CN209294209U - A kind of automobile lock screw - Google Patents

Abstract

The utility model discloses a kind of automobile lock screws, including No.1 screw head, No.1 screw head surface lower end, which is equipped with, adjusts side, No.1 screw head lower end is fixedly connected with No.1 bolt, the No.1 bolt surface is equipped with No.1 screw thread, No.1 bolt surface lower end is equipped with expansion hatch, expansion adjusting cavity is equipped with inside the No.1 bolt, the No.1 screw head upper end face is equipped with mounting hole, No. two screw heads are equipped with inside the mounting hole, No. two screw head upper end faces, which are equipped with, adjusts the edge of a knife, No. two screw head lower ends are fixedly connected with No. two bolts, No. two bolt surfaces are equipped with No. two screw threads.The utility model structure is simple, easy to use, novel in design, defines the position of automobile lock screw, to prevent automobile from locking loosened screw, link position is fixed reliable, and use scope is wider, and security performance is higher.

Description

A kind of automobile lock screw

Technical field

The utility model relates to fastening parts of automobiles technical field, in particular to a kind of automobile lock screw.

Background technique

Since the 21th century, due to international resource and energy shortages, lightweight, intensive, energy-saving are futures The important developing direction of the vehicles such as automobile.Therefore, assembling in vehicles such as automobiles certainly will pursue more in indispensable bolt-connection Add reasonable tightening technology.

Screw thread is pre-machined out on fastener or uses nut for general bolt fastening needs, and self tapping locking screw Nail, threaded portion cross section are that trigone is round, form of thread with it is commonly identical, but its effective diameter is big compared with regular screw threads, matches With the tapered guiding portion of screw front end, screw, can be prefabricated in the body with plastic deformation ability in a manner of common be screwed into Internal screw thread is squeezed out on unthreaded hole, so that realizing has the connection of interference, such existing locking functions of screw, and can be removed from pre- on body The program of screw hole processed is all good new varieties of technology, economy.

But existing lock screw is often led because of the vibration generated in vehicle travel process after being installed Loosened screw is caused, so that just to be fastened within using the regular hour.For this purpose, it is proposed that a kind of automobile lock screw.

Utility model content

The main purpose of the utility model is to provide a kind of automobile lock screws, can effectively solve in background technique Problem.

To achieve the above object, the technical solution that the utility model is taken are as follows:

A kind of automobile lock screw, including No.1 screw head, No.1 screw head surface lower end, which is equipped with, adjusts side, the No.1 Screw head lower end is fixedly connected with No.1 bolt, and the No.1 bolt surface is equipped with No.1 screw thread, No.1 bolt surface lower end Expansion adjusting cavity is equipped with equipped with expansion hatch, inside the No.1 bolt, the No.1 screw head upper end face is equipped with mounting hole, described No. two screw heads are equipped with inside mounting hole, No. two screw head upper end faces, which are equipped with, adjusts the edge of a knife, and No. two screw head lower ends are fixed No. two bolts are connected with, No. two bolt surfaces are equipped with No. two screw threads.

Further, the expansion adjusts chamber inner sidewall and is provided with internal screw thread.

Further, the expansion adjusting cavity lower end gradually becomes smaller, and No. two bolt lower ends become larger.

Further, No. two screw heads are located inside the mounting hole of No.1 screw head upper end, and spiral connects.

Further, the No.1 bolt and No. two screw heads pass through mounting hole, expansion adjusting cavity and expansion adjusting cavity inside The internal screw thread spiral connection of wall setting.

Compared with prior art, the utility model has the following beneficial effects:

1. the utility model passes through two fastening screws being equipped with, and by No.1 bolt and No. two screw heads by mounting hole, Expansion adjusting cavity is connected with the internal screw thread spiral that expansion adjusts chamber inner sidewall setting, so that fastening No.1 spiral shell first during installation Bolt is gradually become smaller, No. two again by No. two bolt fastenings inside No.1 bolt after the completion of fastening by that will expand adjusting cavity lower end Bolt lower end becomes larger, so that No. two bolt fastenings carry out expansion expansion behind No.1 bolt inside, avoids screw in length The problem of being loosened after time use；

2. the utility model structure is simple, easy to use, novel in design, the position of automobile lock screw is defined, thus Prevent automobile from locking loosened screw, link position is fixed reliable, and use scope is wider, and security performance is higher.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model automobile lock screw.

Fig. 2 is the schematic diagram of internal structure of the utility model automobile lock screw.

