A cigarette lighter with self-defense function

Abstract

The utility model specifically relates to a cigarette lighter with a self-defense function, comprising a shell and a cigarette lighter assembly arranged in the shell, the shell having an upper opening, a sharp knife assembly arranged at a position different from the cigarette lighter assembly in the shell, one end of the sharp knife assembly being a sharp knife end, and the sharp knife assembly having a first position where at least part of the sharp knife end is exposed outside the shell. By integrating the self-defense function on the cigarette lighter, the sharp knife end can be used for self-defense when self-defense is needed.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette lighters, in particular to a cigarette lighter with a self-defense function. Background Art

[0002] Cigarette lighters are divided into the following types according to the form in which they ignite: gas cigarette lighters, kerosene cigarette lighters, electric heating cigarette lighters, and arc cigarette lighters. All of them include a shell, an ignition unit, and a switch, and use the ignition unit to achieve the cigarette lighting action.

[0003] Existing cigarette lighters and self-defense devices are mostly presented as separate products, which are troublesome to carry and result in poor working efficiency. Currently, there is an urgent need for a cigarette lighter with a self-defense function. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a cigarette lighter with a self-defense function.

[0005] The technical solution adopted by the utility model is as follows: a cigarette lighter with a self-defense function, comprising a shell and a cigarette lighter assembly arranged in the shell, the shell having an upper opening, a sharp knife assembly being arranged at a position different from the cigarette lighter assembly in the shell, one end of the sharp knife assembly being a sharp knife end, and the sharp knife assembly having a first position where at least part of the sharp knife end is exposed outside the shell.

[0006] Preferably, the axial movement of the sharp knife assembly relative to the shell has a first position in which the sharp knife end passes through the upper opening of the shell and is at least partially exposed outside the shell, and a second position in which the sharp knife end is completely located inside the shell.

[0007] Preferably, the housing comprises a main housing portion and a connecting housing portion, the cigarette lighter assembly is arranged in the main housing portion, and a cigarette lighter port is arranged at the upper end of the main housing portion.

[0008] The connecting shell part is connected to the outer periphery of the main shell part, the top end of the connecting shell part is set as a first opening, and the sharp knife assembly is set in the connecting shell part.

[0009] The cigarette lighter port is located at an axial position close to the first opening.

[0010] Preferably, the sharp knife assembly comprises a lifting cylinder portion sleeved between the connecting shell portion and the main shell portion and a sharp knife portion connected to the upper end of the lifting cylinder portion.

[0011] The lifting cylinder part moves axially relative to the connecting shell part, and has a first position where the sharp knife part passes through the first opening and is at least partially exposed outside the connecting shell part, and a second position where the sharp knife end is completely located inside the connecting shell part.

[0012] Preferably, the pointed knife portion includes a connecting bottom ring detachably fixedly connected to the upper end of the lifting cylinder portion and a plurality of cone spikes connected to the top of the connecting bottom ring, the plurality of cone spikes are distributed in a ring shape on the upper end of the lifting cylinder portion, the side of the cone spikes away from the center of the lifting cylinder portion is a smooth curved surface and the pointed end thereof is arranged away from the center of the lifting cylinder portion.

[0013] Preferably, an interlocking structure is provided between the upper end of the lifting cylinder and the pointed knife portion, and the interlocking structure includes a first guide column / groove provided at the upper end of the lifting cylinder and a second guide groove / column provided at the bottom of the pointed knife portion and mating with the first guide column / groove.

[0014] Preferably, the connecting shell portion comprises a connecting cylinder portion sleeved and connected to the outer periphery of the main shell portion and a limiting cylinder portion connected to the outer periphery of the upper end of the connecting cylinder portion, and the top opening of the limiting cylinder portion forms the above-mentioned first opening.

