Art knife with switch locking structure
By designing a utility knife with a switch-locking structure, a spring-driven fixing block and fixing rod are engaged in the slot, achieving double locking of the blade. This solves the safety hazard of the utility knife blade easily being pushed out, and improves the safety and stability of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUCHENG RUNJIA MEASURING TOOLS CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-10
AI Technical Summary
The blade of a utility knife can easily be pushed out, posing a safety hazard, especially to young children who may suffer cuts.
Design a utility knife with a switch-locking structure. The first and second locking components, under the action of springs, drive the fixing block and fixing rod to engage with the fixing groove and fixing hole, respectively, to achieve double locking of the blade and prevent accidental slippage.
It effectively prevents the blade from accidentally slipping out during use, improving safety and stability, and especially preventing accidental injury to young children.
Smart Images

Figure CN224102976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to art knife technical field especially relates to an art knife with switch locking structure. BACKGROUND
[0002] Art knife is a kind of common hand tool, mainly for cutting and cutting soft material, such as paper, plastic, film etc., also called cutter or wallpaper knife, is a kind of tool for cutting, cutting and carving.
[0003] In prior art, art knife plays an important role, daily paper cutting, handicraft, carving, opening box etc. all need to use art knife, greatly facilitates people's life. But because art knife blade is sharp, and easy to push out blade, if adult is placed improperly, small child plays as toy, because young children have no discrimination ability, will accidentally cut oneself when playing art knife, causes serious consequence
[0004] For this, aiming at the technical problem, the utility model provides an art knife with switch locking structure. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings in prior art, and provides an art knife with switch locking structure, pushes blade into the inside of handle body, loosens first pressing plate, under the action of first spring, drives moving block to move reset, moving block moves and drives fixed block to be clamped into the inside of fixed groove, carries out first step locking to blade, effectively avoids accidental sliding of blade in use process, and guarantees the safety of use.
[0006] To achieve the above object, the utility model provides the following technical scheme.
[0007] An art knife with switch locking structure, including handle body, the inside wall sliding connection of handle body has blade, the top right side of blade is fixedly connected with push block, the inside wall sliding connection of push block has moving block, the front end of moving block is provided with first locking assembly, the inside wall of push block top is provided with unlocking assembly, the bottom inside wall of handle body right end is provided with second locking assembly, the front and rear ends of handle body are fixedly connected with non-slip pad, the left end of handle body is fixedly connected with protective head.
[0008] Further, the first locking assembly includes fixed block fixedly connected to the front end of the moving block, the moving block and the inner wall of the push block are connected by a first spring, and the top end of the moving block is fixedly connected with an inclined block.
[0009] Further, one end of the first spring is connected with the moving block, and the other end of the first spring is connected with the inner wall of the push block.
[0010] Further, the inner wall of the front end of the handle body is provided with a plurality of fixing grooves corresponding to the fixing blocks.
[0011] Further, the unlocking assembly comprises a pressing plate slidingly connected to the inner wall of the top end of the pushing block, a first pressing plate is fixedly connected to the top end of the pressing plate, and limit blocks are fixedly connected to the outer wall of the bottom end of the pressing plate.
[0012] Further, the second locking assembly comprises a connecting plate slidingly connected to the inner wall of the bottom side of the right end of the handle body, a fixed rod is fixedly connected to the left side of the bottom end of the connecting plate, the connecting plate and the inner wall of the handle body are connected through a second spring, a sliding rod is fixedly connected to the bottom end of the connecting plate, and a second pressing plate is fixedly connected to the bottom end of the sliding rod.
[0013] Further, one end of the second spring is connected to the connecting plate, and the other end of the second spring is connected to the inner wall of the handle body.
[0014] Further, the fixed hole is formed in the right side of the top end of the blade, and the fixed rod corresponds to the fixed hole.
[0015] The utility model has the advantages of the following beneficial effects:
[0016] 1. In the utility model, the blade is pushed into the handle body, the first pressing plate is loosened, the moving block is driven to reset under the action of the first spring, the moving block is driven to reset under the action of the first spring, the fixed block is clamped into the fixed groove, the blade is locked in the first step, the accidental sliding of the blade in the use process is avoided, and the safety of use is ensured.
