CN102606608A - Anti-off bolt - Google Patents

Abstract

The invention discloses an anti-loosening bolt, which belongs to the technical field of mechanical parts for connection. An anti-off card slot (7) is provided on the threaded rod (2), and an anti-off card file (11) is provided at the front end of the anti-off card slot (7), near the free end of the thread (3); The slot (7) is provided with an anti-off card (4), and the bottom of the anti-off card (4) is provided with an anti-off card shrapnel (6). It is an elastic metal sheet, and one end of it is connected with the bottom of the anti-off card (4). One body, the other end is a free end, and there is a gap between the anti-loosening shrapnel (6) and the bottom of the anti-loosening card (4). The anti-loosening bolts of the present invention are designed to place anti-loosening card slots according to different purposes. When the nut is tightened on the threaded rod, the anti-loosening card will automatically pop up to prevent the nut from loosening outward. When the bolt needs to be disassembled, the external force will press the anti-loosening card. , the nut can be unscrewed.

Description

Anti-loosening bolt

technical field

The invention relates to an anti-loosening bolt, which belongs to the technical field of mechanical parts for connection. 

Background technique

Bolts are mechanical parts for connection. There are threads on the round rod and nuts, which can be disassembled. Known bolts can fix two parts in a machine after the nuts are tightened. However, after fixing for a certain period of time, due to the effect of external force, the nut often becomes loose or even falls off. Such as the car basket in front of the bicycle handlebar, over time, its fixing screws often fall off, making it lose its corresponding function. For the anti-falling off of the bolt, there is a known hole at one end of the round rod. When the nut is screwed on, the card is inserted to prevent it from falling off. However, this anti-off method needs to be equipped with a card, which is not beautiful. It is also inconvenient to disassemble. So it is necessary to invent a kind of anti-off bolt that is beautiful and convenient to disassemble. the

Contents of the invention

In order to prevent the nut from loosening or falling off under the action of external force for a long time, and the technical problem that the known bolts are inconvenient to disassemble, the purpose of the present invention is to provide an anti-loosening bolt. When the nut is tightened on the threaded rod, the anti-loosening card pops up to prevent the nut from loosening outward. When the bolt needs to be disassembled, press the anti-loosening card with external force to unscrew the nut. The whole anti-loosening bolt can be easily disassembled, which is convenient to manufacture and has strong practicability. At the same time, the design of the anti-loosening card slot makes most of the anti-loosening cards that block the nut loose are hidden in the anti-loosening card slot in the threaded rod, and the anti-loosening card groove is enlarged. Improve the aesthetics of the bolts.

The technical solution adopted by the present invention to solve its technical problems is:

An anti-off bolt, comprising a threaded end cap 1, a threaded rod 2 and a thread 3, one end of the threaded rod 2 is integrated with the threaded end cap 1, the other end is provided with a thread 3, and the threaded rod 2 is also provided with an anti-off bolt Draw-in slot 7, at the front end of the anti-off draw-in slot 7, an anti-off clip 11 is provided near one end of the free end of the screw thread 3; the anti-off card 4 is provided in the anti-off draw-in slot 7, and the afterbody of the anti-off card 4 is provided with The anti-off card tooth 10, the anti-off card tooth 10 position of the anti-off card 4 is arranged on the outside of the anti-off card groove 7 and the vertical grain bar 2 long axis; Fixed between the card-off shaft 5 and the anti-off card shaft hole 9; the bottom of the anti-off card 4 is provided with an anti-off card shrapnel 6, which is an elastic metal sheet, and one end is integrated with the bottom of the anti-off card 4, and the other end is At the free end, there is a gap between the anti-off card elastic piece 6 and the bottom of the anti-off card 4 .

The anti-off card 4 is a cuboid sheet as a whole.

The threaded end cap 1 is cylindrical, hexagonal, or hemispherical, and a font or cross-shaped groove is arranged in the middle of its outer end surface, which is integrated with the threaded rod 2 .

The anti-off clamping shaft 5 and the anti-off clamping shaft hole 9 are fixed with bolts.

The beneficial effect of the present invention is that the anti-loosening bolts are designed to place anti-loosening card slots according to different purposes. When the nut is tightened on the threaded rod, the anti-loosening card will automatically pop up to prevent the nut from loosening outward. When the bolt needs to be disassembled, the external force Press the anti-loosening card to unscrew the nut. the

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural view of the anti-loosening bolt of the present invention.

Fig. 2 is a longitudinal sectional structural schematic diagram of the anti-loosening bolt threaded rod and the anti-loosening card of the present invention.

