CN104454903B - A kind of new-type stop nut - Google Patents

Abstract

The invention discloses a novel anti-loosening nut, which comprises a nut body with threaded holes and two "L" shaped turning blocks; the bottom of the "I" part of the "L" shaped turning blocks has rounded corners ; There are multiple protrusions arrayed on the inner end surface of the "-" part of the "L"-shaped turn block; two horizontal grooves are symmetrically opened on the nut body; the horizontal groove communicates with the outside world; The vertical accommodation groove; the "I" part of each "L"-shaped turning block is accommodated in one accommodation groove; the width of the horizontal groove is greater than the width of the "L"-shaped turning block; the "I" of the "L"-shaped turning block The part can slide up and down in the receiving groove, and when it slides to the highest position, it can be turned down; the "-" part of the "L" shaped turning block includes a fixed block, a connecting block and a cylinder; the new locknut of the present invention does not use When it is used, it is no different from the commonly used nuts. It occupies a small space and is easy to carry and use. It can also be used as a general nut, and one nut can be used for multiple purposes.

Description

A new type of anti-loosening nut

technical field

The invention relates to a novel anti-loosening nut, in particular to a novel anti-loosening nut used on plates, and belongs to the technical field of mechanical fasteners.

Background technique

A nut is a nut, a part that is screwed together with a bolt or a screw for fastening, and is used to fasten and connect two mechanical parts with through holes. If the bolt is unscrewed from the nut, the two parts can be separated, so the connection is a detachable connection, and can also be widely used on plates. When the mechanical equipment is running, it will inevitably produce mechanical vibration. Long-term mechanical vibration will cause the nut to shake, lead to thread wear, and make the fastening effect worse, affecting the working performance and stability of the mechanical equipment, especially affecting some precision equipment. Machining accuracy, there may also be a phenomenon that the bolt escapes from the threaded hole of the nut, which may cause mechanical failure.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new type of locknut which usually takes up little space and can prevent the outer protrusions from being worn or damaged when used as a general nut.

In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a new anti-loosening nut, including a nut body, a threaded hole is opened in the nut body, and two "L" shaped turning blocks; the "L" The bottom of the "I" part of the shaped turning block is rounded; the inner end surface of the "-" part of the "L" shaped turning block is arrayed with a plurality of protrusions; the nut body is symmetrically opened with two horizontal grooves; the The horizontal groove communicates with the outside world; the nut body is also provided with a vertical accommodation groove communicating with each horizontal groove; the "I" part of each "L"-shaped turning block is accommodated in an accommodation groove; When the "I" part of the "L"-shaped turning block is accommodated in the receiving groove, the "-" part of the "L"-shaped turning block is located in the horizontal groove, and the "-" part of the "L"-shaped turning block The upper surface is flush with the upper surface of the nut body, and the outer surface of the "-" part of the "L"-shaped turning block faces the direction of the threaded hole; the width of the horizontal groove is greater than the width of the "L"-shaped turning block; the " The "I" part of the L-shaped turning block can slide up and down in the receiving groove; when the "I" part of the "L"-shaped turning block slides up to the highest position, it can be turned down; the "L"-shaped turning block The "I" part of the block is located in the horizontal groove, and the "-" part of the "L"-shaped turning block is parallel to the axis of the threaded hole; the "-" part of the "L"-shaped turning block includes a fixed block, a connecting block and the cylinder; the inner end surface of the fixed block is provided with a plurality of cylinders; the end of the telescopic rod of the cylinder is connected with the connecting block; the protrusion is arranged on the inner end surface of the connecting block; the lower surface of the nut body is provided with Control the switch of the cylinder.

Preferably, two ring-shaped sliding grooves are arranged in each containing groove; cylindrical sliding blocks are arranged on both sides of the "I" part of the "L"-shaped turning block; the sliding blocks slide in the sliding grooves , the "I" part of the "L"-shaped turning block slides up and down in the accommodation groove, and when it slides to the highest position, it can be turned down.