[0015] The connecting cylinder is provided with a driving member outside, and the driving member includes a rotating cylinder portion rotating between the connecting cylinder portion and the limiting cylinder portion, and the inner circumference of the rotating cylinder portion is provided with a threaded section, and the connecting cylinder portion is provided with an axially extending lifting groove at at least one position around the lifting cylinder portion, and the lifting groove is penetrated with a connecting block connecting the lifting cylinder portion and the rotating cylinder portion.

[0016] The connecting block corresponds to the outer periphery of the rotating cylinder and is an annular surface provided with a threaded section. The connecting block is threadedly matched with the rotating cylinder. The lifting groove is adapted to the shape of the connecting block and forms a circumferential rotation limit for the connecting block.

[0017] The connecting shell part is provided with a first limiting surface for limiting the upward movement of the driving member and a second limiting surface for limiting the downward movement of the driving member. The lifting cylinder part is lifted and lowered along the lifting slot under the rotation of the driving member.

[0018] Preferably, the limiting cylinder portion comprises an outer cylinder portion and a first connecting ring portion connecting the outer cylinder portion and the connecting cylinder portion.

[0019] The driving member further includes an operating ring portion located at the outer periphery of the lower end of the rotating cylinder portion and a second connecting ring portion connecting the operating ring portion and the rotating cylinder portion.

[0020] The lower end of the outer cylinder portion extends to the upper end surface of the second connecting ring portion and forms the first limiting surface on the lower end surface of the outer cylinder portion.

[0021] The connecting tube portion is provided with the second limiting surface on the lower end surface of the operating ring portion.

[0022] Preferably, the first connecting ring portion includes, from top to bottom, a connected limiting portion and a threaded ring portion that is threadedly connected to the connecting cylinder portion. The radial thickness of the limiting portion is greater than that of the threaded ring portion, and a first abutting surface that abuts against the upper end of the connecting cylinder portion is formed at the bottom end of the limiting portion. The upper end surface of the limiting portion forms a second abutting surface. When the sharp knife end is located in the second position, the bottom of the sharp knife portion abuts against the second abutting surface.

[0023] Preferably, the lifting groove extends axially to the top of the through-connecting cylinder.

[0024] The beneficial effects of the utility model are as follows: by integrating the self-defense function on the cigarette lighter, when self-defense is needed, the sharp end of the knife can be used for self-defense. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0026] Figure 1 This is a front view of the overall structure of the embodiment of the utility model;

[0027] Figure 2 This is an exploded structural diagram of an embodiment of the utility model;

[0028] Figure 3 This is a top view of the structure of an embodiment of the utility model;

[0029] Figure 4 for Figure 3 Sectional view at aa in the middle;

[0030] Figure 5 for Figure 3 Sectional view at bb in the middle;

[0031] Figure 6 for Figure 4 A magnified view of the structure at center;

[0032] Figure 7 for Figure 5 A magnified view of the structure at B in the middle;

[0033] In the figure, 3, driving member; 4, limiting cylinder; 11, connecting cylinder; 12, main housing; 21, lifting cylinder; 22, sharp knife; 31, rotating cylinder; 32, operating ring; 33, second connecting ring; 41, lifting groove; 42, first connecting ring; 111, lifting groove; 112, second limiting surface; 211, connecting block; 212, limiting guide column; 213, first guide column; 221, connecting bottom ring; 222, cone barb; 223, second guide groove; 411, first limiting surface; 412, first opening; 421, limiting part; 422, threaded ring; 1211, cigarette lighter port; 2221, smooth curved surface; 4211, first abutting surface; 4212, second abutting surface. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0035] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0036] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0037] like Figures 1 to 7 As shown, in an embodiment of the utility model, a cigarette lighter with a self-defense function includes a shell and a cigarette lighter assembly arranged in the shell, the shell has an upper opening, a sharp knife assembly is provided at a position different from the cigarette lighter assembly in the shell, one end of the sharp knife assembly is a sharp knife end, and the sharp knife assembly has a first position where at least part of the sharp knife end is exposed outside the shell.

