CN215830923U

CN215830923U - Double-nut anti-drop bolt assembly for mechanical configuration

Info

Publication number: CN215830923U
Application number: CN202121805404.XU
Authority: CN
Inventors: 崔海
Original assignee: Jiaxing Jinlong Auto Parts Co ltd
Current assignee: Jiaxing Jinlong Auto Parts Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-02-15
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a double-nut anti-drop bolt component for mechanical configuration, which comprises a bolt chute, wherein a sliding rod is arranged in the bolt chute in a fit sliding manner, the cross section of the sliding rod is square, the cross section of one end of the sliding rod is an inclined plane, a plurality of grooves are annularly formed in the outer wall of a second nut, a T-shaped threaded cylinder is arranged in a cavity in a fit sliding manner, the cross section of the bottom surface of the T-shaped threaded cylinder is a regular polygon, a plurality of second springs are annularly and fixedly connected to the bottom surface of the T-shaped threaded cylinder, the bottom end of each second spring is fixedly connected with the top surface of an outer ring of a bearing, each second spring is a tension spring, a rubber ring is annularly and fixedly embedded in the top surface of the cavity through glue, the cross section of the top surface of each rubber ring is a cambered surface, each rubber ring is arranged right below and matched with the annular groove, the wall thickness of the T-shaped threaded cylinder is 4mm-6mm, the sliding rod is made of alloy steel material, the sliding rod can be tightly matched with a bolt, the bolt can be prevented from loosening phenomenon, and the connection stability between equipment can be indirectly improved, the use requirement is met.

Description

Double-nut anti-drop bolt assembly for mechanical configuration

Technical Field

The utility model relates to the technical field of mechanical configuration, in particular to a double-nut anti-falling bolt assembly for mechanical configuration.

Background

The bolt is a mechanical part, a cylindrical threaded fastener matched with a nut, a fastener composed of a head part and a screw (a cylinder with an external thread) needs to be matched with the nut and is used for fastening and connecting two parts with through holes, the connection form is called bolt connection, if the nut is screwed off from the bolt, the two parts can be separated, so the bolt connection belongs to detachable connection, the bolt is widely applied in the mechanical configuration industry, the bolt needs to be matched with the nut for use under most conditions, and the bolt is easily loosened and falls off due to various reasons under the long-time use, so the bolt connection fails, potential safety hazards exist, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problems, the utility model provides a double-nut anti-falling bolt assembly for mechanical configuration.

The utility model is realized by the following technical scheme:

a double-nut anti-falling bolt assembly for mechanical configuration comprises a bolt, wherein a first nut is sleeved on the bolt in a threaded manner, double threads are arranged on the inner side wall of the first nut, an annular groove is formed in the bottom surface of the first nut, a cavity is sleeved on the bolt, the outer cross section of the cavity is a regular polygon, the cavity is arranged under the first nut, a bearing is fixedly connected in the cavity, a second nut is fixedly connected to the inner ring of the bearing, the outer cross section of the second nut is circular, the side wall of the second nut is attached to the inner side wall of the cavity, a plurality of sliding grooves are formed in the inner side wall of the cavity in an annular manner, sliding rods are arranged in the sliding grooves in an attaching and sliding manner, the cross section of each sliding rod is square, the cross section of one end of each sliding rod is an inclined plane, a plurality of grooves are formed in the outer wall of the second nut in an annular manner, one ends of the sliding rods are inserted into the grooves, the sliding rods are matched with the grooves, and first springs are arranged in the grooves, the first spring is compression spring, the laminating slides in the cavity and is equipped with T shape screw thread section of thick bamboo, T shape screw thread section of thick bamboo bottom surface cross-section is regular polygon, the cavity is worn out to T shape screw thread section of thick bamboo top, T shape screw thread section of thick bamboo bottom surface fixedly connected with spacing ring, spacing ring bottom surface and bearing top surface laminating, a plurality of second springs of T shape screw thread section of thick bamboo bottom surface annular fixedly connected with, second spring bottom and bearing outer ring top surface fixed connection, the second spring is extension spring, the cavity top surface has the rubber ring through the fixed embedding of glue annular, rubber ring top surface cross-section is the cambered surface, the rubber ring sets up under the ring channel and rather than the phase-match.

Preferably, the wall thickness of the T-shaped threaded barrel is 4mm-6 mm.

Preferably, the sliding rod is made of alloy steel materials.

Compared with the prior art, the utility model has the beneficial effects that: this device simple structure, the function is various, and the practicality is strong, through setting up first nut, cavity, bearing, second nut, slide bar, first spring, T shape thread cylinder, spacing ring, second spring and rubber ring can realize with closely cooperating of bolt, prevent that the bolt from taking place not hard up phenomenon to indirect stability of connecting between the improve equipment satisfies the user demand.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a partial top view of the structure of the present invention;

FIG. 3 is a bottom view of the structure of the present invention;

fig. 4 is a schematic diagram of the operation of the structure of the present invention.

