Novel lock-free pocket knife structure with sliding main shaft

Abstract

The novel lock-free pocket knife structure with the sliding main shaft comprises a blade, a first knife handle piece and a second knife handle piece, knife handle elastic arms are arranged on the inner side of the first knife handle piece and the inner side of the second knife handle piece, and the ends of the knife handle elastic arms are hinged to the end of the blade. A sealing strip is installed between the back of the first knife handle piece and the back of the second knife handle piece. According to the utility model, the structure is simple, the original structure that the main shaft is fixed and the back rib spring piece is upwarped is changed, the back rib spring piece is designed into a fixed sealing strip, and the original fixed main shaft is designed into a'movable main shaft 'which moves up and down, so that the back of the knife handle is completely sealed, and external pollutants entering the inner side of the knife handle can be effectively reduced; the elastic mechanism is upgraded to two knife handle elastic arms cut on the knife handle from the original one back rib spring piece, the elastic force is uniform and symmetrical, inclined grinding of the blade caused by unevenness of the back rib spring piece of the original structure can be avoided, fatigue of the elastic piece can be better resisted, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a novel lockless pocket knife structure with a sliding spindle. Background Technology

[0002] Folding knives are commonly used in daily life, bringing many conveniences. Among the folding knife styles on the market, the non-locking pocket knife is a type of folding knife. Its main structure relies on a back spring plate located at the handle to provide the locking force for the blade. The back spring plate is a slightly curved, elastic metal piece that holds the blade in place by its spring force. However, the blade is fixed by the spindle, and rotation lifts the back spring plate, causing it to protrude above the handle. This results in an unsealed structure, allowing external contaminants to easily enter over time, increasing the blade's rotational resistance, increasing friction between the blade and the back spring plate, and increasing wear on the back spring plate. Prolonged use also makes the back spring plate prone to fatigue and breakage, leading to suboptimal performance. Therefore, to avoid the shortcomings of the existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a new type of lockless pocket knife structure with a simple structure and good performance of main shaft sliding.

[0004] This utility model is achieved through the following technical solution:

[0005] A novel lockless pocket knife structure with a sliding spindle includes a blade, a first handle plate, and a second handle plate. Both the first and second handle plates have handle spring arms on their inner sides. The ends of the handle spring arms are hinged to the ends of the blade. A sealing strip is installed between the back of the first handle plate and the back of the second handle plate.

[0006] Furthermore, the blade is hinged to the spring arm of the tool holder via a spindle.

[0007] Furthermore, the upper end face of the blade is flush with the upper end face of the sealing strip.

[0008] Furthermore, the end of the blade is provided with an abutting corner portion that abuts against the end of the sealing strip.

[0009] Furthermore, the handle spring arm is integrally formed with the first handle plate, and the handle spring arm is integrally formed with the second handle plate.

[0010] Furthermore, a U-shaped slot is provided on the outer side of the tool holder elastic arm.

[0011] Furthermore, the first tool holder plate, the sealing strip, and the second tool holder plate are connected by connecting pins.

[0012] Furthermore, both the end of the handle elastic arm and the end of the blade are provided with a spindle hinge hole.

[0013] Furthermore, the first tool holder plate, the second tool holder plate, and the sealing strip are all provided with corresponding connection holes.

[0014] Furthermore, both the first and second tool holder plates are made of stainless steel or titanium alloy.

[0015] Compared to existing technologies, this utility model features handle spring arms on the inner sides of both the first and second handle plates, with the ends of the spring arms hinged to the blade ends. A sealing strip is installed between the backs of the first and second handle plates, simplifying the pocket knife's structure. While maintaining the overall knife without locking, it changes the previous structure where the main shaft remained stationary and the back spring plate was raised. The back spring plate is designed as a fixed sealing strip, and the original fixed main shaft is designed as a movable main shaft that can move up and down. This achieves complete sealing of the back of the handle, effectively reducing the entry of external contaminants into the inside of the handle. The spring mechanism is upgraded from a single back spring plate to two handle spring arms cut from the handle, providing uniform and symmetrical spring force. This avoids the blade's uneven grinding caused by the uneven back spring plate in the previous structure and also improves resistance to fatigue of the spring components, resulting in better performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the novel lockless pocket knife structure with sliding main shaft of this utility model.

[0018] Figure 2 This is an exploded view of the novel lockless pocket knife structure with sliding main shaft of this utility model.

