Detachable self-locking anti-theft nut
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of nuts, in particular to the technical field of detachable self-locking anti-theft nuts.
[ background of the invention ]
The working principle of the nut is that the nut and the bolt are self-locked by friction force. But the reliability of such self-locking is reduced in dynamic loads. In some important occasions, some anti-loosening measures can be taken to ensure the locking reliability of the nut. The application of the fastener is extensive, and many fasteners are in heavy load, the operational environment of vibration, and the condition that easily appears loosening, once the fastener of some position appears loosening, probably causes serious accident or even endangers life. In the prior art, the nylon sleeve locking type locknut plays a self-locking and anti-loosening role by utilizing the nylon sleeve embedded at the upper end of the nut, the nut cannot ensure the anti-loosening reliability after being disassembled and assembled for many times, and a new nut needs to be replaced again, so that the use cost is increased.
In addition, in the prior art, the anti-theft nut has a complex structure and cannot be used repeatedly.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a detachable self-locking type anti-theft nut which can reduce the use cost, has a simple structure and can be used repeatedly.
In order to achieve the purpose, the invention provides a detachable self-locking anti-theft nut which comprises a nut main body, an annular seat, a retaining mechanism, a flange pad, a nut body, two bolts and two spherical grooves, wherein the front end of the nut main body is provided with the flange pad, the rear end of the nut main body is provided with the annular seat, the annular seat is internally provided with the detachable retaining mechanism, the retaining mechanism comprises a nylon sleeve, a plurality of inserting bodies, a fixed seat, a step hole and a plurality of inserting grooves, the fixed seat is detachably arranged in the annular seat, the fixed seat is provided with the step hole, the side wall of a large-hole-diameter section of the step hole is provided with the inserting grooves which are uniformly distributed, the nylon sleeve is positioned in the large-hole-diameter section of the step hole, the outer ring surface of the nylon sleeve is provided with the inserting bodies which correspond to the inserting grooves one to one another and are matched with the inserting grooves, and be equipped with on the outer peripheral face with nut body matched with external screw thread, the front end upper portion and the lower part of nut main part all are equipped with the connecting seat, the rear end of connecting seat all is equipped with spherical recess, nut body thread connection cover is established in the nut main part, wear to be equipped with threaded connection's bolt on the nut body, two bolts respectively with two spherical recess one-to-one, the front end and the spherical recess of the screw body of bolt cooperate.
Preferably, the nut further comprises a protective sleeve, and the protective sleeve can be sleeved on the nut body.
Preferably, the outer peripheral surface of the fixing seat is provided with two uniformly distributed shaft bodies, the shaft bodies are sleeved with fixing bodies, the cross sections of the fixing bodies are in an oval shape, and the rear ends of the annular seats are provided with fixing grooves matched with the fixing bodies.
Preferably, the fixing groove is formed of an inlet lateral groove opened rearward and a circular groove communicating with a front end of the inlet lateral groove.
Preferably, the width dimension of the inlet lateral groove is equal to the minor axis dimension of the fixed body, and the diameter dimension of the circular groove is equal to the major axis dimension of the fixed body.
Preferably, the front end of the fixed seat is provided with an annular rubber pad pressed on the nut body.
Preferably, the outer end of the fixing body is provided with a projection.
Preferably, the outer end of the shaft body is provided with a blocking step.
Preferably, the front end of the nut main body is provided with an annular groove, the rear end of the flange pad is provided with an annular connector matched with the annular groove, and the rear end of the annular connector is coated with a graphite layer.
The invention has the beneficial effects that: according to the invention, the fixed seat is detachably arranged in the annular seat, the fixed seat is provided with the step hole, the side wall of the large-aperture section of the step hole is provided with the uniformly distributed inserting grooves, the nylon sleeve is positioned in the large-aperture section of the step hole, and the outer ring surface of the nylon sleeve is provided with the inserting bodies which are in one-to-one correspondence with the inserting grooves and are matched with the inserting grooves, so that the nylon sleeve can be replaced, and the use cost is reduced; the front end of the nut main body is provided with an annular groove, the rear end of the flange pad is provided with an annular connector matched with the annular groove, and the rear end of the annular connector is coated with a graphite layer; the friction force between the flange pad and the fastened piece is far larger than that between the flange pad and the nut main body, the flange pad is not easy to rotate along with the nut main body in the final screwing stage, the damage to the surface of the fastened piece caused by the rotation of the flange pad is avoided, and the flange pads with different diameters can be selected as required; the nut body is screwed to drive the bolt to rotate, the bolt drives the nut body to rotate through the connecting seat, screwing or unscrewing of the nut body is achieved, after the nut body is screwed, the nut body is integrally dismounted together with the bolt, and at the moment, the nut body cannot be dismounted through an existing dismounting tool.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a detachable self-locking anti-theft nut of the present invention;
fig. 2 is a partial side view of a detachable self-locking antitheft nut of the present invention.
