Art knife with mistaken pushing prevention function

Abstract

The utility model relates to the technical field of art designing tools, in particular to an art designing knife with a mistaken pushing prevention function. The utility model provides the art knife with the mistaken pushing prevention function, which can be directly locked after the blade is withdrawn, prevents the blade from sliding out accidentally, improves the use safety and is convenient to use. An art knife with a mistaken pushing prevention function comprises a sleeve shell, a blade and the like, the blade is sleeved with a guide frame, and sliding grooves are formed in the left portion and the right portion of the sleeve shell. The pressing plate moves forwards to drive the sliding block to move forwards, so that the blade is withdrawn, when the blade is completely withdrawn, the metal sheet is restored to drive the clamping block to move outwards to be clamped with the guide frame, meanwhile, the pressing plate is not pressed any more, and the pressing plate and the extrusion block move upwards to be reset, so that direct locking can be achieved after the blade is withdrawn; the blade is prevented from accidentally sliding out, the use safety is improved, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of art supplies technology, and in particular to an art knife with anti-accidental push function. Background Technology

[0002] As a common cutting tool, utility knives are widely used in many fields such as advertising production, handicrafts, packaging industry and daily life. With their sharp blades and flexible operation, they can meet a variety of cutting needs. However, traditional utility knives have some safety hazards that cannot be ignored during use, causing a lot of trouble for users.

[0003] For example, a safety utility knife for preventing accidental injury, as disclosed in CN213165477U, includes a cap, two sets of sheaths mounted on one side of the cap, a retaining plate mounted at the front between the two sets of sheaths, several retaining teeth arranged at the lower front and rear ends of the retaining plate, a tail plate mounted on one side of the sheath, a slider mounted at the front end of the retaining plate, a fixing protrusion mounted at the rear end of the slider, a blade mounted on the periphery of the fixing protrusion, a rear plate mounted at the rear end between the two sets of sheaths, and a protective shell arranged at the upper front and rear ends of the blade. This utility model can protect the blade by blocking it with the cap, preventing cuts caused by accidental blade detachment. However, since the cap in this utility model is directly engaged with the sheath by friction, if the utility knife is dropped, the cap is easy to detach from the sheath, and the blade is easy to accidentally slip out, resulting in poor protection. Furthermore, after retracting the blade, the cap needs to be engaged with the sheath, which is inconvenient for locking the blade after retraction, making it inconvenient to use.

[0004] Therefore, it is necessary to design a utility knife with anti-accidental push function that can lock directly after the blade is retracted to prevent the blade from accidentally slipping out, improve safety, and make it convenient to use. Utility Model Content

[0005] To overcome the shortcomings of existing technologies where the end cap is directly attached to the sheath via friction, which makes it easy for the end cap to detach from the sheath when the utility knife is dropped, allowing the blade to slip out accidentally, resulting in poor protection, and requiring the end cap to be reattached to the sheath after the blade is retracted, making locking the blade inconvenient and inconvenient to use, this utility model provides a utility knife with an anti-accidental push function that can be locked directly after the blade is retracted to prevent accidental slippage, improve safety, and enhance ease of use.

[0006] The technical solution is as follows: A utility knife with anti-accidental push function includes a shell, a guide frame, a blade, a retaining sleeve, a limiting post, and a locking component. The guide frame is connected to the inner side of the shell, and the blade is sleeved inside the guide frame. Sliding grooves are opened on both the left and right sides of the shell, and a snap-fit ​​groove is opened in the middle of the guide frame. The retaining sleeve is snapped into the front of the guide frame through the snap-fit ​​groove. A limiting post is sleeved on the upper front side of the blade. A locking component is provided between the shell and the limiting post, which can lock directly after the blade is retracted.

[0007] Furthermore, the front of the guide frame has two locking slots, one on the left and one on the right.

[0008] Furthermore, the guide frame has a U-shaped structure.

[0009] Furthermore, the locking assembly includes a pressure plate, a fixing block, a pressing block, a slider, a metal sheet, and a locking block. The slider is sleeved on the front of the housing via a sliding groove. The pressing block is slidably connected to the front of the slider. The pressure plate is connected to the front of the pressing block. The fixing block is connected to the lower side of the pressure plate. The metal sheet is connected to the front of the slider. Locking blocks are connected to the lower sides of both the left and right sides of the metal sheet. All locking blocks are engaged with the guide frame via locking grooves.

[0010] Furthermore, the upper side of the pressure plate is provided with anti-slip texture.

[0011] Furthermore, the metal sheet has a V-shaped structure.

[0012] The beneficial effects are as follows: 1. This utility model moves the pressure plate forward, which drives the slider forward, so that the blade can be retracted. When the blade is fully retracted, the metal sheet returns to its original position, which drives the locking block to move outward and engage with the guide frame. At the same time, the pressure plate is no longer pressed, and the pressure plate and the squeezing block move upward to reset. This achieves the effect of locking directly after the blade is retracted, preventing the blade from accidentally slipping out, improving safety and making it convenient to use.

[0013] 2. This utility model moves the slider forward, which in turn moves the blade forward, causing the blade to detach from the guide frame and the housing, respectively. The blade can then be removed from the limiting post for replacement, thus achieving the effect of convenient blade disassembly and quick blade replacement. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the snap-fit ​​groove and limiting post components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the casing and guide frame components of this utility model.

[0017] Figure 4 This is a schematic diagram of the planar structure of the card sleeve and guide frame components of this utility model.

