Art knife with accidental injury prevention function

Abstract

The utility model relates to the field of stationery, in particular to an art knife with an accidental injury prevention function. According to the art knife with the accidental injury prevention function, the guide knife pouch can be retracted and shielded, the guide knife pouch is prevented from scratching people, and the use safety is improved. An art knife with an accidental injury prevention function comprises a knife rest, a mounting block, a guide knife sleeve and the like, the mounting block is clamped to the right side of the knife rest, and the guide knife sleeve is slidably connected to the left portion of the knife rest. A connecting frame moves forwards on a supporting frame, a fourth telescopic spring is extruded and contracted, so that a limiting block is not connected with a guide knife sleeve in a clamped mode any more, a third telescopic spring is restored, the guide knife sleeve is driven to move rightwards on a guide rod, the guide knife sleeve can be retracted and shielded, and the guide knife sleeve is prevented from scratching personnel; and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of stationery, in particular to a craft knife with an anti-misoperation function. Background Art

[0002] A craft knife is a multi-functional manual cutting tool, which is widely used in various occasions such as handicrafts, art creation, office and home. A craft knife usually consists of a knife handle and a replaceable blade, and has the characteristics of being light and easy to carry.

[0003] At the position near the tip of the existing craft knife, a guiding knife sleeve is usually arranged. The blade is guided through the guiding knife sleeve. Since the guiding knife sleeve is usually fixed on the knife holder and exposed on the surface, and the guiding knife sleeve is usually made of stainless steel or metal, it is easy to accidentally injure people when exposed on the surface, and the use safety is relatively low and it is rather inconvenient.

[0004] Therefore, it is necessary to design a craft knife with an anti-misoperation function that can retract and block the guiding knife sleeve, avoid scratching people with the guiding knife sleeve, and improve the use safety. Content of the Utility Model

[0005] In order to overcome the disadvantages that the guiding knife sleeve of the existing craft knife is usually fixed on the knife holder and exposed on the surface, and the guiding knife sleeve is usually made of stainless steel or metal, it is easy to accidentally injure people when exposed on the surface, and the use safety is relatively low and it is rather inconvenient, the utility model provides a craft knife with an anti-misoperation function that can retract and block the guiding knife sleeve, avoid scratching people with the guiding knife sleeve, and improve the use safety.

[0006] A craft knife with an anti-misoperation function includes a knife holder, a mounting block, a guiding knife sleeve, a sliding frame, a blade, a first telescopic spring, a guiding rod, a third telescopic spring and a limiting component. The mounting block is clamped to the right side of the knife holder. The guiding knife sleeve is slidably connected to the left part of the knife holder. The sliding frame is slidably and detachably connected to the knife holder. The blade is clamped to the left part of the sliding frame. The blade contacts with the guiding knife sleeve. A first telescopic spring is connected between the sliding frame and the mounting block. The guiding rod is connected to the upper left part of the knife holder. The guiding knife sleeve is slidably connected to the guiding rod. A third telescopic spring is connected between the guiding knife sleeve and the guiding rod. The limiting component is arranged on the knife holder.

[0007] Furthermore, anti-slip lines are arranged on the knife holder.

[0008] Furthermore, a card slot is opened in the right part of the blade.

[0009] Further explanation, the limiting component includes a support frame, a connecting frame, a limiting block and a fourth telescopic spring. There are two upper and lower support frames connected to the front side of the left part of the tool rest. A connecting frame is slidably connected between the support frames. Limiting blocks are connected to the rear sides of the upper and lower parts of the connecting frame. The limiting blocks are all clamped with the guiding tool sleeve. Fourth telescopic springs are connected between the support frames and the connecting frame.

[0010] Further explanation, the limiting blocks are all wedge-shaped.

[0011] Further explanation, it also includes a limiting frame, a second telescopic spring and a docking frame. A limiting frame is slidably connected to the right part of the sliding frame. A second telescopic spring is connected between the limiting frame and the sliding frame. A docking frame is connected to the front side of the lower part of the tool rest. The limiting frame is in clamping fit with the docking frame.

