Prying plate of ignition frame of grinding wheel lighter

By optimizing the geometry and structural design of the flint lighter pry bar, the problems of difficult assembly, wear and insufficient compatibility of traditional pry bars have been solved, achieving efficient automated assembly and extending service life.

CN224003753UActive Publication Date: 2026-03-17FUJIAN ZHENGDING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional flint lighter pry bars suffer from problems such as lack of positioning structure, high frictional resistance, insufficient structural strength, and poor adaptability, resulting in low assembly efficiency, easy wear and tear due to friction, and high defect rate in automated assembly.

Method used

The design optimizes the geometry, adds chamfers and flexible slots, uses arc-shaped plates and fixed columns, and optimizes the structure of the skid plate to adapt to automated assembly, reducing frictional resistance and enhancing structural strength.

Benefits of technology

It improves assembly efficiency, reduces offset rate, decreases frictional resistance, extends component life, and enhances adaptability, making it suitable for both automated and manual assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lighters, and provides a crow plate of an ignition frame of a grinding wheel lighter, which comprises a crow plate main body, and a fixed column II extending outwards is arranged on the crow plate main body; different production requirements are used for prying the air valve; a chamfer II is formed in the elliptical square opening structure of the lower radius of the front end; an elastic notch is further formed in the front end position of the front-end opening groove, the air valve can be easily pressed and buckled, pressing and buckling resistance is reduced, frictional resistance is optimized, the elastic buckling air valve is firmer, a third chamfer is arranged on the whole groove of the bottom of the opening groove, and arc-shaped oval blocks are arranged on the two sides of the periphery of the protruding position of the bottom of the rear end of the crow plate body and used for being suitable for automatic assembly and improving production efficiency; the assembly deviation rate is reduced by 90%; a chamfer II and a chamfer III are designed, so that the crow plate is not obstructed by the outside, and the wear life of parts is prolonged; and the second fixing column and the non-column design cover different production requirements, and automatic and manual assembly scenes are adapted.
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Description

Technical Field

[0001] This utility model relates to the field of lighter technology, specifically a pry bar for the ignition frame of a flint lighter. Background Technology

[0002] The pry bar of a traditional flint lighter has the following drawbacks:

[0003] 1. Lack of positioning structure: The cooperation between the skid and the head unit lacks a guiding design, requiring repeated manual adjustments during assembly, which is inefficient and prone to deviation, resulting in unstable ignition function of the skid-driven gas valve.

[0004] 2. High frictional resistance: The front end of the skid plate and the valve latch position are not designed with elastic grooves, resulting in high resistance to latching the valve. The front end is not chamfered, which will cause wear and tear with long-term friction, shortening the service life and increasing ignition resistance.

[0005] 3. Insufficient structural strength: The area where the skid ends connect to the machine head is not designed with a reinforced support structure, which makes it prone to deformation or breakage under long-term pressure.

[0006] 4. Poor adaptability: Traditional skids are mostly regular rectangular structures, which are difficult to match with the precise assembly of automated systems, resulting in a high defect rate during automated assembly.

[0007] To address this issue, those skilled in the art have proposed a pry bar for the ignition frame of a flint lighter to solve the problems mentioned in the background art. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a pry bar for a flint lighter ignition stand. By optimizing the geometry, adding chamfers and strengthening the positioning design, an elastic opening groove is designed at the lower radius elliptical square opening at the front end, and arc-shaped plates are provided on both sides of the outer perimeter of the protruding position at the bottom of the rear end. This solves the problems of difficult assembly, easy wear and insufficient adaptability of traditional pry bars.

[0009] A pry bar for a flint lighter ignition stand includes a pry bar body. The pry bar body has arc-shaped plates on both sides of the outer periphery of the protruding part at the rear bottom of the pry bar body, which is suitable for automated assembly to improve production efficiency and reduce the assembly offset rate by 90%. The front end has a chamfered corner two at the lower radius elliptical square opening structure. The bottom of the front opening groove has a chamfered corner three. An elastic groove is also provided at the position of the lower radius elliptical square opening near the chamfered corner three. The pry bar body has a protruding block near the arc-shaped elliptical block.

[0010] Preferably, the main body of the pry bar is provided with an outwardly extending fixing post 2.

[0011] Preferably, the main body of the pry bar does not have an outwardly extending fixing post one or fixing post two.

[0012] Preferably, the radius of curvature of the arc-shaped plate is 1.5mm-2.0mm.

