CN217539253U - Self-piercing fastener - Google Patents

Abstract

The utility model relates to an engineering element technical field, concretely relates to from perforation fastener, which comprises a base plate, a plurality of perforating mechanism, coupling mechanism and fastener, the fastener includes the fastener body, two pivots, two bull sticks and reset assembly, press perforating mechanism into the inboard when needs, stir two bull sticks, two bull sticks rotate on the fastener body through two pivots respectively, make two bull sticks keep away from each other and tensile reset assembly, until reset assembly is stretched to the maximum value, perforating mechanism on the base plate is pressed to two bull sticks of accessible this moment, pierce into the inboard until perforating mechanism, the cancellation is to the bull stick application of force, make two bull sticks of reset assembly pulling reset, make fastener body surface form columnar structure, it is too smooth to have solved the fastener surface, there is the problem of application of force difficulty.

Description

Self-piercing fastener

Technical Field

The utility model relates to an engineering component technical field especially relates to a self-piercing fastener.

Background

The self-piercing fastener is attached to the plate by piercing the top of the plate.

Currently, the prior art (CN 110892162B) discloses a self-piercing fastener having a planar base with a top, a bottom and a peripheral edge. A plurality of prongs are secured to the peripheral edge and extend downwardly past the bottom of the base plate. Each prong has a central axis and an arrowhead shaped barb secured to the distal end. Each barb has an opposite leading edge extending from the tip and an opposite trailing edge oriented at opposite acute angles relative to the central axis of the prong. Each barb is adapted to be fixedly embedded within the interior of the panel to which the fastener is secured.

By adopting the mode, the base plate needs to be pressed by applying force to the fastener, so that the barb on the base plate pierces into the plate, but the surface of the fastener is too smooth, the problem of difficulty in applying force exists, and the effect of the barb piercing into the plate can be influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from piercing through fastener aims at solving the fastener surface and too smooth, has the problem of application of force difficulty.

In order to achieve the above object, the present invention provides a self-piercing fastener, which includes a substrate, a plurality of piercing mechanisms, a connecting mechanism and a fastener, wherein the plurality of piercing mechanisms are respectively disposed on the outer sidewall of the substrate, the connecting mechanism is disposed on the inner sidewall of the substrate, and the fastener is disposed on the top of the connecting mechanism;

the fastener includes fastener body, two pivots, two bull sticks and reset assembly, the fastener body with coupling mechanism threaded connection, and be located the coupling mechanism top, two the pivot respectively with fastener body fixed connection all is located fastener body inside wall, two the bull stick respectively with two the pivot is rotated and is connected, all is located the pivot lateral wall, reset assembly sets up in two between the bull stick.

The reset assembly comprises two sliders, two balls, a guide piece and a reset spring, wherein the two sliders are respectively connected with the two rotating rods in a sliding mode and are located on the inner side walls of the rotating rods, the two balls are respectively connected with the two sliders in a rotating mode and are located on one side of the rotating rods, the guide piece is fixedly connected with the two balls and located between the two balls, and the reset spring is fixedly connected with the guide piece and located in the guide piece.

Wherein, the guide part includes solid fixed cylinder, guide cylinder and stopper, gu the fixed cylinder with ball fixed connection to be located and keep away from one side of slider, the guide cylinder with gu fixed cylinder sliding connection, and with another ball fixed connection, and run through gu the fixed cylinder, the stopper with guide cylinder fixed connection, and be located gu in the fixed cylinder, one side of reset spring with gu fixed cylinder fixed connection, reset spring's opposite side with guide cylinder fixed connection, and be located gu the fixed cylinder with between the guide cylinder.

The connecting mechanism comprises a threaded rod and a limiting plate, the threaded rod is in threaded connection with the fastener body and is located on the inner side wall of the fastener body, and the limiting plate is fixedly connected with the threaded rod and is located at the bottom of the substrate.

The punching mechanism comprises a barb and a plug, the barb is fixedly connected with the substrate and is positioned on the outer side wall of the substrate, and the plug is fixedly connected with the barb and is positioned on one side far away from the substrate.

The utility model discloses a from perforation fastener will when needing perforating mechanism presses into the inboard, stir two the bull stick, two the bull stick is respectively through two the pivot is in rotate on the fastener body, make two the bull stick is kept away from each other and is stretched reset assembly, until reset assembly is stretched to the maximum value, accessible two this moment the bull stick is pressed on the base plate perforating mechanism, until perforating mechanism pierces into the inboard, and the cancellation is right the bull stick application of force makes reset assembly stimulates two the bull stick resets, makes fastener body surface forms the columnar structure, has solved the fastener surface and too smooth, has the problem of application of force difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a self-piercing fastener according to the present invention.

