Scissors

By setting up a raised structure on the scissor grip and using the clamping groove to the raised structure, the problem of easy loss and shaking of the sheath is solved, and the production efficiency and use stability are improved.

CN222589856UActive Publication Date: 2025-03-11SHANGHAI M&G STATIONERY INC
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Patent Information

Application Number
CN202420843358.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2025-03-11
Estimated Expiration
2034-04-22

AI Technical Summary

Technical Problem

During the use of existing scissors, the sheath is easily lost and swings or oscillates under the action of the spring rope, affecting the normal use of the scissors.

Method used

A scissor is designed, and the grip is integrally formed and the raised structure is arranged. The sheath is provided with a clamp slot. The clamp slot is clamped with the protruding structure to achieve the fixation of the sheath, avoiding the process of assembling the spring rope.

Benefits of technology

It effectively prevents the loss of the sheath, improves production efficiency, and reduces the shaking of the sheath during use, ensuring the normal use of scissors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cutting tools, in particular to scissors which comprise a scissors body and a protective sleeve, the scissors body comprises two sub-bodies, the two sub-bodies are hinged through a hinge shaft, each sub-body comprises a grab handle and a cutter body, and the grab handle of at least one sub-body is integrally provided with a protruding structure; the sheath is provided with a clamping groove, the sheath is provided with a first mounting position and a second mounting position, at the first mounting position, the sheath is arranged on the cutter body in a sleeving manner, and the clamping groove is connected with the hinge shaft in a clamping manner; and at the second mounting position, the sheath is mounted on the grab handle, and the clamping groove is clamped with the bulge structure. According to the scissors provided by the invention, the convex structure is integrally formed on the grab handle of at least one sub-main body, so that the process of assembling a spring rope in the prior art is omitted, and the production efficiency is improved. When the scissors are used, the protective sleeve is taken down from the scissors body and installed on the grab handle, the clamping groove in the protective sleeve is connected with the protruding structure in a clamped mode, the protective sleeve is prevented from being lost, and the protective sleeve does not shake basically in the using process of the scissors.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of cutting 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 sheet or linear objects such as paper, cloth, rope, etc. Take the scissors used by students as an example. In order to protect the safety of students, the scissors are usually provided with a sheath. When using, the sheath is removed. After use, the sheath is put on the blade of the scissors to prevent scratches.

[0003] In the related art, in order to prevent the sheath from being lost, the sheath is connected to the scissors handle by a spring rope, which not only makes the assembly complicated during the production process and has low production efficiency, but also when the scissors are used, the sheath will swing or vibrate up and down under the elastic force of the spring rope, affecting the normal use of the scissors. Utility Model Content

[0004] The purpose of the present invention is to provide a pair of scissors to prevent the loss of a sheath while facilitating assembly and not affecting normal use.

[0005] Based on the above-mentioned purpose, the present disclosure provides a kind of scissors, including a scissors main body and a sheath, the scissors main body includes two sub-bodies, the two sub-bodies are hinged by a hinge shaft, the two sub-bodies each include a handle and a blade body, and the handle of at least one of the sub-bodies is integrally formed and provided with a protruding structure; the sheath is provided with a slot, and the sheath has a first installation position and a second installation position, in the first installation position, the sheath is sleeved on the blade body, and the slot is clamped with the hinge shaft; in the second installation position, the sheath is installed on the handle, and the slot is clamped with the protruding structure.

[0006] In one embodiment of the present disclosure, the protrusion structure includes a first protrusion portion and a second protrusion portion, the first protrusion portion is connected to the side wall of the handle, and the second protrusion portion is connected to a side of the first protrusion away from the handle; in the second installation position, at least a portion of the first protrusion portion is located in the slot, and at least a portion of the second protrusion portion is located in the sheath.

[0007] In one embodiment of the present disclosure, a projection of the second protrusion in a setting plane covers a projection of the first protrusion in the setting plane, wherein the setting plane is perpendicular to an arrangement direction of the first protrusion and the second protrusion.

