A scissors

Abstract

The present application discloses a scissors, which comprises: a scissors head assembly, provided at least two, the scissors head assembly comprises a scissors seat and two scissors blades, the at least two scissors head assemblies have different types of scissors blades, and one end of the two scissors blades is connected to the scissors seat; a connecting seat, provided at least two and corresponding to the scissors head assembly one by one, one end of the connecting seat is hinged to each other, and the other end of the connecting seat is connected to the scissors seat of the corresponding scissors head assembly; a handle, provided two, one end of the two handles is hinged to each other and the hinge axis is coaxial with the hinge axis between the connecting seat; the scissors seat has a first connecting position and a second connecting position on the connecting seat; when the scissors seat of the scissors head assembly is in the first connecting position, the two handles can be linked to the two scissors blades; when the scissors seat of the scissors head assembly is in the second connecting position, the two handles are disconnected from the two scissors blades. The above-mentioned scissors has more than one type of scissors blade and can switch to use different types of scissors according to needs.

Description

Technical Field

[0001] This invention relates to gardening supplies, and more particularly to a pair of scissors. Background Technology

[0002] In gardening, pruning shears are frequently used to trim plants. Plant pruning needs are diverse, including leaf trimming and branch trimming, which typically require different types of shears. This forces gardeners to carry various types of shears, making gardening inconvenient. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a pair of scissors having more than one type of scissor blades and the ability to switch between different types of scissors as needed.

[0004] According to an embodiment of the present invention, a pair of scissors includes: at least two scissor head assemblies, each scissor head assembly including a scissor base and two scissor blades, wherein the scissor blades of the at least two scissor head assemblies are of different types, one end of each scissor blade is connected to the scissor base, and the scissor blades are capable of opening and closing, and one end of each scissor blade is provided with a linkage structure; at least two connecting seats are provided, each corresponding to one of the scissor head assemblies, one end of each connecting seat is hinged to the other, and the other end of each connecting seat is connected to the scissor base of the corresponding scissor head assembly; and two handles are provided, one end of each handle is hinged to the other, and the hinge axis is coaxial with the hinge axis between the connecting seats, and one end of each handle is provided with a main linkage structure. The scissor holder has a first connection position and a second connection position on the connecting seat, and the scissor holder can switch between the first connection position and the second connection position. When the scissor holder of the scissor head assembly is in the first connection position, the secondary linkage structure of the two scissor blades of the scissor head assembly is connected one-to-one with the primary linkage structure of the two handles. When the two handles open and close, the two scissor blades can be linked to open and close through the primary linkage structure and the secondary linkage structure. When the scissor holder of the scissor head assembly is in the second connection position, the secondary linkage structure of the two scissor blades is disengaged from the primary linkage structure of the two handles, and the scissor head assembly can rotate relative to the handle through the corresponding connecting seat.

[0005] According to an embodiment of the present invention, a pair of scissors has at least the following beneficial effects: When the scissors are in use, the scissor seat of one scissor head assembly is switched to a first connection position, and the scissor seats of the other scissor head assemblies are switched to a second connection position. The handle, through a main linkage structure and a secondary linkage structure, drives only one scissor head assembly's scissor blades to move in linkage. To switch between scissor head assemblies with different types of scissor blades, first, all scissor head assemblies' scissor seats are held in the second connection position. The desired scissor head assembly is rotated to the opposite side of the two handles, so that the scissor head assembly and the two handles are on opposite sides of the hinge axis of the two handles. Then, the scissor seat of the scissor head assembly is switched to the first connection position, so that the secondary linkage structure of the two scissor blades of the scissor head assembly is connected one-to-one with the main linkage structure of the two handles, thereby realizing the switching of scissor head assemblies. The above-mentioned scissors can switch between different types of scissor head assemblies, have rich functions, and can switch between different scissor head assemblies for different pruning tasks, reducing the number of scissors to be carried and facilitating gardening operations.

[0006] According to some embodiments of the present invention, the scissor seat is detachably connected to the connecting seat.

