Scissors

Abstract

The utility model relates to the technical field of shearing tools, in particular to scissors which comprise a scissor body and a protective shell, the scissor body comprises a first scissor blade, a second scissor blade and a mounting portion, the first scissor blade and the second scissor blade are hinged through a hinge shaft, and the mounting portion is fixedly connected with the first scissor blade. The second shear blade can rotate around the axis of the hinge shaft relative to the mounting part; the protective shell is connected with the mounting part and is provided with an opening side; at the first station, the blade parts of the first shear blade and the second shear blade can be folded in the protective shell; in the second station, the blade parts of the first shear blade and the second shear blade can be located outside the protective shell, a gap is formed between the blade part of the first shear blade and the opening side, and when the second shear blade rotates around the hinge shaft, the blade part of the second shear blade can rotate into the protective shell, so that an object to be sheared is located between the blade parts of the first shear blade and the second shear blade, the safety is improved, and the working efficiency is improved. Moreover, the size is reduced, and the sight is not shielded.

Description

Technical Field

[0001] The present disclosure relates to the technical field of shearing tools, and in particular to a pair of scissors. Background Art

[0002] Scissors are a common tool in people's daily life, mainly used to cut paper, cloth, rope and other sheet or linear objects. Take children's scissors as an example. Children's scissors are a kind of scissors designed for beginner children. This kind of scissors is simple and easy to use, and has high safety requirements to avoid accidental injury to children.

[0003] In the related art, in order to improve the safety of children's scissors, there are mainly two methods: one is to replace the stainless steel blades with plastic blades, which will significantly reduce the sharpness, hardness and durability of the blades, and the risk of injury still exists. The other is to use a protective shell to wrap the rotor blades and stator blades at the same time. The rotor blades and stator blades are both active in the protective shell, leaving only a narrow opening in the middle of the protective shell. This type of scissors is large in size and not easy to carry. Moreover, when the object to be cut (such as paper) is placed in the narrow opening, the protective shell above the object to be cut will block the line of sight, which is very inconvenient to use. Utility Model Content

[0004] The purpose of the present invention is to provide a pair of scissors, which can reduce the overall size of the scissors and reduce the obstruction of the line of sight while improving safety.

[0005] Based on the above purpose, the present disclosure provides a pair of scissors, comprising a scissors body and a protective shell, wherein the scissors body comprises a first shearing piece, a second shearing piece and a mounting portion, wherein the first shearing piece and the second shearing piece are hinged via a hinge shaft, the mounting portion is fixedly connected to the first shearing piece, and the second shearing piece can rotate relative to the mounting portion around the axis of the hinge shaft;

[0006] The protective shell is connected to the mounting portion, and the protective shell has an open side; the protective shell has a first station and a second station, and at the first station, the blades of the first shear and the second shear can be retracted into the protective shell; at the second station, the blades of the first shear and the second shear can both be located outside the protective shell, wherein a gap is formed between the blade of the first shear and the open side for placing an object to be sheared, and when the second shear rotates around the axis of the hinge shaft in a direction away from the first shear, the blade of the second shear can be rotated into the protective shell so that the object to be sheared is located between the blades of the first shear and the second shear.

[0007] In one embodiment of the present disclosure, the mounting portion is provided with a positioning portion, and the protective shell is provided with a positioning matching portion, and the positioning matching portion can cooperate with the positioning portion to enable the protective shell to switch between the first station and the second station.

[0008] In one embodiment of the present disclosure, one of the positioning portion and the positioning matching portion is a protrusion, and the other is a groove;

[0009] The protrusion includes a first sub-protrusion and a second sub-protrusion. At the first work station, the first sub-protrusion is limited to the groove, and at the second work station, the second sub-protrusion is limited to the groove; or, the groove includes a first sub-groove and a second sub-groove. At the first work station, the protrusion is limited to the first sub-groove, and at the second work station, the protrusion is limited to the second sub-groove.

[0010] In one embodiment of the present disclosure, the mounting portion includes a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are connected via the hinge shaft, and the first mounting portion and the second mounting portion have the same structure; the first mounting portion is fixedly connected to the first shear piece, and the second mounting portion is rotatably connected to the second shear piece.

[0011] In one embodiment of the present disclosure, the protective shell includes a first plate portion, a second plate portion and a side wall, the side wall is connected to one side of the first plate portion and the second plate portion, and the other side of the first plate portion and the second plate portion forms the opening side;

[0012] The positioning matching portion is arranged on the first plate portion, and / or the positioning matching portion is arranged on the second plate portion.

[0013] In one embodiment of the present disclosure, the mounting portion includes a first mounting portion and a second mounting portion, the second mounting portion is connected to the first mounting portion via the hinge shaft; the first mounting portion is fixedly connected to the first shearing piece, and the second mounting portion is rotatably connected to the second shearing piece;

[0014] The positioning and matching portion is arranged on the first plate portion, and the positioning portion is arranged on the first mounting portion; and / or the positioning and matching portion is arranged on the second plate portion, and the positioning portion is arranged on the second mounting portion.

[0015] In one embodiment of the present disclosure, both the first plate portion and the second plate portion are provided with the positioning matching portion, and the positioning matching portion includes a first sub-groove and a second sub-groove; both the first mounting portion and the second mounting portion are provided with the positioning portion, and the positioning portion is a protrusion.

[0016] In one embodiment of the present disclosure, the first mounting portion includes a first sub-mounting portion and a second sub-mounting portion; the first sub-mounting portion and the second sub-mounting portion are both provided with a through hole for the hinge shaft to pass through; the first shearing piece is provided with a first mounting hole, the first sub-mounting portion is fixedly mounted in the first mounting hole, the second sub-mounting portion is located outside the first mounting hole, and the protrusion is provided on the second sub-mounting portion;

[0017] The first plate portion is provided with a first accommodating groove, the second sub-mounting portion can be limited in the first accommodating groove, and the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the first accommodating groove.

[0018] In one embodiment of the present disclosure, the first accommodating groove includes a straight groove and an arc-shaped groove, the width of the straight groove is smaller than the diameter of the arc-shaped groove; in the first workstation, the center of the arc-shaped groove is located on the axis of the hinge shaft, the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the arc-shaped groove, and the protective shell can rotate around the axis of the hinge shaft to switch between the first workstation and the second workstation.

[0019] In one embodiment of the present disclosure, the second sub-mounting portion has two parallel side edges, and the distance between the two side edges is greater than the width of the straight groove.

[0020] In one embodiment of the present disclosure, the first accommodating groove includes an arc-shaped groove, and at the first workstation, the center of the arc-shaped groove is located on the axis of the hinge shaft; the groove wall of the arc-shaped groove includes an arc-shaped groove wall body and an extension plate, the extension plate is connected to the arc-shaped groove wall body, and the first sub-groove and the second sub-groove are spaced apart from each other on the extension plate.

