Multi-purpose scissors

Abstract

This utility model discloses a multifunctional scissors, belonging to the category of manual cutting tools. Existing multifunctional scissors are inconvenient for changing cutting boards. The multifunctional scissors of this utility model include a first handle and a second handle that are crossed and pivotally connected. The front end of the first handle is equipped with a forward-extending blade, and the front end of the second handle has a forward-extending base. The base is equipped with at least two cutting boards with different functions for the user to choose from as needed. Each cutting board is selectively located in the base and constrained to the base by a detachable pin, arranged in a uniform assembly structure. The detachable pin enables the installation and removal of the cutting boards, facilitating quick and easy replacement. The blade faces the cutting board, so that when the first and second handles are separated, the blade and cutting board are open to allow the workpiece to be placed on the cutting board; when the first and second handles are brought together, the blade and cutting board are close together to cut the workpiece.

Description

Technical Field

[0001] This utility model pertains to manual cutting tools, specifically a multi-functional pair of scissors that allows users to change the cutting board as needed to meet different cutting requirements. Background Technology

[0002] Existing manual scissors for cutting workpieces have fixed cutting components (such as blades), lacking constraint on the workpiece. During cutting, the workpiece is prone to displacement under shearing force, hindering successful cutting. Furthermore, existing scissors only perform specific cutting operations, such as cutting perpendicular to the workpiece's length, resulting in limited functionality. Sometimes, to meet different cutting needs, multiple scissors with different functions need to be worn, increasing user costs and carrying burden. To address this, a multi-functional scissor solution has been proposed. This multi-functional scissor is equipped with different cutting boards, allowing users to attach the required board to the scissors as needed. The cutting board's structure positions the workpiece to achieve the cutting requirement. However, the different ways the cutting boards are attached to the scissors create inconvenience for users when changing cutting boards. Utility Model Content

[0003] This invention addresses the shortcoming of existing multi-functional scissors that are inconvenient to replace the cutting board by providing a multi-functional scissors that allows for easy replacement of the cutting board and enables various cutting functions.

[0004] To achieve the above objectives, the present invention provides a multifunctional pair of scissors, comprising a first handle and a second handle that intersect each other and are pivotally connected together. The first handle has a forward-extending blade at its front end. The second handle has a seat extending forward at its front end, and at least two anvils with different functions are mounted on the seat. One of the anvils is selectively located on the seat and is constrained to the seat by a detachable pin. The blade faces the anvil so that when the first and second handles are separated, the blade and the anvil are open to allow the workpiece to be placed on the anvil, and when the first and second handles are brought together, the blade and the anvil are close to each other to cut the workpiece.

[0005] This multi-functional scissors features at least two cutting boards with different functions on the base, allowing users to choose the appropriate board according to their needs. Furthermore, all cutting boards are mounted on the base using a uniform assembly structure; the cutting boards are situated on the base and secured by detachable pins, enabling easy and quick installation and removal of the cutting boards.

[0006] Among them, the position of the cutting board on the base refers to the positional relationship between the cutting board and the base, in which the base provides support for the cutting board during cutting.

[0007] Preferably, the base includes a first base wall and a second base wall spaced apart from each other, with a first gap between the first base wall and the second base wall. The cutting board has a bottom surface and a rib extending downward from the bottom surface, the rib being located within the first gap. A pin passes laterally through the first base wall, the rib, and the second base wall, allowing the cutting board to be replaceably mounted on the base. The bottom surface of the cutting board is located above the first and second base walls. Therefore, a stable and reliable positioning and support can be provided for the cutting board.

[0008] Preferably, the bottom surface of the cutting board rests on the top surface of the first and second walls; the two sides of the ribs respectively abut against the inner surfaces of the corresponding first and second walls. Accordingly, during cutting, the cutting board remains stable, providing reliable support for the workpiece placed on it and preventing workpiece movement that could cause cutting errors.

[0009] Preferably, the functional differences of the cutting boards are reflected in the differences in the shape of their supporting parts. Accordingly, each cutting board, based on its own differently shaped supporting parts, can position and support different workpieces.

