阅读说明：本技术 一种铆螺母 (Rivet nut ) 是由 廖文峰 陶耀平 黄超 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种铆螺母,包括限位环、内圆管、第一限位槽、第一铆接管、第一限位条、第二限位条、圆管、第二铆接管、第三限位条、第四限位条、喇叭管、内螺纹管、第二限位槽,所述限位环下端面设有同轴的内圆管,内圆管下端面设有若干个径向设置的第一限位槽,第一限位槽从内圆管外壁径向向内延伸,内圆管下端面设有同轴的第一铆接管,第一铆接管的外管壁设有若干个轴向设置的第一限位条,第一限位条与第一限位槽相适应,第一限位条的最上端插入第一限位槽内,第一铆接管的内管壁中部设有若干个轴向设置的第二限位条。本发明通过将圆管设在第一铆接管、第二铆接管之间,能够为第一铆接管、第二铆接管的组合体向外弯折时事先提供了折线。(The invention discloses a rivet nut which comprises a limiting ring, an inner circular tube, a first limiting groove, a first riveting tube, a first limiting strip, a second limiting strip, a circular tube, a second riveting tube, a third limiting strip, a fourth limiting strip, a horn tube, an inner threaded tube and a second limiting groove. According to the invention, the round pipe is arranged between the first riveting pipe and the second riveting pipe, so that a folding line can be provided in advance when the combination of the first riveting pipe and the second riveting pipe is bent outwards.)

1. The utility model provides a rivet nut which characterized in that: comprises a limiting ring (1), an inner circular tube (2), a first limiting groove (21), a first riveting tube (3), a first limiting strip (31), a second limiting strip (32), a circular tube (4), a second riveting tube (5), a third limiting strip (51), a fourth limiting strip (52), a horn tube (6), an inner threaded tube (7) and a second limiting groove (71), wherein the lower end surface of the limiting ring (1) is provided with the coaxial inner circular tube (2), the lower end surface of the inner circular tube (2) is provided with a plurality of first limiting grooves (21) which are radially arranged, the first limiting grooves (21) radially extend inwards from the outer wall of the inner circular tube (2), the lower end surface of the inner circular tube (2) is provided with the coaxial first riveting tube (3), the outer wall of the first riveting tube (3) is provided with a plurality of first limiting strips (31) which are axially arranged, and the first limiting strips (31) are adapted to the first limiting groove (21), the uppermost end of the first limiting strip (31) is inserted into the first limiting groove (21), the middle part of the inner wall of the first riveting pipe (3) is provided with a plurality of second limiting strips (32) which are axially arranged, the lower end surface of the first riveting pipe (3) is provided with a coaxial round pipe (4), the axial section of the pipe wall of the round pipe (4) is arc-shaped, the arc-shaped is radially and outwards protruded, the lower end surface of the round pipe (4) is provided with a coaxial second riveting pipe (5), the outer pipe wall of the second riveting pipe (5) is provided with a plurality of coaxial third limiting strips (51), the middle part of the inner wall of the second riveting pipe (5) is provided with a plurality of coaxial fourth limiting strips (52), the lower end surface of the second riveting pipe (5) is provided with a coaxial internal threaded pipe (7), the upper end surface of the internal threaded pipe (7) is provided with a plurality of second limiting grooves (71) which are radially arranged, and the second limiting grooves (71) are adapted to the third limiting strips (51), the lowest end of the third limiting strip (51) is inserted into the second limiting groove (71), the upper end face of the internal thread pipe (7) is provided with a coaxial horn pipe (6), the annular surface with the largest diameter of the horn pipe (6) is connected with the upper end face of the internal thread pipe (7), and the horn pipe (6) is arranged on the inner side of the second riveting pipe (5).

2. The rivet nut of claim 1, wherein: the numerical values of the inner diameter of the limiting ring (1), the inner diameter of the inner circular tube (2) and the major diameter of the inner threaded tube (7) are the same.

3. The rivet nut of claim 1, wherein: a plurality of first spacing groove (21), a plurality of second spacing groove (71), a plurality of first spacing strip (31), a plurality of third spacing strip (51) equal circumference distributes, first spacing groove (21), second spacing groove (71) symmetry, first spacing groove (21), the vertical cross-section of second spacing groove (71) is isosceles trapezoid and trapezoidal upper base is the tank bottom, first spacing strip (31), third spacing strip (51) symmetry, first spacing strip (31), the horizontal cross-section of third spacing strip (51) is isosceles trapezoid and isosceles trapezoid's lower bottom is for connecting the face, first spacing strip (31) upwards extend until stretching into first spacing groove (21) inside and the radial length of first spacing strip (31) is the same with the degree of depth of first spacing groove (21) from the outer pipe wall middle part axial of first riveting pipe (3), third spacing strip (51) downwards extend until stretching into second spacing groove (71) inside and the second spacing groove (71) from the outer pipe (5) wall middle part axial The radial length of the three limiting strips (51) is the same as the depth of the second limiting groove (71).

