CN205677945U - A nut used with double anti-loosening bolts - Google Patents

Abstract

The utility model discloses a nut with dual locking bolt adapted that moves. The main characteristics are that: the right end of the nut body is provided with a spherical body of an integral structure, the right end of the spherical body is provided with 4-12 uniformly distributed inclined clamping grooves communicated with a threaded hole of the nut body, the inclined slope of each inclined clamping groove is the same as the taper of a tapered fine-tooth threaded hole of the double anti-loosening bolt, the width of each inclined clamping groove is slightly larger than the width of an expansion block of the double anti-loosening bolt, and a stop block is arranged between every two adjacent inclined clamping grooves; the wall thicknesses of the upper end and the lower end of the nut body are respectively provided with a through hole, a pin is arranged in the through hole, the outer diameter of the pin is in transition fit with the through hole, and the length of the pin is larger than the thickness of the wall thicknesses of the upper end and the lower end of the nut body. The utility model discloses with "dual locking bolt" adapted, make "dual locking bolt" be in the utility model discloses a threaded hole neither can rotate can not be not hard up at the axial float again, more can not reduce the trouble emergence of machine equipment, vehicle etc. and ensure to use normally.

Description

A nut used with double anti-loosening bolts

technical field

The utility model relates to the technical field of fasteners, in particular to a nut matched with double anti-loosening bolts.

Background technique

For existing machinery, equipment, vehicles, etc., the lock nuts will gradually loosen after a period of use, resulting in loosening of the lock bolts, which will affect the performance of the machine, or malfunction and affect normal use.

On June 19, 2016, the inventor submitted a utility model patent application called "double anti-loosening bolt", the application number is: 201620595417.1, the main features are: the right end of the bolt head is provided with an integral structure of the ring, the ring The ring-shaped right end surface between the outer diameter of the screw and the outer diameter of the integrated screw is provided with a circle of evenly distributed pawls in the radial direction. When workpiece A and workpiece B are pressed tightly on the left end surface of workpiece B; the center line of the right end of the screw rod is provided with a taper fine thread hole, and a hexagon head taper fine thread bolt is arranged in the taper fine thread hole, and the hexagon head taper is fine The tapered external thread of the threaded bolt is connected with the tapered internal thread of the tapered fine thread hole; the wall thickness between the tapered fine thread hole and the outer diameter of the screw rod is provided with 4 to 8 evenly distributed opening grooves along the radial direction , the left and right lengths of the opening slots are 2 to 5mm shorter than the depth of the taper internal thread of the taper fine thread hole, and an expansion block is arranged between the two opening slots, and the left end of the expansion block is integrally connected with the right end of the screw; the expansion block When the hexagon head taper fine tooth bolt is screwed into the taper fine thread threaded hole, it can expand outwards, and the outer end surface of the expansion block is pressed against the periphery of the threaded hole on the right end surface of the workpiece A. The utility model has a double anti-loosening effect, so that the bolts cannot rotate in the opposite direction and move in the axial direction, so that the locked bolts will not loosen, reduce the failure of machinery, equipment, vehicles, etc., and ensure normal use. There is still room for improvement in preventing bolt loosening when nuts are connected.

Utility model content

The technical problem to be solved by the utility model is: to provide a nut used with double anti-loosening bolts to solve the problem of bolt loosening, to reduce failures of machinery, equipment, vehicles, etc., and to ensure normal use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a nut that includes a nut body that is used with double anti-loosening bolts. ～12 evenly distributed inclined slots connected with the threaded holes of the nut body, the slope of the inclined slots is the same as the taper of the double anti-loosening bolts, and the width of the inclined slots is slightly larger than that of the double anti-loosening bolts The width of the expansion block of the bolt is provided with a stopper between two adjacent oblique slots.

The wall thickness of the upper and lower ends of the nut body is respectively provided with a through hole, and a pin is arranged in the through hole. thickness.

The utility model has the advantages that: since the right end of the nut body is provided with an integrated spherical body, the right end of the spherical body is provided with 4 to 12 evenly distributed oblique slots communicating with the threaded holes of the nut body. The inclination of the bevel is the same as that of the taper fine thread hole of the double anti-loosening bolt, the width of the oblique slot is slightly larger than the width of the expansion block of the double anti-loosening bolt, and there is a stopper between two adjacent oblique slots . When the utility model is used with the "double anti-loosening bolt" to lock the two workpieces together, the hexagonal head taper fine-thread bolt in the taper fine-thread thread hole of the "double anti-loosening bolt" is pressed against the taper fine thread hole. In the threaded hole, the expansion block between the two adjacent opening grooves of the "double anti-loosening bolt" expands outward, and the expansion block of the "double anti-loosening bolt" that expands outwards snaps into the oblique bolt of the utility model. In the card slot, the outer end surface of the expansion block of the "double anti-loosening bolt" is pressed against the slope of the inclined card slot of the present invention, so that the "double anti-loosening bolt" generates axial tension, and the "double anti-loosening bolt" It cannot move in the axial direction; the two sides of the expansion block of the "double anti-loosening bolt" are pressed on the side of the stopper between two adjacent oblique slots of the utility model, so that the "double anti-loosening bolt" Clamped together with the utility model, the "double anti-loosening bolt" cannot rotate in the threaded hole of the utility model, so that the locked "double anti-loosening bolt" will not loosen, reducing the failure of machinery, equipment, vehicles, etc. , make sure to use normal purpose.

