CN220248585U

CN220248585U - Anti-drop stud

Info

Publication number: CN220248585U
Application number: CN202321361209.1U
Authority: CN
Inventors: 焦志民; 丁勤效; 丁冠文; 徐晨鹏; 汤平根; 李可未
Original assignee: Jiangsu Jiangyang Fasteners Co ltd
Current assignee: Jiangsu Jiangyang Fasteners Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-12-26
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses an anti-drop stud bolt, and relates to the technical field of fasteners. The utility model comprises a double-end screw, two nuts, a group of limiting parts and a reinforcing part, wherein the two nuts are respectively arranged on two threaded ends of the double-end screw in a threaded manner, inner holes are formed in two ends of the double-end screw, a strip-shaped opening is formed in one side of the inner hole, inner through openings with two ends connected with the inner hole are formed in the double-end screw, the limiting parts comprise ends, an outer through opening is formed in the axis of each end, a blocking rod is arranged on the peripheral side face of one end of each end, and the ends are arranged in the inner holes in an interference manner. According to the utility model, the inner hole body and the strip-shaped opening are arranged at the two ends of the stud, and the limiting parts can be arranged in an interference manner, so that the nut is blocked, the loosening problem of the nut is avoided, meanwhile, the reinforcing part is used for connecting the two limiting parts to interlock, the anti-falling capacity of the stud can be effectively improved, and meanwhile, the connection strength and stability between the nut and the screw are improved.

Description

Anti-drop stud

Technical Field

The utility model belongs to the technical field of fasteners, and particularly relates to an anti-falling stud.

Background

The anti-drop measure to the bolt for avoid the rotation and the displacement of nut, can adopt spot welding and alternate fastening pin (or steel wire)'s mode to fasten, to spot welding, because the existence of screw thread is difficult to carry out spot welding, can appear that the welding layer rust or drop causes the condition that anti-drop effect is not good.

If the mode of penetrating the limiting pin or the limiting steel wire is adopted, the problem of the discomfort of the preset hole on the bolt can occur, if the bolt is grooved on site, the problem of difficult processing and lower assembly efficiency can occur, meanwhile, the limiting pin generally adopts a cotter pin, the problem of smaller specification exists in accordance with the steel wire, the anti-falling effect is poor, and the service life is short due to easy damage.

Disclosure of Invention

The utility model aims to provide an anti-drop stud, wherein inner hole bodies and strip-shaped openings are arranged at two ends of the stud, and limit parts can be arranged in an interference manner, so that nuts are blocked, the problem of loosening of the nuts is avoided, meanwhile, the nut is used for connecting two limit parts through a reinforcing member to interlock, the anti-drop capability of the stud can be effectively improved, and meanwhile, the connection strength and stability between the nuts and a screw are improved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an anti-drop stud, which comprises a stud, two nuts, a group of limiting parts and a reinforcing part, wherein the two nuts are respectively arranged on two threaded ends of the stud in a threaded manner;

the double-end screw is internally provided with an inner penetrating opening, and the two ends of the double-end screw are connected with the inner hole;

the limiting piece comprises a tip, an outer penetrating hole is formed in the axis of the tip, a blocking rod is arranged on the peripheral side face of one end of the tip, the tip is arranged in the inner hole in an interference mode, and a gap of the blocking rod is arranged in the strip-shaped hole and the outer side of the gap is attached to the outer end face of the nut;

the outer through holes on the two end heads are concentric with the inner through holes, and the reinforcement penetrates through the outer through holes and the inner through holes.

Further, the reinforcement is a pin, which is disposed in the inner and outer through openings in an interference manner.

Further, the reinforcement is a steel wire, and two ends of the steel wire are positioned outside two ends of the double-headed screw and wound on the two nuts.

Further, the two ends of the nut are respectively provided with an end piece, the two end pieces and the nut are in an I-shaped structure, and the end parts of the steel wires are wound between the two end pieces.

Further, a notch is arranged on an end piece of the nut close to the end part of the double-ended screw rod, and the end part of the steel wire is led into the outer side of the nut through the notch.

Further, the cross section of the blocking rod is of a kidney-shaped structure, and the blocking rod is attached to the end piece on the outer side of the nut.

The utility model has the following beneficial effects:

according to the utility model, the inner hole body and the strip-shaped opening are arranged at the two ends of the stud, and the limiting parts can be arranged in an interference manner, so that the nut is blocked, the loosening problem of the nut is avoided, meanwhile, the reinforcing part is used for connecting the two limiting parts to interlock, the anti-falling capacity of the stud can be effectively improved, and meanwhile, the connection strength and stability between the nut and the screw are improved.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a structure of an anti-drop stud according to the present utility model;

FIG. 2 is a schematic view of the structure of the double-ended screw and nut;

fig. 3 is a schematic structural view of the limiting member.

Fig. 4 is a schematic view of the structure of one end of the double-ended screw according to the first embodiment.

