CN215567178U

CN215567178U - Fastener applied to elastic thin plate

Info

Publication number: CN215567178U
Application number: CN202120316764.7U
Authority: CN
Inventors: 王荐; 孙强; 段大鹏
Original assignee: PEM China Co Ltd
Current assignee: PEM China Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-01-18
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a fastener applied to an elastic thin plate. The elastic thin plate is provided with a mounting hole and a plurality of slots distributed along the circumferential direction, any one slot is arranged along the radial direction of the mounting hole, and one end of the slot is communicated with the mounting hole. The fastener includes a nut post, an annular portion, a plurality of tabs corresponding to the plurality of slots. The nut post can pass through the mounting hole, and one end of the nut post is provided with a nut head. The annular part is sleeved on the outer wall of the nut post, and a preset distance is reserved between the annular part and the nut head. The plurality of lugs are arranged on the outer wall of the nut post along the circumferential direction, any one lug is arranged between the annular part and the nut head, and any one lug can be clamped into the corresponding slot. The outer diameter of the nut head is larger than that of the nut column. The outer diameters of the nut head and the annular part are both larger than the inner diameter of the mounting hole. The utility model can press the fastener into the mounting hole of the elastic sheet simply and quickly without providing larger mounting impact force.

Description

Fastener applied to elastic thin plate

Technical Field

The utility model relates to the technical field of processing nut structural characteristics on a plate, in particular to a fastener applied to an elastic thin plate.

Background

In the prior art, the main modes of connecting the nut fastener on the thin plate include welding, press riveting and turn riveting.

The nut fastener is connected to the thin plate in a welding mode, a good welding process is needed to control deformation of the thin plate and the nut fastener, and the mode is high in cost and low in efficiency.

The nut fastener is connected on the thin plate in a press riveting mode, the aperture of the preset hole of the thin plate is usually slightly smaller than the embossing teeth of the press riveting nut, the embossing teeth of the press riveting nut are squeezed into the plate through pressure, and the periphery of the preset hole of the thin plate is enabled to generate plastic deformation so as to generate a locking effect. This approach requires the hardness of the sheet material, and when the sheet material is too hard or too thin, the material flow is difficult and a good locking effect cannot be achieved between the sheet and the nut fastener.

The method adopts a rivet turning mode, namely the flange of the nut fastener is utilized to realize the locking with the thin plate, the mode has certain requirements on the hardness of the nut fastener, and the fastener has risks such as cracking and the like in the large deformation process.

The press riveting mode and the turn riveting mode are adopted, and mounting equipment is required to provide large pressure to enable the thin plate or the nut fastener to deform, so that inconvenience is brought to mounting.

In view of the above, there is a need for an improved fastener of the prior art to address the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a fastener applied to an elastic thin plate, which can be simply and quickly pressed into a mounting hole of the elastic thin plate without providing large mounting impact.

The utility model discloses a fastener applied to an elastic sheet, wherein the elastic sheet is provided with a mounting hole and a plurality of slots distributed along the circumferential direction, any one slot is arranged along the radial direction of the mounting hole, and one end of the slot is communicated with the mounting hole; the fastener includes:

the nut post can penetrate through the mounting hole, and one end of the nut post is provided with a nut head;

the annular part is sleeved on the outer wall of the nut post, and a preset distance is reserved between the annular part and the nut head to accommodate the elastic thin plate; and

a plurality of projections provided corresponding to the plurality of slots, any one of the projections being provided between the ring portion and the nut head, one of the projections being connected to the nut stud and/or the nut head, any one of the projections being capable of being snapped into the corresponding slot;

wherein the outer diameter of the nut head is greater than the outer diameter of the nut post;

the outer diameter of the nut head and the outer diameter of the annular portion are both larger than the inner diameter of the mounting hole.

Preferably, the projections are flower teeth.

Preferably, the projection is a rib key, and any one of the rib keys is arranged on the end surface of the nut head facing the nut post.

Preferably, the other end of the nut column is provided with a connecting hole along the axial direction, and the inner wall of the connecting hole is provided with an internal thread.

