Combined embedded rivet nut

Abstract

The utility model discloses a combined embedded rivet nut. The combined embedded rivet nut comprises an embedded nut and a riveting sleeve, one end of the embedded nut is provided with a limiting end, and the other end of the embedded nut is provided with an embedded end; first anti-rotation teeth are annularly arranged between the limiting end and the embedding end; a connecting thread is arranged on the inner side wall of the embedded nut; one end of the riveting sleeve is provided with an assembling end; second anti-rotation teeth are annularly arranged on the inner side wall of the assembling end; a fixed end is arranged at the other end of the riveting sleeve; the embedded nut is embedded into the riveting sleeve through the matching of the first anti-rotation teeth and the second anti-rotation teeth; after the embedded type nut and the riveting sleeve are assembled, the limiting end abuts against the assembling end, and the embedding end abuts against the middle of the inner side wall of the riveting sleeve. The combined type design of the embedded type nut and the riveting sleeve is adopted, the thread grade of the rivet nut is improved, and therefore the overall strength is improved, a riveting plate is not limited, and the riveting effect is good. And the device is suitable for riveting thicker metal plates, and is more suitable for riveting and thread machining of multi-layer metal plates and composite plates.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet nuts, in particular to a combined embedded rivet nut. Background Art

[0002] Pull-on rivet nuts are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration. They are developed to solve the shortcomings of metal sheet and thin tube welding nuts being easy to melt and tapping internal threads being easy to slip. They do not require tapping internal threads, welding nuts, and are fast and efficient, easy to use. Pull-on rivet nuts can be riveted once using a pneumatic or manual rivet gun, which is convenient and firm. They replace traditional welding nuts to make up for the shortcomings of metal sheet and thin tube welding being easy to melt and welding nuts being unsmooth. In addition, the thread grade of traditional riveted nuts and welded nuts is too low, which is not suitable for riveting thicker metal sheets and is not suitable for riveting and thread processing of multi-layer metal sheets and composite materials. Therefore, it is necessary to provide a combined embedded pull-on rivet nut to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to provide a combined embedded rivet nut, which adopts a combined design of an embedded nut and a rivet sleeve, thereby improving the thread grade of the rivet nut, thereby improving the overall strength, and is suitable for riveting thicker metal plates, and is more suitable for riveting and thread processing of multi-layer metal plates and composite material plates.

[0004] The utility model is realized by the following technical solutions:

[0005] A combined embedded rivet nut comprises an embedded nut and a rivet sleeve; a limited end is provided at one end of the embedded nut, and an embedded end is provided at the other end; a first anti-rotation tooth is arranged between the limited end and the embedded end; a connecting thread is arranged on the inner side wall of the embedded nut; an assembly end is provided at one end of the rivet sleeve; a second anti-rotation tooth is arranged on the inner side wall of the assembly end; a fixed end is provided at the other end of the rivet sleeve; the embedded nut is embedded in the rivet sleeve through the cooperation of the first anti-rotation tooth and the second anti-rotation tooth; after the embedded nut is assembled with the rivet sleeve, the limited end abuts against the assembly end, and the embedded end abuts against the middle part of the inner side wall of the rivet sleeve.

[0006] As a further improvement of the technical solution of the utility model, the embedded nut is made of low-carbon alloy steel, and the thread grade of the embedded nut is grade ten or higher than grade ten.

[0007] As a further improvement of the technical solution of the utility model, the first anti-rotation tooth and the second anti-rotation tooth are both triangular in shape.

[0008] As a further improvement of the technical solution of the present utility model, a chamfer is provided on the upper end surface of the limiting end.

[0009] To sum up, the present utility model has the following beneficial effects:

[0010] The present utility model adopts a combined design of an embedded nut and a riveting sleeve, which improves the thread grade of the blind rivet nut, thereby improving the overall strength. There is no restriction on the riveting plate, and it is suitable for riveting thick metal plates. It is more suitable for riveting and threading multi-layer metal plates and composite material plates. The present utility model is easy to use, has a good user experience effect, has a novel structure, low manufacturing cost, has good economic benefits, and can be widely promoted. Description of the Drawings

[0011] Figure 1 is a schematic diagram of the overall structure of a combined embedded blind rivet nut according to an embodiment of the present utility model;

[0012] Figure 2 is a three-dimensional structure diagram of the embedded nut according to an embodiment of the present utility model;

[0013] Figure 3 is a three-dimensional structure diagram of the riveting sleeve according to an embodiment of the present utility model;

[0014] Figure 4 is a schematic diagram of the assembly effect of the combined embedded blind rivet nut and the plate according to an embodiment of the present utility model.

[0015] In the drawings: 1 - embedded nut; 2 - riveting sleeve; 3 - plate; 4 - hexagon bolt; 11 - limiting end; 12 - embedding end; 13 - first anti-rotation tooth; 14 - connecting thread; 15 - chamfer; 21 - assembly end; 22 - second anti-rotation tooth; 23 - fixed end. Detailed Embodiment

[0016] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Here, the schematic embodiments and descriptions of the present utility model are used to explain the present utility model, but do not limit the present utility model.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In the present utility model, unless otherwise clearly defined and limited, the term "connection" shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0019] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature; in addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0020] The following will further elaborate on the present utility model in conjunction with the attached Figures 1-3 drawings.