[0007] According to some embodiments of the present invention, the scissor seat and the connecting seat are mutually inserted and engaged. One of the scissor seat and the connecting seat is provided with a first locking position and a second locking position, while the other is provided with a locking part. The first locking position and the second locking position are arranged along the insertion direction of the scissor seat and the connecting seat mutually inserted and engaged. The locking part is used to engage with the first locking position and the second locking position to prevent the scissor seat and the connecting seat from disengaging from each other. When the locking part is respectively engaged with the first locking position and the second locking position, the scissor seat is respectively in the first connection position and the second connection position. The locking part can disengage from the first locking position and the second locking position so that the scissor seat and the connecting seat can be disassembled.

[0008] According to some embodiments of the present invention, the main linkage structure is a driving gear, and the driven linkage structure is a driven gear; in each scissor head assembly, the two driven gears disposed on the two scissor blades are coaxial with the hinge axis of the two scissor blades, and the scissor blades and the driven gears disposed thereon are rotatable together; the two driving gears disposed on the two handles are coaxial with the hinge axis of the two handles, and the handles and the driving gears disposed thereon are rotatable together; when the scissor seat is in the first connection position, the driven gears and the driving gears mesh, and when the scissor seat is in the second connection position, the driven gears and the driving gears disengage.

[0009] According to some embodiments of the present invention, the handle is provided with a sleeve shaft, the drive gear is provided with a torque transmission hole, the sleeve shaft is provided with a torque transmission section, the torque transmission section is adapted to the shape of the torque transmission hole, the torque transmission hole is a non-circular hole, the torque transmission section is inserted into the torque transmission hole, the sleeve shaft is provided with a hollow circular hole, a main hinge shaft is rotatably passed through the hollow circular hole of the two handles, the sleeve shaft is provided with a cylindrical section, one end of the connecting seat is provided with a circular hole, and the connecting seat is rotatably disposed on the cylindrical section through the circular hole at one end.

[0010] According to some embodiments of the present invention, the handle is provided with a positioning mechanism, and the scissor head assembly in the second connection position can rotate to a position that cooperates with the positioning mechanism. The positioning mechanism is used to position the relative positions of the scissor head assembly and the handle so that the handle can rotate together with the scissor head assembly.

[0011] According to some embodiments of the present invention, each handle is provided with two positioning mechanisms, each positioning mechanism being used to correspond one-to-one with the two scissor blades of the scissor head assembly, and the positioning mechanism being used to position the corresponding scissor blade relative to the handle.

[0012] According to some embodiments of the present invention, three scissor head assemblies are provided, two of which can be positioned with the two handles respectively by the positioning mechanism.

[0013] According to some embodiments of the present invention, the handle is provided with a clearance channel, the clearance channels of the two handles are arranged opposite to each other, and the scissor head assembly can enter the clearance channel and pass through the clearance channels of the two handles.

[0014] According to some embodiments of the present invention, three scissor head assemblies are provided, two of which are respectively accommodated in the clearance channels of the two handles.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention;

[0018] Figure 2 This is an exploded view diagram of an embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the two scissor blades and two handles opened relative to each other according to an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of switching to the second type of scissor head assembly according to an embodiment of the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of switching to the third type of scissor head assembly according to an embodiment of the present invention;

[0022] Figure 6 This is an exploded view of the scissor head assembly according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0024] Figure 8 This is an exploded schematic diagram of the handle according to an embodiment of the present invention.

[0025] Figure label:

[0026] Scissor head assembly 100, scissor base 110, first snap-fit ​​position 111, second snap-fit ​​position 112, plug slot 113, scissor blade 120;

[0027] Connector 200, snap-fit ​​part 210, spring body 211, pressing body 212, snap-fit ​​protrusion 213, insertion part 220;

[0028] Handle 300, sleeve shaft 310, torque transmission section 311, hollow circular hole 312, cylindrical section 313, positioning mechanism 320, clearance channel 330;

[0029] Main hinge shaft 400;