[0008] In one embodiment of the present disclosure, the slot has a slot wall, the slot wall has a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are arranged at intervals along the depth direction of the slot; the first protrusion includes a first sub-protrusion, the first sub-protrusion has a first limiting mating surface and a second limiting mating surface;

[0009] The sleeve can be moved along the depth direction of the slot to the second installation position. At the second installation position, the second protrusion is located inside the sleeve, the first limit matching surface abuts against the first limit surface, and the second limit matching surface abuts against the second limit surface to limit the movement of the sleeve along the depth direction of the slot.

[0010] In one embodiment of the present disclosure, the number of the groove walls is two, and the two groove walls are symmetrical about the first straight line; the two groove walls are both provided with the first limiting surface and the second limiting surface, the first limiting surfaces arranged on the two groove walls are symmetrical about the first straight line, and the second limiting surfaces arranged on the two groove walls are symmetrical about the first straight line, wherein the first straight line is parallel to the depth direction of the slot; the number of the first limiting mating surfaces and the second limiting mating surfaces are both two, the two first limiting mating surfaces are respectively located on both sides of the first protrusion, and the two second limiting mating surfaces are respectively located on both sides of the first protrusion.

[0011] In one embodiment of the present disclosure, the first protrusion further includes a second sub-protrusion, and the second sub-protrusion is connected between the two first limiting mating surfaces;

[0012] The card slot includes a first slot portion and a second slot portion, the first slot portion is connected to the second slot portion, and in the second installation position, the first sub-protrusion is limited to the first slot portion, and the second sub-protrusion is limited to the second slot portion.

[0013] In one embodiment of the present disclosure, the sheath has a first side wall, the slot is arranged on the first side wall, and the inner surface of the first side wall is provided with a guide slope, and the guide slope extends along the depth direction of the slot to the opening end of the sheath; the thickness of the part of the first side wall corresponding to the guide slope gradually increases from the opening end of the sheath to the position of the guide slope close to the slot, so that the first side wall is clamped and fixed between the second protrusion and the handle.

[0014] In one embodiment of the present disclosure, the sheath is movable to the second installation position along the arrangement direction of the first protrusion and the second protrusion, so that at least a portion of the second protrusion is located inside the sheath.

[0015] In one embodiment of the present disclosure, the surface of the second protrusion facing away from the first protrusion has a guiding contraction structure, and / or the slot is provided with a guiding expansion structure.

[0016] In one embodiment of the present disclosure, the sleeve is provided with a guide groove, the guide groove is connected to the card slot, the guide groove is located between the notch of the card slot and the opening of the sleeve, and the width of the guide groove is smaller than the maximum width of the card slot.

[0017] In one embodiment of the present disclosure, the opening of the sheath is formed with a flared portion.

[0018] The beneficial effects of the present disclosure are mainly:

[0019] The scissors provided by the present disclosure, by integrally forming a protruding structure on the handle of at least one sub-body, omit the process of assembling a spring rope in the prior art, and improve production efficiency. When using the scissors, the sheath is removed from the blade body and then installed on the handle, and the card slot on the sheath is engaged with the protruding structure, so as to prevent the sheath from being lost. At the same time, during the use of the scissors, the sheath will basically not shake, ensuring the normal use of the scissors. After use, the sheath is put on the blade body, and the card slot is engaged with the hinge shaft to realize the protective function of the sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 A schematic diagram of the structure of the scissors provided in an embodiment of the present disclosure (the sheath is located in the first installation position);

[0022] Figure 2 A front view of the scissors provided by an embodiment of the present disclosure (the sheath is in a first installation position);

[0023] Figure 3 A schematic diagram of the structure of the scissors provided in an embodiment of the present disclosure (the sheath is located in the second installation position);

[0024] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0025] Figure 5 A front view of the scissors provided by an embodiment of the present disclosure (the sheath is in the second installation position);

[0026] Figure 6 A side view of the scissors provided for an embodiment of the present disclosure (with the sheath in a second installation position);

[0027] Figure 7 for Figure 6 A cross-sectional view along line BB;

[0028] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0029] Fig. 9 A schematic diagram of a protruding structure in a pair of scissors provided in an embodiment of the present disclosure;

[0030] Fig.10 A schematic diagram of another protrusion structure and a card slot in the scissors provided in an embodiment of the present disclosure;

[0031] Fig.11 A schematic diagram of a third structure of the protrusion structure in the scissors provided in an embodiment of the present disclosure;

[0032] Fig.12 A fourth structural schematic diagram of the protruding structure in the scissors provided in an embodiment of the present disclosure.