[0010] Preferably, one of the anvils has a flat support portion. An angle positioning member, rotatable about an axis perpendicular to the flat surface, is mounted on the anvil. The angle positioning member has a positioning portion protruding from the flat surface and is positioned on the anvil via a positioning structure. The flat surface has graduations indicating the position of the angle positioning member. When cutting a workpiece, the angle positioning member is rotated to a suitable angle position according to the graduations, and then the workpiece is placed on the anvil and positioned by the positioning portion, achieving precise cutting of the workpiece.

[0011] Preferably, the positioning structure comprises several opposing first and second toothed grooves respectively disposed on the anvil and the angle positioning member and radially distributed around the axis. The first and second toothed grooves engage with each other to position the angle positioning member on the anvil. Given the distribution and number of the first and second toothed grooves, the angle positioning member can be accurately adjusted to a suitable angular position.

[0012] Preferably, the cutting board has a through hole, and the angle positioning member has a first screw that passes through the through hole. A first nut is connected to the first screw to constrain the angle positioning member on the cutting board, thus preventing the angle positioning member from detaching from the cutting board.

[0013] Preferably, a first elastic element is fitted onto the first screw. The first elastic element applies a spring force to the first screw, causing the first tooth groove and the second tooth groove to mesh with each other. Overcoming the spring force of the first elastic element causes the first screw to move along its axis within the through hole, and the first tooth groove and the second tooth groove to disengage. The spring force of the first elastic element causes the first tooth groove and the second tooth groove to mesh with each other with a certain preload, preventing the angle positioning component from accidentally rotating away from the predetermined position after it has been adjusted to that position.

[0014] Preferably, the middle portion of the positioning part is broken into a notch, and when the first and second handles are brought together, the blade moves closer to the anvil through this notch to cut the workpiece. Accordingly, the positioning part can be given sufficient length for more accurate positioning of the workpiece relying on it.

[0015] Preferably, the blade has a mounting hole at the rear, a rearward-facing retaining groove at the rear end of the blade, a pin on the first shank, and a pivot that extends laterally through the mounting holes of the first shank, the second shank, and the blade, with the pin engaged in the retaining groove. Accordingly, the blade can be replaced by removing the pivot.

[0016] Preferably, the first and second handles are partially connected by a bushing, with the pivot passing through the bushing. This ensures that the assembly of the first and second handles is maintained even when the pivot is removed, preventing them from falling apart and facilitating quick blade replacement.

[0017] Preferably, the first shank has a spaced first sidewall and a second sidewall, with a second gap between the first and second sidewalls. The second shank has a third sidewall and a fourth sidewall, with a third gap between the third and fourth sidewalls. The first shank passes through the third gap and intersects with the second shank. The rear end of the blade is located within the second gap. Adjacent first and third sidewalls and / or adjacent second and fourth sidewalls are connected by bushings. This structure provides sufficient strength for the first and second shanks, and prevents them from skewing when rotating about a pivot.

[0018] Preferably, the pivot is a second screw, which is connected to a fixed second nut to maintain the assembly relationship between the second screw and the first and second handles. The second nut is fixed to either the first or second handle according to the actual assembly structure. Furthermore, since the second nut is fixed, only the second screw needs to be tightened during assembly; the nut does not need to be tightened simultaneously, making assembly convenient.

[0019] Preferably, a second elastic element is supported between the first handle and the second handle, and the elastic force of the second elastic element causes the first handle and the second handle to separate. When the first handle and the second handle are held with one hand, this structure facilitates the relative separation of the first handle and the second handle, allowing the blade and the anvil to open so that the workpiece can be placed on the anvil.

[0020] Preferably, the first and second handles are separately provided with a blocking portion and a movable blocking member. When the first and second handles are brought together, the blocking member can be moved to a position that abuts against the blocking portion to prevent the first and second handles from separating, or it can be moved to a position that does not abut against the blocking portion to allow the first and second handles to separate. This allows the first and second handles to be brought together, keeping the overall shape of the scissors smaller and reducing the space occupied during storage.

[0021] Preferably, the first or second handle is equipped with a limiting pin. When the first and second handles are separated, the limiting pin blocks the separation range between them. This prevents the first and second handles from separating too much, which would make it difficult to hold with one hand or even cause the scissors to slip from the hand. Furthermore, if the first and second handles separate too much, the blade and the cutting board will also open excessively, which is not conducive to cutting the workpiece.

