A lighter with convenient replacement of the firestone

Abstract

The application discloses a lighter with convenient replacement of firestones, and relates to the technical field of lighters. The lighter comprises a body, a firestone lighting assembly capable of sliding horizontally and a locking structure arranged on the body. The firestone lighting assembly comprises a firestone rack slidingly arranged and a steel wheel hingedly connected to the firestone rack by means of a screw shaft. One end of the screw shaft is provided with a matching hole. The locking structure is provided with an insertion part capable of matching the matching hole. The insertion part is connected to the matching hole by insertion under the action of a reset elastic force, so that the firestone lighting assembly is stably arranged in a lighting position. After the insertion part is separated from the matching hole, the firestone lighting assembly can slide outward. The application has the characteristics of convenient replacement of firestones and clean and safe use.

Description

Technical Field

[0001] This application relates to the field of lighter technology, specifically to a lighter that facilitates flint replacement. Background Technology

[0002] The cotton oil lighter is a popular smoking accessory, and the friction wheel is a common part of the cotton oil lighter, used to rub against the flint.

[0003] Traditional cotton oil lighters ignite by directly actuating the friction wheel. To improve safety and prevent fingers from contacting flint powder, lighters with indirect friction wheel actuation were developed. In indirect friction wheel type cotton oil lighters, the friction wheel and the actuation wheel are coaxially spaced, with the shaft vertical, and the flint and the spring that presses against the flint (the flint spring) are arranged horizontally, as disclosed in CN201909335U and CN221324533U.

[0004] To prevent the spring that holds the flint from coming out, a retaining screw is usually used to lock it in place by screwing it into the flint channel. However, it has been found that replacing the flint is inconvenient, as a tool is needed to unscrew the screw holding the flint spring, which causes inconvenience for users. Utility Model Content

[0005] In view of this, this application provides a lighter with a convenient flint replacement to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this application provides the following technical solution: A lighter with convenient flint replacement includes a body, on which a flint ignition assembly capable of horizontal sliding and a locking structure are provided. The flint ignition assembly includes a slidably mounted flint frame and a steel wheel hinged to the flint frame by a screw shaft, one end of which has a mating hole. The locking structure has a locking member that can engage with the mating hole. Under the action of a restoring elastic force, the locking member is inserted into the mating hole, so that the flint ignition assembly is stably in the ignition position. When the locking member is separated from the mating hole, the flint ignition assembly can slide outward.

[0007] Furthermore, the locking structure is a dial assembly. After the insert is engaged with the mating hole, the dial assembly drives the steel wheel to rotate.

[0008] Furthermore, the mating component has a prism that engages with the mating hole.

[0009] Furthermore, the body has a limiting protrusion, and the flint holder has a travel limiting groove that cooperates with the limiting protrusion; the side wall of the flint channel of the flint holder is provided with a through flint replacement port, and the flint replacement port can be exposed when the flint holder slides outward.

[0010] Furthermore, the flint channel is equipped with a push spring, a pin, and a flint that are connected in sequence, with the length of the pin being greater than the length of the flint replacement port.

[0011] Furthermore, the push spring includes a connected limiting end and a main body. The diameter of the limiting end is larger than the diameter of the main body. The main body passes through the middle frame of the fuselage and enters the flint channel. The limiting end abuts against the middle frame.

[0012] Furthermore, the ejector pin includes a coaxially connected top head and a limiting rod, with the limiting rod being sleeved with a push spring.

[0013] Furthermore, the dial assembly also includes a limit seat and a dial body that are slidably fitted together. A top pressure spring is provided between the limit seat and the dial body. A fitting is provided on the dial body. The body is provided with a limit insertion hole that engages with the limit seat. The fitting passes through the through hole on the body and engages with the fitting hole.

[0014] Furthermore, the fuselage also includes a fuselage shell and a detachable bottom cover mounted on the fuselage shell, a detachable midframe mounted on the fuselage shell, a through hole located on the midframe, a flint ignition assembly slidably mounted on the midframe, and a limiting end abutting against the inner wall of the fuselage shell.

[0015] Compared with the prior art, the beneficial effects of this application are: By making the flint ignition assembly slidable, and combining it with the flint replacement port on the side wall of the flint channel, flint replacement can be done without removing the connecting screws, making flint replacement convenient and preventing parts from being lost during the process. The use of the dial assembly ensures safe and clean operation. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] Figure 1 This is a schematic diagram of the overall structure of this application.

[0018] Figure 2 This is a schematic diagram of the exploded structure of this application.

[0019] Figure 3 This is a top view of the present application.