Preferably, there is a gap between the lower end of the protrusion and the bottom of the horizontal groove.

Preferably, there are two cylinders symmetrically.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

In the novel anti-loosening nut of the present invention, the protrusion will not touch the plate, avoiding the wear or damage of the protrusion, and the extension force of the cylinder can ensure the contact force and friction force between the protrusion and the surfaces on both sides, thereby ensuring the anti-loosening of the nut Performance; when not in use, it is no different from the usual nuts, takes up little space, is easy to carry and use, and can also be used as a general nut, one nut for multiple purposes.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the structural representation of novel locknut of the present invention;

Accompanying drawing 2 is another perspective structure schematic diagram of the novel anti-loosening nut of the present invention;

Accompanying drawing 3 is the use state schematic diagram of novel anti-loosening nut of the present invention;

Accompanying drawing 4 is the partial enlarged view of accompanying drawing 3;

Among them: 1. Nut body; 2. Threaded hole; 3. "L" shaped turning block; 4. Fillet; 5. Protrusion; 6. Horizontal groove; 7. Accommodating groove; ; 10, fixed block; 11, connecting block; 12, cylinder; 13, switch; 14, bolt; 15, plate.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

A new anti-loosening nut according to the present invention as shown in accompanying drawings 1 and 2 includes a nut body 1 with a threaded hole 2 inside and two "L" shaped turning blocks 3; The bottom of the "I" part of the "L"-shaped turning block 3 is a rounded corner 4; the inner end surface of the "-" part of the "L"-shaped turning block 3 is arrayed with a plurality of protrusions 5; the nut body 1 Two horizontal grooves 6 are symmetrically opened on the top; the horizontal groove 6 communicates with the outside world; the nut body 1 is also provided with a vertical receiving groove 7 communicating with each horizontal groove 6; each "L" shaped The "I" part of the turning block 3 is accommodated in a receiving groove 7; when the "I" part of the "L" shaped turning block 3 is accommodated in the receiving groove 7, the "-" of the "L" shaped turning block part is located in the horizontal groove 6, the upper surface of the "-" part of the "L"-shaped turning block 3 is flush with the upper surface of the nut body 1, and the outer surface of the "-" part of the "L"-shaped turning block 3 faces The direction of the threaded hole 2; the width of the horizontal groove 6 is greater than the width of the "L"-shaped turning block 3; the "I" part of the "L"-shaped turning block 3 can slide up and down in the receiving groove 7; the "L" When the "I" part of the "shaped turning block 3 slides up to the highest position, it can be turned down; the "I" part of the "L" shaped turning block 3 is located in the horizontal groove 6, and the "L" shaped turning block The "-" part of 3 is parallel to the axis of threaded hole 2; in the above structure, two ring-shaped sliding grooves 8 are arranged in each receiving groove 7; Both sides are provided with cylindrical sliders 9; said sliders 9 slide in the chute 8, and the "I" part of the "L" shaped turning block 3 slides up and down in the accommodating groove 7, and when it slides to the highest position, it can Flip down; the "-" part of the "L"-shaped turning block 3 includes a fixed block 10, a connecting block 11 and a cylinder 12; the inner end surface of the fixed block 10 is provided with a plurality of cylinders 12; The end of the rod is connected with the connection block 11; the protrusion 5 is arranged on the inner end surface of the connection block 11; the lower surface of the nut body 1 is provided with a switch 13 for controlling the cylinder 12; the lower end is raised due to the protrusion 5 There is a gap with the bottom of the horizontal groove 6, which can ensure that the protrusion 5 does not touch the bottom of the horizontal groove 6, and prevent the protrusion 5 from being worn.

