Main shaft bearing and secondary oil storage lining structure of lock-free pocket knife

Abstract

The utility model discloses a main shaft bearing and secondary oil storage lining structure of a lock-free pocket knife, which comprises a blade, a first knife handle piece, a second knife handle piece and a secondary lining, the blade is hinged with the first knife handle piece and the second knife handle piece through a main shaft, and the blade is provided with a miniature bearing connected with the main shaft. The second-level gasket is arranged between the first cutter handle piece and the blade or between the second cutter handle piece and the blade, and a plurality of oil storage grooves are formed in the contact position of the second-level gasket and the blade. According to the utility model, the structure is simple, the friction between the main shaft and the blade is changed into rolling friction, so that the friction between the main shaft and the blade is greatly reduced, the service life of parts is prolonged, the opening and closing smoothness is increased, and the contact area between the blade and the secondary gasket is effectively reduced; parts are effectively lubricated and protected, the service life is prolonged, the overall structural stability is improved, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a spindle bearing and secondary oil reservoir liner structure for a lockless pocket knife. Background Technology

[0002] Folding knives are commonly used in daily life, bringing much convenience. Among the folding knife styles on the market, the non-locking pocket knife is a type. Its main structure relies on a back spring plate located at the handle to lock the blade. This back spring plate is a slightly curved, elastic metal piece that holds the blade in place. However, existing non-locking pocket knives have direct contact between the spindle hole and the spindle, resulting in sliding friction during blade opening and closing, leading to high friction and wear. Furthermore, the blade directly contacts the inner liner of the handle, resulting in a large contact area, high friction, and lack of lubrication, leading to poor performance. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a simple structure for the main shaft bearing and secondary oil storage liner of a lockless pocket knife.

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

[0005] A non-locking pocket knife spindle bearing and secondary oil reservoir liner structure includes a blade, a first blade holder, a second blade holder, and a secondary liner. The blade is hinged to the first and second blade holders via a spindle. The blade is equipped with a miniature bearing for connection to the spindle. The secondary liner is located between the first blade holder and the blade, or between the second blade holder and the blade. Several oil reservoir grooves are provided at the contact point between the secondary liner and the blade.

[0006] Furthermore, the oil storage tanks are arranged in a circular array.

[0007] Furthermore, a back spring plate is installed between the back of the first handle plate and the back of the second handle plate.

[0008] Furthermore, the end of the blade is provided with an abutting corner that abuts against the end of the spinal spring plate.

[0009] Furthermore, the end of the blade is provided with an outer arc surface, and the end of the spinal spring plate is provided with an inner arc surface that matches the outer arc surface.

[0010] Furthermore, the upper end face of the blade is flush with the upper end face of the spinal spring plate.

[0011] Furthermore, the first tool holder plate, the second tool holder plate, and the secondary bushing are fixedly connected by rivets.

[0012] Furthermore, the first tool holder plate, the second tool holder plate, and the secondary liner plate are all provided with corresponding connecting holes.

[0013] Furthermore, the secondary liner is provided with a through hole through which the main shaft passes.

[0014] Furthermore, the blade is provided with an operating groove.

[0015] Compared to existing technologies, this invention features a miniature bearing mounted on the blade for connection to the spindle. A secondary liner is positioned between the first tool holder and the blade, or between the second tool holder and the blade. Several oil reservoirs are provided at the contact point between the secondary liner and the blade, transforming the friction between the spindle and the blade into rolling friction. This significantly reduces friction between the spindle and the blade, extends the service life of the parts, increases the smoothness of opening and closing, and effectively reduces the contact area between the blade and the secondary liner. The oil reservoirs at the contact point between the secondary liner and the blade store lubricating oil and absorb metal debris generated during friction, effectively lubricating and protecting the parts, improving their service life, and resulting in excellent 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 main shaft bearing and secondary oil reservoir liner structure of the lockless pocket knife of this utility model.

[0018] Figure 2 This is an exploded view of the main shaft bearing and secondary oil reservoir liner structure of the lockless pocket knife of this utility model.