[0038] Through this arrangement, a self-defense function is integrated into the cigarette lighter, and when self-defense is needed, the sharp end of the knife can be used for self-defense. The cigarette lighter assembly can be one of the gas ignition device, arc ignition device, heating wire ignition device or kerosene ignition device in the prior art. In this embodiment, a gas ignition device is specifically used.

[0039] The sharp knife assembly moves axially relative to the shell and has a first position where the sharp knife end passes through the upper opening of the shell and is at least partially exposed outside the shell and a second position where the sharp knife end is completely located inside the shell.

[0040] With this arrangement, when self-defense is needed, the sharp knife assembly can be moved out so that the sharp knife end is outside the shell for self-defense; when self-defense is completed, the sharp knife assembly can be moved into the shell so that the sharp knife end returns to the shell, which does not affect daily cigarette lighting needs and improves the convenience and safety of carrying.

[0041] The housing comprises a main housing portion 12 and a connecting housing portion. The cigarette-lighting assembly is arranged in the main housing portion 12. A cigarette-lighting port 1211 is arranged at the upper end of the main housing portion 12.

[0042] The connecting housing part is connected to the outer periphery of the main housing part 12, the top end of the connecting housing part is set as a first opening 412, and the sharp knife assembly is set in the connecting housing part.

[0043] The cigarette lighter port 1211 is located at an axial position close to the first opening 412 .

[0044] Through this arrangement, the cigarette lighter assembly is integrated into the main shell portion, the connecting shell portion is located at the outer periphery of the main shell portion, and the sharp knife assembly is arranged in the connecting shell, which improves the compactness of the overall structure and prevents the sharp knife assembly and the cigarette lighter assembly from interfering with each other, thereby improving the practicality of the use of this structure.

[0045] The cigarette lighter port is located at an axial position close to the first opening, which can reduce the interference of the cigarette lighter assembly on the knife assembly in the first working state. Preferably, the cigarette lighter port is set to be lower than the first opening or at the same axial position as the first opening. In this embodiment, the cigarette lighter port is located at an axial position lower than the first opening.

[0046] The main housing portion and the connecting housing portion may be an integral structure or a separately assembled structure. In this embodiment, the lower end of the connecting housing portion is threadedly assembled to the outer periphery of the main housing portion to improve the convenience of assembly.

[0047] The sharp knife assembly includes a lifting cylinder portion 21 sleeved between the connecting shell portion and the main shell portion 12 and a sharp knife portion 22 connected to the upper end of the lifting cylinder portion 21.

[0048] The lifting cylinder 21 axially moves relative to the connecting housing to have a first position where the sharp knife portion 22 passes through the first opening 412 and is at least partially exposed outside the connecting housing, and a second position where the sharp knife end is completely inside the connecting housing.

[0049] With this arrangement, the switching between the first working state and the first closed state of the knife end is achieved by lifting the lifting cylinder portion between the main housing portion and the connecting housing portion, which has high stability and a compact overall structure.

[0050] The pointed knife portion 22 includes a connecting bottom ring 221 which is detachably fixedly connected to the upper end of the lifting cylinder portion 21 and a plurality of conical spikes 222 connected to the top of the connecting bottom ring 221. The plurality of conical spikes 222 are distributed in a ring shape on the upper end of the lifting cylinder portion 21. The side of the conical spikes 222 away from the center of the lifting cylinder portion 21 is a smooth curved surface 2221 and the pointed end thereof is arranged away from the center of the lifting cylinder portion 21.

[0051] This arrangement further reduces the possibility of accidental injury when the sharp knife end is in the second position, improves the safety of the device, and reduces the interference of the spike on the cigarette lighter port. At the same time, the spike is installed on the lifting cylinder by connecting the bottom ring, which reduces the possible harm to the staff during the disassembly and assembly of the cigarette lighter compared to the integrated structure. In this application, a threaded part is specifically used to realize the detachable fixed connection between the sharp knife part and the lifting cylinder part.