[0030] Driven gear 910, torque transmission hole 911, driven gear 920. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0033] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] Reference Figures 1 to 8 A pair of scissors includes: scissor head assemblies 100, connecting seats 200, and handles 300. Three scissor head assemblies 100 are provided, each including a scissor base 110 and two scissor blades 120. The three scissor head assemblies 100 have different types of scissor blades 120. One end of each scissor blade 120 is connected to the scissor base 110, and the two scissor blades 120 can open and close. One end of each scissor blade 120 is provided with a linkage structure. Three connecting seats 200 are provided, each corresponding to one of the scissor head assemblies 100. One end of each connecting seat 200 is hinged to the others, and the other end of each connecting seat 200 is connected to the scissor base 110 of the corresponding scissor head assembly 100. Two handles 300 are provided, one end of each handle 300 is hinged to the others, and the hinge axis is coaxial with the hinge axis between the connecting seats 200. One end of each handle 300 is provided with a main linkage structure. The scissor seat 110 has a first connection position and a second connection position on the connecting seat 200, and the scissor seat 110 can switch between the first connection position and the second connection position. When the scissor seat 110 of the scissor head assembly 100 is in the first connection position, the driven linkage structure of the two scissor blades 120 of the scissor head assembly 100 is connected one-to-one with the main linkage structure of the two handles 300. When the two handles 300 open and close, the two scissor blades 120 can be linked to open and close through the main linkage structure and the driven linkage structure. When the scissor seat 110 of the scissor head assembly 100 is in the second connection position, the driven linkage structure of the two scissor blades 120 is disengaged from the main linkage structure of the two handles 300, and the scissor head assembly 100 can rotate relative to the handles 300 through the corresponding connecting seat 200.

[0036] When using the scissors, the scissor seat 110 of one scissor head assembly 100 is switched to the first connection position, and the scissor seats 110 of the other scissor head assemblies 100 are switched to the second connection position. The handle 300 drives the scissor blades 120 of only one scissor head assembly 100 to move in linkage through the main linkage structure and the secondary linkage structure. If it is necessary to switch to use scissor head assemblies 100 with different types of scissor blades 120, first keep the scissor seats 110 of all scissor head assemblies 100 in the second connection position, rotate the scissor head assembly 100 to the opposite side of the two handles 300, so that the scissor head assembly 100 and the two handles 300 are on both sides of the hinge axis of the two handles 300, and then switch the scissor seat 110 of the scissor head assembly 100 to the first connection position, so that the secondary linkage structure of the two scissor blades 120 of the scissor head assembly 100 is connected one-to-one with the main linkage structure of the two handles 300, thereby realizing the switching of the scissor head assembly 100. The aforementioned scissors can switch between different types of scissor head components 100, offering a variety of functions. Different scissor head components 100 can be used for different pruning tasks, reducing the number of scissors to carry and facilitating gardening operations.

[0037] It is understood that the different types of scissor blades 120 in the scissor head assembly 100 refer to differences in the length and / or shape of the scissor blades 120, thus forming different types of scissor head assemblies 100. These different types of scissor head assemblies 100 can adapt to different pruning situations. In this embodiment, there are three types of scissor head assemblies 100, each employing three different types of scissor blades 120 to achieve different pruning functions: one type of scissor blade 120 is a longer, straight-bladed blade suitable for pruning large areas of plant leaves; another type is a shorter, straight-bladed blade suitable for pruning thin, soft branches; and the third type is a curved-bladed blade suitable for pruning thick branches. It is conceivable that in other embodiments, the use of scissor blades 120 is not limited to these three types; appropriate scissor blades 120 can be selected based on actual needs to form the scissor head assembly 100. It is conceivable that there may be only two scissor head assemblies 100, with different types of scissor blades 120, so that the scissors can have two trimming functions; of course, the number and types of scissor head assemblies 100 may also be more than three.

[0038] In this embodiment, the scissor holder 110 is detachably connected to the connecting seat 200, allowing the entire scissor head assembly 100 to be disassembled by removing the scissor holder 110. This facilitates the replacement of the scissor head assembly 100 with a new one or the maintenance of the scissor blades 120. The detachable connection between the scissor holder 110 and the connecting seat 200 enables the disassembly of the entire scissor head assembly 100. Compared to other detachable scissor head structures, the scissor blades 120 are easier to implement because they are not hinged to the handle 300 together but are connected to the handle 300 via the connecting seat 200.

