Art knife with protective sleeve

Abstract

The utility model relates to the technical field of art knives, and discloses an art knife with a protective sleeve, which comprises the protective sleeve, a placing groove is arranged at the bottom end of a notch, a plurality of circular grooves are arranged at the inner side end of a straight groove at intervals, the art knife is arranged in the notch, a limiting component is arranged at the top end of the art knife, and the protective sleeve is arranged in the groove. Extension or retraction of the art knife can be conveniently adjusted according to user requirements through the arrangement of the limiting assembly, when the art knife is unfolded, the art knife can conveniently rotate from the outer end of the limiting rod to the top end of the art knife through the arrangement of the rubber plug, use of the art knife is not hindered, and when the art knife retracts and is stored, the rubber plug is rotated, so that the art knife is folded. The rubber plug is forcibly plugged into the notch, the sliding groove and the containing groove, at the moment, caulking of the notch, the sliding groove and the containing groove is completed, and the blade is completely located at the bottom end of the mounting plate and in the containing groove, so that the blade is prevented from being directly exposed to the outer end and making contact with air to be rusted, and the situation that the sharpness and safety of follow-up use of the art knife are affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of utility knife technology, specifically to a utility knife with a protective sheath. Background Technology

[0002] Utility knives are a common tool in daily life and work. Most existing utility knives have the blade installed in a metal clip and use a push-pull structure to extend and retract the blade using a sliding component.

[0003] While existing utility knives have protective sheaths to prevent hand injuries, when the blade is stored inside the sheath, part of the blade surface is exposed. Prolonged contact with air can cause corrosion due to moisture, affecting the sharpness and safety of the utility knife in subsequent use. Therefore, a utility knife with a protective sheath is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a utility knife with a protective sleeve, which solves the problem that although existing utility knives have a protective sleeve to prevent injury to the user, when the blade is stored inside the sleeve, part of the blade surface is exposed to the outside. Prolonged contact with air can easily cause rust due to moisture, thus affecting the sharpness and safety of the utility knife in subsequent use.

[0005] This utility model provides the following technical solution: a utility knife with a protective sleeve, including a protective sleeve, a groove is opened on the side end of the protective sleeve, an L-shaped card plate is fixedly connected to the side end of the protective sleeve, a placement groove is opened at the bottom end of the groove, a straight groove is opened at the top end of the groove, a plurality of circular grooves are opened at intervals on the inner end of the straight groove, a utility knife is placed inside the groove, and a limiting component is provided at the top end of the utility knife.

[0006] As a preferred embodiment of the above technical solution, the utility knife includes a mounting plate, a blade is fixedly connected to the bottom end of the mounting plate, the blade is located in a placement groove, a mounting groove is opened at the top end of the mounting plate, and a slider is fixedly connected to the side end of the mounting plate.

[0007] As a preferred embodiment of the above technical solution, a sliding groove is provided on the side end of the slot, and the slider is slidably connected in the sliding groove.

[0008] As a preferred embodiment of the above technical solution, the limiting component includes a spring, which is fixedly connected to the bottom of the mounting groove, and a circular plate is fixedly connected to the top of the spring, and a circular rod is fixedly connected to the top of the circular plate.

[0009] As a preferred embodiment of the above technical solution, a top rod is fixedly connected to the top end of the round rod, and a finger groove plate is fixedly connected to the top end of the top rod.

[0010] As a preferred embodiment of the above technical solution, the round rod is adapted to each round groove, and the diameter of the top rod is smaller than the width of the straight groove.

[0011] As a preferred embodiment of the above technical solution, a limiting rod is fixedly connected to the side end of the protective sleeve, and a rubber plug is sleeved on the outer end of the limiting rod. The shape of the side end of the rubber plug is adapted to the shape of the combination of the placement groove, the slot and the slide.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features a limiting component that allows for easy adjustment of the utility knife's extension or retraction according to user needs. The limiting component works in conjunction with a straight groove and several circular grooves, facilitating adjustment of the extended length based on actual usage requirements. A rubber stopper allows the utility knife to rotate to its tip from the outer end of the limiting rod when extended, without obstructing its use. When retracted, the rubber stopper is forcefully inserted into the groove, sliding groove, and placement groove by rotating it, sealing these areas. The blade remains completely within the mounting plate and placement groove, preventing direct exposure to air and corrosion, thus ensuring the utility knife's sharpness and safety during subsequent use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a utility knife with a protective sheath.