[0052] An insert-fit structure is provided between the upper end of the lifting cylinder 21 and the sharp knife 22, and the insert-fit structure includes a first guide column / groove provided at the upper end of the lifting cylinder 21 and a second guide groove / column provided at the bottom of the sharp knife 22 and matched with the first guide column / groove. Through this arrangement, the positioning and matching of the sharp knife and the lifting cylinder during installation are achieved, and the convenience of assembly is further improved. In this embodiment, a first guide column 213 is provided at the top of the lifting cylinder, and a second guide groove 223 matching with the first guide column 213 is correspondingly provided at the bottom of the sharp knife.

[0053] The connecting shell part includes a connecting cylinder part 11 sleeved and connected to the outer periphery of the main shell part 12 and a limiting cylinder part 4 connected to the outer periphery of the upper end of the connecting cylinder part 11. The top opening of the limiting cylinder part 4 forms the above-mentioned first opening 412.

[0054] The connecting cylinder 11 is provided with a driving member 3 outside, and the driving member 3 includes a rotating cylinder 31 rotatably located between the connecting cylinder 11 and the limiting cylinder 4, and a threaded section is provided on the inner circumference of the rotating cylinder 31. The connecting cylinder 11 is provided with an axially extending lifting groove 111 at at least one position around the lifting cylinder 21, and a connecting block 211 connecting the lifting cylinder 21 and the rotating cylinder 31 is penetrated by the lifting groove 111.

[0055] The connecting block 211 is an annular surface with threaded sections corresponding to the outer periphery of the rotating cylinder 31. The connecting block 211 is threadedly matched with the rotating cylinder 31. The lifting groove 111 is adapted in shape to the connecting block 211 and forms a circumferential rotation limit for the connecting block 211.

[0056] The connecting shell portion is provided with a first limiting surface 411 for limiting the upward movement of the driving member 3 and a second limiting surface 112 for limiting the downward movement of the driving member 3 . The lifting cylinder portion 21 is lifted and lowered along the lifting groove 111 under the rotation of the driving member 3 .

[0057] Through this arrangement, the lifting groove limits the circumferential rotation of the rotating cylinder part through the connecting block, so that it can only move axially along the lifting groove. Under the limiting action of the first and second limiting surfaces, the driving member can only rotate but cannot move axially. Moreover, due to the threaded engagement cooperation between the rotating cylinder part of the driving member and the connecting block of the lifting cylinder part, the driving member is rotated, and the lifting cylinder part is lifted and lowered along the lifting groove in the connecting shell part under the threaded engagement of the rotating cylinder part and the connecting block. The threaded engagement not only realizes the disassembly and assembly of the present structure, but also the threaded connection mode has stable connection and can realize real-time position locking.

[0058] The connecting block can be a separate part or an integral part formed with the driving part and / or the lifting cylinder. In this embodiment, the connecting block is an integral part formed with the lifting cylinder. The housing is evenly provided with four axially extending lifting grooves around the lifting cylinder, and four connecting blocks are correspondingly provided to improve the stability of the lifting cooperation.

[0059] The limiting cylinder 4 includes an outer cylinder 41 and a first connecting ring 42 connecting the outer cylinder 41 and the connecting cylinder 11.

[0060] The driving member 3 further includes an operating ring portion 32 located at the outer periphery of the lower end of the rotating cylinder portion 31 and a second connecting ring portion 33 connecting the operating ring portion 32 and the rotating cylinder portion 31.

[0061] The lower end of the outer tube portion 41 extends to the upper end surface of the second connecting ring portion 33 and forms the first limiting surface 411 on the lower end surface of the outer tube portion 41.

[0062] The connecting tube portion 11 is provided with the second limiting surface 112 on the lower end surface of the operating ring portion 32 .

[0063] Through this arrangement, the operating ring is exposed to the outside, making the rotation more convenient. The lower end of the outer cylinder forms a limiter on the driving member to limit its upward movement. The structure is stable and compact. At the same time, it extends to the upper end of the second connecting ring, which has a protective effect on the rotating cylinder of the driving member. At the same time, in this embodiment, the outer periphery of the lower end of the first cylinder decreases in diameter from top to bottom and forms an inclined annular surface, so that the operating ring is more prominent and more convenient to operate. The outer peripheral surface of the operating ring is an annular surface formed by connecting multiple planes in sequence, which increases the friction between the hand and the surface during the rotation process, making the rotation more convenient.