In the figure: the device comprises a bolt 1, a first nut 2, a cavity 3, a bearing 4, a second nut 5, a sliding rod 6, a first spring 7, a T-shaped threaded cylinder 8, a limiting ring 9, a second spring 10, a rubber ring 11, an annular groove 2-1, a sliding groove 3-1 and a groove 5-1.

Detailed Description

The utility model is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, 2, 3 and 4, the double-nut anti-drop bolt assembly for mechanical configuration comprises a bolt 1, wherein a first nut 2 is sleeved on the bolt 1 in a threaded manner, double threads are arranged on the inner side wall of the first nut 2, an annular groove 2-1 is formed in the bottom surface of the first nut 2, a cavity 3 is sleeved on the bolt 1, the outer cross section of the cavity 3 is a regular polygon, the cavity 3 is arranged under the first nut 2, a bearing 4 is fixedly connected in the cavity 3, a second nut 5 is fixedly connected to the inner ring of the bearing 4, the outer cross section of the second nut 5 is circular, the side wall of the second nut 5 is attached to the inner side wall of the cavity 3, a plurality of sliding grooves 3-1 are formed in the inner side wall of the cavity 3 in an annular manner, a sliding rod 6 is slidably arranged in the sliding grooves 3-1, the cross section of the sliding rod 6 is square, and the cross section of one end of the sliding rod 6 is an inclined plane, a plurality of grooves 5-1 are annularly formed in the outer wall of the second nut 5, one end of the sliding rod 6 is inserted into the grooves 5-1, the sliding rod 6 is matched with the grooves 5-1, a first spring 7 is arranged in the grooves 5-1, the first spring 7 is a compression spring, a T-shaped threaded cylinder 8 is arranged in the cavity 3 in a fitting sliding manner, the cross section of the bottom surface of the T-shaped threaded cylinder 8 is a regular polygon, the top end of the T-shaped threaded cylinder 8 penetrates out of the cavity 3, a limiting ring 9 is fixedly connected to the bottom surface of the T-shaped threaded cylinder 8, the bottom surface of the limiting ring 9 is fitted with the top surface of the bearing 4, a plurality of second springs 10 are annularly and fixedly connected to the bottom surface of the T-shaped threaded cylinder 8, the bottom ends of the second springs 10 are fixedly connected to the top surface of the outer ring of the bearing 4, the second springs 10 are extension springs, and a rubber ring 11 is annularly and fixedly embedded into the top surface of the cavity 3 through glue, the cross section of the top surface of the rubber ring 11 is an arc surface, and the rubber ring 11 is arranged under the annular groove 2-1 and matched with the annular groove.

The wall thickness of the T-shaped threaded cylinder 8 is 4mm-6 mm.

The slide bar 6 is made of alloy steel materials.