[0039] In this embodiment, the scissor seat 110 and the connecting seat 200 are interlocked. One of the scissor seat 110 and the connecting seat 200 is provided with a first latching position 111 and a second latching position 112, while the other is provided with a latching part 210. The first latching position 111 and the second latching position 112 are arranged along the interlocking direction of the scissor seat 110 and the connecting seat 200. The latching part 210 is used to latch with the first latching position 111 and the second latching position 112 to restrict the scissor seat 110 and the connecting seat 200 from disengaging. When the latching part 210 is latched with the first latching position 111 and the second latching position 112 respectively, the scissor seat 110 is in the first connection position and the second connection position respectively. The latching part 210 can disengage from the first latching position 111 and the second latching position 112 so that the scissor seat 110 and the connecting seat 200 can be disassembled. When the scissor holder 110 needs to be disassembled from the corresponding connector 200, the snap-fit ​​part 210 is simply disengaged from both the first snap-fit ​​position 111 and the second snap-fit ​​position 112. When switching between different scissor head assemblies 100, the scissor holder 110 needs to be switched between the first connection position and the second connection position. This can be achieved by switching the snap-fit ​​position of the snap-fit ​​part 210. The above structure, through the plug-in engagement structure and the multi-position snap-fit ​​engagement structure, not only enables the disassembly of the scissor holder 110 but also facilitates the switching of the connection position of the scissor holder 110. The design is ingenious, and the structure is compact and reasonable.

[0040] In this embodiment, the scissor seat 110 is provided with a insertion groove 113, and the connecting seat 200 is provided with a insertion part 220. The insertion part 220 is inserted into the insertion groove 113. The first locking position 111 and the second locking position 112 are locking slots formed in the groove wall of the insertion groove 113. The locking part 210 is provided on the connecting seat 200 and passes through the insertion groove 113. The locking part 210 includes a spring body 211, a pressing body 212, and a locking protrusion 213. One end of the spring body 211 is a connecting end, and the pressing body 212 is connected to the other end of the spring body 211. The pressing part is exposed outside the insertion groove 113. The locking protrusion 213 is provided on the spring body 211 and is adapted to lock into the first locking position 111 and the second locking position 112 to position the insertion part 220 for insertion. The position of the groove 113 forms the first connection position and the second connection position of the scissor seat 110. When the pressing body 212 is pressed, the spring body 211 can deform in the direction away from the first latching position 111 and the second latching position 112, so that the latching protrusion 213 can be dislodged from one of the first latching position 111 and the second latching position 112. After the latching protrusion 213 is dislodged from one of the first latching position 111 and the second latching position 112, the insertion part 220 can slide and adjust its position in the insertion groove 113. When the latching protrusion 213 is opposite to the other of the first latching position 111 and the second latching position 112, the spring body 211 can be restored to its original shape by releasing the pressing body 212, so that the latching protrusion 213 can be inserted into the other of the first latching position 111 and the second latching position 112. After the protrusion 213 disengages from the first latching position 111 and the second latching position 112, the insertion part 220 can slide out of the insertion groove 113, thereby realizing the disassembly of the scissor seat 110.

[0041] In this embodiment, the connecting seat 200 includes two clamping pieces arranged in pairs. Each clamping piece has an insertion portion 220 and a snap-fit ​​portion 210. The scissor seat 110 has two corresponding insertion slots 113, and two sets of first snap-fit ​​positions 111 and second snap-fit ​​positions 112 are correspondingly provided, thereby forming a double-fitting structure with a stable fit. Of course, it is conceivable that those skilled in the art can reasonably configure the quantity of each component and each structure according to the actual situation, and are not limited to the above-described embodiments.

[0042] It is conceivable that, in other embodiments, to achieve the detachable configuration of the scissor seat 110 and the connecting seat 200, the scissor seat 110 and the connecting seat 200 can also adopt a structure such as threaded fastener connection or snap-fit ​​connection. Furthermore, to allow the scissor seat 110 to have two connection positions on the connecting seat 200, two mounting structures can be provided on the connecting seat 200 for the scissor seat 110 to be installed separately, thereby forming two connection positions.