Preferably, the thickness of the elastic sheet ranges from 0.1mm to 0.5 mm.

Preferably, the outer diameter of the annular part is d1, and the inner diameter of the elastic thin plate mounting hole is d2, d1> d 2.

Preferably, the distance between the annular part and the nut head is L1, and the thickness of the elastic sheet is L2, 0.1mm ≦ L1-L2 ≦ 1 mm.

The utility model has the following beneficial effects:

the utility model is applied to the fastener of the elastic thin plate, when the elastic thin plate and the fastener are installed, the metal flow which causes the elastic thin plate to generate plastic deformation is not needed, therefore, the installation impact force does not need to be provided, the fastener can be simply and rapidly pressed into the installation hole of the elastic thin plate, and the elastic thin plate enters the containing groove between the annular part and the nut head only through elastic deformation.

The fastener applied to the elastic thin plate can be matched with the nut head through the annular part and act on two end surfaces of the elastic thin plate respectively, a clamping state is formed, the elastic thin plate is clamped, and therefore the elastic thin plate is restrained along the length direction of the nut column.

According to the fastener applied to the elastic thin plate, the plurality of the convex blocks are arranged between the annular part and the nut head, and any one of the convex blocks can be clamped into the corresponding slot, so that after the fastener is installed on the elastic thin plate, the convex blocks can be matched with the slot of the elastic thin plate, torsion resistance in the rotating direction is provided, and a good locking effect is formed between the elastic thin plate and the fastener.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

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 the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an elastic sheet according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a fastener in an embodiment of the utility model;

FIG. 3 is a schematic view showing an installation state of a fastener and an elastic sheet in the embodiment of the present invention;

FIG. 4 is a schematic structural view of a fastener according to another embodiment of the present invention;

FIG. 5 is a schematic view showing an assembled state of a fastener and an elastic sheet in another embodiment of the present invention;

reference numerals of the above figures: 1-mounting holes; 2-a slot; 3-nut post; 4-a ring-shaped portion; 5-nut head; 6-connecting hole; 7-serration; 8-a tendon bond; 9-internal thread; 10-elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present embodiment provides a fastener for use with an elastic sheet 10.

Referring to fig. 1, the elastic thin plate 10 of the present embodiment is provided with a mounting hole 1 and a plurality of slots 2 arranged along a circumferential direction. The mounting hole 1 penetrates the elastic sheet 10 in the thickness direction of the elastic sheet 10. Any one of the slits 2 penetrates the elastic sheet 10 in the thickness direction of the elastic sheet 10. Any one of the slots 2 is disposed in a radial direction of the mounting hole 1. One end of any one of the slots 2 communicates with the mounting hole 1, and the other end thereof extends in a direction away from the mounting hole 1. The mounting holes 1 and the slots 2 of the elastic sheet 10 need to be punched out in advance before the elastic sheet 10 and the fasteners are mounted. The elastic sheet 10 of the present embodiment includes a metal-based sheet such as a stainless steel sheet or a carbon steel sheet, and a nonmetal-based sheet such as an ABS plastic sheet. In this embodiment, the elastic sheet 10 is set to be circular for convenience of illustration, and the elastic sheet 10 may be any shape and any length and width in actual production.

Referring now more particularly to fig. 2-3, the fastener of the present embodiment includes a nut stud 3, a nut head 5, an annular portion 4, and a plurality of lugs.

The nut column 3 is cylindrical. The nut post 3 can pass through the mounting hole 1 of the elastic thin plate 10 so that the nut post 3 can be mounted with the elastic thin plate 10. At one end of the nut post 3, a coupling hole 6 is opened in an axial direction thereof, and the coupling hole 6 is adapted to be screw-coupled with an external member so that the external member can be mounted to the elastic thin plate 10. The other end of the nut column 3 is provided with a nut head 5. The opening of the connecting hole 6 is arranged at one end of the nut column 3 back to the nut head 5. The nut head 5 of this embodiment is in the shape of a disk.

