CN218953777U

CN218953777U - Bolt fastener with stop device

Info

Publication number: CN218953777U
Application number: CN202223338637.0U
Authority: CN
Inventors: 沈星煌; 姜伟; 涂晓波; 钱云柱; 何青松
Original assignee: Wenzhou Shengyu Auto Parts Co ltd
Current assignee: Wenzhou Shengyu Auto Parts Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-02
Anticipated expiration: 2032-12-12

Abstract

The utility model provides a bolt fastener with a limiting device, which comprises a hexagonal head, a main screw, an auxiliary screw, a nut and a limiter, wherein: the upper surface of the hexagonal head is connected with the bottom end of the main screw rod, the top end of the main screw rod is connected with the bottom end of the auxiliary screw rod, and the top end of the auxiliary screw rod is connected with the limiter in a nested manner; the nut is connected with the main screw rod and the auxiliary screw rod. When the nut is used, the nut can be limited by the limiter, and the nut, the main screw and the auxiliary screw can be prevented from loosening or falling off no matter how the parts vibrate, so that the whole nut is safer and more reliable, and the nut is convenient for market popularization and application.

Description

Bolt fastener with stop device

Technical Field

The utility model relates to the field of bolts, in particular to a bolt fastener with a limiting device.

Background

And (3) a bolt: a mechanical part, a cylindrical threaded fastener for use with a nut. A fastener consisting of a head part and a screw rod (a cylinder with external threads) needs to be matched with a nut for fastening two parts with through holes.

However, in the conventional bolt fastener, since the bolts are connected by screw threads, the bolts or nuts are easily loosened by long-term vibration when the bolt fastener is fixed to a vibrating device, and it is known that the loosening of the bolts is very dangerous.

Therefore, it is necessary to provide a bolt fastener with a stop device.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a bolt fastener with a limiting device, which comprises a hexagonal head, a main screw, an auxiliary screw, a nut and a limiter, wherein: the upper surface of the hexagonal head is connected with the bottom end of the main screw rod, the top end of the main screw rod is connected with the bottom end of the auxiliary screw rod, and the top end of the auxiliary screw rod is connected with the limiter in a nested manner; the nut is connected with the main screw rod and the auxiliary screw rod.

Preferably, a round hole is formed in the top end of the auxiliary screw rod, and a spring is arranged in the round hole.

Preferably, the nut comprises a main nut, an auxiliary nut, a clamping groove and a limiting hole, one end of the main nut is connected with one end of the auxiliary nut, the main nut is connected with the main screw, and the auxiliary nut is connected with the auxiliary screw; the number of the clamping grooves is three, and the clamping grooves are uniformly distributed and are formed in the inner surface of the auxiliary nut in a penetrating manner; the limiting holes are formed in three, the limiting holes are uniformly formed in the outer side of the auxiliary nut, and the limiting holes and the clamping grooves are arranged in a staggered mode; the main nut and the auxiliary nut are coaxial.

Preferably, the limiter comprises a round table, a rotating shaft, a connecting plate and a limiting column, wherein the bottom surface of the round table is connected with the top end of the rotating shaft through a bearing, and the bottom end of the rotating shaft is nested in the round hole and connected with the top end of the spring; three identical connecting plates are uniformly distributed on the outer side of the top end of the round table, and limit columns are respectively arranged on the outer sides of the connecting plates, and the top ends of the limit columns are level with the top end of the round table; the positions of the limiting columns correspond to the positions of the clamping grooves and the limiting holes.

Preferably, the diameter of the main screw rod is larger than that of the auxiliary screw rod, the inner diameter of the main nut is larger than the total width of the auxiliary screw rod and the limiting column, the inner diameter of the auxiliary screw rod is smaller than that of the main screw rod, the inner diameter of the main screw rod is identical with that of the main screw rod, and the inner diameter of the auxiliary screw rod is identical with that of the auxiliary screw rod.

