Cutter with storable protective sleeve

Abstract

The cutter comprises a blade, a cutter handle and the protective sleeve, sliding grooves are formed in the two sides of the cutter handle, the protective sleeve is composed of two protective frames and a protective head, one ends of the protective frames are connected through the protective head, the other ends of the protective frames are inserted into the sliding grooves to achieve sliding connection between the protective sleeve and the cutter handle, and the protective head is provided with a cutter outlet. When the protective sleeve slides to the protection position, the protective sleeve surrounds the blade; when the protective sleeve slides to the storage position, the protective frame slides into the knife handle, and the blade extends out of the knife outlet. According to the cutter with the protective sleeve capable of being stored, the protective sleeve can slide into the cutter handle, operation is convenient and fast, and storage of the protective sleeve is achieved while the cutter is discharged.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, specifically to cutting tools with retractable protective sleeves. Background Technology

[0002] Commonly used knives are mainly of three types: telescopic, folding, and fixed. Telescopic knives are generally used by extending the blade stored in the handle. However, because the blade is telescopic and sliding, there is a gap or looseness in the connection between the handle and the blade when in use. When folding knives are used in the unfolded state, there is a risk that the blade may accidentally rotate back due to the rotating pair between the blade and the handle. Therefore, fixed knives are relatively safe and reliable.

[0003] Fixed knives usually require the use of a sheath or protective cover. However, since the sheath or protective cover is independent of the handle, the sheath or protective cover must be removed before using the knife, which is not convenient and the protective cover is easy to lose. Utility Model Content

[0004] Therefore, one objective of this utility model is to provide a knife with a retractable protective cover, which, when in use, slides the protective cover into the handle, exposing the blade while simultaneously retracting the protective cover.

[0005] This utility model provides a knife with a retractable protective sleeve, comprising:

[0006] blade;

[0007] A knife handle, the blade being connected to a blade holder at the end of the knife handle, and the knife handle having grooves on both sides that extend to the blade holder;

[0008] The protective sleeve consists of two protective frames and a protective head. One end of the two protective frames is connected through the protective head, and the other end is inserted into the sliding groove to achieve a sliding connection between the protective sleeve and the knife handle. The protective head is provided with a knife outlet.

[0009] When the protective cover slides to the protective position, it surrounds the blade; when the protective cover slides to the storage position, the protective frame slides into the handle to store the protective cover, and the blade extends from the blade outlet.

[0010] Furthermore, the handle is provided with a connecting cavity that connects the two slide grooves, and a connecting block is slidably disposed in the connecting cavity, the connecting block being connected to the two protective frames.

[0011] Furthermore, the connecting block is connected to the two protective frames by pins.

[0012] Furthermore, the knife handle is also provided with a push button and a push button groove for sliding the push button. The push button groove communicates with the connecting cavity, and the push button is connected to the connecting block in the connecting cavity.

[0013] Furthermore, the push button has two locking feet at its bottom, and each locking foot has an anti-detachment platform on its outer side. The connecting block has two connecting holes. The locking feet are inserted into the connecting holes, and the anti-detachment platforms extend out of the connecting holes, thereby connecting the push button and the connecting block and preventing detachment.

[0014] Furthermore, the bottom of the anti-detachment platform is provided with a guide slope.

[0015] Furthermore, a compression spring is provided between the push button and the connecting block, and positioning platforms are provided on both sides of the push button post. A first positioning groove and a second positioning groove are respectively provided on the side walls on both sides of the push button groove. The positioning platform slides into the first and second positioning grooves under the action of the compression spring, thereby realizing the positioning of the protective sleeve in the protection position and the storage position.

[0016] Furthermore, the push button includes a circular push button cap, which is disposed outside the handle.

[0017] Furthermore, the connecting block is provided with a flange.

[0018] Furthermore, when the protective sleeve is in the protected position, the tip of the blade extends into the blade outlet but does not extend out of the protective head.

[0019] The beneficial effects of this utility model's protective sleeve for storing knives are:

[0020] By setting the protective cover and the knife handle to a sliding connection, the protective cover slides into the knife handle to extend the knife, making operation convenient, and the protective cover can be stored at the same time as extending the knife. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the protective sleeve for storing knives provided in this embodiment of the utility model when in the protected position;

[0023] Figure 2 This is a schematic diagram of the protective sleeve for storing knives provided in this embodiment of the utility model when it is in the storage position.