4. The rivet nut of claim 1, wherein: the first riveting pipe (3) and the second riveting pipe (5) are round pipes, the first riveting pipe (3) and the second riveting pipe (5) are the same in size and are symmetrical to each other, the inner diameters of the first riveting pipe (3) and the second riveting pipe (5) are larger than the inner diameter of the limiting ring (1), the first riveting pipe (3) is inscribed in the plurality of first limiting grooves (21), and the second riveting pipe (5) is inscribed in the plurality of second limiting grooves (71).

5. The rivet nut of claim 1, wherein: the horizontal sections of the second limiting strips (32) and the fourth limiting strips (52) are both isosceles trapezoids, the lower bottoms of the isosceles trapezoids are connecting surfaces, a plurality of the second limiting strips (32) and a plurality of the fourth limiting strips (52) are distributed in a circumferential manner, the sizes of the second limiting strips (32) and the fourth limiting strips (52) are the same, the distances between two adjacent second limiting strips (32) and two adjacent fourth limiting strips (52) are slightly larger than the second limiting strips (32), the length of going to the bottom of the isosceles trapezoid shape horizontal cross section that fourth spacing (52) correspond, be equipped with one fourth spacing (52) in the middle of two adjacent second spacing (32), the axial length of second spacing (32), fourth spacing (52) all is less than first riveting pipe (3), the axial length of second riveting pipe (5), the radial length sum of second spacing (32), fourth spacing (52) slightly is less than the axial length after the pipe wall axial of pipe (4) is straightened.

6. The rivet nut of claim 1, wherein: the inner diameter of the annular surface of the upper end face of the flared tube (6) is the same as the major diameter of the internal threaded tube (7), and the axial height of the flared tube (6) is slightly larger than the sum of the radial lengths of the first limiting strip (31) and the third limiting strip (51).

7. The rivet nut of claim 1, wherein: the inner circular tube (2) is a hexagonal tube, and the diameter of an inscribed circle of the hexagonal tubular outer tube wall of the inner circular tube (2) is larger than or equal to the outer diameter of the inner threaded tube (7).

8. The rivet nut of claim 1, wherein: the axial distance between the upper end surface of the inner circular tube (2) and the uppermost end of the first limiting groove (21) is slightly smaller than the axial length of the rivet nut mounting hole.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of fasteners, in particular to the technical field of rivet nuts.

[ background of the invention ]

Rivet nuts, also known as pulling rivet nuts and pulling caps, are used in the fastening field of manufacturing industries of various metal plates, pipes and the like, and are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decoration and the like. The novel riveting tool is developed for overcoming the defects that a welding nut of a metal sheet and a thin pipe is easy to melt, a base material is easy to weld and deform, an internal thread is easy to slip, and the like. The conventional riveting nut has low strength at the compressed riveting part, the compressed riveting part is easy to generate torsional deformation, so that the riveting nut is easy to damage, and a screw rod fixed in the current riveting nut is easy to loosen

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a rivet nut which can ensure that the strength of a compressed riveting part is high, torsion deformation is not easy to generate, and a screw rod fixed in the rivet nut is not easy to loosen.

In order to achieve the above purpose, the invention provides a rivet nut, which comprises a limiting ring, an inner circular tube, a first limiting groove, a first riveting tube, a first limiting strip, a second limiting strip, a circular tube, a second riveting tube, a third limiting strip, a fourth limiting strip, a horn tube, an inner threaded tube and a second limiting groove, wherein the lower end surface of the limiting ring is provided with the coaxial inner circular tube, the lower end surface of the inner circular tube is provided with a plurality of first limiting grooves which are radially arranged, the first limiting grooves radially extend inwards from the outer wall of the inner circular tube, the lower end surface of the inner circular tube is provided with the coaxial first riveting tube, the outer wall of the first riveting tube is provided with a plurality of first limiting strips which are axially arranged, the first limiting strips are matched with the first limiting grooves, the uppermost ends of the first limiting strips are inserted into the first limiting grooves, the middle part of the inner wall of the first riveting tube is provided with a plurality of second limiting strips which are axially arranged, and the lower end surface of the first riveting tube is provided with the coaxial circular tube, the pipe wall axial cross-section of pipe is the arc and this arc radially outwards protrudes, the lower terminal surface of pipe is equipped with coaxial second and rivets the takeover, the outer pipe wall that the second was riveted the takeover is equipped with the coaxial third spacing of a plurality of, the second is riveted the inner tube wall middle part of takeover and is equipped with the coaxial fourth spacing of a plurality of, the lower terminal surface that the second was riveted the takeover is equipped with coaxial internal thread pipe, the up end of internal thread pipe is equipped with the radial second spacing groove that sets up of a plurality of, the second spacing groove suits with the third spacing, the third spacing inserts the second spacing inslot at the lower extreme, the up end of internal thread pipe is equipped with coaxial horn tube, the biggest anchor ring of horn tube diameter links to each other with the up end of internal thread pipe, the horn tube is established and is riveted the takeover inboard at the second.

