Cutter capable of rapidly replacing blade

Abstract

The utility model relates to a cutter with a blade capable of being replaced quickly. A fixing plate; an elastic sheet is formed on the function board; the bottom of the locking piece abuts against the top of the elastic piece; the blade is provided with a positioning groove, the blade is matched with the positioning pin through the positioning groove to achieve rotating connection between the blade and the fixing plate, a positioning mechanism is arranged between the function plate and the blade, and a fixing mechanism is arranged between the locking piece and the blade. A fixed function plate is arranged between the fixing plates, an elastic piece is formed on the function plate, a rotatable locking piece is further arranged between the fixing plates, the lower end of the locking piece is matched with the upper end of the elastic piece in an abutting mode, a positioning mechanism capable of aligning the inserted blade is arranged between the blade and the function plate, and a fixing mechanism is arranged between one end of the locking piece and the cutter. Therefore, the blade is locked and fixed through the fixing mechanism and the locking piece when being completely unfolded, the blade is prevented from rotating during use, the fixing mechanism can be released by pressing the upper end of the locking piece, the blade is convenient to fold, and the locking piece is rapidly reset through the elastic piece.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a cutting tool with a quick-change insert. Background Technology

[0002] In the market, for folding knives, the blade is usually locked to the handle with a screw, and the blade is unfolded and folded by rotating the blade. However, since there is no mechanism designed to fix the blade when unfolded, the blade will rotate during use, which seriously affects the use. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a quick-change cutting tool, comprising:

[0004] The handles are provided in pairs.

[0005] The fixing plates are set in pairs. The fixing plates are adapted and fixedly installed to the inside of the handle. The fixing plates are locked together by screws passing through the handle. There is a space between the fixing plates.

[0006] A functional plate is fixed between the fixed plates, and a spring is formed on the functional plate;

[0007] A locking element is rotatably connected between the fixed plates, with the bottom of the locking element and the top of the spring contact abutting each other;

[0008] The blade has a positioning groove. A positioning pin is fixed on one end of the handle and the fixing plate. The blade is rotated between the blade and the fixing plate through the positioning groove and the positioning pin. A positioning mechanism is provided between the functional plate and the blade. A fixing mechanism is provided between the locking member and the blade. Pressing one end of the locking member and inserting the blade between the fixing plates will cause the positioning groove and the positioning pin to engage under the guidance of the positioning mechanism. Releasing the locking member will cause the fixing mechanism to lock the blade and the locking member together.

[0009] A further embodiment of this utility model is that the positioning mechanism consists of a positioning protrusion formed below the positioning groove and a positioning groove formed at one end of the functional plate. When the blade is inserted between the fixing plates, the positioning pin and the positioning groove are engaged in place, and the positioning protrusion and the positioning groove are engaged in positioning.

[0010] A further embodiment of this utility model is that the fixing mechanism consists of a buckle groove formed on the upper side of the positioning groove and an undercut formed on one end of the locking member, wherein the undercut and the buckle groove are engaged in a fastening fit.

[0011] A further embodiment of this utility model is that the positioning groove is a U-shaped groove.

[0012] A further embodiment of this utility model is that the spring piece is an arc-shaped extension structure that contacts the lower end face of the lock.

[0013] A further embodiment of this utility model is that an arc-shaped clearance groove is provided at the upper end of both the fixing plate and the handle to expose the upper part of one end of the lock in the clearance groove.

[0014] A further embodiment of this utility model is that the lock member exposed in the clearance groove is bent into a pressing part.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This cutting tool features a fixed functional plate between fixed plates, with a spring-loaded tab on the functional plate. A rotatable locking element is also provided between the fixed plates, with the lower end of the locking element and the upper end of the spring-loaded tab engaging. A positioning mechanism is provided between the blade and the functional plate to accurately align the inserted blade. A fixing mechanism is provided between one end of the locking element and the cutting tool, so that the blade is locked in place by the fixing mechanism when fully extended, preventing the blade from rotating during use. Pressing the upper end of the locking element releases the fixing mechanism, facilitating blade folding. The spring-loaded tab quickly resets the locking element.

[0017] The positioning groove is a U-shaped groove. The opening of the positioning groove is aligned with the positioning pin so that the blade can be directly inserted between the fixing plates. The blade is then locked by the fixing mechanism, allowing for quick installation or replacement of the blade.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the blade of a quick-change tool when it is fully extended.

[0020] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0021] Figure 3 This is a schematic diagram of the structure when the lock and blade are unlocked. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This embodiment provides a quick-change cutting tool, including:

[0027] Handle 1 is set in pairs.

[0028] The fixing plate 2 is set in pairs. The fixing plate 2 is adapted and fixedly installed to the inner side of the handle 1. The fixing plate 2 is locked and connected by screws 3 passing through the handle 1. The fixing plates 2 form a receiving space. The upper end of both the fixing plate 2 and the handle 1 is provided with an arc-shaped clearance groove 20.

