CN221144971U

CN221144971U - Double-thread self-cutting anchor bolt

Info

Publication number: CN221144971U
Application number: CN202323358003.6U
Authority: CN
Inventors: 王璇; 冀子肖
Original assignee: Hebei Walter Metal Products Co ltd
Current assignee: Hebei Walter Metal Products Co ltd
Priority date: 2023-12-11
Filing date: 2023-12-11
Publication date: 2024-06-14
Anticipated expiration: 2033-12-11

Abstract

The utility model relates to the technical field of anchor bolts and discloses a double-thread self-cutting anchor bolt which comprises a bolt rod, wherein the upper end of the bolt rod is fixedly connected with a gasket, the upper end of the gasket is fixedly connected with a nut, the upper end of the nut is provided with a top groove, the lower end of the gasket is provided with anti-return teeth, the outer side of the bolt rod is provided with ring teeth, and the outer side of the bolt rod is provided with wide threads. This double-thread is from cutting into formula crab-bolt has set up the roof groove that the cross-section is hexagonal structure, and the crab-bolt is twisted to hexagonal nut accessible spanner simultaneously, and accessible instrument twists the crab-bolt, and it is comparatively convenient to use, twists the crab-bolt in the preformed hole on wall or ground during the use, until the gasket contacts with the contact surface, ring tooth and pore wall contact, prevents back tooth and contact surface, when the crab-bolt receives the torsion of opposite direction or when receiving the vibration, ring tooth and prevents back tooth and bite contact area, still provides stable and reliable anchoring performance under the severe condition.

Description

Double-thread self-cutting anchor bolt

Technical Field

The utility model relates to the technical field of anchor bolts, in particular to a double-thread self-cutting anchor bolt.

Background

An anchor bolt is a device for securing objects to a base material (e.g., concrete, masonry, rock, etc.) and is typically made of metal, with threads or other special designs that enable it to securely attach or anchor objects, providing secure support and securement, and a double threaded anchor bolt is a specially designed anchor bolt that is commonly used to attach elements in structures, particularly in construction and civil engineering.

Chinese patent publication No.: CN 210660952U, disclosing: the utility model provides a hexagonal flange concrete screw thread is from cutting crab-bolt, this hexagonal flange concrete screw thread is from cutting crab-bolt through setting up sharp-pointed from cutting anchor tail structure, can not need not auxiliary processing, can directly drill on the concrete member, tapping, locking, practices thrift operating time by a wide margin, but this crab-bolt does not set up anchor structure, and is relatively poor with the anchor effect of hole site, can not provide stable and reliable anchoring performance under the harsh condition such as receiving vibrations.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a double-thread self-cutting-in anchor bolt, which can effectively solve the problems that in the prior art, an anchor bolt is not provided with an anchoring structure, the anchoring effect with a hole site is poor, and stable and reliable anchoring performance cannot be provided under severe conditions such as vibration and the like.

The technical scheme adopted by the utility model is as follows: the utility model provides a double thread is from cutting into formula crab-bolt, includes the bolt pole, the upper end fixed connection gasket of bolt pole, the upper end fixed connection nut of gasket, the roof groove has been seted up to the upper end of nut, the lower extreme of gasket is provided with prevents back the tooth, the outside of bolt pole is provided with ring tooth, the outside of bolt pole is provided with wide screw thread, the outside of bolt pole is provided with thin screw thread, the notch has been seted up in the outside of wide screw thread, the lower extreme of bolt pole is provided with the rod end, the outside of rod end is provided with spacing tooth, the transversal symmetry "V" style of calligraphy structure or asymmetric "V" style of calligraphy structure of notch, the internal angle of notch is 90 ~ 130.

Preferably, the bolt, the gasket and the nut are manufactured by adopting an integral casting molding process, and the bolt, the gasket and the nut are manufactured by adopting a galvanization process on the outer surface of a carbon steel material.

Through the technical scheme, the bolt, the gasket and the nut are manufactured by adopting an integral casting molding process, have firm structure, are suitable for concrete, solid masonry, hollow bricks, aerated concrete and other similar occasions, are manufactured by adopting a galvanized process on the outer surface of a carbon steel material, and have strong rust resistance and are more practical.

Preferably, the cross section of the top groove is in a hexagonal structure.

Through above-mentioned technical scheme, set up the cross-section and be the roof groove of hexagonal structure, accessible hexagonal spanner or electric tool twist the crab-bolt.

Preferably, the anti-return teeth are distributed in a radial structure by taking the center of a gasket as the axis, and the ring teeth are arranged on the upper part of the outer side of the bolt.

Through above-mentioned technical scheme, set up and prevented back tooth and ring tooth, screw into the stock hole on wall or ground with the crab-bolt during the use, until the gasket contacts with the contact surface, ring tooth and contact surface contact, prevent back tooth and contact surface contact, when the crab-bolt receives the torsion of opposite direction or when receiving vibration, ring tooth and prevent back tooth snap-in contact area, prevent that the crab-bolt breaks away from, still provide stable and reliable anchor performance under the severe condition, make bolt pole and pore wall leave the space simultaneously, the gasket leaves the space with the contact surface, avoid the card to die.

