CN212672200U

CN212672200U - Check bolt assembly

Info

Publication number: CN212672200U
Application number: CN202020812988.2U
Authority: CN
Inventors: 潘李林; 王宏桥; 李庆霞
Original assignee: BEIJING BEINEI ENGINE PARTS CO LTD
Current assignee: BEIJING BEINEI ENGINE PARTS CO LTD
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-09
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a check bolt subassembly relates to bolt technical field. The utility model discloses a shank of bolt, nut and locking subassembly, the circular slot has been seted up to the bottom of shank of bolt, the tank bottom fixed mounting of circular slot has the screw thread post, one side of nut is the cyclic annular a plurality of draw-in grooves of having seted up, locking subassembly includes mounting plate and annular plate, the upper surface of mounting plate is seted up flutedly, and the bottom surface of mounting plate is fixed to be link up there is a screw thread section of thick bamboo, a plurality of spouts have been seted up to the upper surface of mounting plate is the cyclic annular, the upper surface rigid coupling of slide has the cardboard, the groove of stepping down has all been seted up to the position department of the week side of mounting plate corresponding spout, one side rigid coupling of slide has the connecting rod, a plurality of springs of rigid coupling between. The utility model discloses a set up screw thread post and locking subassembly for the position of nut is restricted, has avoided not hard up of nut.

Description

Check bolt assembly

Technical Field

The utility model belongs to the technical field of the bolt, especially, relate to a locking bolt subassembly.

Background

The bolt is a common mechanical part, a cylindrical threaded fastener matched with the nut, a fastener composed of a head part and a screw rod needs to be matched with the nut and is used for tightly connecting two parts with through holes, the nut and the bolt are connected in a rigid manner, when the connecting structure is in vibration with certain amplitude and certain frequency, the connecting structure can resonate, and vibration frequencies of the connecting pieces in the connecting structure are possibly different, so that vibration frequency differences exist among the connecting pieces, certain displacement can be generated by the connecting pieces in the connecting structure, the loosening of the connecting structure is caused, namely the connection between the nut and the bolt becomes loose.

At present, people usually arrange a metal elastic bulge or an elastic gasket on one side of a nut, and the structure of the metal elastic bulge or the elastic gasket has certain deformability to increase friction so as to enhance the vibration resistance of the nut and a bolt, but the phenomenon of nut loosening and displacement is not fundamentally solved.

Therefore, the utility model designs a check bolt subassembly to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking bolt subassembly through setting up screw thread post and locking subassembly for the position of nut is limited, has avoided not hard up of nut, has solved current bolt and has used for a long time down, and the problem that the nut becomes loose with being connected of bolt is solved.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a locking bolt assembly, which comprises a bolt rod and a nut, wherein the top end of the bolt rod is fixedly connected with a bolt head, and the locking bolt assembly also comprises a circular groove arranged at the bottom end of the bolt rod, a threaded column is fixedly arranged at the bottom of the circular groove, and a plurality of clamping grooves are annularly arranged on one side of the nut; the anti-loosening assembly comprises a fastening plate and an annular plate, wherein a groove is formed in the upper surface of the fastening plate, a threaded cylinder is fixedly penetrated through the bottom surface of the fastening plate, a plurality of sliding grooves are formed in the upper surface of the fastening plate in an annular shape, a plurality of sliding plates are in sliding fit in the sliding grooves, clamping plates are fixedly connected to the upper surface of each sliding plate, abdicating grooves are formed in the positions, corresponding to the sliding grooves, of the peripheral side of the fastening plate, a connecting rod is fixedly connected to one side of each sliding plate, one end of each connecting rod is fixedly connected with the annular plate, and a plurality of springs are fixedly connected between each sliding plate and; the thread cylinder is matched with the thread column, and the thread groove on the thread column is opposite to the thread groove on the bolt rod in direction.

Furthermore, the clamping plate is located inside the clamping groove, and the cross section of the clamping plate is isosceles trapezoid.

Further, the connecting rod is located the inside of groove of stepping down and with the groove sliding fit of stepping down.

Further, the thread cylinder is located inside the circular groove and is in clearance fit with the circular groove.

Further, the bottom end of the bolt rod is located inside the groove, the groove is in clearance fit, and the rotation direction of the fastening plate during installation is opposite to that of the nut during installation.

The utility model discloses following beneficial effect has: the utility model discloses a set up screw thread post and locking subassembly, at the bolt post, after the assembly is accomplished between nut and the mounting plate, the cardboard slides in the inside at the draw-in groove under the effect of spring, realize the fixed to nut and mounting plate, because the thread groove on the screw thread post is opposite with the thread groove on the threaded rod direction, consequently when the nut is not hard up, not hard up nut can drive the mounting plate and rotate, the mounting plate drives a screw thread section of thick bamboo and impels to bolt head one side forward on the threaded rod, the mounting plate upwards promotes the nut, and then the not hard up of nut has been restricted, the position with the nut is restricted, the not hard up of nut has been avoided.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a check bolt assembly;

FIG. 2 is a schematic structural view of FIG. 1, disassembled;

FIG. 3 is a cross-sectional view of a bolt shaft and bolt head;

FIG. 4 is a schematic structural view of a nut;

FIG. 5 is a schematic structural view of the anti-loosening assembly;

FIG. 6 is a cross-sectional view of the fastening plate;

in the drawings, the components represented by the respective reference numerals are listed below:

1-bolt bar, 2-bolt head, 3-nut, 4-anti-loose component, 5-thread cylinder, 6-annular plate, 7-abdicating groove, 8-round groove, 9-thread column, 10-clamping groove, 11-sliding groove, 12-connecting bar, 13-sliding plate, 14-clamping plate, 15-spring, 16-fastening plate, 17-groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention relates to a lock bolt assembly, including a bolt bar 1 and a nut 3, wherein a bolt head 2 is fixed to the top end of the bolt bar 1, which is characterized in that: the locking device also comprises a locking assembly 4, wherein a round groove 8 is formed at the bottom end of the bolt rod 1, a threaded column 9 is fixedly installed at the bottom of the round groove 8, and a plurality of clamping grooves 10 are annularly formed in one side of the nut 3;

the anti-loosening assembly 4 comprises a fastening plate 16 and a ring-shaped plate 6, a groove 17 is formed in the upper surface of the fastening plate 16, a threaded cylinder 5 is fixedly penetrated through the bottom surface of the fastening plate 16, a plurality of sliding grooves 11 are formed in the upper surface of the fastening plate 16 in an annular shape, a plurality of sliding plates 13 are in sliding fit with the inner portions of the sliding grooves 11, clamping plates 14 are fixedly connected to the upper surfaces of the sliding plates 13, abdicating grooves 7 are formed in positions, corresponding to the sliding grooves 11, of the peripheral side surfaces of the fastening plate 16, a connecting rod 12 is fixedly connected to one side of each sliding plate 13, one end of each connecting rod 12 is fixedly connected with the ring-shaped plate 6;

the threaded cylinder 5 is matched with a threaded column 9, and a thread groove on the threaded column 9 is opposite to a thread groove on the bolt rod 1.

As shown in fig. 4 and 5, the clamping plate 14 is located inside the clamping groove 10, the cross section of the clamping plate 14 is isosceles trapezoid, and the connecting rod 12 is located inside the abdicating groove 7 and is in sliding fit with the abdicating groove 7.

As shown in fig. 6, the threaded cylinder 5 is located inside the circular groove 8 and is in clearance fit with the circular groove 8, and the threaded cylinder 5 extends into the circular groove 8.

As shown in fig. 5, the bottom end of the bolt rod 1 is located inside the groove 17, the groove 17 is in clearance fit, the fastening plate 16 is installed in a rotation direction opposite to that of the nut 3, and the bolt rod 1 can enter the inside of the groove 17.

One specific application of this embodiment is: after the nut 3 is in threaded fit with the threaded rod 1, the threaded cylinder 5 on the fastening plate 16 is in threaded connection with the threaded column 9, the annular plate 6 is pressed downwards, the sliding plate 13 slides in the sliding groove 11, the spring 15 is extruded, the clamping plate 14 slides into the sliding groove 11, the fastening plate 16 rotates towards one side of the nut 3 along with the screwing of the threaded cylinder 5 on the threaded column 9, when the end surface of the fastening plate 16 is in tight contact with the end surface of the nut 3, the force applied on the annular plate 6 is removed, the clamping plate 14 pushes the sliding plate 13 outwards under the action of the spring 15, the clamping plate 14 slides into the clamping groove 10 to realize the fixed connection of the nut 3 and the fastening plate 16, because the thread groove on the threaded column 9 is opposite to the thread groove on the threaded rod 1, when the nut 3 is loosened, the loosened nut 3 can drive the fastening plate 16 to rotate, the fastening plate 16 drives the threaded cylinder 5 to forwardly push towards the bolt head 2 side on the threaded rod 1, the fastening plate 16 pushes the nut 3 upward, thereby restricting the loosening of the nut 3, restricting the position of the nut 3, and preventing the loosening of the nut 3.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a check bolt subassembly, includes shank of bolt (1) and nut (3), the top rigid coupling of shank of bolt (1) has bolt head (2), its characterized in that: the bolt comprises a bolt rod (1) and is characterized by further comprising an anti-loosening assembly (4), wherein a circular groove (8) is formed in the bottom end of the bolt rod (1), a threaded column (9) is fixedly installed at the bottom of the circular groove (8), and a plurality of clamping grooves (10) are formed in one side of the nut (3) in an annular shape;

the anti-loosening assembly (4) comprises a fastening plate (16) and a ring-shaped plate (6), a groove (17) is formed in the upper surface of the fastening plate (16), a threaded cylinder (5) is fixedly penetrated through the bottom surface of the fastening plate (16), a plurality of sliding grooves (11) are formed in the upper surface of the fastening plate (16) in an annular mode, a plurality of sliding plates (13) are arranged in the sliding grooves (11) in a sliding fit mode, clamping plates (14) are fixedly connected to the upper surface of the sliding plates (13), abdicating grooves (7) are formed in positions, corresponding to the sliding grooves (11), of the circumferential sides of the fastening plate (16), a connecting rod (12) is fixedly connected to one side of the sliding plate (13), one end of the connecting rod (12) is fixedly connected with the ring-shaped plate (6), and a plurality of springs (15) are fixedly connected between the sliding plates (;

the thread cylinder (5) is matched with the thread column (9), and the thread groove on the thread column (9) is opposite to the thread groove on the bolt rod (1).

2. A lock bolt assembly as claimed in claim 1, characterised in that the catch plate (14) is located within the catch slot (10), the catch plate (14) being isosceles trapezoidal in cross-section.

3. A lock bolt assembly according to claim 1, characterised in that the connecting rod (12) is located inside the relief groove (7) and is in sliding fit with the relief groove (7).

4. A lock bolt assembly according to claim 1, characterised in that the threaded cylinder (5) is located inside the circular groove (8) and is clearance fitted to the circular groove (8).

5. A lock bolt assembly according to claim 1, characterised in that the bottom end of the bolt shank (1) is located inside the recess (17) and the recess (17) is a clearance fit, the tightening plate (16) being mounted in a rotational direction opposite to the rotational direction of the nut (3).