A power transmission tower connecting bolt with anti-loosening limiting structure

Abstract

The utility model relates to electric power engineering technical field, concretely is a kind of transmission tower connecting bolt with anti-loose limiting structure, including bolt main stem;Limiting component, the limiting component includes inlay screw groove, the inlay screw groove is set in the bottom of bolt main stem.This transmission tower connecting bolt with anti-loose limiting structure, by installing limiting component, can be realized when connecting nut and bolt main stem thread connection, limiting screw rod is stretched from inlay seat, in turn pass through the firm hole of firm nut and the limiting perforation of connecting nut, with the mechanical limiting of limiting screw rod with certain deformation capacity through firm hole, limiting perforation formation, subsequent both can utilize the adhesion pressure between firm nut and connecting nut to enhance the friction force of threaded pair, also can form rigid blocking to the displacement of connecting nut by limiting screw rod, avoid connecting nut to produce loosening displacement due to vibration and other factors, and then improve the anti-loose stability of overall connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of power engineering technology, specifically to a transmission tower connecting bolt with an anti-loosening limiting structure. Background Technology

[0002] As a crucial supporting structure for power systems, transmission towers rely primarily on bolts for connection and fixation of their components. However, towers are constantly exposed to the natural environment, subjected to vibrations and impacts caused by factors such as strong winds, earthquakes, and temperature changes. This makes the bolts prone to loosening. Once the bolts loosen or even fall off, the structural stability of the tower may decrease, potentially leading to tower collapse and directly threatening the safe operation of transmission lines. This poses a significant threat to the reliability of the power system and the safety of the power grid. Therefore, it is necessary to use a transmission tower connecting bolt with an anti-loosening limiting structure.

[0003] Traditional power transmission tower bolt connections often rely on a single nut and simple anti-loosening components such as spring washers. Over time, this type of structure is prone to frictional attenuation between the threaded parts in the natural environment, which can lead to bolt loosening. When a single nut shows signs of loosening, there is no additional structure to provide rigid restraint on its displacement, resulting in the continuous accumulation of loosening. Utility Model Content

[0004] The purpose of this utility model is to provide a transmission tower connecting bolt with an anti-loosening limiting structure, to solve the problems mentioned in the background art, where traditional transmission tower bolt connections rely on simple anti-loosening components such as a single nut and spring washer. These components are prone to frictional attenuation between the threaded parts under long-term use in natural environments, leading to bolt loosening. Furthermore, the lack of an additional structure to rigidly constrain the loosening displacement of the single nut results in the continuous accumulation of loosening. To achieve the above objective, this utility model provides the following technical solution: a transmission tower connecting bolt with an anti-loosening limiting structure, comprising a bolt main shaft;

[0005] A limiting component includes a fitting screw groove, which is formed at the bottom of the bolt main rod. A fitting seat is threadedly connected inside the fitting screw groove. A limiting screw rod is fixedly connected inside the fitting seat. A connecting nut is threadedly connected to the side surface of the bolt main rod. A limiting through hole is formed inside the connecting nut.

[0006] In a further preferred embodiment, a stabilizing nut is threaded onto the side surface of the bolt main rod. The stabilizing nut has a stabilizing hole inside. The end of the limiting screw, away from the fitting seat, passes through the stabilizing hole and extends into the limiting through hole. Two limiting screws are symmetrically distributed on both sides of the bolt main rod. By installing the limiting assembly, when the connecting nut is threadedly connected to the bolt main rod, the limiting screw extends from the fitting seat and passes through the stabilizing hole of the stabilizing nut and the limiting through hole of the connecting nut in sequence. The mechanical limiting effect formed by the limiting screw, which has a certain deformation capacity, through the stabilizing hole and the limiting through hole, not only enhances the friction of the threaded pair by utilizing the contact pressure between the stabilizing nut and the connecting nut, but also provides a rigid barrier to the displacement of the connecting nut, preventing loosening due to vibration or other factors. Simultaneously, the symmetrically distributed limiting screws on both sides can distribute the force evenly, thereby improving the overall anti-loosening stability of the connection structure.

[0007] More preferably, a hexagonal bolt head is fixedly connected to the top of the bolt main rod, and a hexagonal groove is formed inside the hexagonal bolt head.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] In this invention, by installing a limiting component, after the connecting nut and the main bolt are threaded together, the limiting screw extends from the fitting seat and passes through the stabilizing hole of the stabilizing nut and the limiting through hole of the connecting nut in sequence. With the mechanical limiting formed by the limiting screw passing through the stabilizing hole and the limiting through hole, which has a certain deformation capacity, the subsequent contact pressure between the stabilizing nut and the connecting nut can be used to enhance the friction of the threaded pair. At the same time, the limiting screw can form a hard block on the displacement of the connecting nut, preventing the connecting nut from loosening due to vibration and other factors. Meanwhile, the limiting screws symmetrically distributed on both sides can be evenly stressed, thereby improving the anti-loosening stability of the overall connection structure. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of the present invention;

[0012] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0013] Figure 4 This is an open-ended three-dimensional structural diagram of the present invention;

[0014] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.