[0013] Preferably, the angle of chamfer two is 30° and the angle of chamfer three is 45°.

[0014] Preferably, the lower radius elliptical shape at the front end is provided with an elastic groove near the chamfer three.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Improved assembly efficiency: The curved plate is suitable for automated assembly, improving production efficiency; assembly offset rate is reduced by 90%;

[0017] 2. Optimized friction resistance: The chamfer two and chamfer three designs reduce ignition operation resistance by 40% and extend component life;

[0018] 3. Strong structural adaptability: The front end has an elliptical shape with an elastic groove near the chamfer three, which helps to easily snap the air valve and reduce snapping resistance. The friction resistance is optimized, and the elastic snapping air valve is more reliable. The fixed column two and columnless design cover different production needs and are suitable for automated and manual assembly scenarios. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a bottom view of the structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0024] In the diagram: 3. Pry bar; 301. Arc-shaped plate; 302. Chamfer two; 304. Chamfer three; 3003. Fixing post two; 305. Elastic groove; 306. Protrusion block. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] As attached Figure 1 To be continued Figure 5 As shown:

[0027] Example 1: According to Figures 1-5 As shown, this utility model provides a pry bar for a flint lighter ignition stand, including a pry bar body 3. The pry bar body 3 has arc-shaped plates 301 on both sides of the protruding part at the rear bottom, suitable for automated assembly to improve production efficiency and reduce assembly offset by 90%. The front end has an elliptical square opening with a chamfer 302 at the bottom. The bottom of the front opening slot has a chamfer 304. An elastic groove 305 is also provided near the chamfer 304 at the elliptical square opening near the chamfer 304. A protruding block 306 is provided under the hand pressure plate at the upper part of the pry bar body 3 near the arc-shaped plate 301. The pry bar body 3 has an outwardly extending fixing post 3003. The pry bar body 3 does not have an outwardly extending fixing post 303 or fixing post 3003. The radius of curvature of the arc-shaped plate 301 is 1.5mm-2.0mm. The angle of the chamfer 302 is 30°, and the angle of the chamfer 304 is 45°.

[0028] Injection molding: The main body of the skid plate is injection molded using high-strength engineering plastics (such as PA66+GF30);

[0029] Finishing: The curved plate 301 and the chamfered parts are CNC precision machined, with tolerance controlled within ±0.02mm;

[0030] Surface treatment: Enhanced wear resistance through nickel + chromium electroplating (applicable to metal materials).

[0031] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0032] In the description of this utility model, 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 one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0033] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] 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.

[0035] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pry plate for a grinder lighter stand, characterized by: The pry plate body (3) is provided with arc-shaped plates (301) on the outer periphery of the protruding position at the bottom of the rear end, which is suitable for automatic assembly to improve production efficiency; the assembly offset rate is reduced by 90%; the front end is provided with a chamfer two (302) at the bottom of the semicircular opening with an elliptical shape; the bottom of the opening slot is provided with a chamfer three (304); the position close to the chamfer three (304) at the front end semicircular opening with an elliptical shape is also provided with an elastic slot (305); and the position close to the arc-shaped plate (301) on the upper hand pressing plate of the pry plate body (3) is provided with a protruding block (306).

2. A pry plate for a grinding wheel lighter stand as defined in claim 1, wherein: The pry plate body (3) is provided with a fixed column two (3003) extending outward.

3. A pry plate for a grinding wheel lighter stand as defined in claim 1 wherein: The pry plate body (3) is not provided with a fixed column one (303) or a fixed column two (3003) extending outward. ​ 4. A pry plate for a grinding wheel lighter stand as defined in claim 3 wherein: The curvature radius of the arc-shaped plate (301) is 1.5mm-2.5mm.

5. A pry plate for a grinding wheel lighter stand as defined in claim 3 wherein: 5 The angle of the chamfer two (302) is 30°, and the angle of the chamfer three (304) is 45°.

6. A pry plate for a grinding wheel lighter stand as defined in claim 1 wherein: The position close to the arc-shaped plate (301) on the upper hand pressing plate of the pry plate body (3) is provided with a protruding block (306). ​ 7. A pry plate for a grinding wheel lighter stand as defined in claim 1 wherein: The position close to the chamfer three (304) at the front end semicircular opening with an elliptical shape is also provided with an elastic slot (305). The position close to the chamfer three (304) at the front end semicircular opening with an elliptical shape is also provided with an elastic slot (305). ​