[0017] 2. In the utility model, the second pressing plate is loosened, the connecting plate is driven to reset under the action of the second spring, the connecting plate is driven to reset under the action of the second spring, the fixed rod is clamped into the fixed hole, the blade is locked in the second step, and the stability of the blade in the use process is further improved. ACCURATE DRAWING
[0018] Figure 1 A perspective view of the utility model of a design knife with switch locking structure is provided.
[0019] Figure 2 A structure schematic view of the blade in the utility model of a design knife with switch locking structure is provided.
[0020] Figure 3 A structure schematic view of the fixed block in the utility model of a design knife with switch locking structure is provided.
[0021] Figure 4 A structure schematic view of the sliding rod in the utility model of a design knife with switch locking structure is provided.
[0022] Legend:
[0023] 1, handle body; 2, blade; 3, push block; 4, moving block; 5, fixed block; 6, first spring; 7, inclined block; 8, lower pressing plate; 9, limiting block; 10, first pressing plate; 11, fixed groove; 12, sliding rod; 13, second pressing plate; 14, connecting plate; 15, second spring; 16, fixed rod; 17, protective head; 18, non-slip pad. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] With reference to Figures 1-3 The utility model provides an embodiment: a meiguandao with switch locking structure, including handle body 1, handle body 1 inner wall sliding connection has blade 2, and the right side fixed connection of blade 2 top end has push block 3, and push block 3 inner wall sliding connection has moving block 4, and moving block 4 front end fixed connection has fixed block 5, and moving block 4 and push block 3 inner wall are connected through first spring 6, and moving block 4 top end fixed connection has inclined block 7, and one end of first spring 6 is connected with moving block 4, and the other end of first spring 6 is connected with the inner wall of push block 3, and the inner wall of handle body 1 front end is provided with a plurality of fixed grooves 11, and fixed groove 11 corresponds with fixed block 5, and the inner wall sliding connection of push block 3 top end has lower pressing plate 8, and the top end fixed connection of lower pressing plate 8 has first pressing plate 10, and the bottom end outer wall both sides fixed connection of lower pressing plate 8 has limiting block 9, and the bottom end of lower pressing plate 8 corresponds with the top end of inclined block 7, and handle body 1 front and rear ends are fixedly connected with non-slip pad 18, and handle body 1 left end is fixedly connected with protective head 17;
[0026] Specifically, after pressing the first pressing plate 10, it will push the lower pressing plate 8, and then make the limiting block 9 move. The movement of the lower pressing plate 8 extrudes the inclined block 7, causing the inclined block 7 to move, and then pushing the moving block 4. The movement of the moving block 4 also drives the fixed block 5, so that it moves out of the fixed groove 11, thereby releasing the first step locking of the blade 2.
[0027] With reference to Figure 1 And Figure 4The inner wall of the bottom side of the handle body 1 is slidably connected with a connecting plate 14, the left bottom end of the connecting plate 14 is fixedly connected with a fixed rod 16, the connecting plate 14 and the inner wall of the handle body 1 are connected through a second spring 15, the bottom end of the connecting plate 14 is fixedly connected with a sliding rod 12, the bottom end of the sliding rod 12 is fixedly connected with a second pressing plate 13, one end of the second spring 15 is connected with the connecting plate 14, and the other end of the second spring 15 is connected with the inner wall of the handle body 1; a fixed hole is formed in the right top end of the blade 2, and the fixed rod 16 corresponds to the fixed hole;
[0028] Specifically, the second pressing plate 13 is pressed, the movement of the second pressing plate 13 drives the sliding rod 12 to move, the movement of the sliding rod 12 drives the connecting plate 14 to move, and then the connecting plate 14 pushes the fixed rod 16 to move out of the fixed hole, so that the second stage locking of the blade 2 is released. At this time, the pushing block 3 is pushed, and the movement of the pushing block 3 drives the blade 2 to move, so that the cutting operation can be performed.
