CN206246470U

CN206246470U - A kind of locking fastener

Info

Publication number: CN206246470U
Application number: CN201621323465.1U
Authority: CN
Inventors: 许茜
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-05
Filing date: 2016-12-05
Publication date: 2017-06-13
Anticipated expiration: 2026-12-05

Abstract

The utility model discloses a kind of locking fastener, it is characterised in that：Including two adapter sleeves, a fixing pipe, a mobile bar and stopping means, adapter sleeve can be buckled on bolt head, each on six side walls of adapter sleeve to set a screw；The tubular structure that fixing pipe is closed in one end open, the other end, its blind end is stretched into the screw on the wall of adapter sleeve side, and stopping means is set on the wall of fixing pipe side；Mobile bar one end is stretched into fixing pipe, and the other end is stretched into the screw on another adapter sleeve side wall, and that end one side that mobile bar is stretched into fixing pipe sets the tooth at some intervals.The utility model assembles and disassembles strong adaptability, and can be slided in fixing pipe by mobile bar to adjust according to two spacing of bolt, easy to use；The utility model is effectively prevented two rotations of bolt for linking together, and the device stability is good, with auto-lock function.

Description

Anti-loosening fastening device

Technical Field

The utility model relates to a fastener field, specific locking fastener that says so.

Background

At present, in the machinery field, bolted connection is adopted in a lot of connection modes of parts, the part dismouting because of bolted connection is nimble, bolted connection obtains wide application in the machinery field, generally be bolt lug connection on equipment or nut cover on stud connection, but also have some defects, can make the bolt under the great condition of vibration or temperature variation, the nut is not hard up or the landing, and then make equipment operation unstable, influence normal production, cause property loss, have serious potential safety hazard, lead to the occurence of failure even, so need one kind can effectively prevent the bolt, the nut is not hard up or the fastener of landing urgently.

Disclosure of Invention

The utility model discloses to not enough among the prior art, the purpose provides one kind and installs and removes strong adaptability, can effectively prevent bolt or nut pivoted fastener.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

an anti-loosening fastening device is characterized in that: the bolt head fixing device comprises two fastening sleeves, a fixing pipe, a moving rod and a limiting device, wherein the fastening sleeves are of a hexagonal tubular structure matched with the shape of a bolt head, and a screw hole is formed in each of six side wall surfaces of each fastening sleeve; the fixing pipe is of a tubular structure with one open end and the other closed end, the closed end of the fixing pipe extends into a screw hole in one side wall of the fastening sleeve, a limiting device is arranged on one side wall of the fixing pipe and comprises a fixing sleeve, a screw, a spring and a baffle plate, the fixing sleeve is welded on the one side wall of the fixing pipe, the screw extends into the fixing sleeve and is in threaded connection with the fixing sleeve, the spring and the baffle plate are arranged in the fixing sleeve below the screw and are fixedly connected with the baffle plate, and the baffle plate is rectangular; in the carriage release lever one end stretched into fixed pipe open end, the carriage release lever other end stretched into the screw on another adapter sleeve lateral wall, the carriage release lever can slide in fixed intraductal, and a side of fixed pipe open end sets up a plurality of spaced teeth, and the tooth is the rectangle, and the tooth meshes with the baffle mutually, and the baffle is located the interval of adjacent tooth.

The movable rod and the fixed pipe are connected with the fastening sleeve in a threaded manner.

The utility model discloses the beneficial effect who has does:

compared with the prior art, if a bolt slightly rotates, the fastening sleeve buckled on the bolt rotates along with the bolt, the movable rod and the fixed pipe can be pulled or pressed to move relatively, the baffle is tightly clung to the movable rod due to the elastic force of the spring, the movable rod and the fixed pipe are prevented from moving relatively, and the teeth and the baffle are rectangular, the baffle can prevent the teeth from moving, the trend of the relative movement of the movable rod and the fixed pipe is prevented, the rotation of the fastening sleeve is prevented, and the rotation of the bolt slightly rotating can also be prevented, the utility model discloses effectively prevent the bolt from rotating, the device has good stability and self-locking function, when the bolt maintenance equipment needs to be disassembled, the bolt is unscrewed, the spring and the baffle can be taken out, the movable rod and the fixed pipe can be unscrewed along with the trend, each fastening sleeve is taken out, the bolt can be disassembled, the utility model discloses strong adaptability, and can slide in fixed pipe through the carriage release lever according to the interval of two bolts and adjust convenient to use.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the fixing bolt of the present invention;

fig. 3 is a perspective view of the fastening sleeve.

Detailed Description

In order to clearly understand the technical features, objects, effects and embodiments of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-3, an anti-loose fastening device comprises two fastening sleeves 1, a fixed tube 2, a movable rod 3 and a limiting device, wherein the fastening sleeves 1 are in a hexagonal tubular structure adapted to the shape of a bolt head, the fastening sleeves 1 can be buckled on the bolt head, and a screw hole 9 is respectively arranged on each of six side wall surfaces of the fastening sleeves 1; the fixing tube 2 is of a tubular structure with one open end and the other closed end, the closed end of the fixing tube extends into a screw hole 9 in one side wall of the fastening sleeve 1, a limiting device is arranged on one side wall of the fixing tube 2 and comprises a fixing sleeve 5, a screw 6, a spring 7 and a baffle plate 8, the fixing sleeve 5 is welded on one side wall of the fixing tube 2, the screw 6 extends into the fixing sleeve 5 and is in threaded connection with the fixing sleeve 5, the spring 7 and the baffle plate 8 are arranged in the fixing sleeve 5 below the screw 6, the spring 7 is fixedly connected with the baffle plate 8, and the baffle plate 8 is rectangular; 3 one ends of movable rod stretch into in the 2 open ends of fixed pipe, 3 other ends of movable rod stretch into in the screw 9 on another adapter sleeve 1 lateral wall, movable rod 3 can slide in fixed pipe 2, a side of the 2 open ends of fixed pipe sets up a plurality of spaced teeth 4, tooth 4 is the rectangle, tooth 4 meshes with baffle 8 mutually, baffle 8 is located the interval of adjacent tooth 4, movable rod 3 and fixed pipe 2 are threaded connection with adapter sleeve 1's connected mode.

