CN220337236U - Lock bolt and nut - Google Patents

Abstract

The utility model discloses a lockbolt nut, which comprises a bolt main body, wherein a first nut is sleeved on the surface of the bolt main body, the first nut is in threaded connection with a screw main body, one side of the first nut is provided with a rotating plate, one side of the rotating plate, which is away from the first nut, is rotationally connected with a second nut, the second nut is in threaded connection with the bolt main body, the second nut and the first nut are opposite in thread direction, a snap fastener is connected in a sliding manner in the first nut, one end of the snap fastener is fixedly connected with a lock tongue, the lock tongue is in sliding connection with the first nut, a spring is clamped between the lock tongue and the first nut, a clamping groove is formed in the corresponding position of the lock tongue in the rotating plate, the first nut and the second nut are mutually limited, the structure is provided with an anti-loosening locking structure, the bolt connection is ensured to be firm, and the bolt can be prevented from loosening caused by alternate changes due to external factors such as vibration.

Description

Lock bolt and nut

Technical Field

The utility model belongs to the technical direction of mechanical fastening, and particularly relates to a lockbolt and nut.

Background

Bolt and nut are parts fastened by a kind of connection through screw connection, and bolt and nut are widely used in the mechanical field, which are mainly used for connecting and fastening mechanical parts. The bolt and nut connection mode mainly prevents loosening of bolt and nut through the frictional force between the external screw thread of bolt and the internal screw thread of nut when the screw thread cooperation, in practical application, in order to prevent that frictional force that screw thread cooperation produced from being insufficient to prevent loosening, generally adopts to set up the gasket in the junction of bolt or nut and fastening part, the pressure when increasing bolt and nut cooperation to increase the frictional force between the external screw thread of bolt and the internal screw thread of nut, and then reduce the risk that bolt and nut become flexible.

However, when the bolt and the nut are in a vibration environment, particularly an environment with larger amplitude, vibration can cause sliding force of inclined planes of threads of the bolt and the nut, when the sliding force is larger than friction force between the threads, sliding is generated between external threads of the bolt and internal threads of the nut, and relative rotation is caused between the bolt and the nut, so that a connecting structure is loosened, and great potential safety hazards exist.

Disclosure of Invention

The utility model aims at solving the problems in the background technology by aiming at the prior device, namely a lockbolt and a locknut.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a lockbolt nut, includes the bolt main part, first nut has been cup jointed on the surface of bolt main part, and threaded connection between first nut and the screw rod main part, one side of first nut is equipped with the commentaries on classics board, one side that the commentaries on classics board deviates from first nut rotates and is connected with the second nut, and threaded connection between second nut and the bolt main part, and the opposite screw thread direction of second nut and first nut, the inside sliding connection of first nut has the snap-fastener, the one end fixedly connected with spring bolt of snap-fastener, and sliding connection between spring bolt and the first nut, the centre gripping has the spring between spring bolt and the first nut, the draw-in groove has been seted up in the corresponding position of spring bolt to the inside of commentaries on classics board.

The utility model further discloses a clamping device for clamping the lock tongue and the clamping groove, and the lock tongue is rotationally connected with the clamping groove.

The utility model further discloses that the clamping groove is a circumferential groove, and the cross section of the clamping groove is of an L-shaped structure.

The utility model further describes that the section of the rotating plate is in a convex structure, the inner diameter of the rotating plate is larger than the outer diameter of the bolt main body, and the rotating plate is sleeved on the surface of the bolt main body.

The utility model further discloses that the larger end of the bolt main body is provided with the groove, and the section of the groove is in a regular hexagon shape.

The utility model further discloses that the section of the bolt main body is of a T-shaped structure, and the larger end of the bolt main body is of a regular hexagon structure.

The utility model further discloses that the cross section of the lock tongue is of an L-shaped structure, and one side of the lock tongue is of an arc-shaped structure.

Compared with the prior art, the beneficial effects that reach are: in the present utility model, the number of the components,

the first nut and the second nut are mutually limited, and the nuts cannot be loosened no matter the first nut or the second nut is independently screwed, and the structure is provided with a locking structure, so that the bolt connection is ensured to be firm, and the bolt loosening caused by the alternate change of external factors such as vibration can be avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is a schematic view of the structure of the portion a of the present utility model.

In the figure: 1. a bolt body; 2. a groove; 3. a first nut; 4. a snap fastener; 5. a second nut; 6. a rotating plate; 7. a bolt; 8. a spring; 9. a clamping groove.

Detailed Description

The technical scheme of the present utility model is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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.

Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a lockbolt nut, including bolt body 1, first nut 3 has been cup jointed on the surface of bolt body 1, and threaded connection between first nut 3 and the screw rod main part, one side of first nut 3 is equipped with the swivel plate 6, one side that swivel plate 6 deviates from first nut 3 rotates and is connected with second nut 5, and threaded connection between second nut 5 and the bolt body 1, and the screw thread opposite direction of second nut 5 and first nut 3, the inside sliding connection of first nut 3 has snap fastener 4, the one end fixedly connected with spring bolt 7 of snap fastener 4, and sliding connection between spring bolt 7 and the first nut 3, spring 8 has been held to the clamp between spring bolt 7 and the first nut 3, draw-in groove 9 has been seted up in the corresponding position of spring bolt 7 to the inside of swivel plate 6.

