CN216111688U - Integrated eccentric locknut - Google Patents

Abstract

The utility model relates to an integrated eccentric locknut which comprises a female nut, a male nut and a connecting piece, wherein the female nut is internally provided with a first threaded through hole which is eccentrically arranged, and the male nut is internally provided with a second threaded through hole which is eccentrically arranged; one end of the female nut is recessed to form a groove, and the axis of the groove is eccentric and parallel to the axis of the first threaded through hole; one end of the convex nut protrudes to form a convex cylinder, and the axis of the convex cylinder is eccentric and parallel to the axis of the second threaded through hole; the protruding cylindrical sleeve is arranged in the groove and is connected with the inner side wall of the groove through a connecting piece. The integrated eccentric anti-loose nut is suitable for occasions with higher requirements on anti-loose, connection anti-loose is realized through the eccentric structures of the convex nut and the concave nut, meanwhile, in order to ensure that the convex nut and the concave nut are not separated in the using process, the connecting piece is used, the two nuts are ensured to be integrally used, and the practicability of the nut is improved.

Description

Integrated eccentric locknut

Technical Field

The utility model relates to the technical field of connecting pieces, in particular to an integrated eccentric locknut.

Background

The nut installation does not have the locking effect in itself, even after flat, the bullet pad has been increased, still can appear not hard up phenomenon under some use vibration environment to make equipment have the safe fixed of way, often can bring the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an integrated eccentric locknut aiming at the defects of the prior art.

The technical scheme for solving the technical problems is as follows: an integrated eccentric locknut comprises a female nut, a male nut and a connecting piece, wherein a first threaded through hole which is eccentrically arranged is formed in the female nut, and a second threaded through hole which is eccentrically arranged is formed in the male nut; one end of the female nut is recessed to form a groove, and the axis of the groove is eccentric to the axis of the first threaded through hole and is arranged in parallel; one end of the convex nut protrudes to form a convex cylinder, and the axis of the convex cylinder is eccentric and parallel to the axis of the second threaded through hole; the protruding cylindrical sleeve is arranged in the groove and is connected with the inner side wall of the groove through a connecting piece.

The utility model has the beneficial effects that: the integrated eccentric anti-loose nut is suitable for occasions with higher requirements on anti-loose, connection anti-loose is realized through the eccentric structures of the convex nut and the concave nut, meanwhile, in order to ensure that the convex nut and the concave nut are not separated in the using process, the connecting piece is used, the two nuts are ensured to be integrally used, and the practicability of the nut is improved.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the eccentric distance between the axis of the first threaded through hole and the axis of the groove is the same as the eccentric distance between the axis of the second threaded through hole and the axis of the protruding cylinder.

The beneficial effect of adopting the further scheme is that: the stable connection of the holding structure is facilitated, and the purpose of good relaxation is achieved.

Further, the inner diameter of the first threaded through hole is the same as the inner diameter of the second threaded through hole.

Furthermore, the connecting piece is a check ring, and the protruding cylinder is limited in the groove through the check ring and can be equivalent to the groove rotation.

The beneficial effect of adopting the further scheme is that: through setting up the retaining ring, easy to assemble and female nut and male nut's integration are connected.

Furthermore, a first limiting groove is formed in the inner side wall of the groove, a second limiting groove is formed in the outer side wall of the protruding cylinder, the first limiting groove and the second limiting groove surround to form a limiting space, the connecting piece is arranged in the limiting space, and the radial width of the cross section of the connecting piece is larger than that of the first limiting groove or the second limiting groove.

The beneficial effect of adopting the further scheme is that: the connecting piece can not be separated from the first limiting groove and the second limiting groove, and the stability of the integrated nut structure is facilitated.

Furthermore, the first limiting groove is annular and is arranged along the circumferential direction of the protruding cylinder, and the second limiting groove is annular and is arranged along the circumferential direction of the groove; the connecting piece is an annular connecting piece.

The beneficial effect of adopting the further scheme is that: through setting up annular connecting piece to set up annular spacing groove, can follow circumference and carry out effectual spacing connection, be favorable to the stability of integration nut structure.

Further, the cross sections of the first limiting groove and the second limiting groove are both square.

Further, the axial width of the first limiting groove is larger than that of the second limiting groove, and the connecting piece is sleeved in the second limiting groove and is matched with the width of the second limiting groove; or the axial width of the second limiting groove is greater than that of the first limiting groove, and the connecting piece is sleeved in the first limiting groove and is matched with the width of the first limiting groove.