Compared with the prior art, the utility model has the advantages that:

the utility model is integrally arranged, when the parts working in vibration are fixed, after the nut is in place, the limiting column can be inserted into the limiting hole to limit the nut, and the nut or the bolt is prevented from loosening and falling off, so that the nut or the bolt is safer and more reliable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a schematic view of a partial semi-cut structure of the present utility model.

Fig. 3 is a schematic view of the overall split structure of the present utility model.

In the figure:

six-edged head 1, main screw 2, auxiliary screw 3, nut 4, main nut 41, auxiliary nut 42, C-shaped clamping groove 43, limiting hole 44, limiter 5, round table 51, rotating shaft 52, connecting plate 53, limiting column 54, round hole 6 and spring 7.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

The utility model is further described below with reference to the accompanying drawings:

example 1

Referring to fig. 1 to 3, a bolt fastener with a limiting device includes a hexagonal head 1, a main screw 2, a sub screw 3, a nut 4 and a limiter 5, wherein: the upper surface of the hexagonal head 1 is connected with the bottom end of the main screw rod 2, the top end of the main screw rod 2 is connected with the bottom end of the auxiliary screw rod 3, and the top end of the auxiliary screw rod 3 is connected with the limiter 5 in a nested manner; the nut 4 is connected to the main screw 2 and the sub screw 3.

The top end of the auxiliary screw rod 3 is provided with a round hole 6, a spring 7 is arranged in the round hole 6, and the expansion length of the spring 7 is 0.3cm to 0.5cm;

when the parts are fixed through the main screw 2 and the auxiliary screw 3, the limit stopper 5 can be pulled outwards through the arrangement of the spring 7, so that after the nut 4 is fixed in place, the limit posts 54 are convenient to insert in the corresponding limit holes 44.

The nut 4 comprises a main nut 41, an auxiliary nut 42, a C-shaped clamping groove 43 and a limiting hole 44, one end of the main nut 41 is connected with one end of the auxiliary nut 42, the main nut 41 is connected with the main screw 2, and the auxiliary nut 42 is connected with the auxiliary screw 3; three C-shaped clamping grooves 43 are formed, and the C-shaped clamping grooves 43 are uniformly distributed and penetrate through the inner surface of the auxiliary nut 42; three limiting holes 44 are arranged, the limiting holes 44 are uniformly distributed on the outer side of the auxiliary nut 42, and each limiting hole 44 and each C-shaped clamping groove 43 are arranged in a staggered mode;

when the nut 4 is connected with the main screw 2, the auxiliary nut 42 passes through the limit post 54 to be connected with the auxiliary screw 3 through the C-shaped clamping groove 43, and after the main nut 4 is connected with the main screw 2 in place, the limit hole 44 can be connected with the bottom end of the limit post 54, so that the nut 4 is prevented from rotating.

The limiter 5 comprises a round table 51, a rotating shaft 52, a connecting plate 53 and a limiting column 54, wherein the bottom surface of the round table 51 is connected with the top end of the rotating shaft 52 through a bearing, and the bottom end of the rotating shaft 52 is nested in the round hole 6 and connected with the top end of the spring 7; three identical connecting plates 53 are uniformly distributed on the outer side of the top end of the round table 51, and limit posts 54 are respectively arranged on the outer sides of the connecting plates 53, and the top ends of the limit posts 54 are level with the top end of the round table 51; the position of the limit post 54 corresponds to the positions of the C-shaped clamping grooves 43 and the limit holes 44; the limit post 54 is nested in the C-shaped clamping groove 43 in the initial rotation state;

when the nut 4 is connected with the main screw 2, the limiter 5 can rotate along with the nut 4 through the arrangement of the rotating shaft 52 and the limiting post 54, after the nut 4 is connected with the main screw 2 in place, the limiter 5 can be pulled outwards through the arrangement of the spring 7, and the limiting post 5 is inserted into the corresponding limiting hole 44, so that the limiting work of the nut 4 and the main screw 2 is completed.