Preferably, the inner diameter of the limiting ring, the inner diameter of the inner circular tube and the large diameter of the internal threaded tube are the same in value.

Preferably, the first limiting grooves are formed in the plurality of first limiting grooves, the second limiting grooves are formed in the plurality of second limiting grooves, the first limiting strips are formed in the plurality of third limiting strips, the third limiting strips are distributed on the circumference, the first limiting grooves and the second limiting grooves are symmetrical, the vertical cross sections of the first limiting grooves and the second limiting grooves are isosceles trapezoids, the upper bottoms of the isosceles trapezoids are the bottoms of the first limiting strips and the third limiting strips, the first limiting strips and the third limiting strips are symmetrical, the horizontal cross sections of the first limiting strips and the third limiting strips are isosceles trapezoids, the lower bottoms of the isosceles trapezoids are connecting faces, the first limiting strips axially extend upwards from the middle of the outer pipe wall of the first riveting pipe until the radial length of the first limiting strips is equal to the depth of the first limiting grooves, and the third limiting strips axially extend downwards from the middle of the outer pipe of the second riveting pipe until the radial length of the second limiting strips is equal to the depth of the second limiting grooves.

Preferably, the first riveting pipe and the second riveting pipe are both circular pipes, the first riveting pipe and the second riveting pipe are the same in size and are symmetrical to each other, the inner diameters of the first riveting pipe and the second riveting pipe are larger than the inner diameter of the limiting ring, the first riveting pipes are connected in the plurality of first limiting grooves, and the second riveting pipes are connected in the plurality of second limiting grooves.

Preferably, the horizontal cross sections of the second limiting strips and the fourth limiting strips are isosceles trapezoids, the lower bottoms of the isosceles trapezoids are connecting surfaces, the second limiting strips and the fourth limiting strips are distributed on the circumference, the sizes of the second limiting strips and the fourth limiting strips are the same, the distance between every two adjacent second limiting strips and every two adjacent fourth limiting strips is slightly larger than the length of the lower bottom of the isosceles trapezoid-shaped horizontal cross section corresponding to the second limiting strips and the fourth limiting strips, the fourth limiting strip is arranged between every two adjacent second limiting strips, the axial lengths of the second limiting strips and the fourth limiting strips are smaller than the axial lengths of the first riveting tube and the second riveting tube, and the sum of the radial lengths of the second limiting strips and the fourth limiting strips is slightly smaller than the axial length of the tube wall of the circular tube after the tube wall is axially stretched.

Preferably, the inner diameter of the annular surface of the upper end surface of the flared tube is the same as the major diameter of the internal threaded tube, and the axial height of the flared tube is slightly greater than the sum of the radial lengths of the first limiting strip and the third limiting strip.

Preferably, the inner circular tube is a hexagonal tube, and the diameter of an inscribed circle of the hexagonal tubular outer tube wall of the inner circular tube is larger than or equal to the outer diameter of the internal threaded tube.

Preferably, the axial distance between the upper end surface of the inner circular tube and the uppermost end of the first limiting groove is slightly smaller than the axial length of the rivet nut mounting hole.