The beneficial effect of adopting the further scheme is that: the connecting piece can be stably limited in one smaller limiting groove, the connecting piece is reused for carrying out structural limitation on the other limiting groove, the connecting piece cannot be movably shifted, and the like, so that the stability of the integrated structure is facilitated.

Further, the outer diameter of the protruding cylinder is the same as the inner diameter of the groove.

Further, the axial length of the protruding cylinder is the same as the axial length of the groove.

The beneficial effect of adopting the further scheme is that: so that the convex cylinder of the convex nut can be just arranged in the groove of the concave nut.

Drawings

FIG. 1a is a schematic front view of a female nut according to the present invention;

FIG. 1b is a schematic cross-sectional view taken along line A-A of FIG. 1 a;

FIG. 1c is a schematic top view of the female nut of the present invention;

FIG. 2a is a schematic front view of a male nut of the present invention;

FIG. 2b is a schematic cross-sectional view taken along line A-A of FIG. 2 a;

FIG. 2c is a schematic bottom view of the male nut of the present invention;

FIG. 3a is a schematic structural diagram of the integrated eccentric anti-loose nut in a front view in a non-eccentric state;

FIG. 3b is a schematic cross-sectional view taken along line A-A of FIG. 3 a;

FIG. 4a is a schematic structural diagram of the integrated eccentric anti-loose nut in a front view in an eccentric state;

FIG. 4b is a schematic cross-sectional view of the plane A-A in FIG. 4 a.

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

1. a female nut; 11. a groove; 12. a first limit groove; 13. a first threaded through hole;

2. a male nut; 21. a convex cylinder; 22. a second limit groove; 23. a second threaded through hole;

3. a connecting member.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1a to 4b, the integrated eccentric anti-loose nut of the present embodiment includes a female nut 1, a male nut 2 and a connecting piece 3, wherein the female nut 1 has an eccentrically arranged first threaded through hole 13 therein, and the male nut 2 has an eccentrically arranged second threaded through hole 23 therein; one end of the female nut 1 is recessed to form a groove 11, and the axis of the groove 11 is eccentric and parallel to the axis of the first threaded through hole 13; one end of the convex nut 2 protrudes to form a convex cylinder 21, and the axis of the convex cylinder 21 is eccentric and parallel to the axis of the second threaded through hole 23; protruding cylinder 21 cover is established in the recess 11 and through connecting piece 3 with the inside wall of recess 11 is connected. The connecting piece is arranged so as not to lose the nut in the using process and is convenient to use.

As shown in fig. 1b and 2b, the eccentric distance between the axis of the first threaded through hole 13 and the axis of the groove 11 is the same as the eccentric distance between the axis of the second threaded through hole 23 and the axis of the convex cylinder 21. The stable connection of the holding structure (such as a bolt, a screw rod and the like) is facilitated, and the good anti-loosening purpose is achieved.

As shown in fig. 1b and 2b, the inner diameter of the first threaded through hole 13 is the same as the inner diameter of the second threaded through hole 23, and is M.

The connecting member 3 of the present embodiment may be made of an elastic material, for example, a rubber material, a plastic material, or a metal material. Can be opened on the connecting piece 3, easy to assemble.

As shown in fig. 3b and 4b, a preferable scheme of this embodiment is that the connecting element 3 is a retainer ring, and the protruding cylinder 21 is limited in the groove 11 by the retainer ring and can rotate corresponding to the groove 11. Through setting up the retaining ring, easy to assemble and female nut and male nut's integration are connected. The check ring is for preventing the separation of female nut and male nut, and the check ring cross-section is circular split check ring, and check ring self has certain elasticity, and the check ring can be designed as required, also can select according to standard size.

As shown in fig. 1b, fig. 2b, fig. 3b and fig. 4b, a first limiting groove 12 is formed on an inner side wall of the groove, a second limiting groove 22 is formed on an outer side wall of the protruding cylinder 21, the first limiting groove 12 and the second limiting groove 22 surround to form a limiting space, the connecting element 3 is disposed in the limiting space, and a radial width of a cross section of the connecting element 3 is greater than a radial width of the first limiting groove 12 or the second limiting groove 22, for example, an inner ring side wall of the connecting element 3 may be adapted to a groove bottom wall of the second limiting groove 22, so that an outer ring side wall of the connecting element 3 exceeds the second limiting groove 22 and is located in the first limiting groove 12; or the outer ring side wall of the connecting piece 3 can be matched with the groove bottom wall of the first limit groove 12, so that the inner ring side wall of the connecting piece 3 exceeds the first limit groove 12 and is positioned in the second limit groove 22; the connecting piece can not be separated from the first limiting groove and the second limiting groove, and the stability of the integrated nut structure is facilitated.