[0024] Figure 3 This is a diagram of the knife handle provided in an embodiment of this utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram showing the knife handle, push button, and connecting block connected to each other in an embodiment of this utility model.

[0026] Figure 5 This is a cross-sectional view of the tool holder at the first positioning groove provided in an embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional view of the tool holder, push button, and connecting block in the second positioning groove in the interconnected state provided in this embodiment of the utility model.

[0028] Figure 7 This is a schematic diagram showing the interconnected state of the protective sleeve, push button, and connecting block provided in this embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the push button structure provided in an embodiment of the present utility model;

[0030] Figure 9 This is a schematic diagram of the connecting block structure provided in an embodiment of the present utility model.

[0031] Reference numerals: Blade 1, Blade tip 10, Blade handle 2, Blade holder 20, Slide groove 21, Slide groove opening 22, Connecting cavity 23, Connecting block 24, Connecting hole 240, Spring seat 241, Flange 243, Push button groove 25, Side wall 250, First positioning groove 251, Second positioning groove 252, Protective sleeve 3, Protective head 30, Blade outlet 301, Protective frame 31, Push button 4, Push button cap 41, Push button post 42, Positioning platform 420, Pressing surface 421, Snap-fit ​​foot 43, Anti-detachment platform 430. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1 , Figure 2 As shown, the protective sleeve provided by this utility model can accommodate a knife including a blade 1, a handle 2, and a protective sleeve 3. A blade holder 20 is provided at one end of the handle 2, and the blade 1 is fixedly connected to the handle 2 at the blade holder 20. Figure 3As shown, both sides of the handle 2 are provided with a sliding groove 21 along the length direction of the handle 2. The sliding groove 21 extends to the blade seat 20 of the handle 2 and forms a sliding groove opening 22 at the blade seat 20.

[0034] like Figure 7 As shown, the protective sleeve 3 consists of two protective frames 31 and a protective head 30. One end of the two protective frames 31 is connected by the protective head 30, and the other end of the two protective frames 31 is defined as the insertion end. The protective head 30 is provided with a blade outlet 301. The insertion ends of the two protective frames 31 are inserted into the slide grooves 21 on both sides of the blade holder 2 through the slide grooves 22 at the blade holder 20. The sliding connection between the protective sleeve 3 and the blade holder 2 is achieved by the sliding of the protective frames 31 in the slide grooves 21.

[0035] like Figure 1 As shown, when the protective sleeve 3 is in the protected position, the protective frame 31 and the protective head 30 of the protective sleeve 3 surround the blade 1, protecting the blade edge and tip of the blade 1, thus achieving the protective function of the protective sleeve 3 for the blade 1. The length of the two protective frames 31 is greater than the length of the blade 1, ensuring that while the protective sleeve 3 wraps around the blade 1, the insertion end of the protective frame 31 is still inserted in the slide groove 21, maintaining the connection between the protective sleeve 3 and the handle 2. When the protective sleeve 3 slides from the protected position to the storage position, the protective frames 31 on both sides of the protective sleeve 3 gradually slide into the slide grooves 21 on both sides of the handle 2. The protective sleeve 3 slides relative to the blade 1 towards the handle 2, and the blade 1 extends from the blade outlet 301 of the protective head 30 until the protective sleeve 3 slides to the storage position, at which point the protective frame 31 of the protective sleeve 3 completely slides into the slide grooves 21 on both sides of the handle 2, achieving the simultaneous dispensing and storage of the protective sleeve 3. Figure 2 As shown.

[0036] like Figures 4-6 As shown, in some embodiments of this utility model, a connecting cavity 23 is further provided inside the knife handle 2. A connecting block 24 is slidably disposed within the connecting cavity 23. The connecting cavity 23 connects the sliding grooves 21 on both sides of the knife handle 2. The insertion ends of the two protective frames 31 of the protective sleeve 3 are connected through the connecting block 24 in the connecting cavity 23 after being inserted into the sliding grooves 21 on both sides of the knife handle 2. The dimension of the connecting cavity 23 along the length direction of the knife handle 2 is defined as the length of the connecting cavity 23. The length of the connecting cavity 23 is set to be sufficient for the connecting block 24 to slide with the protective sleeve 3 between the first and second positions.