The utility model is operated as follows,

tightening each bolt 10 on the equipment 11, buckling a fastening sleeve 1 on the bolt head of one bolt 10 on the equipment 11, pushing most of the movable rod 3 into the fixed pipe 2, and only leaving a small part exposed, wherein the closed end of the fixed pipe 2 is screwed into a screw hole 9 on one side wall of the fastening sleeve 1; then another fastening sleeve 1 is buckled on the bolt head of another bolt 10 on the equipment 11, the moving rod 3 is pulled outwards, the exposed end of the moving rod 3 is connected with a screw hole 9 on one side wall of the fastening sleeve 1 which is buckled on the rear buckle, the moving rod 3 is screwed into the screw hole 9 while being pulled, and thus, the distance between the two bolts 10 can be adjusted by sliding the moving rod 3 in the fixed pipe 2; after the movable rod 3 is fixed on the fastening sleeve 1, the spring 7 and the baffle plate 8 are fixedly connected together and are pressed into the fixing sleeve 5, so that the baffle plate 8 is positioned in the interval between the adjacent teeth 4; then the screw 6 presses the spring 7 to screw into the fixed sleeve 5 until screwing, at this time, the spring 7 is compressed, the elastic force thereof pushes against the baffle plate 8 to make the baffle plate 8 tightly contact with the movable rod 3, if a bolt 10 slightly rotates under the condition of large variation of load, impact, vibration or temperature, the fastening sleeve 1 buckled on the bolt 10 rotates along with the bolt, the bolt 3 and the fixed pipe 2 are pulled or pressed to do relative motion, the baffle plate 8 tightly contacts with the movable rod 3 under the elastic force of the spring 7, the friction force between the movable rod 3 and the fixed pipe 2 is large to prevent the movable rod 3 and the fixed pipe 2 from doing relative motion, because the teeth 4 and the baffle plate 8 are rectangular, the baffle plate 8 can prevent the teeth 4 from moving, the trend of relative motion between the movable rod 3 and the fixed pipe 2 is prevented, the generated force is prevented from acting on the fastening sleeve 1 which reversely rotates through the movable rod 3 and the fixed pipe 2, the rotation of adapter sleeve 1 receives the prevention, the rotation that takes place slight pivoted bolt 10 also can receive the prevention, the utility model discloses the effectual bolt 10 that has prevented rotates, the device stability is good, has self-locking function, also adopt above-mentioned way two liang of links together between other bolts 10, when bolt 10 maintenance of equipment is pulled down to needs, screw out screw 6, take out spring 7, baffle 8 can, like this, the relative motion can be done to carriage release lever 3 and fixed pipe 2, the carriage release lever 3 is screwed out in the same trend, fixed pipe 2 takes out each adapter sleeve 1, bolt 10 just can be in order to pull down, the utility model discloses install and remove strong adaptability, and can slide through carriage release lever 3 in fixed pipe 2 according to the interval of two bolts 10 and adjust convenient to use.

In the above scheme, the screw holes 9 are respectively formed in the six side wall surfaces of the fastening sleeve 1, so that when the fastening sleeve 1 is fastened on the bolt 10, the movable rod 3 or the fixed pipe 2 can be connected in all directions, and the application adaptability is improved.

Above-mentioned scheme is applicable to the nut cover on stud connection equipment, prevents that the nut from rotating the condition equally.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that equivalent changes, modifications and combinations can be made without departing from the spirit of the present invention, and shall fall within the protection scope of the present invention.

Claims

1. An anti-loosening fastening device is characterized in that: the bolt head fixing device comprises two fastening sleeves, a fixing pipe, a moving rod and a limiting device, wherein the fastening sleeves are of a hexagonal tubular structure matched with the shape of a bolt head, and a screw hole is formed in each of six side wall surfaces of each fastening sleeve; the fixing pipe is of a tubular structure with one open end and the other closed end, the closed end of the fixing pipe extends into a screw hole in one side wall of the fastening sleeve, a limiting device is arranged on one side wall of the fixing pipe and comprises a fixing sleeve, a screw, a spring and a baffle plate, the fixing sleeve is welded on the one side wall of the fixing pipe, the screw extends into the fixing sleeve and is in threaded connection with the fixing sleeve, the spring and the baffle plate are arranged in the fixing sleeve below the screw and are fixedly connected with the baffle plate, and the baffle plate is rectangular; in the carriage release lever one end stretched into fixed pipe open end, the carriage release lever other end stretched into the screw on another adapter sleeve lateral wall, and a side of fixed pipe open end sets up a plurality of spaced teeth, and the tooth is the rectangle, and the tooth meshes with the baffle mutually, and the baffle is located the interval of adjacent tooth.

2. A loose-proof fastening device as claimed in claim 1, characterized in that: the movable rod and the fixed pipe are connected with the fastening sleeve in a threaded manner.