FIG. 5 is a schematic view of the structure of one end of a double-ended screw according to the second embodiment;

in the drawings, the list of components represented by the various numbers is as follows:

the device comprises a 1-double-head screw, a 2-nut, a 3-limiting piece, a 4-reinforcing piece, a 101-inner hole body, a 102-strip-shaped opening, a 103-inner through opening, a 201-end piece, a 202-notch, a 301-end, a 302-outer through opening and a 303-blocking rod.

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.

Example 1

Referring to fig. 1-4, the utility model discloses an anti-falling stud bolt, which comprises a stud bolt 1, two nuts 2, a group of limiting parts 3 and a reinforcing part 4, wherein the two nuts 2 are respectively arranged on two threaded ends of the stud bolt 1 in a threaded manner;

the two ends of the double-headed screw 1 are provided with inner hole bodies 101, one side of each inner hole body 101 is provided with a strip-shaped opening 102, and the double-headed screw 1 is internally provided with inner through holes 103 with two ends connected with the inner hole bodies 101;

the limiting piece 3 comprises a head 301, an outer penetrating opening 302 is formed in the axis of the head 301, a blocking rod 303 is arranged on the peripheral side surface of one end of the head 301, the head 301 is arranged in the inner hole body 101 in an interference mode, the blocking rod 303 is arranged in the strip-shaped opening 102 in a clearance mode, and the outer side of the blocking rod 303 is attached to the outer end face of the nut 2;

the outer through openings 302 on the two ends 301 are concentric with the inner through openings 103, and the reinforcement member 4 penetrates the outer through openings 302 and the inner through openings 103.

Wherein, the reinforcement 4 is the steel wire, and the steel wire both ends are located double-end screw rod 1 both ends outside and are wound on two nuts 2.

As shown in fig. 1-2 and fig. 4, two ends of the nut 2 are provided with end pieces 201, the two end pieces 201 and the nut 2 are in an i-shaped structure, and the end of the steel wire is wound between the two end pieces 201.

As shown in fig. 1-2, a notch 202 is arranged on an end piece 201 of the nut 2 near the end of the double-ended screw 1, and the end of the steel wire is led into the outer side of the nut 2 through the notch 202.

As shown in fig. 1 and fig. 3-4, the cross section of the blocking rod 303 is in a kidney-shaped structure, and the blocking rod 303 is attached to the end piece 201 on the outer side of the nut 2.

Example two

Referring to fig. 5, the present utility model is an anti-falling stud bolt, which comprises a stud bolt 1, two nuts 2, a set of limiting members 3 and a reinforcement member 4, wherein the two nuts 2 are respectively arranged on two threaded ends of the stud bolt 1 in a threaded manner;

Wherein the reinforcement member 4 is a pin disposed in the inner and outer through openings 103, 302 with interference.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides an anticreep stud, includes double-end screw rod (1) and two nuts (2), two nut (2) screw thread setting respectively on the two screw thread ends of double-end screw rod (1), its characterized in that: the device also comprises a group of limiting pieces (3) and a reinforcement (4);

the double-end screw (1) is provided with an inner hole body (101) at both ends, one side of the inner hole body (101) is provided with a strip-shaped opening (102), and an inner through opening (103) with both ends connected with the inner hole body (101) is arranged in the double-end screw (1);

the limiting piece (3) comprises a tip (301), an outer penetrating opening (302) is formed in the axis of the tip (301), a blocking rod (303) is arranged on the peripheral side face of one end of the tip (301), the tip (301) is arranged in the inner hole body (101) in an interference mode, and the blocking rod (303) is arranged in the strip-shaped opening (102) in a clearance mode and is attached to the outer end face of the nut (2) on the outer side;

the outer through holes (302) on the two ends (301) are concentric with the inner through holes (103), and the reinforcing member (4) penetrates through the outer through holes (302) and the inner through holes (103).

2. An anti-slip stud according to claim 1, wherein the reinforcement member (4) is a pin which is disposed in interference within the inner (103) and outer (302) ports.

3. The anti-drop stud according to claim 1, wherein the reinforcement (4) is a steel wire, the two ends of which are located outside the two ends of the stud (1) and are wound around the two nuts (2).

4. A drop-proof stud according to claim 3, wherein the nut (2) is provided with end pieces (201) at both ends, both the end pieces (201) and the nut (2) are in an i-shaped structure, and the wire ends are wound between the end pieces (201).

5. The anti-drop stud according to claim 4, wherein the end piece (201) of the nut (2) near the end of the stud (1) is provided with a notch (202), and the end of the steel wire is led into the outside of the nut (2) through the notch (202).

6. The anti-drop stud according to claim 5, wherein the cross section of the blocking rod (303) is of a kidney-shaped structure, and the blocking rod (303) is attached to the end piece (201) on the outer side of the nut (2).