CN220151685U

CN220151685U - Anti-pulling anchor expansion nut

Info

Publication number: CN220151685U
Application number: CN202321493509.5U
Authority: CN
Inventors: 徐倚山; 徐小山; 沈峰; 花四艳
Original assignee: Jiangsu Dongqi Standard Parts Co ltd
Current assignee: Jiangsu Dongqi Standard Parts Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-12-08
Anticipated expiration: 2033-06-09

Abstract

The utility model relates to the technical field of expansion nuts, in particular to a pull-out-resistant anchor expansion nut. The technical scheme adopted by the utility model is as follows: including the nut main part spliced pole of being made and the center pin is the upper and lower direction by metal material, the upper end central point of nut main part spliced pole puts and is equipped with the central cooperation connecting hole that runs through whole lower extreme, and the upper end position of central cooperation connecting hole is equipped with the fastening connection screw hole, and the length of fastening connection screw hole upper and lower direction is less than half of nut main part spliced pole upper and lower direction length, and the outer cylinder of nut main part spliced pole is equipped with circumference evenly distributed and with the convenient open slot of inflation that the nut main part spliced pole lower extreme runs through completely near lower extreme position. The utility model has the advantages that: when the anti-pulling device is used, the expansion plugs are matched for combined use, so that the anti-pulling matching groove is matched with the ground main body in a comprehensive and firm mode, a reliable anti-pulling matching effect is achieved, the anti-pulling force is stronger during use, and the safety in the later use process is higher.

Description

Anti-pulling anchor expansion nut

Technical Field

The utility model relates to the technical field of expansion nuts, in particular to a pull-out-resistant anchor expansion nut.

Background

The lower margin expansion nut is used for fixing the nut structure on the ground, and it is different with general expansion bolt, and nut fastening space when needs to provide the later stage and joins in marriage, and general nut structure is when carrying out the cooperation on ground, and the gripping force between the ground is unstable, and the pulling resistance in the use is relatively poor, and the security when using can't be ensured, and to some connection products that bear the weight of intensity requirement and have relatively high, the convenience when using is relatively poor, and use cost is also relatively high.

Disclosure of Invention

The utility model aims to provide a pull-out-resistant anchor expansion nut, which adopts a brand-new structural design, and is characterized in that two combined pull-out-resistant matching grooves matched with each other are arranged on a nut main body structure and are arranged into matching structures with different depths, and the expansion plugs are matched for combined use in the later stage of use, so that the pull-out-resistant matching grooves and the ground main body are matched in a fully fastened manner, the pull-out-resistant anchor expansion nut has a reliable pull-out-resistant matching effect, the pull-out resistance in use is stronger, the safety in the later stage of use is higher, the production of the whole structure is more convenient, the use cost is lower, and the matching use requirement of the high-strength pull-out-resistant nut can be met.

The technical scheme of the utility model is as follows:

the utility model provides an anti lower margin expansion nut that pulls out which characterized in that: including making and the center pin is the cylindrical nut main part spliced pole of upper and lower direction by metal material, the upper end central point of nut main part spliced pole puts and is equipped with the cylindrical center cooperation connecting hole that runs through whole lower extreme, the upper end position of center cooperation connecting hole is equipped with the fastening connection screw hole, the length of fastening connection screw hole upper and lower direction is less than the half of nut main part spliced pole upper and lower direction length, the outer cylinder face of nut main part spliced pole is equipped with circumference evenly distributed and will near the lower extreme position the convenient open slot of inflation that nut main part spliced pole lower extreme runs through completely, the inside of the convenient open slot of inflation with center cooperation connecting hole communicates with each other, the lower extreme edge position of center cooperation connecting hole is equipped with expansion plug combination guide way, the outer cylinder face of nut main part spliced pole is equipped with the main part anti-pulling fit groove that the opening outside cross-section is V-shaped near the lower extreme position that the main part anti-pulling fit groove up and down direction symmetry is equipped with the opening outside and the steady reinforcement fit groove that the cross-section is trapezoidal, the depth of main part anti-pulling fit groove is greater than the steady depth of the reinforcement fit groove.

