CN216742398U

CN216742398U - Pressure point type locking nut

Info

Publication number: CN216742398U
Application number: CN202123223177.2U
Authority: CN
Inventors: 严科
Original assignee: Changzhou Jiuhe Fastener Manufacturing Co ltd
Current assignee: Changzhou Jiuhe Fastener Manufacturing Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-14
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a pressure point formula lock nut, pressure point formula lock nut includes: nut body and flange seat, the nut body with flange seat integrated into one piece, nut body cross section is regular hexagon, the hole that has a perfect understanding is opened with the intermediate position of flange seat to the nut body, be provided with the internal thread on the pore wall of hole, nut body top evenly sets up a plurality of pressure points, the nut body evenly sets up the heterotypic groove of a plurality of UNICOM's holes and nut body surface with flange seat hookup location, flange seat bottom surface is close evenly to set up a plurality of pads feet along the position outward, and every central line that fills up the foot and the central line in a heterotypic groove and the axis of hole are all crossing. In this way, the utility model discloses increased the locking position of bolt, effectively improved lock nut's locking stability, prevented that the nut from using the pine of production to take off the problem under high-speed vibration environment.

Description

Pressure point type locking nut

Technical Field

The utility model relates to a connecting piece field especially relates to a pressure point formula lock nut.

Background

The nut is a common connecting piece, is matched with the bolt, is widely applied to various mechanical equipment and tool accessories, but in practical application, an installer is difficult to determine whether the nut is fastened in place, can not loosen after long-term use, and has higher requirement on the locking force between the bolt and the nut. At present, nuts of some pressure point locking nuts are arranged on the nut body to break locking threads at pressure change points, so that higher torque is provided, and the locking purpose is achieved.

Disclosure of Invention

The utility model discloses the main technical problem who solves provides a pressure point formula lock nut, can strengthen the stability of locking, prevents that the pine from taking off.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a pressure point lock nut, comprising: nut body and flange seat, the nut body with flange seat integrated into one piece, nut body cross section is regular hexagon, the hole that has a perfect understanding is opened with the intermediate position of flange seat to the nut body, be provided with the internal thread on the pore wall of hole, nut body top evenly sets up a plurality of pressure points, the nut body evenly sets up the heterotypic groove of a plurality of UNICOM's holes and nut body surface with flange seat hookup location, flange seat bottom surface is close evenly to set up a plurality of pads feet along the position outward, and every central line that fills up the foot and the central line in a heterotypic groove and the axis of hole are all crossing.

In a preferred embodiment of the present invention, the special-shaped groove is an inverted T-shaped groove.

In a preferred embodiment of the present invention, the bottom groove length of the T-shaped groove is not less than 2 times the height of the intermediate groove.

In a preferred embodiment of the present invention, the position of the special-shaped groove is on a center line of one face of the nut body.

In a preferred embodiment of the present invention, the number of the T-shaped grooves and the number of the pressure points are 3, and the T-shaped grooves and the pressure points are alternately arranged on the projection surface of the nut body.

In a preferred embodiment of the present invention, the bottom of the flange seat is further provided with friction lines.

The beneficial effects of the utility model are that: the utility model discloses an on current pressure point formula lock nut's basis, through applying the deformation force on the flange stack up to conduct the nut body bottom with the deformation force, make nut and bolted connection's internal thread produce certain deformation, thereby act on simultaneously with the pressure change point of the nut other end, block the bolt from both ends, thereby improve the moment and the stability of locking, effectively improve the nut after the locking to the resistance of vibration environment.