[0022] This invention provides at least two cutting boards with different functions for the base, allowing users to choose the appropriate cutting board according to their needs. Furthermore, each cutting board is arranged in a uniform assembly structure on the base; that is, the cutting board is situated on the base and constrained by a detachable pin. The detachable pin enables the installation and removal of the cutting board, facilitating quick and easy replacement.

[0023] This invention features a flat supporting portion of an anvil, on which an angle positioning member is mounted, rotatable about an axis perpendicular to the plane. The angle positioning member has a positioning portion protruding from the plane and is positioned on the anvil via a positioning structure. The plane is marked with graduations indicating the position of the angle positioning member. When cutting a workpiece, the angle positioning member is rotated to the appropriate angle position according to the graduations, and the workpiece is then placed on the anvil and positioned by the positioning portion, achieving precise cutting of the workpiece.

[0024] This invention connects the first and second handles partially with a bushing, and a pivot passes through the bushing. Therefore, when the pivot is removed, the assembly relationship between the first and second handles is maintained, preventing them from falling apart, which facilitates quick blade replacement. Attached Figure Description

[0025] Figure 1 A schematic diagram showing the configuration of the first cutting board for the multifunctional scissors of this utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the multi-functional scissors from another perspective;

[0027] Figure 3 for Figure 1-2 The diagram shows the multi-functional scissors with the blade and cutting board open and the angle positioning component rotating at an angle.

[0028] Figure 4 for Figure 1-2 A schematic diagram of the orthographic projection of the multi-functional scissors shown from one perspective;

[0029] Figure 5 for Figure 4 AA-direction cross section;

[0030] Figure 6 for Figure 1-2The diagram shows the first and second handles of the multi-functional scissors separated.

[0031] Figure 7 This is a schematic diagram of the present invention, which equips the seat with multiple cutting boards;

[0032] Figure 8 A schematic diagram showing the first handle of this utility model with a replaceable blade at the front end;

[0033] Figure 9 This is an exploded view of the structure of the first cutting board of this utility model;

[0034] Figure 10 for Figure 9 A schematic diagram of the first cutting board from another perspective;

[0035] Figure 11 for Figure 5 Enlarged sectional view of the BB direction;

[0036] Figure 12 A schematic diagram showing the configuration of the second cutting board for the multifunctional scissors of this utility model;

[0037] Figure 13 A schematic diagram showing the configuration of a third cutting board for the multifunctional scissors of this utility model;

[0038] Figure 14 A schematic diagram showing the configuration of the fourth cutting board for the multifunctional scissors of this utility model;

[0039] Explanation of the labels in the diagram:

[0040] 100 First handle, 101 Pin, 102 First sidewall, 103 Second sidewall, 104 Second gap, 105 Blocking element, 106 Groove;

[0041] 200 Second handle, 201 Seat, 202 First seat wall, 203 Second seat wall, 204 First gap, 205 Top surface, 206 Third side wall, 207 Fourth side wall, 208 Third gap, 209 Blocking part, 210 Limiting pin.

[0042] 300 Pivot, 301 Second Nut, 302 Bushing;

[0043] 400 blade, 401 cutting edge, 402 mounting hole, 403 slot, 404 sheath;

[0044] 510 First cutting board, 520 Second cutting board, 530 Third cutting board, 540 Fourth cutting board, 501 Bottom surface, 502 Rib, 503 Side surface, 504 Support, 505 Scale, 506 First tooth groove, 507 Through hole, 508 Slit.

[0045] 600-degree positioning component, 601 axis, 602 positioning part, 603 second tooth groove, 604 first screw, 605 first nut, 606 first elastic element, 607 washer, 608 notch;

[0046] 700 pin;

[0047] 800 Second elastic element. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0049] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion, such as a method or product that includes a series of technical features, not limited to those technical features explicitly listed, but also including other technical features that may be included in the method or product but not explicitly listed.

[0050] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Among them, "upper" and "lower," "left" and "right," and "front" and "rear" are opposite directions.

[0051] In the description of this utility model, it should be understood that the technical features defined by terms such as "first", "second", "third", "fourth" and other terms with sequential concepts are only for the purpose of clearly describing the defined technical features and making the defined technical features clearly distinguishable from other technical features, and do not represent that they are named in this way in actual implementation. Therefore, they should not be construed as limitations on this utility model.

