CN216742348U

CN216742348U - Fastening anchor

Info

Publication number: CN216742348U
Application number: CN202220482476.3U
Authority: CN
Inventors: 沈敏军; 池启洪; 张�杰
Original assignee: Zhejiang Baide Precision Hardware Co ltd
Current assignee: Zhejiang Baide Precision Hardware Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-14
Anticipated expiration: 2032-03-04

Abstract

The utility model relates to a fastening anchoring piece, which comprises an anchoring piece body, wherein the upper end of the anchoring piece body is provided with an external thread and a locknut, and the fastening anchoring piece also comprises: a shaft portion provided with a coming-off prevention unit; the reducing part is sleeved with an expansion piece; the conical part is connected with the reducing part; the shaft part is connected with the lower end of the anchor body, the reducing part is connected with the lower end of the shaft part, and the tip of the conical part is connected with the lower end of the reducing part.

Description

Fastening anchor

Technical Field

The present invention relates to a fastening anchor.

Background

In contrast to a drive-in anchor and a fastening anchor, in which the drive-in anchor is inserted into a cut hole of a concrete body and then the cylindrical body, sleeve or mandrel is driven into the cut hole to expand an expanding blade and press-contact the expanding blade against the concrete body, a fastening anchor is inserted into a cut hole of the concrete body and then the anchor is fastened with a nut to draw a tapered portion of a taper bolt into an expanding member and expand the expanding blade to press-contact the expanding blade against the concrete body, a locknut is known in which a trigger is provided so as to protrude toward the inside of a nut body, the trigger is engaged with a thread of a male screw portion of the bolt to elastically deform the trigger to generate a pre-torque, and the nut is loosened due to vibration or the like when anchors attached to the concrete body and a mounting object on the nut are mounted, since the loose nut comes off and there is a possibility that the mounting object may fall off, it is desirable to use a locknut as a nut for anchoring, and since the locknut also functions as a forward torque when inserting a screw into a bolt, if the locknut is applied to a fastening type anchor, the trigger piece is engaged with the thread of the taper bolt, and even if the locknut is tightened while the taper bolt is being wound around the locknut, the taper portion of the taper bolt is not attracted by the expanding member, and the predetermined expanding of the expanding blade is not performed, and therefore, it is difficult to apply the fastening nut to the fastening type anchor to lock the loosening of the nut, and improvement is required.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving one of the technical problems of the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a fastening anchor, includes the anchor body, the upper end of anchor body is provided with external screw thread and locknut, still includes:

a shaft portion provided with a coming-off prevention unit;

the reducing part is sleeved with an expansion piece;

the conical part is connected with the reducing part;

wherein, the shaft part is connected with the lower end of the anchor body, the reducing part is connected with the lower end of the shaft part, and the tip of the conical part is connected with the lower end of the reducing part.

The utility model is further configured to: the expansion element further comprises:

a dividing groove provided on the expanding member;

the plurality of slit grooves are arranged at the lower end of the expansion piece in a surrounding manner;

wherein the dividing grooves penetrate the upper and lower ends, the inner side and the outer side of the expansion piece.

Further, the expansion element further comprises:

and the bulge is arranged on the outer side wall of the expansion piece.

Further, the anti-dropping unit further comprises:

the mounting groove is arranged on the outer side wall of the shaft part;

the anti-drop clamping plate is arranged in the mounting groove;

wherein, the lower extreme and the mounting groove lower part of anticreep cardboard are articulated, and the upper end of anticreep cardboard is most advanced.

Further, the locknut still includes:

the locking teeth are evenly distributed at the lower end of the locking nut and incline towards the loosening direction of the locking nut.

By adopting the technical scheme, compared with the prior art, the utility model has the beneficial effects that:

through the arrangement of the expansion piece, even if the locknut is applied, the expansion piece can be properly expanded to fix the anchor on the concrete body, the nut can be loosened, and the advantages of the fastening anchor and the locknut can be simultaneously exerted;

the installation firmness of the anchor is further improved by the arrangement of the anti-falling unit;

the anti-loosening effect of the anti-loosening nut is improved.

The advantageous effects of the present invention will be explained in detail in the embodiments, thereby making the advantageous effects more apparent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the locking teeth.

Fig. 3 is a schematic view of the stent structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 3, the present application provides a fastening anchor, including an anchor body 1, an upper end of the anchor body 1 is provided with an external thread 100 and a locknut 2, and further including:

a shaft 3, the shaft 3 being provided with a retaining means 4;

a reducing part 5, wherein an expansion piece 6 is sleeved on the reducing part 5;

a tapered portion 7, the tapered portion 7 being connected to the reduced diameter portion 5;

the shaft portion 3 is connected to the lower end of the anchor body 1, the reduced diameter portion 5 is connected to the lower end of the shaft portion 3, and the tip of the tapered portion 7 is connected to the lower end of the reduced diameter portion 5.