[0043] In this embodiment, the main linkage structure is a driving gear 910, and the secondary linkage structure is a driven gear 920. In each scissor head assembly 100, the two driven gears 920 disposed on the two scissor blades 120 are coaxial with the hinge axis of the two scissor blades 120, and the scissor blades 120 and the driven gears 920 disposed thereon are rotatable together. The two driving gears 910 disposed on the two handles 300 are coaxial with the hinge axis of the two handles 300, and the handles 300 and the driving gears 910 disposed thereon are rotatable together. When the scissor seat 110 is in the first connection position, the driven gears 920 and the driving gears 910 are engaged; when the scissor seat 110 is in the second connection position, the driven gears 920 and the driving gears 910 are disengaged. The linkage between the handles 300 and the scissor blades 120 is achieved through the gear meshing structure. The structure is simple and easy to implement, and it is also convenient to achieve a force-saving or distance-saving structure by using different combinations of the number of teeth.

[0044] In this embodiment, to conform to general usage habits, in the embodiment shown in the accompanying drawings, when the two handles 300 are open, the two scissor blades 120 of the scissor head assembly 100 are also open, and when the two handles 300 are closed, the two scissor blades 120 of the scissor head assembly 100 are also closed. Of course, it is conceivable that in other embodiments, the structure can also be configured such that when the two handles 300 are open, the two scissor blades 120 of the scissor head assembly 100 are closed, and when the two handles 300 are close together, the two scissor blades 120 of the scissor head assembly 100 are open.

[0045] In the embodiment, the driven gear 920 can be fixed together with the corresponding shear blade 120 by means of integral molding, welding, key connection, etc., so as to form a structure that can rotate together.

[0046] In this embodiment, the handle 300 is provided with a sleeve shaft 310, the drive gear 910 is provided with a torque transmission hole 911, the sleeve shaft 310 is provided with a torque transmission section 311, the torque transmission section 311 is adapted to the shape of the torque transmission hole 911, the torque transmission hole 911 is a non-circular hole, the torque transmission section 311 is inserted into the torque transmission hole 911, the sleeve shaft 310 is provided with a hollow circular hole 312, the main hinge shaft 400 is rotatably passed through the hollow circular hole 312 of the two handles 300, the sleeve shaft 310 is provided with a cylindrical section 313, one end of the connecting seat 200 is provided with a circular hole, and the connecting seat 200 is rotatably mounted on the cylindrical section 313 through the circular hole at one end. Through the above structure, the handles 300 and the corresponding drive gears 910 can rotate together, and the two handles 300 and the connecting seat 200 can be coaxially hingedly connected. The structure is simple and compact, and easy to implement. It is conceivable that the handle 300 and the corresponding drive gear 910 can also be fixed together by means of integral molding, welding, key connection, etc., so as to form a structure that can rotate together.

[0047] It is conceivable that the main linkage structure and the slave linkage structure are not limited to the above-described implementation methods. For example, one of the main linkage structure and the slave linkage structure may be configured as a plug and the other as a slot. In each scissor head assembly 100, the two scissor blades 120 are not connected by hinges. Instead, one scissor blade 120 is provided with an arc-shaped groove and the other is provided with a sliding shaft. The center of the arc-shaped groove extends along a circular path that is coaxial with the hinge axis of the two handles 300. The sliding shaft is movably disposed in the arc-shaped groove, so that the two scissor blades 120 can open and close to each other through the cooperation of the arc-shaped groove and the sliding shaft. In the first connection position, the scissor holder 110 engages with the scissor blades 120 and the handles 300 via corresponding inserts and slots. At this position, the handles 300 can open and close relative to each other around their hinge axes. Simultaneously, since the arc-shaped slots also center around the hinge axes of the handles 300, the handles 300 directly drive the scissor blades 120 to open and close relative to each other around their hinge axes, thus achieving the function of scissors. In the second connection position, the inserts and slots disengage, allowing the handles 300 and scissor blades 120 to disengage. This structure eliminates the need for gears, achieving linkage through direct insertion, resulting in a simple structure that is easy to implement.