In the figure: the nut comprises a nut body 1, a ring seat 2, a backstop mechanism 3, a flange pad 4, a ring groove 5, a ring connector 6, a nut body 7, a bolt 8, a spherical groove 9, a connecting seat 10, a protective sleeve 11, a nylon sleeve 31, a nylon connector 32, a fixed seat 33, a stepped hole 34, a plug groove 35, a shaft body 36, a fixed body 37, a fixed groove 38, a ring rubber pad 39, a bulge 310, a barrier step 311, an inlet cross groove 381 and a circular groove 382.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the detachable self-locking anti-theft nut of the invention comprises a nut main body 1, an annular seat 2, a retaining mechanism 3, a flange pad 4, a nut body 7, two bolts 8 and two spherical grooves 9, wherein the front end of the nut main body 1 is provided with the flange pad 4, the rear end of the nut main body 1 is provided with the annular seat 2, the annular seat 2 is internally provided with the detachable retaining mechanism 3, the retaining mechanism 3 comprises a nylon sleeve 31, a plurality of inserting bodies 32, a fixed seat 33, a step hole 34 and a plurality of inserting grooves 35, the fixed seat 33 is detachably arranged in the annular seat 2, the fixed seat 33 is provided with the step hole 34, the side wall of the large-hole diameter section of the step hole 34 is provided with the inserting grooves 35 which are uniformly distributed, the nylon sleeve 31 is positioned in the large-hole section of the step hole 34, the outer ring surface of the nylon sleeve 31 is provided with the inserting bodies 32 which are in one-to-one correspondence and, the cross section of the nut main body 1 is in a ring shape, external threads matched with the nut body 7 are arranged on the outer peripheral surface of the nut main body 1, connecting seats 10 are arranged on the upper portion and the lower portion of the front end of the nut main body 1, spherical grooves 9 are arranged at the rear end of each connecting seat 10, the nut body 7 is connected with the nut main body 1 in a threaded connection mode, bolts 8 in threaded connection penetrate through the nut body 7, the two bolts 8 correspond to the two spherical grooves 9 one by one respectively, the front end of a bolt body of each bolt 8 is matched with the spherical grooves 9, the nut main body further comprises a protecting sleeve 11, the protecting sleeve 11 can be sleeved on the nut body 7, two shaft bodies 36 which are uniformly distributed are arranged on the outer peripheral surface of the fixing seat 33, fixing bodies 37 are sleeved on the shaft bodies 36, the cross sections of the fixing bodies 37 are in an oval shape, and fixing grooves 38 matched with the fixing, the fixed slot 38 comprises the horizontal groove 381 of entry that the opening is towards the back and the circular groove 382 of the front end intercommunication with the horizontal groove 381 of entry, the width dimension of the horizontal groove 381 of entry equals with the minor axis size of the fixed body 37, the diameter dimension of circular groove 382 equals with the major axis size of the fixed body 37, the front end of fixing base 33 is equipped with the annular rubber pad 39 that compresses tightly on nut main body 1, the outer end of the fixed body 37 is equipped with protruding 310, the outer end of axis body 36 is equipped with and blocks step 311, the front end of nut main body 1 is equipped with annular groove 5, the rear end of flange pad 4 is equipped with the annular connector 6 with annular groove 5 matched with, the rear end coating of annular connector 6 has the graphite layer.
The working process of the invention is as follows:
in the working process of the detachable self-locking anti-theft nut, when the nylon sleeve 31 needs to be replaced, the fixing body 37 is rotated by 90 degrees to enable the long axis of the fixing body 37 to be in a horizontal state, then the fixing base 33 is pulled backwards to be detached, then the nylon sleeve 31 in the stepped hole 34 is taken out and placed into a new nylon sleeve 31, then the fixing base 33 is placed into the annular base 2, in the process, the fixing body 37 enters the circular groove 382 through the inlet transverse groove 381, and then the fixing body 37 is rotated by 90 degrees to enable the long axis of the fixing body 37 to be in a vertical state.
Clockwise or anticlockwise twist nut body 7 and drive bolt 8 and rotate, bolt 8 drives nut main part 1 through connecting seat 10 and rotates, realizes screwing up or the pine of nut main part 1, treats that nut main part 1 screws up the completion after, unloads nut body 7 together with bolt 8 is whole, at this moment, adopts current extracting tool can't dismantle nut main part 1, then overlaps the lag 11 cover on nut main part 1.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.