[0037] Preferably, the connecting block 24 is connected to the two protective frames 31 by a pin. A through pin hole is provided on both the connecting block 24 and the two protective frames 31. A pin passes through the pin hole in one protective frame 31, through the pin hole in the connecting block 24, and into the pin hole in the other protective frame 31, thus connecting the two protective frames 31 to the connecting block 24. This connection method is simple and easy to assemble and disassemble. Figure 6 As shown.

[0038] Preferred, such as Figure 1 As shown, in the protected position, the tip 10 of the blade 1 extends into the outlet 301 of the protective head 30, but the tip 10 does not extend out of the protective head 30. When the protective sleeve 3 slides from the protected position to the storage position, it avoids the blade 1 from deviating from the outlet 301 due to deformation or other external forces, thus preventing the protective sleeve 3 from being obstructed from sliding.

[0039] In some embodiments of this utility model, such as Figures 4-6 As shown, the tool holder 2 is also provided with a push button 4 and a push button groove 25 for the push button 4 to slide. The push button groove 25 is located in a direction perpendicular to the plane where the two side slide grooves 21 are located, and communicates with the connecting cavity 23. One end of the push button 4 enters the connecting cavity 23 through the push button groove 25 and is connected to the connecting block 24 in the connecting cavity 23, while the other end protrudes outside the tool holder 2. By pushing the push button 4 to slide along the push button groove 25, the connecting block 24 can be driven to slide in the connecting cavity 23, and the two protective frames 31 can slide in the slide grooves 21, ultimately pushing the protective sleeve 3 to slide relative to the tool holder 2. The length of the push button groove 25 is also set to allow the push button 4 to drive the protective sleeve 3 to slide between the first and second positions.

[0040] The connection between the push button 4 and the connecting block 24 can be made using conventional connection methods in the art, such as threaded connection.

[0041] Preferred, such as Figure 8 , Figure 9 As shown, the push button 4 includes a push button cap, a push button post 42, and locking feet 43. The push button cap is circular and larger in area than the push button post 42, making it easier for the user to apply force when pushing the push button cap. The push button post 42 of the push button 4 passes through the push button slot 25. The top of the push button post 42 is connected to the push button cap located outside the handle 2. The bottom of the push button post 42 is provided with two locking feet 43, and both locking feet 43 have anti-disengagement platforms 430 on their outer sides. The connecting block 24 is provided with two connecting holes 240. The position and size of the two connecting holes 240 correspond to the two locking feet 43 of the connecting post. When the locking feet 43 are inserted into the connecting holes 240, due to the anti-disengagement platforms 430 on their outer sides, the two locking feet 43 need to undergo opposing elastic deformations to allow the locking feet 43 with anti-disengagement platforms 430 to be inserted smoothly. After the locking pin 43 is fully inserted into the connecting hole 240 and the anti-detachment platform 430 protrudes from the connecting hole 240, the locking pin 43 returns to its original state, and the anti-detachment platform 430 locks the bottom of the connecting block 24 to prevent the push button 4 from detaching from the connecting block 24. In order to make the locking pin 43 generate opposite elastic deformation smoothly when inserted into the connecting hole 240, the bottom of the anti-detachment platform 430 can be provided with a chamfer or inclined surface to form a guide slope, which guides the locking pin 43 to generate opposite elastic deformation when inserted into the connecting hole 240, reducing the resistance of the locking pin 43 when inserted into the connecting hole 240.

[0042] Preferably, a compression spring 242 is provided between the push button 4 and the connecting block 24. Positioning platforms 420 are provided on both sides of the push button post 42, near the side wall 250 of the push button groove 25. A first positioning groove 251 and a second positioning groove 252 are provided on the side walls 250 of the push button groove 25. The first positioning groove 251 and the second positioning groove 252 are perpendicular to the push button groove 25 and extend from the surface of the handle 2 to the connecting cavity 23. The push button 4 needs to be connected to the connecting block 24 at the first positioning groove 251 or the second positioning groove 252. The positioning platform 420 slides into the first positioning groove 251 or the second positioning groove 252 so that the push button post 42 can extend into the connecting cavity 23. Figure 9 As shown, a spring seat 241 is provided between the two connecting holes 240 in the connecting block 24. A compression spring 242 is provided in the spring seat 241, which is not shown in the attached drawing. After the push button 4 is connected to the connecting block 24, the bottom of the connecting post compresses the compression spring 242 at the pressing surface between the two snap-fit ​​feet 43, and the spring is in a compressed elastic deformation state. Under the restoring force of the compression spring 242, the push button 4 is pushed upward, and the positioning table 420 slides into the first positioning groove 251 or the second positioning groove 252. The push button 4 is positioned, thereby also positioning the protective sleeve 3.