[0020] Figure 4 for Figure 3 AA sectional view.

[0021] Figure 5 for Figure 3 BB cross-sectional view.

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point E.

[0023] Figure 7 This is a schematic diagram of the ignition state structure of this application.

[0024] Figure 8 This is a structural schematic diagram of the fuselage shell of this application.

[0025] Figure 9 This is a structural diagram of the midframe of this application.

[0026] Figure 10 This is a schematic diagram of the push spring of this application.

[0027] Figure 11 This is a schematic diagram of the structure of the ejector pin in this application.

[0028] Explanation of reference numerals in the attached drawings: 1-Fuse housing 1; 11-Mounting cavity 11; 12-Limiting insertion hole 12; 13-Limiting recess 13; 14-Limiting protrusion 14; 2-Middle frame 2; 21-Boss 21; 22-Limiting structure 22; 23-Through hole 23; 3-Head cover 3; 4-Bottom cover 4; 5-Flint ignition assembly 5; 51-Flint holder 51; 511-Flint channel 511; 512-Flint replacement port 512; 513-Stroke limiting groove 513; 52-Steel wheel 52; 53-Push 53-Compression spring; 531-Limiting end 531; 532-Main body 532; 54-Flint 54; 55-Ejector pin 55; 551-Top head 551; 552-Limiting rod 552; 56-Screw shaft 56; 561-Matching hole 561; 6-Dial assembly 6; 61-Limiting seat 61; 62-Top compression spring 62; 63-Dial body 63; 631-Limiting shaft 631; 632-Pyramid 632; 7-Oil plug 7; 8-Bolt 8; 9-Through-center elastic top compression mechanism. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit it.

[0030] refer to Figures 1 to 11 ,like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, this embodiment provides a lighter with convenient flint replacement, including a body. The body is provided with a flint ignition assembly 5 that can slide horizontally and a locking structure. The flint ignition assembly 5 includes a slidably mounted flint frame 51 and a steel wheel 52 hinged to the flint frame 51 by a screw shaft 56. One end of the screw shaft 56 has a mating hole 561. The locking structure has a plug-in part that can mate with the mating hole 561. Under the action of the reset elastic force, the plug-in part and the mating hole 561 are connected, so that the flint ignition assembly 5 is stably in the ignition position. When the plug-in part is separated from the mating hole 561, the flint ignition assembly 5 can slide outward.

[0031] Specifically, the screw shaft 56 and the steel wheel 52 are connected by a thread. The two ends of the screw shaft 56 are engaged with the corresponding shaft holes on the flint frame 51 to provide support for the two ends of the screw shaft 56, thereby improving the installation stability of the steel wheel 52.

[0032] In this embodiment, when the lighter is ignited by directly actuating the steel wheel 52, the insert is mounted on the body in a vertically sliding manner. The insert has a lever extending out of the body, and the lower part of the insert abuts against a corresponding elastic member. By actuating the lever, the insert can be lowered, thereby separating the insert from the mating hole 561 and releasing the flint ignition assembly 5.

[0033] In this embodiment, after the flint ignition assembly 5 is released, it can be either ejected outward by the elastic force of the elastic element or manually pulled out. When it is necessary to easily replace the flint, the rear end of the flint channel 511 of the flint holder 51 is open, and the push spring 53 that abuts against the flint is held against the machine body. After the flint holder 51 is pulled out or ejected, the flint 54 can be directly replaced.

[0034] In this embodiment, to improve safety and prevent fingers from getting flint powder on them, the locking structure is a dial assembly 6. When the insert engages with the mating hole 561, the dial assembly 6 drives the steel wheel 52 to rotate.

[0035] In this embodiment, the insert has a prism 632 that engages with the mating hole 561, and synchronous linkage is achieved by the engagement of the prism 632 with the mating hole 561. The mating hole 561 is a prismatic hole. Preferably, the prism 632 is a hexagonal prism, and the mating hole 561 is a hexagonal hole.

[0036] To prevent parts from being lost during flint replacement, a limiting protrusion 14 is provided on the machine body, and a travel limiting groove 513 is provided on the flint holder 51 to cooperate with the limiting protrusion 14, thereby preventing the flint holder 51 from separating from the machine body. A through flint replacement port 512 is provided on the side wall of the flint channel 511 of the flint holder 51. When the flint holder 51 moves outward and slides, the flint replacement port 512 can be exposed. After the flint replacement port 512 is exposed, the flint replacement action is performed, thereby preventing parts from being lost.