[0052] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0053] like Figure 1-6 , Figure 11-14As shown, the multi-functional scissors include a first handle 100 and a second handle 200 that intersect each other, and the first and second handles are rotatably connected by a pivot 300. The front end of the first handle 100 is provided with a forward-extending blade 400, and the front end of the second handle 200 has a forward-extending seat 201. At least two cutting boards with different functions are provided for the seat. Figure 7 Four cutting boards are shown and named as first cutting board 510, second cutting board 520, third cutting board 530 and fourth cutting board 540, respectively, to avoid Figure 7 This is misinterpreted as meaning that four cutting boards can be simultaneously mounted on the seat. Three of these cutting boards are indicated by dashed lines, representing that each cutting board is selectively positioned on the seat and constrained to the seat 201 by a detachable pin 700. Figure 1-6 , Figure 11 A schematic diagram showing the first cutting board 510 disposed on the seat 201 is shown. Figure 12-14 Schematic diagrams showing the second cutting board 520, the third cutting board 530, and the fourth cutting board 540 disposed on the base 201 are shown respectively. In the following description, the assembly relationship between the cutting board and the base is illustrated using the first cutting board 510 as an example, and it can be considered that the other cutting boards can replace the first cutting board in the same assembly manner. The blade 401 of the blade faces the first cutting board 510, such that... Figure 3 When the first handle 100 and the second handle 200 are separated, the blade 400 and the first anvil 510 are opened to allow the workpiece to be placed on the first anvil 510, as shown. Figure 1-2 When the first and second handles are brought together, the blade 400 and the first anvil 510 move closer to each other to cut the workpiece.

[0054] This multi-functional scissors features multiple cutting boards with different functions on the base, allowing users to choose the appropriate board according to their needs. Furthermore, each cutting board is mounted on the base using a uniform assembly structure; each board is situated on the base and secured by a detachable pin, enabling easy and quick installation and removal of the cutting board.

[0055] In this application, the term "cutting board located on the base" specifically refers to the positional relationship between the cutting board and the base, where the base provides support for the cutting board during cutting.

[0056] like Figure 7As shown, the seat 201 includes a first seat wall 202 and a second seat wall 203 spaced apart from each other, with a first gap 204 between the first and second seat walls. The first cutting board 510 has a bottom surface 501 and a rib 502 extending downward from the bottom surface. The rib 502 is located within the first gap 204. A pin 700 passes laterally (in the left-right direction) through the first seat wall 202, the rib 502, and the second seat wall 203, allowing the first cutting board to be replaceably mounted on the seat. The bottom surface 501 of the first cutting board is located above the first seat wall 202 and the second seat wall 203 to provide support for the first cutting board during cutting. Therefore, a stable and reliable positioning and support can be provided for the first cutting board. In particular, the bottom surface of the first cutting board rests on the top surface 205 of the first and second seat walls; the two sides of the rib 502 respectively abut against the inner side of the corresponding first seat wall 202 and the inner side of the second seat wall 203. Therefore, during shearing, the first anvil is kept stable to provide reliable support for the workpiece placed on the first anvil, thus avoiding shearing errors caused by workpiece movement.

[0057] like Figure 7 and Figure 12-14 As shown, the functional differences between the various cutting boards are reflected in the different shapes of their support parts 504. Accordingly, each cutting board, based on its uniquely shaped support part, positions and supports different workpieces. For example, the support part of the first cutting board 510 is flat and equipped with an angle positioning component 600, which positions the workpiece to cut slits at different angles. The support part 504 of the second cutting board 520 is a V-shaped groove, suitable for positioning circular or polygonal tubes, rods, and other workpieces. The support part 504 of the third cutting board 530 consists of two semi-circular arc-shaped grooves arranged front and back, designed for positioning tubes and rods with circular, semi-circular, or arc-shaped cross-sections. The support part 504 of the fourth cutting board 540 is flat, suitable for supporting thin workpieces such as sheet metal.

[0058] To ensure that the blade edge completely passes over the workpiece and cuts it off completely during shearing, slits 508 are provided on each anvil to provide a position for the blade edge and to prevent the blade edge from cutting the anvil and causing damage to the anvil and the blade edge.