[0015] Figure 2 This is a schematic diagram of the unfolded structure of a utility knife with a protective sheath;

[0016] Figure 3 This is a cross-sectional view of a utility knife with a protective sheath.

[0017] Figure 4 for Figure 3 A magnified schematic diagram of part A in the diagram.

[0018] In the diagram: 1. Protective sleeve; 101. Groove; 102. Slide groove; 103. Placement groove; 104. Straight groove; 105. Circular groove; 106. Clamping plate; 2. Limiting rod; 201. Rubber plug; 3. Utility knife; 301. Mounting plate; 302. Blade; 303. Slider; 304. Mounting groove; 4. Limiting assembly; 401. Spring; 402. Circular plate; 403. Circular rod; 404. Top rod; 405. Finger groove plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a utility knife with a protective sleeve, including a protective sleeve 1. A slot 101 is formed on the side end of the protective sleeve 1. An L-shaped retaining plate 106 is fixedly connected to the side end of the protective sleeve 1. The retaining plate 106 facilitates attaching the utility knife 3 to a pen holder or other mounting point for easy storage. A placement groove 103 is formed at the bottom end of the slot 101, and a straight groove 104 is formed at the top end of the slot 101. Several circular grooves 105 are spaced apart on the inner side end of the straight groove 104. The utility knife 3 is placed inside the slot 101, and a limiting component 4 is provided at the top end of the utility knife 3. A limiting rod 2 is fixedly connected to the side end of the protective sleeve 1. A rubber stopper 201 is fitted onto the outer end of the limiting rod 2. The shape of the side end of the rubber stopper 201 is adapted to the shape of the combination of the placement groove 103, the slot 101, and the sliding groove 102. The limiting component 4 is used to... The design allows for easy adjustment of the extension or retraction of the utility knife 3 according to user needs. The limiting component 4 works in conjunction with the straight groove 104 and several circular grooves 105, allowing users to adjust the extension length of the utility knife 3 according to actual usage requirements. With the rubber plug 201, when the utility knife 3 is extended, it can be rotated from the outer end of the limiting rod 2 to the top of the utility knife 3 without hindering its use. When the utility knife 3 is retracted, the rubber plug 201 is rotated and forcefully inserted into the groove 101, the sliding groove 102, and the placement groove 103, thus sealing the groove 101, the sliding groove 102, and the placement groove 103. The blade 302 is completely located at the bottom of the mounting plate 301 and in the placement groove 103, thus preventing the blade 302 from being directly exposed to the air and corroding, thereby avoiding affecting the sharpness and safety of the utility knife 3 in subsequent use.

[0021] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the utility knife 3 includes a mounting plate 301. A blade 302 is fixedly connected to the bottom end of the mounting plate 301. The blade 302 is located in the placement groove 103, which facilitates the storage of the blade 302, reduces the contact area between the blade 302 and the air, and prevents corrosion. A mounting groove 304 is provided at the top end of the mounting plate 301. A slider 303 is fixedly connected to the side end of the mounting plate 301. A sliding groove 102 is provided at the side end of the groove 101. The slider 303 is slidably connected in the sliding groove 102. When the mounting plate 301 moves back and forth in the groove 101, the slider 303 moves in the sliding groove 102, improving the stability of the utility knife 3.

[0022] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, the limiting component 4 includes a spring 401, which is fixedly connected to the bottom of the mounting groove 304. A circular plate 402 is fixedly connected to the top of the spring 401, a circular rod 403 is fixedly connected to the top of the circular plate 402, a top rod 404 is fixedly connected to the top of the circular rod 403, and a finger groove plate 405 is fixedly connected to the top of the top rod 404. The circular rod 403 is adapted to each circular groove 105. The diameter of the top rod 404 is smaller than the width of the straight groove 104. In practice, by pinching the finger groove plate 405 downwards, the top rod 404, the circular rod 403, and the circular plate 402 can be moved downwards. At this time, the circular plate 404... 02. The downward-moving pressure spring 401 retracts, and the round rod 403 leaves the round groove 105 and enters the mounting groove 304. At this time, the top rod 404 moves back and forth between the straight groove 104 and the round groove 105. Since the diameter of the top rod 404 is smaller than the width of the straight groove 104, pinching the finger groove plate 405 and moving the finger groove plate 405 can drive the utility knife 3 to move back and forth, making it easy for the user to unfold or store the utility knife 3. When the round rod 403 is used in conjunction with several round grooves 105, the round rod 403 can be limited to any one of the round grooves 105, making it easy for the user to adjust the length of the utility knife 3 according to the actual length requirements.