Further, the length of the opening groove convenient to expand in the up-down direction is smaller than half of the length of the nut main body connecting column in the up-down direction.

Further, the main body anti-pulling fit groove is positioned at the center of the expansion convenient opening groove in the up-down direction.

Further, the width of the outer side of the main body anti-pulling fit groove is the same as the width of the outer side of the opening groove convenient to expand.

Further, the depth of the main body anti-pulling fit groove is smaller than or equal to half of the wall thickness from the outer cylindrical surface of the nut main body connecting column to the inner cylindrical surface of the center fit connecting hole.

The utility model has the beneficial effects that:

according to the utility model, a brand new structural design is adopted, two combined mutually matched anti-pulling fit grooves are formed in the nut main body structure and are set into the fit structures with different depths, and the expansion plugs are matched for combined use in the later stage, so that the positions of the anti-pulling fit grooves are matched with the ground main body in a comprehensive fastening manner, a reliable anti-pulling fit effect is achieved, the anti-pulling force in the use process is stronger, the safety in the later stage use process is higher, the production of the integral structure is more convenient, the use cost is lower, and the fit use requirement of the high-strength anti-pulling nut can be met.

Drawings

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

FIG. 2 is a schematic front view of the present utility model;

FIG. 3 is a left side schematic view of the present utility model;

FIG. 4 is a schematic cross-sectional view of the A-A position of the present utility model;

FIG. 5 is a schematic top view of the present utility model;

FIG. 6 is a schematic bottom view of the present utility model;

FIG. 7 is a schematic perspective view of a second direction of the present utility model;

in the figure: 1. nut main part spliced pole, 2, center cooperation connecting hole, 3, fastening connection screw hole, 4, the convenient open slot of inflation, 5, expansion plug combination guide way, 6, main part anti-pulling fit groove, 7, stable reinforcement fit groove.

Detailed Description

As shown in fig. 1 to 7, an anti-pulling anchor expansion nut comprises a cylindrical nut body connecting column 1 made of metal materials and having a central shaft in the up-down direction, wherein a cylindrical central matching connecting hole 2 penetrating through the whole lower end is arranged at the central position of the upper end of the nut body connecting column 1, and the position is a round hole. The upper end position of the central matching connection hole 2 is provided with a fastening connection threaded hole 3 which is a fastening thread matching groove used in the later period. The length of the fastening connection threaded hole 3 in the up-down direction is smaller than half of the length of the nut main body connecting column 1 in the up-down direction, so that the lower end position is ensured to have a larger matching space as an expansion matching structure, and the stability of the whole ground combination can be ensured. The outer cylindrical surface of the nut body connecting column 1 is provided with the convenient expansion open slot 4 which is uniformly distributed along the circumference and completely penetrates through the lower end of the nut body connecting column 1 near the lower end, so that the lower end position has safer deformation fit when expanding. The inside of the convenient open slot 4 of inflation with the center cooperation connecting hole 2 communicates with each other, the lower extreme edge position of center cooperation connecting hole 2 is equipped with expansion plug combination guide way 5, and the lower extreme position cooperation expansion plug is used in combination, can make the lower extreme position produce deformation when cooperating to fasten with ground and make up together. The outer cylinder of nut main part spliced pole 1 leans on the lower extreme position to be equipped with opening outside cross-section and is V-arrangement's main part anti-pulling fit groove 6, the outer cylinder of nut main part spliced pole 1 is located the position of main part anti-pulling fit groove 6 up-and-down direction symmetry is equipped with opening outside and the cross-section is trapezoidal steady reinforcement fit groove 7, the degree of depth of main part anti-pulling fit groove 6 is greater than the degree of depth of steady reinforcement fit groove 7, and the guarantee is bigger with the cooperation area between the ground in the use, and holistic anti-pulling force is stronger to can satisfy the user demand when the connection cooperation that the anti-pulling capacity is stronger when later stage uses, the connection bearing strength when need not use expansion nut of a plurality of can guarantee later stage cooperation. The novel structure design is adopted, the two combined mutually matched anti-pulling fit grooves are formed in the nut main body structure and are arranged to be of different depths, the expansion plugs are matched for combined use in the later period of use, the anti-pulling fit grooves and the ground main body can be matched in a fully fastened mode, the novel structure has a reliable anti-pulling fit effect, the anti-pulling force in the use process is stronger, the safety in the later period of use is higher, the production of the whole structure is more convenient, the use cost is lower, and the fit use requirement of the high-strength anti-pulling nut can be met.

