Adjustable grinding wheel of lighter
By designing an adjustable grinding wheel structure, the problem of adjusting the gap between the grinding wheel and the flint is solved, and adaptive adjustment and automatic rotation of the grinding wheel and flint are achieved, thereby improving the performance and life of the lighter.
Patent Information
- Application Number
- CN202421953989.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The existing grinding wheel and flint are in a rotating structure, which cannot adjust the height adaptively, resulting in an excessively large gap between the grinding wheel and the flint, making it impossible to generate sparks, thus affecting performance and life.
An adjustable grinding wheel for lighters was designed. By setting a fixed plate, a spring and an arc plate, the contraction force of the spring was used to adjust the gap between the grinding wheel and the flint. The grinding wheel was automatically rotated by a turntable and a pull rod mechanism to avoid direct contact with fingers.
It realizes adaptive gap adjustment between the grinding wheel and the flint, avoids excessive wear of the flint and finger wear, ensures the stability of spark generation and use, and improves the user experience.
Smart Images

Figure CN223388609U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of lighters, and in particular to an adjustable grinding wheel for lighters. Background Art
[0002] Lighters are common ignition tools, and the grinding wheel, one of their key components, has an important impact on the performance and life of the lighter.
[0003] The existing grinding wheel and lighter are in a rotating structure, and the height of the grinding wheel cannot be adaptively adjusted. After the grinding wheel and the flint rub for a long time, the flint will wear out, which will cause the gap between the grinding wheel and the flint to be too large, resulting in no sparks being generated during rotation, affecting use. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides an adjustable grinding wheel for a lighter, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.
[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an adjustable grinding wheel for a lighter, comprising a lighter body and a grinding wheel body, wherein a frame and a flint are fixedly installed on the top of the lighter body respectively, two movable grooves are symmetrically provided on the inner wall of the frame, a fixed plate is fixedly assembled inside the movable groove, one end of three springs is fixedly connected to the top of the fixed plate, and the other end of the three springs is fixedly connected to an arc plate, the inner wall of the arc plate is rotatably connected to a rotating shaft, and four positioning strips are fixedly assembled on the outer edge of the rotating shaft, both sides of the grinding wheel body are provided with fitting plates, four slots are provided on the inner walls of the grinding wheel body and the two slots, a cavity is provided in the inner cavity of the rotating shaft, a movable disk is slidably connected to the inner wall of the cavity, two limit blocks are symmetrically fixedly assembled on the outer side of the movable disk, one end of spring 2 is fixedly connected to the outer side of the movable disk, and the other end of spring 2 is fixedly connected to the positioning disk, a pull rod is fixedly connected to the side of the movable disk close to spring 2, and the end of the pull rod away from the movable disk is fixedly connected to the rotating disk.
[0006] As a preferred embodiment, two sliding grooves are symmetrically opened on the inner wall of the cavity, the two limit blocks are slidably connected to the inner walls of the two sliding grooves, the outer edge diameter of the movable disk is adapted to the inner wall diameter of the cavity, a through hole is opened on the outer side of the rotating shaft to communicate with the cavity, and the pull rod is slidably connected to the inner wall of the through hole.
[0007] By adopting the above technical solution, the rotating turntable can drive the limit block to rotate on the inner wall of the slide groove, and then drive the rotating shaft and the grinding wheel body to rotate and contact the flint, so there is no need to directly rotate the grinding wheel body with fingers.
[0008] As a preferred embodiment, the outer sides of the two bonding plates are bonded to the inner wall of the frame, and the grinding wheel body is arranged above the flint.
[0009] By adopting the above technical solution, it is possible to ensure that the bonding plate is stably arranged on the inner wall of the frame, and to ensure that the grinding wheel body does not swing when rotating.
[0010] As a preferred embodiment, the number of the fixed plates, spring one and arc plates is four, and the four groups of fixed plates, spring one and arc plates are symmetrically arranged on the inner walls of the two movable grooves, and the four arc plates are symmetrically arranged on the outer edge positions of both ends of the rotating shaft.
[0011] By adopting the above technical solution, it is possible to limit the two ends of the rotating shaft, so that the grinding wheel body can be pressed to adjust the gap between the grinding wheel body and the flint, thereby avoiding excessive wear of the flint and excessive gap between the grinding wheel body, which will cause the grinding wheel body to be unable to contact the flint when rotating.
[0012] As a preferred embodiment, the middle portion of the outer edge of the grinding wheel body is concave, and a plurality of strip-shaped protrusions are evenly distributed on the outer edge of the grinding wheel body.
[0013] By adopting the above technical solution, it is ensured that sparks can be quickly generated when the strip-shaped protrusion contacts the flint, and the problem of large wear on the hands of users when rotating the hands of traditional tooth-shaped structures is avoided, which can easily cause discomfort.
[0014] As a preferred embodiment, a sealing cover is rotatably connected to the top of the lighter body, and the four positioning strips are inserted into the inner walls of the four slots.
[0015] By adopting the above technical solution, the sealing cover can cover the upper part of the lighter body, ensuring that the frame will not be directly exposed when not in use, and the positioning strip can be used to match the card slot to connect the rotating shaft and the grinding wheel body, thereby facilitating the transmission of the rotating shaft's rotational force to the grinding wheel body.
