CN201083223Y - Screw nail - Google Patents

Abstract

The utility model discloses a screw, including a self-tapping screw with a self-tapping thread, wherein the self-tapping thread is a double-thread structure in the same direction, the self-tapping screw is provided with two nail heads, which are respectively connected to two threads in the same direction, and the end of the self-tapping screw is provided with a columnar body, and a rotating thread is arranged on the surface of the columnar body, and the thread direction of the rotating thread is in the same direction or in the opposite direction to the self-tapping thread direction of the self-tapping screw. The utility model is provided with two nail heads on the self-tapping screw, and the two nail heads are connected to two threads in the same direction to form a double-thread structure, which has a simple structure, is convenient and practical, and makes the speed of screwing the self-tapping screw into the object faster, saving time and labor.

Description

a screw

technical field

The utility model relates to a screw used for connection and installation.

Background technique

At present, in the field of machinery or daily life, when two parts or parts need to be connected, the usual method is to use bolts, screws or rivets to connect them, but at present ordinary bolts, screws or rivets are all With a single screw head and single thread structure, it takes a lot of effort to screw the self-tapping screw into the object.

Utility model content

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a screw with simple structure, convenient use, time-saving and labor-saving, and can quickly connect two objects.

The utility model can be realized through the following technical solutions:

A screw, including a self-tapping screw with self-tapping threads, the self-tapping screw is a double-thread structure in the same direction, and two nail heads of the self-tapping screw are respectively connected to two threads in the same direction.

The end of the self-tapping screw is provided with a cylindrical body, and a rotating thread is arranged on the surface of the cylindrical body. The thread direction of the rotating thread is the same or opposite to that of the self-tapping thread of the self-tapping screw.

When the direction of the rotating thread on the surface of the cylindrical body is in the same direction as the self-tapping thread of the self-tapping screw, it is necessary to screw one end of the screw into a nut or an object first, and then screw the other end into another object. In this way, it can be reflected that the screw does not need any other accessories to connect, which is simple to operate, convenient and practical. When the direction of the rotating thread on the surface of the columnar body is opposite to the self-tapping thread direction of the self-tapping screw, the two ends of the screw can be screwed into the two objects by turning the screw, and the connection is faster. For example, it is necessary to connect a An object with a nut and a wooden object, when the direction of the rotating thread on the surface of the columnar body is opposite to that of the self-tapping screw self-tapping thread, the direction of the self-tapping screw can be aligned with the wooden object, and the other end Align the object with the nut, and rotate the screw at the same time, that is, the two objects can be tightly connected under the action of the screw, and they can be connected very quickly.

The main feature of the utility model is that the self-tapping screw of the self-tapping screw is a double thread structure in the same direction, that is, the single thread in the current technology is improved to the double thread in the present technology, and the single self-tapping screw head in the prior art Improve the double screw head in the cost technology, the double screw head connects two threads in the same direction respectively, the screw head of the double thread structure makes the speed of screwing the self-tapping screw into the object faster, saves time and effort.

Compared with the prior art, the utility model has the following advantages:

The utility model is provided with two nail heads on the self-tapping screw, and the two screw heads are divided into a double thread structure formed by connecting two threads in the same direction. Faster, more time-saving and labor-saving, very popular among users.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the utility model nail head structure schematic diagram.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description:

As shown in accompanying drawing 1, accompanying drawing 2, a kind of screw comprises self-tapping screw 2 with self-tapping thread 1, and described self-tapping thread 1 is the same direction double-thread structure, and nail head is arranged on described self-tapping screw 3. The nail head 4 is respectively connected with two threads in the same direction.

The end of the self-tapping screw is provided with a cylindrical body, and a rotating thread is arranged on the surface of the cylindrical body. The thread direction of the rotating thread is the same or opposite to that of the self-tapping thread of the self-tapping screw.

When the direction of the rotating thread on the surface of the cylindrical body is in the same direction as the self-tapping thread of the self-tapping screw, it is necessary to screw one end of the screw into a nut or an object first, and then screw the other end into another object. In this way, it can be reflected that the screw does not need any other accessories to connect, which is simple to operate, convenient and practical. When the direction of the rotating thread on the surface of the columnar body is opposite to the self-tapping thread direction of the self-tapping screw, the two ends of the screw can be screwed into the two objects by turning the screw, and the connection is faster. For example, it is necessary to connect a An object with a nut and a wooden object, when the direction of the rotating thread on the surface of the columnar body is opposite to that of the self-tapping screw self-tapping thread, the direction of the self-tapping screw can be aligned with the wooden object, and the other end Align the object with the nut, and rotate the screw at the same time, that is, the two objects can be tightly connected under the action of the screw, and they can be connected very quickly.

The main feature of this embodiment is that the self-tapping thread of the self-tapping screw is a double thread structure in the same direction, that is, the single thread in the current technology is improved to the double thread in the present technology, and the single self-tapping screw in the prior art The double screw head in cost technology is improved, and the double screw head is respectively connected with two threads in the same direction. The screw head with double thread structure makes the self-tapping screw screw into the object faster, saving time and effort.

Claims (4)

1. screw includes the self threading pin (2) of Thread Forming TF (1), and it is characterized in that: described Thread Forming TF (1) is two in the same way worm structures.

2. screw according to claim 1 is characterized in that: the ailhead of described self threading pin is provided with two, connects two screw threads in the same way respectively.

3. screw according to claim 2 is characterized in that: described self threading pin end is provided with Cylindrical object (11), is laid with rotation screw thread (22) on the Cylindrical object surface.

4. screw according to claim 3 is characterized in that: the hand of spiral of described rotation screw thread (22) and self threading pin Thread Forming TF direction are in the same way or oppositely.

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