Sheath type art knife

Abstract

The utility model discloses a sheath type art knife, which comprises a shell component, a sheath component, a knife blade component, a knife blade component and a knife blade component, wherein a mounting opening is formed at one end of the shell component; one end of the cutter assembly is arranged in the shell assembly, the other end of the cutter assembly penetrates through the mounting opening and is arranged on the outer side of the shell assembly, and the other end of the cutter assembly is provided with a cutting part; the protective sleeve is movably arranged at the mounting opening, and the protective sleeve is at least used for surrounding the cutting part; and the driving assembly is used for controlling the movement of the protective sleeve. Through the application of the utility knife with the adjustable sheath, when the utility knife is in a non-use state such as carrying, the blade of the utility knife is shielded in a surrounding manner by moving the sheath, so that a user is prevented from being scratched by the exposed blade; the cutter is simple in structure, the stability of the blade part is high when the cutter is used, the blade is convenient to replace, and meanwhile a certain number of spare blades can be contained through the structure of the cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter tools, in particular to a sheath-type utility knife. Background Art

[0002] At present, in order to facilitate operators to manually cut some harder objects, fixed utility knives are often used. Such fixed utility knives generally have the blade directly fixed on the handle. This means that when the utility knife is not in use, for example, when the operator carries it with him or switches tools, there is a risk of being scratched by the exposed blade.

[0003] In the prior art, it is generally considered to cover the sharp part of the blade by putting a sheath structure such as a sheath on the blade of the utility knife; however, this also makes it difficult to cover and remove the cover of the blade with one hand, and often requires two hands to hold the handle and the sheath respectively; on the other hand, the installation stability of the existing sheath is poor and it is easy to fall off, making it difficult to achieve a stable shielding and protection effect. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a sheath-type utility knife, comprising:

[0005] A housing assembly, wherein one end of the housing assembly is formed with a mounting opening;

[0006] A knife assembly, one end of which is disposed in the housing assembly, the other end of which passes through the mounting opening and is disposed outside the housing assembly, and the other end of which has a cutting portion;

[0007] A protective cover, the protective cover is movably disposed at the installation opening, and the protective cover is at least used to surround the cutting portion;

[0008] A driving assembly is used to control the movement of the protective sleeve.

[0009] In another preferred embodiment, the cutting portion is extended along the moving direction of the protective sleeve.

[0010] In another preferred embodiment, the protective cover comprises at least a first part, a second part and a third part which are connected in sequence, the first part and the third part are respectively arranged on both sides of the other end of the knife assembly, and the second part is arranged opposite to the cutting part.

[0011] In another preferred embodiment, the knife assembly includes: a positioning frame and a blade, the positioning frame is fixedly disposed in the housing assembly, one end of the blade is clamped on the positioning frame, and the cutting portion is formed on the blade.

[0012] In another preferred embodiment, the housing assembly comprises: a first housing and a second housing, wherein the first housing and the second housing are detachably connected.

[0013] In another preferred embodiment, a storage space is formed on the first shell or the second shell, and the storage space is used to store at least one blade.

[0014] In another preferred embodiment, an elastic body is disposed on the second shell or the first shell, and the elastic body abuts against the blade.

[0015] In another preferred embodiment, the housing assembly further includes: a locking device, and the locking device is used to lock or unlock the first housing and the second housing.

[0016] In another preferred embodiment, the driving assembly includes: a button and an extension piece, an adjustment opening is opened on the shell assembly, one end of the button can be movably passed through the adjustment opening and connected to one end of the extension piece, and the other end of the extension piece is connected to the protective cover.

[0017] In another preferred embodiment, a positioning protrusion is formed on one end of the extension piece, and at least two positioning recesses are sequentially arranged inside the shell assembly along the extension direction of the protective sleeve, and the positioning protrusion can selectively abut against any of the positioning recesses.