In the figure 1. Threaded end cap, 2. Threaded rod, 3. Thread, 4. Anti-off card, 5. Anti-off card shaft, 6. Anti-off card shrapnel, 7. Anti-off card slot, 8. Nut, 9. Anti-off card shaft hole, 10. anti-off card teeth, 11. anti-off card gear. the

Detailed ways

The anti-off bolt consists of a threaded end cap 1, a threaded rod 2, a thread 3, an anti-off card 4, an anti-off card shaft 5, an anti-off card shrapnel 6, an anti-off card slot 7, a nut 8, an anti-off card shaft hole 9, an anti-off card Unlocking tooth 10, anti-off clamping gear 11 is formed. Pattern end cap 1 is cylindrical, hexagonal, hemispherical, etc., and there can be a font or a cross-shaped groove in the middle of its outer end surface, which is integrated with pattern bar 2. The threaded rod 2 is the main body of the bolt, one end is integrated with the threaded end cap 1, and the other end has a thread 3, which allows the nut 8 to be screwed on it to play a role of fixed connection, and the middle part passes through the objects to be connected. After the nut 8 is tightened, the objects to be connected can be tightly connected together. At the specific position of threaded rod 2, according to the size and specific requirements of the bolt, an anti-off card slot 7 is designed, and anti-off card 4, anti-off card shaft 5 and anti-off card shrapnel 6 are installed in the anti-off card slot 7. The anti-off card 4 is a cuboid piece as a whole, and the notch at the anti-off slot 7 is called the anti-off tab 10, and the anti-off tab 10 is vertical to the long axis of the bar 2 when the anti-off tab 4 exposes the anti-off slot 7 , so that the anti-off card 4 can prevent the nut 8 from loosening or slipping more tightly. The anti-off card shaft 5 is the axis that the anti-off card 4 rotates when the anti-off card 4 pops up inside and outside the anti-off card slot 7 or is pressed in. During installation, the anti-off card 4 is put into the anti-off card slot 7, from the anti-off After penetrating the anti-off card shaft 5 in the card shaft hole 9, the anti-off card shaft hole 7 outer edge spot welding can be anti-off card shaft 5 welded in the anti-off card shaft hole 9 li. The anti-off card groove 7 above the anti-off card shaft 5 has a section of top wall, which is called the anti-off card gear 11. Next, the anti-off card 4 is limited in the anti-off slot 7 . The anti-off card shrapnel 6 is an elastic metal sheet connected to the bottom of the anti-off card 4, one end of which is integrated with the bottom of the anti-off card 4, and the other end is free, and has a certain distance from the bottom of the anti-off card 4, so that the anti-off card After 4 is pressed into the anti-off card slot 7, a certain potential energy is accumulated. When the nut 8 is tightened to expose the anti-off card 4 and the external force pressing the anti-off card 4 disappears, the anti-off card spring 6 will remove the anti-off card 4 from the anti-off card. pop out from slot 7.

Claims (4)

1. anticreep bolt; Comprise line end cap (1), rasp bar (2) and screw thread (3); Fuse at rasp bar (2) one ends and line end cap (1), the other end is provided with screw thread (3), it is characterized in that: on rasp bar (2), also be provided with anticreep draw-in groove (7); Front end in anticreep draw-in groove (7), a free-ended end place is provided with anticreep card shelves (11) near screw thread (3); Be provided with anticreep card (4) in the anticreep draw-in groove (7), be provided with anticreep latch (10) at the afterbody of anticreep card (4), anticreep latch (10) position of anticreep card (4) is arranged on outer and vertical rasp bar (2) major axis of anticreep draw-in groove (7); Front end at anticreep card (4) is provided with anticreep axis hole (9), and is fixing between anticreep axis (5) and the anticreep axis hole (9); Anticreep card (4) bottom is provided with anticreep card shell fragment (6), and it is flexible tinsel, and one of which end and anticreep card (4) bottom fuse, and the other end is a free end, and anticreep card shell fragment (6) is provided with at interval with anticreep card (4) bottom.

2. anticreep bolt according to claim 1 is characterized in that: described anticreep card (4) is whole to be the cuboid sheet.

3. anticreep bolt according to claim 1 is characterized in that: described line end cap (1) is cylindrical, hexagon, hemisphere, and its middle, exterior edge face is provided with yi word pattern or cross groove, fuses with rasp bar (2).

4. anticreep bolt according to claim 1 is characterized in that: anticreep axis (5) is used bolt with anticreep axis hole (9).

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