[0037] In this application, the flint replacement port 512 can be located on the upper side wall or the front or rear side wall of the flint channel 511. In this embodiment, it is preferable that the flint replacement port 512 is located on the upper side wall of the flint channel 511, which makes it convenient to operate with a handheld lighter during flint replacement.

[0038] In this embodiment, a push spring 53, a pin 55, and a flint 54 are sequentially arranged within the flint channel 511, forming abutting connections. The length of the pin 55 is greater than the length of the flint replacement port 512. This prevents the pin 55 from vibrating and deviating from the flint channel 511 when it moves to the flint replacement port 512, thus affecting the pressure applied to the flint 54. Since the width of the lighter is limited, by reducing the number of abutting screws abutting the push spring 53, sufficient installation space is provided for the push spring 53, and the push spring 53 can be used to automatically eject the flint ignition assembly 5 upon release.

[0039] like Figure 10 As shown, in this embodiment, the push spring 53 includes a connected limiting end 531 and a main body 532, with the diameter of the limiting end 531 being larger than the diameter of the main body 532. The main body 532 passes through the middle frame 2 of the fuselage and enters the flint channel 511, with the limiting end 531 abutting against the middle frame 2. This structure ensures that after the flint ignition assembly 5 automatically ejects, the corresponding end of the push spring 53 will not separate from the middle frame 2. By limiting the corresponding end of the push spring 53, the push spring 53 can stably remain on the same straight line during extension and compression, ensuring the stable performance of the push spring 53.

[0040] like Figure 11 As shown, in this embodiment, the ejector pin 55 includes a coaxially connected top head 551 and a limiting rod 552. The limiting rod 552 is sleeved with a push spring 53. The top holding end of the top head 551 is frustoconical, which facilitates the installation of the ejector pin 55. The setting of the limiting rod 552 makes the push spring 53 less likely to bend due to external force, thereby affecting its function.

[0041] In this application, the dial assembly 6 also includes a limit seat 61 and a dial body 63 that are slidably fitted together. A top pressure spring 62 is provided between the limit seat 61 and the dial body 63. A fitting is provided on the dial body 63. The body is provided with a limit insertion hole 12 that engages with the limit seat 61. The fitting passes through the through hole 23 on the body and engages with the mating hole 561. In order to ensure high structural reliability, when the dial body 63 slides down to the limit position, the fitting will not separate from the through hole 23, thus avoiding the situation where the dial body 63 accidentally detaches and ensuring stable use.

[0042] Specifically, the mating component also includes a limiting shaft 631 connecting the dial body 63 and the prism 632. The diameter of the dial body 63 is larger than the diameter of the limiting shaft 631, and the maximum outer diameter of the prism 632 is the same as the diameter of the limiting shaft 631. The limiting shaft 631 is rotatably engaged with the through hole 23, and the limiting shaft 631 is cylindrical. This design makes the limiting shaft 631 less prone to wear and ensures stable engagement.

[0043] like Figure 8 and Figure 9 As shown, the lighter also includes a housing 1 and a detachable bottom cover 4 mounted on the housing 1. A middle frame 2 is detachably mounted on the housing 1. A through hole 23 is located on the middle frame 2. A flint ignition assembly 5 is slidably mounted on the middle frame 2, and its limiting end 531 abuts against the inner wall of the housing 1. A head cover 3 is hinged to the middle frame 2. When the head cover 3 is closed, the flame nozzle and steel wheel 52 can be hidden. The middle frame 2 is provided with a centering elastic pressing mechanism 9 that abuts against the cam portion of the head cover 3. The specific structure and function of the centering elastic pressing mechanism 9 can be referred to in the prior art of flip-top lighters.

[0044] Specifically, the corresponding bolts 8 pass through the bottom cover 4 and connect to the body shell 1, pulling the bottom cover 4 to connect the body shell 1 and the bottom cover 4 as one unit. The bottom cover 4 is provided with an oil filler port, and a detachable oil plug 7 is provided at the oil filler port. The outer side of the body shell 1 is provided with a recessed mounting cavity 11, and the dial assembly 6 is installed in the mounting cavity 11. The limiting insertion hole 12 is located on the inner wall of the mounting cavity 11. The bottom surface of the middle frame 2 is provided with a boss 21, and the body shell 1 is provided with a limiting recess 13 that mates with the boss 21 to limit the middle frame 2. The corresponding bolts 8 pass through the upper sealing layer of the body shell 1 from inside the body shell 1 and are installed with the middle frame 2, realizing the detachable installation of the middle frame 2 and facilitating the disassembly and assembly of the dial assembly 6. The elastic pressing mechanism 9 is installed in the clearance cavity at the boss 21, which limits the elastic pressing mechanism 9 and stabilizes its performance. The middle frame 2 is provided with a limiting structure 22 that can control the maximum opening angle of the cover 3. When the cover 3 is opened, it abuts against the limiting structure 22. Preferably, the maximum swing angle of the cover 3 is 90 degrees. The side of the middle frame 2 has a slide for installing the flint ignition assembly 5. The flint ignition assembly 5 is confined in the slide by the side wall of the body shell 1. Using the side wall of the body shell 1 as one side wall of the slide can reduce the thickness of the lighter.

