Pressing rivet anti-falling nut for automobile

Abstract

The utility model relates to the technical field of nuts, in particular to an automobile pressure riveting anti-falling nut which comprises a round nut body and a first internal thread arranged in an inner hole of the round nut body, one end of the round nut body is concentrically connected with a pipe body, the first internal thread is arranged in an inner hole of the pipe body, an external thread is arranged on the outer circle face of the pipe body, and the first internal thread is connected with the pipe body. The round nut further comprises a flanging and riveting clamping pipe, an inner hole of the flanging and riveting clamping pipe is provided with a second internal thread matched with the external thread, and the end, close to the pipe body, of the round nut body is connected with an anti-skid boss assembly in an annular array mode. The pressing rivet anti-falling nut is reasonable in structure, the universality of the pressing rivet anti-falling nut is enhanced, and the using effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field especially is related to a car is with pressure riveting anti -skid nut. BACKGROUND

[0002] The pressure riveting nut is also called riveting nut, self-buckling nut, and is a kind of nut applied to sheet or sheet metal, and the appearance is circular, one end is provided with embossed teeth and guide groove, and the embossed teeth are pressed into the pre-placed hole of sheet metal, the hole diameter of pre-placed hole is slightly smaller than the embossed teeth of pressure riveting nut, and the embossed teeth of pressure riveting nut are extruded into the plate by pressure, so that the periphery of pre-placed hole is plastically deformed, and the deformation is extruded into guide groove, thereby locking effect is generated, and the nut is widely applied in automobile production, such as the connection of automobile body, engine support, transmission housing and other parts, can withstand vibration and various stresses in the process of automobile driving, and ensure the safety and reliability of vehicle.

[0003] The authorized announcement No.CN 220668092 U discloses an anti-skid nut, which comprises a nut body and a threaded hole penetrating the center of the nut body, one side of the nut body is connected with a riveting structure, the riveting structure comprises an annular protrusion, the center of the annular protrusion is on the same horizontal plane as the center of the threaded hole, a clearance is formed between the inner diameter of the annular protrusion and the outer diameter of the threaded hole, and the side of the nut body close to the annular protrusion is connected with an anti-skid structure. The utility model discloses a riveting structure and an anti-skid structure, the annular protrusion enters the mounting hole or protruding feature of the required sheet metal part, and then under the action of external die and force, the nut body and the sheet metal part are in the state of mutual embedding, and the gap is prevented from being generated, so that the nut body is fixed to the sheet metal part, the connection effect is improved, and the friction and torsional resistance of the sheet metal part and the nut body are increased by cooperating with the anti-skid protrusion, so that the nut body is prevented from rotating.

[0004] The prior art in the above has the following defects: since the axis length of the annular protrusion is constant, the anti-skid nut can only be riveted on sheet metal of specific thickness, and cannot be riveted on sheet metal of different thickness, so that the universality of the anti-skid nut is poor, and the use effect is reduced. UTILITY MODEL CONTENTS

[0005] The utility model mainly solves the technical problem to provide a kind of car is with pressure riveting anti-skid nut, and the universality of pressure riveting anti-skid nut is enhanced, and use effect is improved.

[0006] To solve the above technical problems, the utility model adopts one technical scheme, which provides an automobile press riveting anti -drop nut, which comprises: a circular nut body and a first internal thread arranged in the inner hole thereof, one end of the circular nut body is connected with a pipe body in a concentric manner, the inner hole of the pipe body is provided with the first internal thread, the outer circular surface of the pipe body is provided with an external thread, and the utility model further comprises a riveting clamping pipe, the inner hole of the riveting clamping pipe is provided with a second internal thread matched with the external thread, and the one end of the circular nut body close to the pipe body is connected with an anti -skid boss assembly in an annular array.

[0007] By adopting the above technical scheme, when in use, the installation hole is processed on the sheet metal part in advance, the riveting clamping pipe is arranged in the installation hole, according to the different thickness conditions of the sheet metal part, the riveting clamping pipe is screw-connected on the outer surface of the pipe body by rotating, so that the upper end of the riveting clamping pipe has a proper distance from the upper end of the circular nut body; next, under the pressure of the external pressing die, the circular wall of the riveting clamping pipe is tightly connected with the upper surface of the sheet metal after being turned outward, the anti -skid boss assembly on the circular nut body is embedded into the lower surface of the sheet metal part, so that the circular nut body is fixedly connected with the sheet metal part, since the second internal thread of the riveting clamping pipe is screw-connected with the external thread on the pipe body, that is, the riveting clamping pipe can axially move relative to the pipe body, therefore, the press riveting anti -drop nut can be fixed on sheet metals with different thicknesses, the use range is expanded, the universality of the press riveting anti -drop nut is enhanced, and the use effect is improved.

