A type of slide rail thrust knife
By designing a slide rail device and locking spring, the problems of slow opening and closing speed and complex structure of existing knives have been solved, realizing a slide rail thrust knife with fast opening and closing and smooth operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 姚钊怡
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing knives with blades that can slide and retract into the handle have slow opening and closing speeds, complex structures, and are not smooth to operate, resulting in a poor user experience.
The slide rail device, including slide rail, locking spring and slide rail directional screw, achieves rapid opening and closing of the blade through sliding connection and abutment block, eliminating the need for spring and locking tooth structure, with simple structure and smooth operation.
It achieves rapid opening and closing of the blade, smooth operation, good user experience, and simple structure, eliminating the need for complex spring and locking tooth structures.
Smart Images
Figure CN224446042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tool technology, specifically to a slide rail thrust knife. Background Technology
[0002] A knife is a simple, small cutting tool with a handle, typically made of a sharp steel blade. The blade can be folded into the handle, slid into the handle, or protected by a sheath, making it easy to carry and use. However, existing knives with slidable blades have relatively slow opening and closing speeds. They generally use spring or locking mechanisms, which are complex, resulting in clunky operation and a less than ideal user experience. Therefore, to avoid the shortcomings of 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 slide rail thrust knife with a simple structure and fast cutting speed.
[0004] This utility model is achieved through the following technical solution:
[0005] A sliding rail thrust knife includes a handle, a sliding rail device is installed on the inner side of the handle, the sliding rail device includes a sliding rail and a locking spring piece installed on the sliding rail, a blade is slidably connected to the inner side of the sliding rail, a sliding rail directional screw is connected to the rear side of the blade, the sliding rail is provided with an elongated guide groove extending front and rear for the sliding rail directional screw to slide on, the blade contacts the locking spring piece, and the front end of the locking spring piece is provided with a stop block for the blade to abut against after it extends out.
[0006] Furthermore, the top of the abutment block is provided with an anti-slip operation button.
[0007] Furthermore, the slide rail is provided with a slot corresponding to the abutment block.
[0008] Furthermore, the inner side of the slide rail is provided with a groove for the blade to slide and connect.
[0009] Furthermore, the contact area between the abutment block and the blade is provided with several protrusions.
[0010] Furthermore, the outer side of the handle is provided with several anti-slip protrusions.
[0011] Furthermore, a tail finger ring is installed at the rear end of the handle via a ring screw.
[0012] Furthermore, the front side of the tail finger ring is provided with a buckle, and the rear end of the knife handle is provided with a groove corresponding to the buckle.
[0013] Furthermore, the tool holder includes a left tool holder and a right tool holder, which are respectively mounted to the slide rail by tool holder screws.
[0014] Furthermore, a blade sleeve is fitted on the front side of the blade handle.
[0015] Compared to existing technologies, this utility model features a blade slidably connected to the inner side of a slide rail, with a slide rail directional screw connected to the rear side of the blade. The slide rail has an elongated guide groove extending front to back for the slide rail directional screw to slide through. The blade contacts a locking spring, and the front end of the locking spring has a stop block for the blade to abut against after it extends. In use, the blade sleeve is pulled out, and the blade sleeve smoothly slides out, enabling the blade to open quickly. Alternatively, it can be opened quickly by pushing or swinging. After opening, the stop block of the locking spring limits the blade to prevent it from retracting. There is no spring structure or locking tooth structure, making the structure simple, the operation smooth, and the user experience good. 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 schematic diagram of the structure of the slide rail thrust knife of this utility model when it is retracted;
[0018] Figure 2 This is a schematic diagram of the slide rail thrust knife of this utility model when it is opened;
[0019] Figure 3 This is an exploded view of the slide rail thrust knife of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the locking spring of this utility model.
