CN111911508A

CN111911508A - Double-layer self-locking pin

Info

Publication number: CN111911508A
Application number: CN202010794215.0A
Authority: CN
Inventors: 彭鹏; 唐伟华
Original assignee: Shanghai Hepeng New Materials Technology Co ltd
Current assignee: Shanghai Hepeng New Materials Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-11-10

Abstract

The invention discloses a double-layer self-locking pin which comprises an umbrella cap, wherein the middle part of the umbrella cap is connected with a pin rod, an upper gasket is arranged below the umbrella cap, the pin rod penetrates through the middle part of the upper gasket and is fixedly connected with the upper gasket, and a lower gasket is arranged below the upper gasket. The invention does not need to punch, can directly punch materials by a pin matched with a matched nailing machine, is directly formed at one time, and can save a long time; the thickness of the product can be adjusted, and pins with various lengths do not need to be customized; the arc-shaped umbrella cap has a double-layer design, is attractive and elegant, and is firm and durable; when a customer installs the umbrella, the round opening of 360 degrees is formed between the umbrella cap and the lower gasket, so that the customer can put the connected stainless steel wire or the spring sleeve on the umbrella without seeing the stainless steel wire or the spring sleeve by eyes, the installation and the operation are easy, and the umbrella is very convenient and practical especially in a narrow space.

Description

Double-layer self-locking pin

Technical Field

The invention relates to the technical field of pins, in particular to a double-layer self-locking pin.

Background

In production, many cloth or leather textile processing plants use pins to secure multiple layers of material. Three types of pins are commonly used in the market at this stage, the first: firstly, drilling a hole, plugging a pin, and using a clamp to clamp the pin angle respectively to clamp the pin angle with an object, thereby wasting time and labor; when the installation, an iron wire or a rope is required to penetrate through a small round hole of the pin and then return to penetrate through the round hole of the pin at the other end, the two sides of the round hole are fixed, the small round hole of the pin cannot be seen by eyes in a narrow area, the small round hole cannot be accurately penetrated by the small iron wire, and the installation is very difficult.

A second pin: the pin adopts a screw structure, a hole is drilled firstly, then the screw pin is inserted, and the screw is screwed tightly by the nut;

a third pin: a hole is drilled, inserted with a rivet, and the rivet is set with a riveting machine, but is only suitable for relatively thin materials and must be perforated.

Disclosure of Invention

The invention aims to provide a double-layer self-locking pin to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a double-deck auto-lock pin, includes the umbrella cap, the nail pole is connected at umbrella cap middle part, umbrella cap below is equipped with the gasket, the nail pole passes gasket middle part to fixed connection, it is equipped with down the gasket to go up the gasket below.

Preferably, a space is arranged between the umbrella cap and the upper gasket, and the space is matched with the umbrella cap and the upper gasket to form a clamping groove.

Preferably, the middle part of the lower gasket is provided with a round hole, and the lower gasket is sleeved on the nail rod through the round hole and can move up and down along the nail rod.

Preferably, the upper half part of the nail rod is of a solid structure, the lower half part of the nail rod is of a hollow structure, the hollow structure of the nail rod can form a turned edge under the action of pressure, and the radius of the turned edge is larger than that of the central round hole of the lower gasket.

The invention has the technical effects and advantages that: the invention does not need to punch, can directly punch materials by a pin matched with a matched nailing machine, is directly formed at one time, and can save a long time; the thickness of the product can be adjusted, and pins with various lengths do not need to be customized; the arc-shaped umbrella cap has a double-layer design, is attractive and elegant, and is firm and durable; when a customer installs the umbrella, the round opening of 360 degrees is formed between the umbrella cap and the lower gasket, so that the customer can put the connected stainless steel wire on the sleeve without seeing the stainless steel wire by eyes, the installation and the operation are easy, and the umbrella is very convenient and practical especially in a narrow space.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the nail shank after press fitting;

FIG. 4 is a schematic view of the installation of the present invention;

in the figure: 1-umbrella cap, 2-nail rod, 3-upper gasket, 4-lower gasket, 5-curling edge, 6-clamping groove, 7-upper mold clamping mouth, 8-lower mold thimble and 9-upper mold head.

Detailed Description

In the description of the present invention, it should be noted that unless otherwise specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

Example 1

The double-layer self-locking pin comprises an umbrella cap 1, a nail rod 2 is connected to the middle of the umbrella cap 1, an upper gasket 3 is arranged below the umbrella cap 1, the nail rod 2 penetrates through the middle of the upper gasket 3 and is fixedly connected with the upper gasket 3, and a lower gasket 4 is arranged below the upper gasket 3.

Example 2

A double-deck auto-lock pin as shown in fig. 1, including umbrella cap 1, the nail pole 2 is connected at 1 middle part of umbrella cap, 1 below of umbrella cap is equipped with gasket 3, nail pole 2 passes gasket 3 middle part, and fixed connection, it is equipped with down gasket 4 to go up 3 below of gasket, 4 middle parts of gasket are equipped with the round hole down, gasket 4 is through the round hole cover on nail pole 2 down to can follow 2 up-and-down motion of nail pole, 2 first parts of nail pole are solid structure, and the latter half is hollow structure, the hollow structure of nail pole 2 can form turn-up 5 under the pressure, the radius of turn-up 5 is greater than the radius of 4 central round holes of lower gasket, be equipped with the interval between umbrella cap 1 and the last gasket 3, interval cooperation umbrella cap 1 forms draw-in groove 6 with last gasket 3.

The process flow and the working principle of the invention are as follows: as shown in fig. 4, the clamping groove 6 of the pin is clamped on the upper die clamping mouth 7, the lower gasket 4 of the pin is fixed on the lower die thimble 8, the material to be pinned is placed between the upper die clamping mouth 7 and the lower die thimble 8, the force is transferred by the transmission mechanism to act on the upper die head 9 in the upper die clamping mouth 7, the upper die head 9 vertically presses the umbrella cap 1 downwards to pierce the material, the hollow structure below the pin rod 2 is jacked open by the lower die thimble 8 to force the hollow structure to be scattered to the periphery, and a turned edge 5 is formed, so that the lower gasket 4 of the pin is fixed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a double-deck auto-lock pin, includes the umbrella cap, its characterized in that: the middle part of the umbrella cap is connected with a nail rod, an upper gasket is arranged below the umbrella cap, the nail rod penetrates through the middle part of the upper gasket and is fixedly connected with the upper gasket, and a lower gasket is arranged below the upper gasket.

2. The double-layer self-locking pin according to claim 1, characterized in that: a space is arranged between the umbrella cap and the upper gasket, and the space is matched with the umbrella cap and the upper gasket to form a clamping groove.

3. The double-layer self-locking pin according to claim 1, characterized in that: the middle part of the lower gasket is provided with a round hole, and the lower gasket is sleeved on the nail rod through the round hole and can move up and down along the nail rod.

4. The double-layer self-locking pin according to claim 1, characterized in that: the nail rod upper half is solid structure, and the latter half is hollow structure, the hollow structure of nail rod can form the turn-up under the pressure effect, the radius of turn-up is greater than the radius of lower gasket center round hole.