 is L-shaped and contacts the outer wall of the lower clamp 8 away from the protective sleeve 9. The outer wall of the second movable pressure rod 206 is integrally formed with a pressing push plate 207. Through the cooperation of the moving component, the first limiting component, the second limiting component and the engaging component, the engaging efficiency between the upper clamp 7 and the lower clamp 8 can be further improved.

[0060] In the example, such as Figures 4-5 As shown, the reset component is a first torsion spring 208 sleeved on the outer wall of the first connecting shaft 205. Both ends of the first torsion spring 208 are integrally formed with end heads, which respectively penetrate into the interior of the movable push plate 203 and the second movable pressure rod 206. The movable push plate 203 and the second movable pressure rod 206 are provided with holes and slots for inserting the end heads. Through the torsional rebound of the first torsion spring 208, when the positioning plate 204 moves to one end of the lower clamping body 8, the second movable pressure rod 206 drives the positioning plate 204 to engage with one end of the lower clamping body 8, thereby locking and limiting the second movable pressure rod 206.

[0061] In the example, such as Figures 3-5 As shown, the second limiting component is a first movable pressure rod 201 disposed above the upper clamping body 7. The first movable pressure rod 201 contacts the outer wall of the upper clamping body 7. The first movable pressure rod 201 is located between two movable push plates 203. The first movable pressure rod 201 is rotatably connected to the two movable push plates 203. The first movable pressure rod 201 is used to squeeze and limit the upper clamping body 7.

[0062] In the example, such as Figures 3-5 As shown, the guide component includes:

[0063] Two limiting guide blocks 202 are symmetrically fixedly connected to one side of the movable push plate 203. The two limiting guide blocks 202 penetrate into the interior of the upper clamping body 7 and the lower clamping body 8, respectively. The upper clamping body 7 and the lower clamping body 8 are provided with linear slide grooves 209 for the movable push plate 203 to slide at the contact positions with the movable push plate 203. The protective sleeve 9 is provided with a limiting slide groove for the movable push plate 203 to slide. The limiting slide groove is located at the end of the linear slide groove 209. The inner cavity of the limiting slide groove is interconnected with the inner cavity of the linear slide groove 209. Through the cooperation of the limiting guide blocks 202, the linear slide groove 209, and the limiting slide groove, the movable push plate 203 can be limited to slide in the upper clamping body 7, the lower clamping body 8, and the protective sleeve 9.

[0064] Unlike Embodiment 1, during use, the pressing and pushing plate 207 drives the second moving pressure rod 206 to rotate. At this time, the two first connecting shafts 205 rotate synchronously under the drive of the second moving pressure rod 206. Simultaneously, the second moving pressure rod 206 twists the first torsion spring 208 through rotation. At this time, the positioning plate 204 separates from the outer wall of the lower clamp 8 under the drive of the second moving pressure rod 206, thereby releasing the locking and limiting of the second moving pressure rod 206.

[0065] Then, the two movable push plates 203 are pushed to slide along the outer walls of the upper clamp 7 and the lower clamp 8. At this time, the first movable pressure rod 201 and the second movable pressure rod 206 are driven by the two movable push plates 203 to move synchronously along the outer walls of the upper clamp 7 and the lower clamp 8 respectively. At the same time, the limiting guide block 202 is driven by the movable push plate 203 to slide along the inner wall of the straight slide groove 209 until the limiting guide block 202 contacts the inner wall of one end of the limiting slide groove, thereby releasing the flipping limitation of the upper clamp 7.

[0066] Simultaneously, the second torsion spring 10 drives the connecting plate 4 to rotate through torsion rebound. At this time, the second connecting shaft 5 rotates synchronously under the drive of the connecting plate 4, and the upper clamp 7 flips under the drive of the connecting plate 4. Then, the end of the quick lead is placed on the upper surface of the lower clamp 8 and contacts the outer wall of the piercing part 6 on the lower clamp 8. At the same time, the end of the quick lead contacts the end of the ignition head body 1. Then, the above operation is reversed. In this way, the end of the quick lead can be conveniently clamped through the upper clamp 7 and the lower clamp 8. At the same time, the upper clamp 7 can be limited and fixed by the engagement connection between the positioning plate 204 and the lower clamp 8, thereby further improving the connection efficiency and reliability between the ignition head body 1 and the quick lead.

[0067] Example 3: As Figure 6 , 7As shown, the open end 15 of the protective sleeve 9 is fixed to side A of the lower clamp 8, and side B of the lower clamp 8 is hinged to the upper clamp 7 to achieve flipping and closing. Side A and side B are adjacent sides. When the lower clamp 8 and the upper clamp 7 are flipped open, it is convenient to quickly insert the lead wire.

[0068] The opposite side of side B of the lower clamp 8 is connected to the upper clamp 7 via a locking mechanism. In this example, the locking mechanism includes two latches 11 fixedly connected to side B of the lower clamp 8. The upper clamp 7 has two corresponding positioning holes 13 on its side. In this example, an elastic connecting piece 16 is integrally formed at the base of each of the two positioning holes 13. When the lower clamp 8 and upper clamp 7 are flipped and closed, the elastic connecting piece 16 deforms, causing the limiting notch 17 of the latches 11 to elastically engage within the positioning holes 13. The locking mechanism is tight, preventing disengagement.