In this embodiment, first, the main screw 2, the auxiliary screw 3 and the limiter 5 are passed through the fixing holes of the parts to be fixed, then the main nut 41 is passed through the limiter 5, when the main screw 41 passes through the fixing holes, the C-shaped clamping grooves 43 of the auxiliary screw 42 correspond to the positions of the limiting posts 54, the limiting posts 54 are nested in the C-shaped clamping grooves 43, at this time, the auxiliary screw 42 is turned, the limiter 5 is rotated, after the main screw 41 and the main screw 2 are connected in place, the limiter 5 is pulled outwards, then the limiter 5 is rotated through the rotating shaft 52, the positions of the limiting posts 54 correspond to the positions of the limiting holes 44, and finally the bottom ends of the limiting posts 54 are nested in the limiting holes 44, at this time, the limiting posts 54 always bear against the nuts 4, so that the main screw 2 and the nuts 4 are limited, no matter what vibration the parts vibrate, the nuts 4 and the main screw 2 and the auxiliary screw 3 are loose, so that the safety and reliability are improved.

By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.

Claims

1. A bolt fastener with stop device, its characterized in that: including six arriss heads (1), main screw rod (2), vice screw rod (3), nut (4) and stopper (5), wherein: the upper surface of the hexagonal head (1) is connected with the bottom end of the main screw rod (2), the top end of the main screw rod (2) is connected with the bottom end of the auxiliary screw rod (3), and the top end of the auxiliary screw rod (3) is connected with the limiter (5) in a nested way; the nut (4) is connected with the main screw (2) and the auxiliary screw (3).

2. A bolt fastener with a spacing device as claimed in claim 1, wherein: a round hole (6) is formed in the top end of the auxiliary screw rod (3), and a spring (7) is arranged in the round hole (6).

3. A bolt fastener with a spacing device as claimed in claim 1, wherein: the nut (4) comprises a main nut (41), an auxiliary nut (42), a clamping groove (43) and a limiting hole (44), one end of the main nut (41) is connected with one end of the auxiliary nut (42), the main nut (41) is connected with the main screw (2), and the auxiliary nut (42) is connected with the auxiliary screw (3); three clamping grooves (43) are formed, and the clamping grooves (43) are uniformly distributed and are formed in the inner surface of the auxiliary nut (42) in a penetrating mode; three limiting holes (44) are formed, the limiting holes (44) are uniformly distributed on the outer side of the auxiliary nut (42), and the limiting holes (44) and the clamping grooves (43) are staggered; the main nut (41) and the auxiliary nut (42) are coaxial.

4. A bolt fastener with a limiting device as defined in claim 2, wherein: the limiter (5) comprises a round table (51), a rotating shaft (52), a connecting plate (53) and a limiting column (54), wherein the bottom surface of the round table (51) is connected with the top end of the rotating shaft (52) through a bearing, and the bottom end of the rotating shaft (52) is nested in the round hole (6) and connected with the top end of the spring (7); three identical connecting plates (53) are uniformly distributed on the outer side of the top end of the round table (51), and limit columns (54) are respectively arranged on the outer sides of the connecting plates (53), and the top ends of the limit columns (54) are level with the top end of the round table (51); the positions of the limiting posts (54) correspond to the positions of the clamping grooves (43) and the limiting holes (44).

5. A bolt fastener with a limiting device as defined in claim 3, wherein: the diameter of the main screw rod (2) is larger than that of the auxiliary screw rod (3), the inner diameter of the main nut (41) is larger than that of the auxiliary screw rod (42), the inner diameter of the main nut (41) is larger than the total width of the auxiliary screw rod (3) and the limiting column (54), the inner diameter of the auxiliary nut (42) is smaller than that of the main screw rod (2), the inner diameter of the main nut (41) is identical with that of the main screw rod (2), and the inner diameter of the auxiliary nut (42) is identical with that of the auxiliary screw rod (3).