[0021] In one embodiment of the present disclosure, the number of the extension plates is two, the two extension plates are symmetrically arranged along the symmetry axis of the arc-shaped slot wall body, the first sub-grooves on the two extension plates are centrally symmetrically distributed about the center of the arc-shaped slot, and the second sub-grooves on the two extension plates are centrally symmetrically distributed about the center of the arc-shaped slot;

[0022] The number of the protrusions is two, and the two protrusions are centrally symmetrically distributed about the center of the through hole.

[0023] In one embodiment of the present disclosure, a gap is set between the surface of the extension plate away from the second plate portion and the surface of the first plate portion away from the second plate portion; the second sub-mounting portion includes a first mounting plate and a second mounting plate, the second mounting plate is located between the first mounting plate and the first sub-mounting portion, the first mounting plate is located on the side of the extension plate away from the inner cavity of the protective shell, and the protrusion is set on the second mounting plate.

[0024] In one embodiment of the present disclosure, the second mounting portion includes a third sub-mounting portion and a fourth sub-mounting portion; the second shearing piece is provided with a second mounting hole, the axis of the second mounting hole coincides with the axis of the hinge shaft, and the second shearing piece can rotate around the axis of the hinge shaft relative to the third sub-mounting portion; the fourth sub-mounting portion is located outside the second mounting hole, and the protrusion is provided on the fourth sub-mounting portion;

[0025] The second plate portion is provided with a second receiving groove, the fourth sub-mounting portion can be limited in the second receiving groove, and the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the second receiving groove.

[0026] In one embodiment of the present disclosure, the side wall is provided with an avoidance gap; at the second workstation, the avoidance gap is used to allow the shear back portion of the free end of the second shearing piece to extend out.

[0027] In one embodiment of the present disclosure, the side wall includes a straight wall and an arc-shaped wall, the straight wall and the opening side are respectively located at two ends of the arc-shaped wall, and an angle is formed between the straight wall and the opening side; the center of the arc-shaped wall is located on the axis of the hinge shaft.

[0028] In one embodiment of the present disclosure, at the first workstation, the second shearing blade can be rotated to a set position relative to the first shearing blade, at which the back of the second shearing blade abuts against the straight wall, and the portion of the second shearing blade that does not overlap with the first shearing blade is located within the protective shell.

[0029] In one embodiment of the present disclosure, at the second workstation, the plane where the opening side is located is parallel to the blade of the first shear.

[0030] In one embodiment of the present disclosure, the protective shell is detachably connected to the mounting portion.

[0031] In one embodiment of the present disclosure, the protective shell is transparent.

[0032] The beneficial effects of the present disclosure are mainly:

[0033] The scissors provided by the present disclosure, when it is necessary to embody the protective function, for example, when children use the scissors, the protective shell is placed in the second working position, at this time, the blade of the first blade and the blade of the second blade are both located outside the protective shell in the retracted state, because the mounting portion is fixedly connected to the first blade, the protective shell can be stationary relative to the first blade, and the second blade is operated so that the second blade rotates around the axis of the hinge shaft in the direction away from the first blade, and as the second blade rotates, the blade of the second blade can directly enter the protective shell, at this time, the object to be cut can be placed in the gap formed between the blade of the first blade and the opening side, and the object to be cut can be located between the blades of the first blade and the second blade, so that the object to be cut can be cut without hurting the hands, and at the same time, the first blade is located outside the protective shell, which is convenient for the user to directly observe the position where the blade of the first blade contacts the object to be cut, and the line of sight will not be blocked; when not in use, the first blade and the second blade can be closed, and then the protective shell is placed in the first working position, at this time, the blades of the first blade and the second blade are retracted in the protective shell. Since the first cutting blade and the second cutting blade do not need to be always wrapped in the protective shell, it is helpful to reduce the volume of the protective shell, and further reduce the overall external volume of the scissors. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the structure of the scissors provided in an embodiment of the present disclosure (the protective shell is located at the first station);

[0036] Figure 2 for Figure 1 Local zoom in Figure Ⅰ ;

[0037] Figure 3 A perspective view of the scissors provided for an embodiment of the present disclosure (the protective housing is located in the first working position);

[0038] Figure 4 A schematic diagram of the structure of the scissors provided in an embodiment of the present disclosure (the protective shell is located at the second station);

[0039] Figure 5 A perspective view of the scissors provided for an embodiment of the present disclosure (the protective housing is located in the second station);

[0040] Figure 6 A schematic structural diagram of a first cutting piece in a pair of scissors provided in an embodiment of the present disclosure;

[0041] Figure 7 A schematic diagram of the structure of a first mounting portion in the scissors provided in an embodiment of the present disclosure;

[0042] Figure 8 is an exploded view of the second clip and the second mounting portion in the embodiment of the present disclosure;

[0043] Fig. 9 A schematic diagram of the structure of a protective shell in a pair of scissors provided in an embodiment of the present disclosure;

[0044] Fig.10 Another structural schematic diagram of the scissors provided in the embodiment of the present disclosure (the protective shell is located at the first working position);

[0045] Fig.11 for Fig.10 A schematic diagram showing the protective housing in the scissors is in the first working position;

[0046] Fig.12 Another structural schematic diagram of the scissors provided in the embodiment of the present disclosure (the protective shell is located at the second working position);

[0047] Fig.13 for Fig.12 A schematic diagram showing the protective housing in the scissors is in the first working position;

[0048] Fig.14 for Fig.10 A schematic diagram of the structure of the protective shell in the scissors shown;

[0049] Fig.15 for Fig.14 A schematic diagram of the structure of the protective shell from another perspective is shown;

[0050] Fig.16 for Fig.10 A schematic diagram of the structure of the scissors body in the scissors shown;

[0051] Fig.17 for Fig.10 A schematic structural diagram of a first mounting portion in the scissors shown;

[0052] Fig.18 for Fig.10 A schematic structural diagram of the second mounting portion in the scissors is shown.