[0021] As Figures 1 to 3 shown, a combined embedded rivet nut includes an embedded nut 1 and a riveting sleeve 2; one end of the embedded nut 1 is provided with a limiting end 11, and the other end is provided with an embedding end 12; a first anti-rotation tooth 13 is annularly arranged between the limiting end 11 and the embedding end 12; a connecting thread 14 is arranged on the inner side wall of the embedded nut 1; one end of the riveting sleeve 2 is provided with an assembly end 21; a second anti-rotation tooth 22 is annularly arranged on the inner side wall of the assembly end 21; the other end of the riveting sleeve 2 is provided with a fixed end 23; the embedded nut 1 is embedded in the riveting sleeve 2 through the cooperation of the first anti-rotation tooth 13 and the second anti-rotation tooth 22; after the embedded nut 1 and the riveting sleeve 2 are assembled, the limiting end 11 abuts against the assembly end 21, and the embedding end 12 abuts against the middle part of the inner side wall of the riveting sleeve 2. The present utility model adopts a combined design of the embedded nut 1 and the riveting sleeve 2, which improves the thread grade of the rivet nut, thereby improving the overall strength. There is no restriction on the riveting plate, and it is suitable for riveting of relatively thick metal plates, and is more suitable for riveting and thread processing of multi-layer metal plates and composite material plates.

[0022] Specifically, in the solution of this embodiment, the embedded nut 1 is made of low-carbon alloy steel, and the thread grade of the embedded nut 1 is ten or higher than ten. It should be noted that using an embedded nut 1 with a thread grade of ten or higher than ten can improve the defect of too low thread grades of traditional riveted nuts and welded nuts.

[0023] Specifically, in the solution of this embodiment, both the first anti-rotation tooth 13 and the second anti-rotation tooth 22 are triangular. It should be noted that the first anti-rotation tooth 13 and the second anti-rotation tooth 22 are misaligned and matched to play a role in locking and stabilizing, so that the embedded nut 1 is stably assembled in the riveting sleeve 2 to form a complete blind rivet nut. Since the materials of the embedded nut 1 and the riveting sleeve 2 are different, while the embedded nut 1 ensures the thread strength, the riveting sleeve 2 also has the deformation ability of an ordinary blind rivet nut, thereby improving the overall performance of the blind rivet nut.

[0024] Specifically, in the solution of this embodiment, a chamfer 15 is provided on the upper end surface of the limiting end 11.

[0025] Embodiment:

[0026] Refer to Figure 4 , pre-drill a riveting hole in the plate 3 to be riveted, put the combined embedded blind rivet nut of the present invention into the riveting hole, screw the gun head thread of the pneumatic blind riveting gun into the embedded nut 1, and then press the pneumatic button of the pneumatic blind riveting gun to drive the gun head to contract, thereby pulling the embedded nut 1 to rise towards the riveting sleeve 2; the riveting sleeve 2 is forced to bulge into an annular protrusion and tightly press on the plate 3 to be riveted, and then the embedded nut 1 is threadedly connected by the hexagon bolt 4, and the hexagon bolt 4 is tightened by a wrench, thereby completing the riveting of the plate 3.

[0027] In summary, the present invention has the following beneficial effects:

[0028] The present invention adopts a combined design of an embedded nut 1 and a riveting sleeve 2, which improves the thread grade of the blind rivet nut, thereby improving the overall strength. There is no restriction on the riveting plate, and it is suitable for riveting thicker metal plates, and is more suitable for riveting and thread processing of multi-layer metal plates and composite material plates. The present invention is convenient to use, has a good user experience effect, and has a novel structure and low manufacturing cost, with good economic benefits and can be widely promoted; the present invention improves the production efficiency and reduces the production cost when cooperating with a pneumatic blind riveting gun to process products.

[0029] The above has introduced in detail the technical solutions provided by the embodiments of the present utility model. Specific examples are used herein to elaborate on the principles and implementation manners of the embodiments of the present utility model. The description of the above embodiments is only applicable to helping understand the principles of the embodiments of the present utility model; at the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A combined embedded rivet nut, characterized in that: It comprises an embedded nut and a rivet sleeve; a limited end is provided at one end of the embedded nut, and an embedded end is provided at the other end; a first anti-rotation tooth is arranged between the limited end and the embedded end; a connecting thread is arranged on the inner side wall of the embedded nut; an assembly end is provided at one end of the rivet sleeve; a second anti-rotation tooth is arranged on the inner side wall of the assembly end; a fixed end is provided at the other end of the rivet sleeve; the embedded nut is embedded in the rivet sleeve through the cooperation of the first anti-rotation tooth and the second anti-rotation tooth; after the embedded nut is assembled with the rivet sleeve, the limited end abuts against the assembly end, and the embedded end abuts against the middle part of the inner side wall of the rivet sleeve.

2. The combined embedded rivet nut according to claim 1, characterized in that: The embedded nut is made of low-carbon alloy steel, and the thread grade of the embedded nut is grade ten or higher than grade ten.

3. The combined embedded rivet nut according to claim 1, characterized in that: The first anti-rotation tooth and the second anti-rotation tooth are both triangular in shape.

4. The combined embedded rivet nut according to claim 1, characterized in that: The upper end surface of the limiting end is provided with a chamfer.

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