[0043] For example, when the protective sleeve 3 is initially in the protected position, it covers the blade 1 and is in the retracted state. At this time, the positioning platforms 420 on both sides of the push button 4 slide into the first positioning groove 251 under the action of the compression spring 242. The push button 4 cannot slide along the push button groove 25, and the protective sleeve 3 cannot slide towards the tool holder 2. The protective sleeve 3 remains in a reliable retracted state. When the tool needs to be used, the push button 4 needs to be pressed to make the positioning platform 420 slide out of the first positioning groove 251 and into the connecting cavity 23, and at the same time push the push button 4 towards the second positioning groove 252. As the slide proceeds, the compression spring 242 is further compressed. However, since the positioning platform 420 is misaligned with the first positioning groove 251, the positioning platform 420 remains within the connecting cavity 23 and slides with the push button 4 until the push button 4 slides into the second positioning groove 252. Under the action of the compression spring 242, the positioning platform 420 is pushed into the second positioning groove 252, and the push button 4 is also lifted and positioned, unable to slide further along the push button groove 25. The protective sleeve 3 is positioned in the storage position, the protective frame 31 retracts into the knife handle 2, and the protective sleeve 3 remains in a reliable knife-out state. The operation of the protective sleeve 3 sliding from the storage position to the protection position is similar to the above operation and will not be described again.

[0044] Preferably, the connecting block 24 has flanges on both sides of the top and bottom surfaces that are arranged along the sliding direction to reduce the contact area between the connecting block 24 and the connecting cavity 23 and reduce the sliding friction resistance of the connecting block 24, so that the push button 4 can drive the connecting block 24 and the protective sleeve 3 to slide.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0046] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0047] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sheath stowable knife characterized by, include: blade; A knife handle, the blade being connected to a blade holder at the end of the knife handle, and the knife handle having grooves on both sides that extend to the blade holder; The protective sleeve consists of two protective frames and a protective head. One end of the two protective frames is connected through the protective head, and the other end is inserted into the sliding groove to achieve a sliding connection between the protective sleeve and the knife handle. The protective head is provided with a knife outlet. When the protective cover slides to the protective position, it surrounds the blade; when the protective cover slides to the storage position, the protective frame slides into the handle to store the protective cover, and the blade extends from the blade outlet.

2. The sheath-storable knife of claim 1, wherein, The handle has a connecting cavity that connects the two slide grooves. A connecting block is slidably disposed in the connecting cavity and is connected to the two protective frames.

3. The sheath-storable knife of claim 2, wherein, The connecting block is connected to the two protective frames by pins.

4. The sheath-storable knife of claim 2, wherein, The handle is also provided with a push button and a push button groove for sliding the push button. The push button groove communicates with the connecting cavity, and the push button is connected to the connecting block in the connecting cavity.

5. The sheath-storable knife of claim 4, wherein, The push button has two locking feet at its bottom, and each locking foot has an anti-detachment plate on its outer side. The connecting block has two connecting holes. The locking feet are inserted into the connecting holes, and the anti-detachment plates protrude from the connecting holes, thereby connecting the push button and the connecting block and preventing detachment.

6. The sheath-storable knife of claim 5, wherein, The bottom of the anti-detachment platform is provided with a guide slope.

7. The sheath-storable knife of claim 5, wherein, A compression spring is provided between the push button and the connecting block. Positioning platforms are provided on both sides of the push button post. A first positioning groove and a second positioning groove are respectively provided on the side walls on both sides of the push button groove. The positioning platform slides into the first and second positioning grooves under the action of the compression spring, thereby realizing the positioning of the protective sleeve in the protection position and the storage position.

8. The sheath-storable knife of claim 4, wherein, The push button includes a circular push button cap, which is disposed outside the handle.

9. The sheathable knife of any one of claims 2 to 8, wherein, The connecting block is provided with a flange.

10. The sheath-storable knife of claim 1, wherein, When the protective sleeve is in the protected position, the tip of the blade extends into the blade outlet but does not extend out of the protective head.

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