CN202125506U - Round port screw - Google Patents

Abstract

The utility model discloses a circular port screw, including screw rod and screw thread, the screw rod includes the screw rod main part, and sets up at the spiral shell head of screw rod main part one end and sets up the spiral shell tail at the screw rod main part other end, the spiral shell tail is provided with and is used for twisting the recess of elasticity, the spiral shell head is semi-circular. The diameter of the screw head is the same as that of the screw body. The screw head and the screw port are in interference fit. The groove is in a straight shape or a cross shape. When the screw is used for fixing a product, the screw is screwed into the screw socket of the fixed product through the groove of the screw tail, the screw head of the screw is designed into a semi-circle shape, the screw head and the screw socket are in interference fit, after the screw is screwed up, no gap exists between the screw socket and the screw, the screw is not easy to loosen, the firmness and the tightness are good, when the product is acted by external force, the screw restrains the product while fixing the product, and the screw has reaction force and has the function of fixing and positioning.

Description

A round port screw

technical field

The utility model relates to a round port screw.

Background technique

Although the screw has an excellent locking function, it is also easy to loosen. Since the screw head of the ordinary screw is flat, there is still a gap in the screw hole when tightening, and air and moisture are easy to run in, causing the product to be vibrated. It is easy to loosen and come off when it is used, causing unnecessary trouble. In order to avoid this situation, it is necessary to design a screw that is not easy to loosen and has better tightness.

Contents of the invention

The technical problem to be solved by the utility model is to provide a circular port screw which is not easy to loosen, has good tightness, has reaction force and has fixed positioning function. The utility model is achieved through the following technical solutions:

A round port screw of the present utility model comprises a screw and a screw thread, the screw includes a screw body, a screw head arranged at one end of the screw body and a screw tail arranged at the other end of the screw body, and the screw tail is provided with a Unscrew the tight groove, the screw head is semicircular.

Preferably, the diameter of the screw head is the same as the diameter of the screw body.

Preferably, the screw head and the screw port are interference fit.

Preferably, the groove is in the shape of a straight line or a cross.

When the circular port screw of the utility model is used to fix a product, the screw is screwed into the screw port of the fixed product through the groove of the screw tail, because the screw head of the screw is designed to be semicircular, and the screw head and the screw head are connected to each other. mouth

For interference fit, after the screw is tightened, there is no gap between the screw and the screw, and it is not easy to loosen. role of positioning.

Description of drawings

For ease of description, the utility model is described in detail by the following preferred embodiments and accompanying drawings.

Fig. 1 is the schematic diagram before the round port screw of the utility model is not changed;

Fig. 2 is a schematic diagram of a circular port screw of the present invention.

Detailed ways

As shown in Fig. 2, a kind of circular port screw of the present utility model comprises screw rod 1 and screw thread 2, and described screw rod 1 comprises screw rod main body 11, and the screw head 12 that is arranged on one end of screw rod main body 11 and is arranged on screw rod main body 11 The screw tail 13 at the other end is provided with a groove 14 for loosening and tightening, and the screw head 12 is semicircular. It has the characteristics of not easy to loosen and good tightness.

Wherein, the diameter of the screw head 12 is the same as that of the screw body 11 . The screw head 12 is an interference fit with the screw port. The groove 14 is straight or cross-shaped.

When the circular port screw of the utility model is used to fix a product, the screw is screwed into the screw port of the fixed product through the groove of the screw tail, because the screw head of the screw is designed to be semicircular, and the screw head and the screw head are connected to each other. The mouth is an interference fit. After tightening the screw, there is no gap between the screw mouth and the screw, and it is not easy to loosen. It has good firmness and tightness. When the product is subjected to external force, the screw restrains the product while fixing the product. The role of fixed positioning.

The above-described embodiment is only an example of the utility model, and is not used to limit the implementation and scope of rights of the utility model. All technical solutions that are identical or equivalent to the claims of the utility model should be included in the utility model. within the scope of protection.

Claims (4)

1. A round port screw, comprising a screw rod and a thread, the screw rod comprising a screw body, a screw head arranged at one end of the screw body and a screw tail arranged at the other end of the screw body, the screw tail being provided with a screw for tightening The groove is characterized in that: the screw head is semicircular. 2. The round port screw according to claim 1, wherein the diameter of the screw head is the same as that of the screw body. 3. The round port screw according to claim 1, wherein the screw head and the screw mouth are interference fit. 4. The round port screw according to claim 1, wherein the groove is in the shape of a straight line or a cross.

Images