CN218863047U - Anti-drop fastener - Google Patents

Abstract

The utility model discloses an anti-drop fastener includes screw rod and nut, the outer wall threaded connection of screw rod has the nut, and wherein anti-drop fastener still includes: the anti-loosening mechanism is arranged on the right side of the nut; the anti-loosening mechanism is used for preventing the nut from loosening after the nut is fixed. When this anti-drop fastener began to use, fixed the steel construction through the cooperation of screw rod and nut, then upwards promoted the ball through the inside that changes the piece and drive the ejector pin insert nut, made the ball extrude the rubber strip of grooved bar inner wall and produce frictional force and fix the rotary table to prevent that the nut from fixing the longer not hard up sign of production of back time, thereby solved the nut and sent to and lead to the insecure emergence danger of steel construction connection.

Description

Anti-drop fastener

Technical Field

The utility model relates to a fastener field, specific anti-drop fastener that says so.

Background

The fastener is a mechanical part which is used for fastening and connecting and has wide application, has wide use industries, including the industries of energy, electronics, electrical appliances, machinery, chemical engineering, metallurgy, dies, hydraulic pressure and the like, can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical engineering, instruments, supplies and the like, and is a mechanical basic part which has the most wide application;

at present the fastener is of a great variety, and the common screw rod and nut that are in life, but the phenomenon that the nut is not hard up appears easily when live screw rod and nut use at present and leads to fixed article to appear not hard up, leads to fixed insecure unnecessary danger of appearing.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model aims at providing an anti-drop fastener.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an anti-drop fastener includes screw rod and nut, the outer wall threaded connection of screw rod has the nut, and anti-drop fastener still includes: the anti-loosening mechanism is arranged on the right side of the nut; the anti-loosening mechanism is used for preventing the nut from loosening after the nut is fixed.

Furthermore, a plurality of cavities are formed in the nut.

Further, in order to prevent the nut from loosening, the loosening prevention mechanism includes: the number of the round balls is one, and the round balls are respectively arranged in the nut; the rotating block is in threaded connection with the outer wall of the screw rod and is arranged on the right side of the nut; the ejector rod is fixedly connected to the inner side of the rotating block; the groove rod is rotatably connected to the outer wall of the ejector rod; the rubber strip is fixedly connected with the inner wall of the groove rod; when the rotating block rotates and moves to the left side, the rotating block can drive the ejector rod to be inserted into the nut, so that the ball is pushed upwards.

Further, when the rotating block rotates to the left side at the outer wall of the screw rod, the rotating block can drive the ejector rod and the groove rod to move simultaneously, and then the round ball is pushed upwards through the inside of the ejector rod inserted into the nut.

Further, the inner wall of the rotating block is processed with threads.

Furthermore, a slot is formed in the right side of the nut.

The utility model has the advantages that: the utility model discloses set up when this anti-drop fastener begins to use, fix the steel construction through the cooperation of screw rod and nut, then drive the inside that the ejector pin inserted the nut through changeing the piece and upwards promote the ball, make the ball extrude the rubber strip of groove pole inner wall and produce frictional force and fix the commentaries on classics piece to prevent that the longer production of nut fixed back time is not hard up the sign, thereby solved the nut and sent to lead to the insecure emergence danger of steel construction connection.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is a detailed view of the link structure in the side view cross section of fig. 1.

Fig. 3 is a detail view of the connection structure of the front cross section of fig. 1.

Description of reference numerals: 1. the device comprises a screw, 2, a nut, 3, a locking mechanism, 301, a ball, 302, a rotating block, 303, a top rod, 304, a groove rod, 305 and a rubber strip.

Detailed Description

The invention will be further described with reference to specific examples, which are intended to illustrate the invention and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents also fall within the scope of the appended claims.

Referring to fig. 1, fig. 2 and fig. 3, the utility model discloses the schematic structure diagram, an anti-drop fastener includes screw rod 1 and nut 2, and the outer wall threaded connection of screw rod 1 has nut 2, and anti-drop fastener still includes: locking mechanism 3 sets up on the right side of nut 2, and wherein, locking mechanism 3 is used for preventing that nut 2 is not hard up after nut 2 is fixed, and a plurality of cavitys have been seted up to nut 2's inside.

Specifically, as shown in fig. 2 and 3, the anti-loosening mechanism 3 includes a round ball 301, a rotating block 302, a top rod 303, a slot rod 304 and a rubber strip 305;

in order to prevent that nut 2 from becoming flexible, the quantity of ball 301 is 6, set up the inside at nut 2 respectively, ball 301 can drive ball 301 rebound through the inside that ejector pin 303 inserted nut 2, change the piece 302 and can drive the temple that ejector pin 303 inserted nut 2, change piece 302 threaded connection at the outer wall of screw rod 1, and change the piece 302 setting on the right side of nut 2, the ejector pin 303 rigid coupling is in the inboard of changeing piece 302, groove pole 304 rotates the outer wall of connecting at ejector pin 303, the inner wall of rubber strip 305 rigid coupling at groove pole 304, wherein, can drive ejector pin 303 when changeing piece 302 pivoted and remove to the left side and upwards promote ball 301 in the inside that insert nut 2, the inner wall processing of changeing piece 301 has the screw thread, the inside slot of having seted up in right side of nut 2.

The utility model discloses when using, the user will need the fixed steel construction to fix through the cooperation of screw rod 1 and nut 2, then the user will change the left side laminating of piece 302 at the right side outer wall of screw rod 1, then rotate, the screw thread through changeing piece 302 inner wall changes piece 302 and the thread engagement of screw rod 1 outer wall and removes to the left side, drive ejector pin 303 during the removal and insert the inside of nut 2, the outer wall at nut 2 is laminated simultaneously to groove pole 304 when ejector pin 303 inserts nut 2 is inside, groove pole 304 and ejector pin 303 remove to the left side simultaneously, then upwards promote ball 301 through ejector pin 303, then push the inner wall that groove pole 304 was promoted to groove pole 301 with ball 301 and extrude rubber strip 305, the frictional force of extrusion production through ball 301 and rubber strip 305 carries out locking work to nut 2.

Claims (5)

1. The utility model provides an anti-drop fastener, includes screw rod (1) and nut (2), the outer wall threaded connection of screw rod (1) has nut (2), its characterized in that, anti-drop fastener still includes:

and the anti-loosening mechanism (3) is arranged on the right side of the nut (2).

2. A drop-off preventing fastener according to claim 1, wherein: a plurality of cavities are formed in the nut (2).

3. A drop-off preventing fastener according to claim 2, wherein: the loosening prevention mechanism (3) includes:

the number of the round balls (301) is 6, and the round balls (301) are respectively arranged in the nut (2);

the rotating block (302) is in threaded connection with the outer wall of the screw rod (1), and the rotating block (302) is arranged on the right side of the nut (2);

the ejector rod (303) is fixedly connected to the inner side of the rotating block (302);

the groove rod (304) is rotatably connected to the outer wall of the top rod (303);

and the rubber strip (305) is fixedly connected to the inner wall of the groove rod (304).

4. A drop-off preventing fastener according to claim 3, wherein: the inner wall of the rotating block (302) is processed with threads.

5. A drop-off preventing fastener according to claim 4, wherein: and a slot is formed in the right side of the nut (2).

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