[0064] The first connecting ring portion 42 includes, from top to bottom, a connected limiting portion 421 and a threaded ring portion 422 which is threadedly connected to the connecting cylinder portion 11. The radial thickness of the limiting portion 421 is greater than that of the threaded ring portion 422 and a first abutting surface 4211 is formed at the bottom end of the limiting portion 421 to abut against the upper end of the connecting cylinder portion 11. The upper end surface of the limiting portion 421 forms a second abutting surface 4212. When the pointed knife end is located at the second position, the bottom of the pointed knife portion 22 abuts against the second abutting surface 4212.

[0065] This arrangement makes it easy to disassemble and assemble the limiting cylinder and the upper housing. During assembly, the limiting cylinder is screwed in from top to bottom to achieve fixed fit with the upper housing. At the same time, under the positioning effect of the limiting portion, excessive screwing of the limiting cylinder can be avoided; the second abutting surface is positioned against the second closed position of the sharp knife end. The limiting portion can be a limiting block or a limiting ring. In this embodiment, it is specifically configured in the form of a limiting ring to improve the limiting stability.

[0066] The lifting groove 111 axially extends to the top of the penetrating connecting cylinder 11 .

[0067] Through this arrangement, the lifting cylinder part can be inserted and installed on the upper shell part from top to bottom, which improves the convenience of assembly.

[0068] The lifting cylinder portion 21 is provided with an axially extending limiting guide column 212 at the upper end and / or lower end of the connecting block 211. The limiting guide column 212 is adapted to the shape of the lifting slot 111. The lifting slot 111 forms a circumferential rotation limit for the limiting guide column 212. The radial thickness of the limiting guide column 212 is smaller than the connecting block 211.

[0069] Through this arrangement, the limiting guide column improves the stability of the connection between the lifting cylinder and the shell, and at the same time improves the limiting effect of the lifting groove on the lifting cylinder, and during the assembly process, the limiting guide column has a guiding effect, making disassembly and assembly more convenient. In this embodiment, the connecting block is located at the bottom of the outer periphery of the lifting cylinder, and the limiting guide column is connected to the upper end of the connection.

[0070] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A cigarette lighter with a self-defense function, comprising a housing and a cigarette lighter assembly disposed in the housing, characterized in that: The shell has an upper opening, and a sharp knife assembly is arranged at a position different from the cigarette lighter assembly in the shell, and one end of the sharp knife assembly is a sharp knife end. The sharp knife assembly moves axially relative to the shell and has a first position where the sharp knife end passes through the upper opening of the shell and is at least partially exposed outside the shell and a second position where the sharp knife end is completely located inside the shell.

2. The cigarette lighter with self-defense function according to claim 1, characterized in that: The housing comprises a main housing portion (12) and a connecting housing portion, the cigarette lighting assembly is arranged in the main housing portion (12), and a cigarette lighting port (1211) is arranged at the upper end of the main housing portion (12). The connecting shell part is connected to the outer periphery of the main shell part (12), the top end of the connecting shell part is arranged as a first opening (412), and the sharp knife assembly is arranged in the connecting shell part. The cigarette lighter port (1211) is located at an axial position close to the first opening (412).

3. The cigarette lighter with self-defense function according to claim 2, characterized in that: The sharp knife assembly comprises a lifting cylinder portion (21) sleeved between the connecting shell portion and the main shell portion (12) and a sharp knife portion (22) connected to the upper end of the lifting cylinder portion (21). The lifting cylinder part (21) moves axially relative to the connecting shell part, and has a first position in which the sharp knife part (22) passes through the first opening (412) and is at least partially exposed outside the connecting shell part, and a second position in which the sharp knife end is completely located inside the connecting shell part.