[0016] Beneficial effects of this application:
[0017] 1. This adjustable grinding wheel for a lighter is provided with a fixed plate, a spring 1 and an arc-shaped plate, so that when the grinding wheel body is pressed, the arc-shaped plate and the spring 1 are subjected to the same pressure, and then the spring 1 generates a contraction force until the outer edge of the grinding wheel body contacts the flint, so that the gap between the flint and the grinding wheel body can be adjusted in time according to the length of the flint exposed to the outside, thereby avoiding excessive wear of the flint and excessive gap between the grinding wheel body, resulting in the grinding wheel body being unable to contact the flint when rotating, and thus unable to generate sparks, which affects the use.
[0018] 2. This adjustable grinding wheel for a lighter uses a pull rod to drag the movable disk to slide on the inner wall of the cavity by pulling the turntable until the turntable moves to the outer position of the lighter body. The turntable can then be rotated to drive the pull rod to rotate, thereby driving the limit block to rotate on the inner wall of the slide groove, and then driving the rotating shaft and the grinding wheel body to rotate and contact with the flint. There is no need to directly rotate the grinding wheel body with fingers, thus avoiding finger wear and the problem of insufficient force to rotate the grinding wheel body and unable to generate sparks. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the three-dimensional structure of this application;
[0020] Figure 2 For this application Figure 1 A in the middle is an enlarged structural diagram;
[0021] Figure 3 A schematic diagram of the local structure of this application;
[0022] Figure 4 This is a schematic diagram of the expanded structure of this application;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of this application.
[0024] Numbers in the figure: 1. Lighter body; 2. Sealing cover; 3. Flint; 4. Frame; 5. Movable slot; 6. Fixed plate; 7. Spring 1; 8. Arc plate; 9. Rotating shaft; 10. Positioning strip; 11. Grinding wheel body; 12. Slot; 13. Fitting plate; 14. Cavity; 15. Moving disk; 16. Limit block; 17. Spring 2; 18. Positioning disk; 19. Pull rod; 20. Turntable. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0026] Reference Figure 1-5A lighter adjustable grinding wheel comprises a lighter body 1 and a grinding wheel body 11. A frame 4 and a flint 3 are fixedly installed on the top of the lighter body 1. Two movable grooves 5 are symmetrically opened on the inner wall of the frame 4. A fixed plate 6 is fixedly assembled inside the movable groove 5. The top of the fixed plate 6 is fixedly connected to one end of three springs 7, and the other end of the three springs 7 is fixedly connected to an arc plate 8. The inner wall of the arc plate 8 is rotatably connected to a rotating shaft 9. Four positioning strips 10 are fixedly assembled on the outer edge of the rotating shaft 9. Both sides of the grinding wheel body 11 are provided with There is a bonding plate 13, and the inner walls of the grinding wheel body 11 and the two slots 12 are each provided with four slots 12. The inner cavity of the rotating shaft 9 is provided with a cavity 14. The inner wall of the cavity 14 is slidably connected to a movable disk 15. Two limit blocks 16 are symmetrically fixedly assembled on the outer side of the movable disk 15. One end of the spring 2 17 is fixedly connected to the outer side of the movable disk 15, and the other end of the spring 2 17 is fixedly connected to the positioning disk 18. The side of the movable disk 15 close to the spring 2 17 is fixedly connected to a pull rod 19, and the end of the pull rod 19 away from the movable disk 15 is fixedly connected to a turntable 20.
[0027] See Figure 5 Two chute grooves are symmetrically opened on the inner wall of the cavity 14, and two limit blocks 16 are slidably connected to the inner walls of the two chute grooves. The outer diameter of the movable disk 15 is adapted to the inner wall diameter of the cavity 14. A through hole is opened on the outer side of the rotating shaft 9 to communicate with the cavity 14. The pull rod 19 is slidably connected to the inner wall of the through hole, so that the rotating turntable 20 can drive the limit blocks 16 to rotate on the inner wall of the chute and then drive the rotating shaft 9 and the grinding wheel body 11 to rotate and contact the flint 3, so there is no need to directly rotate the grinding wheel body 11 with your fingers.
[0028] See Figure 4 The outer sides of the two bonding plates 13 are in contact with the inner wall of the frame 4, and the grinding wheel body 11 is arranged above the flint 3, so that the bonding plates 13 can be stably arranged on the inner wall of the frame 4, ensuring that the grinding wheel body 11 will not swing during rotation.
[0029] See Figure 2 The number of fixed plates 6, springs 7 and arc plates 8 are four, and the four groups of fixed plates 6, springs 7 and arc plates 8 are symmetrically arranged on the inner walls of the two movable grooves 5. The four arc plates 8 are symmetrically arranged at the outer edges of the two ends of the rotating shaft 9, so that they can limit the two ends of the rotating shaft 9, so that the grinding wheel body 11 can be pressed to adjust the gap between the grinding wheel body 11 and the flint 3, thereby avoiding excessive wear of the flint 3 and excessive gap between the grinding wheel body 11, which causes the grinding wheel body 11 to be unable to contact the flint 3 when rotating.