Because the wall thickness of the upper and lower ends of the nut body is respectively provided with a through hole, the through hole is provided with a pin, and the outer diameter of the pin is transitionally matched with the through hole, and the length of the pin is greater than the thickness of the wall thickness of the upper and lower ends of the nut body. After finishing the above work, knock the pin with an iron hammer, press the pin head at one end of the threaded hole of the present utility model into the screw thread of the "double anti-loosening bolt", and press the upper and lower outer sides of the nut body of the present utility model The pin head of the end face is riveted in the through hole of the utility model, further making the "double anti-loosening bolt" neither rotate nor move in the axial direction in the threaded hole of the utility model, further making the locked "double anti-loosening bolt" The "anti-loosening bolt" will not loosen, further reducing the failure of machinery, equipment, vehicles, etc., and ensuring normal use.

The utility model is used for the tight and firm connection of two workpieces without heating the nuts or freezing the bolts, is simple and convenient, not only saves costs, but also improves work efficiency.

Description of drawings

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is a specific structural schematic diagram of a nut matched with double anti-loosening bolts proposed according to the utility model.

Fig. 2 is a K-direction view of the specific structure of a nut used with double anti-loosening bolts according to the utility model.

Fig. 3 is a diagram of the specific structure and working state of a nut matched with double anti-loosening bolts according to the utility model.

In the figure: 1-nut body, 2-through hole, 3-pin, 4-spherical body, 5-inclined slope, 6-oblique slot, 7-threaded hole, 8-block.

detailed description

The specific device details and working conditions proposed according to the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in the accompanying drawings, the details of the specific device proposed by the utility model are: a nut that includes a nut body 1 that is used with double anti-loosening bolts. The right end of the nut is provided with 4 to 12 evenly distributed oblique slots 6 communicating with the threaded holes 7 of the nut body 1, and the oblique surface inclination 5 of the oblique slots 6 is the same as the taper of the double anti-loosening bolts. The width of the oblique locking groove 6 is slightly larger than the width of the expansion block of the double anti-loosening bolt, and a stopper 8 is arranged between two adjacent oblique locking grooves 6 .

The wall thickness of the upper and lower ends of the nut body 1 is respectively provided with a through hole 2, and a pin 3 is arranged in the through hole 2. The thickness of the lower wall thickness.

The working process of the specific device proposed by the utility model is: when the utility model is used with the "double anti-loosening bolt" to lock the two workpieces together, then the taper fine tooth thread hole of the "double anti-loosening bolt" The hexagonal head taper fine thread bolt is pressed tightly in the taper fine thread thread hole, so that the expansion block between the two adjacent opening slots of the "double anti-loosening bolt" expands outward, and the "double anti-loosening bolt" expanded outward "The expansion block of the utility model is snapped into the inclined slot of the utility model, and the outer end surface of the expansion block of the "double anti-loosening bolt" is pressed against the slope of the inclined slot of the utility model, so that the "double anti-loosening bolt" produces a shaft The "double anti-loosening bolt" cannot move in the axial direction; the two sides of the expansion block of the "double anti-loosening bolt" are pressed against the stopper between the two adjacent oblique slots of the utility model On the side of the utility model, the "double anti-loosening bolt" is clamped together with the utility model, and the "double anti-loosening bolt" cannot rotate in the threaded hole of the utility model, so that the locked "double anti-loosening bolt" will not loosen .

Hit the pin with an iron hammer, press the pin head at one end of the threaded hole of the utility model into the screw thread of the "double anti-loosening bolt", and rivet the pin heads at the upper and lower outer end surfaces of the nut body of the utility model In the through hole of the utility model, "double anti-loosening bolt" can neither rotate nor move in the axial direction in the threaded hole of the utility model, so that the locked "double anti-loosening bolt" will not loosen.

Claims (1)

1. A nut for use with double anti-loosening bolts, including a nut body (1), characterized in that: the right end of the nut body (1) is provided with a spherical body (4) with an integrated structure, and the right end of the spherical body (4) There are 4 to 12 evenly distributed slanted slots (6) connected to the threaded holes (7) of the nut body (1), the inclination (5) of the slanted slots (6) and the taper of the double anti-loosening bolts The taper of the fine threaded holes is the same, the width of the inclined slot (6) is slightly larger than the width of the expansion block of the double anti-loosening bolt, and a stopper (8) is arranged between two adjacent inclined slots (6); The wall thickness of the upper and lower ends of the nut body (1) is respectively provided with a through hole (2), the through hole (2) is provided with a pin (3), and the outer diameter of the pin (3) is in line with the through hole (2). ) transition fit, the length of the pin (3) is greater than the wall thickness of the upper and lower ends of the nut body (1).