The invention has the beneficial effects that: according to the invention, the circular tube is arranged between the first riveting pipe and the second riveting pipe, so that a folding line can be provided in advance when the combination of the first riveting pipe and the second riveting pipe is bent outwards, the lower end of the first riveting pipe and the upper end of the second riveting pipe can be bent outwards in a set direction, the bending direction of the combination of the first riveting pipe and the second riveting pipe is controllable, and the first limiting strip, the third limiting strip, the second limiting strip and the fourth limiting strip are convenient to position; when the first riveting pipe and the second riveting pipe are overlapped, the first limiting strip and the third limiting strip are mutually clamped, so that the first riveting pipe and the second riveting pipe are not easy to relatively rotate, the strength of the first riveting pipe and the strength of the second riveting pipe are enhanced, and the first riveting pipe and the second riveting pipe are not easy to be twisted and deformed; after the first limiting strip is clamped into the corresponding first limiting groove, the first riveting pipe and the inner circular pipe are not easy to rotate relatively, and the first riveting pipe is not easy to be twisted and deformed; after the third limiting strip is clamped into the corresponding second limiting groove, the second riveting pipe and the internal threaded pipe are not easy to rotate relatively, so that the second riveting pipe is not easy to be twisted and deformed; the axial distance between the upper end surface of the inner circular tube and the uppermost end of the first limiting groove is slightly smaller than the axial length of the rivet nut mounting hole, so that the first limiting strip can be effectively pressed into the first limiting groove, and the third limiting strip can be effectively pressed into the second limiting groove; the inner circular tube is a hexagonal tube and prevents the rivet nut from rotating in the mounting hole; after the flared tube is compressed axially, the inner diameter of the annular surface of the upper end face of the flared tube is smaller than the large diameter of the inner threaded tube, and the annular opening of the upper end face of the flared tube can clamp a screw rod in the rivet nut, so that the screw rod fixed in the rivet nut is not easy to loosen.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a front view of a rivet nut of the present invention.

[ detailed description ] embodiments

Referring to fig. 1, the rivet nut of the present invention comprises a limiting ring 1, an inner circular tube 2, a first limiting groove 21, a first riveting tube 3, a first limiting strip 31, a second limiting strip 32, a circular tube 4, a second riveting tube 5, a third limiting strip 51, a fourth limiting strip 52, a trumpet tube 6, an internal threaded tube 7, and a second limiting groove 71, wherein the lower end surface of the limiting ring 1 is provided with the coaxial inner circular tube 2, the lower end surface of the inner circular tube 2 is provided with a plurality of first limiting grooves 21 arranged radially, the first limiting groove 21 extends radially inward from the outer wall of the inner circular tube 2, the lower end surface of the inner circular tube 2 is provided with the coaxial first riveting tube 3, the outer wall of the first riveting tube 3 is provided with a plurality of first limiting strips 31 arranged axially, the first limiting strips 31 are adapted to the first limiting grooves 21, the uppermost end of the first limiting strips 31 is inserted into the first limiting grooves 21, the middle portion of the inner wall of the first riveting tube 3 is provided with a plurality of second limiting strips 32 arranged axially, the lower end face of the first riveting pipe 3 is provided with a coaxial circular pipe 4, the axial section of the pipe wall of the circular pipe 4 is arc-shaped, the arc-shaped is radially outwards protruded, the lower end face of the circular pipe 4 is provided with a coaxial second riveting pipe 5, the outer pipe wall of the second riveting pipe 5 is provided with a plurality of coaxial third limiting strips 51, the middle part of the inner pipe wall of the second riveting pipe 5 is provided with a plurality of coaxial fourth limiting strips 52, the lower end face of the second riveting pipe 5 is provided with a coaxial internal threaded pipe 7, the upper end face of the internal threaded pipe 7 is provided with a plurality of radially arranged second limiting grooves 71, the second limiting grooves 71 are matched with the third limiting strips 51, the lowest end of the third limiting strips 51 is inserted into the second limiting grooves 71, the upper end face of the internal threaded pipe 7 is provided with a coaxial horn pipe 6, the circular ring face with the largest diameter of the horn pipe 6 is connected with the upper end face of the internal threaded pipe 7, the horn pipe 6 is arranged at the inner side of the second riveting pipe 5, the numerical values of the inner diameter of the limiting ring 1, the inner diameter of the inner circular tube 2 and the large diameter of the inner threaded tube 7 are the same, the first limiting grooves 21 of the plurality of first limiting grooves, the second limiting grooves 71 of the plurality of second limiting grooves, the first limiting strips 31 of the plurality of first limiting strips, the third limiting strips 51 are distributed in a uniform circumference mode, the first limiting grooves 21 and the second limiting grooves 71 are symmetrical, the vertical cross sections of the first limiting grooves 21 and the second limiting grooves 71 are isosceles trapezoid and the upper bottom of the trapezoid is a groove bottom, the first limiting strips 31 and the third limiting strips 51 are symmetrical, the horizontal cross sections of the first limiting strips 31 and the third limiting strips 51 are isosceles trapezoid and the lower bottom of the isosceles trapezoid is a connecting surface, the first limiting strips 31 axially extend upwards from the middle part of the outer wall of the first riveting tube 3 until the first limiting grooves 21 are inserted, the radial length of the first limiting strips 31 is the same as the depth of the first limiting grooves 21, and the third limiting strips 51 axially extend downwards from the middle part of the outer wall of the second riveting tube 5 until the second limiting grooves 71 and the radial length of the third limiting strips 51 are inserted into the second limiting grooves 71 The depth of the first riveting pipe 3 and the second riveting pipe 5 is the same as that of the second limiting groove 71, the first riveting pipe 3 and the second riveting pipe 5 are both circular pipes, the first riveting pipe 3 and the second riveting pipe 5 have the same size and are mutually symmetrical, the inner diameters of the first riveting pipe 3 and the second riveting pipe 5 are both larger than that of the limiting ring 1, the first riveting pipe 3 is connected in the plurality of first limiting grooves 21, the second riveting pipe 5 is connected in the plurality of second limiting grooves 71, the horizontal cross sections of the second limiting strips 32 and the fourth limiting strips 52 are both isosceles trapezoids, the lower bottoms of the isosceles trapezoids are connecting surfaces, the second limiting strips 32 and the fourth limiting strips 52 are all circumferentially distributed, the sizes of the second limiting strips 32 and the fourth limiting strips 52 are the same, and the distance between two adjacent second limiting strips 32 and two adjacent fourth limiting strips 52 is slightly larger than the length of the lower bottoms of the isosceles trapezoid-shaped horizontal cross sections corresponding to the second limiting strips 32 and the fourth limiting strips 52, a fourth limiting strip 52 is arranged between two adjacent second limiting strips 32, the axial lengths of the second limiting strips 32 and the fourth limiting strips 52 are both smaller than the axial lengths of the first riveting pipe 3 and the second riveting pipe 5, the sum of the radial lengths of the second limiting strips 32 and the fourth limiting strips 52 is slightly smaller than the axial length of the pipe wall of the circular pipe 4 after being axially straightened, the inner diameter of the annular surface of the upper end face of the horn pipe 6 is the same as the major diameter of the internal threaded pipe 7, the axial height of the horn pipe 6 is slightly larger than the sum of the radial lengths of the first limiting strips 31 and the third limiting strips 51, the internal circular pipe 2 is a hexagonal pipe, the diameter of an internal circle of the hexagonal tubular outer pipe wall of the internal circular pipe 2 is larger than or equal to the outer diameter of the internal threaded pipe 7, and the axial distance between the upper end face of the internal circular pipe 2 and the uppermost end of the first limiting groove 21 is slightly smaller than the axial length of the riveting nut mounting hole.

