CN219888468U - Embedded positioning lock nut - Google Patents

Abstract

The utility model discloses an embedded positioning lock nut, which comprises a nut body, wherein the lower end of the nut body is sleeved with a rotatable guide washer, the edge of the upper port of the guide washer is hung on the outer side of the nut body, a plurality of strip-shaped teeth are radially arranged on the upper surface and the lower surface of the guide washer, clamping blocks for locking the nut body in an anti-rotation mode are inserted into the left side wall and the right side wall of an internal threaded hole of the nut body, rubber blocks are arranged at one ends of the clamping blocks, facing the outer side of the nut body, when the nut body is screwed on a screw rod, the teeth on the lower side of the guide washer are snapped on equipment when the nut body is screwed on the guide washer, the teeth on the upper side of the guide washer are snapped on the nut body to perform anti-loosening positioning on the nut body, and meanwhile one ends of the clamping blocks are abutted on the screw rod under elastic extrusion of the rubber blocks to further lock the nut body, so that the nut body has a good anti-loosening effect.

Description

Embedded positioning lock nut

Technical Field

The utility model relates to the technical field of nuts, in particular to an embedded positioning lock nut.

Background

The nut is a part for tightly connecting mechanical equipment, the bolts can be connected together through the threads on the inner sides, and when the nut is used for fastening some mechanical equipment, the mechanical equipment works to vibrate so as to cause the nut to rotate and loosen.

The Chinese patent with the bulletin number of CN204512134U discloses a positioning nut which has a simple structure and can be guided, and comprises a nut and a washer, wherein one end of the washer is riveted on the nut, the washer can rotate relative to the nut, the lower end part of the nut penetrates through the washer and extends out from the other end of the washer, the lower end of a threaded hole of the nut is provided with a section of unthreaded guiding ring groove, and the upper end of the threaded hole of the nut is sleeved with a locking rubber ring; the lower end of the nut passes through and extends out of the gasket, the lower end of the nut can be used as a guide positioning sleeve to position the tire bolt on the mounting hole of the tire, and the whole positioning nut has only two parts and has a simple structure; the lower end of the threaded hole of the nut is provided with a guide ring groove without threads, so that the nut can be guided and corrected before being screwed into the screw rod, and the nut is prevented from being obliquely clamped on the screw rod; the anti-loose rubber ring at the upper end of the threaded hole of the nut can prevent the nut from loosening after being installed and is dustproof.

The nut body can be prevented from loosening after being installed by the loosening rubber ring arranged at the upper end of the nut body, but the nut body is prevented from loosening by only relying on the friction force of the rubber ring, and the nut body is prevented from loosening due to limited loosening prevention capacity and cannot be well prevented from loosening due to rotation stopping of the rubber ring by utilizing the friction force.

Disclosure of Invention

In order to solve the problem that the nut body is loose-proof only by virtue of friction force of a rubber ring and has a certain defect, the utility model provides an embedded positioning lock nut, which adopts the following technical scheme:

the utility model provides an embedded location lock nut, includes the nut body, and the lower extreme cover of nut body is equipped with and carries out pivoted and leads the positive packing ring, and lead the upper port edge of positive packing ring and hang in the outside of nut body, lead the upper surface and the lower surface of positive packing ring and all be radial and be provided with a plurality of long banding tooth, all alternate on the lateral wall about the nut body internal thread hole and have the fixture block that prevents gyration locking to the nut body, and the one end that the fixture block faced the nut body outside is provided with the rubber piece.

Preferably, the center of the pilot washer is provided with a pilot hole, the upper end of the pilot washer is provided with a sleeve edge sleeved at the lower end of the nut body, and the upper port of the sleeve edge is provided with a flange which bends inwards.

Preferably, the lower end face edge of the nut body is provided with an outward protruding pressing edge, the left side and the right side of the nut body are both provided with jacks for installing and guiding the clamping blocks, and the port of the outer side of each jack is provided with a plurality of clamping ribs for fixing the rubber blocks.

