CN220185550U - Locking umbrella-type rivet that moves - Google Patents
Locking umbrella-type rivet that moves Download PDFInfo
- Publication number
- CN220185550U CN220185550U CN202223031076.XU CN202223031076U CN220185550U CN 220185550 U CN220185550 U CN 220185550U CN 202223031076 U CN202223031076 U CN 202223031076U CN 220185550 U CN220185550 U CN 220185550U
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- Prior art keywords
- rivet
- umbrella
- gear shaft
- core
- cylinder
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
The utility model relates to the technical field of hardware processing, in particular to an anti-loosening umbrella-shaped rivet; the rivet comprises a rivet core and a rivet body, wherein the rear end of the rivet core is provided with a gear shaft, the rear end of the gear shaft is provided with a round head, the periphery of the gear shaft is provided with a tooth part, the rivet body comprises an umbrella-shaped shield, a reinforcing cylinder and a cylinder body, the umbrella-shaped shield, the reinforcing cylinder and the cylinder body jointly form a through hole, the inside diameter of the through hole is matched with the rivet core, and at least one slit is formed in the side wall of the cylinder body; the riveting body is provided with the reinforcing cylinder, so that the stamping distance is increased, the round head is not easy to press into the mounting hole of the plate, and therefore, larger stamping force can be used, and the effects of higher riveting strength and difficult loosening of a riveting structure are finally achieved; in addition, the gear shaft is arranged, so that the friction force between the nail core and the rivet body can be effectively increased after the gear shaft is pressed into the cylinder body, and the breaking of the breaking point can be realized by rotating the front section of the nail core more easily.
Description
Technical Field
The utility model relates to the technical field of hardware processing, in particular to an anti-loosening umbrella-shaped rivet.
Background
Umbrella-type rivets generally comprise a barrel (i.e., a rivet body) and a mandrel, wherein the front end of the barrel is provided with an umbrella-type shield, the tail end of the mandrel is provided with a round head, and the mandrel is further provided with a breaking point for breaking the connection with the round head. The working principle is that the round head is pressed into the cylinder body (or the front end of the nail core is pulled) by external force, so that the cylinder body expands, the plate is clamped between the expanding position of the cylinder body and the umbrella-shaped shield, and then the breaking point is broken by pulling or rotating the nail core (as shown in figure 1).
The prior art has the following defects: 1. the surface of the nail core is smooth, so when the breaking point is twisted by using a mode of rotating the front section of the nail core, the friction force of the rear section of the nail core is insufficient to rotate, and the breaking point is difficult to break; 2. the whole cylinder body is a straight cylinder, so whether riveting is tight or not completely depends on the force of pressing the round head into the cylinder body, the force is light and can lead to loose riveting, the force is heavy and can easily lead to the round head to be extruded into a mounting hole of a plate, and even the mounting hole is extruded and exploded.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an anti-loosening umbrella-shaped rivet.
The technical scheme of the utility model is as follows:
the utility model provides an anti-loosening umbrella-shaped rivet, it includes the nail core and rivets the body, the nail core rear end is provided with the gear shaft, and the gear shaft rear end is provided with the button head, and the gear shaft periphery is provided with tooth portion, rivet the body including umbrella-shaped shield, reinforcing cylinder and barrel, umbrella-shaped shield, reinforcing cylinder and barrel are formed with a through-hole jointly, and the through-hole internal diameter matches the nail core setting, a slit has been seted up at least on the barrel lateral wall.
Further, the maximum diameter of the round head is larger than the inner diameter of the through hole, and the maximum diameter of the round head is smaller than or equal to the outer diameter of the reinforcing cylinder, so that the rivet body is stressed when the round head is extruded into the cylinder body, the plate mounting holes at the periphery are not stressed, and the possibility that the mounting holes are extruded and exploded is reduced.
Further, the maximum outer diameter of the gear shaft is equal to the maximum diameter of the round head, and the cylinder body in the rivet is necessarily designed by matching with the round head, so that the gear shaft cannot enter the cylinder body easily when being too large, and the friction force cannot be increased when being too small.
Further, the nail core is provided with a breaking point, so that the round head and the nail core are separated after riveting.
Further, the rivet core is made of aluminum alloy with tensile strength larger than 1070Nmin and shear strength larger than 780Nmin, and the rivet body is made of aluminum, so that the rivet core is a main force bearing component for riveting, and has high mechanical strength requirement.