[0008] In a preferred example, the utility model can be further configured as: one end of the circular nut body is provided with a let -go annular groove, the let -go annular groove is located on the outer side of the pipe body, and the small diameter size of the inner cavity of the let -go annular groove is smaller than the outer diameter size of the pipe body, and the pipe body is suitable for being screwed into the inner cavity of the let -go annular groove.

[0009] By adopting the above technical scheme, since one end of the pipe body can enter the inner cavity of the let -go annular groove, the axial displacement size of the riveting clamping pipe relative to the pipe body is expanded.

[0010] In a preferred example, the utility model can be further configured as: a plurality of process grooves are arranged at intervals on the one end of the pipe body away from the circular nut body.

[0011] By adopting the above technical scheme, by arranging a plurality of process grooves on one end of the pipe body, the one end of the pipe body close to the process groove can be deformed and turned outward under the pressure of the external pressing die.

[0012] In a preferred example, the utility model can be further configured as: the anti -skid boss assembly comprises a plurality of annularly arranged anti -skid bosses, the anti -skid bosses are connected on one end of the circular nut body, and the cross section shape of the anti -skid boss is a sector, a circle or a triangle.

[0013] Through the above technical scheme, the flip riveting clamping pipe is deformed outwardly under the pressure of the external lower pressing die, and the sheet metal part is closely attached to the circular nut body, the anti-skid boss is embeddedly connected with the sheet metal part, and the connection effect is enhanced.

[0014] In a preferred example, the axial length of the flip riveting clamping pipe is 2.5-3 times the axial length of the pipe body.

[0015] Through the above technical scheme, the upper end of the flip riveting clamping pipe and the upper end of the circular nut body are left with sufficient adjustment distance, so as to be adapted to be fixed on sheet metal parts of different thicknesses, and the use range is expanded.

[0016] In a preferred example, the outer circular surface of the flip riveting clamping pipe is connected with a plurality of embedded blocks with triangular cross sections.

[0017] Through the above technical scheme, the flip riveting clamping pipe is deformed under the pressure of the external lower pressing die, so that the anti-skid boss is embeddedly connected with the sheet metal part, the flip riveting clamping pipe is prevented from rotating reversely and being separated from the pipe body, and the connection effect is improved.

[0018] In summary, the utility model has at least one of the following beneficial technical effects:

[0019] Since the second internal thread of the flip riveting clamping pipe and the external thread on the pipe body are threadedly connected, that is, the flip riveting clamping pipe can axially move relative to the pipe body, the press riveting anti-loose nut can be fixed on sheet metals of different thicknesses, the use range is expanded, the universality of the press riveting anti-loose nut is enhanced, and the use effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 It is a structure schematic view of a preferred embodiment of the utility model of a press riveting anti-loose nut for automobile.

[0022] Figure 2 It is Figure 1 A cross-sectional view of the circular nut body.

[0023] In the figure: 1, round nut body; 2, first internal thread; 3, pipe body; 4, external thread; 5, rivet clamping pipe; 6, second internal thread; 70, anti-skid boss assembly; 8, let go annular groove; 9, process groove; 11, embedded block; 71, anti-skid boss. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0025] It should be noted that these drawings are simplified schematic diagrams, and only illustrate the basic structure of the present application in a schematic manner, and therefore only show the relevant components of the present application.

[0026] Referring to Figures 1-2 The present application discloses a rivet clamping anti-loose nut for automobile, comprising: a round nut body 1 and a first internal thread 2 arranged in the inner hole thereof, one end of the round nut body 1 is connected with a pipe body 3 in a concentric manner, the inner hole of the pipe body 3 is provided with the first internal thread 2, the first internal thread 2 in the round nut body 1 and the first internal thread 2 in the pipe body 3 are integrally made, the outer circular surface of the pipe body 3 is provided with an external thread 4, and the rivet clamping pipe 5 is further included, the inner hole of the rivet clamping pipe 5 is provided with a second internal thread 6 matched with the external thread 4, and the round nut body 1 is annularly connected with an anti-skid boss assembly 70 at one end close to the pipe body 3.

[0027] One end of the round nut body 1 is provided with a let go annular groove 8, the let go annular groove 8 is located on the outer side of the pipe body 3, the small diameter size of the inner cavity of the let go annular groove 8 is smaller than the outer diameter size of the pipe body 3, and the pipe body 3 is suitable for being screwed into the inner cavity of the let go annular groove 8; since one end of the pipe body 3 can enter the inner cavity of the let go annular groove 8, the size of the axial displacement of the rivet clamping pipe 5 relative to the pipe body 3 is enlarged.