Preferably, the clamping block is provided with a clamping blade facing one end of the inner side of the nut body, and the clamping blade is obliquely arranged along the loosening and rotating direction of the nut body.

Preferably, the clamping block is fixed with the inserted column towards one end outside the nut body, the end part of the inserted column is provided with a conical head, a plurality of annular hanging teeth are arranged on the outer side of the inserted column, and the hanging teeth incline towards the direction away from the conical head.

Compared with the prior art, the utility model has the beneficial effects that:

according to the anti-loosening device, when the nut body is screwed on the screw rod, the gear teeth on the lower side of the guide washer are used for being clamped on equipment when the nut body is screwed on the guide washer, the gear teeth on the upper side of the guide washer are used for clamping the nut body, so that anti-loosening positioning is performed on the nut body, and meanwhile one end of the clamping block is abutted on the screw rod under elastic extrusion of the rubber block, so that the nut body is further stopped from rotating, and the nut body has a good anti-loosening effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front cross-sectional view of an in-line retainer lock nut of the present utility model;

FIG. 2 is a top cross-sectional view of an in-line positioning lock nut of the present utility model;

FIG. 3 is a schematic view of a pilot washer with an embedded locating lock nut according to the present utility model;

FIG. 4 is a schematic view of a nut body with an embedded retainer lock nut according to the present utility model;

fig. 5 is a schematic view of a fixture block with an embedded positioning lock nut according to the present utility model.

In the figure: 1. a guide gasket; 11. sleeving edges; 12. teeth; 13. a pilot hole; 14. a flange; 2. a nut body; 21. edge pressing; 22. a jack; 23. clamping ribs; 3. a clamping block; 31. a clamping blade; 32. inserting a column; 33. a conical head; 34. hanging teeth; 4. rubber blocks.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Referring to fig. 1 and 2, an embedded positioning lock nut body includes a nut body 2, a rotatable guide washer 1 is sleeved at a lower end of the nut body 2, an upper end opening edge of the guide washer 1 is hung at an outer side of the nut body 2, a plurality of long teeth 12 are radially arranged on an upper surface and a lower surface of the guide washer 1, clamping blocks 3 for anti-rotation locking the nut body 2 are inserted into left and right side walls of an inner threaded hole of the nut body 2, a rubber block 4 is arranged at one end of the clamping blocks 3 facing the outer side of the nut body 2, when the nut body 2 is screwed on a screw rod, the lower teeth 12 of the guide washer 1 are tightly clamped on equipment when the nut body 2 is screwed on the guide washer 1, and the nut body 2 is tightly clamped by the teeth 12 at the upper side of the guide washer 1 so as to perform anti-rotation positioning on the nut body, and meanwhile, one end of the clamping blocks 3 is tightly abutted on the screw rod under elastic extrusion of the rubber block 4 so as to further stop the nut body 2, so that the nut body 2 has a good anti-rotation effect.

Referring to fig. 3 specifically, a pilot hole 13 is formed in the center of the pilot washer 1, the pilot washer 1 is used for pilot of the nut body 2 when screwed on the screw rod through the pilot hole 13, so that screwing installation of the nut body 2 is more convenient, a sleeve edge 11 sleeved at the lower end of the nut body 2 is arranged at the upper end of the pilot washer 1, a flange 14 bent inwards is arranged at the upper port of the sleeve edge 11, and the pilot washer 1 is sleeved with the nut body 2 through the sleeve edge 11 and the flange 14 and is in hooking fit with the nut body 2.