Preferably, the wide thread is in a spiral structure, and the thin thread is in a spiral structure.

Through above-mentioned technical scheme, set up helical structure wide screw thread and thin screw thread, have outstanding fastening effect.

Preferably, the included angle between two adjacent notches is 72-90 degrees, and the notches are arranged at the lower part of the outer side of the wide thread.

Through above-mentioned technical scheme, set up the notch, after the crab-bolt anchor preformed hole, the notch makes crab-bolt and preformed hole leave the space, avoids the crab-bolt card to die.

Preferably, the lower end of the rod end is in a furled round table structure.

Through above-mentioned technical scheme, the lower extreme of rod end is the round platform structure of drawing in the form in order, does not influence wide screw thread 8 and thin screw thread 9 and pore wall contact.

Compared with the prior art, the utility model provides a double-thread self-cutting-in anchor bolt, which has the following beneficial effects:

1. The double-thread self-cutting anchor bolt is characterized in that the bolt rod, the gasket and the nut are manufactured by adopting an integral casting molding process, the structure is firm, the double-thread self-cutting anchor bolt is suitable for concrete, solid masonry, hollow bricks, aerated concrete and other similar occasions, the bolt rod, the gasket and the nut are manufactured by adopting a carbon steel material outer surface galvanizing process, the rust resistance is high, the double-thread self-cutting anchor bolt is practical, a top groove with a hexagonal section is arranged, the anchor bolt can be screwed by a spanner, and the anchor bolt can be screwed by a plurality of tools, so that the double-thread self-cutting anchor bolt is convenient to use;

2. This double-thread is from cutting into formula crab-bolt, set up and prevented back tooth and ring tooth, screw into the preformed hole on wall or ground with the crab-bolt during the use, until the gasket contacts with the contact surface, ring tooth and pore wall contact, prevent back tooth and contact surface contact, when the crab-bolt receives the torsion of opposite direction or receive the vibration, ring tooth and prevent back tooth snap-in contact region, it breaks away from to prevent the crab-bolt, still provide stable and reliable anchor performance under the severe condition, make bolt pole and pore wall leave the space simultaneously, the gasket leaves the space with the contact surface, avoid the card to die, set up helical structure wide screw and fine screw, have outstanding fastening effect and certain cutting effect, after the preformed hole is anchored to the crab-bolt, the notch makes crab-bolt and preformed hole leave the space, avoid the crab-bolt card to die, when the crab-bolt anchor, ring tooth and prevent back tooth cooperate, break away from the preformed hole when avoiding the crab-bolt to receive vibrations, still keep anchor performance under adverse condition.

Drawings

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

FIG. 2 is a schematic diagram of a second perspective structure of the present utility model;

FIG. 3 is an enlarged schematic view of the nut and washer of the present utility model;

FIG. 4 is an enlarged view of the gasket and anti-backlash mechanism of the present utility model;

fig. 5 is an enlarged schematic view of the end bar according to the present utility model.

Wherein: 1. a bolt; 2. a gasket; 3. a screw cap; 4. a top groove; 6. tooth return prevention; 7. ring teeth; 8. a wide thread; 9. fine threads; 10. a notch; 11. a rod end.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Embodiment one: as shown in figures 1-5, the double-thread self-cutting-in anchor bolt provided by the utility model comprises a bolt rod 1, wherein the upper end of the bolt rod 1 is fixedly connected with a gasket 2, the upper end of the gasket 2 is fixedly connected with a nut 3, the upper end of the nut 3 is provided with a top groove 4, the lower end of the gasket 2 is provided with a back-tooth preventing 6, the outer side of the bolt rod 1 is provided with a ring tooth 7, the outer side of the bolt rod 1 is provided with a wide thread 8, the outer side of the bolt rod 1 is provided with a fine thread 9, the outer side of the wide thread 8 is provided with a notch 10, the lower end of the bolt rod 1 is provided with a rod end 11, the cross section of the notch 10 is in a symmetrical V-shaped structure or an asymmetrical V-shaped structure, and the inner included angle of the notch 10 is 90-130 degrees.

Specifically, the bolt rod 1, the gasket 2 and the nut 3 are manufactured by adopting an integral casting molding process, and the bolt rod 1, the gasket 2 and the nut 3 are manufactured by adopting a zinc plating process on the outer surfaces of carbon steel materials. The bolt rod 1, the gasket 2 and the nut 3 are manufactured by adopting an integral casting molding process, have a firm structure, are suitable for concrete, solid masonry, hollow bricks, aerated concrete and other similar occasions, and have strong rust resistance and are more practical because the bolt rod 1, the gasket 2 and the nut 3 are manufactured by adopting a carbon steel material outer surface galvanizing process.

