Quick-release shearing tool
By setting up convex columns and grooves in the handle of the shear, and embedding magnets and ring -shaped objects in the hinge, the problem of difficult use of the existing shear use, realizing the rapid decomposition of the scissors and the stable bite of the hinge part. Extend the service life.
Patent Information
- Application Number
- CN202510000018.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-01
- Publication Date
- 2025-01-28
AI Technical Summary
After using the existing shears for a period of time, the blade becomes dull and the gap between the hinge part becomes larger, making it difficult to use the shears, and the hinge part is not detachable, making it difficult to effectively grind the knife part.
A quick -disassembly cutting tip is designed. By setting convex columns and grooves in the cutting of the cut, and embedding the magnet and ring in the hinge, the rapid decomposition of the shear and the stable bite of the hinge part.
The rapid decomposition of the shear and the stable occlusion of the hinge parts can be used to facilitate the grinding of the knife part and extend the service life of the shear.
Smart Images
Figure CN119369461A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of tools, and in particular relates to portable shears. Background Art
[0002] Scissors are double-edged tools for cutting sheet or linear objects such as cloth, paper, steel plates, ropes, round steel, etc. The double blades are staggered and can be opened and closed. Scissors are widely used. Tailors use scissors to cut cloth, village women use scissors to cut paper, workers use scissors to cut metal plates, herdsmen use scissors to shear wool, and gardeners use scissors to cut branches. However, these scissors will become very difficult to cut after using them for a period of time. This is because the blades of the scissors become blunt after long-term use, and the gap between the two blades becomes larger. At this time, the blades need to be re-grinded and the hinges of the two scissors bodies need to be reinforced. However, the hinges of general scissors are not removable, which also makes it impossible for the scissors to be separated to grind both sides of the blade edge of the knife, especially the flat side, because the flat side and the hinge are on the same plane, and grinding one side alone cannot achieve a good effect. In addition, although some scissors on the hinge can be adjusted for tightness, since the scissors rotate in two directions, they often become loose and need to be adjusted from time to time. Summary of the invention
[0003] The object of the present invention is to provide a shearing tool which can be quickly decomposed and can always maintain the bite force in view of the above-mentioned deficiencies in the prior art.
[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: a quick-release scissors, comprising a first scissors body, a second scissors body and a hinged part, the first scissors body and the second scissors body use the hinged part as the axis core for relative rotation between the two, and the two scissors bodies each include a knife part and a handle part, characterized in that: the handle part of the second scissors body is provided with a convex column, the handle part of the first scissors body has a groove corresponding to the convex column of the second handle part, the two scissors bodies of the hinged part are each embedded in two magnets with mutually attracted poles, and a movable ring is surrounded by the magnet, and the ring is embedded in the corresponding parts of the two scissors bodies, each with a groove to ensure that the ring can slide freely in the space formed by the grooves of the two scissors bodies.
[0005] The shear body and the ring-shaped object are made of non-magnetic materials in order not to affect the distribution of magnetic lines of force of the magnet.
[0006] The total thickness of the grooves of the hinged parts of the two scissors is greater than the thickness of the ring and also greater than the thickness of the two magnets. When the two scissors are assembled, it can be ensured that there is a gap as small as possible between the two mutually attractive magnets embedded in the scissors, so that the two magnetic poles do not produce friction when the scissors rotate. At the same time, there is a certain gap between the parts of the ring and the parts in contact with it, so that the two scissors can rotate around the hinge as the center and can be freely disassembled and decomposed.
[0007] Preferably, the groove of the handle of the first scissor body is designed to penetrate the handle to form a groove. Such a design allows the edge of the groove to slide on the inclined surface of the boss to separate the two scissor bodies when the opening and closing degree of the scissors is greater than a certain angle. In addition, the groove can also be designed to be composed of two inclined surfaces with opposite angles. And the inclined angle of one of the two inclined surfaces is greater than the other, and the total inclined surface length of the inclined surface with a smaller angle is much greater than the other inclined surface. Such a design gradually gives a separation force to the two scissor bodies during the closing process of the scissor. Since the magnetic pole attraction of the hinge is equivalent to a fulcrum, the knife part on the other side of the hinge part opposite to the groove forms a gradually increasing closing force, which is equivalent to gradually increasing the palm of the hand to use opposite forces on the two handles of the scissor to ensure normal shearing when we use the scissors to ensure the bite force of the knife part. When we increase the opening and closing of the scissors to a certain angle, the boss contacts the inclined surface with a larger angle. Due to the large height of the inclined surface, the distance between the two scissor bodies is separated by a large distance. And since there is no hard connection between the two scissor bodies of the scissors, only a small force is needed to completely separate the two scissor bodies. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 A top view of a first embodiment of the present invention; Figure 2 It is an exploded bottom view of a first embodiment of the present invention; Figure 3 for Figure 1 A sectional view of part A; Figure 4 A cross-sectional view of a hinge portion of a first embodiment of the present invention; Figure 5 It is a top exploded view of a second embodiment of the present invention. DETAILED DESCRIPTION
[0009] Now combined with the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 The first embodiment of the invention is further described. A quick-release scissors includes a first scissor body 1, a second scissor body 2 and a hinged portion 10. The first scissor body 1 and the second scissor body 2 use the hinged portion 10 as the axis core for relative rotation between the two scissor bodies. The two scissor bodies each include a knife portion and a handle portion. A protrusion 23 is provided on the handle portion of the second scissor body 2. The handle portion of the first scissor body 1 corresponds to the protrusion 23 of the handle portion of the second scissor body 2. The two scissor bodies of the hinged portion 10 are each embedded with a magnet 5 and 7 with two magnetic poles attracting each other. A movable ring 6 is surrounded by the magnet. The ring 6 is embedded in the corresponding positions of the two scissor bodies, each with a groove 8 and 9 to ensure that the ring can slide freely in the space formed by the grooves of the two scissor bodies.
