Detachable rivet structure

Abstract

The utility model relates to the technical field of rivets, and discloses a detachable rivet structure which comprises a rivet sleeve, a rivet cap is installed at the upper end of the rivet sleeve, a central through hole is formed in the upper end of the rivet cap, and a cross-shaped groove is formed in the outer side of the central through hole. According to the detachable rivet structure, a rivet is installed through a riveting gun, after the rivet is installed, a rivet core is pulled out by the riveting gun, an object is fixed through a rivet cap above the object and a rivet sleeve below the object, and a rivet head of the rivet sleeve is pulled by the rivet core to deform. And then the rivet cap is rotated, the ring groove formed in the rivet cap can drive the rivet cap to be broken due to rotation torsion, the rivet cap is broken, so that the upper portion of an object is not fixed, the deformed rivet sleeve on the lower portion can be directly taken down, the rivet cap does not need to be ground away through a grinding machine, and the practicability of the detachable rivet structure is improved.

Description

Technical Field

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

[0002] A rivet is a nail-shaped object used to connect two parts with through holes and a cap at one end. In riveting, the parts being riveted are connected by their own deformation or interference fit. There are many types of rivets, and they are not limited to any particular form. It is the oldest known method of metal connection, dating back to the earliest use of malleable metals. Expansion rivets are generally used for fastening guardrails, awnings, air conditioners, etc., to materials such as cement and brick. The principle is to use the friction generated by the expansion caused by the wedge-shaped slope to achieve the fixing effect. Currently, the most common rivets on the market are R-type rivets, blind rivets, and pull rivets. Pull rivets generally consist of a shank and a sleeve. The shank is pulled by a rivet gun, causing the sleeve to bulge and deform to achieve the purpose of riveting.

[0003] The existing patent CN216407423U discloses a rivet comprising a rivet sleeve and a rivet shank. The rivet shank includes a tail, a rivet head, and an intermediate portion between the tail and the rivet head. The intermediate portion includes a break-off portion and a riveting portion. The riveting portion is arranged between the break-off portion and the rivet head and includes multiple grooves arranged circumferentially along the rivet shank. The integral rivet sleeve with an inner hole includes a base portion and a main body portion adjacent to the base portion. The cylindrical main body portion is provided with a first set of recesses, which includes multiple first recesses spaced at equal intervals along the circumference of the main body portion. After riveting, the rivet of this invention causes the main body portion of the rivet sleeve to bulge outward while tightly fitting with the grooves of the riveting portion of the intermediate portion of the rivet shank, thereby enhancing the sealing of the riveting and improving the waterproof and moisture-proof effect. This tight fit can also effectively prevent the rivet shank from breaking and rebounding.

[0004] However, although the existing technology, patent number CN216407423U, has a good fixing effect, it is quite troublesome to remove the rivets. Currently, a sander is often used to grind the rivet head to remove the rivet. However, most households do not have a sander, so the removal is quite troublesome. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a detachable rivet structure to solve the problem mentioned in the background art that it is troublesome to remove rivets. Currently, a sander is often used to grind the rivet head to remove the rivet, but most households do not have a sander, so the removal is troublesome.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a detachable rivet structure, including a rivet sleeve, a rivet head installed on the upper end of the rivet sleeve, a central through hole provided on the upper end of the rivet head, a cross groove provided on the outer side of the central through hole, and an annular groove provided on the outer end of the rivet sleeve near the rivet head.

[0009] Preferably, the outer end of the rivet sleeve is provided with an elongated groove, which is evenly distributed on the outer end of the rivet sleeve and is of the same size.

[0010] Preferably, a rivet core is installed inside the central through hole, and a rivet head is installed at the lower end of the rivet core.

[0011] Preferably, the rivet core has a break-off portion in the middle, and the break-off portion is a groove formed inward on the outer wall of the rivet core.

[0012] Preferably, the diameter of the rivet core is smaller than the diameter of the central through hole, and the size of the cross groove is the size that fits the Phillips screwdriver.

[0013] Preferably, the rivet head has a semi-circular shape, and the diameter of the rivet head is larger than the diameter of the rivet sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This detachable rivet structure uses a rivet gun to install rivets. After the rivets are installed, the rivet core is pulled out by the rivet gun. The item is fixed by the rivet head above and the rivet sleeve below the item, which is deformed by the rivet head pulled by the rivet core. In this patent, by setting a cross groove and a ring groove, by inserting a screwdriver into the cross groove and turning the rivet head, the ring groove inside the rivet head will cause the rivet head to break due to the rotational torque. The breakage of the rivet head causes the item to lose its fixation at the top, and the deformed rivet sleeve below can be directly removed without having to grind the rivet head with a sander, thus improving the practicality of the detachable rivet structure.