[0053] The following are the descriptions of the reference numerals:

[0054] 1-scissors body; 11-first cutting piece; 111-first mounting hole; 12-second cutting piece; 121-second mounting hole; 13a, 13a'-first mounting part; 131a, 131a'-first sub-mounting part; 1311-first arc edge; 1312-first straight edge; 132a, 132a'-second sub-mounting part; 1321a'-first mounting plate; 1322a'-second mounting plate; 1321, 1321'-protrusion; 13b, 13b'-second mounting part; 131b, 131b'-third sub-mounting part; 1 32b, 132b'-fourth sub-mounting part; 1321b'-third mounting plate; 1322b'-fourth mounting plate; 14-hinge axis; 15-handle; 16-gap; 2-protective shell; 21-opening side; 221, 221'-first sub-groove; 222, 222'-second sub-groove; 23-first plate part; 231, 231'-first accommodating groove; 2311'-arc-shaped groove wall body; 2312'-extension plate; 24-second plate part; 251-straight wall; 252-arc-shaped wall; 253-avoidance gap; 26-reinforcement rib plate. DETAILED DESCRIPTION

[0055] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0056] In the description of the present disclosure, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply 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 of the present disclosure. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0058] See also Figures 1 to 18 As shown, this embodiment provides a pair of scissors, including a scissors body 1 and a protective shell 2, the scissors body 1 includes a first cutting piece 11, a second cutting piece 12 and a mounting portion, the first cutting piece 11 and the second cutting piece 12 are hinged by a hinge shaft 14, the mounting portion is fixedly connected to the first cutting piece 11, and the second cutting piece 12 can rotate relative to the mounting portion around the axis of the hinge shaft 14; the protective shell 2 is connected to the mounting portion, and the protective shell 2 has an open side 21; the protective shell 2 has a first station and a second station, in the first station, the blade of the first cutting piece 11 and The blade of the second shearing blade 12 can be retracted into the protective shell 2; in the second workstation, the blade of the first shearing blade 11 and the blade of the second shearing blade 12 can both be located outside the protective shell 2, wherein a gap 16 for placing the object to be sheared is formed between the blade of the first shearing blade 11 and the opening side 21, and when the second shearing blade 12 rotates around the axis of the hinge shaft 14 in a direction away from the first shearing blade 11, the blade of the second shearing blade 12 can be rotated into the protective shell 2 so that the object to be sheared is located between the blades of the first shearing blade 11 and the second shearing blade 12.

[0059] When the scissors provided in this embodiment need to embody the protective function, for example, when a child uses the scissors, the protective shell 2 is placed in the second position. Figure 4 As shown, the blade of the first cutting piece 11 and the blade of the second cutting piece 12 are both located outside the protective shell 2 in the retracted state. Since the mounting portion is fixedly connected to the first cutting piece 11, the protective shell 2 can be stationary relative to the first cutting piece 11. The second cutting piece 12 is operated to make the second cutting piece 12 rotate around the axis of the hinge shaft 14 in the direction away from the first cutting piece 11. As the second cutting piece 12 rotates, the blade of the second cutting piece 12 can directly enter the protective shell 2. At this time, the object to be cut can be placed in the gap 16 formed between the blade of the first cutting piece 11 and the opening side 21. The object to be cut can be located between the blades of the first cutting piece 11 and the second cutting piece 12. In this way, the object to be cut can be cut without hurting the hand. At the same time, the first cutting piece is located outside the protective shell, which is convenient for the user to directly observe the position where the blade of the first cutting piece contacts the object to be cut, and the line of sight will not be blocked. When not in use, the first cutting piece 11 and the second cutting piece 12 can be closed, and then the protective shell 2 is placed in the first working position. At this time, see Figure 1 As shown, the blade of the first cutting blade 11 and the blade of the second cutting blade 12 are retracted in the protective shell 2. Since the first cutting blade and the second cutting blade do not need to be wrapped in the protective shell all the time, it is beneficial to reduce the volume of the protective shell, and then it is beneficial to reduce the overall size of the scissors, which is convenient to carry.

[0060] In one embodiment, the protective shell 2 is detachably connected to the mounting portion. When it is necessary to operate in a small space, for example, when it is necessary to cut a hole in paper, the protective shell 2 can be temporarily removed before use.

[0061] The scissors provided in this embodiment are not only easy to carry and use, but also suitable for a variety of scenarios. For example, when children use the scissors, the protective shell 2 can be placed in the second position to achieve a protective function and improve safety. For another example, when it is necessary to operate in a small space, the protective shell 2 can be temporarily removed and then used. For another example, as children grow up, their own protection awareness increases. At this time, the protective shell 2 can be removed and the scissors body 1 can still continue to be used, thereby improving the utilization rate.

[0062] Exemplarily, the protective shell 2 is detachably connected to the mounting portion by plugging and unplugging.

[0063] It should be understood that the width of the inner cavity of the protective shell 2 may be slightly larger than the maximum thickness of the first cutting piece 11 and the second cutting piece 12 in the retracted state, so as to facilitate the disassembly and assembly of the protective shell 2 .

[0064] In other embodiments, the protective shell 2 and the mounting portion may also be connected together in a non-detachable manner. For example, the protective shell 2 may be riveted together with the hinge shaft.

[0065] In this embodiment, see Figure 1 As shown, the scissors body 1 further includes a handle 15 disposed at the tail of the first cutting piece 11 and the second cutting piece 12. It should be noted that the handle is a prior art, and the structure of the handle is not limited to Figure 1 Style shown.

[0066] It should be understood that, when in use, the second clip 12 rotates relative to the first clip 11 , but the first clip 11 is not completely fixed. When the first clip 11 rotates relative to the second clip 12 , the protective shell 2 rotates together with the first clip 11 .

[0067] In one embodiment, the mounting portion is provided with a positioning portion, and the protective shell 2 is provided with a positioning matching portion, and the positioning matching portion can match with the positioning portion so that the protective shell 2 can be switched between the first station and the second station.

[0068] Through the cooperation between the positioning matching part and the positioning part, it can be ensured that the protective shell 2 can be quickly and accurately switched between the first station and the second station, ensuring that the scissors can be in the storage state or the use state.

[0069] In one embodiment, one of the positioning portion and the positioning matching portion is a protrusion, and the other is a groove; the protrusion includes a first sub-protrusion and a second sub-protrusion, and in the first work station, the first sub-protrusion is limited to the groove, and in the second work station, the second sub-protrusion is limited to the groove; or, the groove includes a first sub-groove and a second sub-groove, and in the first work station, the protrusion is limited to the first sub-groove, and in the second work station, the protrusion is limited to the second sub-groove.

[0070] The positioning part and the positioning matching part may be in the following forms:

[0071] The first form: the positioning portion is a protrusion 1321, and the positioning matching portion is a groove, the groove includes a first sub-groove 221 and a second sub-groove 222. In the first station, the protrusion 1321 is limited to the first sub-groove 221, and in the second station, the protrusion 1321 is limited to the second sub-groove 222.

[0072] The second form: the positioning portion is a protrusion, the protrusion includes a first sub-protrusion and a second sub-protrusion, the positioning matching portion is a groove, in the first station, the first sub-protrusion is limited to the groove, in the second station, the second sub-protrusion is limited to the groove.

[0073] The third form: the positioning portion is a groove, the positioning matching portion is a protrusion, the protrusion includes a first sub-protrusion and a second sub-protrusion, in the first station, the first sub-protrusion is limited to the groove, in the second station, the second sub-protrusion is limited to the groove.

[0074] The fourth form: the positioning portion is a groove, the groove includes a first sub-groove and a second sub-groove, the positioning matching portion is a protrusion, in the first station, the protrusion is limited to the first sub-groove, in the second station, the protrusion is limited to the second sub-groove.

[0075] In one embodiment, the protective shell 2 includes a first plate portion 23, a second plate portion 24 and a side wall, the side wall is connected to one side of the first plate portion 23 and the second plate portion 24, and the other side of the first plate portion 23 and the second plate portion 24 forms an opening side 21; exemplarily, the first plate portion 23 and the second plate portion 24 are parallel, and the distance between the first plate portion 23 and the second plate portion 24 is the width of the inner cavity of the protective shell 2.

[0076] In this embodiment, both the first plate portion and the second plate portion are provided with positioning matching portions.

[0077] Of course, in other embodiments, the positioning and matching portion may be provided only on the first plate portion, or may be provided only on the second plate portion.

[0078] In one embodiment, the mounting portion includes a first mounting portion and a second mounting portion, and the second mounting portion is connected to the first mounting portion via a hinge shaft; illustratively, both the second mounting portion and the first mounting portion are provided with a through hole for the hinge shaft 14 to pass through. The first mounting portion is fixedly connected to the first shearing piece, and the second mounting portion is rotatably connected to the second shearing piece. There are many structural forms of the first mounting portion and the second mounting portion. This embodiment will mainly introduce two structural forms: the first mounting portion 13a and the second mounting portion 13b, and the first mounting portion 13a' and the second mounting portion 13b'.

[0079] The structures of the first mounting portion 13a and the second mounting portion 13b may be the same or different; the structures of the first mounting portion 13a' and the second mounting portion 13b' may be the same or different.

[0080] In this embodiment, both the first plate portion and the second plate portion are provided with positioning matching portions, and both the first mounting portion and the second mounting portion are provided with positioning portions.

[0081] In other embodiments, the positioning matching portion may be arranged on the first plate portion, and the positioning portion may be arranged on the first mounting portion; or the positioning matching portion may be arranged on the second plate portion, and the positioning portion may be arranged on the second mounting portion.

[0082] The following will take the first form of the positioning portion and the positioning matching portion as an example to explain in detail the technical solution of this embodiment.

[0083] Exemplarily, both the first plate portion and the second plate portion are provided with a positioning matching portion, which includes a first sub-groove and a second sub-groove; both the first mounting portion and the second mounting portion are provided with a positioning portion, which is a protrusion.

[0084] In one possible design, see Figure 7 As shown, the mounting portion includes a first mounting portion 13a, the first mounting portion 13a includes a first sub-mounting portion 131a and a second sub-mounting portion 132a, and the through hole passes through the first sub-mounting portion 131a and the second sub-mounting portion 132a; see Figure 6 As shown, the first cutting piece 11 is provided with a first mounting hole 111, the first sub-mounting portion 131a is fixedly mounted on the first mounting hole 111, the second sub-mounting portion 132a is located outside the first mounting hole 111, and the protrusion 1321 is provided on the second sub-mounting portion 132a; see Fig. 9 As shown, the first plate portion 23 is provided with a first receiving groove 231 , the second sub-mounting portion 132 a can be limited in the first receiving groove 231 , and the first sub-groove 221 and the second sub-groove 222 are spaced apart from each other on the groove wall of the first receiving groove 231 .

[0085] Exemplarily, the first sub-mounting portion 131a and the second sub-mounting portion 132a are convex block structures, and the cross-sectional area of ​​the second sub-mounting portion 132a is larger than the cross-sectional area of ​​the first sub-mounting portion 131a. The first sub-mounting portion 131a and the second sub-mounting portion 132a are integrally formed.

[0086] For example, see Figure 6 and Figure 7 As shown, the first sub-mounting portion 131a has two opposite first arc edges 1311 and two opposite first straight edges 1312, the centers of the two first arc edges 1311 coincide, and the two first straight edges 1312 are parallel. The shape of the first mounting hole 111 is the same as that of the first sub-mounting portion 131a, and the first sub-mounting portion 131a is limitedly mounted in the first mounting hole 111, so that the first mounting portion 13a and the first shear 11 are relatively stationary.

[0087] The protrusion 1321 is arranged on the circumferential outer surface of the second sub-mounting portion 132a, and the protective shell 2 is mounted on the closed first shearing piece 11 and the second shearing piece 12, and the second sub-mounting portion 132a is limited in the first receiving groove 231. In the first station, the protrusion 1321 is limited in the first sub-groove 221, and in the second station, the protrusion 1321 is limited in the second sub-groove 222.

[0088] In this possible design, see Figure 2 As shown, the first accommodating groove 231 includes a straight groove and an arc groove, the width of the straight groove is smaller than the diameter of the arc groove; in the first station, the center of the arc groove is located on the axis of the hinge shaft 14, the first sub-groove 221 and the second sub-groove 222 are spaced apart on the groove wall of the arc groove, and the protective shell 2 can rotate around the axis of the hinge shaft 14 to switch between the first station and the second station.

[0089] Exemplarily, the second sub-mounting portion 132a has two opposite second arc edges and two opposite second straight edges, the centers of the two second arc edges coincide, and the two second straight edges are parallel. The centers of the second arc edge and the first arc edge 1311 are both located on the axis of the hinge shaft 14. In the first position, the center of the arc groove is located on the axis of the hinge shaft 14, and the protrusion 1321 is limited to the first sub-groove 221. At this time, the scissors are in the storage state; see Figure 4 As shown, when it is needed, the protective shell 2 can be directly rotated to the second position so that the protrusion 1321 is limited to the second sub-slot 222. At this time, the blade of the first shearing piece 11 and the blade of the second shearing piece 12 are both located outside the protective shell 2 in the retracted state. The second shearing piece 12 is operated so that the second shearing piece 12 rotates around the axis of the hinge shaft 14 in a direction away from the first shearing piece 11. As the second shearing piece 12 rotates, the blade of the second shearing piece 12 can directly enter the protective shell 2. At this time, see Figure 5 As shown, the object to be sheared can be placed in the gap 16 formed between the blade of the first shearing blade 11 and the open side 21, and the object to be sheared can be located between the blades of the first shearing blade 11 and the second shearing blade 12, so that the object to be sheared can be sheared without hurting the hands.

[0090] For example, see Figure 5 As shown, when the first cutting piece 11 and the second cutting piece 12 are opened to the maximum angle, the size of the gap 16 is not large enough to allow the user's hand to easily enter between the first cutting piece 11 and the second cutting piece 12, thereby achieving an effective protective effect.