[0033] The following are the descriptions of the reference numerals:

[0034] 10-scissors body; 10a-handle; 11-protrusion structure; 111a, 111b, 111c-first protrusion; 1111-first sub-protrusion; 1111a-first limiting fitting surface; 1111b-second limiting fitting surface; 1112-second sub-protrusion; 112a, 112b, 112c-second protrusion; 1121-guide contraction structure; 10b-blade body; 10c-hinge shaft; 20-sheath; 201-first side wall; 2011-guide slope; 21-slot; 211-slot wall; 2111-first limiting surface; 2112-second limiting surface; 22-guide groove; 23-expanding part. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See also Figures 1 to 12 As shown, this embodiment provides a pair of scissors, including a scissors body 10 and a sheath 20. The scissors body 10 includes two sub-bodies, the two sub-bodies are hinged by a hinge shaft 10c, and the two sub-bodies each include a handle 10a and a blade 10b. The handle 10a of at least one sub-body is integrally formed and provided with a protruding structure 11; the sheath 20 is provided with a card slot 21, and the sheath 20 has a first installation position and a second installation position. In the first installation position, see Figure 1 and Figure 2 As shown, the sheath 20 is mounted on the blade body 10b, and the slot 21 is engaged with the hinge shaft 10c; in the second installation position, see Figure 3 and Figure 4 As shown, the sheath 20 is installed on the handle 10 a , and the slot 21 is engaged with the protruding structure 11 .

[0039] The scissors provided in this embodiment are provided with a protruding structure 11 integrally formed on the handle 10a of at least one sub-body, thereby eliminating the process of assembling the spring rope in the prior art and improving production efficiency. When using the scissors, the sheath 20 is removed from the blade 10b and then installed on the handle 10a. The card slot 21 on the sheath 20 is engaged with the protruding structure 11, thereby preventing the sheath from being lost. At the same time, during the use of the scissors, the sheath 20 will basically not shake, ensuring the normal use of the scissors. After use, the sheath 20 is mounted on the blade 10b, and the card slot 21 is engaged with the hinge shaft 10c to realize the protective function of the sheath 20.

[0040] The scissors provided in this embodiment can provide users with a new solution for storing the sheath without substantially increasing the production and use costs, so as to avoid the loss of the sheath as much as possible and prevent accidents. At the same time, the shape of the protruding structure 11 is designed to be relatively small and can be designed in a variety of styles, which is easy for users to accept and is conducive to promotion and application.

[0041] For example, when in use, the thumb of the right hand is inserted into one handle 10a, at least one of the other four fingers is inserted into another handle 10a, the left hand removes the sheath 20 from the blade body 10b, and then installs the sheath 20 on the handle 10a. At this time, it is generally believed that the protruding structure 11 is located on the handle 10a where the thumb is located, which makes it easy to install the sheath.

[0042] In this embodiment, the handles 10a of the two sub-bodies are integrally formed with a protruding structure 11, which makes it easy for the user to install the sheath 20 at the second installation position without having to check in advance which handle 10a the protruding structure 11 is located on, or to change the position of the scissors so that the position where the protruding structure 11 is located is convenient for installing the sheath 20.

[0043] Of course, in other embodiments, the protruding structure 11 may be integrally formed on the handle 10a of only one sub-body.

[0044] In this embodiment, the shapes and structures of the handles 10a in the two sub-bodies are substantially the same. In other embodiments, the shapes and structures of the handles 10a in the two sub-bodies may also be different.

[0045] Exemplarily, the hinge shaft 10c may be a rivet or a pin.

[0046] Exemplarily, when the scissors are used, the side of the handle 10a that can contact the back of the finger is the inner side of the handle 10a, and the other side is the outer side of the handle 10a.