[0018] The names and serial numbers of the components in the figure are as follows: 1_Shell, 2_Guide frame, 3_Blade, 4_Slide groove, 5_Cladle, 6_Pressure plate, 7_Fixing block, 8_Extrusion block, 9_Slider, 10_Metal sheet, 11_Card block, 12_Card slot, 13_Limiting post. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] A utility knife with anti-accidental push function, such as Figures 1-4 As shown, it includes a housing 1, a guide frame 2, a blade 3, a retaining sleeve 5, a limiting post 13, and a locking assembly. The guide frame 2 is connected to the inside of the housing 1. The guide frame 2 has a U-shaped structure for easy guidance. The front of the guide frame 2 has two locking slots on the left and right sides for easy locking. The blade 3 is sleeved inside the guide frame 2. The left and right sides of the housing 1 have sliding grooves 4. The middle of the guide frame 2 has a snap-fit ​​groove 12. The front of the guide frame 2 is snapped with the retaining sleeve 5 through the snap-fit ​​groove 12. The upper front side of the blade 3 is sleeved with the limiting post 13. A locking assembly is provided between the housing 1 and the limiting post 13.

[0021] like Figure 1 and Figure 2 As shown, the locking assembly includes a pressure plate 6, a fixing block 7, a pressing block 8, a slider 9, a metal sheet 10, and a locking block 11. The slider 9 is sleeved on the front of the housing 1 through a sliding groove 4. The pressing block 8 is slidably connected to the front of the slider 9. The pressure plate 6 is connected to the front of the pressing block 8. The upper side of the pressure plate 6 is provided with anti-slip texture to facilitate anti-slip. The fixing block 7 is connected to the lower side of the pressure plate 6. The metal sheet 10 is connected to the front of the slider 9. The metal sheet 10 has a V-shaped structure. The locking blocks 11 are connected to the lower sides of both the left and right sides of the metal sheet 10. The locking blocks 11 are engaged with the guide frame 2 through locking grooves.

[0022] When using this utility model, first hold the casing 1 and carry it to the utility knife usage area. Then press down the pressure plate 6, which moves the fixing block 7 and the squeezing block 8 downwards, so that the squeezing block 8 contacts the metal sheet 10, causing the metal sheet 10 to deform and retract inwards, which moves the locking block 11 inwards, causing the locking block 11 to disengage from the locking groove on the guide frame 2. Then push the pressure plate 6, which moves the slider 9 backwards along the slide groove 4, and moves the blade 3 backwards along the guide frame 2 for use. When it is necessary to retract the blade 3, the pressure plate 6 can be moved forward, which moves the slider 9 forwards, causing the blade 3 to retract. When the blade 3 is fully retracted, the metal sheet 10 returns to its original position, which moves the locking block 11 outwards and engages with the guide frame 2. At the same time, the pressure plate 6 is no longer pressed, and the pressure plate 6 and the squeezing block 8 move upwards to reset. This allows for direct locking after the blade 3 is retracted, preventing the blade 3 from accidentally slipping out, improving safety and ease of use.

[0023] When the blade 3 needs to be replaced, the sleeve 5 can be moved forward to remove it, and then the pressing plate 6 can be pressed to move the pressing block 8 downward, causing the metal sheet 10 to deform and retract inward, which in turn moves the locking block 11 inward, causing the locking block 11 to disengage from the locking groove on the guide frame 2. Then the slider 9 can be moved forward, causing the blade 3 to move forward, so that the blade 3 and the slider 9 disengage from the guide frame 2 and the housing 1 respectively. Then the blade 3 can be removed from the limiting post 13 for replacement, which makes it easy to disassemble the blade 3 and facilitates quick replacement of the blade 3.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A utility knife with anti-accidental push function, characterized in that, It includes a housing (1), a guide frame (2), a blade (3), a retaining sleeve (5), a limiting post (13), and a locking assembly. The guide frame (2) is connected to the inside of the housing (1), and the blade (3) is sleeved inside the guide frame (2). The housing (1) has sliding grooves (4) on both the left and right sides. The guide frame (2) has a snap-fit ​​groove (12) in the middle. The front of the guide frame (2) is snapped with a retaining sleeve (5) through the snap-fit ​​groove (12). The upper front of the blade (3) is sleeved with a limiting post (13). A locking assembly is provided between the housing (1) and the limiting post (13) to lock the blade (3) directly after it is retracted.

2. A utility knife with anti-accidental push function according to claim 1, characterized in that, The guide frame (2) has two locking slots on the left and right sides at the front.

3. A utility knife with anti-accidental push function according to claim 1, characterized in that, The guide frame (2) has a U-shaped structure.

4. A utility knife with anti-accidental push function according to claim 1, characterized in that, The locking assembly includes a pressure plate (6), a fixing block (7), a pressing block (8), a slider (9), a metal sheet (10), and a locking block (11). The front of the housing (1) is fitted with a slider (9) through a sliding groove (4). The front side of the slider (9) is slidably connected to the pressing block (8). The front side of the pressing block (8) is connected to the pressure plate (6). The lower side of the pressure plate (6) is connected to the fixing block (7). The front of the slider (9) is connected to the metal sheet (10). The lower sides of both the left and right sides of the metal sheet (10) are connected to locking blocks (11). The locking blocks (11) are all locked to the guide frame (2) through locking grooves.

5. A utility knife with anti-accidental push function according to claim 4, characterized in that, The upper side of the pressure plate (6) is provided with anti-slip texture.

6. A utility knife with anti-accidental push function according to claim 4, characterized in that, The metal sheet (10) has a V-shaped structure.

Images