[0030] See Figure 3 and Figure 4The middle part of the outer edge of the grinding wheel body 11 is concave, and a number of strip-shaped protrusions are evenly distributed on the outer edge of the grinding wheel body 11, so that sparks can be quickly generated when the strip-shaped protrusions come into contact with the flint 3, and the traditional tooth structure is avoided. When the user's hand rotates, the wear on the hand is large, which is easy to cause discomfort.
[0031] See Figure 1 The top of the lighter body 1 is rotatably connected to a sealing cover 2, and four positioning strips 10 are inserted into the inner walls of the four card slots 12, so that the sealing cover 2 can cover the top of the lighter body 1, ensuring that the frame 4 will not be directly exposed when not in use. The positioning strips 10 can cooperate with the card slots 12 to connect the rotating shaft 9 and the grinding wheel body 11, thereby facilitating the transmission of the rotating force of the rotating shaft 9 to the grinding wheel body 11.
[0032] Working principle: When using this device, first open the sealing cover 2, then use your thumb to press the bottom of the grinding wheel body 11 to contact the flint 3, thereby generating sparks. While pressing the grinding wheel body 11, the arc plate 8 and the spring 17 will be subjected to the same pressure, and then the spring 17 will generate a contraction force until the outer edge of the grinding wheel body 11 contacts the flint 3, so that the gap between the flint 3 and the grinding wheel body 11 can be adjusted in time according to the length of the flint 3 exposed to the outside, thereby avoiding excessive wear of the flint 3 and excessive gap between the grinding wheel body 11, which causes the grinding wheel body 11 to rotate. When the turntable 20 moves to the outer position of the lighter body 1, the turntable 20 can be rotated to drive the pull rod 19 to rotate, thereby driving the limit block 16 to rotate on the inner wall of the slide groove, and then driving the rotating shaft 9 and the grinding wheel body 11 to rotate and contact the flint 3, thereby eliminating the need to directly rotate the grinding wheel body 11 with fingers, avoiding finger wear and the problem of insufficient force to rotate the grinding wheel body 11 and unable to generate sparks.
[0033] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.
Claims
1. A lighter adjustable grinding wheel, comprising a lighter body (1) and a grinding wheel body (11), characterized in that: The top of the lighter body (1) is fixedly mounted with a frame (4) and a flint (3), and the inner wall of the frame (4) is symmetrically provided with two movable grooves (5). The inner part of the movable groove (5) is fixedly assembled with a fixed plate (6). The top of the fixed plate (6) is fixedly connected with one end of three springs (7), and the other end of the three springs (7) is fixedly connected with an arc plate (8). The inner wall of the arc plate (8) is rotatably connected with a rotating shaft (9), and the outer edge of the rotating shaft (9) is fixedly assembled with four positioning strips (10). Both sides of the grinding wheel body (11) are provided with a bonding plate (13). The grinding wheel body (11) The inner walls of the two slots (12) are each provided with four slots (12), the inner cavity of the rotating shaft (9) is provided with a cavity (14), the inner wall of the cavity (14) is slidably connected to a movable disk (15), the outer side of the movable disk (15) is symmetrically fixedly equipped with two limit blocks (16), the outer side of the movable disk (15) is fixedly connected to one end of a spring 2 (17), the other end of the spring 2 (17) is fixedly connected to a positioning disk (18), the side of the movable disk (15) close to the spring 2 (17) is fixedly connected to a pull rod (19), and the end of the pull rod (19) away from the movable disk (15) is fixedly connected to a rotating disk (20).
2. The adjustable grinding wheel for lighter according to claim 1, characterized in that: The inner wall of the cavity (14) is symmetrically provided with two slide grooves, the two limit blocks (16) are slidably connected to the inner walls of the two slide grooves, the outer diameter of the movable plate (15) is adapted to the inner wall diameter of the cavity (14), the outer side of the rotating shaft (9) is provided with a through hole communicating with the cavity (14), and the pull rod (19) is slidably connected to the inner wall of the through hole.
3. The adjustable grinding wheel for lighter according to claim 1, characterized in that: The outer sides of the two bonding plates (13) are bonded to the inner wall of the frame (4), and the grinding wheel body (11) is arranged above the flint (3).
4. The adjustable grinding wheel for lighter according to claim 1, characterized in that: The number of the fixed plates (6), springs (7) and arc plates (8) is four, and the four groups of fixed plates (6), springs (7) and arc plates (8) are symmetrically arranged on the inner walls of the two movable grooves (5), and the four arc plates (8) are symmetrically arranged on the outer edges of both ends of the rotating shaft (9).
5. The adjustable grinding wheel for lighter according to claim 1, characterized in that: The middle portion of the outer edge of the grinding wheel body (11) is concave, and a plurality of strip-shaped protrusions are evenly distributed on the outer edge of the grinding wheel body (11).
6. The adjustable grinding wheel for lighter according to claim 1, characterized in that: The top of the lighter body (1) is rotatably connected to a sealing cover (2), and the four positioning bars (10) are plugged into the inner walls of the four slots (12).