Self-plugging rivet with high sealing performance

Abstract

The self-plugging rivet comprises a main body sleeve and a rivet core, the rivet core is inserted in the bottom end of the main body sleeve, the top of the rivet core penetrates through the top of a rivet cap to extend, the bottom end of the rivet core is fixedly connected with a rivet core head, a glue storage sleeve is arranged in the main body sleeve, the glue storage sleeve is made of fragile materials, and the glue storage sleeve is connected with the rivet core head. A first sealing washer and a second sealing washer are arranged at the upper end and the lower end of the glue storage sleeve respectively, the rivet core is sleeved with the glue storage sleeve, sealant is stored in the glue storage sleeve, and a glue opening is formed in the periphery of the main body sleeve. The glue storage casing pipe is arranged in the main casing pipe, the glue storage casing pipe is made of fragile materials and arranged on the outer side of the rivet core in a sleeved mode, sealant is stored in the glue storage casing pipe, the two ends of the glue storage casing pipe are sealed through the sealing washers, in addition, the rivet core and the main casing pipe are firmly fixed through the positioning clamping ring and the clamping block, the glue storage casing pipe is squeezed and broken in the rivet pulling process, and therefore the rivet core and the main casing pipe can not be damaged. And the sealant in the connecting piece is extruded out of the sealant opening to fill a gap between the connecting piece and the rivet.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware accessories, in particular to a blind rivet with strong sealing performance. Background Art

[0002] A rivet is a nail-shaped object used to connect two parts (or components) with a through hole and a cap at one end. During riveting, the rivet's own deformation or interference is used to connect the riveted parts. Blind rivets are a type of rivet used for single-sided riveting, but special tools must be used for riveting. This type of rivet is particularly suitable for riveting occasions where it is inconvenient to use ordinary rivets (which must be riveted from both sides). It is widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture and other products. In the relevant technology, after the common blind rivets are riveted, they only press the two sides of the two parts away from each other. There is still a gap between the inner wall of the through hole and the rivet body, and the sealing is poor, which limits its application in more fields and usage environments. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model aims to provide a blind rivet with strong sealing performance, so as to solve the defects of the existing through hole inner wall and the rivet body still having a gap and poor sealing performance. (II) Contents of the utility model

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a blind rivet with strong sealing performance, comprising a main body sleeve and a nail core, a rivet cap is fixedly connected to the top of the main body sleeve, a nail core is inserted into the bottom end of the main body sleeve, and the top of the nail core extends through the top of the rivet cap, and a nail core head is fixedly connected to the bottom end of the nail core, a glue storage sleeve is arranged inside the main body sleeve, the glue storage sleeve is made of fragile material, a first sealing gasket and a second sealing gasket are respectively arranged at the upper and lower ends of the glue storage sleeve, and the glue storage sleeve is sleeved on the outside of the nail core, sealant is stored in the glue storage sleeve, and a glue opening is opened on the outer periphery of the main body sleeve.

[0007] Preferably, the outer diameters of the first sealing gasket and the second sealing gasket are not less than the inner diameter of the main sleeve, and the inner diameters of the first sealing gasket and the second sealing gasket are not greater than the outer diameter of the nail core.

[0008] Preferably, a positioning clamp is fixedly installed at the top of the main sleeve, a slot is relatively opened on the inner side of the positioning clamp, and a clamp block is relatively arranged on the outer side of the nail core, and the clamp block passes through the bottom of the slot and engages with the top of the positioning clamp.

[0009] Preferably, a neck-breaking groove is provided on the outer periphery of the nail core.

[0010] Preferably, the outer diameter of the nail core head is larger than the inner diameter of the main body sleeve.

[0011] Preferably, the main body sleeve and the rivet cap as well as the nail core and the nail core head are all integral structures.

[0012] (III) Beneficial effects

[0013] The blind rivet with strong sealing performance provided by the utility model has the advantages that a glue storage sleeve is arranged inside the main sleeve, the glue storage sleeve is made of fragile material, and is sleeved on the outside of the nail core, and sealant is stored inside the glue storage sleeve, and both ends of the glue storage sleeve are sealed by a sealing gasket. In addition, the nail core and the main sleeve are firmly fixed by a positioning clamp ring and a clamp block. When riveting, the glue storage sleeve is squeezed and broken, and the sealant inside is squeezed out from the glue port to fill the gap between the connecting piece and the rivet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0017] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model.

[0018] In the figure: 1. main body sleeve; 11. positioning clamp ring; 12. notch; 2. rivet cap; 3. nail core; 31. broken neck groove; 32. clamping block; 4. nail core head; 5. rubber storage sleeve; 51. first sealing gasket; 52. second sealing gasket; 6. glue port. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3 The utility model provides a blind rivet with strong sealing performance, which is characterized by comprising a main body sleeve 1 and a nail core 3, a rivet cap 2 is fixedly connected to the top of the main body sleeve 1, a nail core 3 is inserted into the bottom end of the main body sleeve 1, and the top of the nail core 3 extends through the top of the rivet cap 2, and the bottom end of the nail core 3 is fixedly connected to the nail core head 4, a glue storage sleeve 5 is arranged inside the main body sleeve 1, the glue storage sleeve 5 is made of fragile material, and the first sealing gasket 51 and the second sealing gasket 52 are respectively arranged at the upper and lower ends of the glue storage sleeve 5, and the glue storage sleeve 5 is sleeved on the outside of the nail core 3, and sealant is stored in the glue storage sleeve 5, and a glue port 6 is opened on the outer periphery of the main body sleeve 1.