The beneficial effects of the utility model are as follows: the riveting body is provided with the reinforcing cylinder, so that the stamping distance is increased, the round head is not easy to press into the mounting hole of the plate, and therefore, larger stamping force can be used, and the effects of higher riveting strength and difficult loosening of a riveting structure are finally achieved; in addition, the gear shaft is arranged, so that the friction force between the nail core and the rivet body can be effectively increased after the gear shaft is pressed into the cylinder body, and the breaking of the breaking point can be realized by rotating the front section of the nail core more easily.
Drawings
FIG. 1 is a prior art riveting schematic;
FIG. 2 is a schematic diagram of the structure of the present utility model.
In the figure, 1, a nail core; 2. riveting a body; 3. umbrella-shaped shield; 4. a reinforcing cylinder; 5. a cylinder; 6. a gear shaft; 7. round head; 8. a slit; 9. teeth.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 2, the locking umbrella-shaped rivet comprises a rivet core 1 and a rivet body 2, wherein a gear shaft 6 is arranged at the rear end of the rivet core 1, a round head 7 is arranged at the rear end of the gear shaft 6, a tooth part 9 is arranged on the periphery of the gear shaft 6, the rivet body 2 comprises an umbrella-shaped shield 3, a reinforcing cylinder 4 and a cylinder body 5, a through hole is formed in the umbrella-shaped shield 3, the reinforcing cylinder 4 and the cylinder body 5 together, the inside diameter of the through hole is matched with that of the rivet core 1, and at least one slit 8 is formed in the side wall of the cylinder body 5.
The maximum diameter of the round head 7 is larger than the inner diameter of the through hole, and the maximum diameter of the round head 7 is smaller than or equal to the outer diameter of the reinforcing cylinder 4.
The maximum outer diameter of the gear shaft 6 is equal to the maximum diameter of the knob 7.
The staple core 1 is provided with breaking points.
The rivet core 1 is made of aluminum alloy with tensile strength larger than 1070Nmin and shear strength larger than 780Nmin, and the rivet body 2 is made of aluminum.
The application method of the utility model comprises the following steps:
1) Reversely inserting the rivet body into the mounting hole of the plate (namely, inserting the cylinder body towards the mounting hole);
2) Inserting the nail core into the cylinder from the other side of the plate mounting hole;
3) The gear shaft and the round head are pressed into the cylinder body through the riveting tool, the cylinder body is easy to open due to the existence of the slit, the formation of a riveting structure is ensured, and the pressed gear shaft is propped against the reinforcing cylinder and cannot go deep into the mounting hole any more due to the fact that the reinforcing cylinder is embedded into the mounting hole, so that the possibility that the mounting hole is extruded and exploded is reduced;
4) And (5) screwing off or breaking the nail core to finish riveting.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (5)
1. An anti-loosening umbrella-shaped rivet, which is characterized in that: the rivet comprises a rivet core and a rivet body, wherein the rear end of the rivet core is provided with a gear shaft, the rear end of the gear shaft is provided with a round head, the periphery of the gear shaft is provided with a tooth part, the rivet body comprises an umbrella-shaped shield, a reinforcing cylinder and a cylinder body, a through hole is formed in the umbrella-shaped shield, the reinforcing cylinder and the cylinder body together, the inner diameter of the through hole is matched with the rivet core, and at least one slit is formed in the side wall of the cylinder body.
2. An anti-loosening umbrella rivet as set forth in claim 1, wherein: the maximum diameter of the round head is larger than the inner diameter of the through hole, and the maximum diameter of the round head is smaller than or equal to the outer diameter of the reinforcing cylinder.
3. An anti-loosening umbrella rivet as set forth in claim 2, wherein: the maximum outer diameter of the gear shaft is equal to the maximum diameter of the round head.
4. A locking umbrella rivet as set forth in claim 3 wherein: the staple core is provided with a breaking point.
5. An anti-loosening umbrella rivet as set forth in claim 4, wherein: the rivet core is made of aluminum alloy with tensile strength larger than 1070Nmin and shear strength larger than 780Nmin, and the rivet body is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223031076.XU CN220185550U (en) | 2022-11-15 | 2022-11-15 | Locking umbrella-type rivet that moves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223031076.XU CN220185550U (en) | 2022-11-15 | 2022-11-15 | Locking umbrella-type rivet that moves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220185550U true CN220185550U (en) | 2023-12-15 |
Family
ID=89106000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223031076.XU Active CN220185550U (en) | 2022-11-15 | 2022-11-15 | Locking umbrella-type rivet that moves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220185550U (en) |
-
2022
- 2022-11-15 CN CN202223031076.XU patent/CN220185550U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |