CN219570564U - Lock nut - Google Patents

Abstract

The utility model relates to the technical field of locknuts and discloses a locknut, which comprises a nut mechanism and a lockmechanism, wherein the nut mechanism comprises a fastening nut and a conical screw seat, the conical screw seat is fixedly arranged at the bottom of the fastening nut, the lockmechanism comprises a pressed base, the top of the pressed base is fixedly provided with a pressed groove seat, the outer side of the conical screw seat is in extrusion contact with the inner side of the conical pressing groove, the locknut is arranged at the bottom of the fastening nut, the pressed base can be tightly attached to the surface of a fixed object through pushing and pressing of the fastening nut while the locknut is in locking, the locknut has higher structural stability compared with the original nut structure, in addition, the fastening nut and the pressed base are only in contact connection through groove surfaces, and in the process of installation and disassembly, the installation and the disassembly of a device can be completed only by screwing the fastening nut.

Description

Lock nut

Technical Field

The utility model relates to the technical field of locknuts, in particular to a locknut.

Background

In various industries such as railway, automobile, electric, mechanical, shipbuilding, construction, steel and the like, basic threaded nut fittings are used, threaded connection and nut locking are the most common mechanical connection methods, and locknuts are needed in some special application occasions.

The patent number CN214788501U discloses a locking nut which comprises a main nut and an auxiliary nut, wherein the main nut is divided into a plurality of sections, namely an outer hexagonal section, an outer thread section and a cone section, the outer thread section and the cone section are excessive through an inner arc section, the outer wall of the cone section is a pressed slope and is formed by a plurality of pressed blocks, the auxiliary nut is internally provided with an extrusion slope, the pressed blocks are separated through a first gap, and two symmetrical second gaps are arranged on two sides of the root of the pressed blocks.

The locknut has the following defects: the friction locking of the main nut is achieved through contact extrusion between the cone section at the top of the main nut and the inner extrusion slope of the auxiliary nut, so that the aim of loosening prevention is achieved.

Disclosure of Invention

The utility model aims to provide a locknut, which aims to solve the problems that the prior locknut provided in the background art realizes friction locking of a main nut through contact extrusion between a cone section at the top of the main nut and an extrusion slope in an auxiliary nut, so as to achieve the aim of locking, the locknut can be well locked, but the auxiliary nut at the upper part of the locknut is easy to loosen due to lack of effective limit and has insufficient structural stability when subjected to severe vibration, and the main nut and the auxiliary nut need to be screwed in sequence when being assembled or disassembled, and the operation is complex, and a great amount of time is consumed when the nut is assembled and disassembled, so that the locknut is very inconvenient to use.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the locknut comprises a nut mechanism and a locking mechanism, wherein the locking mechanism is arranged at the bottom of the nut mechanism, the nut mechanism comprises a fastening nut and a conical screw seat, and the conical screw seat is fixedly arranged at the bottom of the fastening nut;

the anti-loosening mechanism comprises a pressed base, the pressed base is in contact with the surface of the fixing piece during installation, a pressed groove seat is fixedly arranged at the top of the pressed base, a conical pressing groove matched with the conical screw seat is formed in the top of the pressed groove seat, and the outer side of the conical screw seat is in extrusion contact with the inner side of the conical pressing groove.

Preferably, the outer circumferential side of the conical screw seat is uniformly provided with four clearance notches, and the inner side of the joint of the conical screw seat and the fastening nut is provided with an annular groove.

Preferably, the fastening nut and the inner side of the conical screw seat are respectively provided with a threaded hole, and the fastening nut is connected with the fastening column through the threaded holes during installation.

Preferably, the inner surface of the conical pressing groove is in an inverted cone shape, and the inner surface of the conical pressing groove and the outer circumferential surface of the conical screw seat are both in smooth arrangement.

Preferably, the bottom of the compression base is provided with a rubber bottom pad, and the rubber bottom pad is fixedly adhered to the bottom of the compression base.

Preferably, the rubber bottom pad is made of rubber, anti-slip lines are uniformly formed in the bottom surface of the rubber bottom pad, and the pressed base is in contact with the surface of the fixing piece through the rubber bottom pad during installation.