The working process of the invention is as follows:

in the working process of the riveting nut, the round pipe 4 is arranged between the first riveting pipe 3 and the second riveting pipe 5, so that a folding line can be provided for the outward bending of the combination of the first riveting pipe 3 and the second riveting pipe 5 in advance, the lower end of the first riveting pipe 3 and the upper end of the second riveting pipe 5 can be bent outward in a set direction, the bending direction of the combination of the first riveting pipe 3 and the second riveting pipe 5 can be controlled, and the first limiting strip 31, the third limiting strip 51, the second limiting strip 32 and the fourth limiting strip 52 can be conveniently positioned; when the first riveting pipe 3 and the second riveting pipe 5 are overlapped, the first limiting strip 31 and the third limiting strip 51 are mutually clamped, so that the first riveting pipe 3 and the second riveting pipe 5 are not easy to relatively rotate, the strength of the first riveting pipe 3 and the strength of the second riveting pipe 5 are enhanced, and the first riveting pipe 3 and the second riveting pipe 5 are not easy to be twisted and deformed; after the first limiting strips 31 are clamped into the corresponding first limiting grooves 21, the first riveting tube 3 and the inner circular tube 2 are not easy to relatively rotate, so that the first riveting tube 3 is not easy to be twisted and deformed; after the third limiting strips 51 are clamped into the corresponding second limiting grooves 71, the second riveting tube 5 and the internal threaded tube 7 are not easy to relatively rotate, so that the second riveting tube 5 is not easy to be twisted and deformed; the axial distance between the upper end surface of the inner circular tube 2 and the uppermost end of the first limiting groove 21 is slightly smaller than the axial length of the rivet nut mounting hole, so that the first limiting strip 31 can be effectively pressed into the first limiting groove 21, and the third limiting strip 51 can be effectively pressed into the second limiting groove 71; the inner circular tube 2 is a hexagonal tube and prevents the rivet nut from rotating in the mounting hole; after the flared tube 6 is compressed axially, the inner diameter of the annular surface of the upper end face of the flared tube 6 is smaller than the large diameter of the internal threaded tube 7, and the annular opening of the upper end face of the flared tube 6 can clamp a screw rod in the rivet nut, so that the screw rod fixed in the rivet nut is not easy to loosen.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.