[0045] When the flint needs to be replaced, the dial 63 is pressed down to separate the insert from the mating hole 561, and the flint ignition assembly 5 is ejected. At this time, the flint replacement port 512 is exposed. When the flint holder 51 extends to its limit position, the push spring 53 returns to its free length, and the ejector pin 55 has a certain amount of room to move. When the ejector pin 55 is adjusted to abut against the push spring 53, the ejector pin 55 is misaligned with the flint replacement port 512, and the flint replacement port 512 is connected to the flint channel 511. After the flint 54 is inserted along the flint replacement port 512, the flint holder 51 is pressed to move into the machine body. After the flint 54 abuts against the ejector pin 55, the push spring 53 is compressed as the flint holder 51 moves. Under the action of the push spring 53, the ejector pin 55 makes the flint 54 reliably contact the steel wheel 52, and the flint replacement is completed.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A lighter with a convenient flint replacement mechanism, comprising a body, characterized in that, The body is provided with a flint ignition assembly (5) that can slide horizontally and a locking structure; the flint ignition assembly (5) includes a slidably mounted flint frame (51) and a steel wheel (52) hinged to the flint frame (51) by a screw shaft (56), one end of the screw shaft (56) has a mating hole (561); the locking structure has a plug that can mate with the mating hole (561), under the action of the reset elastic force, the plug is plugged into the mating hole (561) to make the flint ignition assembly (5) stably in the ignition position; when the plug is separated from the mating hole (561), the flint ignition assembly (5) can slide outward.

2. The lighter with convenient flint replacement according to claim 1, characterized in that, The locking structure is a dial assembly (6). After the insert is engaged with the mating hole (561), the steel wheel (52) is driven to rotate by driving the dial assembly (6).

3. The lighter with convenient flint replacement according to claim 2, characterized in that, The fitting has a prism (632) that engages with the mating hole (561).

4. The lighter with convenient flint replacement according to claim 1, characterized in that, The body has a limiting protrusion (14), and the flint holder (51) has a travel limiting groove (513) that cooperates with the limiting protrusion (14); the flint channel (511) of the flint holder (51) has a through flint replacement port (512) on its side wall, and the flint holder (51) can be exposed by sliding outward.

5. The lighter with convenient flint replacement according to claim 4, characterized in that, The flint channel (511) is provided with a push spring (53), a pin (55) and a flint (54) connected in sequence, and the length of the pin (55) is greater than the length of the flint replacement port (512).

6. The lighter with convenient flint replacement according to claim 5, characterized in that, The push spring (53) includes a connected limiting end (531) and a main body (532). The diameter of the limiting end (531) is larger than the diameter of the main body (532). The main body (532) passes through the middle frame (2) of the fuselage and enters the flint channel (511). The limiting end (531) abuts against the middle frame (2).

7. The lighter with convenient flint replacement according to claim 5 or 6, characterized in that, The ejector pin (55) includes a top head (551) and a limiting rod (552) connected coaxially, and the limiting rod (552) is sleeved and connected to the push spring (53).

8. The lighter with convenient flint replacement according to claim 2, characterized in that, The dial assembly (6) further includes a slidably fitted limiting seat (61) and a dial body (63). A top pressure spring (62) is provided between the limiting seat (61) and the dial body (63). The insert is provided on the dial body (63). The body is provided with a limiting insertion hole (12) that is inserted and cooperates with the limiting seat (61). The insert passes through the through hole (23) on the body and is inserted and connected to the mating hole (561).

9. The lighter with convenient flint replacement according to claim 6, characterized in that, The fuselage also includes a fuselage shell (1) and a bottom cover (4) that can be detachably mounted on the fuselage shell (1). The middle frame (2) is detachably mounted on the fuselage shell (1). The through hole (23) is located on the middle frame (2). The flint ignition assembly (5) is slidably mounted on the middle frame (2), and the limiting end (531) abuts against the inner wall of the fuselage shell (1).

Images