In figure: 1, No.1 screw head；2, side is adjusted；3, No.1 bolt；4, No.1 screw thread；5, expansion hatch；6, mounting hole；7, two Number screw head；8, the edge of a knife is adjusted；9, No. two bolts；10, No. two screw threads；11, adjusting cavity is expanded.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

As shown in Figs. 1-2, a kind of automobile lock screw, including No.1 screw head 1, the 1 surface lower end of No.1 screw head are equipped with Side 2 is adjusted, 1 lower end of No.1 screw head is fixedly connected with No.1 bolt 3, and 3 surface of No.1 bolt is equipped with No.1 screw thread 4, The 3 surface lower end of No.1 bolt is equipped with expansion hatch 5, and expansion adjusting cavity 11, the No.1 spiral shell are equipped with inside the No.1 bolt 3 First 1 upper end face is equipped with mounting hole 6, is equipped with No. two screw heads 7 inside the mounting hole 6,7 upper end face of No. two screw heads is equipped with The edge of a knife 8 is adjusted, 7 lower end of No. two screw heads is fixedly connected with No. two bolts 9, and 9 surface of No. two bolts is equipped with No. two screw threads 10。

Wherein, 11 inner sidewall of expansion adjusting cavity is provided with internal screw thread.

As shown in Figure 1, No.1 bolt 3 and No. two screw heads 7 is facilitated to be attached.

Wherein, 11 lower end of expansion adjusting cavity gradually becomes smaller, and 9 lower end of No. two bolts becomes larger.

As shown in Fig. 2, carrying out expansion expansion after making No. two bolts 7 be fastened on 3 inside of No.1 bolt, avoids screw and exist The problem of being loosened after long-time use.

Wherein, No. two screw heads 7 are located inside the mounting hole 6 of 1 upper end of No.1 screw head, and spiral connects.

As shown in Fig. 2, it is more smooth after mounting, the installation of other parts will not be interfered.

Wherein, the No.1 bolt 3 and No. two screw heads 7 pass through in mounting hole 6, expansion adjusting cavity 11 and expansion adjusting cavity 11 The internal screw thread spiral connection of side wall setting.

As shown in Fig. 2, to fasten No.1 bolt 3 first during installation, No. two bolts 7 are fastened on again after the completion of fastening Inside No.1 bolt 3.

It should be noted that the utility model is a kind of automobile lock screw, including 1, No.1 screw head；2, side is adjusted；3, No.1 bolt；4, No.1 screw thread；5, expansion hatch；6, mounting hole；7, No. two screw heads；8, the edge of a knife is adjusted；9, No. two bolts；10, two Number screw thread；11, adjusting cavity is expanded, component is universal standard part or component as known to those skilled in the art, structure and original Reason all can be learnt by technical manual or be known by routine experiment method for this technology personnel, when work, pass through what is be equipped with Two fastening screws, and No.1 bolt 3 and No. two screw heads 7 are passed through in mounting hole 6, expansion adjusting cavity 11 and expansion adjusting cavity 11 The internal screw thread spiral connection of side wall setting, so that No.1 bolt 3 is fastened first during installation, again by No. two bolts after the completion of fastening 7 are fastened on inside No.1 bolt 3, are gradually become smaller by that will expand 11 lower end of adjusting cavity, and No. two 7 lower ends of bolt become larger, and make No. two bolts 7 be fastened on 3 inside of No.1 bolt after carry out expansion expansion, avoid that screw loosens after prolonged use asks Topic；Structure is simple, easy to use, novel in design, defines the position of automobile lock screw, to prevent automobile from locking screw worked itself loose Dynamic, link position is fixed reliable, and use scope is wider, and security performance is higher.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (5)

1. a kind of automobile lock screw, including No.1 screw head (1), it is characterised in that: No.1 screw head (1) the surface lower end is equipped with It adjusts side (2), No.1 screw head (1) lower end is fixedly connected with No.1 bolt (3), and No.1 bolt (3) surface is equipped with one Number screw thread (4), No.1 bolt (3) the surface lower end are equipped with expansion hatch (5), and expansion is equipped with inside the No.1 bolt (3) and is adjusted It saves chamber (11), No.1 screw head (1) upper end face is equipped with mounting hole (6), and No. two screw heads are equipped with inside the mounting hole (6) (7), No. two screw heads (7) upper end face, which is equipped with, adjusts the edge of a knife (8), and No. two screw heads (7) lower end is fixedly connected with No. two Bolt (9), No. two bolts (9) surface are equipped with No. two screw threads (10).

2. a kind of automobile lock screw according to claim 1, it is characterised in that: expansion adjusting cavity (11) inner sidewall It is provided with internal screw thread.

3. a kind of automobile lock screw according to claim 1, it is characterised in that: the expansion adjusting cavity (11) lower end by Gradual change is small, and No. two bolts (9) lower end becomes larger.

4. a kind of automobile lock screw according to claim 1, it is characterised in that: No. two screw heads (7) are located at No.1 The mounting hole (6) of screw head (1) upper end is internal, and spiral connects.

5. a kind of automobile lock screw according to claim 1, it is characterised in that: the No.1 bolt (3) and No. two spiral shells Head (7) is connected by mounting hole (6), expansion adjusting cavity (11) with the internal screw thread spiral for expanding the setting of adjusting cavity (11) inner sidewall.