[0047] In one embodiment, the protrusion structure 11 is integrally formed on the outer side of the handle 10 a , which facilitates the installation of the sheath 20 .

[0048] In one embodiment, see Figure 7 and Figure 8 As shown, the sheath 20 is provided with a guide groove 22 , which is communicated with the clamping groove 21 , and is located between the notch of the clamping groove 21 and the opening of the sheath 20 , and the width of the guide groove 22 is smaller than the maximum width of the clamping groove 21 .

[0049] When the sheath 20 is mounted on the blade body 10 b , the hinge shaft can move relative to the sheath along the guide groove 22 until the hinge shaft is restrained in the clamping groove 21 .

[0050] In one embodiment, see Figure 7 As shown, the opening of the sheath 20 is formed with a flared portion 23. When the sheath 20 is sleeved on the blade body 10b, it is convenient to push the hinge shaft from the flared portion 23 into the guide groove 22, thereby facilitating the installation of the sheath 20.

[0051] In one embodiment, see Figure 2 and Fig. 9 As shown, the protrusion structure 11 includes a first protrusion portion 111a and a second protrusion portion 112a, the first protrusion portion 111a is connected to the side wall of the handle 10a, and the second protrusion portion 112a is connected to the side of the first protrusion portion 111a away from the handle 10a; in the second installation position, at least a portion of the first protrusion portion 111a is located in the slot 21, and at least a portion of the second protrusion portion 112a is located in the sheath 20, which can reduce the risk of the sheath 20 detaching from the protrusion structure 11.

[0052] There are many forms of the protruding structure 11, for example, see Figure 3 and Figure 4 As shown, the second protrusion 112a is entirely located in the sheath 20, and the sheath 20 is fixed by the clamping action between the second protrusion 112a and the handle 10a.

[0053] For another example, the protrusion structure 11 may be a truncated cone structure, see Fig.11 As shown, the cross section of the protruding structure 11 is an inverted trapezoidal structure, and the cross section is parallel to the arrangement direction of the first protruding portion 111b and the second protruding portion 112b; illustratively, the thickness of the first protruding portion 111b and the second protruding portion 112b is equal, and the first protruding portion 111b and the second protruding portion 112b are integrally formed, and the dotted line is a virtual joint surface between the two. The two groove walls 211 of the slot 21 are adapted to the two waists of the inverted trapezoidal structure. When the sheath 20 is installed on the handle 10a, the sheath 20 can be installed on the protruding structure 11 by pressing until the groove wall 211 of the slot 21 forms a tight fit with the protruding structure 11. After being assembled in place, the second protruding portion 112b can be completely located in the sheath 20, or a part of it can be located in the sheath 20, and the first protruding portion 111b can be completely located in the slot 21, or a part of it can be located in the slot 21.

[0054] In one embodiment, a projection of the second protrusion 112a in a setting plane covers a projection of the first protrusion 111a in the setting plane, wherein the setting plane is perpendicular to an arrangement direction of the first protrusion 111a and the second protrusion 112a.

[0055] For example, see Fig. 9 As shown, the outer contour of the projection of the second protrusion 112a in the set plane does not overlap with the outer contour of the projection of the first protrusion 111a in the set plane.

[0056] For example, see Fig.11 As shown, the second protrusion 112b has a first surface and a second surface opposite to each other, wherein the first surface (shown by a dotted line) coincides with the surface of the first protrusion 111b away from the handle 10a, and the area of ​​the second surface is greater than the area of ​​the first surface. When the projection of the second protrusion 112b in the setting plane is the projection of the first surface in the setting plane, the outer contour of the projection of the first surface in the setting plane may completely coincide with the outer contour of the projection of the first protrusion 111b in the setting plane, or may form a concentric circle with the outer contour of the projection of the first protrusion 111b in the setting plane. When the projection of the second protrusion 112b in the setting plane is the projection of the second surface in the setting plane, the outer contour of the projection of the second surface in the setting plane may form a concentric circle with the outer contour of the projection of the first protrusion 111b in the setting plane.

