CN203926296U - Hinged bolt - Google Patents

Abstract

The utility model relates to a kind of hinged bolt, comprise bolt head, it is characterized in that: described bolt head has a polished rod portion, the end face of polished rod portion is provided with a screw-threaded counterbore, also include a body of bolt, one end of the body of bolt is the first external thread part, and the first external thread part is connected with screw-threaded counterbore, and the other end of the body of bolt is the second external thread part.Advantage is: the utility model is by being divided into plain bolt bolt head and the body of bolt, make the body of bolt can adapt to less threaded interior hole, bolt head can adapt to larger unthreaded hole, to reduce the gap between polished rod portion and the unthreaded hole of bolt head, has improved the positioning precision of screw thread.Meanwhile, can also reduce the quantity of connecting bolt, reduce the burden of production management.

Description

Hinged bolt

Technical field

The utility model belongs to the connection set technical field of parts, relates in particular to a kind of hinged bolt.

Background technique

Mutual inductor device body secondary inserts used has M5 and two kinds of specifications of M6, use on same mould, for clamping bolt can be fastening through through hole and secondary inserts on mould, through hole on mould is to set according to the bolt of large-size, and aperture is φ 6.1, while using the bolton of M5, the bolt of M5 is through larger hole, the internal diameter in hole and the external diameter of screw thread differ more, and its locating effect is poor, may make inserts produce skew.

Summary of the invention

The utility model provides a kind of hinged bolt for solving the technical problem existing in known technology, and this bolt can adapt to the through hole that internal diameter is obviously greater than the diameter of thread.

The technological scheme that the utility model is taked for the technical problem existing in solution known technology is:

A kind of hinged bolt, comprises bolt head, it is characterized in that: described bolt head has a polished rod portion, and the end face of polished rod portion is provided with a screw-threaded counterbore,

Also include a body of bolt, one end of the body of bolt is the first external thread part, and the first external thread part is connected with screw-threaded counterbore, and the other end of the body of bolt is the second external thread part.

Advantage and the good effect that the utlity model has are:

The utility model has adopted after above technological scheme, by plain bolt being divided into bolt head and the body of bolt, make the body of bolt can adapt to less threaded interior hole, bolt head can adapt to larger unthreaded hole, with the gap between polished rod portion and the unthreaded hole of reduction bolt head, improve the positioning precision of screw thread.Meanwhile, can also reduce the quantity of connecting bolt, reduce the burden of production management.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of bolt head of the present utility model;

Fig. 3 is the structural representation of the M6 body of bolt of the present utility model;

Fig. 4 is the structural representation of the M5 body of bolt of the present utility model.

In figure: 1, bolt head; 11, polished rod portion; 12, screw-threaded counterbore; 2, the body of bolt; 21, the first external thread part; 22, the second external thread part.

Embodiment

For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1 to Fig. 4,

A kind of hinged bolt, comprise bolt head 1, bolt head has a polished rod portion 11, the end face of polished rod portion is provided with a screw-threaded counterbore 12, also include a body of bolt 2, one end of the body of bolt is that the first external thread part 21, the first external thread parts are connected with screw-threaded counterbore, and the other end of the body of bolt is the second external thread part 22.

Operating principle of the present utility model is:

In the time of dress mould, if secondary place is M6 with inserts tapped hole on pour mass, will after the bolt of M6 (Fig. 3) screw-in bolt head (Fig. 2), tighten, the bolt that is combined into M6 uses; If secondary place is M5 with inserts tapped hole on pour mass, the bolt of M5 is revolved after (Fig. 4) enters bolt head (Fig. 2) and tighten, form state as shown in Figure 1, now bolt positions by the part of the bolt head polished rod φ of portion 6, has prevented that secondary inserts position is offset.

Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, can also make a lot of forms, within these all belong to protection domain of the present utility model.

Claims (1)

1. a hinged bolt, comprises bolt head, it is characterized in that: described bolt head has a polished rod portion, and the end face of polished rod portion is provided with a screw-threaded counterbore;

Also include a body of bolt, one end of the body of bolt is the first external thread part, and the first external thread part is connected with screw-threaded counterbore, and the other end of the body of bolt is the second external thread part.