[0029] Functional plate 4 is fixed between the fixed plates 2, and spring piece 40 is formed on the functional plate 4.

[0030] Locking element 5 is rotatably connected between the fixed plates 2, and the bottom of the locking element 5 abuts against the top of the spring piece 40.

[0031] The blade 6 has a positioning groove 60. A positioning pin 7 is fixed on one end of the handle 1 and the fixing plate 2. The blade 6 is rotated between the blade 6 and the fixing plate 2 through the positioning groove 60 and the positioning pin 7. A positioning mechanism is provided between the functional plate 4 and the blade 6. A fixing mechanism is provided between the locking member 5 and the blade 6. Pressing one end of the locking member 5 and inserting the blade 6 between the fixing plates 2 will cause the positioning groove 60 and the positioning pin 7 to engage in place under the guidance of the positioning mechanism. Releasing the locking member 5 will cause the fixing mechanism to lock the blade 6 and the locking member 5 in place.

[0032] In this embodiment, specifically, the positioning mechanism consists of a positioning protrusion 61 formed below the positioning groove 60 and a positioning groove 41 formed at one end of the functional plate 4. When the blade 6 is inserted between the fixing plates 2, the positioning pin 7 engages with the positioning groove 60, and the positioning protrusion 61 engages with the positioning groove 41. With the cooperation of the positioning mechanism, the blade 6 and the locking piece 5 are aligned accurately and fully extended.

[0033] In this embodiment, more specifically, the fixing mechanism is a buckle groove 62 formed on the upper side of the positioning groove 60 and a buckle 50 formed on one end of the locking member 5. The buckle 50 and the buckle groove 62 are fastened together. When the other end of the locking member 5 away from the buckle 50 is pressed, the buckle 50 is lifted and the fixed state between it and the buckle groove 62 is released. At this time, the blade 6 can be rotated, folded or disassembled. When the blade 6 is fully unfolded, the buckle 50 and the buckle groove 62 are fastened to fix the blade 6 and prevent rotation problems during use.

[0034] In this embodiment, the spring piece 40 is an arc-shaped extension structure that contacts the lower end face of the lock piece 5. Therefore, when the lock piece 5 is pressed, the arc-shaped contour makes the rotation process of the lock piece 5 more stable, and after the lock piece 5 is released, it can be smoothly reset.

[0035] In this embodiment, more specifically, the locking member 5 is bent into a pressing part 51 at the exposed clearance groove 20, which can increase the pressing area and improve the pressing feel.

[0036] In addition, in this embodiment, the positioning groove 60 is a U-shaped groove. The opening of the positioning groove 60 is aligned with the positioning pin 7 so that the blade 6 can be directly inserted between the fixing plates 2. The blade 6 is then locked by the fixing mechanism, allowing for quick installation or replacement of the blade 6.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A quick-change blade tool, characterized in that, include: The handles are provided in pairs. The fixing plates are set in pairs. The fixing plates are adapted and fixedly installed to the inside of the handle. The fixing plates are locked together by screws passing through the handle. There is a space between the fixing plates. A functional plate is fixed between the fixed plates, and a spring is formed on the functional plate; A locking element is rotatably connected between the fixed plates, with the bottom of the locking element and the top of the spring contact abutting each other; The blade has a positioning groove. A positioning pin is fixed on one end of the handle and the fixing plate. The blade is rotated between the blade and the fixing plate through the positioning groove and the positioning pin. A positioning mechanism is provided between the functional plate and the blade. A fixing mechanism is provided between the locking member and the blade. Pressing one end of the locking member and inserting the blade between the fixing plates will cause the positioning groove and the positioning pin to engage under the guidance of the positioning mechanism. Releasing the locking member will cause the fixing mechanism to lock the blade and the locking member together.

2. The cutting tool with quick-change inserts according to claim 1, characterized in that, The positioning mechanism consists of a positioning protrusion formed below the positioning groove and a positioning groove formed at one end of the functional plate. When the blade is inserted between the fixing plates, the positioning pin engages with the positioning groove, and the positioning protrusion engages with the positioning groove.

3. The cutting tool with quick-change inserts according to claim 1, characterized in that, The fixing mechanism consists of a buckle groove formed on the upper side of the positioning groove and an undercut formed on one end of the locking member, and the undercut and the buckle groove are fastened together.

4. The cutting tool with quick-change inserts according to claim 1, characterized in that, The positioning groove is a U-shaped groove.

5. A quick-change cutting tool according to claim 1, characterized in that, The spring clip has an arc-shaped extension structure that contacts the lower end face of the lock.

6. A quick-change cutting tool according to claim 1, characterized in that, Both the fixing plate and the upper end of the handle are provided with arc-shaped clearance grooves to expose the upper part of one end of the lock in the clearance grooves.

7. A quick-change cutting tool according to claim 6, characterized in that, The locking element is bent into a pressing part at the exposed clearance groove.

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