[0018] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art:

[0019] Through the application of the utility model, a utility knife with an adjustable sheath is provided, so that when the utility knife is not in use, the blade of the utility knife can be surrounded and shielded by moving the sheath, thereby preventing the user from being scratched by the exposed blade; the utility knife has a simple structure, and the blade part is highly stable when in use, and the blade is easy to replace, and a certain number of spare blades can be accommodated through its own structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of a sheath-type utility knife of the utility model;

[0021] Figure 2 It is a schematic diagram of the back side of a sheath-type utility knife of the utility model;

[0022] Figure 3 This is a schematic diagram of a sheath-type utility knife of the utility model in a non-use state;

[0023] Figure 4It is a first exploded schematic diagram of a sheath-type utility knife of the utility model;

[0024] Figure 5 It is a second exploded schematic diagram of a sheath-type utility knife of the utility model;

[0025] Figure 6 It is a first partial schematic diagram of a sheath-type utility knife of the utility model;

[0026] Figure 7 This is a second partial schematic diagram of a sheath-type utility knife of the utility model.

[0027] In the attached figure:

[0028] 1. Shell assembly; 2. Mounting port; 3. Knife assembly; 4. Cutting part; 5. Protective cover; 6. Drive assembly; 7. First part; 8. Second part; 9. Third part; 10. Positioning frame; 11. Blade; 12. First shell; 13. Second shell; 14. Storage space; 15. Elastomer; 16. Locking device; 17. Fastener; 18. Operating member; 19. Pull ring; 20. Button; 21. Extension member; 22. Adjustment port; 23. Positioning protrusion; 24. Positioning recess; 25. Hanging hole; 26. Connecting part. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0030] like Figures 1 to 7 As shown, a preferred embodiment of a sheath-type utility knife is shown, comprising: a housing assembly 1, one end of which is formed with a mounting opening 2; a knife assembly 3, one end of which is disposed in the housing assembly 1, the other end of which passes through the mounting opening 2 and is disposed outside the housing assembly 1, and the other end of which has a cutting portion 4; a protective cover 5, which is movably disposed at the mounting opening 2, and is at least used to surround the cutting portion 4; and a driving assembly 6, which is used to control the movement of the protective cover 5. Further, through the movement of the protective cover 5, the cutting portion 4 of the knife assembly 3 can be selectively surrounded and shielded so as to facilitate safe carrying, or the cutting portion 4 of the knife assembly 3 can be at least partially exposed so as to facilitate the contact between the cutting portion 4 and the object to be cut.

[0031] Further, as a preferred embodiment, the cutting portion 4 is extended along the moving direction of the protective cover 5. Further, the moving direction is preferably the extending direction of the cutting portion 4 and the length direction of the corresponding blade 11.

[0032] Further, as a preferred embodiment, the outer contour of the lower part of the protective cover 5 matches the inner contour of the lower edge of the installation opening 2. Further, the installation opening 2 provides a movement guide function for the movement of the protective cover 5.

[0033] Further, as a preferred embodiment, the protective cover 5 includes at least a first part 7, a second part 8 and a third part 9 which are connected in sequence, the first part 7 and the third part 9 are respectively arranged on both sides of the other end of the knife assembly 3, and the second part 8 is arranged opposite to the cutting part 4.

[0034] Further, as a preferred embodiment, the common cross-section of the first portion 7 , the second portion 8 and the third portion 9 is U-shaped or V-shaped or other shapes that can at least surround the outside of the cutting portion 4 .

[0035] Further, as a preferred embodiment, the knife assembly 3 includes: a positioning frame 10 and a blade 11, the positioning frame 10 is fixedly arranged in the housing assembly 1, one end of the blade 11 is clamped on the positioning frame 10, and the cutting portion 4 is formed on the blade 11. Further, the positioning frame 10 is fixedly installed in the housing assembly 1, and the positioning frame 10 is at least used to limit the position of the blade 11, so that the blade 11 is in a fixed position at the installation opening 2 after installation.

[0036] Furthermore, as a preferred embodiment, at least two clamping members are sequentially arranged on the upper edge of the positioning frame 10 along the length direction, and at least two notches are sequentially arranged on the upper edge of the blade 11 along the length direction, and each clamping member matches a notch, thereby realizing corresponding locking between the positioning frame 10 and the blade 11.

[0037] Furthermore, as a preferred embodiment, the positioning frame 10 or the inner wall of the housing assembly 1 adjacent thereto is formed with at least one positioning edge at the lower edge of the blade 11 to limit the downward movement of the blade 11 .