[0091] For young children, the awareness of storage is often weak. By rotating the protective shell to switch between the first position and the second position, there is no need to separate the protective shell from the scissors body, thus avoiding the loss of the protective shell.

[0092] Exemplarily, the interval between the first sub-groove 221 and the second sub-groove 222 can be approximately but not limited to 15°. The circumferential surface of the protrusion 1321 is an arc surface, and the first sub-groove 221 and the second sub-groove 222 are arc-shaped grooves. The parts of the two arc-shaped grooves close to each other are smoothly transitioned, so that the protective shell 2 can be rotated more smoothly.

[0093] It should be noted that the protrusion 1321 can be roughly aligned with the first sub-groove or the second sub-groove, and then the protective shell 2 can be pushed until the second sub-mounting portion 132a is limited in the arc groove. For example, when it is necessary to operate in a small space, the protective shell 2 can be temporarily removed before use. After use, the protrusion can be roughly aligned with the first sub-groove, and then the protective shell 2 can be pushed until the second sub-mounting portion 132a is limited in the arc groove, and the protrusion is limited in the first sub-groove.

[0094] In this possible design, see Figure 2 As shown, the distance d between the two parallel second straight sides of the second sub-mounting portion 132a is greater than the width w of the straight groove. When the groove wall of the straight groove is parallel to the second straight side, the protective shell 2 can be plugged in and out. When inserting the protective shell 2, the second sub-mounting portion 132a can open the notch of the straight groove of the protective shell 2, so that the second sub-mounting portion 132a enters the straight groove and then enters the arc groove. When the protrusion 1321 is limited to the first sub-groove 221, the second straight side of the second sub-mounting portion 132a enters the arc groove completely. At this time, the protective shell 2 returns to its original state, and the notch of the straight groove shrinks to the original width w. Since w<d, the protective shell 2 can be prevented from separating from the scissors body 1 under the action of its own gravity.

[0095] In this possible design, see Figure 8 As shown, the mounting portion also includes a second mounting portion 13b, which is provided with a protrusion 1321; the second mounting portion 13b is connected to the first mounting portion 13a through a hinge shaft 14; the second mounting portion 13b includes a third sub-mounting portion 131b and a fourth sub-mounting portion 132b; the second shear 12 is provided with a second mounting hole 121, the axis of the second mounting hole 121 coincides with the axis of the hinge shaft 14, and the second shear 12 can rotate around the axis of the hinge shaft 14 relative to the third sub-mounting portion 131b; the fourth sub-mounting portion 132b is located outside the second mounting hole 121, and the fourth sub-mounting portion 132b is provided with a protrusion 1321; the second plate portion 24 is provided with a second accommodating groove, and the fourth sub-mounting portion 132b can be limited in the second accommodating groove, and the groove wall of the second accommodating groove is also provided with a first sub-groove and a second sub-groove, which correspond to the first sub-groove 221 and the second sub-groove 222 on the first accommodating groove, respectively.

[0096] Exemplarily, the third sub-mounting portion 131b and the fourth sub-mounting portion 132b are convex block structures, and the cross-sectional area of ​​the fourth sub-mounting portion 132b is larger than the cross-sectional area of ​​the third sub-mounting portion 131b. The third sub-mounting portion 131b and the fourth sub-mounting portion 132b are integrally formed.

[0097] The third sub-mounting portion 131b may be a convex block having two opposite arc edges and two opposite straight edges, the centers of the two arc edges coincide with each other, the centers of the two arc edges are located on the axis of the hinge shaft 14, and the two straight edges may be parallel or arranged at an angle. In other embodiments, the third sub-mounting portion 131b may also be a cylinder, the axis of the cylinder coincides with the axis of the hinge shaft 14.

[0098] The second mounting hole 121 is a circular hole, the axis of which coincides with the axis of the hinge shaft 14 ; the third sub-mounting portion 131 b is limitedly mounted in the second mounting hole 121 , so that the second shear 12 can rotate around the axis of the hinge shaft 14 relative to the second mounting portion 13 b.

[0099] The protrusion 1321 is arranged on the circumferential outer surface of the fourth sub-mounting portion 132b, and the protective shell 2 is mounted on the closed first shearing piece 11 and the second shearing piece 12, and the fourth sub-mounting portion 132b is limited to the second receiving groove. In the first station, the protrusion 1321 is limited to the first sub-groove, and in the second station, the protrusion 1321 is limited to the second sub-groove.

[0100] Exemplarily, the first mounting portion 13 a and the second mounting portion 13 b have the same structure; the first mounting portion 13 a is fixedly connected to the first shearing piece 11 , and the second mounting portion 13 b is rotatably connected to the second shearing piece 12 .

[0101] The hinge shaft 14 may be a rivet, which passes through the first mounting portion 13a and the second mounting portion 13b and connects the first mounting portion 13a and the second mounting portion 13b together.

[0102] The first mounting hole 111 on the first cutting piece 11 is used to limit the rotation of the first mounting portion 13a, and the second mounting hole 121 on the second cutting piece 12 is a circular hole for enabling the second cutting piece 12 to rotate relative to the second mounting portion 13b around the axis of the circular hole.

[0103] The first mounting portion 13a and the second mounting portion 13b have the same structure, which facilitates production and processing. For example, the first mounting portion 13a and the second mounting portion 13b can be made of plastic. Through injection molding, only one set of molds is needed during production and processing. During assembly, there is no need to distinguish between the first mounting portion 13a and the second mounting portion 13b, thereby improving assembly efficiency.

[0104] Exemplarily, the structure of the first sub-mounting portion 131 a is the same as the structure of the third sub-mounting portion 131 b , and the structure of the second sub-mounting portion 132 a is the same as the structure of the fourth sub-mounting portion 132 b .

[0105] It should be noted that the structure of the first mounting portion 13a is not limited to Figure 7 The structure shown in the figure, the structure of the second mounting portion 13b is not limited to Figure 8 The structure shown in the figure may also be in other structural forms, as long as it can achieve the function of facilitating production, assembly and use.

[0106] Of course, the structures of the first mounting portion and the second mounting portion may also be different.

[0107] In another possible design, the first mounting portion 13a' includes a first sub-mounting portion 131a' and a second sub-mounting portion 132a'; the first sub-mounting portion and the second sub-mounting portion are both provided with a through hole for the hinge shaft to pass through; the first shear is provided with a first mounting hole, the first sub-mounting portion is fixedly mounted on the first mounting hole, the second sub-mounting portion is located outside the first mounting hole, and the protrusion 1321' is provided on the second sub-mounting portion; the first plate portion is provided with a first accommodating groove 231', the second sub-mounting portion can be limited in the first accommodating groove 231', and the first sub-groove 221' and the second sub-groove 222' are spaced apart from each other on the groove wall of the first accommodating groove 231'.

[0108] The first accommodating groove 231' includes an arc-shaped groove. In the first workstation, the center of the arc-shaped groove is located on the axis of the hinge shaft, so as to facilitate the rotation of the protective shell relative to the hinge shaft, thereby switching between the first workstation and the second workstation; the groove wall of the arc-shaped groove includes an arc-shaped groove wall body 2311' and an extension plate 2312', the extension plate 2312' is connected to the arc-shaped groove wall body 2311', and the first sub-groove 221' and the second sub-groove 222' are spaced apart from the extension plate 2312'.

[0109] Exemplarily, the extension plate 2312 ′ and the arc-shaped groove wall body 2311 ′ are integrally formed, for example, by injection molding.

[0110] In another possible design, the cross-sectional shape of the first sub-groove 221' and the second sub-groove 222' is triangular, and the two groove walls of the first sub-groove 221' and the two groove walls of the second sub-groove 222' are smoothly transitioned. The smooth transition between the two groove walls adjacent to each other of the first sub-groove 221' and the second sub-groove 222' enables smoother rotation of the protective shell.

[0111] The positions of the bottoms of the first sub-groove 221' and the second sub-groove 222' are equidistant from the center of the accommodating groove, that is, along the direction from the groove mouth to the groove bottom, the lowest points of the bottoms of the first sub-groove 221' and the second sub-groove 222' are located on the same arc with the center of the arc groove as the center.

[0112] In some embodiments, see Fig.15 As shown, a reinforcing rib plate 26 is provided on the surfaces of the first plate portion and the second plate portion close to each other. Exemplarily, the reinforcing rib plate 26 is integrally formed with the first plate portion. Taking the reinforcing rib plate 26 and the extension plate 2312' provided on the first plate portion 23 as an example, the reinforcing rib plate 26 and the extension plate 2312' are coplanar with the surface close to the second plate portion 24.

[0113] The distance between the reinforcing ribs 26 on both sides is smaller than the distance between the first plate portion and the second plate portion, which can achieve a clamping effect on the scissors body to a certain extent.

[0114] In some embodiments, the arc-shaped groove is formed with a flared portion to facilitate insertion and removal of the protective shell.

[0115] In another possible design, the number of extension plates 2312' is two, and the two extension plates 2312' are symmetrically arranged along the symmetry axis of the arc-shaped groove wall body 2311', the first sub-grooves 221' on the two extension plates 2312' are centrally symmetrically distributed about the center of the arc-shaped groove, and the second sub-grooves 222' on the two extension plates 2312' are centrally symmetrically distributed about the center of the arc-shaped groove; the number of protrusions 1321' is two, and the two protrusions 1321' are centrally symmetrically distributed about the center of the through hole.

[0116] For example, the arcuate groove wall body 2311' may be a symmetrical structure, and its symmetry axis may be the diameter of the arcuate groove body, which divides the arcuate groove wall body 2311' into two parts of equal arc length. The two extension plates 2312' are symmetrically arranged along the symmetry axis of the arcuate groove wall body 2311'.

[0117] For example, see Fig.13 As shown, the center of the arc groove can be the intersection of two dot-dash lines.

[0118] Since the first sub-grooves 221' on the two extension plates 2312' are centrally symmetrically distributed about the center of the arc groove, the second sub-grooves 222' on the two extension plates 2312' are centrally symmetrically distributed about the center of the arc groove, and the two protrusions 1321' are centrally symmetrically distributed about the center of the through hole, the protective shell 2 can be directly switched between the first station and the second station by rotating the protective shell; when the protective shell 2 is in the first station, the two protrusions 1321' are respectively limited in the two first sub-grooves 221', and when the protective shell 2 is in the second station, the two protrusions 1321' are respectively limited in the two second sub-grooves 222', which can enhance stability, reduce the risk of loosening of the protective shell, and further improve safety during use.

[0119] In another possible design, a gap is provided between the surface of the extension plate 2312' away from the second plate portion 24 and the surface of the first plate portion 23 away from the second plate portion; see Fig.17 As shown, the second sub-mounting portion 132a' includes a first mounting plate 1321a' and a second mounting plate 1322a', the second mounting plate 1322a' is located between the first mounting plate 1321a' and the first sub-mounting portion 131a', the first mounting plate 1321a' is located on the side of the extension plate away from the inner cavity of the protective shell, and the protrusion 1321' is arranged on the second mounting plate 1322a'.

[0120] Specifically, see Fig.15 As shown, a gap is set between the surface of the extension plate 2312' away from the second plate portion 24 and the surface of the first plate portion 23 away from the second plate portion 24 to form an escape space. After the protective shell is installed with the mounting portion, the first mounting plate 1321a' is located on the side of the extension plate 2312' away from the inner cavity of the protective shell, and the part of the first mounting plate 1321a' corresponding to the extension plate 2312' is located in the escape space, and the extension plate 2312' and the second mounting plate 1322a' are blocked by the first mounting plate 1321a'. The positioning portion and the positioning matching portion are hidden in the outer contour of the first mounting portion 13a'. From the outside, the circular outer contour of the mounting portion is matched with the arc-shaped groove wall body 2311', and the gap between the two is smaller, and the appearance is more simple and beautiful.

[0121] Exemplarily, the shape of the first mounting plate 1321a' is circular, and the circular outer contour of the first mounting plate 1321a' is the circular outer contour of the first mounting portion 13a'.

[0122] In another possible design, the second mounting portion 13b' includes a third sub-mounting portion 131b' and a fourth sub-mounting portion 132b'; the second shear 12 is provided with a second mounting hole 121, the axis of the second mounting hole coincides with the axis of the hinge shaft, and the second shear can rotate around the axis of the hinge shaft relative to the third sub-mounting portion 131b'; the fourth sub-mounting portion 132b' is located outside the second mounting hole, and the protrusion 1321' is provided on the fourth sub-mounting portion 132b'; the second plate portion is provided with a second accommodating groove, and the fourth sub-mounting portion 132b' can be limited in the second accommodating groove, and the first sub-groove 221' and the second sub-groove 222' are spaced apart from each other on the groove wall of the second accommodating groove.

[0123] Exemplarily, the projection of the circular outer contour of the second mounting portion 13b' in the setting plane coincides with the projection of the circular outer contour of the first mounting portion 13a' in the setting plane, wherein the setting plane is perpendicular to the axis of the hinge shaft.

[0124] In this other possible design, see Fig.17 and Fig.18 As shown, the fourth sub-mounting portion 132b' includes a third mounting plate 1321b' and a fourth mounting plate 1322b', and the protrusion 1321' is arranged on the fourth mounting plate 1322b'. Exemplarily, the outline of the fourth mounting plate 1322b' and the outline of the second mounting plate 1322a' can be a central symmetrical figure. During assembly, there is no need to distinguish between the first mounting portion 13a' and the second mounting portion 13b', thereby improving assembly efficiency.