The annular portion 4 is sleeved on the outer wall of the nut post 3, and a preset distance is reserved between the annular portion 4 and the nut head 5, so that a containing groove is formed between the annular portion 4 and the nut head 5 to contain the elastic thin plate 10. The outer diameter of the nut head 5 is larger than that of the nut post 3. The outer diameter of the nut head 5 and the outer diameter of the annular part 4 are both larger than the inner diameter of the mounting hole 1. Therefore, after the elastic thin plate 10 and the fastening piece are installed, the annular part 4 and the nut head 5 can be matched with each other to act on two end surfaces of the elastic thin plate 10 respectively, so that the elastic thin plate 10 is clamped to form a clamping state, and the elastic thin plate 10 is restrained along the length direction of the nut column 3. The ring part 4 is a flange ring in this embodiment.

Or according to application requirements, a certain pressure is applied to the annular part 4, and after the annular part 4 is slightly deformed, the elastic thin plate 10 is clamped by matching with the nut head 5.

A plurality of projections provided corresponding to the plurality of slots 2, the plurality of projections being provided on an outer wall of the nut post 3 in a circumferential direction, any one of the projections being provided between the annular portion 4 and the nut head 5, and any one of the projections being capable of being engaged into the corresponding slot 2. When the fastening member is attached to the elastic sheet 10, the fastening member is pressed into the attachment hole 1 of the elastic sheet 10, and the plurality of projections are engaged in the corresponding slots 2.

After the installation is completed, the lug can be matched with the slot 2 of the elastic thin plate 10, so that the torsion resistance force in the rotating direction is provided for the fastening piece, the fastening piece is prevented from rotating around the axis of the nut column 3 relative to the elastic thin plate 10, and a good locking effect is formed between the elastic thin plate 10 and the fastening piece. Therefore, the periphery of the mounting hole 1 of the elastic thin plate 10 can achieve a good locking effect without generating plastic deformation, so that the periphery of the mounting hole 1 of the elastic thin plate 10 does not need to generate plastic deformation through large stamping pressure, the mounting efficiency can be improved, and the cost is reduced.

When attaching a fastener to the elastic thin plate 10, the nut post 3 of the fastener is inserted into the attachment hole 1 of the elastic thin plate 10, and the elastic thin plate 10 can be directly engaged between the ring portion 4 and the nut head 5 by pressing the nut head 5 of the nut post 3 or pressing the elastic thin plate 10 with a hand-operated auxiliary tool such as a hand or a rubber hammer by an operator.

When the fastener is installed on the elastic thin plate 10, if the projection of the fastener is not aligned with the slot 2 of the elastic thin plate 10, the nut post 3 may be twisted to provide a twisting force to the nut post 3, so that the projection is aligned with the corresponding slot 2, thereby being caught in the slot 2.

Since the elastic sheet 10 and the fastening member are mounted without requiring a large punching force and generating plastic deformation in this embodiment, when the elastic sheet 10 is mounted with the fastening member, if the projection of the fastening member is not aligned with the slot 2 of the elastic sheet 10, the mounting may not be adjusted. In use, as the installation between the external element and the fastener requires the use of an installation tool to provide an installation torque, the fastener is twisted, and as a result of the torsion provided to the nut stud 3, the lug is aligned with its corresponding slot 2 and thereby snaps into the slot 2.

The installation of the elastic thin plate 10 and the fastening piece of the embodiment does not need to make the elastic thin plate 10 generate the metal flow of plastic deformation, does not need to provide larger installation impact force, is simple and quick in installation mode, can simply and quickly press the fastening piece into the installation hole 1 of the elastic thin plate 10, and the elastic thin plate 10 enters the containing groove between the annular part 4 and the nut head 5 only through elastic deformation.

The convex block in the embodiment is a flower tooth 7, and the flower tooth 7 is arranged on the outer wall of the nut column 3. The four flower teeth 7 are uniformly distributed on the outer wall of the nut column 3. The elastic sheet 10 has a total of four slots 2. The serrations 7 and slots 2 are correspondingly arranged. Any one of the serrations 7 is capable of snapping into its corresponding slot 2. In practical application, the number of the teeth 7 can be adjusted according to the use requirement.