When the expansion plug is used, the lower end position is matched with the expansion plug for combined use, the expansion plug can deform the whole lower end position after being inserted into the expansion position, so that the expansion plug can be combined with a ground main body structure, the anti-pulling fit groove position can be matched with the ground in a larger area, the combination anti-pulling force is more reliable, and the fit safety in later use can be ensured.

Preferably, the length of the expansion convenient open slot 4 in the up-down direction is less than half of the length of the nut main body connecting column 1 in the up-down direction, so that the influence of the opening position on the strength of the main body structure is less, the overall structural strength is more reliable, and the main body supporting strength is higher in later use.

Preferably, the main body anti-pulling matching groove 6 is located at the central position of the upper and lower directions of the expansion convenient opening groove 4, so that the structural stability of the expansion anti-loosening position at the lower end is better, the anti-pulling matching force is more concentrated, and the anti-pulling effect is better.

Preferably, the width of the outer side of the main body anti-pulling fit groove 6 is the same as the width of the outer side of the expansion convenient opening groove 4, so that the flatness of the outer side position is better, and the fit safety of the whole structure in use is more reliable.

Preferably, the depth of the main body anti-pulling fit groove 6 is less than or equal to half of the wall thickness from the outer cylindrical surface of the nut main body connecting column 1 to the inner cylindrical surface of the central fit connecting hole 2, so that the strength of the expansion position structure is ensured, and the supporting strength of the expansion position structure is influenced if the depth is too large.

While the foregoing is directed to the preferred embodiments of the present utility model, it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions should also be considered to be within the scope of the present utility model.

Claims

1. The utility model provides an anti lower margin expansion nut that pulls out which characterized in that: including making and the center pin is cylindrical nut main part spliced pole (1) of upper and lower direction by metal material, the upper end central point of nut main part spliced pole (1) puts and is equipped with cylindrical center cooperation connecting hole (2) that run through whole lower extreme, the upper end position of center cooperation connecting hole (2) is equipped with fastening connection screw hole (3), the length of fastening connection screw hole (3) upper and lower direction is less than half of nut main part spliced pole (1) upper and lower direction length, the outer cylinder of nut main part spliced pole (1) is equipped with circumference evenly distributed and will near lower extreme position nut main part spliced pole (1) lower extreme is convenient open slot (4) of inflation that runs through completely, the inside of convenient open slot (4) of inflation with center cooperation connecting hole (2) communicate with each other, the lower extreme edge position of center cooperation connecting hole (2) is equipped with expansion plug combination guide way (5), the outer cylinder of nut main part spliced pole (1) is equipped with the open cross-section and is V-shaped's main part anti-pulling fit groove (6) down, nut main part spliced pole (1) outer cylinder is equipped with the anti-pulling fit groove (7) of the outside the cross-section depth of stability (7) under the position of the outer cylinder of side (7) is the steady side cooperation groove.

2. The pullout-resistant anchor expansion nut of claim 1, wherein: the length of the opening groove (4) convenient to expand in the up-down direction is smaller than half of the length of the nut main body connecting column (1) in the up-down direction.

3. The pullout-resistant anchor expansion nut of claim 1, wherein: the main body anti-pulling fit groove (6) is positioned at the center of the expansion convenient opening groove (4) in the up-down direction.

4. The pullout-resistant anchor expansion nut of claim 1, wherein: the width of the outer side of the main body anti-pulling fit groove (6) is the same as the width of the outer side of the convenient expansion open groove (4).

5. The pullout-resistant anchor expansion nut of claim 1, wherein: the depth of the main body anti-pulling fit groove (6) is smaller than or equal to half of the wall thickness from the outer cylindrical surface of the nut main body connecting column (1) to the inner cylindrical surface of the center fit connecting hole (2).