[0125] In another possible design, the protective shell is provided with a first identification portion, and the mounting portion is provided with a second identification portion and a third identification portion. When the first identification portion is aligned with the second identification portion, the protective shell is in the first position, and when the first identification portion is aligned with the second identification portion, the protective shell is in the second position.

[0126] Exemplarily, the first identification portion is disposed on the second plate portion 24, and the second identification portion and the third identification portion are disposed on the third mounting plate 1321b'.

[0127] Exemplarily, the first identification portion and the second identification portion may be triangular patterns, and the third identification portion may be a circular pattern. Of course, the forms of the first identification portion, the second identification portion and the third identification portion are not limited to the above forms.

[0128] It should be understood that Figure 1 The scissors shown may also be provided with corresponding identification parts on the protective shell and the mounting part.

[0129] In one embodiment, see Figure 5 and Fig. 9As shown, the side wall is provided with an escape notch 253; at the second work station, the escape notch 253 is used to allow the shear back portion of the free end of the second shearing piece 12 to extend out.

[0130] In the second station, the second cutting piece 12 and the first cutting piece 11 are in an open state. In order to ensure that the second cutting piece 12 can rotate as far as possible relative to the first cutting piece 11, the internal space of the protective shell 2 needs to be increased to provide sufficient rotation space for the second cutting piece 12. At the same time, it is necessary to consider that the overall volume of the scissors should not be too large, which requires minimizing the volume of the protective shell 2. Therefore, in this embodiment, an avoidance notch 253 is provided on the side wall, which not only ensures that the second cutting piece 12 can rotate as far as possible relative to the first cutting piece 11, but also reduces the external dimensions of the protective shell 2. At the same time, since the portion exposed outside the avoidance notch 253 is only the back of the free end of the second cutting piece 12, the user will not be accidentally injured.

[0131] In one embodiment, see Fig. 9 As shown, the side wall includes a straight wall 251 and an arcuate wall 252 . The straight wall 251 and the opening side 21 are respectively located at two ends of the arcuate wall 252 , and an angle is formed between the straight wall 251 and the opening side 21 . The center of the arcuate wall 252 is located on the axis of the hinge shaft 14 .

[0132] Exemplarily, the contour of the arc wall 252 is consistent with the motion trajectory of the free end of the second shearing piece 12. At the second station, when operating the second shearing piece 12, the free end of the second shearing piece 12 will not interfere with the arc wall 252 of the protective shell 2, ensuring that the scissors can be used normally and smoothly.

[0133] In this embodiment, the straight wall 251 and the arc-shaped wall 252 are arranged at intervals to form an avoidance gap 253. In other embodiments, the straight wall 251 and the arc-shaped wall 252 may also be arranged continuously.

[0134] The straight wall 251 and the opening side 21 are arranged at an angle, so that the outer volume of the protective shell 2 can be reduced as much as possible while ensuring the protective function.

[0135] It should be understood that the straight wall 251 may also be a slightly curved side wall, such as Fig.13 shown.

[0136] See also Figure 5 As shown, at the second station, when the shear back of the second shearing piece 12 contacts the inner surface of the straight wall 251, the second shearing piece 12 stops rotating. At this time, the angle of the scissors body opening is the largest.

[0137] In one embodiment, see Figure 3As shown, at the first station, the second shearing piece 12 can rotate to a set position relative to the first shearing piece 11. At the set position, the shear back of the second shearing piece 12 abuts against the straight wall 251, and the non-overlapping portion of the second shearing piece 12 and the first shearing piece 11 is located in the protective shell 2.

[0138] It should be understood that the non-overlapping portion of the second clip 12 and the first clip 11 means that the second clip 12 is rotated at a certain angle relative to the first clip 11, so that the first clip 11 and the second clip 12 are opened at a certain angle, and a portion of the blade of the first clip 11 and the blade of the second clip 12 will not overlap. If the hand enters this non-overlapping area, there will be a risk of accidental injury.

[0139] When the scissors are in the storage state, the user usually does not operate the scissors body 1, and there is no risk of accidental injury. However, due to some reasons (such as the user's curiosity or the scissors body is loose, etc.), the back of the second cutting piece 12 abuts against the straight wall 251. At this time, see Figure 3 As shown, since the non-overlapping portion of the second cutting piece 12 and the first cutting piece 11 is located in the protective shell 2, it can still play a protective role. Therefore, the scissors provided in this embodiment have high safety in both the storage state and the use state.

[0140] It should be understood that when the first clip and the second clip are stored in the protective shell in a folded state, a small portion of them may be exposed outside the protective shell, so that the volume of the protective shell can be reduced as much as possible.

[0141] In one embodiment, at the second station, see Figure 5 As shown, the plane where the opening side 21 is located is parallel to the blade of the first shearing blade 11. This facilitates placing the object to be sheared in the gap 16 between the opening side 21 and the blade of the first shearing blade 11. For example, when the object to be sheared is paper, the plane where the opening side 21 is located can support the paper.

[0142] Of course, the plane where the opening side 21 is located may also be partially parallel to the blade of the first shear 11. Exemplarily, the opening side 21 includes a parallel section and an inclined section. In the second station, the parallel section is close to the hinge axis 14, and the inclined section is far away from the hinge axis 14. The parallel section is parallel to the blade of the first shear 11, and the inclined section is set at an angle to the parallel section. The angle formed between the inclined section and the blade of the first shear 11 may be an acute angle. As long as it can be ensured that when the protective shell is in the first station, the blade of the first shear 11 and the blade of the second shear 12 can be retracted in the protective shell 2 and play a protective role, and the protective shell can also play a protective role when it is in the second station, it will be sufficient. Exemplarily, the angle formed between the inclined section and the parallel section is an obtuse angle, which can further reduce the volume of the protective shell, thereby reducing the overall external volume of the scissors.

[0143] In one embodiment, the protective shell 2 is transparent, which is convenient for observation and does not block the sight, thereby ensuring the cutting effect.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A pair of scissors, characterized in that: The scissors include a scissors body and a protective shell, wherein the scissors body includes a first shearing piece, a second shearing piece and a mounting portion, wherein the first shearing piece and the second shearing piece are hingedly connected via a hinge shaft, the mounting portion is fixedly connected to the first shearing piece, and the second shearing piece can rotate relative to the mounting portion around the axis of the hinge shaft; The protective shell is connected to the mounting portion, and the protective shell has an open side; the protective shell has a first station and a second station, and at the first station, the blades of the first shear and the second shear can be retracted into the protective shell; at the second station, the blades of the first shear and the second shear can both be located outside the protective shell, wherein a gap is formed between the blade of the first shear and the open side for placing an object to be sheared, and when the second shear rotates around the axis of the hinge shaft in a direction away from the first shear, the blade of the second shear can be rotated into the protective shell so that the object to be sheared is located between the blades of the first shear and the second shear.