[0038] Further, as a preferred embodiment, the housing assembly 1 includes: a first housing 12 and a second housing 13, and the first housing 12 and the second housing 13 are detachably connected. Further, the above separation is that the first housing 12 can move freely relative to the second housing 13, preferably at least the first housing 12 can rotate relative to the second housing 13 so that the internal space of the housing assembly 1 is opened.

[0039] Further, as a preferred embodiment, one end of the first shell 12 and one end of the second shell 13 are joined to form the above-mentioned installation opening 2 .

[0040] Further, as a preferred embodiment, the other end of the first shell 12 and the other end of the second shell 13 are hinged to each other through a rotating shaft structure.

[0041] Further, as a preferred embodiment, a storage space 14 is formed on the first housing 12 or the second housing 13, and the storage space 14 is used to store at least one blade 11. Further, after the first housing 12 and the second housing 13 are separated, the storage space 14 is also exposed accordingly, so that the operator can take and put the blade 11 at will; preferably, a plurality of blades 11 are stacked in the storage space.

[0042] Further, as a preferred embodiment, an elastic body 15 is provided on the second shell 13 or the first shell 12, and the elastic body 15 is against the blade 11. Further, when the storage space 14 is provided on the first shell 12, the elastic body 15 is provided on the second shell 13, one end of the elastic body 15 is fixedly connected to the inner side of the second shell 13, and the other end of the elastic body 15 can be elastically deformed to be against the side of the blade 11, so as to ensure that when the operator opens the first shell 12 and the second shell 13, the blade 11 inside thereof will not fall due to the opening of one side of the storage space 14, and the elastic body 15 at least applies a certain force along the thickness direction of the blade 11, so that it can still be kept in the storage space 14 when the first shell 12 and the second shell 13 are not fully opened.

[0043] Further, as a preferred embodiment, the elastic body 15 is preferably a spring arranged with the thickness direction of the blade 11 as the axial direction.

[0044] Further, as a preferred embodiment, the housing assembly 1 further includes: a locking device 16, which is used to lock or unlock the first housing 12 and the second housing 13. Further, the operator can relatively lock or unlock the first housing 12 and the second housing 13 by operating the locking device 16; when locked, the first housing 12 and the second housing 13 are fixed as an integral structure; when unlocked, the first housing 12 is allowed to move relative to the second housing 13.

[0045] Further, as a preferred embodiment, the locking device 16 includes: a fastener 17 and an operating member 18, one end of the fastener 17 is mounted on the first housing 12 or the second housing 13, a coupling component 26 is provided on the second housing 13 or the first housing 12, and the operating member 18 is used to drive the fastener 17 to lock or unlock with the coupling component 26. Further, the operating member 18 is at least partially exposed to the outside of the housing assembly 1 for the convenience of the operator to operate, and the operator can drive the movement of the fastener 17 through the operating member 18, so that the fastener 17 and the coupling component 26 are locked or unlocked.

[0046] Further, as a preferred embodiment, the fastener 17 is preferably a column head with threads, and the engaging component 26 is preferably a sleeve with internal threads, and the column head can be screwed into the sleeve to be locked.

[0047] Furthermore, as a preferred embodiment, a pull ring 19 is provided on the operating member 18, and the pull ring 19 is rotatably connected to the operating member 18. When the fastener 17 needs to be driven, the pull ring 19 can be flipped open to extend outward to a sufficient area for the operator to operate by hand; when not in use, the pull ring 19 can be flipped inward and fit on the operating member 18 for storage.

[0048] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0049] The utility model also has the following implementation methods based on the above:

[0050] In a further embodiment of the present invention, the housing assembly 1 preferably has a front housing and a rear housing along the length direction, and the front housing is bent downward relative to the rear housing.

[0051] In a further embodiment of the utility model, the driving assembly 6 includes: a button 20 and an extension member 21, an adjustment port 22 is provided on the housing assembly 1, one end of the button 20 movably passes through the adjustment port 22 and is connected to one end of the extension member 21, and the other end of the extension member 21 is connected to the protective cover 5. Further, the operator can drive the movement of the protective cover 5 through the extension member 21 by pushing the button 20.

[0052] In a further embodiment of the utility model, the button 20 is arranged in a T-shaped structure, and the button 20 has a large contour end and a small contour end. The large contour end is arranged on the outside of the adjustment port 22, and the small contour end passes through the adjustment port 22 and is connected to the extension piece 21.

