Foldable cutter

Abstract

A foldable cutter comprises a cutter body, a cutter handle and a containing groove, the rear portion of the cutter body and the front portion of the cutter handle are rotatably fixed together, the containing groove allowing the cutter body to be hidden is formed in the bottom of the cutter handle, a first clamping opening and a second clamping opening are formed in the rear portion of the cutter body, and the cutter body is in a folded state or an unfolded state correspondingly. The safe knife is characterized in that an active locking mechanism is arranged on the upper portion of the front end of the knife handle and matched with a first clamping opening and a second clamping opening in the knife body respectively, the functions of locking and unlocking the knife body in the folded or unfolded state are achieved, and the safe knife is simple in structure, convenient to use, safe, stable and not prone to being used by children.

Description

Technical Field

[0001] The utility model relates to the field of knives, in particular to a foldable knife. Background Art

[0002] Knives are common tools in household kitchens and are used by users to cut vegetables, peel fruits, and chop pork. Since the blades are very sharp, they can easily cause injuries to users if used improperly. Children, due to their young age, are not capable of using knives and can be easily injured if they are not careful. Therefore, there are safety knives on the market for consumers to purchase and use. However, the knives on the market either have complex structures, or the locking devices can easily cause damage to the knives, or the blade structure is not strong enough.

[0003] The patent number is CN201120124973.8, which discloses a safety knife, belonging to a kind of knife, which mainly solves the problem that traditional knives are poor in safety and easy to open. Its structure includes a knife body consisting of a blade and a handle, one end of the handle is hinged with a blade through a pin, the middle of the blade is provided with a threaded through hole, the middle of one side of the handle is provided with a locking screw, the inner end of the locking screw passes through the threaded through hole on the blade and abuts against the inner wall of the other side of the handle. The knife of the utility model can fix the blade in the groove of the handle when not in use, preventing children from opening it and causing injuries, and is safe and convenient to use. Summary of the invention

[0004] The utility model mainly aims at providing a foldable knife for solving the problems in the prior art, which has the advantages of simple structure, convenient use, safety and stability, and is not easy to be used by children.

[0005] The technical solution of the utility model is: a foldable knife, comprising a knife body, a knife handle, and a storage groove. The rear part of the knife body and the front part of the knife handle are rotatably fixed together. The bottom of the knife handle is provided with a storage groove for hiding the knife body. The rear part of the knife body is respectively provided with a first bayonet and a second bayonet, corresponding to the knife body being in a folded state or an opened state. It is characterized in that the upper front end of the knife handle is provided with an active locking mechanism, which is respectively matched with the first bayonet and the second bayonet on the knife body to realize the function of locking and unlocking the knife body in the folded or opened state.

[0006] Further improvement: the active locking mechanism is a locking member mounted on the knife handle in a limited and rotatable manner.

[0007] Further improvement: the locking piece is U-shaped and is made of an elastic strip made of metal material, and the lengths of the two ends of the locking piece are different.

[0008] Further improvement: A U-shaped step surface cooperating with the locking piece is arranged on the upper front end of the knife handle, and two connecting holes are respectively opened on the side wall of the knife handle of the U-shaped step surface for the connecting ends on the left and right sides of the locking piece to be inserted.

[0009] Further improvement: The front end of the knife handle is provided with a finger hole groove below the U-shaped step surface for a finger to pull the locking piece.

[0010] Further improvement: the knife handle is an integral knife handle and is arc-shaped so that the knife body can be exposed at the bottom of the belly of the handle.

[0011] Finally: the rear part of the knife body is provided with a fixing hole, and the front part of the corresponding knife handle is provided with a matching fixing circular hole. The rivet passes through the fixing hole and the fixing circular hole to rotatably fix the knife body and the knife handle together.

[0012] Compared with the prior art, the technical advantages of this product are: the active locking mechanism and the first bayonet and the second bayonet cooperate to realize the locking and unlocking functions of the knife body. The different lengths at the two ends of the metal elastic strip require the user to use greater force to pry it open and unlock it, and require the cooperation of both hands, thereby preventing children from using the knife. The structure is simple, the cost is low, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a view of the utility model in an unfolded state.

[0014] Figure 2 This is a schematic diagram of the explosion structure of the utility model.

[0015] Figure 3 It is a three-dimensional schematic diagram of the utility model in an unfolded state.

[0016] Figure 4 It is a perspective view of the utility model.

[0017] Figure 5 It is a side view of the utility model in the storage state.

[0018] Figure 6 This is a bottom view of the utility model in the storage state.

[0019] In the figure, 1, knife body, 2, knife handle, 3, storage groove, 4, first bayonet, 5, second bayonet, 6, active locking mechanism, 7, locking piece, 8, U-shaped step surface, 9, connecting hole, 10, finger hole groove, 11, fixing hole, 12, fixing circular hole. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation methods of the utility model patent in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model patent, but cannot be used to limit the scope of the utility model patent. In the description of the utility model patent, unless otherwise specified, the meaning of "multiple" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model patent. In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of this utility model patent, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model patent can be understood according to specific circumstances.