[0012] The beneficial effects of the present utility model are as follows: 1. By moving the connecting frame forward on the support frame in the present utility model, the fourth telescopic spring is compressed and contracted, so that the limiting block is no longer clamped with the guiding tool sleeve, and the third telescopic spring is restored, driving the guiding tool sleeve to move to the right on the guiding rod, achieving the effect of being able to retract and shield the guiding tool sleeve, avoiding scratching people with the guiding tool sleeve, and improving the safety of use.

[0013] 2. By moving the limiting frame upward in the present utility model, the second telescopic spring is compressed and contracted, and the first telescopic spring is restored, driving the sliding frame and the blade to move to the right, so that the blade is retracted, achieving the effect of being able to quickly retract the blade, quickly hide the sharp blade tip, and reducing the risk of cuts caused by accidental touch. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility knife of the present utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the cross-section of the limiting mechanism of the present utility model.

[0017] Figure 4 It is a first cross-sectional three-dimensional structural schematic diagram of the rebound mechanism of the present utility model.

[0018] Figure 5 It is a second three-dimensional structural schematic diagram of the rebound mechanism of the present utility model.

[0019] Marks in the drawings: 1: tool rest, 2: mounting block, 3: guiding tool sleeve, 4: sliding frame, 5: blade, 6: first telescopic spring, 7: limiting frame, 8: second telescopic spring, 9: docking frame, 10: guiding rod, 11: third telescopic spring, 12: support frame, 13: connecting frame, 14: limiting block, 15: fourth telescopic spring. Specific embodiments

[0020] The present utility model will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but do not limit the present utility model.

[0021] A utility knife with an anti-misoperation function, as Figure 1 、 Figure 2 and Figure 4 shown, includes a knife holder 1, a mounting block 2, a guiding knife sleeve 3, a sliding frame 4, a blade 5, a first telescopic spring 6, a guiding rod 10, a third telescopic spring 11 and a limiting component. The knife holder 1 is provided with anti-slip lines for easy anti-slip. The mounting block 2 is clamped on the right side of the knife holder 1. The left part of the knife holder 1 is slidably connected with the guiding knife sleeve 3. The sliding frame 4 is slidably and detachably connected to the knife holder 1. The left part of the sliding frame 4 is clamped with the blade 5. A clamping groove is opened on the right part of the blade 5 for easy clamping. The blade 5 contacts the guiding knife sleeve 3. A first telescopic spring 6 is connected between the sliding frame 4 and the mounting block 2. The upper left part of the knife holder 1 is connected with the guiding rod 10. The guiding knife sleeve 3 is slidably connected with the guiding rod 10. A third telescopic spring 11 is connected between the guiding knife sleeve 3 and the guiding rod 10. A limiting component is provided on the knife holder 1.

[0022] As Figure 5 shown, the limiting component includes a support frame 12, a connecting frame 13, a limiting block 14 and a fourth telescopic spring 15. Two upper and lower support frames 12 are connected to the front side of the left part of the knife holder 1. The connecting frame 13 is slidably connected between the support frames 12. Limiting blocks 14 are connected to the rear sides of the upper and lower parts of the connecting frame 13. The limiting blocks 14 are all wedge-shaped. The limiting blocks 14 are all clamped with the guiding knife sleeve 3. A fourth telescopic spring 15 is connected between the support frames 12 and the connecting frame 13.

[0023] As Figure 1 and Figure 3 shown, it further includes a limiting frame 7, a second telescopic spring 8 and a docking frame 9. The right part of the sliding frame 4 is slidably connected with the limiting frame 7. A second telescopic spring 8 is connected between the limiting frame 7 and the sliding frame 4. The docking frame 9 is connected to the front side of the lower part of the knife holder 1. The limiting frame 7 is in clamping fit with the docking frame 9.