[0057] In a possible design, the slot 21 has a slot wall 211, the slot wall 211 has a first limiting surface 2111 and a second limiting surface 2112, and the first limiting surface 2111 and the second limiting surface 2112 are spaced apart along the depth direction of the slot 21; the first protrusion 111a includes a first sub-protrusion 1111, and the first sub-protrusion 1111 has a first limiting mating surface 1111a and a second limiting mating surface 1111b; the sleeve 20 can move to a second installation position along the depth direction of the slot 21, and in the second installation position, the second protrusion 112a is located in the sleeve 20, the first limiting mating surface 1111a abuts against the first limiting surface 2111, and the second limiting mating surface 1111b abuts against the second limiting surface 2112, so as to limit the movement of the sleeve 20 along the depth direction of the slot 21.

[0058] For example, see Figure 8 As shown, the groove wall 211 can be an arcuate surface, and the first limit matching surface 1111a and the second limit matching surface 1111b can also be arcuate surfaces, which are respectively matched with the first limit surface 2111 and the second limit surface 2112. When the protruding structure 11 slides to the second installation position relative to the sleeve 20, the second protruding portion 112a is located in the sleeve 20, the first limit matching surface 1111a abuts against the first limit surface 2111, and the second limit matching surface 1111b abuts against the second limit surface 2112, thereby limiting the movement of the sleeve 20 along the depth direction of the slot 21.

[0059] In this possible design, see Figure 8As shown, there are two groove walls 211, and the two groove walls 211 are symmetrical about a first straight line (shown by a dotted line); the two groove walls 211 are both provided with a first limiting surface 2111 and a second limiting surface 2112, the first limiting surfaces 2111 provided on the two groove walls 211 are symmetrical about the first straight line, and the second limiting surfaces 2112 provided on the two groove walls 211 are symmetrical about the first straight line, and the first straight line is parallel to the depth direction of the slot 21; the number of the first limiting mating surfaces 1111a and the second limiting mating surfaces 1111b are both two, the two first limiting mating surfaces 1111a are respectively located on both sides of the first protruding portion 111a, and the two second limiting mating surfaces 1111b are respectively located on both sides of the first protruding portion 111a.

[0060] By providing two symmetrical groove walls 211 and two symmetrical first limiting surfaces 2111 and two symmetrical second limiting surfaces 2112, it is convenient for the user to install the sheath 20 from two directions, so that the user can choose according to the usage habits, thereby enhancing the installation flexibility and the convenience of use. Figure 5 As shown, the sheath 20 can be installed on the handle 10a along a first direction (indicated by the arrow direction D1), and can also be installed on the handle 10a along a second direction, wherein the second direction is opposite to the first direction.

[0061] At the same time, the two groove walls 211 are both provided with a first limiting surface 2111 and a second limiting surface 2112 , which can limit the movement of the sheath 20 along the width direction of the slot 21 , further improving the stability of the sheath 20 in the second installation position.

[0062] In this possible design, see Figure 8 As shown, the first protrusion 111a also includes a second sub-protrusion 1112, and the second sub-protrusion 1112 is connected between the two first limiting mating surfaces 1111a; the slot 21 includes a first slot portion and a second slot portion, and the first slot portion and the second slot portion are connected. In the second installation position, the first sub-protrusion 1111 is limited to the first slot portion, and the second sub-protrusion 1112 is limited to the second slot portion.

[0063] Exemplarily, there are two second sub-protrusions 1112, and the two second sub-protrusions 1112 are arranged opposite to each other, wherein one second sub-protrusion 1112 is connected between the two first limiting mating surfaces 1111a, and the other second sub-protrusion 1112 is connected between the two first limiting mating surfaces 1111a through the two second limiting mating surfaces 1111b.

[0064] The card slot 21 includes a first slot portion and a second slot portion, the first slot portion and the second slot portion are connected, the first slot portion is located between the second slot portion and the guide slot 22, and in the second installation position, the first sub-protrusion 1111 is limited to the first slot portion, one of the second sub-protrusions 1112 is limited to the second slot portion, and the other second sub-protrusion 1112 is limited to the guide slot 22.

[0065] Of course, there may be only one second sub-protrusion 1112 , and the second sub-protrusion 1112 can be limited in the second groove portion.