[0023] Working principle: According to Figure 2 As shown, by pinching the finger groove plate 405 downwards, the top rod 404, the round rod 403, and the round plate 402 can be moved downwards. At this time, the round plate 402 moves downwards, pressing the spring 401 to contract. The round rod 403 leaves the round groove 105 and enters the mounting groove 304. At this time, the top rod 404 moves back and forth between the straight groove 104 and the round groove 105. Since the diameter of the top rod 404 is smaller than the width of the straight groove 104, pinching the finger groove plate 405 and moving the finger groove plate 405 can drive the utility knife 3 into the slot 101. The slider 303 slides in the sliding groove 102, improving the stability of the utility knife 3's movement. At the same time, the blade 302 will be stored in the placement groove 103. After everything is ready, the round rod 403 is located at the bottom of the last round groove 105. At this time, after releasing the finger groove plate 405, the spring 401 pushes against the round plate 402, driving the round rod 403 upwards. Figure 1 This causes the round rod 403 to be confined within the last round groove 105, at which point the utility knife 3 is stored within the slot 101. By rotating the rubber stopper 201, the rubber stopper 201 is forcefully inserted into the slot 101, the sliding groove 102, and the placement groove 103, thus sealing the slot 101, the sliding groove 102, and the placement groove 103. The blade 302 is completely located at the bottom of the mounting plate 301 and within the placement groove 103, thereby preventing the blade 302 from being directly exposed to the outside and corroding due to contact with air, thus avoiding affecting the sharpness and safety of the utility knife 3 in subsequent use.

[0024] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A utility knife with a protective sheath, comprising a protective sheath (1), wherein a slot (101) is provided on the side end of the protective sheath (1), and an L-shaped retaining plate (106) is fixedly connected to the side end of the protective sheath (1), characterized in that: The bottom end of the slot (101) is provided with a placement slot (103), the top end of the slot (101) is provided with a straight groove (104), the inner end of the straight groove (104) is provided with a plurality of circular grooves (105) at intervals, a utility knife (3) is provided inside the slot (101), and the top end of the utility knife (3) is provided with a limiting component (4).

2. A utility knife with a protective sheath according to claim 1, characterized in that: The utility knife (3) includes a mounting plate (301), a blade (302) is fixedly connected to the bottom end of the mounting plate (301), the blade (302) is located in the placement groove (103), a mounting groove (304) is opened at the top end of the mounting plate (301), and a slider (303) is fixedly connected to the side end of the mounting plate (301).

3. A utility knife with a protective sheath according to claim 2, characterized in that: The side end of the slot (101) is provided with a sliding groove (102), and the slider (303) is slidably connected in the sliding groove (102).

4. A utility knife with a protective sheath according to claim 2, characterized in that: The limiting component (4) includes a spring (401), which is fixedly connected to the bottom of the mounting groove (304). A circular plate (402) is fixedly connected to the top of the spring (401), and a circular rod (403) is fixedly connected to the top of the circular plate (402).

5. A utility knife with a protective sheath according to claim 4, characterized in that: The top end of the round rod (403) is fixedly connected to a top rod (404), and the top end of the top rod (404) is fixedly connected to a finger groove plate (405).

6. A utility knife with a protective sheath according to claim 5, characterized in that: The round rod (403) is adapted to each round groove (105), and the diameter of the top rod (404) is smaller than the width of the straight groove (104).

7. A utility knife with a protective sheath according to claim 1, characterized in that: The protective sleeve (1) is fixedly connected to a limiting rod (2) at its side end. A rubber plug (201) is sleeved on the outer end of the limiting rod (2). The shape of the side end of the rubber plug (201) is adapted to the shape of the combination of the placement groove (103), the slot (101) and the slide (102).

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