[0021] In the diagram: 1-Knife handle; 2-Slide rail; 3-Locking spring; 4-Blade; 5-Slide rail directional screw; 6-Long guide groove; 7-Abutting block; 8-Anti-slip operation button; 9-Slot; 10-Slide groove; 11-Raised strip; 12-Anti-slip raised block; 13-Ring screw; 14-Tail finger ring; 15-Snap-on; 16-Snap-on groove; 17-Left knife handle; 18-Right knife handle; 19-Knife handle screw; 20-Knife sheath. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 4 The present invention discloses a sliding rail thrust knife, comprising a handle 1, a sliding rail device mounted on the inner side of the handle 1, the sliding rail device including a sliding rail 2 and a locking spring 3 mounted on the sliding rail 2, a blade 4 slidably connected to the inner side of the sliding rail 2, and a sliding rail directional screw 5 connected to the rear side of the blade 4. The sliding rail 2 has an elongated guide groove 6 extending front and rear for the sliding rail directional screw 5 to slide on. The blade 4 contacts the locking spring 3, and the front end of the locking spring 3 has a stop block 7 for the blade 4 to abut against after it extends. In use, pulling out the blade sheath 20 causes the blade 4 to slide out smoothly, enabling the blade 4 to open quickly, either through thrust or through a swing force. After opening, the stop block 7 of the locking spring 3 limits the blade 4 to prevent it from retracting. Without a spring structure or locking tooth structure, the structure is simple, the operation is smooth, and the user experience is good.
[0024] The top of the abutment block 7 is equipped with an anti-slip operation button 8, which makes it easy to operate the abutment block 7 and release it from the abutment block 4.
[0025] The slide rail 2 is provided with a slot 9 corresponding to the abutment block 7. Pushing the abutment block 7 into the slot 9 releases the abutment block 7 from the blade 4.
[0026] The inner side of the slide rail 2 is provided with a slide groove 10 for the blade 4 to slide smoothly and stably.
[0027] Several protrusions 11 are provided at the contact point between the abutment block 7 and the blade 4 to reduce the contact area between the locking spring 3 and the blade 4, making the blade 4 slide more smoothly and achieve a better cutting effect quickly.
[0028] The outer side of the handle 1 is provided with several anti-slip protrusions 12 to improve the anti-slip effect and improve the operating feel.
[0029] The rear end of the knife handle 1 is fitted with a tail finger ring 14 via a ring screw 13 for easy hanging of the knife.
[0030] The front side of the tail finger ring buckle 14 is provided with a buckle 15, and the rear end of the handle 1 is provided with a slot 16 corresponding to the buckle 15, so as to facilitate the quick snap-fit and positioning installation of the tail finger ring buckle 14.
[0031] The tool handle 1 includes a left tool handle 17 and a right tool handle 18. The left tool handle 17 and the right tool handle 18 are respectively installed to the slide rail 2 by tool handle screws 19, which facilitates the manufacturing and installation of the tool handle 1.
[0032] A sheath 20 is fitted on the front side of the handle 1 to protect the human body and objects from injury by the blade 4.
[0033] 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 slide rail thrust knife, characterized in that: The tool includes a handle, and a slide rail device is installed on the inner side of the handle. The slide rail device includes a slide rail and a locking spring piece installed on the slide rail. A blade is slidably connected to the inner side of the slide rail. A slide rail directional screw is connected to the rear side of the blade. The slide rail is provided with an elongated guide groove extending front and back for the slide rail directional screw to slide. The blade contacts the locking spring piece, and the front end of the locking spring piece is provided with a stop block for the blade to abut against after it extends out.
2. The slide rail thrust skive according to claim 1, wherein: The top of the abutment block is equipped with an anti-slip operation button.
3. The slide rail thrust skive according to claim 1, wherein: The slide rail is provided with a slot corresponding to the abutment block.
4. The sliding rail thrust skive of claim 1, wherein: The inner side of the slide rail is provided with a groove for the blade to slide and connect.
5. The sliding rail thrust skive of claim 1, wherein: The contact area between the abutment block and the blade is provided with several protrusions.
6. The sliding rail thrust skive of claim 1, wherein: The outer side of the handle is provided with several anti-slip protrusions.
7. The sliding rail thrust skive of claim 1, wherein: The rear end of the handle is fitted with a tail finger ring screw.
8. The slide rail thrust skive according to claim 7, wherein: The front side of the tail finger ring buckle is provided with a buckle, and the rear end of the knife handle is provided with a groove corresponding to the buckle.
9. The sliding rail thrust skive of claim 1, wherein: The tool holder includes a left tool holder and a right tool holder, which are respectively installed to the slide rail by tool holder screws.
10. The slide rail thrust skive according to claim 1, wherein: A sheath is fitted on the front side of the handle.