[0019] In the diagram: 1-blade; 2-first tool holder plate; 3-second tool holder plate; 4-tool holder spring arm; 5-sealing strip; 6-spindle; 7-abutting corner; 8-groove; 9-connecting pin; 10-spindle hinge hole; 11-connecting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 The present invention discloses a novel lockless pocket knife structure with a sliding spindle, comprising a blade 1, a first handle plate 2 and a second handle plate 3. Both the first handle plate 2 and the second handle plate 3 are provided with handle spring arms 4 on their inner sides. The ends of the handle spring arms 4 are hinged to the ends of the blade 1. A sealing strip 5 is installed between the back of the first handle plate 2 and the back of the second handle plate 3. Both the first handle plate 2 and the second handle plate 3 have handle spring arms 4 on their inner sides. The ends of the handle spring arms 4 are hinged to the ends of the blade 1. A sealing strip 5 is installed between the back of the first handle plate 2 and the back of the second handle plate 3. This simplifies the structure of the pocket knife. While maintaining the overall knife without locking, it changes the previous structure where the main shaft was stationary and the back bone spring plate was raised. The back bone spring plate is designed as a fixed sealing strip 5, and the original fixed main shaft is designed as a "movable main shaft" that can move up and down. This achieves a complete seal on the back of the handle, which can effectively reduce the entry of external contaminants into the inside of the handle. The spring mechanism is upgraded from the previous single back bone spring plate to two handle spring arms 4 cut on the handle. The spring force is uniform and symmetrical, which can avoid the blade's oblique grinding caused by the unevenness of the back bone spring plate in the previous structure, and can also better resist the fatigue of the spring component, resulting in better performance.

[0022] The blade 1 is hinged to the tool holder spring arm 4 via the spindle 6, which makes the blade 1 stable in installation and smooth in rotation.

[0023] The upper end face of the blade 1 is flush with the upper end face of the sealing strip 5, so that the blade fits tightly with the sealing strip 5 after opening, thus improving the stability of the blade.

[0024] The end of the blade 1 is provided with an abutting corner 7 that abuts against the end of the sealing strip 5, so that the blade is stably connected with the sealing strip 5 after it is opened, thereby improving the stability of the blade.

[0025] The handle elastic arm 4 is integrally formed with the first handle plate 2, and the handle elastic arm 4 is integrally formed with the second handle plate 3. The first handle plate 2, the second handle plate 3 and the handle elastic arm 4 are all elastic components.

[0026] The outer side of the handle spring arm 4 is provided with a U-shaped slot 8 to facilitate the up and down movement of the handle spring arm 4.

[0027] The first tool holder plate 2, the sealing strip 5, and the second tool holder plate 3 are connected by connecting nails 9, which facilitates quick and stable installation between the first tool holder plate 2, the sealing strip 5, and the second tool holder plate 3.

[0028] Both the end of the tool holder spring arm 4 and the end of the blade 1 are provided with spindle hinge holes 10 to facilitate the installation of the spindle 6.

[0029] The first tool holder plate 2, the second tool holder plate 3, and the sealing strip 5 are all provided with corresponding connecting holes 11, which facilitates the alignment and installation of the connecting nail 9 and makes the installation of the first tool holder plate 2, the second tool holder plate 3, and the sealing strip 5 more stable.

[0030] Both the first handle plate 2 and the second handle plate 3 are made of stainless steel or titanium alloy. If the handle is made of titanium alloy, the handle spring arm 4 will also be made of titanium alloy, which is far superior to the elasticity of the previous steel back spring plate.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of lockless pocket knife structure with spindle sliding, characterized in that: The utility model discloses a cutting blade, first handle piece and second handle piece, the inner side of first handle piece and second handle piece is equipped with handle spring arm, the end of handle spring arm is hinged with the end of cutting blade, and the back of first handle piece is installed with sealing strip between the back of second handle piece.

2. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The cutting blade is hinged with the handle spring arm through a main shaft.

3. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The upper end surface of the cutting blade is flush with the upper end surface of the sealing strip.

4. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The end of the cutting blade is provided with an abutting corner portion abutting against the end of the sealing strip.

5. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The handle spring arm is integrally formed with the first handle piece, and the handle spring arm is integrally formed with the second handle piece.

6. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The outer side of the handle spring arm is provided with a U-shaped slot.

7. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The first handle piece, the sealing strip and the second handle piece are connected through connecting nails.

8. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The end of the handle spring arm and the end of the cutting blade are both provided with a main shaft hinge hole.

9. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The first handle piece, the second handle piece and the sealing strip are all provided with corresponding connecting holes.

10. The new type of spindle sliding lockless pocket knife structure according to claim 1, characterized in that: The first handle piece and the second handle piece are both stainless steel pieces or titanium alloy pieces.

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