4. The cigarette lighter with self-defense function according to claim 3, characterized in that: The pointed knife portion (22) comprises a connecting bottom ring (221) detachably fixedly connected to the upper end of the lifting cylinder portion (21) and a plurality of cone spikes (222) connected to the upper end of the connecting bottom ring (221); the plurality of cone spikes (222) are distributed in a ring shape at the upper end of the lifting cylinder portion (21); a side of the cone spikes (222) away from the center of the lifting cylinder portion (21) is a smooth curved surface (2221), and the pointed end of the cone spikes (222) is arranged away from the center of the lifting cylinder portion (21).

5. The cigarette lighter with self-defense function according to claim 4, characterized in that: An insert-fit structure is provided between the upper end of the lifting cylinder (21) and the pointed knife (22), and the insert-fit structure comprises a first guide column / groove provided at the upper end of the lifting cylinder (21) and a second guide groove / column provided at the bottom of the pointed knife (22) and matched with the first guide column / groove.

6. The cigarette lighter with self-defense function according to claim 3, characterized in that: The connecting shell portion comprises a connecting cylinder portion (11) sleeved and connected to the outer periphery of the main shell portion (12) and a limiting cylinder portion (4) connected to the outer periphery of the upper end of the connecting cylinder portion (11), wherein the top of the limiting cylinder portion (4) is opened to form the above-mentioned first opening (412). A driving member (3) is arranged outside the connecting cylinder (11), and the driving member (3) comprises a rotating cylinder (31) rotatably located between the connecting cylinder (11) and the limiting cylinder (4), and a threaded section is arranged on the inner circumference of the rotating cylinder (31). The connecting cylinder (11) is provided with an axially extending lifting groove (111) at at least one position around the lifting cylinder (21), and a connecting block (211) connecting the lifting cylinder (21) and the rotating cylinder (31) is passed through the lifting groove (111). The connecting block (211) is an annular surface provided with a threaded section corresponding to the outer periphery of the rotating cylinder (31); the connecting block (211) is threadedly matched with the rotating cylinder (31); the lifting groove (111) is adapted in shape to the connecting block (211) and forms a circumferential rotation limit for the connecting block (211); The connecting shell portion is provided with a first limiting surface (411) for limiting the upward movement of the driving member (3) and a second limiting surface (112) for limiting the downward movement of the driving member (3); the lifting cylinder portion (21) is lifted and lowered along the lifting groove (111) under the rotation of the driving member (3).

7. The cigarette lighter with self-defense function according to claim 6, characterized in that: The limiting cylinder (4) comprises an outer cylinder (41) and a first connecting ring (42) connecting the outer cylinder (41) and the connecting cylinder (11). The driving member (3) further comprises an operating ring portion (32) located at the outer periphery of the lower end of the rotating cylinder portion (31) and a second connecting ring portion (33) connecting the operating ring portion (32) and the rotating cylinder portion (31). The lower end of the outer tube portion (41) extends to the upper end surface of the second connecting ring portion (33) and forms the first limiting surface (411) on the lower end surface of the outer tube portion (41). The connecting tube portion (11) is provided with the second limiting surface (112) on the lower end surface of the operating ring portion (32).

8. The cigarette lighter with self-defense function according to claim 7, characterized in that: The first connecting ring portion (42) includes, from top to bottom, a connected limiting portion (421) and a threaded ring portion (422) threadedly connected to the connecting tube portion (11); the radial thickness of the limiting portion (421) is greater than that of the threaded ring portion (422), and a first abutting surface (4211) abutting against the upper end of the connecting tube portion (11) is formed at the bottom end of the limiting portion (421); the upper end surface of the limiting portion (421) forms a second abutting surface (4212); when the sharp knife end is located at the second position, the bottom of the sharp knife portion (22) abuts against the second abutting surface (4212).

9. A cigarette lighter with self-defense function according to claim 6, 7 or 8, characterized in that: The lifting groove (111) axially extends to the top of the through-connecting cylinder (11).

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