Drawings

Fig. 1 is a front view of a preferred embodiment of the present invention;

fig. 2 is a schematic top view of a preferred embodiment of the present invention;

FIG. 3 is a schematic bottom view of a preferred embodiment of the present invention;

the parts in the drawings are numbered as follows:

1. the nut comprises a nut body, 2 flange seats, 3 inner holes, 4 pressing points, 5T-shaped grooves and 6 foot pads.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 and 2, an embodiment of the present invention includes:

a pressure point lock nut, comprising: nut body 1 and flange seat 2, nut body 1 with 2 integrated into one piece of flange seat, nut body 1 is regular hexagon's hexagon nut for the cross section, nut body 1 is opened with flange seat 2's intermediate position has the hole 3 that link up, be provided with the internal thread on the pore wall of hole 3, 1 top of nut body evenly sets up 3 pressure points 4, nut body 1 evenly sets up the heterotypic groove of 3 UNICOM holes 3 and nut body 1 surface with 2 hookup locations of flange seat, the T-slot 5 of heterotypic groove for invering. The length of the bottom groove of the T-shaped groove 5 is 3 times of the height of the middle groove, and the proportion can reduce the resistance of stress deformation. The pressure points 4 and the T-shaped grooves 5 are alternately arranged in the middle of six surfaces of the hexagonal nut, and the distance between the center of each pressure point 4 and the center of the T-shaped groove 5 on the adjacent surface on the projection surface of the nut body 1 is equal. 2 bottom surfaces of flange seat are close evenly to set up 3 pads 6 along the position outward, and every central line that fills up 6 feet and the central line of a T type groove 5 and the axis of hole 3 all intersect, the thickness that fills up 6 feet is 3mm, and the deformation that fills up 6 feet and the flange seat that the working face extrusion leads to during mounting nut like this can directly conduct and arouse T type groove 5 base position screw thread deformation lock bolt on the base in 5 groove. The bottom of the flange seat 2 is also provided with friction lines, so that the friction force between the flange seat 2 and the working surface can be improved.

The working principle of the utility model is as follows:

when the nut is used for locking, the nut is screwed by a spanner, so that the friction grains at the bottom of the flange seat 2 can be attached to the mounting surface. At the moment, the pad foot 6 has a certain thickness, so that the flange surface is deformed, the deformation is conducted to the connecting position of the flange seat 2 and the nut body 1, the connecting position is provided with the inverted T-shaped groove 5, and the bottom edge of the T-shaped groove is easy to continuously turn over towards the inner hole 3 under the deformation effect due to the structural characteristics of the T-shaped groove 5, so that the bolt is locked from one end of the nut body 1, after the bolt is screwed down, a special pressure point tool is used for extruding the pressure point 4 at the other end of the nut body 1 to break the thread structure of the inner hole 3, and the bolt is locked from the other end of the nut body 1. Because 1 both ends of nut body are locked simultaneously, and the pressure point position distributes with the T-slot balancedly, so the locking moment of nut is big and stability is very high, even can still keep higher stability under abominable vibration environment, can not produce the pine problem of taking off.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressure point lock nut, comprising: nut body and flange seat, the nut body with flange seat integrated into one piece, nut body cross section is regular hexagon, the hole that has a perfect understanding is opened to the intermediate position of nut body and flange seat, be provided with the internal thread on the pore wall of hole, nut body top evenly sets up a plurality of pressure points, the nut body evenly sets up the heterotypic groove of a plurality of UNICOM holes and nut body surface with flange seat hookup location, flange seat bottom surface is close evenly to set up a plurality of pads feet along the position outward, and every central line of filling up the foot and the central line in a heterotypic groove and the axis of hole are all crossing.

2. The pressure point lock nut of claim 1 wherein the profiled groove is an inverted T-shaped groove.

3. The clinch nut of claim 2, wherein the bottom groove length of the T-shaped groove is no less than 2 times the height of the intermediate groove.

4. The compression point lock nut of claim 1 wherein said profiled groove is located on a centerline of a face of said nut body.

5. The pressure point type lock nut according to claim 2, wherein the number of the T-shaped grooves and the number of the pressure points are 3, and the T-shaped grooves and the pressure points are alternately arranged on the projection plane of the nut body.

6. The clinch nut of claim 1, wherein the flange seat is further provided with friction ridges on a bottom thereof.