[0059] like Figure 1-6 as well as Figure 9-11As shown, the support portion 504 of the first anvil 510 is a plane. An angle positioning member 600, rotatable about an axis 601 perpendicular to the plane, is disposed on the first anvil 510. The angle positioning member 600 has a positioning portion 602 protruding from the plane. The angle positioning member 600 is positioned on the first anvil 510 by a positioning structure. Scales 505 indicating the position of the angle positioning member 600 are distributed on the plane. When cutting a workpiece, the angle positioning member 600 is rotated to a suitable angle position according to the scale indication. The positioning structure positions the angle positioning member 600, and the workpiece is then placed on the first anvil 510. Relying on the positioning portion 602 for workpiece positioning, the workpiece can be precisely cut.

[0060] like Figure 9-10 As shown, the positioning structure consists of several opposing first grooves 506 and second grooves 603, respectively disposed on the first anvil 510 and the angle positioning member 600 and radially distributed around the axis 601. The first grooves and second grooves engage with each other to position the angle positioning member 600 on the first anvil 510. Given the distribution and number of the first and second grooves, the angle positioning member can be accurately adjusted to a suitable angular position.

[0061] like Figure 9-10 As shown, the first cutting board 510 has a through hole 507, and the angle positioning member 600 has a first screw 604, which passes through the through hole 507. A first nut 605 is connected to the first screw 604 to constrain the angle positioning member 600 onto the first cutting board 510, preventing the angle positioning member from detaching from the cutting board. The axis 601 is the centerline between the through hole 507 and the first screw 604.

[0062] like Figure 9-10 As shown, a first elastic element 606, which is a helical compression spring, is fitted onto the first screw 604. The upper end of the helical compression spring is supported by the first anvil plate 510. The lower end of the helical compression spring applies a downward elastic force to the first screw 604 and the angle positioning member 600 through a washer 607 and a first nut 605, causing the first tooth groove 506 and the second tooth groove 603 to mesh together. Overcoming the elastic force of the first elastic element 606 causes the first screw 604 to move upward along its axis within the through hole 507, and the first tooth groove 506 and the second tooth groove 603 to disengage. The upward movement of the first screw along its axis within the through hole can be achieved by pushing the first screw upward or by pinching and pulling the positioning part upward. The elastic force of the first elastic element causes the first tooth groove and the second tooth groove to mesh together with a certain preload, preventing the angle positioning member from accidentally rotating away from the predetermined position after being adjusted to the predetermined position.

[0063] like Figure 3 , Figure 9-10As shown, the middle portion of the positioning part 602 is broken into a notch 608. (As indicated...) Figure 1 , Figure 4 When the first and second handles are brought together, the blade 400 approaches the first anvil 510 via the notch 608 to cut the workpiece. Accordingly, the positioning part can be given sufficient length for more accurate positioning of the workpiece relying on it.

[0064] like Figure 8 As shown, the blade 400 has a mounting hole 402 at its rear end and a rearward-facing retaining groove 403 at its rear end. The first handle 100 has a pin 101, which is fixed to the first handle 100 by welding or other means. A pivot 300 extends laterally through the mounting hole 402 of the first handle 100, the second handle 200, and the blade, with the pin 101 engaged in the retaining groove 403. Therefore, the blade can be replaced by removing the pivot. To protect the blade and prevent injury from exposed blade, a sheath 404 is also provided. The sheath 404 is used to cover the blade 400 when storing it or replacing it.

[0065] like Figure 11 As shown, the first handle 100 and the second handle 200 are partially connected by a bushing 302, and a pivot 300 passes through the bushing 302. Accordingly, when the pivot 300 is removed, the blade can be replaced while maintaining the assembly relationship between the first and second handles to prevent them from falling apart, which facilitates quick blade replacement. Specifically, the first handle 100 has a spaced first sidewall 102 and a second sidewall 103, with a second gap 104 between the first and second sidewalls. The second handle 200 has a third sidewall 206 and a fourth sidewall 207, with a third gap 208 between the third and fourth sidewalls. The first handle 100 passes through the third gap 208 and intersects with the second handle 200. The rear end of the blade 400 is located within the second gap 104. Adjacent first sidewalls 102 and third sidewalls (206) (or / and adjacent second and fourth sidewalls) are connected via bushings 302. The first and second handles of this structure have sufficient bending strength when held relative to each other due to the presence of the first, second, third, and fourth sidewalls, and the first and second handles will not deflect when rotating around the pivot.