Compared with the prior art, the technical scheme provided by the utility model has the following technical effects:

this locknut adopts underlying structure with locking structure, with locking structure setting in the bottom of fastening nut, contact extrusion through fastening nut bottom toper spiral shell seat and pressurized slot seat, can apply inboard extrusion force to toper spiral shell seat, make the toper spiral shell seat with tie the friction locking between the post, thereby reach the locking purpose to fastening nut locking, the accessible fastening nut bulldozes the surface that makes the pressurized base hug closely the fixture in locking, can realize locking each other between fastening nut and the pressurized base, compare in former nut structure has higher structural stability, only contact through the groove surface between fastening nut and the pressurized base and be connected, when installation and dismantlement, all only need twist the fastening nut and can accomplish the installation and the dismantlement operation to the device, compare in former nut structure easy dismounting and fast, the use of nut has been made things convenient for greatly.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall upper side structure of the present utility model;

FIG. 2 is a schematic view of the overall underside structure of the present utility model;

FIG. 3 is a schematic view of the upper side structure of the nut mechanism of the present utility model;

FIG. 4 is a schematic view of the underside structure of the nut mechanism of the present utility model;

FIG. 5 is a schematic view of the upper side structure of the base unit of the present utility model;

fig. 6 is a schematic view of the underside structure of the base unit of the present utility model.

Reference numerals illustrate: 1. a nut mechanism; 2. a locking mechanism; 3. a threaded hole; 4. a fastening nut; 5. a conical screw seat; 6. a clearance notch; 7. a pressed groove seat; 8. a pressed base; 9. a rubber bottom pad; 10. a conical pressing groove; 11. and (5) anti-skid lines.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the utility model.

Examples

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a locknut, includes nut mechanism 1 and lockmechanism 2, and nut mechanism 1 includes fastening nut 4 and toper spiral shell seat 5, and the rust-resistant cladding material is all done on the surface of fastening nut 4 and toper spiral shell seat 5, and the fixed bottom that sets up in fastening nut 4 of toper spiral shell seat 5, and screw hole 3 has all been seted up to the inboard of fastening nut 4 and toper spiral shell seat 5, and fastening nut 4 is connected with the bolt post through screw hole 3 during the installation, and this nut structure has the commonality, can cooperate the use with various bolt posts.

The clearance notch 6 that the external circumference side of toper spiral shell seat 5 evenly offered four in quantity, through the segmentation of clearance notch 6, the shape of toper spiral shell seat 5 is the lamella form, can inwards carry out certain shrink when receiving outside extrusion, and annular channel has been seted up to the junction inboard of toper spiral shell seat 5 and fastening nut 4, can prevent that toper spiral shell seat 5 from breaking when compressing the shrink through the seting up of annular channel.

The anti-loosening mechanism 2 is arranged at the bottom of the nut mechanism 1, the anti-loosening mechanism 2 comprises a pressed base 8, the pressed base 8 is in contact with the surface of a fixing piece during installation, the pressed base 8 is tightly attached to the surface of a fixing object through pushing and pressing of the fastening nut 4 while loosening prevention, mutual locking between the fastening nut 4 and the pressed base 8 can be achieved, a rubber bottom pad 9 is arranged at the bottom of the pressed base 8, and the rubber bottom pad 9 is fixedly adhered to the bottom of the pressed base 8.

The rubber base pad 9 is rubber material, and the rubber base pad 9 has higher coefficient of friction, can increase the steadiness of pressing the contact between base 8 and the mounting, improves the locking effect of nut, and anti-skidding line 11 has evenly been seted up to the bottom surface of rubber base pad 9, and anti-skidding line 11 multiplicable rubber base pad 9's surface roughness further increases the steadiness of pressing the contact between base 8 and the mounting, presses the base 8 to contact with the surface of mounting through rubber base pad 9 during the installation.

The top of the compression base 8 is fixedly provided with a compression groove seat 7, the top of the compression groove seat 7 is provided with a conical compression groove 10 matched with the conical screw seat 5, the inner face of the conical compression groove 10 is reversely conical, the conical screw seat 5 can shrink inwards under the guiding pushing pressure of the conical groove surface when the conical screw seat 5 is contacted with the compression groove seat 7, the surface of the bolt column is extruded, the conical screw seat 5 is in friction locking with the bolt column, the inner face of the conical compression groove 10 and the outer circumferential face of the conical screw seat 5 are both smooth, the contact friction force between the inner face of the conical compression groove 10 and the conical screw seat 5 can be reduced when the conical screw seat is contacted, the abrasion of the conical screw seat 5 can be reduced, and the outer side of the conical screw seat 5 is in extrusion contact with the inner side of the conical compression groove 10.

