CN203685821U

CN203685821U - Fastening and connecting structure for mechanical parts

Info

Publication number: CN203685821U
Application number: CN201320747859.XU
Authority: CN
Inventors: 汪涛
Original assignee: Yiwu Xiongfaer Mechanical Equipment Co Ltd
Current assignee: Yiwu Xiongfaer Mechanical Equipment Co Ltd
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-07-02
Anticipated expiration: 2023-11-25

Abstract

The utility model discloses a fastening and connecting structure for mechanical parts. The fastening and connecting structure comprises threaded fasteners for connecting the two mechanical parts, wherein the top ends of the threaded fasteners are connected with each other through a nut in a fastening way. The fastening and connecting structure is characterized in that a ring of small holes are formed on the upper surfaces of the mechanical parts, one side face of the nut is provided with a chute, the chute is internally provided with an insert pin, the insert pin is arranged corresponding to the radial directions of the small holes, and the bottom of the nut is provided with uniformly-arranged saw teeth; when the structure is used for fastening and connecting, the saw teeth at the bottom of the nut and the mechanical parts are in contact and pressed with each other by a screwing force, and the extruded saw teeth can be bent to further generate a resistance force since the hardness of the saw teeth is less than the surface hardness of the mechanical parts, so that the use of a backup ring can be avoided, the mechanical parts are hard to loose, and the loose of the nut can be avoided since the fastening and connecting structure and the small holes on the mechanical parts are positioned with one another via the insert pin. The fastening and connecting structure is simple in structure, low in manufacture cost, long in service life and free from usual maintenance.

Description

A kind of fastening connection structure for mechanical components

Technical field

The utility model relates to a kind of fastening connection structure for mechanical components.

Background technique

Generally in the time of mechanical connection, conventionally use nut and screw, nut need to use pad when fastening, prevents that nut loosening from causing the generation of contingency, though but use pad can play certain anti-loosening effect, but can not be fully effective, and use pad to increase cost of production.

Summary of the invention

Technical problem to be solved in the utility model be to provide a kind of simple in structure, cost is lower, fastening effective fastening connection structure for mechanical components.

The utility model is achieved through the following technical solutions: a kind of fastening connection structure for mechanical components, comprise the threaded fastener that connects two mechanical parts, described threaded fastener top connects by fastening nuts, on described mechanical parts upper surface, offer a circle aperture, described nut one side opening is provided with a chute, in described chute, be provided with a latch, the radially setting of described latch respective apertures.

As preferred technological scheme, described nut bottom is provided with the sawtooth of uniform arrangement.

As preferred technological scheme, described sawtooth is made up of metal iron plate.

The beneficial effects of the utility model are: the utility model is in the time that connection is fastening, utilize screwing force that the sawtooth of nut bottom is contacted and compressed with mechanical parts, because sawtooth hardness is not as good as machinery part surface hardness, therefore the sawtooth after being extruded produces bending, and then produce a resistivity, save the use of packing ring, and be not easy to become flexible, and utilize latch make with mechanical parts on aperture locate mutually, prevent nut loosening.The utility model is simple in structure, and cost of production is low, and long service life, without frequent maintenance.

Accompanying drawing explanation

For ease of explanation, the utility model is described in detail by following specific embodiment and accompanying drawing.

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of nut in the utility model;

Fig. 3 is the plan view of the utility model nut;

Fig. 4 is the structural representation of the utility model mechanical parts.

Embodiment

As depicted in figs. 1 and 2, a kind of fastening connection structure for mechanical components of the present utility model, comprise the threaded fastener 3 that connects two mechanical parts 2, described threaded fastener 3 tops are fastenedly connected by nut 1, on described mechanical parts 2 upper surfaces, offer a circle aperture 6, described nut 1 one side openings are provided with a chute, are provided with a latch 4 in described chute, the radially setting of described latch 4 respective apertures 6.

As shown in Figure 3, nut 1 bottom is provided with the sawtooth 5 of uniform arrangement, because sawtooth 5 is made up of metal iron plate, in the time that connection is fastening, utilize screwing force that the sawtooth of nut bottom is contacted and compressed with mechanical parts, because sawtooth hardness is not as good as machinery part surface hardness, the sawtooth after being therefore extruded produces bending, and then a resistivity of generation, the use of having saved packing ring.

As shown in Figure 2 and Figure 4, install when fastening, utilize latch 4 make with mechanical parts 2 on aperture 6 locate mutually, prevent nut loosening.

The beneficial effects of the utility model are: the utility model is simple in structure, and cost of production is low, and long service life, without frequent maintenance.

The above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. a fastening connection structure for mechanical components, comprise the threaded fastener that connects two mechanical parts, described threaded fastener top connects by fastening nuts, it is characterized in that: on described mechanical parts upper surface, offer a circle aperture, described nut one side opening is provided with a chute, in described chute, be provided with a latch, the radially setting of described latch respective apertures.

2. fastening connection structure for mechanical components according to claim 1, is characterized in that: described nut bottom is provided with the sawtooth of uniform arrangement.

3. fastening connection structure for mechanical components according to claim 2, is characterized in that: described sawtooth is made up of metal iron plate.