[0010] The shear body and the ring 6 are made of non-magnetic conductive materials in order not to affect the distribution of magnetic field lines of the magnet.
[0011] The total thickness of the grooves 8 and 9 of the hinge 10 of the two scissor bodies is greater than the thickness of the ring and also greater than the thickness of the two magnets 5 and 7. Figure 4 When the two scissors are assembled, it can be ensured that there is a gap as small as possible between the two mutually attractive magnets 5 and 7 embedded in the scissors, so that the two magnetic poles do not produce friction when the scissors rotate. At the same time, there is a certain gap between the parts of the ring 6 that contact it, so that the two scissors 1 and 2 of the scissors can rotate around the hinge 10 and can be freely disassembled.
[0012] In addition, the groove 24 is designed to be composed of two inclined surfaces with opposite angles. The angle of one of the two inclined surfaces is greater than the other, and the total length of the inclined surface with a smaller angle is much greater than the other inclined surface. Figure 3 With this design, when the scissors are closed, the smaller angle of the protrusion 23 and the groove 24 contact each other, and the two scissor bodies are gradually separated by a force. Since the magnetic pole attraction of the hinge 10 is equivalent to a fulcrum, according to the principle of leverage, the knife part on the other side of the hinge 10 opposite to the groove 24 forms a gradually increasing closing force, which is equivalent to gradually increasing the palm of the hand on the two handles of the scissors to ensure the normal bite of the shears when we use the scissors. Use opposite forces to ensure the bite force of the knife part, and when we increase the opening and closing of the scissors to a certain angle, after the protrusion 23 and the groove 24 with a larger angle contact, the distance between the two scissor bodies is separated by a larger distance due to the large height of the inclined surface, and since the two scissor bodies of the scissors are not hard-connected, only a small force is needed to completely separate the two scissor bodies, so that the two scissor bodies 1 and 2 can grind the two knife surfaces separately.
[0013] Attached Figure 5 This is a top view of the second embodiment. The groove on the handle of the first scissors body 1 is designed to pass through the handle to form a groove. This design allows the edge of the groove to slide on the inclined surface of the protrusion to separate the two scissors bodies when the opening and closing degree of the scissors is greater than a certain angle. This design makes the production of the scissors relatively simple and convenient and can also achieve the effect of rapid disassembly.
[0014] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A quick-release scissors, comprising a first scissor body, a second scissor body and a hinged portion, wherein the first scissor body and the second scissor body use the hinged portion as an axis core for relative rotation between the two scissor bodies, and the two scissor bodies each include a blade portion and a handle portion, characterized in that: The handle of the second scissors body is provided with a convex column, and the handle of the first scissors body has a groove corresponding to the convex column of the second handle. The two scissors bodies of the hinged part are each embedded in a magnet with two magnetic poles attracting each other, and a movable ring is surrounded by the magnet. The ring is embedded in the corresponding parts of the two scissors bodies and has a groove to ensure that the ring can be freely embedded in the handle body.
2. A quick-release shears according to claim 1, characterized in that: The shear body and the ring-shaped object are both made of non-magnetic conductive materials.
3. The quick-release shears according to claim 1, characterized in that: The total thickness of the grooves of the hinged parts of the two scissor bodies is greater than the thickness of the ring and the thickness of the two magnets.
4. The quick-release shears according to claim 1, characterized in that: The groove of the handle of the first scissors body passes through the handle to form a slot.
5. The quick-release shears according to claim 1, characterized in that: The groove of the first scissor body handle is composed of two inclined surfaces with opposite inclined surface angles.
6. The quick-release shears according to claim 5, characterized in that: One of the two inclined surfaces of the groove of the first scissor body handle has an inclined angle greater than the other, and the total length of the inclined surface with a small inclined angle is much greater than the other inclined surface.