[0028] A plurality of process grooves 9 are arranged at one end of the pipe body 3 away from the round nut body 1; by arranging a plurality of process grooves 9 at one end of the pipe body 3, the end of the pipe body 3 close to the process groove 9 is facilitated to be deformed and turned outward under the pressure of an external lower pressing die.

[0029] The anti-skid boss assembly 70 includes a plurality of annularly arranged anti-skid bosses 71, the anti-skid bosses 71 are connected at one end of the round nut body 1, the cross-sectional shape of the anti-skid bosses 71 is fan-shaped, circular or triangular; the rivet clamping pipe 5 is deformed and turned outward under the pressure of an external lower pressing die, and the sheet metal part moves downward and closely adheres to the round nut body 1, the anti-skid bosses 71 are embedded and connected with the sheet metal part, and the connection effect is enhanced.

[0030] The axis length of the riveting clamping pipe 5 is 2.5-3 times of the axis length of the pipe body 3, so that enough adjusting distance is left between the upper end of the riveting clamping pipe 5 and the upper end of the circular nut body 1, thereby adapting to be fixed on sheet metal pieces of different thicknesses and expanding the use range.

[0031] The outer circular surface of the riveting clamping pipe 5 is connected with a plurality of triangular embedded blocks 11 in intervals; the riveting clamping pipe 5 is deformed under the pressure of the external lower pressing die, so that the anti-skid boss 71 is embeddedly connected with the sheet metal piece and prevents the riveting clamping pipe 5 from rotating reversely and being separated from the pipe body 3, thereby improving the connecting effect.

[0032] The implementation principle of the embodiment is that, in use, the installation hole is processed on the sheet metal piece in advance, the riveting clamping pipe 5 is arranged in the installation hole, the riveting clamping pipe 5 is screw-connected on the outer surface of the pipe body 3 according to the different thicknesses of the sheet metal pieces, so that the riveting clamping pipe 5 has appropriate distance with the upper end of the circular nut body 1; next, under the pressure of the external lower pressing die, the circular wall of the riveting clamping pipe 5 is tightly connected with the upper surface of the sheet metal after being turned outward, the anti-skid boss assembly 70 on the circular nut body 1 is embedded in the lower surface of the sheet metal piece, so that the circular nut body 1 is fixedly connected with the sheet metal piece, and since the second internal thread 6 of the riveting clamping pipe 5 is screw-connected with the external thread 4 on the pipe body 3, that is, the riveting clamping pipe 5 can axially move relative to the pipe body 3, so that the riveting anti-loose nut can be fixed on sheet metal pieces of different thicknesses, the use range is expanded, the universality of the riveting anti-loose nut is enhanced, and the use effect is improved.

[0033] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. A press-in captive nut for an automobile, comprising: The circular nut body (1) and the first internal thread (2) arranged in the inner hole thereof are characterized in that one end of the circular nut body (1) is connected with a pipe body (3) in a concentric manner, the inner hole of the pipe body (3) is provided with the first internal thread (2), the outer circular surface of the pipe body (3) is provided with an external thread (4), further comprising a riveting clamping pipe (5), the inner hole of the riveting clamping pipe (5) is provided with a second internal thread (6) matched with the external thread (4), and the circular nut body (1) is arranged with an anti-skid boss assembly (70) in an annular array at one end close to the pipe body (3).

2. The press-riveted anti-backout nut for an automobile according to claim 1, characterized by One end of the circular nut body (1) is provided with a let-in annular groove (8), the let-in annular groove (8) is located on the outer side of the pipe body (3), the small-diameter size of the inner cavity of the let-in annular groove (8) is smaller than the outer diameter size of the pipe body (3), and the pipe body (3) is adapted to be screwed into the inner cavity of the let-in annular groove (8).

3. The press-riveted anti-backout nut for an automobile according to claim 1, characterized by The pipe body (3) is provided with a plurality of process grooves (9) at one end away from the circular nut body (1).

4. The press-riveted anti-backout nut for an automobile according to claim 1, characterized by The anti-skid boss assembly (70) comprises a plurality of annularly arranged anti-skid bosses (71), the anti-skid bosses (71) are connected at one end of the circular nut body (1), and the cross-sectional shape of the anti-skid bosses (71) is fan-shaped, circular or triangular.

5. The press-riveted anti-backout nut for an automobile according to claim 1, characterized by The axis length of the riveting clamping pipe (5) is 2.5-3 times the axis length of the pipe body (3).

6. The press-riveted anti-backout nut for an automobile according to claim 1, characterized by The outer circular surface of the riveting clamping pipe (5) is connected with a plurality of triangularly-shaped embedded blocks (11) in an interval manner.

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