2. The scissors according to claim 1, characterized in that: The mounting portion is provided with a positioning portion, and the protective shell is provided with a positioning matching portion, and the positioning matching portion can be matched with the positioning portion so that the protective shell can be switched between the first station and the second station.

3. The scissors according to claim 2, characterized in that: One of the positioning portion and the positioning matching portion is a protrusion, and the other is a groove; The protrusion includes a first sub-protrusion and a second sub-protrusion. At the first work station, the first sub-protrusion is limited to the groove, and at the second work station, the second sub-protrusion is limited to the groove; or, the groove includes a first sub-groove and a second sub-groove. At the first work station, the protrusion is limited to the first sub-groove, and at the second work station, the protrusion is limited to the second sub-groove.

4. The scissors according to claim 1, characterized in that: The mounting portion includes a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are connected via the hinge shaft, and the first mounting portion and the second mounting portion have the same structure; the first mounting portion is fixedly connected to the first shearing piece, and the second mounting portion is rotatably connected to the second shearing piece.

5. The scissors according to claim 3, characterized in that: The protective shell includes a first plate portion, a second plate portion and a side wall, wherein the side wall is connected to one side of the first plate portion and the second plate portion, and the other side of the first plate portion and the second plate portion forms the opening side; The positioning matching portion is arranged on the first plate portion, and / or the positioning matching portion is arranged on the second plate portion.

6. The scissors according to claim 5, characterized in that: The mounting portion includes a first mounting portion and a second mounting portion, wherein the second mounting portion is connected to the first mounting portion via the hinge shaft; the first mounting portion is fixedly connected to the first shearing piece, and the second mounting portion is rotatably connected to the second shearing piece; The positioning and matching portion is arranged on the first plate portion, and the positioning portion is arranged on the first mounting portion; and / or the positioning and matching portion is arranged on the second plate portion, and the positioning portion is arranged on the second mounting portion.

7. The scissors according to claim 6, characterized in that: The first plate portion and the second plate portion are both provided with the positioning matching portion, and the positioning matching portion includes a first sub-groove and a second sub-groove; the first mounting portion and the second mounting portion are both provided with the positioning portion, and the positioning portion is a protrusion.

8. The scissors according to claim 7, characterized in that: The first mounting portion includes a first sub-mounting portion and a second sub-mounting portion; the first sub-mounting portion and the second sub-mounting portion are both provided with a through hole for the hinge shaft to pass through; the first shearing piece is provided with a first mounting hole, the first sub-mounting portion is fixedly mounted on the first mounting hole, the second sub-mounting portion is located outside the first mounting hole, and the protrusion is provided on the second sub-mounting portion; The first plate portion is provided with a first accommodating groove, the second sub-mounting portion can be limited in the first accommodating groove, and the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the first accommodating groove.

9. The scissors according to claim 8, characterized in that: The first accommodating groove includes a straight groove and an arc-shaped groove, the width of the straight groove is smaller than the diameter of the arc-shaped groove; in the first workstation, the center of the arc-shaped groove is located on the axis of the hinge shaft, the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the arc-shaped groove, and the protective shell can rotate around the axis of the hinge shaft to switch between the first workstation and the second workstation.

10. The scissors according to claim 9, characterized in that: The second sub-mounting portion has two parallel side edges, and the distance between the two side edges is greater than the width of the straight groove.

11. The scissors according to claim 8, characterized in that: The first accommodating groove includes an arc-shaped groove. At the first workstation, the center of the arc-shaped groove is located on the axis of the hinge shaft; the groove wall of the arc-shaped groove includes an arc-shaped groove wall body and an extension plate, the extension plate is connected to the arc-shaped groove wall body, and the first sub-groove and the second sub-groove are spaced apart from each other on the extension plate.

12. The scissors according to claim 11, characterized in that: The number of the extension plates is two, and the two extension plates are symmetrically arranged along the symmetry axis of the arc-shaped groove wall body, the first sub-grooves on the two extension plates are centrally symmetrically distributed about the center of the arc-shaped groove, and the second sub-grooves on the two extension plates are centrally symmetrically distributed about the center of the arc-shaped groove; The number of the protrusions is two, and the two protrusions are centrally symmetrically distributed about the center of the through hole.

13. The scissors according to claim 12, characterized in that: A gap is set between the surface of the extension plate away from the second plate portion and the surface of the first plate portion away from the second plate portion; the second sub-mounting portion includes a first mounting plate and a second mounting plate, the second mounting plate is located between the first mounting plate and the first sub-mounting portion, the first mounting plate is located on the side of the extension plate away from the inner cavity of the protective shell, and the protrusion is set on the second mounting plate.

14. The scissors according to claim 7, characterized in that: The second mounting portion includes a third sub-mounting portion and a fourth sub-mounting portion; the second shearing piece is provided with a second mounting hole, the axis of the second mounting hole coincides with the axis of the hinge shaft, and the second shearing piece can rotate around the axis of the hinge shaft relative to the third sub-mounting portion; the fourth sub-mounting portion is located outside the second mounting hole, and the protrusion is provided on the fourth sub-mounting portion; The second plate portion is provided with a second receiving groove, the fourth sub-mounting portion can be limited in the second receiving groove, and the first sub-groove and the second sub-groove are spaced apart from each other on the groove wall of the second receiving groove.

15. The scissors according to claim 5, characterized in that: The side wall is provided with an avoidance gap; at the second work station, the avoidance gap is used to allow the shear back portion of the free end of the second shearing piece to extend out.

16. The scissors according to claim 5, characterized in that: The side wall includes a straight wall and an arc-shaped wall. The straight wall and the opening side are respectively located at two ends of the arc-shaped wall. The straight wall and the opening side are arranged at an angle. The center of the arc-shaped wall is located on the axis of the hinge shaft.

17. The scissors according to claim 16, characterized in that: At the first station, the second shearing piece can be rotated to a set position relative to the first shearing piece. At the set position, the back of the second shearing piece abuts against the straight wall, and the part of the second shearing piece that does not overlap with the first shearing piece is located in the protective shell.

18. The scissors according to any one of claims 1 to 17, characterized in that At the second station, the plane where the opening side is located is parallel to the blade of the first shear.

19. The scissors according to any one of claims 1 to 17, characterized in that The protective shell is detachably connected to the mounting portion.

20. The scissors according to any one of claims 1 to 17, characterized in that The protective shell is transparent.

Images