[0019] In the figure: 1-blade; 2-first tool holder plate; 3-second tool holder plate; 4-secondary liner; 5-spindle; 6-miniature bearing; 7-oil reservoir; 8-back spring plate; 9-angle abutment; 10-outer arc surface; 11-inner arc surface; 12-rivet; 13-connecting hole; 14-through hole; 15-operating groove. 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 main shaft bearing and secondary oil reservoir liner structure for a lockless pocket knife, comprising a blade 1, a first blade holder 2, a second blade holder 3, and a secondary liner 4. The blade 1 is hinged to the first blade holder 2 and the second blade holder 3 via a main shaft 5. The blade 1 is equipped with a miniature bearing 6 for connection to the main shaft 5. The secondary liner 4 is located between the first blade holder 2 and the blade 1, or between the second blade holder 3 and the blade 1. Several oil reservoir grooves 7 are provided at the contact point between the secondary liner 4 and the blade 1. A miniature bearing 6 for connecting the spindle 5 is installed on the blade 1. The secondary liner 4 is located between the first tool holder 2 and the blade 1, or between the second tool holder 3 and the blade 1. Several oil reservoirs 7 are provided at the contact point between the secondary liner 4 and the blade 1, so that the friction between the spindle 5 and the blade 1 becomes rolling friction, thereby greatly reducing the friction between the spindle 5 and the blade 1, extending the service life of the parts, increasing the smoothness of opening and closing, and effectively reducing the contact area between the blade 1 and the secondary liner 4. The oil reservoirs 7 added at the contact point between the secondary liner 4 and the blade 1 are used to store lubricating oil and absorb metal debris generated during the friction process, effectively lubricating and protecting the parts, improving service life, and achieving good performance.

[0022] The oil storage tanks 7 are arranged in a circular array, which improves the uniformity of lubricating oil storage and can effectively absorb metal debris generated during friction.

[0023] A back spring plate 8 is installed between the back of the first blade handle plate 2 and the back of the second blade handle plate 3, which facilitates the control of the opening and closing positioning of the blade 1.

[0024] The end of the blade 1 is provided with an abutting corner 9 that abuts against the end of the back spring plate 8, so that the blade 1 is stably connected with the back spring plate 8 after opening, thereby improving the stability of the blade.

[0025] The blade 1 has an outer arc surface 10 at its end, and the back spring plate 8 has an inner arc surface 11 that matches the outer arc surface 10 at its end. This ensures that the blade 1 is tightly connected to the back spring plate 8 when it is open, preventing sharp corners on the back of the blade after it is folded. This avoids scratching the human body or objects, improving the safety of the knife during use. The blade is highly safe, and it also ensures a tight fit between the blade and the back of the blade, improving the overall stability of the knife structure and providing a good user experience.

[0026] The upper end face of the blade 1 is flush with the upper end face of the back spring plate 8, so that the blade fits tightly with the sealing strip 5 after opening, thus improving the stability of the blade.

[0027] The first tool holder plate 2, the second tool holder plate 3, and the secondary liner plate 4 are fixedly connected by rivets 12, which facilitates a stable connection between the first tool holder plate 2, the second tool holder plate 3, and the secondary liner plate 4.

[0028] The first tool holder plate 2, the second tool holder plate 3, and the secondary liner plate 4 are all provided with corresponding connecting holes 13, which facilitates the alignment and assembly of the first tool holder plate 2, the second tool holder plate 3, and the secondary liner plate 4.

[0029] The secondary liner 4 is provided with a through hole 14 for the main shaft 5 to pass through, so as to avoid the main shaft 5 from contacting the secondary liner 4 and reducing the smoothness of rotation.

[0030] The blade 1 is provided with an operating groove 15 to facilitate the opening and closing of the blade 1.

[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 spindle bearing and secondary oil reservoir liner structure for a lockless pocket knife, characterized in that: The utility model discloses a knife blade, first knife handle piece, second knife handle piece and secondary backing piece, the knife blade is hinged with first knife handle piece and second knife handle piece through main shaft, the knife blade is equipped with micro bearing for the connection of main shaft, the secondary backing piece is arranged between first knife handle piece and the knife blade or the secondary backing piece is arranged between second knife handle piece and the knife blade, and a plurality of oil storage grooves are arranged at the contact of secondary backing piece and the knife blade.

2. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 1, characterized in that: The oil storage grooves are circular array distribution.

3. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 1, characterized in that: The back of first knife handle piece and the back of second knife handle piece are equipped with back bone spring piece.

4. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 3, characterized in that: The end of the knife blade is equipped with abutting corner part abutting against the end of back bone spring piece.

5. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 3, characterized in that: The end of the knife blade is equipped with outer arc surface, and the end of back bone spring piece is equipped with inner arc surface matched with the outer arc surface.

6. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 3, characterized in that: The upper end surface of the knife blade is flush with the upper end surface of back bone spring piece.

7. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 1, characterized in that: First knife handle piece, second knife handle piece and secondary backing piece are fixedly connected through rivet.

8. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 1, characterized in that: First knife handle piece, second knife handle piece and secondary backing piece are all equipped with corresponding connecting hole.

9. The main shaft bearing and secondary oil reservoir gasket structure of the lockless pocket knife according to claim 1, characterized in that: The secondary backing piece is equipped with through hole for the passing of main shaft.

10. The lockless pocket knife's spindle bearing and secondary oil reservoir gasket structure of claim 1, wherein: The knife blade is equipped with operation groove.

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