CN219242413U

CN219242413U - Fastening bolt for mechanical anti-drop

Info

Publication number: CN219242413U
Application number: CN202320089256.9U
Authority: CN
Inventors: 占周云; 黄云泉; 徐留千
Original assignee: Jiangyin Jixi Equipment Co ltd
Current assignee: Jiangyin Jixi Equipment Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-06-23
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a mechanical anti-drop fastening bolt, and relates to the technical field of fasteners. The utility model comprises a screw, a nut, a fastening ring and a stop pin, wherein the screw consists of a screw head part and a screw rod part, a nut thread is arranged on the screw rod part, a through groove is formed in the peripheral side surface of the screw rod part, the through groove penetrates through the axis of the screw rod part, the through groove consists of a plurality of annular holes which are linearly arranged, an inner notch is formed in the inner side of one end of the nut, far away from the screw head part, of the fastening ring, a rotating ring is arranged at one end of the fastening ring, the rotating ring is rotatably arranged in the inner notch, and a flat convex surface is arranged on one opposite side of the fastening ring. According to the utility model, the through groove formed by combining the annular holes is formed in the screw part, and the rotatable fastening ring is arranged on the nut, so that the stop pin can be arranged in the fastening ring and the annular holes in an interference manner, the stop pin is limited by the positions of the annular holes, the anti-falling effect is good, the stop pin is matched with each annular hole, and the application range of the fastening bolt can be greatly improved.

Description

Fastening bolt for mechanical anti-drop

Technical Field

The utility model belongs to the technical field of fasteners, and particularly relates to a mechanical anti-falling fastening bolt.

Background

Aiming at the mechanical anti-drop measure of the bolt, a hole is formed in the screw, a cotter pin or a steel wire is inserted into the hole for locking the position of the nut, if the hole is a strip-shaped groove or a kidney-shaped groove, the stop element still has a sliding trend, the anti-drop performance is poor, if the hole is a single cylindrical hole, the problem that the fit cannot be achieved possibly occurs aiming at different mounting points, for example, the stop element is not easy to insert due to the fact that the distance between the hole and the nut is too small, or the stop element with too large distance between the hole and the nut does not play a role, and the application range is smaller.

Therefore, designing a fastening bolt with a larger application range and a better anti-falling effect is a problem to be solved by workers in the field.

Disclosure of Invention

The utility model aims to provide a mechanical anti-drop fastening bolt, which is characterized in that a through groove formed by combining annular holes is arranged on a screw part, a rotatable fastening ring is arranged on a nut, a stop pin is arranged in the fastening ring and the annular holes in an interference manner, the stop pin is limited by the positions of the annular holes, the anti-drop effect is good, the stop pin is matched with each annular hole, and the application range of the fastening bolt can be greatly improved.

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

the utility model relates to a mechanical anti-falling fastening bolt which comprises a screw, a nut, a fastening ring and a stop pin, wherein the screw consists of a screw head part and a screw rod part, and the nut is arranged on the screw rod part in a threaded manner;

the periphery of the screw rod part is provided with a through groove, the through groove penetrates through the axis of the screw rod part, and the through groove consists of a plurality of annular holes which are linearly arranged;

an inner notch is formed in the inner side of one end, far away from the screw head, of the nut, a rotating ring is arranged at one end of the fastening ring, the rotating ring is rotatably arranged in the inner notch, a flat convex surface is arranged on one opposite side of the fastening ring, and a through hole is formed in the flat convex surface;

the stop pin penetrates through the through holes of the two flat convex surfaces and the annular hole, and the stop pin is in interference fit with the annular hole.

Further, the nut is close to one end of the screw head and the end face of the screw head is provided with a compression ring, and the inner side of the compression ring of the nut is provided with a spring washer.

Further, one end of the stop pin is provided with a tip, and the other end of the stop pin is provided with a pointed end.

Further, the depth of the inner groove opening occupies half of the length of the nut, and the inner surface of the swivel is attached to the screw teeth of the screw rod part.

Further, the inner end face of the inner groove opening is provided with a limiting groove, one end of the swivel, which is far away from the fastening ring, is provided with an outer support edge, and the outer support edge is arranged in the limiting groove in a clearance mode and is rotationally connected with the limiting groove.

Further, the outer diameter of the swivel is consistent with the outer diameter of the fastening ring, and the inner diameter of the swivel is consistent with the inner diameter of the fastening ring.