[0016] 2. During installation, the detachable rivet structure involves inserting the rivet into the connection point, then using a rivet gun to hold the rivet core and pulling it upwards. This pulls the rivet head, causing it to compress the rivet sleeve. The elongated groove at the outer end of the rivet sleeve facilitates deformation. Once the rivet sleeve expands, it secures the product. Finally, when the rivet core is lifted to a certain position by the rivet gun, it breaks off at the break-off point, completing the installation and improving the fixing effect of the detachable rivet structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view of the present utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is an enlarged structural schematic diagram of the cross-section of this utility model.

[0021] In the diagram: 1. Rivet sleeve; 2. Rivet head; 3. Center through hole; 4. Cross groove; 5. Ring groove; 6. Long groove; 7. Rivet core; 8. Rivet head; 9. Break-off section. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-Figure 4 This utility model provides a technical solution:

[0024] A detachable rivet structure includes a rivet sleeve 1, a rivet head 2 installed on the upper end of the rivet sleeve 1, a central through hole 3 provided on the upper end of the rivet head 2, a cross groove 4 provided on the outer side of the central through hole 3, and an annular groove 5 provided on the outer end of the rivet sleeve 1 near the rivet head 2.

[0025] In this embodiment, the outer end of the preferred rivet sleeve 1 is provided with a long groove 6, which is evenly distributed on the outer end of the rivet sleeve 1 and is of the same size.

[0026] In this embodiment, preferably, a rivet core 7 is installed inside the central through hole 3, and a rivet head 8 is installed at the lower end of the rivet core 7.

[0027] In this embodiment, the rivet core 7 preferably has a break-off portion 9 in the middle, and the break-off portion 9 is a groove provided inward on the outer wall of the rivet core 7.

[0028] In this embodiment, the diameter of the rivet core 7 is preferably smaller than the diameter of the central through hole 3, and the size of the cross groove 4 is the size that fits the cross screwdriver.

[0029] In this embodiment, the rivet head 8 is preferably semi-circular in shape, and the diameter of the rivet head 8 is larger than the diameter of the rivet sleeve 1.

[0030] In this embodiment, a detachable rivet structure is installed by inserting the rivet into the connection point, then using a rivet gun to cover the rivet core 7 and pulling the rivet core 7 upwards. This pulls the rivet head 8, causing the rivet head 8 to compress the rivet sleeve 1. The elongated groove 6 at the outer end of the rivet sleeve 1 facilitates deformation. Once the rivet sleeve 1 deforms and expands, it secures the product, fixing the item under the combined force of the rivet head 2 and the deformed rivet sleeve 1. Finally, when the rivet core 7 is lifted to a certain position by the rivet gun, it breaks off from the break-off portion 9, thus completing the installation. After the rivet is installed, when it is desired to remove the rivet, the worker can use a Phillips screwdriver to insert into the Phillips groove 4 on the rivet head 2. The setting of the annular groove 5 reduces the strength of the connection between the rivet head 2 and the rivet sleeve 1. When the worker rotates the Phillips screwdriver, a rotational torque is applied to the rivet head 2. Under the action of torque, the rivet head 2 can be broken, making it easy to remove the rivet head 2. After the rivet head 2 is removed, the deformed rivet sleeve 1 loses its upper fixation and can be directly removed, thus disassembling the rivet. There is no need to grind the rivet head 2 with a sander, making disassembly simple and convenient.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A detachable rivet structure, comprising a rivet sleeve (1), characterized in that: The rivet sleeve (1) is fitted with a rivet cap (2) at its upper end. The rivet cap (2) has a central through hole (3) at its upper end. A cross groove (4) is provided on the outer side of the central through hole (3). An annular groove (5) is provided on the outer end of the rivet sleeve (1) near the rivet cap (2).

2. The detachable rivet structure according to claim 1, characterized in that: The outer end of the rivet sleeve (1) is provided with a long groove (6), which is evenly distributed on the outer end of the rivet sleeve (1) and is the same size.

3. The detachable rivet structure according to claim 2, characterized in that: A rivet core (7) is installed inside the central through hole (3), and a rivet head (8) is installed at the lower end of the rivet core (7).

4. The detachable rivet structure according to claim 3, characterized in that: The rivet core (7) has a break-off portion (9) in the middle, and the break-off portion (9) is a groove provided inward on the outer wall of the rivet core (7).

5. A detachable rivet structure according to claim 4, characterized in that: The diameter of the rivet core (7) is smaller than the diameter of the central through hole (3), and the size of the cross groove (4) is the size that fits the cross screwdriver.

6. A detachable rivet structure according to claim 5, characterized in that: The rivet head (8) has a semi-circular shape, and the diameter of the rivet head (8) is larger than the diameter of the rivet sleeve (1).

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