[0024] At this time, the third telescopic spring 11 is in a stretched state. When using this device, first hold the tool rest 1, then move the limiting frame 7 upward. The second telescopic spring 8 is squeezed and contracted. Then move the sliding frame 4 to the left, driving the blade 5 to move to the left. The first telescopic spring 6 is stretched. After moving to a certain position, release the limiting frame 7. The second telescopic spring 8 resumes its original state, driving the limiting frame 7 to move downward, so that the limiting frame 7 is clamped with the docking frame 9. Then use this device to cut an item. When this device is not needed, the limiting frame 7 can be moved upward. The second telescopic spring 8 is squeezed and contracted. The first telescopic spring 6 resumes its original state, driving the sliding frame 4 and the blade 5 to move to the right, so that the blade 5 is retracted. Then release the limiting frame 7. The second telescopic spring 8 resumes its original state, driving the limiting frame 7 to move downward, so that the limiting frame 7 is clamped with the docking frame 9, thereby enabling the blade 5 to be quickly retracted and the sharp blade tip to be quickly hidden, reducing the risk of cuts caused by accidental contact. Then move the connecting frame 13 forward on the support frame 12. The fourth telescopic spring 15 is squeezed and contracted, so that the limiting block 14 is no longer clamped with the guiding tool sleeve 3. The third telescopic spring 11 resumes its original state, driving the guiding tool sleeve 3 to move to the right on the guiding rod 10. Then release the connecting frame 13. The fourth telescopic spring 15 resumes its original state, driving the connecting frame 13 and the limiting block 14 to move back to their original positions, so that the guiding tool sleeve 3 is located inside the tool rest 1, thereby enabling the guiding tool sleeve 3 to be retracted and shielded to prevent the guiding tool sleeve 3 from scratching people and improving the safety of use.

[0025] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A utility knife with an anti-accidental injury function, characterized by: The invention comprises a tool holder (1), a mounting block (2), a guide knife sleeve (3), a sliding frame (4), a blade (5), a first telescopic spring (6), a guide rod (10), a third telescopic spring (11) and a limiting component. The right side of the tool holder (1) is clamped with the mounting block (2), the left side of the tool holder (1) is slidably connected with the guide knife sleeve (3), the upper side of the tool holder (1) is slidably connected with the sliding frame (4), the left side of the sliding frame (4) is clamped with the blade (5), the blade (5) is in contact with the guide knife sleeve (3), the first telescopic spring (6) is connected between the sliding frame (4) and the mounting block (2), the upper left side of the tool holder (1) is connected with the guide rod (10), the guide knife sleeve (3) is slidably connected with the guide rod (10), the third telescopic spring (11) is connected between the guide knife sleeve (3) and the guide rod (10), and the tool holder (1) is provided with a limiting component.

2. The utility knife with the function of preventing accidental injury according to claim 1 is characterized in that: The knife holder (1) is provided with anti-skid patterns.

3. The utility knife with the function of preventing accidental injury according to claim 2 is characterized in that: The right part of the blade (5) is provided with a slot.

4. The utility knife with the function of preventing accidental injury according to claim 3 is characterized in that: The limiting component comprises a supporting frame (12), a connecting frame (13), a limiting block (14) and a fourth telescopic spring (15); the left front side of the tool holder (1) is connected to two upper and lower supporting frames (12); a connecting frame (13) is slidably connected between the supporting frames (12); the upper and lower rear sides of the connecting frame (13) are both connected to limiting blocks (14); the limiting blocks (14) are both clamped with the guide knife sleeve (3); and the fourth telescopic spring (15) is connected between the supporting frame (12) and the connecting frame (13).

5. The utility knife with the function of preventing accidental injury according to claim 4 is characterized in that: The limiting blocks (14) are all wedge-shaped.

6. The utility knife with the function of preventing accidental injury according to claim 5 is characterized in that: The tool holder (1) further comprises a limiting frame (7), a second telescopic spring (8) and a docking frame (9); the right part of the sliding frame (4) is slidably connected to the limiting frame (7); a second telescopic spring (8) is connected between the limiting frame (7) and the sliding frame (4); the lower front side of the tool holder (1) is connected to the docking frame (9); the limiting frame (7) and the docking frame (9) are snap-fitted.

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