Plastic screw rod with novel structure

Abstract

The utility model discloses a plastic screw rod with a novel structure, which comprises a plastic screw rod body, the plastic screw rod body comprises a screw rod seat, an extension section and a thread section, the screw rod seat, the extension section and the thread section are integrally formed through injection molding, the screw rod seat comprises a barrel body with a hollow structure, one end of a connecting piece is uniformly arranged on the inner wall of the barrel body, and the other end of the connecting piece is connected with the screw rod seat. The other end of the connecting piece is fixedly connected to the extension section, the head end of the extension section is connected with a threaded section, the tail end of the extension section is provided with a groove portion of a linear structure, the section of the extension section is of a rectangular structure, and the threaded section comprises a spiral-line-shaped threaded portion and a plane portion with a flat appearance. One basic surface of the thread section is the cylindrical surface, the other basic surface of the thread section is the plane, and the groove part with the linear structure is arranged on the extension section, so that the rotation operation is convenient, and the purposes of looseness prevention and vibration resistance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rods, in particular to a plastic screw rod with a new structure. Background Art

[0002] In various mechanical devices and industrial fields, it is necessary to achieve connection through screws. Ordinary threads are spirally placed threads on the surface of a cylinder, which are used to connect and fix two workpieces, while plane threads are mainly used for positioning and fixing workpieces, and their function is to keep the relative positions of two workpieces unchanged when they rotate. In mechanical processing, plane threads are widely used for fixing and positioning various mechanical equipment. The utility model is a design that adopts plane threads on screws, and proposes a plastic screw with a new structure. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a plastic screw with a new structure, specifically, one basic surface of the threaded section is a cylindrical surface, the other basic surface is a plane, and a groove portion with a I-shaped structure is provided on the extended section to facilitate the rotation operation and achieve the purpose of anti-loosening and vibration resistance.

[0004] A plastic screw with a novel structure in the utility model comprises a plastic screw body, wherein the plastic screw body comprises a screw seat, an extension section and a thread section, and the screw seat, the extension section and the thread section are integrally injection molded;

[0005] The screw seat comprises a hollow cylinder, one end of a connecting piece is evenly arranged on the inner wall of the cylinder, the other end of the connecting piece is fixedly connected to the extension section, and the number of the connecting pieces is at least three;

[0006] The head end of the extension section is connected with a threaded section, the tail end of the extension section is provided with a groove portion of a straight structure, and the cross section of the extension section is a rectangular structure;

[0007] The thread segment comprises a spiral thread portion and a flat surface portion, and the flat surface portions are two and arranged oppositely.

[0008] Preferably, an annular protrusion is provided on the outer wall of the cylinder, and the position of the annular protrusion is close to the connecting piece.

[0009] Preferably, the number of the connecting members is four.

[0010] Preferably, the connecting piece is an L-shaped structure, the side edge of the long side is fixedly connected to the inner wall of the cylinder, and the head end of the short side is fixedly connected to the extension section.

[0011] The advantages and beneficial effects of the utility model are: it is a new type of plastic screw, the screw seat, the extension section and the threaded section are formed in one piece, four connecting pieces are arranged on the screw seat, the four connecting pieces act on the extension section, and the firmness of the extension section can be ensured, and a groove of a straight structure is arranged at the tail end of the extension section, and the screw can be rotated by a screwdriver, and the threaded section has two basic surfaces, one of which is a cylindrical surface and the other is a plane surface, and the structure is mainly used for positioning and fixing workpieces to achieve the purpose of anti-loosening and vibration resistance. Therefore, it is widely used in many mechanical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the screw rod of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the screw rod of the utility model.

[0014] In the figure: 1, threaded section; 2, extension section; 3, screw seat; 4, connecting piece; 5, groove portion; 6, annular protrusion. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-2 The utility model provides a technical solution: a plastic screw with a new structure, including a plastic screw body, the plastic screw body includes a screw seat 3, an extension section 2 and a threaded section 1, and the screw seat 3, the extension section 2 and the threaded section 1 are integrally injection molded by an injection molding machine.

[0017] The screw seat 3 includes a hollow cylinder, one end of which is evenly provided with a connecting piece 4 on the inner wall of the cylinder, and the other end of the connecting piece 4 is fixedly connected to the extension section 2, specifically to the outer wall of the extension section 2, and the number of the connecting pieces 4 is at least three or more. In this case, the number of the connecting pieces 4 is preferably four, and the four connecting pieces 4 can have a better fixing effect on the extension section 2. The connecting piece 4 is an L-shaped structure, the side of the long side is fixedly connected to the inner wall of the cylinder, and the head end of the short side is fixedly connected to the extension section, mainly

[0018] The connecting piece 4 has a certain contact area with the inner wall of the cylinder and the extension section respectively, so as to ensure the firmness of the screw.

[0019] The head end of the extension section 2 is connected to the threaded section 1, and the tail end of the extension section 2 is provided with a groove portion 5 with a straight structure. The cross-section of the extension section 2 is a rectangular structure. When it is difficult to manually rotate the screw seat 3, the operator can use a straight screwdriver, align it and insert it into the groove portion 5 before rotating it.

[0020] The thread segment 1 includes a spiral-shaped thread portion and a flat surface plane portion. The plane portions are in two locations and are oppositely arranged, so the thread portions are also in two locations and are oppositely arranged. Therefore, the thread segment 1 has two surfaces, one is the cylindrical surface of the thread structure, and the other is a flat plane. The difference between this structure and ordinary threads is that it is used for positioning and fixing workpieces. Its function is to keep the relative position of the two workpieces unchanged when rotating.

[0021] An annular protrusion 6 is provided on the outer wall of the cylinder. The annular protrusion 6 is located close to the connecting piece 4 and can serve the purpose of reinforcing the plate.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic screw with a new structure, comprising a plastic screw body, characterized in that: The plastic screw body comprises a screw seat, an extension section and a threaded section, and the screw seat, the extension section and the threaded section are integrally injection molded; The screw seat comprises a hollow cylinder, one end of a connecting piece is evenly arranged on the inner wall of the cylinder, the other end of the connecting piece is fixedly connected to the extension section, and the number of the connecting pieces is at least three; The head end of the extension section is connected with a threaded section, the tail end of the extension section is provided with a groove portion of a straight structure, and the cross section of the extension section is a rectangular structure; The thread segment comprises a spiral thread portion and a flat surface portion, and the flat surface portions are two and arranged oppositely.

2. A novel plastic screw according to claim 1, characterized in that: The outer wall of the cylinder is provided with an annular protrusion, and the position of the annular protrusion is close to the connecting piece.

3. A novel plastic screw according to claim 1, characterized in that: The number of the connecting pieces is four.

4. A novel plastic screw according to claim 1, characterized in that: The connecting piece is an L-shaped structure, the side edge of the long side is fixedly connected to the inner wall of the cylinder, and the head end of the short side is fixedly connected to the extension section.

Images