[0053] In a further embodiment of the present invention, the extension piece 21 and the protective cover 5 are arranged in an integrated structure.

[0054] In a further embodiment of the utility model, a positioning protrusion 23 is formed on one end of the extension member 21, and at least two positioning recesses 24 are sequentially arranged inside the housing assembly 1 along the extension direction of the protective sleeve 5, and the positioning protrusion 23 can selectively abut against any positioning recess 24. Further, when the protective sleeve 5 moves to a certain position, the positioning protrusion 23 moves to the positioning recess 24 accordingly to achieve a locking abutment, thereby positioning the protective sleeve 5 at the position.

[0055] In a further embodiment of the utility model, the extension piece 21 has at least a certain elasticity, and the elasticity makes the positioning protrusion 23 have a tendency to move toward the positioning recess 24; specifically, when the operator needs to adjust the position of the protective cover 5, the button 20 can be used to apply pressure from the outside to the inside, so that the extension piece 21 is elastically deformed and thus drives the positioning protrusion 23 away from the corresponding positioning recess 24 and allows it to move in the length direction of the blade 11; when it moves to the position of the next positioning recess 24, the above-mentioned application of pressure from the outside to the inside is removed, and under the elastic action of the extension piece 21 itself, the positioning protrusion 23 naturally resets outward and enters the next recess.

[0056] In a further embodiment of the utility model, the number of the positioning recesses 24 is preferably three, and the three positioning recesses 24 correspond to three different positions of the protective cover 5, so that the protective cover 5 is allowed to be limited to a position where the cutting part 4 is fully exposed, a position where the cutting part 4 is partially exposed, and a position where the cutting part 4 is completely blocked.

[0057] In a further embodiment of the utility model, a hanging hole 25 is provided at the other end of the housing assembly 1. Further, the hanging hole 25 facilitates the operator to hang the sheath-type utility knife on a corresponding hook or other position.

[0058] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheathed utility knife, characterized in that: include: A housing assembly, wherein one end of the housing assembly is formed with a mounting opening; A knife assembly, one end of which is disposed in the housing assembly, the other end of which passes through the mounting opening and is disposed outside the housing assembly, and the other end of which has a cutting portion; A protective cover, the protective cover is movably arranged at the installation opening, and the protective cover is at least used to surround the cutting part; A driving assembly is used to control the movement of the protective sleeve.

2. The sheathed utility knife according to claim 1, characterized in that: The cutting portion is extended along the moving direction of the protective sleeve.

3. The sheathed utility knife according to claim 1, characterized in that: The protective cover at least comprises a first part, a second part and a third part which are connected in sequence, the first part and the third part are respectively arranged on both sides of the other end of the knife assembly, and the second part is arranged opposite to the cutting part.

4. The sheathed utility knife according to claim 1, characterized in that: The knife assembly comprises: a positioning frame and a blade. The positioning frame is fixedly arranged in the housing assembly. One end of the blade is clamped on the positioning frame. The cutting part is formed on the blade.

5. The sheathed utility knife according to claim 1, characterized in that: The housing assembly includes a first housing and a second housing, wherein the first housing and the second housing are detachably connected.

6. The sheathed utility knife according to claim 5, characterized in that: A storage space is formed on the first shell or the second shell, and the storage space is used to store at least one blade.

7. The sheathed utility knife according to claim 6, characterized in that: An elastic body is arranged on the second shell or the first shell, and the elastic body abuts against the blade.

8. The sheathed utility knife according to claim 5, characterized in that: The housing assembly further comprises: A locking device is used to lock or unlock the first shell and the second shell.

9. The sheathed utility knife according to claim 1, characterized in that: The drive assembly comprises: A button and an extension piece, wherein the shell assembly is provided with an adjustment opening, one end of the button can movably pass through the adjustment opening and is connected to one end of the extension piece, and the other end of the extension piece is connected to the protective cover.

10. The sheathed utility knife according to claim 9, characterized in that: A positioning protrusion is formed on one end of the extension piece, and at least two positioning recesses are sequentially arranged inside the shell component along the extension direction of the protective sleeve. The positioning protrusion can be selectively abutted against any of the positioning recesses.

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