[0029] Working principle: when it is needed to use, the first pressing plate 10 is pressed, the movement of the first pressing plate 10 drives the lower pressing plate 8 to move, the movement of the lower pressing plate 8 drives the limiting block 9 to move, the lower pressing plate 8 is extruded to move the inclined block 7, the movement of the inclined block 7 drives the moving block 4 to move, the movement of the moving block 4 drives the fixed block 5 to move, so that the fixed block 5 moves out of the inside of the fixed groove 11, and the first step locking of the blade 2 is released;
[0030] Then, the second pressing plate 13 is pressed, the movement of the second pressing plate 13 drives the sliding rod 12 to move, the movement of the sliding rod 12 drives the connecting plate 14 to move, the movement of the connecting plate 14 drives the fixed rod 16 to move, so that the fixed rod 16 moves out of the inside of the fixed hole, and the second step locking of the blade 2 is released. At this time, the pushing block 3 is pushed, the movement of the pushing block 3 drives the blade 2 to move, and the cutting operation can be performed;
[0031] When the blade 2 needs to be locked, the blade 2 is moved to the right side, and under the action of the first spring 6 and the second spring 15, the moving block 4 and the connecting plate 14 are reset, respectively, so that the fixed block 5 is clamped into the inside of the fixed groove 11, and the fixed rod 16 is clamped into the inside of the fixed hole, and the blade 2 can be locked, the blade 2 is prevented from being accidentally popped out, and the use safety is improved. The first locking assembly, the unlocking assembly and the second locking assembly are matched, the double locking of the blade 2 is realized, the use safety is improved, and the operation is simple and convenient, and people use conveniently.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. An art knife having a switch lock structure, characterized by: The utility model provides a cutting knife, including handle body (1), the inner wall sliding joint of handle body (1) has blade (2), the right side fixed connection of blade (2) top end has push block (3), the inner wall sliding joint of push block (3) has moving block (4), the front end of moving block (4) is provided with first locking assembly, the inner wall of push block (3) top end is provided with unlocking assembly, the inner wall of handle body (1) right end bottom side is provided with second locking assembly, handle body (1) front and rear ends fixed connection has antiskid pad (18), handle body (1) left end fixed connection has protection head (17).
2. The art knife with a switch locking structure according to claim 1, characterized in that: The first locking assembly includes a fixed block (5) fixedly connected to the front end of the moving block (4), the moving block (4) is connected to the inner wall of the push block (3) through a first spring (6), and the top end of the moving block (4) is fixedly connected with an inclined block (7).
3. The utility knife of claim 2, wherein: One end of the first spring (6) is connected to the moving block (4), and the other end of the first spring (6) is connected to the inner wall of the push block (3).
4. The utility knife of claim 2, wherein: A plurality of fixed grooves (11) are formed in the inner wall of the front end of the handle body (1), and the fixed grooves (11) correspond to the fixed block (5).
5. The utility knife of claim 1, wherein: The unlocking assembly includes a pressing plate (8) slidingly connected to the inner wall of the top end of the push block (3), the top end of the pressing plate (8) is fixedly connected with a first pressing plate (10), the bottom end of the pressing plate (8) is fixedly connected with a limiting block (9) on both sides of the outer wall, and the bottom end of the pressing plate (8) corresponds to the top end of the inclined block (7).
6. The utility knife of claim 1, wherein: The second locking assembly includes a connecting plate (14) slidingly connected to the inner wall of the bottom side of the right end of the handle body (1), the bottom left side of the connecting plate (14) is fixedly connected with a fixed rod (16), the connecting plate (14) is connected to the inner wall of the handle body (1) through a second spring (15), the bottom end of the connecting plate (14) is fixedly connected with a sliding rod (12), and the bottom end of the sliding rod (12) is fixedly connected with a second pressing plate (13).
7. The utility knife of claim 6, wherein: One end of the second spring (15) is connected to the connecting plate (14), and the other end of the second spring (15) is connected to the inner wall of the handle body (1).
8. The utility knife of claim 6, wherein: A fixed hole is formed in the right side of the top end of the blade (2), and the fixed rod (16) corresponds to the fixed hole.