A rivet for a pair of scissors

Abstract

This utility model discloses a scissor rivet, relating to the field of rivet technology, comprising: an end seat with a threaded groove at its bottom and an installation groove at its top; and a retractable assembly, including a sliding seat that slides inside the installation groove and an external threaded seat threadedly connected to the inner side of the threaded groove. A rivet shaft is fixed to the top of the sliding seat, and a truncated cone is fixed to the top of the external threaded seat. A tool insertion groove is provided at the bottom of the external threaded seat. This utility model allows the external threaded seat to rotate by inserting a tool head into the tool insertion groove. The external threaded seat moves within the threaded groove, thereby causing the truncated cone to move up and down. The upward movement of the truncated cone pushes several rivet shafts outward, increasing the overall diameter of the rivet shafts. The downward movement of the truncated cone, through the attraction between the negative and positive magnetic plates, causes the several rivet shafts to close, reducing the overall diameter of the rivet shafts, thus adapting to different sizes of scissors and improving the rivet's applicability.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, specifically to a scissor rivet. Background Technology

[0002] A scissor rivet is a metal fastener used to connect the two blades of scissors. It serves as a fixation and pivot, allowing the blades to rotate at the point where the rivet passes through, enabling the scissors to open and close smoothly for cutting operations. It is usually made of steel, copper, or other wear-resistant and strong metals. It is used to connect the blades of two scissors, ensuring that they maintain a certain tight fit during movement, while providing the necessary axis of rotation. It is sturdy and durable, and can withstand the impact and wear during cutting.

[0003] A document with publication number CN206830598U discloses a scissor rivet. The limiting post has a cylindrical structure, and a fixed shaft is mounted on the upper end of the limiting post. The central axis of the fixed shaft coincides with the central axis of the limiting post. An upper fixed post is mounted on the upper end of the fixed shaft, and the central axis of the upper fixed post coincides with the central axis of the fixed shaft. Limiting teeth are distributed on the outer side of the upper fixed post. The limiting teeth are prism structures with a rectangular cross-section. The upper fixed post is protected by adding an outer limiting sleeve to the outside of the traditional scissor rivet. This design makes it easy to replace the outer limiting sleeve after it is damaged, thereby greatly improving the service life of the utility model and solving the problem that traditional equipment cannot be used for a long time. In addition, the design of the mounting surface facilitates the installation of scissors. This design solves the problem that traditional scissors may not be able to be assembled due to small errors during the assembly process. In addition, the design of the rubber pad serves to protect the limiting post.

[0004] The aforementioned scissor rivets have a fixed and unchangeable diameter for the fixing post that passes through the scissor insertion hole. However, different sizes of scissors have different diameter insertion holes. Rivets with a fixed diameter cannot be used with multiple types of scissors, resulting in low applicability. Utility Model Content

[0005] The purpose of this utility model is to provide a scissor rivet that solves the problem that existing scissor rivets have a single, unchangeable diameter for the fixing post used to pass through the scissor insertion hole, making them unsuitable for use with various types of scissors and resulting in low applicability.

[0006] This utility model solves the above-mentioned technical problems through the following technical solution: A scissor rivet, comprising: An end cap is provided, wherein a threaded groove is provided at the bottom of the end cap and a mounting groove is provided at the top of the end cap; The retractable assembly includes a sliding seat that slides inside the mounting groove and an external threaded seat that is threaded to the inside of the threaded groove. A rivet shaft is fixed to the top of the sliding seat, and a truncated cone is fixed to the top of the external threaded seat.

[0007] Preferably, the bottom of the external threaded seat is provided with a tool insertion groove.

[0008] Preferably, the bottom of the rivet shaft is provided with an inclined groove, the inner surface of the inclined groove is fixed with a positive magnetic sheet, and the outer surface of the truncated cone is fixed with a negative magnetic sheet.

[0009] Preferably, the positive magnetic sheet has an N pole and the negative magnetic sheet has an S pole.

[0010] Preferably, an anti-rotation strip is fixed to the outer surface of the end seat.

[0011] Preferably, one end of the rivet shaft is provided with a rivet cap.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By inserting the tool head into the tool slot and rotating the external threaded seat, the external threaded seat will move in the threaded groove, thereby causing the conical platform to move up and down. When the conical platform moves up, it will push several rivet shafts to open outward, increasing the overall diameter of the rivet shafts. When the conical platform moves down, the attraction between the negative and positive magnetic plates will cause the several rivet shafts to close, reducing the overall diameter of the rivet shafts, so as to adapt to the use of scissors of different sizes and improve the applicability of rivets. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram showing the disassembled parts of this utility model; Figure 3 This is a cross-sectional view of the end head seat and the retracting / expanding assembly of this utility model.