As shown in fig. 1b, fig. 2b, fig. 3b and fig. 4b, the first position-limiting groove 12 is annular and arranged along the circumferential direction of the convex cylinder 21, and the second position-limiting groove 22 is annular and arranged along the circumferential direction of the groove 11; the connecting piece 3 is an annular connecting piece. Through setting up annular connecting piece to set up annular spacing groove, can follow circumference and carry out effectual spacing connection, be favorable to the stability of integration nut structure.

As shown in fig. 1b, fig. 2b, fig. 3b and fig. 4b, the cross-section of the first position-limiting groove 12 and the second position-limiting groove 22 of the present embodiment may be polygonal, circular, oval, etc. In order to make the connection of the connecting member 3 on the protruding cylinder 21 more stable, the second limiting groove 22 or the first limiting groove 12 may be configured to have a structure with a wide inner portion and a narrow outer portion, so that the shape of one end of the connecting member 3 is adapted to the shape of the second limiting groove 22 or the first limiting groove 12. One end of the connecting piece 3 is stably limited in the corresponding limiting groove, and the other end of the connecting piece can move relative to other limiting grooves, so that the movable connection between the concave nut and the convex nut during relative rotation is ensured.

An alternative to this embodiment is that the first retaining groove 12 and the second retaining groove 22 are both square in cross-section.

As shown in fig. 1b, fig. 2b, fig. 3b and fig. 4b, the axial width of the first position-limiting groove 12 is greater than the axial width of the second position-limiting groove 22, and the connecting member 3 is sleeved in the second position-limiting groove 22 and is adapted to the width of the second position-limiting groove 22; or the axial width of the second limit groove 22 is greater than the axial width of the first limit groove 12, and the connecting piece 3 is sleeved in the first limit groove 12 and is matched with the width of the first limit groove 12. The connecting piece can be stably limited in one smaller limiting groove, the connecting piece is reused for carrying out structural limitation on the other limiting groove, the connecting piece cannot be moved and shifted, and the stability of the integrated structure is facilitated.

As shown in fig. 1b, 2b, 3b and 4b, the outer diameter of the protruding cylinder 21 is the same as the inner diameter of the recess 11, all R.

As shown in fig. 3b and 4b, the axial length of the raised cylinder 21 is the same as the axial length of the recess 11. So that the convex cylinder of the convex nut can be just arranged in the groove of the concave nut.

The female nut and the male nut of this embodiment can all adopt the hexagon nut that the appearance is the same, and the equilateral hexagon structure that the appearance adopted is convenient for tighten of spanner.

The recess of the female nut of this embodiment is cylindrical structure for use with the protruding cylinder cooperation of male nut, the first spacing groove has been seted up to the cylindrical section department that female nut formed the recess, is used for the installation of connecting piece, and the centre of a circle of the cylindrical structure recess of female nut is concentric with the centroid of hexagon appearance. The eccentric thread of the first thread through hole of the female nut is a standard coarse thread and a right-handed thread, the center of the thread deviates a certain distance e relative to the center of a hexagonal centroid or a cylindrical structure, and the eccentric direction and the eccentric distance must be completely consistent with those of the male nut.

In order to match the convex nut with the groove of the cylindrical structure of the concave nut, the convex nut is milled with a section of convex cylinder, the diameter and the depth of the milled convex cylinder are completely the same as the diameter and the height of the groove of the cylindrical structure in the concave nut, and the convex nut and the concave nut can be in clearance fit; meanwhile, a section of annular second limiting groove is reserved on the convex cylinder of the convex nut and is used for being matched with the connecting piece, and the circle center of the convex cylinder and the circle center of the second limiting groove used for being matched with the connecting piece are concentric with the hexagonal shape center; the thread of the male nut is a standard coarse thread and a right-handed thread, the center of the thread deviates a distance e from the hexagonal centroid, and the eccentric direction and the eccentric distance must be completely consistent with those of the female nut. After the male nut and the female nut are matched and relatively rotated, the eccentric distance between the female nut and the male nut is e1, as shown in fig. 4 b.