As shown in accompanying drawings 3 and 4, a kind of elastic anti-loosening nut according to the present invention, when in use, after the screw rod of the bolt 14 is inserted into the plate 15, the two "L" shaped turning blocks 3 are pulled out and turned over, so that the "L" The "I" part of the "shaped turning block 3 is located in the horizontal groove 6, then the nut body 1 is screwed on the screw rod of the bolt 13, after tightening, the switch 13 is pressed, the cylinder 12 starts, and the telescopic rod of the cylinder 12 stretches out to drive The connecting block 11 moves toward the plate 14, so that the lower end of the protrusion 6 is in contact with the surface of both sides of the plate 14, which increases the friction force. When the mechanical equipment operates to generate mechanical vibration, the nut is not easy to shake, so that the thread It is not easy to wear, increases the fastening effect, improves the working performance and stability of mechanical equipment, especially ensures the processing accuracy of some precision equipment, and prevents the occurrence of bolts falling out of the threaded holes of nuts, improving the safety performance of mechanical equipment ;When the screw of the bolt is screwed on the nut body, there is a gap between the protrusion and the plate, which avoids the wear or damage of the protrusion due to contact with the plate, and at the same time, due to the extension force of the cylinder, the contact between the protrusion and the surfaces on both sides can be ensured The force and friction force ensure the anti-loosening performance of the nut; when the nut is not in use, the "I" part of the "L"-shaped turning block is accommodated in the receiving groove, and the "I" part of the "L"-shaped turning block is accommodated in the When it is in the receiving groove, the "–" part of the "L" shaped turning block is located in the horizontal groove, the outer surface of the "–" part of the "L" shaped turning block faces the direction of the threaded hole, and the "–" part of the "L" shaped turning block The upper surface is flush with the upper surface of the nut body, which is no different from the nuts commonly used at ordinary times. It occupies a small space and is easy to carry and use. It can also be used as an ordinary nut, and one nut can be used for multiple purposes.

For the above-mentioned novel anti-loosening nut, when two air cylinders are arranged symmetrically on each "L" shaped turning block, the extension force is the best, and the anti-loosening performance of the nut is also the best.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (4)

1. a new-type stop nut, including nut body, has screwed hole in described nut body, it is characterised in that: also include two " L " shape switch blocks；The bottom in " I " portion of described " L " shape switch block is fillet；" " portion inner face of described " L " shape switch block is gone into battle and is shown multiple projection；On described nut body, symmetry has two level troughs；Described level trough communicates with the external world；The vertical holding tank communicated with each level trough is also had on described nut body；" I " portion of described each " L " shape switch block is contained in a holding tank；When " I " portion of described " L " shape switch block is contained in holding tank, " " portion of described " L " shape switch block is positioned at level trough, " " portion upper surface of described " L " shape switch block and nut body upper surface flush, " " portion lateral surface of described " L " shape switch block is towards screwed hole direction；The width of described level trough is more than the width of " L " shape switch block；" I " portion of described " L " shape switch block can slide up and down in holding tank；When " I " portion of described " L " shape switch block slides up to extreme higher position, can downwardly turn over；" I " portion of described " L " shape switch block is positioned at level trough, and " " portion of described " L " shape switch block is parallel with the axis of screwed hole；" " portion of described " L " shape switch block includes fixed block, contiguous block and cylinder；Described fixed block inner face is provided with multiple cylinder；The expansion link end of described cylinder is connected with contiguous block；Described projection is arranged on the inner face of contiguous block；The lower surface of described nut body is provided with the switch controlling cylinder.

New-type stop nut the most according to claim 1, it is characterised in that: it is provided with two annular grooves in described each holding tank；The both sides in " I " portion of described " L " shape switch block are provided with cylindrical slider；Described slide block slides in chute, and " I " portion of " L " shape switch block slides up and down in holding tank, and when sliding into extreme higher position, can downwardly turn over.

New-type stop nut the most according to claim 2, it is characterised in that: gap is left bottom level trough in described protruding bottom.

4. according to the new-type stop nut one of claims 1 to 3 Suo Shu, it is characterised in that: described cylinder is arranged with two.