The working principle is as follows: when mechanical configuration equipment needs to be connected and fixed, firstly, a bolt 1 penetrates through a threaded hole, then a first nut 2 is sleeved on the other end of the equipment, a worker rotates the bolt 1 and the first nut 2 through a wrench, the rotation direction of the bolt 1 is opposite to that of the first nut 2, the bolt 1 and the first nut 2 are connected and fixed with the equipment, after the bolt 1 and the first nut 2 can fix the equipment, then a cavity 3 is sleeved on the bolt 1, the cavity 3 drives a sliding rod 6 to rotate, the sliding rod 6 drives a second nut 5 to rotate, the second nut 5 gradually rotates to be sleeved on the bolt 1 in a threaded manner, the cavity 3 is continuously rotated, the cavity 3 indirectly drives the second nut 5 to rotate and move on the bolt 1, the second nut 5 drives a bearing 4 to move, the bearing 4 drives the cavity 3 to move, the cavity 3 drives a rubber ring 11 to move, the bearing 4 drives a limiting ring 9 to move, the limiting ring 9 drives the T-shaped threaded cylinder 8 to move, the cavity 3 drives the T-shaped threaded cylinder 8 to rotate, so that the T-shaped threaded cylinder 8 rotates, the T-shaped threaded cylinder 8 is gradually screwed into the first nut 2, the cavity 3 drives the rubber ring 11 to gradually move into the annular groove 2-1, after the bottom surface of the first nut 2 is attached to the top surface of the cavity 3, the cavity 3 stops moving upwards, the cavity 3 drives the rubber ring 11 to move and attach to the first nut 2 to be extruded and deformed, the cavity 3 continues to rotate at the moment, the cavity 3 indirectly drives the second nut 5 to rotate, the second nut 5 indirectly drives the cavity 3 to move upwards, the cavity 3 cannot move at the moment, so that the second nut 5 cannot rotate, the cavity 3 drives the slide bar 6 to rotate, the second nut 5 pushes the slide bar 6 to move and extrude the first spring 7, and the cavity 3 idles on the second nut 5, the cavity 3 drives the T-shaped threaded cylinder 8 to be screwed into the first nut 2 in a rotating mode to move, the T-shaped threaded cylinder 8 moves to pull the limiting ring 9 to move, the T-shaped threaded cylinder 8 moves to pull the second spring 10 to generate elastic deformation, when the T-shaped threaded cylinder 8 moves, the T-shaped threaded cylinder is attached to the inner top surface of the cavity 3 and stops moving, as shown in figure 4, the first nut 2 and the second nut 5 are matched with the bolt 1 to realize double fixation, when the first nut 2 is loosened, the first nut 2 needs to rotate, at the moment, the rubber ring 11 is extruded to be closely attached to the surface of the first nut 2, the friction force between the rubber ring 11 and the first nut 2 is increased, the first nut 2 is not convenient to rotate, the stability of the first nut 2 is increased, when the second nut 5 is loosened, the second nut 5 needs to rotate and move, the second nut 5 drives the sliding rod 6 to rotate, and the sliding rod drives the cavity 3 to rotate, because the slide rod 6 is arranged, only the cavity 3 can rotate in one direction, the cavity 3 drives the rubber ring 11 to rotate in the annular groove 2-1, the rubber ring 11 is extruded at the moment and is inconvenient to rotate, so that the stability of the second nut 5 is indirectly increased, on the other hand, the bearing 4 is always pulled by the tensile force of the second spring 10, the bearing 4 is fixedly connected with the cavity 3, so that the cavity 3 is tightly attached to the surface of the first nut 2, the cavity 3 is inconvenient to rotate, so that the stability of the second nut 5 is increased again, the stable connection between the bolt 1 and the first nut 2 and the second nut 5 is realized, the stability of the equipment connection is indirectly improved, the loosening phenomenon between the bolt 1 and the first nut 2 is effectively prevented, the arrangement of the first spring 7 and the second spring 10 plays an effective reset role, when the disassembly is needed, the cavity 3 is firstly twisted by a wrench, the cavity 3 indirectly drives the second nut 5 to rotate, meanwhile, the cavity 3 drives the T-shaped threaded cylinder to rotate and gradually separate from the first nut 2, the second spring 10 pulls the T-shaped threaded cylinder 8 to move, the T-shaped threaded cylinder 8 drives the limiting ring 9 to move and be attached to the top surface of the bearing 4, and after the second nut 5 is completely separated from the bolt 1, the first nut 2 is screwed through the wrench, so that the separation between the bolt 1 and the first nut 2 is realized.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mechanical configuration is with two nut anti-drop bolt subassemblies, includes bolt (1), its characterized in that: the bolt (1) is provided with a first nut (2) in a threaded sleeve manner, the inner side wall of the first nut (2) is provided with double threads, the bottom surface of the first nut (2) is provided with an annular groove (2-1), the bolt (1) is provided with a cavity (3) in a sleeved manner, the outer cross section of the cavity (3) is a regular polygon, the cavity (3) is arranged under the first nut (2), the cavity (3) is internally and fixedly connected with a bearing (4), the inner ring of the bearing (4) is fixedly connected with a second nut (5), the outer cross section of the second nut (5) is circular, the side wall of the second nut (5) is attached to the inner side wall of the cavity (3), the inner side wall of the cavity (3) is provided with a plurality of sliding grooves (3-1) in an annular manner, the sliding grooves (3-1) are internally and slidably provided with a sliding rod (6), and the cross section of the sliding rod (6) is square, the cross section of one end of the sliding rod (6) is an inclined plane, a plurality of grooves (5-1) are annularly formed in the outer wall of the second nut (5), one end of the sliding rod (6) is inserted into the grooves (5-1), the sliding rod (6) is matched with the grooves (5-1), first springs (7) are arranged in the grooves (5-1), the first springs (7) are compression springs, T-shaped threaded cylinders (8) are arranged in the cavities (3) in a fit sliding mode, the cross sections of the bottom surfaces of the T-shaped threaded cylinders (8) are regular polygons, the top ends of the T-shaped threaded cylinders (8) penetrate out of the cavities (3), limiting rings (9) are fixedly connected to the bottom surfaces of the T-shaped threaded cylinders (8), the bottom surfaces of the limiting rings (9) are fit with the top surface of a bearing (4), a plurality of second springs (10) are annularly and fixedly connected to the bottom surfaces of the T-shaped threaded cylinders (8), the bottom end of the second spring (10) is fixedly connected with the top surface of an outer ring of the bearing (4), the second spring (10) is an extension spring, a rubber ring (11) is fixedly embedded in the top surface of the cavity (3) through a glue ring, the cross section of the top surface of the rubber ring (11) is an arc surface, and the rubber ring (11) is arranged under the ring groove (2-1) and is matched with the ring groove.

2. A double nut drop preventing bolt assembly for mechanical collocation according to claim 1, wherein: the wall thickness of the T-shaped threaded cylinder (8) is 4mm-6 mm.

3. A double nut drop preventing bolt assembly for mechanical collocation according to claim 1, wherein: the sliding rod (6) is made of alloy steel materials.