[0066] like Figure 6 , Figure 11 As shown, pivot 300 is a second screw, which is connected to a second nut 301 welded and fixed to the outside of the fourth side wall 207 to maintain the assembly relationship between the second screw and the first and second handles. The second nut is fixed to either the first or second handle depending on the actual assembly structure. Because the second nut is fixed, only the second screw needs to be tightened during assembly; the nut does not need to be tightened simultaneously, making assembly convenient.

[0067] like Figure 5As shown, a second elastic element 800 is supported between the first handle 100 and the second handle 200. The second elastic element 800 is depicted as a plate-shaped spring, one end of which is riveted to the second handle 200, and the other end abuts against the first handle 100. The elastic force of the second elastic element causes the first handle and the second handle to separate. When holding the first and second handles with one hand, releasing the grip allows the first and second handles to separate relative to each other, opening the blade and anvil for placing the workpiece on the anvil.

[0068] like Figure 1-2 , Figure 3 As shown, the first handle 100 and the second handle 200 are separately provided with a blocking part 209 and a movable blocking member 105. In the illustrated structure, the blocking member 105 is rotatably assembled to the first handle via a pin. Figure 1-2 When the first and second handles are brought together, the blocking member 105 can be rotated to a position that abuts against the blocking part 209 to prevent the first and second handles from separating, or it can be rotated to a position that does not abut against the blocking part 209 to allow the first and second handles to move together as shown. Figure 3 As shown, the first and second handles can be kept folded together, keeping the overall shape of the scissors smaller and reducing the space they occupy when stored.

[0069] like Figure 2 , Figure 5 , Figure 7 As shown, the second handle 200 is provided with a limiting pin 210, which is fitted to the third side wall 206 and the fourth side wall 207 and spans the third gap 208. The first side wall 102 and the second side wall 103 of the first handle 100 are provided with slots 106. When the first handle 100 and the second handle 200 are separated until the limiting pin 210 is located in the slot 106, the second handle and the first handle are limited by the limiting pin to restrict the extent of separation between them. In other embodiments, the positions of the limiting pin and the slot are interchanged. For example, if the limiting pin is fixed to the first side wall and the second side wall of the first handle and extends outward (left and right), and the slot is provided on the third side wall and the fourth side wall of the second handle, then when the first handle and the second handle are separated until the limiting pin is located in the slot, the second handle and the first handle are limited by the limiting pin to restrict the extent of separation between them. Although a slot is provided, it is not necessary for blocking. However, by accommodating the limiting pin in the slot, the first handle and the second handle can be accurately limited. Therefore, it is important to avoid the first and second handles being separated too much, as this makes it difficult to hold the scissors with one hand or even cause them to slip from your hand. Furthermore, if the first and second handles are separated too much, the blade and the cutting board will also be excessively spread apart, which is not conducive to cutting the workpiece.

Claims

1. A multi-functional pair of scissors, comprising a first handle (100) and a second handle (200) that intersect, the first handle and the second handle being rotatably connected together by a pivot (300), the front end of the first handle being configured with a forward-extending blade (400), characterized in that: The second handle extends forward to a seat (201), which is equipped with at least two anvils with different functions. One of the anvils is located on the seat (201) and is constrained to the seat by a detachable pin (700). The blade (401) faces the anvil so that when the first and second handles are separated, the blade (400) and the anvil are open to allow the workpiece to be placed on the anvil. When the first and second handles are brought together, the blade (400) and the anvil are close to each other to cut the workpiece.

2. The multifunctional scissors according to claim 1, characterized in that: The seat (201) includes a first seat wall (202) and a second seat wall (203) spaced apart from each other, with a first gap (204) between the first seat wall and the second seat wall. The cutting board has a bottom surface (501) and a rib (502) extending downward from the bottom surface. The rib (502) is located in the first gap (204). A pin (700) passes laterally through the first seat wall (202), the rib (502) and the second seat wall (203) to replaceably mount the cutting board on the seat. The bottom surface (501) of the cutting board is located on the upper side of the first seat wall (202) and the second seat wall (203).