Fig. 2 is a top view of a self-piercing fastener provided by the present invention.

Fig. 3 isbase:Sub>A cross-sectional view taken along planebase:Sub>A-base:Sub>A of fig. 2.

Fig. 4 is an enlarged view of detail B of fig. 3.

The device comprises a base plate 1, a punching mechanism 2, a connecting mechanism 3, a fastening piece 4, a fastening piece body 5, a rotating shaft 6, a rotating rod 7, a reset assembly 8, a slide block 9, a ball 10, a guide piece 11, a reset spring 12, a fixed cylinder 13, a guide cylinder 14, a limiting block 15, a threaded rod 16, a limiting plate 17, a barb 18 and a plug 19.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 4, the present invention provides a self-piercing fastener, including a substrate 1, a plurality of piercing mechanisms 2, a connecting mechanism 3 and a fastener 4, wherein the plurality of piercing mechanisms 2 are respectively disposed on an outer sidewall of the substrate 1, the connecting mechanism 3 is disposed on an inner sidewall of the substrate 1, and the fastener 4 is disposed on a top of the connecting mechanism 3;

fastener 4 includes fastener body 5, two pivots 6, two bull sticks 7 and reset assembly 8, fastener body 5 with 3 threaded connection of coupling mechanism, and be located 3 tops of coupling mechanism, two pivot 6 respectively with 5 fixed connection of fastener body all are located 5 inside walls of fastener body, two bull sticks 7 respectively with two pivot 6 rotates to be connected, all is located 6 lateral walls of pivot, reset assembly 8 sets up in two between the bull stick 7.

In this embodiment, the base plate 1 provides a mounting condition for the piercing mechanism 2, the fastening member 4 is fixed on the base plate 1 through the connecting mechanism 3, when the piercing mechanism 2 needs to be pressed into a plate, the two rotating rods 7 are shifted, the two rotating rods 7 respectively rotate on the fastening member body 5 through the two rotating shafts 6, so that the two rotating rods 7 are away from each other and stretch the reset assembly 8 until the reset assembly 8 is stretched to a maximum value, the piercing mechanism 2 on the base plate 1 can be pressed through the two rotating rods 7 until the piercing mechanism 2 pierces into the plate, the force applied to the rotating rods 7 is cancelled, the reset assembly 8 pulls the two rotating rods 7 to reset, the outer surface of the fastening member body 5 forms a columnar structure, the outer side surfaces of the fastening member body 5 and the two rotating rods 7 are both provided with external threads for connecting other workpieces or equipment, and the contact area with a hand is increased through the rotating rods 7, so that the problem that the surface of the fastening member 4 is too smooth and the force application is difficult is solved.

Further, the reset assembly 8 includes two sliders 9, two balls 10, a guide 11 and a reset spring 12, the two sliders 9 are respectively connected with the two rotating rods 7 in a sliding manner, and are both located on the inner side wall of the rotating rods 7, the two balls 10 are respectively connected with the two sliders 9 in a rotating manner, and are both located on one side far away from the rotating rods 7, the guide 11 is fixedly connected with the two balls 10 and is located between the two balls 10, and the reset spring 12 is fixedly connected with the guide 11 and is located in the guide 11; the guide 11 includes a fixed cylinder 13, a guide cylinder 14 and a limiting block 15, the fixed cylinder 13 and the ball 10 are fixedly connected and located far away from one side of the sliding block 9, the guide cylinder 14 and the fixed cylinder 13 are connected in a sliding manner and are connected with one another in a fixed manner, the ball 10 is fixedly connected and penetrates through the fixed cylinder 13, the limiting block 15 and the guide cylinder 14 is fixedly connected and located in the fixed cylinder 13, one side of the reset spring 12 and the fixed cylinder 13 are fixedly connected, and the other side of the reset spring 12 and the guide cylinder 14 are fixedly connected and located between the fixed cylinder 13 and the guide cylinder 14.