The bolt is connected to the upper portion of a fixing piece firstly during installation, then the pressed base 8 is sleeved on the upper portion of the bolt, the rubber bottom pad 9 at the bottom of the pressed base 8 is guaranteed to be in contact with and attached to the surface of the fixing piece during installation, then the fastening nut 4 is sleeved on the top end of the bolt, the fastening nut 4 is enabled to move downwards until the clearance notch 6 is in contact with and extruded to the inner side of the conical pressing groove 10 through screwing, screwing is continued after contact, under the pushing force of the fastening nut 4, the conical screw seat 5 is extruded to the inner side of the conical pressing groove 10, extrusion force towards the inner side can be applied to the conical screw seat 5 during extrusion, friction locking between the conical screw seat 5 and the bolt is achieved, the purpose of locking the fastening nut 4 is achieved, screwing is stopped after the fastening nut 4 is screwed, the installation operation of the nut is completed, the torque is guaranteed not to be too large, the nut is prevented from being damaged due to excessive extrusion, and the fastening nut 4 is enabled to be removed from the conical pressing groove 10 only when the fastening nut 4 is required to be loosened, and the dismounting operation is completed.

To sum up, this locknut adopts the underlying structure with locknut, set up the bottom at fastening nut 4 with locknut, contact extrusion through fastening nut 4 bottom toper spiral shell seat 5 and pressurized slot seat 7, can apply inboard extrusion force to toper spiral shell seat 5, make the toper spiral shell seat 5 and tie the friction locking between the post, thereby reach the purpose to fastening nut 4 locking locknut, accessible fastening nut 4 bulldoze and make the pressurized base 8 hug closely the surface of fixture in locking, can realize locking each other between fastening nut 4 and pressurized base 8, compare in former nut structure has higher structural stability, and only contact through the groove surface between fastening nut 4 and the pressurized base 8 and be connected, when installation and dismantlement, all only need twist the installation and the dismantlement operation to the device to fastening nut 4, compare in former nut structure easy dismounting and quick-witted, the use of nut has been greatly facilitated.

Thus, embodiments of the present utility model have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the components are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.

Those skilled in the art will appreciate that the features recited in the various embodiments of the utility model and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the utility model. In particular, the features recited in the various embodiments of the utility model and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the utility model. All such combinations and/or combinations fall within the scope of the utility model.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the utility model thereto, but to limit the utility model thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the utility model.

Claims (6)

1. The utility model provides a locknut, includes nut mechanism (1) and lockmechanism (2), its characterized in that: the anti-loosening mechanism (2) is arranged at the bottom of the nut mechanism (1), the nut mechanism (1) comprises a fastening nut (4) and a conical screw seat (5), and the conical screw seat (5) is fixedly arranged at the bottom of the fastening nut (4);

the anti-loosening mechanism (2) comprises a pressed base (8), the pressed base (8) is in contact with the surface of a fixing piece during installation, a pressed groove seat (7) is fixedly arranged at the top of the pressed base (8), a conical pressing groove (10) matched with the conical screw seat (5) is formed in the top of the pressed groove seat (7), and the outer side of the conical screw seat (5) is in extrusion contact with the inner side of the conical pressing groove (10).

2. A locknut as defined in claim 1, wherein: the outer circumference side of the conical screw seat (5) is uniformly provided with four clearance notches (6), and the inner side of the joint of the conical screw seat (5) and the fastening nut (4) is provided with an annular groove.

3. A locknut as defined in claim 2, wherein: screw holes (3) are formed in the inner sides of the fastening nuts (4) and the conical screw seats (5), and the fastening nuts (4) are connected with the fastening columns through the screw holes (3) during installation.

4. A locknut as defined in claim 1, wherein: the inner surface of the conical pressing groove (10) is in an inverted cone shape, and the inner surface of the conical pressing groove (10) and the outer circumferential surface of the conical screw seat (5) are both in smooth arrangement.

5. A locknut as defined in claim 4, wherein: the bottom of the pressed base (8) is provided with a rubber bottom pad (9), and the rubber bottom pad (9) is fixedly adhered to the bottom of the pressed base (8).

6. A locknut as defined in claim 5, wherein: the rubber bottom pad (9) is made of rubber, anti-slip lines (11) are evenly formed in the bottom surface of the rubber bottom pad (9), and the pressed base (8) is in contact with the surface of the fixing piece through the rubber bottom pad (9) during installation.