3. The multifunctional scissors according to claim 2, characterized in that: The bottom surface (501) of the cutting board is located on the top surface (205) of the first wall and the second wall; the two sides (503) of the rib are respectively attached to the inner side of the corresponding first wall (202) and the inner side of the second wall (203).

4. The multifunctional scissors according to any one of claims 1-3, characterized in that: The functional differences of the cutting boards are reflected in the differences in the shape of their supporting parts (504).

5. The multifunctional scissors according to claim 4, characterized in that: one of them The supporting part (504) of the cutting board is a plane, and an angle positioning member (600) that can rotate about an axis (601) perpendicular to the plane is provided on the cutting board. The angle positioning member (600) has a positioning part (602) protruding from the plane. The angle positioning member (600) is positioned on the cutting board by a positioning structure. The plane is distributed with scales (505) indicating the position of the angle positioning member (600).

6. The multifunctional scissors according to claim 5, characterized in that: The positioning structure consists of several opposing first grooves (506) and second grooves (603) respectively disposed on the anvil and the angle positioning member and radially distributed around the axis (601). The first grooves and the second grooves interlock with each other to position the angle positioning member on the anvil.

7. The multifunctional scissors according to claim 6, characterized in that: The cutting board has a through hole (507), and the angle positioning member (600) has a first screw (604) which passes through the through hole (507). A first nut (605) is connected to the first screw (604) to constrain the angle positioning member on the cutting board.

8. The multifunctional scissors according to claim 7, characterized in that: A first elastic element (606) is fitted onto the first screw (604). The first elastic element (606) applies a spring force to the first screw (604) to make the first tooth groove (506) and the second tooth groove (603) mesh with each other. Overcoming the spring force of the first elastic element (606) causes the first screw (604) to move along its axis in the through hole (507) and the first tooth groove (506) and the second tooth groove (603) to disengage.

9. The multifunctional scissors according to claim 5, characterized in that: The middle part of the positioning part (602) is broken into a notch (608). When the first and second handles are brought together, the blade (400) moves closer to the anvil through the notch (608) to cut the workpiece.

10. The multifunctional scissors according to claim 1, characterized in that: The blade (400) has a mounting hole (402) at the rear and a rearward slot (403) at the rear end. The first shank (100) has a pin (101). The pivot (300) passes laterally through the mounting hole (402) of the first shank (100), the second shank (200) and the blade. The pin (101) is engaged in the slot (403).

11. The multifunctional scissors according to claim 10, characterized in that: The first handle (100) and the second handle (200) are partially connected by a bushing (302), and the pivot (300) passes through the bushing (302).

12. The multifunctional scissors according to claim 11, characterized in that: The first shank (100) has a first sidewall (102) and a second sidewall (103) spaced apart, and a second gap (104) between the first sidewall and the second sidewall. The second shank (200) has a third sidewall (206) and a fourth sidewall (207), and a third gap (208) between the third sidewall and the fourth sidewall. The first shank (100) passes through the third gap (208) and crosses with the second shank (200). The rear end of the blade (400) is located in the second gap (104). Adjacent first sidewalls (102) and third sidewalls (206) or / and adjacent second sidewalls and fourth sidewalls are connected by bushings (302).

13. The multifunctional scissors according to any one of claims 10-12, characterized in that: The pivot (300) is a second screw, which is connected to a fixed second nut (301) to maintain the assembly relationship between the second screw and the first and second handles.

14. The multifunctional scissors according to claim 1, characterized in that: A second elastic element (800) is supported between the first handle (100) and the second handle (200), and the elastic force of the second elastic element (800) causes the first handle and the second handle to separate.

15. The multifunctional scissors according to claim 14, characterized in that: The first handle (100) and the second handle (200) are provided with a blocking part (209) and a movable blocking member (105) respectively. When the first handle and the second handle are brought together, the blocking member (105) can be moved to a position that abuts against the blocking part (209) to prevent the first handle from separating from the second handle, or it can be moved to a position that does not abut against the blocking part to allow the first handle to separate from the second handle.

16. The multifunctional scissors according to claim 14 or 15, characterized in that: The first handle (100) or the second handle (200) is provided with a limiting pin (210). When the first handle and the second handle are separated, the second handle and the first handle are blocked by the limiting pin (210) to limit the extent of separation between the first handle and the second handle.

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