The eccentric lock nut of integration of this embodiment mainly used connection structure's locking is connected for use with bolt or the screw rod cooperation that corresponds, be used for compressing tightly the object, realize locking function through screwing up female nut and convex nut simultaneously, this integration lock nut can use under different vibration frequency channels, and the not hard up phenomenon can not appear. The eccentric locknut of integration of this embodiment divide into, two eccentric nut down, and the protruding cylinder of the convex nut in the locknut and the recess clearance fit of concave nut, when using, back on concave nut and convex nut installed corresponding bolt or screw rod, at first screw up convex nut (or concave nut), when screwing up convex nut (or concave nut), concave nut (or convex nut) will be in lax state all the time, treat that convex nut (or concave nut) screws up the back, but concave nut (or convex nut) levogyration or dextrorotation are screwed up and can be realized connecting, reach the locking effect of two nuts simultaneously. The matching structure of the male nut and the female nut has a certain eccentric distance relative to the center of the thread of the male nut and the female nut, and the eccentric distance e is less than or equal to f.R, wherein f is a friction coefficient, and R is a matching radius. After the convex nut (the concave nut) generates a certain rotation angle in opposite directions or in reverse directions, the convex nut (the concave nut) and the concave nut can generate a relative holding force for the bolt/the screw rod, and meanwhile, the eccentric distance of the convex nut (the concave nut) is in the friction circle of the convex nut (the concave nut), so that when vibration or other external loads occur, the convex nut and the concave nut cannot rotate relatively, and the purpose of looseness prevention is achieved.

The eccentric lock nut of integration of this embodiment is applicable to the occasion that has higher requirement to locking, through the eccentric structure of convex nut and female nut, realizes the locking of connecting, in order to guarantee in the use convex nut and female nut inseparable simultaneously, has used the connecting piece, guarantees that two nuts integration use, has increased the practicality of nut.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An integrated eccentric locknut is characterized by comprising a female nut, a male nut and a connecting piece, wherein the female nut is internally provided with a first threaded through hole which is eccentrically arranged, and the male nut is internally provided with a second threaded through hole which is eccentrically arranged; one end of the female nut is recessed to form a groove, and the axis of the groove is eccentric to the axis of the first threaded through hole and is arranged in parallel; one end of the convex nut protrudes to form a convex cylinder, and the axis of the convex cylinder is eccentric and parallel to the axis of the second threaded through hole; the protruding cylindrical sleeve is arranged in the groove and is connected with the inner side wall of the groove through a connecting piece.

2. The integrated eccentric locknut of claim 1, wherein the eccentric distance between the axis of the first threaded through hole and the axis of the groove is the same as the eccentric distance between the axis of the second threaded through hole and the axis of the protruding cylinder.

3. The integrated eccentric locknut of claim 1, wherein the inner diameter of the first threaded through-hole is the same as the inner diameter of the second threaded through-hole.

4. The integrated eccentric locknut of claim 1, wherein the connecting piece is a retaining ring, and the raised cylinder is retained in the groove by the retaining ring and can rotate equivalently to the groove.

5. The integrated eccentric locknut of claim 1, wherein the inner sidewall of the groove is provided with a first limiting groove, the outer sidewall of the protruding cylinder is provided with a second limiting groove, the first limiting groove and the second limiting groove surround to form a limiting space, the connecting member is disposed in the limiting space, and the radial width of the cross section of the connecting member is greater than the radial width of the first limiting groove or the second limiting groove.

6. The integrated eccentric locknut of claim 5, wherein the first limiting groove is annular and is arranged along the circumferential direction of the groove, and the second limiting groove is annular and is arranged along the circumferential direction of the raised cylinder; the connecting piece is an annular connecting piece.

7. The integrated eccentric locknut of claim 5, wherein the cross section of the first and second limiting grooves is square.

8. The integrated eccentric locknut of claim 5, wherein the axial width of the first limiting groove is greater than the axial width of the second limiting groove, and the connecting piece is sleeved in the second limiting groove and is adapted to the width of the second limiting groove; or the axial width of the second limiting groove is greater than that of the first limiting groove, and the connecting piece is sleeved in the first limiting groove and is matched with the width of the first limiting groove.

9. The integrated eccentric locknut of claim 1, wherein the outer diameter of the raised cylinder is the same as the inner diameter of the groove.

10. The integrated eccentric locknut of claim 1 wherein the axial length of the raised cylinder is the same as the axial length of the recess.

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