[0069] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. An electric ignition head with a connection mechanism, comprising an ignition head body (1) and a conductor wire (3), characterized in that, The application also discloses a connector for connecting the ignition head body (1) and the quick lead, which is composed of a protective sleeve (9) and a clamp, the clamp is composed of an upper clamp body (7) and a lower clamp body (8), the ignition head body (1) is arranged in the protective sleeve (9), one end of the protective sleeve (9) is provided with a through hole for leading out the lead (3), the other end of the protective sleeve (9) is an open end (15), the open end is connected to one side of the lower clamp body (8), and the upper clamp body and the lower clamp body are hingedly connected to the corresponding two sides.

2. An electric ignition tip having a coupling mechanism according to claim 1, wherein The clamping mechanism comprises: a moving assembly arranged on the lower clamp body (8); the moving assembly comprises two moving push plates (203) symmetrically arranged on the outer side of the lower clamp body (8), and the two moving push plates (203) are located on the two sides of the upper clamp body (7) respectively; the lower clamp body (8) is provided with a first limiting assembly; the upper clamp body (7) is provided with a second limiting assembly; the moving push plate (203) is provided with a guide assembly.

3. An electric ignition tip having a coupling mechanism according to claim 2, wherein the first limiting assembly comprises a second moving pressure rod (206) arranged below the lower clamp body (8), the outer wall of the second moving pressure rod (206) is in contact with the outer wall of the lower clamp body (8), the second moving pressure rod (206) is located between the two moving push plates (203), the outer wall of the second moving pressure rod (206) is fixedly connected with two first connecting shafts (205) in a symmetrical mode, and the two first connecting shafts (205) are rotationally connected with the two moving push plates (203) respectively; the second moving pressure rod (206) is provided with a clamping assembly; the first connecting shaft (205) is provided with a reset assembly.

4. An electric ignition tip having a coupling mechanism according to claim 3, wherein the clamping assembly comprises a positioning clamping plate (204) fixedly connected to the outer wall of the second moving pressure rod (206), the positioning clamping plate (204) is in the shape of an L letter, the positioning clamping plate (204) is in contact with the outer wall of the end of the lower clamp body (8) away from the protective sleeve (9), and the outer wall of the second moving pressure rod (206) is integrally formed with a pressing push plate (207).

5. An electric ignition tip having a coupling mechanism according to claim 3, wherein the reset assembly is a first torsion spring (208) sleeved on the outer wall of the first connecting shaft (205), both ends of the first torsion spring (208) are integrally formed with end heads, the two end heads penetrate into the interiors of the moving push plate (203) and the second moving pressure rod (206) respectively, and the moving push plate (203) and the second moving pressure rod (206) are both provided with a hole slot for inserting the end heads.

6. An electric ignition tip having a coupling mechanism according to claim 2, wherein the second limiting assembly is a first moving pressure rod (201) arranged above the upper clamp body (7), the outer wall of the first moving pressure rod (201) is in contact with the outer wall of the upper clamp body (7), the first moving pressure rod (201) is located between the two moving push plates (203), and the first moving pressure rod (201) is rotationally connected with the two moving push plates (203).

7. An electric ignition tip having a coupling mechanism as defined in claim 2, wherein The guiding assembly comprises two limiting guide blocks (202) fixedly connected on one side of the moving push plate (203) in a symmetrical manner, the two limiting guide blocks (202) penetrate into the interiors of the upper clamping body (7) and the lower clamping body (8) respectively, the upper clamping body (7) and the lower clamping body (8) are provided with linear sliding grooves (209) at the positions where the upper clamping body (7) and the lower clamping body (8) are connected with the moving push plate (203), the protective sleeve (9) is provided with a limiting sliding groove for the moving push plate (203) to slide, the limiting sliding groove is located at the end of the linear sliding groove (209), and the inner cavity of the limiting sliding groove and the inner cavity of the linear sliding groove (209) are interconnected.

8. An electric ignition tip having a coupling mechanism according to claim 1, wherein One end of the upper clamping body (7) is integrally formed with a connecting plate (4), the outer wall of the connecting plate (4) is fixedly connected with two second connecting shafts (5) in a symmetrical manner, the two second connecting shafts (5) are rotationally connected with the protective sleeve (9), the outer walls of the two second connecting shafts (5) are sleeved with second torsion springs (10), the two ends of the second torsion springs (10) are integrally formed with end heads, the two end heads penetrate into the interiors of the connecting plate (4) and the protective sleeve (9) respectively, and the connecting plate (4) and the protective sleeve (9) are provided with hole grooves for the end heads to be inserted.

9. An electric ignition tip having a coupling mechanism according to claim 1, wherein The opening end (15) of the protective sleeve (9) is fixedly connected to the A side of the lower clamping body (8), the B side of the lower clamping body (8) is hingedly connected with the upper clamping body (7), the A side and the B side are adjacent sides, and the opposite side of the B side of the lower clamping body (8) is connected with the upper clamping body (7) through a clamping mechanism.

10. An electric ignition tip having a coupling mechanism according to claim 1 or 9, characterized in that The clamping mechanism comprises a clamping bolt (11) and a positioning bolt hole (13) for the clamping bolt (11) to be elastically clamped, and the clamping bolt (11) and the positioning bolt hole (13) are arranged on the upper clamping body (7) and the lower clamping body (8) respectively.

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