In this embodiment, the rotating rods 7 are away from each other, the guide member 11 is pulled by the balls 10 on the sliding block 9, so that the guide cylinders 14 of the guide member 11 slide out of the fixed cylinders 13, and the return spring 12 is pulled, the rotating rods 7 have sliding grooves, when the rotating rods 7 rotate, the sliding block 9 drives the fixed cylinders 13 and the guide cylinders 14 to slide in the sliding grooves in the direction away from the base plate 1 by the balls 10, and simultaneously, the fixed cylinders 13 and the guide cylinders 14 correspondingly rotate on the sliding block 9 by the balls 10 according to the rotation condition of the rotating rods 7 until the limit blocks 15 on the guide cylinders 14 move to the topmost ends of the fixed cylinders 13 in the fixed cylinders 13, at this time, the perforating mechanism 2 on the base plate 1 can be pressed by the rotating rods 7, and when the rotating rods 7 are not stressed, the return spring 12 returns and pulls the guide cylinders 14 to slide into the fixed cylinders 13, thereby pulling the two rotating rods 7 to return.

Further, coupling mechanism 3 includes threaded rod 16 and limiting plate 17, threaded rod 16 with fastener body 5 threaded connection, and be located fastener body 5 inside wall, limiting plate 17 with threaded rod 16 fixed connection, and be located base plate 1 bottom.

In the present embodiment, the base plate 1 has a through hole, the diameter of the limit plate 17 is larger than that of the through hole, and the threaded rod 16 on the limit plate 17 passes through the base plate 1 to be screwed with the fastener body 5, so as to fix the fastener body 5 on the base plate 1.

Further, the piercing mechanism 2 comprises a barb 18 and a plug 19, the barb 18 is fixedly connected with the substrate 1 and is located on the outer side wall of the substrate 1, and the plug 19 is fixedly connected with the barb 18 and is located on the side far away from the substrate 1.

In the present embodiment, when the board 1 is pressed by the rotating lever 7, the board 1 transmits a force to the plug 19 via the barb 18 until the plug 19 penetrates into the board, that is, the board 1 is fixed.

While the invention has been described with reference to a preferred embodiment of a self-piercing fastener, it will be understood by those skilled in the art that the invention is not limited thereto, but is capable of other embodiments and variations.

Claims (5)

1. A self-piercing fastener characterized by a fastener body,

the punching mechanism comprises a base plate, a plurality of punching mechanisms, a connecting mechanism and a fastener, wherein the punching mechanisms are respectively arranged on the outer side wall of the base plate, the connecting mechanism is arranged on the inner side wall of the base plate, and the fastener is arranged at the top of the connecting mechanism;

the fastener includes fastener body, two pivots, two bull sticks and reset assembly, the fastener body with coupling mechanism threaded connection, and be located the coupling mechanism top, two the pivot respectively with fastener body fixed connection all is located fastener body inside wall, two the bull stick respectively with two the pivot is rotated and is connected, all is located the pivot lateral wall, reset assembly sets up in two between the bull stick.

2. The self-piercing fastener of claim 1,

the reset assembly comprises two sliders, two balls, a guide piece and a reset spring, wherein the two sliders are respectively in sliding connection with the two rotating rods and are located on the inner side walls of the rotating rods, the two balls are respectively in rotating connection with the two sliders and are located on one side away from the rotating rods, the guide piece is fixedly connected with the two balls and is located between the two balls, and the reset spring is fixedly connected with the guide piece and is located in the guide piece.

3. The self-piercing fastener of claim 2,

the guide part includes a fixed cylinder, a guide cylinder and a limiting block, the fixed cylinder with ball fixed connection to be located and keep away from one side of slider, the guide cylinder with fixed cylinder sliding connection, and with another ball fixed connection, and run through the fixed cylinder, the limiting block with guide cylinder fixed connection, and be located in the fixed cylinder, one side of reset spring with fixed cylinder fixed connection, reset spring's opposite side with guide cylinder fixed connection, and be located the fixed cylinder with between the guide cylinder.

4. The self-piercing fastener of claim 1,

the connecting mechanism comprises a threaded rod and a limiting plate, the threaded rod is in threaded connection with the fastener body and is positioned on the inner side wall of the fastener body, and the limiting plate is fixedly connected with the threaded rod and is positioned at the bottom of the substrate.

5. The self-piercing fastener of claim 1,

the punching mechanism comprises a barb and a plug, the barb is fixedly connected with the substrate and is positioned on the outer side wall of the substrate, and the plug is fixedly connected with the barb and is positioned on one side far away from the substrate.

Images