[0066] In this possible design, see Figure 4 As shown, the sheath 20 has a first side wall 201, and the slot 21 is arranged on the first side wall 201. The inner surface of the first side wall 201 is provided with a guide slope 2011, and the guide slope 2011 extends to the opening end of the sheath 20 along the depth direction of the slot 21; the thickness of the part of the first side wall 201 corresponding to the guide slope 2011 gradually increases from the opening end of the sheath 20 to the position of the guide slope 2011 close to the slot 21, so that the first side wall 201 is clamped and fixed between the second protrusion 112a and the handle 10a.

[0067] When the sheath 20 moves relative to the handle 10a, the first side wall 201 is located between the handle 10a and the second protrusion 112a. Since the thickness of the portion of the first side wall 201 corresponding to the guide slope 2011 gradually increases from the opening end of the sheath 20 to the position of the guide slope 2011 close to the slot 21, the gap between the inner surface of the first side wall 201 and the second protrusion 112a becomes smaller and smaller until the inner surface of the first side wall 201 is in close contact with the second protrusion 112a. At this time, the first side wall 201 is clamped and fixed between the second protrusion 112a and the handle 10a, thereby effectively preventing the sheath 20 from shaking along the arrangement direction of the first protrusion 111a and the second protrusion 112a.

[0068] See also Fig.10 As shown, in this possible design, the first protrusion may not include the second sub-protrusion 1112, that is, the first sub-protrusion 1111 is the first protrusion.

[0069] In another possible design, see Fig.11 As shown, the sheath 20 can be moved to the second installation position along the arrangement direction of the first protrusion 111 b and the second protrusion 112 b so that at least a portion of the second protrusion 112 b is located inside the sheath 20 .

[0070] The raised structure 11 may be a truncated cone structure, and the cross section of the raised structure 11 is an inverted trapezoidal structure, which is parallel to the arrangement direction of the first raised portion 111b and the second raised portion 112b; illustratively, the thickness of the first raised portion 111b and the second raised portion 112b is equal, and the two groove walls 211 of the slot 21 are adapted to the two waists of the inverted trapezoidal structure. When the sheath 20 is installed on the handle 10a, the sheath 20 can be installed on the raised structure 11 by pressing until the groove wall 211 of the slot 21 forms a tight fit with the raised structure 11. After being assembled in place, the second raised portion 112b can be completely located in the sheath 20, or partially located in the sheath 20, and the first raised portion 111b can be completely located in the slot 21, or partially located in the slot 21.

[0071] The protruding structure 11 may also be a structure with a large cross section at one end and a small cross section at the other end. Fig.12 As shown, the protrusion structure 11 includes a first protrusion 111c and a second protrusion 112c. The first protrusion 111c and the second protrusion 112c are both cylindrical structures. The diameter of the first protrusion 111c is smaller than the diameter of the second protrusion 112c. When the user installs the sheath 20 on the handle 10a by pressing, the second protrusion 112c is limited in the sheath 20, and the first protrusion 111c is limited in the slot 21.

[0072] Of course, in order to further prevent the sheath 20 from rotating, the first protrusion 111c may also be a prismatic or elliptical columnar structure.

[0073] In this other possible design, see Fig.11 As shown, the surface of the second protrusion 112b facing away from the first protrusion 111b has a guiding contraction structure 1121, and the clamping groove 21 is provided with a guiding expansion structure.

[0074] See also Fig.12 As shown, the surface of the second protrusion 112c facing away from the first protrusion 111c has a guiding contraction structure 1121, and the clamping groove 21 is provided with a guiding expansion structure.

[0075] The guide contraction structure 1121 cooperates with the guide expansion structure to facilitate the second protrusions 112b and 112c to enter the sheath 20, thereby facilitating the installation of the sheath 20 at the second installation position.

[0076] Exemplarily, the guide contraction structure may be a rounded corner or a chamfered corner.

[0077] In other embodiments, the guide contraction structure and the guide expansion structure may be set alternatively.