[0022] It should be noted that the rubber storage sleeve 5 includes but is not limited to glass, ceramics, plastics and other fragile materials with certain corrosion resistance; and the sealant stored in the rubber storage sleeve 5 is a flowable liquid adhesive. As for the type of adhesive, it can be selected according to the material of the object to be connected.

[0023] It is worth mentioning that the broken pieces of the rubber storage sleeve 5 are mixed with the sealant and solidified to fill the entire inner cavity of the main sleeve 1, so that it can withstand greater shear force.

[0024] Furthermore, the outer diameters of the first sealing gasket 51 and the second sealing gasket 52 are not less than the inner diameter of the main sleeve 1, and the inner diameters of the first sealing gasket 51 and the second sealing gasket 52 are not greater than the outer diameter of the nail core 3. The outer diameters of the first sealing gasket 51 and the second sealing gasket 52 are not less than the inner diameter of the main sleeve 1, and the inner diameters of the first sealing gasket 51 and the second sealing gasket 52 are not greater than the outer diameter of the nail core 3.

[0025] Specifically, the sealing gasket is made of rubber, and the inner and outer sides thereof are interference-fitted with the connecting wall to increase the damping effect and achieve a better sealing effect.

[0026] Furthermore, a positioning clamp ring 11 is fixedly installed at the top of the main sleeve 1, a slot 12 is relatively opened inside the positioning clamp ring 11, and a clamp block 32 is relatively arranged outside the nail core 3. The clamp block 32 passes through the bottom of the slot 12 and engages with the top of the positioning clamp ring 11.

[0027] Furthermore, a neck-breaking groove 31 is formed on the outer periphery of the nail core 3 .

[0028] Furthermore, the outer diameter of the nail core head 4 is larger than the inner diameter of the main sleeve 1 .

[0029] Furthermore, the main sleeve 1 and the rivet cap 2 as well as the nail core 3 and the nail core head 4 are all integrated structures.

[0030] The working principle of the blind rivet with strong sealing performance in the specific embodiment is as follows: a rubber storage sleeve 5 is arranged in the main sleeve 1. The rubber storage sleeve 5 is made of fragile material and is sleeved on the outside of the nail core 3. Sealant is stored in it, and the two ends of the rubber storage sleeve 5 are sealed by the first sealing gasket 51 and the second sealing gasket 52. In addition, the nail core 3 and the main sleeve 1 are firmly fixed by the positioning clamp ring 11 and the clamp block 32. When riveting is performed, the nail core 3 drives the nail core head 4 at its bottom to expand and tighten the part passing through the hole of the connecting piece. At the same time, the rubber storage sleeve 5 is squeezed and crushed by the positioning clamp ring 11 and the nail core head 4, and the sealant inside it is squeezed out from the glue port 6 to fill the gap between the connecting piece and the rivet. The riveting is continued, the neck groove 31 reaches the maximum fatigue strength and breaks, and the excess nail core 3 is removed.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. Blind rivets with strong sealing properties, characterized by: The invention comprises a main body sleeve (1) and a nail core (3), wherein a rivet cap (2) is fixedly connected to the top of the main body sleeve (1), a nail core (3) is inserted into the bottom of the main body sleeve (1), and the top of the nail core (3) passes through the top of the rivet cap (2) and extends, and a nail core head (4) is fixedly connected to the bottom of the nail core (3), and a rubber storage sleeve (5) is arranged inside the main body sleeve (1), and the rubber storage sleeve (5) is made of a fragile material, and a first sealing gasket (51) and a second sealing gasket (52) are respectively arranged at the upper and lower ends of the rubber storage sleeve (5), and the rubber storage sleeve (5) is sleeved on the outside of the nail core (3), and a sealant is stored inside the rubber storage sleeve (5), and a rubber opening (6) is opened on the outer periphery of the main body sleeve (1).

2. The blind rivet with strong sealing performance according to claim 1, characterized in that: The outer diameters of the first sealing gasket (51) and the second sealing gasket (52) are not less than the inner diameter of the main sleeve (1), and the inner diameters of the first sealing gasket (51) and the second sealing gasket (52) are not greater than the outer diameter of the nail core (3).

3. The blind rivet with strong sealing performance according to claim 1, characterized in that: A positioning clamp ring (11) is fixedly mounted on the top end of the main sleeve (1), a slot (12) is provided on the inner side of the positioning clamp ring (11), and a clamp block (32) is provided on the outer side of the nail core (3), the clamp block (32) passes through the bottom of the slot (12) and is clamped with the top of the positioning clamp ring (11).

4. The blind rivet with strong sealing performance according to claim 1, characterized in that: A neck-breaking groove (31) is provided on the outer periphery of the nail core (3).

5. The blind rivet with strong sealing performance according to claim 1, characterized in that: The outer diameter of the nail core head (4) is greater than the inner diameter of the main sleeve (1).

6. The blind rivet with strong sealing performance according to claim 1, characterized in that: The main body sleeve (1) and the rivet cap (2) as well as the nail core (3) and the nail core head (4) are all integral structures.

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