Set screw with self-locking function
By designing a tightening screw with self-locking function, using components such as rivet sleeves, abutment rings and threaded rods, the inconvenience of core pulling rivets in carrying and using and insufficient clamping force are solved, and a stable riveting effect is achieved .
Patent Information
- Application Number
- CN202420384246.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing core pull-out rivets are inconvenient when workers carry and use them, and the clamping force is insufficient, resulting in poor riveting effect and unstable connection of the fixtures.
A self-locking fixing screw is designed, including a rivet sleeve, abutment ring, sleeve end cap, threaded rod, cross groove, hexagon groove, bending, expansion and deformation part, through a Phillips screwdriver or hexagon screwdriver Rotate the threaded rod to complete the riveting, and use lock blocks, lock grooves and springs to achieve self-locking to ensure stability after riveting.
The riveting process is realized that is convenient for manual operation, and the stability after riveting is ensured through the self-locking mechanism, avoiding loose rivets, and improving the connection strength of the fixtures.
Smart Images
Figure CN222141746U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of set screws, in particular to a set screw with a self-locking function. Background Art
[0002] Blind rivets are a type of rivet used for single-sided riveting, but they must be riveted using a special tool - a rivet gun (manual, electric, or pneumatic). During riveting, the rivet core is pulled by a special rivet gun to expand the rivet body and play a riveting role. Existing rivet guns are not convenient for workers to carry, and it is not convenient to use rivets when workers need to perform riveting work. In addition, the installation clamping force of ordinary blind rivets has certain limitations, and the clamping force often does not meet the requirements, resulting in poor riveting effect, and the rivets are easy to loosen, thus affecting the connection of the fixings. For this reason, we propose a set screw with a self-locking function. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a set screw with a self-locking function to solve the problems raised in the above background technology.
[0004] The utility model discloses a set screw with a self-locking function, comprising a rivet sleeve, an abutment ring and a sleeve end cap, an anti-corrosion layer is provided on the inner side of the rivet sleeve, a reinforcing rib is fixedly provided on the inner side of the anti-corrosion layer, a groove is provided inside the abutment ring, a threaded rod is slidably connected in the groove, the threaded rod is threadedly connected to the inside of the rivet sleeve, a cross groove is provided on the top of the threaded rod, a hexagonal groove is provided outside the cross groove, a connecting block is provided below the threaded rod, locking grooves are symmetrically provided on both sides of the connecting block, a spring is provided on the inner wall of the locking groove, the other end of the spring is connected to the locking block, an open groove is provided inside the sleeve end cap, the locking block is slidably connected to the open groove and the locking groove, and the lower end of the connecting block is connected to the expansion part.
[0005] In the above solution, anti-slip grooves are provided on the outer side of the rivet sleeve.
[0006] In the above solution, a deformation portion is provided below the rivet sleeve.
[0007] In the above solution, the expansion part is slidably connected to the deformation part.
[0008] In the above solution, the inner wall of the anti-corrosion layer is filled with quicklime.
[0009] In the above solution, a rubber pad is provided at the lower end of the sleeve end cap.
[0010] In the above solution, a bending portion is provided between the threaded rod and the connecting block.
[0011] The advantages and beneficial effects of the utility model are as follows: the utility model provides a set screw with a self-locking function. Through the abutment ring, the groove, the hexagonal groove, the cross groove, the threaded rod, the bending part, the expansion part and the deformation part, the worker can rotate the threaded rod by turning a cross screwdriver or a hexagonal screwdriver to complete the riveting process, which is convenient for manual operation; through the sleeve end cap, the opening groove, the connecting block, the locking groove, the locking block and the spring, the locking block and the locking groove are engaged and locked with each other to complete the self-locking operation, thereby ensuring the stability after riveting. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model.
[0015] Figure 3 It is a schematic diagram of the internal structure of the rivet sleeve of the utility model.
[0016] In the figure: 1 rivet sleeve, 11 anti-slip groove, 12 deformation part, 13 anti-corrosion layer, 14 reinforcing rib, 2 abutment ring, 21 groove, 22 hexagonal groove, 23 cross groove, 24 threaded rod, 25 bending part, 3 sets of end caps, 31 rubber pads, 32 open grooves, 4 connecting blocks, 41 locking grooves, 42 springs, 43 locking blocks, 44 expansion parts. DETAILED DESCRIPTION
[0017] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0018] like Figure 1-3 As shown, the utility model is a set screw with a self-locking function, comprising a rivet sleeve 1, an abutment ring 2 and a sleeve end cap 3. An anti-corrosion layer 13 is provided on the inner side of the rivet sleeve 1, and the inner wall of the anti-corrosion layer 13 is filled with quicklime. A reinforcing rib 14 is fixedly provided on the inner side of the anti-corrosion layer 13. The interior of the rivet sleeve 1 is fixedly connected with the anti-corrosion layer 13, and the anti-corrosion layer 13 is filled with quicklime to absorb water to prevent rust. The interior of the anti-corrosion layer 13 is fixedly connected with the reinforcing rib 14 to ensure the strength of the rivet sleeve 1.