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] according to Figures 1 to 6 A foldable knife comprises a knife body 1, a knife handle 2, and a storage slot 3. The rear part of the knife body 1 and the front part of the knife handle 2 are rotatably fixed together. The bottom of the knife handle 2 is provided with a storage slot 3 for the knife body 1 to be hidden inside. The rear part of the knife body 1 is respectively provided with a first bayonet 4 and a second bayonet 5, corresponding to the knife body 1 being in a folded state or an open state. The improvement lies in that an active locking mechanism 6 is provided on the upper front end of the knife handle 2, which respectively cooperates with the first bayonet 4 and the second bayonet 5 on the knife body 1 to realize the function of locking and unlocking the knife body 1 in a folded or open state.

[0024] The active locking mechanism 6 is a locking member 7 which is mounted on the handle 2 in a limited rotational manner. The locking member 7 is in a U-shaped shape and is made of an elastic strip made of metal material. The lengths of the two ends of the locking member 7 are different. A U-shaped step surface 8 matching with the locking member 7 is provided on the upper front end of the handle 2. Two connecting holes 9 are respectively provided on the side walls of the handle 2 on the U-shaped step surface 8 for the connecting ends on the left and right sides of the locking member 7 to be inserted. The locking member 7 with different lengths at both ends limits its rotation angle. Since the elastic strip made of metal material such as steel wire is used, both hands are required to cooperate when breaking it, and a large force is required, so as to prevent children from breaking the locking member 7. When the locking member 7 and the first bayonet 4 are fixed, the blade 1 is in an open state, and the function of locking the blade 1 can be realized. When the locking member 7 and the second bayonet 5 are fixed, the blade 1 is in a folded state, and the function of safety locking is realized to prevent the blade 1 from accidentally escaping from the storage slot 3 at the bottom of the handle 2.

[0025] The front end of the knife handle 2 is provided with a finger hole groove 10 for the finger to pull the locking piece 7 below the U-shaped step surface 8, so that the user can use the finger to pry open the locking piece 7. The knife handle 2 can be an integral knife handle 2 or a split knife handle, and is in an arc shape, so that the knife body 1 can be exposed on the bottom surface of the belly of the handle 2. The rear part of the knife body 1 is provided with a fixing hole 11, and the front part of the corresponding knife handle 2 is provided with a matching fixing circular hole 12. The rivet passes through the fixing hole 11 and the fixing circular hole 12 to rotatably fix the knife body 1 and the knife handle 2 together. The knife body 1 and the locking piece 7 are made of metal materials, and the knife handle 2 can be made of plastic materials, wood materials or metal materials, and the knife handle 2 can be a structure with two halves combined, and the two halves of the knife handle 2 are fixed together using screws and bolts, or the knife handle 2 can be integrally formed.

[0026] When the user needs to use the knife, he only needs to use his fingers to pry open the locking piece 7 from the second bayonet 5 through the finger hole slot 10, and pull the knife body 1 out of the storage slot 3 of the handle 2 and rotate it to an appropriate position such as a horizontal open state, and put the locking piece 7 into the first bayonet 4, thereby realizing the function of locking the knife body 1, and the knife can be used safely.

[0027] When the user needs to safely store the knife, he only needs to use his fingers to pry open the locking piece 7 from the first bayonet 4, and rotate the knife body 1 along the fixing hole 11 to fold and store the knife body 1 into the storage groove 3 at the bottom of the handle 2, and then release the locking piece 7 to fix it with the second bayonet 5, thereby realizing the function of safe locking.

Claims

1. A foldable knife, comprising a knife body, a knife handle, and a storage slot, wherein the rear portion of the knife body and the front portion of the knife handle are rotatably fixed together, the bottom of the knife handle is provided with a storage slot for the knife body to be hidden, the rear portion of the knife body is respectively provided with a first bayonet and a second bayonet, corresponding to the knife body being in a folded state or an open state, characterized in that An active locking mechanism is provided on the upper front end of the knife handle, which cooperates with the first bayonet and the second bayonet on the knife body respectively, so as to realize the function of locking and unlocking the knife body in a folded or opened state.

2. The foldable knife according to claim 1, characterized in that The active locking mechanism is a locking piece which is mounted on the knife handle in a limited and rotatable manner.

3. The foldable knife according to claim 2, characterized in that The locking piece is in a U-shape and is made of an elastic strip made of metal material. The two ends of the locking piece have different lengths.

4. The foldable knife according to claim 3, characterized in that The upper front end of the knife handle is provided with a U-shaped step surface matched with the locking piece, and two connecting holes are respectively opened on the side wall of the knife handle of the U-shaped step surface for the connecting ends on the left and right sides of the locking piece to be inserted.

5. The foldable knife according to claim 4, characterized in that The front end of the knife handle is provided with a finger hole groove below the U-shaped step surface for fingers to pull the locking piece.

6. The foldable knife according to claim 1, characterized in that The knife handle is an integral knife handle and is in an arc shape, so that the knife body can be exposed on the bottom surface of the belly of the handle.

7. The foldable knife according to claim 1, characterized in that The rear part of the knife body is provided with a fixing hole, and the front part of the corresponding knife handle is provided with a matching fixing circular hole. The rivet passes through the fixing hole and the fixing circular hole to rotatably fix the knife body and the knife handle together.

Images