[0048] In this embodiment, the handle 300 is provided with a positioning mechanism 320. The scissor head assembly 100, with the scissor seat 110 in the second connection position, can rotate to a position that engages with the positioning mechanism 320. The positioning mechanism 320 is used to position the relative positions of the scissor head assembly 100 and the handle 300 so that the handle 300 can rotate together with the scissor head assembly 100. With the above structure, when a certain scissor head assembly 100 is not in use, it can be positioned together with the handle 300 by the positioning mechanism 320, thereby preventing it from moving around randomly and affecting normal use.

[0049] In this embodiment, each handle 300 is provided with two positioning mechanisms 320. Each positioning mechanism 320 is used to correspond one-to-one with the two scissor blades 120 of the scissor head assembly 100. The positioning mechanism 320 is used to position the corresponding scissor blade 120 relative to the handle 300. With the above structure, the two positioning mechanisms 320 respectively position the two scissor blades 120, preventing them from moving arbitrarily.

[0050] In this embodiment, the positioning mechanism 320 is specifically a spring bead. The spring bead has an elastically expandable and contractible body. The scissor blade 120 of the scissor head assembly 100 is provided with a locking hole for engaging with the spring bead. When the scissor head assembly 100 rotates to a position where the spring bead and the locking hole are opposite each other, the spring bead can be engaged in the locking hole, thereby positioning the relative positions of the scissor head assembly 100 and the handle 300. When the scissor head assembly 100 needs to be reused, the scissor head assembly 100 is rotated by external force to overcome the spring force inside the spring bead and disengage the bead from the locking hole, thereby releasing the positioning function of the spring bead. It is conceivable that the positioning mechanism 320 is not limited to using a spring bead; for example, a magnet can be used, with the scissor blade 120 being an iron part, thereby using magnetic attraction to position the scissor head assembly 100 and the handle 300.

[0051] In this embodiment, three scissor head assemblies 100 are provided, two of which can be positioned with the two handles 300 respectively through the positioning mechanism 320. Since only one scissor head assembly 100 is used during normal use of the scissors, the other two scissor head assemblies 100 can be positioned with the two handles 300 respectively through the positioning mechanism 320, thereby preventing the two scissor head assemblies 100 from moving around randomly.

[0052] In this embodiment, the handle 300 is provided with a clearance channel 330, and the clearance channels 330 of the two handles 300 are arranged opposite each other. The scissor head assembly 100 can enter the clearance channel 330 and pass through the clearance channels 330 of the two handles 300. With the above structure, unused scissor head assemblies 100 can enter the clearance channel 330 and stack with the handles 300, reducing external interference and making the structure more compact. The scissor head assembly 100 can pass through the clearance channel 330 of the two handles 300 without affecting the rotation and position switching of the scissor head assembly 100. In this embodiment, the positioning mechanism 320 is provided on the side wall of the clearance channel 330, thereby facilitating positioning. In this embodiment, three scissor head assemblies 100 are provided, two of which can be accommodated in the clearance channels 330 of the two handles 300 respectively.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pair of scissors, characterized in that, include: At least two scissor head assemblies (100) are provided. Each scissor head assembly (100) includes a scissor base (110) and two scissor blades (120). The scissor blades (120) of the at least two scissor head assemblies (100) are of different types. One end of each scissor blade (120) is connected to the scissor base (110). The two scissor blades (120) can open and close. One end of each scissor blade (120) is provided with a linkage structure. Connecting seats (200) are provided in at least two and correspond one-to-one with the scissor head assembly (100). One end of the connecting seats (200) is hinged to each other, and the other end of the connecting seats (200) is connected to the scissor seat (110) of the corresponding scissor head assembly (100). Two handles (300) are provided, one end of each handle (300) is hinged to the other and the hinge axis is coaxial with the hinge axis between the connecting seat (200). One end of each handle (300) is provided with a main linkage structure. The scissor seat (110) has a first connection position and a second connection position on the connecting seat (200). The scissor seat (110) can switch between the first connection position and the second connection position. When the scissor seat (110) of the scissor head assembly (100) is in the first connection position, the secondary linkage structure of the two scissor blades (120) of the scissor head assembly (100) is connected one-to-one with the primary linkage structure of the two handles (300). When the two handles (300) open and close, they can be linked by the primary linkage structure and the secondary linkage structure to open and close. When the scissor seat (110) of the scissor head assembly (100) is in the second connection position, the secondary linkage structure of the two scissor blades (120) is disengaged from the primary linkage structure of the two handles (300). The scissor head assembly (100) can rotate relative to the handle (300) through the corresponding connecting seat (200).