The utility model has the following beneficial effects:

according to the utility model, the through groove formed by combining the annular holes is formed in the screw part, and the rotatable fastening ring is arranged on the nut, so that the stop pin can be arranged in the fastening ring and the annular holes in an interference manner, the stop pin is limited by the positions of the annular holes, the anti-falling effect is good, the stop pin is matched with each annular hole, and the application range of the fastening bolt can be greatly 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 mechanical anti-drop fastening bolt according to the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

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

1-screw, 2-nut, 3-fastening ring, 4-stop pin, 5-spring washer, 101-screw head, 102-screw rod portion, 103-through slot, 201-inner notch, 202-limit slot, 203-press ring, 301-swivel, 302-flat convex surface, 303-outer edge, 401-end, 402-tip.

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.

Referring to fig. 1-2, the utility model is a mechanical anti-falling fastening bolt, which comprises a screw 1, a nut 2, a fastening ring 3 and a stop pin 4, wherein the screw 1 consists of a screw head 101 and a screw rod 102, and the nut 2 is arranged on the screw rod 102 in a threaded manner;

the peripheral side surface of the screw part 102 is provided with a through groove 103, the through groove 103 penetrates through the axis of the screw part 102, and the through groove 103 consists of a plurality of annular holes which are linearly arranged;

an inner notch 201 is formed in the inner side of one end, far away from the screw head 101, of the nut 2, a rotary ring 301 is arranged at one end of the fastening ring 3, the rotary ring 301 is rotatably arranged in the inner notch 201, a flat convex surface 302 is arranged on one opposite side of the fastening ring 3, and a through hole is formed in the flat convex surface 302;

the stop pin 4 penetrates through the through holes of the two flat convex surfaces 302 and an annular hole, and the stop pin 4 is in interference fit with the annular hole.

As shown in fig. 1-2, a compression ring 203 is disposed at one end of the nut 2 near the screw head 101 and at the end face of the screw head 101, and a spring washer 5 is disposed inside the compression ring 203 of the nut 2.

Wherein, as shown in fig. 1-2, one end of the stop pin 4 is provided with a tip 401 and the other end of the stop pin 4 is provided with a tip 402.

As shown in fig. 2, the depth of the inner groove 201 occupies half of the length of the nut 2, and the inner surface of the swivel 301 is attached to the screw teeth of the screw portion 102.

As shown in fig. 2, a limiting groove 202 is provided on the inner end surface of the inner groove opening 201, an outer support edge 303 is provided on one end of the swivel 301 away from the fastening ring 3, and the outer support edge 303 is disposed in the limiting groove 202 in a clearance manner and is rotationally connected with the limiting groove 202.

Wherein, the outer diameter of the swivel 301 is consistent with the outer diameter of the fastening ring 3, and the inner diameter of the swivel 301 is consistent with the inner diameter of the fastening ring 3.

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 a fastening bolt of machinery anticreep, includes screw (1) and nut (2), screw (1) are constituteed by screw head (101) and screw rod portion (102), nut (2) screw thread setting is on screw rod portion (102), its characterized in that: the device also comprises a fastening ring (3) and a stop pin (4);

a through groove (103) is formed in the peripheral side surface of the screw part (102), the through groove (103) penetrates through the axis of the screw part (102), and the through groove (103) is formed by a plurality of annular holes which are linearly arranged;

an inner notch (201) is formed in the inner side of one end, far away from the screw head (101), of the nut (2), a swivel (301) is arranged at one end of the fastening ring (3), the swivel (301) is rotatably arranged in the inner notch (201), a flat convex surface (302) is formed on one opposite side of the fastening ring (3), and a through hole is formed in the flat convex surface (302);

the stop pin (4) penetrates through the through holes of the two flat convex surfaces (302) and the annular hole, and the stop pin (4) is in interference fit with the annular hole.

2. The mechanical anti-drop fastening bolt according to claim 1, wherein the end of the nut (2) close to the screw head (101) and the end face of the screw head (101) are both provided with a compression ring (203), and the inner side of the compression ring (203) of the nut (2) is provided with a spring washer (5).

3. A mechanical anti-drop fastening bolt according to claim 1, characterized in that the retaining pin (4) is provided with a tip (401) at one end and a pointed tip (402) at the other end of the retaining pin (4).

4. The mechanical anti-drop fastening bolt according to claim 1, wherein the depth of the inner groove opening (201) occupies half of the length of the nut (2), and the inner surface of the swivel (301) is attached to the screw teeth of the screw portion (102).

5. The mechanical anti-drop fastening bolt according to claim 1, wherein a limit groove (202) is formed in an inner end surface of the inner groove opening (201), an outer support edge (303) is formed at one end, away from the fastening ring (3), of the swivel (301), and the outer support edge (303) is arranged in the limit groove (202) in a clearance mode and is in rotary connection with the limit groove (202).

6. The mechanical anti-drop fastening bolt according to claim 1, wherein the outer diameter of the swivel (301) corresponds to the outer diameter of the fastening ring (3), and the inner diameter of the swivel (301) corresponds to the inner diameter of the fastening ring (3).