[0078] It should be noted that the shape of the protruding structure 11, the matching method between the protruding structure 11 and the slot 21, and the installation method of the sheath 20 at the second installation position are not limited to the above-mentioned ones, and multiple options can be made according to actual production and use conditions, as long as the functions of facilitating production and processing, facilitating installation and use, and preventing the loss of the sheath can be achieved.

[0079] 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 main body and a sheath, wherein the main body includes two sub-bodies, the two sub-bodies are hinged via a hinge shaft, the two sub-bodies each include a handle and a blade body, and the handle of at least one of the sub-bodies is integrally formed and provided with a protruding structure; the sheath is provided with a slot, and the sheath has a first installation position and a second installation position, in the first installation position, the sheath is sleeved on the blade body, and the slot is engaged with the hinge shaft; in the second installation position, the sheath is installed on the handle, and the slot is engaged with the protruding structure.

2. The scissors according to claim 1, characterized in that: The protrusion structure includes a first protrusion and a second protrusion, wherein the first protrusion is connected to the side wall of the handle, and the second protrusion is connected to a side of the first protrusion away from the handle; In the second installation position, at least a portion of the first protrusion is located in the slot, and at least a portion of the second protrusion is located in the sheath.

3. The scissors according to claim 2, characterized in that: The projection of the second protrusion in a setting plane covers the projection of the first protrusion in the setting plane, wherein the setting plane is perpendicular to an arrangement direction of the first protrusion and the second protrusion.

4. The scissors according to claim 3, characterized in that: The slot has a slot wall, the slot wall has a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are arranged at intervals along the depth direction of the slot; the first protrusion includes a first sub-protrusion, the first sub-protrusion has a first limiting matching surface and a second limiting matching surface; The sleeve can be moved along the depth direction of the slot to the second installation position. At the second installation position, the second protrusion is located inside the sleeve, the first limit matching surface abuts against the first limit surface, and the second limit matching surface abuts against the second limit surface to limit the movement of the sleeve along the depth direction of the slot.

5. The scissors according to claim 4, characterized in that: The number of the groove walls is two, and the two groove walls are symmetrical about the first straight line; the two groove walls are both provided with the first limiting surface and the second limiting surface, the first limiting surfaces arranged on the two groove walls are symmetrical about the first straight line, and the second limiting surfaces arranged on the two groove walls are symmetrical about the first straight line, wherein the first straight line is parallel to the depth direction of the slot; the number of the first limiting mating surfaces and the second limiting mating surfaces are both two, the two first limiting mating surfaces are respectively located on both sides of the first protrusion, and the two second limiting mating surfaces are respectively located on both sides of the first protrusion.

6. The scissors according to claim 5, characterized in that: The first protrusion also includes a second sub-protrusion, and the second sub-protrusion is connected between the two first limiting matching surfaces; The card slot includes a first slot portion and a second slot portion, the first slot portion is connected to the second slot portion, and in the second installation position, the first sub-protrusion is limited to the first slot portion, and the second sub-protrusion is limited to the second slot portion.

7. The scissors according to claim 4, characterized in that: The sheath has a first side wall, the slot is arranged on the first side wall, the inner surface of the first side wall is provided with a guide slope, and the guide slope extends along the depth direction of the slot to the opening end of the sheath; the thickness of the part of the first side wall corresponding to the guide slope gradually increases from the opening end of the sheath to the position of the guide slope close to the slot, so that the first side wall is clamped and fixed between the second protrusion and the handle.

8. The scissors according to claim 3, characterized in that: The sheath can be moved to the second installation position along the arrangement direction of the first protrusion and the second protrusion, so that at least a part of the second protrusion is located in the sheath.

9. The scissors according to claim 8, characterized in that: The surface of the second protrusion facing away from the first protrusion has a guiding contraction structure, and / or the clamping groove is provided with a guiding expansion structure.

10. The scissors according to any one of claims 1 to 9, characterized in that: The sheath is provided with a guide groove, the guide groove is communicated with the clamping slot, the guide groove is located between the notch of the clamping slot and the opening of the sheath, and the width of the guide groove is smaller than the maximum width of the clamping slot.

11. The scissors according to claim 10, characterized in that: The opening of the sheath is formed with a flared portion.