Referring now more particularly to fig. 4-5, in another embodiment, the projections are rib tabs 8. Any one of the rib keys 8 is arranged on the end surface of the nut head 5 facing the nut post 3, and any one of the rib keys 8 is arranged along the radial direction of the nut post 3. The width of the rib 8 is adapted to the width of the slot 2. The length of the tendon 8 is smaller than that of the slot 2, and in practical application, the tendon length can be adjusted according to application and appearance requirements. In the present embodiment, four rib keys 8 are provided in total to correspond to the four slots 2, and any one rib key 8 can be snapped into the slot 2 corresponding thereto. In practical application, the number of the rib keys 8 can be adjusted according to use requirements. In practical application, the radial cross-sectional shapes of the rib keys, such as semi-circle, semi-ellipse, rectangle, trapezoid and triangle, can be adjusted according to application and appearance requirements.

The inner wall of the connection hole 6 of the present embodiment is provided with an internal thread 9 to enable a foreign member to be screw-coupled with the fastener.

The thickness of the elastic sheet 10 of this embodiment is 0.1 to 0.4 mm. For the thin plate in the thickness range, the fastening piece and the thin plate are tightly installed mainly by using the deformation of the fastening piece in the prior art, so that a nut structural feature is riveted and installed on the thin plate. By adopting the fastener in the embodiment, better installation effect can be achieved without deformation.

The outer diameter of the annular part 4 of the embodiment is d1, the inner diameter of the mounting hole 1 of the elastic thin plate 10 is d2, and d1-d2 are more than or equal to 0.3mm and less than or equal to 0.5 mm. Thereby, the annular portion 4 can be abutted against the surface of the elastic sheet 10 facing the annular portion 4, and the annular portion 4 can sandwich the elastic sheet 10 in cooperation with the nut head 5. Meanwhile, when the elastic thin plate 10 and the fastening piece are installed, the installation hole 1 of the elastic thin plate 10 passes through the flange plate through elastic deformation, so the outer diameter of the annular part 4 cannot be too large, and the installation hole 1 of the elastic thin plate 10 can pass through the flange plate through elastic deformation by setting d1-d2 to be 0.5mm which is more than or equal to 0.3 mm.

The distance between the annular part 4 and the nut head 5 is L1, the thickness of the elastic thin plate 10 is L2, and the thickness is more than or equal to 0.1mm and less than or equal to L1-L2 and less than or equal to 0.2 mm. Thereby, the elastic thin plate 10 is enabled to be interposed between the ring portion 4 and the nut head 5, and no wobbling in the axial direction of the nut post 3 occurs.

The ring portion in this embodiment is a complete ring, in another alternative embodiment the ring portion is an interrupted ring. The discontinuous ring is equivalent to a plurality of gaps arranged on the complete ring.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The fastener applied to the elastic thin plate is characterized in that the elastic thin plate is provided with a mounting hole and a plurality of slots distributed along the circumferential direction, any one slot is arranged along the radial direction of the mounting hole, and one end of the slot is communicated with the mounting hole; the fastener includes:

2. The fastener applied to an elastic sheet as claimed in claim 1, wherein said projections are flower teeth.

3. The fastener for elastic sheet according to claim 1, wherein said projection is a rib key, and any one of said rib keys is provided on an end surface of said nut head facing said nut stem.

4. The fastening member for the elastic sheet as claimed in claim 1, wherein the nut shank has a coupling hole formed at the other end thereof in the axial direction thereof, and an inner wall of the coupling hole is provided with an internal thread.

5. The fastener for elastic sheet according to claim 1, wherein the elastic sheet has a thickness in the range of 0.1 to 0.5 mm.

6. The fastener for elastic sheet according to claim 1, wherein the ring portion has an outer diameter of d1, and the elastic sheet mounting hole has an inner diameter of d2, d1> d 2.

7. The fastener applied to an elastic sheet as claimed in claim 1, wherein the distance between the ring portion and the nut head is L1, and the thickness of the elastic sheet is L2, 0.1mm ≦ L1-L2 ≦ 1 mm.