In the embodiment of the application, the fastening anchor is adopted, in the using process, the anchor body is hammered into the cutting hole of the concrete body by using the hammer, the expansion piece sleeved on the diameter reducing part is inserted into the cutting hole along with the anchor body under the pushing of the shaft part, after the anchor is inserted into the cutting hole, the locknut is screwed into the upper end of the anchor body, after the locknut is screwed in, the locknut is in contact with the surface of the concrete body and pulls the anchor body to the outside of the cutting hole along with further screwing in, along with the movement of the anchor body, the expansion piece generates friction with the inner wall of the cutting hole and moves to the conical part, the conical part props the expansion piece open, so that the outward bulge is embedded into the inner wall of the cutting hole of the concrete body, the anchor is fastened in the cutting hole, and the fastening effect of the anchor is improved.

Example 2:

in this embodiment, in addition to the structural features of the previous embodiment, the further expansion element 6 further comprises:

a dividing groove 61, the dividing groove 61 being provided in the expansion piece 6;

a plurality of slit grooves 62, the slit grooves 62 being circumferentially provided at the lower end of the expansion member 6;

a projection 63, the projection 63 being provided on the outer side wall of the expansion element 6.

Wherein the dividing grooves 61 penetrate the upper and lower ends, the inside and the outside of the expansion piece 6.

In the embodiment of the application, adopt foretell fastening anchor, in the use, after the expansion piece is drawn into the toper portion, cut apart groove and a plurality of slit groove and can make things convenient for the expansion piece to expand, reduce the expansion and will appear failing the phenomenon of timely expansion, the fastening effect of anchor has further been improved, the arch can improve the resistance between expansion piece and the concrete body cutting hole inner wall, make the expansion piece can be fast abundant expansion more after drawing into the toper portion, the fastening nature of anchor has further been improved.

Example 3:

in this embodiment, in addition to the structural features of the foregoing embodiment, the further anti-dropping unit 4 further includes:

a mounting groove 41, the mounting groove 41 being provided on an outer side wall of the shaft portion 3;

the anti-falling clamping plate 42 is arranged in the mounting groove 41;

wherein, the lower extreme and the mounting groove 41 lower part of anticreep cardboard 42 are articulated, and the upper end of anticreep cardboard 42 is most advanced.

In the embodiment of the application, adopt foretell fastening anchor, in the use, when the cutting hole is hammered into to the anchor body, the direction that the anticreep cardboard outwards rotated is in the same direction as the direction that the anchor body is hammered into, the anticreep cardboard is cut downthehole wall extrusion and is being in the mounting groove, along with locknut screws up gradually, the anchor body removes to cutting the hole outside, the direction that the anticreep cardboard outwards rotated is contrary with the moving direction of anchor body, thereby the anticreep cardboard removes and imbeds in the concrete body outwards the mounting groove, the fastening of anchor has further been improved.

Example 4:

in this embodiment, in addition to the structural features of the previous embodiment, the further locknut 2 further includes:

the locking teeth 21 are evenly distributed at the lower end of the locking nut 2, and the locking teeth 21 incline towards the loosening direction of the locking nut 2.

In the embodiment of the application, adopt foretell fastening anchor spare, in the use, a plurality of locking teeth can prevent that locknut from rotating to not hard up direction, have improved locknut's locking effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A fastening anchor, includes anchor body (1), the upper end of anchor body (1) is provided with external screw thread (100) and locknut (2), its characterized in that still includes:

a shaft part (3), wherein the shaft part (3) is provided with a retaining unit (4);

the reducing part (5), the expanding piece (6) is sleeved on the reducing part (5);

a tapered portion (7), the tapered portion (7) being connected to the reduced diameter portion (5);

the shaft part (3) is connected with the lower end of the anchor body (1), the reducing part (5) is connected with the lower end of the shaft part (3), and the tip of the conical part (7) is connected with the lower end of the reducing part (5).

2. A fastener anchor according to claim 1, wherein the expansion member (6) further comprises:

a dividing groove (61), the dividing groove (61) being provided on the expanding piece (6);

the plurality of slit grooves (62) are arranged at the lower end of the expansion piece (6) in a surrounding way;

wherein the dividing groove (61) penetrates the upper and lower ends, the inside and the outside of the expansion piece (6).

3. A fastener anchor according to claim 2, wherein the expansion member (6) further comprises:

a projection (63), said projection (63) being arranged on the outer side wall of the expansion element (6).

4. A fastener anchor according to claim 1, wherein the retaining unit (4) further comprises:

a mounting groove (41), the mounting groove (41) being provided on an outer side wall of the shaft portion (3);

the anti-falling clamp plate (42), the anti-falling clamp plate (42) is arranged in the mounting groove (41);

the lower end of the anti-falling clamping plate (42) is hinged to the lower portion of the mounting groove (41), and the upper end of the anti-falling clamping plate (42) is a tip.

5. A fastener anchor according to claim 1, wherein the locknut (2) further comprises:

the locking device comprises a plurality of locking teeth (21), wherein the locking teeth (21) are uniformly distributed at the lower end of the locking nut (2), and the locking teeth (21) incline towards the loosening direction of the locking nut (2).