[0014] The numbers in the diagram represent: 1. End seat; 2. Threaded groove; 3. Mounting groove; 4. Expanding / retracting assembly; 41. Sliding seat; 42. External thread seat; 43. Rivet shaft; 44. Frustum; 45. Tool insertion groove; 46. Inclined groove; 47. Positive magnetic sheet; 48. Negative magnetic sheet; 5. Anti-rotation strip; 6. Rivet cap. Detailed Implementation

[0015] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0016] This embodiment provides a technical solution: a scissor rivet, such as... Figure 1-3As shown, the device includes an end cap 1 and a retractable assembly 4. The end cap 1 has a threaded groove 2 at its bottom and four mounting slots 3 arranged in a circular array at its top, with equal spacing between them. At least three anti-rotation strips 5 arranged in a circular array are fixed to the outer surface of the end cap 1. The retractable assembly 4 includes a sliding seat 41 that slides inside the mounting slots 3 and an external threaded seat 42 threadedly connected to the inner side of the threaded grooves 2. The bottom of the external threaded seat 42 has a tool insertion slot 45. The external threaded seat 42 is rotated by inserting a tool head into the tool insertion slot 45. While rotating the external threaded seat 42, one hand holds the end cap. The end seat 1 is prevented from rotating with the external thread seat 42 by the anti-rotation strip 5 and the finger. The number of sliding seats 41 is the same as the number of mounting slots 3. The top of the sliding seat 41 is fixed with a rivet shaft 43. The four rivet shafts 43 are cylindrical. One end of the rivet shaft 43 is provided with a rivet cap 6. The top of the external thread seat 42 is fixed with a truncated cone 44. The bottom of the rivet shaft 43 is provided with an inclined groove 46. The inner surface of the inclined groove 46 is fixed with a positive magnetic sheet 47. The outer surface of the truncated cone 44 is fixed with a negative magnetic sheet 48. The positive magnetic sheet 47 has the N pole and the negative magnetic sheet 48 has the S pole.

[0017] In use: For larger scissors and access holes, insert the rivet shaft 43 into the access hole of the scissors. Hold the end seat 1 with one hand and take the tool with the other hand. Insert the tool head into the tool insertion slot 45 and rotate the external thread seat 42. Use the anti-rotation strip 5 and the resistance between your fingers to prevent the end seat 1 from rotating with the external thread seat 42. When the external thread seat 42 rotates, it will move in the thread groove 2, thereby driving the cone 44 to move upward. When the cone 44 moves upward, it will push several rivet shafts 43 to slide along the mounting groove 3 through the sliding seat 41, so that a certain gap is opened between the several rivet shafts 43 until the outer surface of the rivet shaft 43 is in contact with the inner surface of the access hole on the scissors. Then install the rivet cap 6 on one end of the rivet shaft 43. For smaller scissors and access holes, the external thread seat 42 can be rotated first to move the cone 44 downward. The cone 44 will cause several rivet shafts 43 to slide along the mounting groove 3 through the sliding seat 41 and close together by the attraction between the negative magnetic plate 48 and the positive magnetic plate 47. Then, the rivet shafts 43 can be inserted into the access hole on the scissors to adapt to different sizes of scissors, making it highly adaptable. Finally, the rivet cap 6 can be installed on one end of the rivet shaft 43.

[0018] The above are merely preferred embodiments of this utility model and are illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of this utility model, all of which will fall within the protection scope of this utility model.

Claims

1. A scissor rivet, characterized in that, include: End seat (1), the bottom of the end seat (1) is provided with a threaded groove (2), and the top of the end seat (1) is provided with a mounting groove (3). The expansion assembly (4) includes a sliding seat (41) that slides inside the mounting groove (3) and an external thread seat (42) that is threaded to the inside of the threaded groove (2). A rivet shaft (43) is fixed to the top of the sliding seat (41), and a truncated cone (44) is fixed to the top of the external thread seat (42).

2. The scissor rivet as described in claim 1, characterized in that, The bottom of the external threaded seat (42) is provided with a tool insertion slot (45).

3. The scissor rivet as described in claim 2, characterized in that, The bottom of the rivet shaft (43) is provided with an inclined groove (46), the inner surface of the inclined groove (46) is fixed with a positive magnetic sheet (47), and the outer surface of the truncated cone (44) is fixed with a negative magnetic sheet (48).

4. The scissor rivet as described in claim 3, characterized in that, The positive magnetic sheet (47) has an N pole magnetism, and the negative magnetic sheet (48) has an S pole magnetism.

5. The scissor rivet as described in claim 1, characterized in that, An anti-rotation strip (5) is fixed on the outer surface of the end seat (1).

6. The scissor rivet as described in claim 1, characterized in that, A rivet cap (6) is provided at one end of the rivet shaft (43).

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