Referring to fig. 4 specifically, an edge of a lower end surface of the nut body 2 is provided with an outward protruding pressing edge 21, the nut body 2 is pressed on the guide washer 1 by the pressing edge 21 and is rotationally hung by matching with the sleeve edge 11 and the flange 14, insertion holes 22 for installing and guiding the clamping blocks 3 are respectively arranged on the left side and the right side of the nut body 2, the insertion holes 22 guide the clamping blocks 3 when moving, a plurality of clamping ribs 23 for fixing the rubber blocks 4 are arranged at the outer side ports of the insertion holes 22, and the clamping ribs 23 arranged in the insertion holes 22 further block and fix the rubber blocks 4.

Referring to fig. 5 specifically, a clamping blade 31 is disposed at one end of the clamping block 3 facing the inner side of the nut body 2, and the clamping blade 31 is obliquely disposed along the loosening and rotating direction of the nut body 2, so that the clamping blade 31 is not snapped onto the screw rod when the nut body 2 is in loosening and rotating, the inclined clamping blade 31 is snapped onto the screw rod when the nut body 2 is in loosening and rotating, the clamping block 3 is fixed with a plunger 32 at one end of the outer side of the nut body 2, a conical head 33 is disposed at the end of the plunger 32, the clamping block 3 is mounted on the rubber block 4 through the plunger 32 and the conical head 33, a plurality of annular hanging teeth 34 are disposed at the outer side of the plunger 32, and the hanging teeth 34 are inclined in a direction away from the conical head 33, and the plunger 32 is hung on the rubber block 4 through the hanging teeth 34 disposed in an inclined manner.

Working principle: when the nut body 2 is screwed on the screw, the guide washer 1 is sleeved on the screw to guide, the nut body 2 is screwed at the moment, when the nut body 2 is screwed on the fastening position, the nut body 2 is tightly abutted on the guide washer 1 through the teeth 12 on the lower side of the guide washer 1 being tightly snapped on equipment, the teeth 12 on the upper side of the guide washer 1 are tightly snapped on the nut body 2, and meanwhile, the clamping blade 31 on the clamping block 3 is tightly abutted on the screw under the elastic extrusion of the rubber block 4, so that the locking and positioning of the nut body 2 are completed.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides an embedded location lock nut, includes nut body (2), its characterized in that: the nut is characterized in that the lower end of the nut body (2) is sleeved with a guide gasket (1) capable of rotating, the edge of the upper port of the guide gasket (1) is hung on the outer side of the nut body (2), a plurality of long teeth (12) are radially arranged on the upper surface and the lower surface of the guide gasket (1), clamping blocks (3) for preventing rotation locking of the nut body (2) are inserted in the left side wall and the right side wall of an inner threaded hole of the nut body (2), and rubber blocks (4) are arranged at one ends of the clamping blocks (3) facing the outer side of the nut body.

2. The embedded positioning lock nut according to claim 1, wherein a pilot hole (13) is formed in the center of the pilot washer (1), a sleeve edge (11) sleeved at the lower end of the nut body (2) is arranged at the upper end of the pilot washer (1), and a flange edge (14) bent inwards is arranged at the upper port of the sleeve edge (11).

3. The embedded positioning lock nut according to claim 1, wherein the edge of the lower end face of the nut body (2) is provided with a pressing edge (21) protruding outwards, the left side and the right side of the nut body (2) are provided with inserting holes (22) for installing and guiding the clamping blocks (3), and a plurality of clamping ribs (23) for fixing the rubber blocks (4) are arranged at the outer side ports of the inserting holes (22).

4. The embedded positioning lock nut according to claim 1, wherein a clamping blade (31) is arranged at one end of the clamping block (3) facing the inner side of the nut body (2), and the clamping blade (31) is obliquely arranged along the loosening and rotating direction of the nut body (2).

5. The embedded positioning lock nut according to claim 4, wherein an inserting column (32) is fixed at one end of the clamping block (3) facing the outer side of the nut body (2), a conical head (33) is arranged at the end position of the inserting column (32), a plurality of annular hanging teeth (34) are arranged on the outer side of the inserting column (32), and the hanging teeth (34) incline towards a direction away from the conical head (33).