[0019] A groove 21 is provided inside the abutting ring 2, and a threaded rod 24 is slidably connected in the groove 21. The threaded rod 24 is threadedly connected to the inside of the rivet sleeve 1. A cross groove 23 is provided on the top of the threaded rod 24, and a hexagonal groove 22 is provided outside the cross groove 23. The cross groove 23 and the hexagonal groove 22 are provided on the top of the threaded rod 24. Workers can use a cross screwdriver or a hexagonal screwdriver to screw the threaded rod 24, which can avoid the need for a rivet gun to rivet between two objects when using traditional rivets. The rivet gun is not easy to carry, but the cross screwdriver or the hexagonal screwdriver is easy for workers to carry. When a cross screwdriver or a hexagonal screwdriver starts to rotate the top of the threaded rod 24, the threaded rod 24 is threadedly rotated and connected to the inside of the rivet sleeve 1, and the threaded rod 24 passes through the sleeve end cap 3. When the threaded rod 24 starts to rotate, the threaded rod 24 starts to move upward, and the expansion part 44 connected to the bottom of the threaded rod 24 through the connecting block 4 starts to move upward. The lower end of the connecting block 4 is connected to the expansion part 44. A deformation part 12 is provided below the rivet sleeve 1. The expansion part 44 is slidably connected to the deformation part 12, so that the expansion part 4 starts to move upward and gradually squeezes the deformation part 12, so that the deformation part 12 is deformed and opened, thereby realizing riveting.
[0020] A connecting block 4 is provided below the threaded rod 24, and locking grooves 41 are symmetrically provided on both sides of the connecting block 4. A spring 42 is provided on the inner wall of the locking groove 41, and the other end of the spring 42 is connected to a locking block 43. An open groove 32 is provided inside the sleeve end cap 3, and the locking block 43 is slidably connected to the open groove 32 and the locking groove 41. When the threaded rod 24 starts to gradually move upward inside the rivet sleeve 1, during the upward movement of the threaded rod 24, the locking groove 41 on the side wall of the connecting block 4 can synchronously start to move upward, and the spring 42 inside the locking groove 41 is in a compressed state. When the locking groove 41 moves to the position of the open groove 32, the spring 42 can push the locking block 43 to slide outward, and the locking block 43 moves to the inside of the open groove 32. At this time, the riveting work is completed, and the locking block 43 can also complete the self-locking work, which can ensure the stability of the rivet in riveting two objects and avoid separation at the riveted joint.
[0021] In the above solution, the outer side of the rivet sleeve 1 is provided with anti-skid patterns 11 , and the anti-skid patterns 11 increase the friction with the hole of the riveted part, thereby improving the fixing effect of the rivet sleeve 1 .
[0022] In the above solution, a rubber pad 31 is provided at the lower end of the sleeve end cap 3, and the rubber pad 31 can improve the tightness between the sleeve end cap 3 and the riveted part.
[0023] In the above scheme, a bending portion 25 is provided between the threaded rod 24 and the connecting block 4. The threaded rod 24 and the bending portion 25 are rotatably connected via a bearing, so that when the threaded rod 24 starts to move upward, the connecting block 4 below can move horizontally upward to ensure that the locking groove 41 and the opening groove 32 are aligned. The provided bending portion 25 can facilitate breaking the threaded rod 24. After the locking groove 41 and the opening groove 32 are locked, the bending portion 25 is located inside the groove. The threaded rod 24 can be bent by an external tool, and workers do not need cumbersome tools to complete the riveting and bending work.
[0024] Working principle:
[0025] When working with this set screw with a self-locking function, the rivet sleeve 1 is passed through the hole of the object to be riveted. The user selects a hexagonal wrench or a cross wrench through an external tool to rotate the top of the threaded rod 24. The threaded rod 24 can start to move upward inside the riveting sleeve 1. The expansion portion 44 provided at the bottom of the threaded rod 24 can squeeze and rivet the deformation portion 12. After the locking groove 41 on the side of the connecting block 4 reaches the position of the opening groove 32, the internal spring 42 pushes the locking block 43 into the opening groove 32 for self-locking. At the same time, the bending portion 25 below the threaded rod 24 is in the groove 21 of the abutment ring 2. The worker can complete the riveting work by bending the bending portion 25.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A set screw with a self-locking function, comprising a rivet sleeve (1), an abutment ring (2) and a sleeve end cap (3), It is characterized in that The rivet sleeve (1) is provided with an anti-corrosion layer (13) on the inner side, and a reinforcing rib (14) is fixedly provided on the inner side of the anti-corrosion layer (13). The abutment ring (2) is provided with a groove (21) inside, and a threaded rod (24) is slidably connected in the groove (21). The threaded rod (24) is threadedly connected to the inside of the rivet sleeve (1). A cross groove (23) is provided on the top of the threaded rod (24), and a hexagonal groove (22) is provided outside the cross groove (23). A connecting block (4) is provided below the threaded rod (24). Locking grooves (41) are symmetrically provided on both sides of the connecting block (4). A spring (42) is provided on the inner wall of the locking groove (41), and the other end of the spring (42) is connected to the locking block (43). An open groove (32) is provided inside the sleeve end cap (3), and the locking block (43) is slidably connected to the open groove (32) and the locking groove (41). The lower end of the connecting block (4) is connected to the expansion part (44).
2. A set screw with self-locking function according to claim 1, It is characterized in that The outer side of the rivet sleeve (1) is provided with anti-slip grooves (11).
3. A set screw with self-locking function according to claim 1, It is characterized in that A deformation portion (12) is provided below the rivet sleeve (1).
4. A set screw with self-locking function according to claim 1, It is characterized in that The expansion portion (44) is slidably connected to the deformation portion (12).
5. A set screw with self-locking function according to claim 1, It is characterized in that The inner wall of the anti-corrosion layer (13) is filled with quicklime.
6. A set screw with self-locking function according to claim 1, It is characterized in that A rubber pad (31) is provided at the lower end of the sleeve end cap (3).
7. A set screw with self-locking function according to claim 1, It is characterized in that A bending portion (25) is provided between the threaded rod (24) and the connecting block (4).