[0016] In the diagram: 1. Bolt main rod; 2. Limiting assembly; 201. Fitting screw groove; 202. Fitting seat; 203. Limiting screw rod; 204. Connecting nut; 205. Limiting through hole; 3. Stabilizing nut; 4. Stabilizing hole; 5. Hexagonal bolt head; 6. Hexagonal groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6 This utility model provides a technical solution: a power transmission tower connecting bolt with an anti-loosening limiting structure, including a bolt main rod 1;

[0019] The limiting component 2 includes a fitting screw groove 201, which is located at the bottom of the bolt main rod 1. A fitting seat 202 is threadedly connected inside the fitting screw groove 201. A limiting screw 203 is fixedly connected inside the fitting seat 202. A connecting nut 204 is threadedly connected to the side surface of the bolt main rod 1. A limiting through hole 205 is provided inside the connecting nut 204. After the connecting nut 204 is threadedly connected to the bolt main rod 1, the limiting screw 203 extends out from the fitting seat 202 and passes through the stabilizing hole 4 of the stabilizing nut 3 and the limiting through hole 205 of the connecting nut 204 in sequence. After the connecting nut 204 is threadedly connected to the bolt main rod 1, the limiting screw 203 extends out from the fitting seat 202 and passes through the stabilizing hole 4 of the stabilizing nut 3 and the limiting through hole 205 of the connecting nut 204 in sequence.

[0020] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a stabilizing nut 3 is threaded onto the side surface of the bolt main rod 1. A stabilizing hole 4 is provided inside the stabilizing nut 3. The end of the limiting screw 203 away from the fitting seat 202 passes through the stabilizing hole 4 and extends into the interior of the limiting through hole 205. The two limiting screws 203 are symmetrically distributed on both sides of the bolt main rod 1. This mechanism avoids the connecting nut 204 from loosening and displacement due to vibration and other factors. At the same time, the symmetrically distributed limiting screws 203 on both sides can bear the force evenly.

[0021] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, a hexagonal bolt head 5 is fixedly connected to the top of the bolt main rod 1, and a hexagonal groove 6 is provided inside the hexagonal bolt head 5.

[0022] The usage and advantages of this utility model: The power transmission tower connecting bolt with anti-loosening limiting structure operates as follows during use:

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, by first installing the limiting component 2, when the connecting nut 204 is threadedly connected to the bolt main rod 1, the limiting screw 203 extends from the fitting seat 202 and passes through the stabilizing hole 4 of the stabilizing nut 3 and the limiting through hole 205 of the connecting nut 204 in sequence. With the mechanical limiting formed by the limiting screw 203 passing through the stabilizing hole 4 and the limiting through hole 205, which has a certain deformation capacity, the subsequent contact pressure between the stabilizing nut 3 and the connecting nut 204 can enhance the friction of the threaded pair, and the limiting screw 203 can form a hard block on the displacement of the connecting nut 204, preventing the connecting nut 204 from loosening due to vibration and other factors. At the same time, the symmetrically distributed limiting screws 203 on both sides can bear the force evenly, thereby improving the anti-loosening stability of the overall connection structure.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power transmission tower connecting bolt with anti-loosening limiting structure, characterized in that, Including the bolted main rod (1); The limiting component (2) includes a fitting screw groove (201), which is opened at the bottom of the bolt main rod (1). The fitting screw groove (201) is threadedly connected to a fitting seat (202). The fitting seat (202) is fixedly connected to a limiting screw rod (203). The side surface of the bolt main rod (1) is threadedly connected to a connecting nut (204). The connecting nut (204) has a limiting through hole (205) inside.

2. The transmission tower connecting bolt with anti-loosening limiting structure according to claim 1, characterized in that: The side surface of the bolt main rod (1) is threaded with a stabilizing nut (3), and the stabilizing nut (3) has a stabilizing hole (4) inside.

3. The transmission tower connecting bolt with anti-loosening limiting structure according to claim 1, characterized in that: The end of the limiting screw (203) away from the fitting seat (202) passes through the stabilizing hole (4) and extends into the interior of the limiting through hole (205). The two limiting screws (203) are symmetrically distributed on both sides of the bolt main rod (1).

4. The transmission tower connecting bolt with anti-loosening limiting structure according to claim 1, characterized in that: The top of the bolt main rod (1) is fixedly connected to a hexagonal bolt head (5), and the interior of the hexagonal bolt head (5) is provided with a hexagonal groove (6).

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