Specifically, the cross section of the top groove 4 has a hexagonal structure. The advantage is, has set up the roof groove 4 that the cross-section is hexagonal structure, and hexagonal nut 3 accessible spanner twists the crab-bolt, and accessible multiple instrument twists the crab-bolt, uses comparatively conveniently.

Specifically, the anti-return teeth 6 are distributed in a radial structure by taking the center of the gasket 2 as the axis, and the ring teeth 7 are arranged on the upper part of the outer side of the bolt rod 1. The anchor bolt is screwed into the reserved hole on the wall or the ground until the gasket 2 is contacted with the contact surface, the ring tooth 7 is contacted with the hole wall, the ring tooth 6 is contacted with the contact surface, when the anchor bolt is subjected to torsion in the opposite direction or vibration, the ring tooth 7 and the ring tooth 6 are prevented from biting the contact area, the anchor bolt is prevented from being separated, stable and reliable anchoring performance is still provided under severe conditions, a gap is reserved between the bolt rod 1 and the hole wall, and the gap is reserved between the gasket 2 and the contact surface, so that the anchor bolt is prevented from being blocked.

Embodiment two: as shown in fig. 2-5, as an improvement over the previous embodiment.

Specifically, the wide thread 8 has a spiral structure, and the thin thread 9 has a spiral structure. The advantage is that set up heliciform structure wide screw thread 8 and thin screw thread 9, has outstanding fastening effect.

Specifically, the included angle between two adjacent notches 10 is 72-90 degrees, and the notches 10 are arranged at the lower part of the outer side of the wide thread 8. The advantage is, has set up notch 10, and after the crab-bolt anchor preformed hole, notch 10 makes crab-bolt and preformed hole leave the space, avoids the crab-bolt card to die.

Specifically, the lower end of the rod end 11 is in a cone-shaped truncated cone structure. The advantages that the lower end of the rod end 11 is in a folded round platform structure, and the contact between the wide thread 8 and the thin thread 9 and the hole wall is not affected.

Working principle: the ejector slot 4 with the hexagonal cross section is arranged, the anchor bolt is screwed by the hexagonal nut 3 through a spanner, the anchor bolt is screwed by a plurality of tools, the use is more convenient, the anchor bolt is screwed into a reserved hole on the wall or the ground until the gasket 2 is contacted with the contact surface, the ring teeth 7 are contacted with the hole wall, the anti-return teeth 6 are contacted with the contact surface, when the anchor bolt is subjected to torsion in the opposite direction or vibration, the ring teeth 7 and the anti-return teeth 6 bite the contact area, the anchor bolt is prevented from being separated from the reserved hole when being vibrated, the anchoring performance is still kept under severe working conditions, the notch 10 is arranged, and after the anchor bolt is anchored in the reserved hole, the notch 10 enables the anchor bolt and the reserved hole to be provided with a gap, so that the anchor bolt is prevented from being blocked.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double thread is from cutting into formula crab-bolt, is including bolt pole (1), its characterized in that: the upper end fixed connection gasket (2) of bolt (1), the upper end fixed connection nut (3) of gasket (2), roof groove (4) have been seted up to the upper end of nut (3), the lower extreme of gasket (2) is provided with prevents back tooth (6), the outside of bolt (1) is provided with ring tooth (7), the outside of bolt (1) is provided with wide screw thread (8), the outside of bolt (1) is provided with fine screw thread (9), notch (10) have been seted up in the outside of wide screw thread (8), the lower extreme of bolt (1) is provided with rod end (11), the transversal symmetry "V" style of calligraphy structure or asymmetric "V" style of calligraphy structure of personally submitting of notch (10), the internal angle of notch (10) is 90 ~ 130.

2. A double-threaded self-plunging anchor as defined in claim 1, wherein: the bolt rod (1), the gasket (2) and the screw cap (3) are manufactured by adopting an integral casting molding process, and the bolt rod (1), the gasket (2) and the screw cap (3) are manufactured by adopting a carbon steel material outer surface galvanizing process.

3. A double-threaded self-plunging anchor as defined in claim 1, wherein: the section of the top groove (4) is in a hexagonal structure.

4. A double-threaded self-plunging anchor as defined in claim 1, wherein: the anti-return teeth (6) are distributed in a radial structure by taking the center of the gasket (2) as the axis, and the ring teeth (7) are arranged on the upper part of the outer side of the bolt rod (1).

5. A double-threaded self-plunging anchor as defined in claim 1, wherein: the wide thread (8) is in a spiral structure, and the thin thread (9) is in a spiral structure.

6. A double-threaded self-plunging anchor as defined in claim 1, wherein: the included angle between two adjacent notches (10) is 72-90 degrees, and the notches (10) are arranged at the lower part of the outer side of the wide thread (8).

7. A double-threaded self-plunging anchor as defined in claim 1, wherein: the lower end of the rod end (11) is in a folded round platform structure.