Firstly, the bolt main body 1 is installed at a target position, then the first nut 3 is screwed on the bolt main body 1 clockwise, so that the installation of the bolt and the nut is realized, because the screw thread directions of the first nut 3 and the second nut 5 are opposite, the second nut 5 is screwed on the bolt main body 1 anticlockwise, the second nut 5 extrudes the lock tongue 7 along the rotating plate 6 in the moving process of the bolt main body 1, the spring 8 is contracted when the lock tongue 7 moves, when the larger end of the lock tongue 7 is positioned at the maximum end of the clamping groove 9, the spring 8 drives the lock tongue 7 to reset, and the limit installation between the first nut 3 and the rotating plate 6 is realized, and therefore, the rotating connection between the rotating plate 6 and the second nut 5 is realized, and the nut cannot be loosened no matter the first nut 3 or the second nut 5 is screwed singly.

The lock tongue 7 is clamped with the clamping groove 9, the lock tongue 7 is rotationally connected with the clamping groove 9, and the lock tongue 7 is clamped with the clamping groove 9, so that the limit between the rotating plate 6 and the first nut 3 can be conveniently realized.

The clamping groove 9 is a circumferential groove, the cross section of the clamping groove 9 is of an L-shaped structure, and the clamping groove 9 is a circumferential groove which can facilitate the clamping between the lock tongue 7 and the clamping groove 9.

The cross section of the rotating plate 6 is of a convex structure, the inner diameter of the rotating plate 6 is larger than the outer diameter of the bolt main body 1, the rotating plate 6 is sleeved on the surface of the bolt main body 1, and the rotating plate 6 is arranged in a shape which is convenient for the rotating plate 6 to be installed and rotated in the second nut 5.

The larger end of the bolt main body 1 is provided with the groove 2, the cross section of the groove 2 is regular hexagon, and the shape of the groove 2 is convenient for an operator to use the tool fixing bolt.

The cross section of the bolt main body 1 is of a T-shaped structure, the larger end of the bolt main body 1 is of a regular hexagon structure, and the shape of the larger end of the bolt main body 1 is convenient for a user to clamp and fix the bolt main body 1.

The cross section of spring bolt 7 is "L" shape structure, and one side of spring bolt 7 is arc structure, and the shape setting of spring bolt 7 can be convenient for spring bolt 7 automatic with draw-in groove 9 block.

When the bolt is used, the bolt main body 1 is firstly arranged at a target position, then the first nut 3 is screwed on the bolt main body 1 clockwise, the installation of the bolt and the nut is realized, because the screw thread directions of the first nut 3 and the second nut 5 are opposite, the second nut 5 is screwed on the bolt main body 1 anticlockwise, the second nut 5 extrudes the lock tongue 7 along the rotating plate 6 in the moving process of the bolt main body 1, the spring 8 is contracted when the lock tongue 7 moves, after the larger end of the lock tongue 7 is clamped with the clamping groove 9, the spring 8 drives the lock tongue 7 to reset, the limit installation between the first nut 3 and the rotating plate 6 is realized, the rotating plate 6 and the second nut 5 are connected in a rotating way, the nut is not loosened due to the fact that the rotating plate 6 and the second nut 5 are screwed independently, the structure is provided with an anti-loosening locking structure, the bolt connection is ensured to be firm, the bolt is prevented from loosening caused by alternating changes generated by external factors such as vibration, when the snap fastener 4 is pressed down, the spring 8 is contracted through the lock tongue 7, and the second nut 5 and the first nut 3 is screwed down on one side, and the structure is simple, and the use is convenient.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Finally, it should be pointed out that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. Lockbolt nut, including bolt main part (1), its characterized in that: the surface of bolt main part (1) has cup jointed first nut (3), and threaded connection between first nut (3) and the screw rod main part, one side of first nut (3) is equipped with swivel plate (6), one side that swivel plate (6) deviates from first nut (3) rotates and is connected with second nut (5), and threaded connection between second nut (5) and the bolt main part (1), and the screw thread opposite direction of second nut (5) and first nut (3), the inside sliding connection of first nut (3) has snap-fastener (4), the one end fixedly connected with spring bolt (7) of snap-fastener (4), and sliding connection between spring bolt (7) and the first nut (3), the centre gripping has spring (8) between spring bolt (7) and the first nut (3), draw-in groove (9) have been seted up in the corresponding position of spring bolt (7) to the inside of swivel plate (6).

2. A lockbolt nut as defined in claim 1, wherein: the lock tongue (7) is clamped with the clamping groove (9), and the lock tongue (7) is rotationally connected with the clamping groove (9).

3. A lockbolt nut as defined in claim 1, wherein: the clamping groove (9) is a circumferential groove, and the cross section of the clamping groove (9) is of an L-shaped structure.

4. A lockbolt nut as defined in claim 1, wherein: the section of the rotating plate (6) is of a convex structure, the inner diameter of the rotating plate (6) is larger than the outer diameter of the bolt main body (1), and the rotating plate (6) is sleeved on the surface of the bolt main body (1).

5. A lockbolt nut as defined in claim 1, wherein: the larger end of the bolt main body (1) is provided with a groove (2), and the section of the groove (2) is in a regular hexagon shape.

6. A lockbolt nut as defined in claim 1, wherein: the section of the bolt main body (1) is of a T-shaped structure, and the larger end of the bolt main body (1) is of a regular hexagon structure.

7. A lockbolt nut as defined in claim 1, wherein: the cross section of the lock tongue (7) is of an L-shaped structure, and one side of the lock tongue (7) is of an arc-shaped structure.