2. The scissors according to claim 1, characterized in that: The scissor seat (110) is detachably connected to the connecting seat (200).

3. The scissors according to claim 2, characterized in that: The scissor seat (110) and the connecting seat (200) are interlocked. One of the scissor seat (110) and the connecting seat (200) is provided with a first latching position (111) and a second latching position (112), while the other is provided with a latching part (210). The first latching position (111) and the second latching position (112) are arranged along the interlocking direction of the scissor seat (110) and the connecting seat (200). The latching part (210) is used to engage with the first latching position (111) and the second latching position (212). The locking position (112) engages to prevent the scissor seat (110) and the connecting seat (200) from disengaging from each other. When the locking part (210) is locked in the first locking position (111) and the second locking position (112) respectively, the scissor seat (110) is in the first connecting position and the second connecting position respectively. The locking part (210) can disengage from the first locking position (111) and the second locking position (112) so that the scissor seat (110) and the connecting seat (200) can be disassembled.

4. The scissors according to claim 1, characterized in that: The main linkage structure is a driving gear (910), and the driven linkage structure is a driven gear (920). In each scissor head assembly (100), the two driven gears (920) disposed on the two scissor blades (120) are coaxial with the hinge axis of the two scissor blades (120), and the scissor blades (120) and the driven gears (920) disposed thereon are rotatable together. The two driving gears (910) disposed on the two handles (300) are coaxial with the hinge axis of the two handles (300), and the handles (300) and the driving gears (910) disposed thereon are rotatable together. When the scissor seat (110) is in the first connection position, the driven gears (920) and the driving gears (910) are engaged. When the scissor seat (110) is in the second connection position, the driven gears (920) and the driving gears (910) are disengaged.

5. The scissors according to claim 4, characterized in that: The handle (300) is provided with a sleeve shaft (310), the drive gear (910) is provided with a torque transmission hole (911), the sleeve shaft (310) is provided with a torque transmission section (311), the torque transmission section (311) is adapted to the shape of the torque transmission hole (911), the torque transmission hole (911) is a non-circular hole, the torque transmission section (311) is inserted into the torque transmission hole (911), the sleeve shaft (310) is provided with a hollow circular hole (312), the main hinge shaft (400) is rotatably passed through the hollow circular hole (312) of the two handles (300), the sleeve shaft (310) is provided with a cylindrical section (313), one end of the connecting seat (200) is provided with a circular hole, and the connecting seat (200) is rotatably mounted on the cylindrical section (313) through the circular hole at one end.

6. The scissors according to claim 1, characterized in that: The handle (300) is provided with a positioning mechanism (320). The scissor head assembly (100) in the second connection position of the scissor seat (110) can rotate to a position that cooperates with the positioning mechanism (320). The positioning mechanism (320) is used to position the relative position of the scissor head assembly (100) and the handle (300) so that the handle (300) can rotate together with the scissor head assembly (100).

7. The scissors according to claim 6, characterized in that: Each handle (300) is provided with two positioning mechanisms (320), which are respectively used to cooperate with the two scissor blades (120) of the scissor head assembly (100) in a one-to-one correspondence. The positioning mechanism (320) is used to position the corresponding scissor blade (120) relative to the handle (300).

8. The scissors according to claim 6, characterized in that: Three scissor head assemblies (100) are provided, and two of the scissor head assemblies (100) can be positioned with the two handles (300) respectively through the positioning mechanism (320).

9. The scissors according to claim 1 or 6, characterized in that: The handle (300) is provided with a clearance channel (330), and the clearance channels (330) of the two handles (300) are arranged opposite to each other. The scissor head assembly (100) can enter the clearance channel (330) and can pass through the clearance channels (330) of the two handles (300).

10. The scissors according to claim 9, characterized in that: Three scissor head assemblies (100) are provided, two of which can be accommodated in the clearance channels (330) of the two handles (300).

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