Non-disassembly anti-loosening assembly for preventing iron tower bolt from loosening

Abstract

The invention provides a non-detachable anti-loosening assembly for preventing connection loosening of an angle steel bolt. The non-detachable anti-loosening assembly comprises two asymmetric anti-loosening locking gaskets and two auxiliary axial anti-loosening gaskets. The asymmetric anti-loose locking gasket adopts a structure which is asymmetric to the position of the center hole, the distance between each edge and the center hole is different, and the distance between the asymmetric anti-loose locking gasket and the vertical surface of the bottom side of the angle steel can be flexibly adjusted according to the specification of a bolt and the distance between the angle steel, so that the asymmetric anti-loose locking gasket is suitable for connection of the angle steel of different specifications. According to the anti-loose gasket, rotation of the outer edge of the asymmetric anti-loose locking gasket arranged on the nut in a sleeving mode is limited through the vertical face of the bottom side of the angle steel so that the nut can be prevented from loosening and rotating, and nut loosening can be effectively prevented under the long-term vibration or load effect. In addition, an auxiliary axial anti-loosening gasket is additionally arranged below the asymmetric anti-loosening gasket, the asymmetric anti-loosening locking gasket is prevented from loosening in the axial direction of the bolt, and the anti-loosening assembly is connected more stably.

Description

Technical Field

[0001] The present invention relates to the field of tower bolt anti-loosening, and specifically to a non-detachable anti-loosening component for tower bolts. Background Art

[0002] The angle steel connection bolts, as key fasteners in the tower structure, are mainly used to support and fix each structural unit of the tower to ensure the stability and load-bearing capacity of the overall structure. During long-term use, due to the influence of various factors such as wind alternating loads, vibrations, temperature changes, and material creep on the bolts of the angle steel connection, the bolts gradually loosen, thereby affecting the safety and service life of the tower structure. Currently, traditional bolt anti-loosening methods mainly include spring washers, double-nut locking, nylon locking nuts, and wedge-shaped anti-loosening washers, etc. However, these methods still have the risk of failure under complex working conditions such as high vibration and high wind loads. For example, the spring washer is prone to plastic deformation due to long-term stress, resulting in a reduced anti-loosening effect; the double-nut locking method may spin loose in a high-vibration environment; although the wedge-shaped anti-loosening washer can increase friction, it may also become loose after improper installation or long-term use. Therefore, the existing anti-loosening technologies are still difficult to meet the requirements of the long-term stable operation of the tower structure under certain extreme working conditions. In addition, for the existing bolt anti-loosening by adding anti-loosening devices, the nut needs to be disassembled to add components, which greatly increases the operation and maintenance costs and construction difficulties. Especially when working at high altitudes or in harsh environments, the traditional anti-loosening methods are difficult to ensure the long-term stability of the bolt connection. Therefore, a non-detachable anti-loosening component that does not require bolt disassembly, is easy to install, and can effectively prevent bolt loosening for a long time is needed to improve the safety and durability of the tower structure.

[0003] Based on the above problems, the present invention provides a non-detachable anti-loosening component for preventing the loosening of angle steel bolt connections, which includes two asymmetric anti-loosening stop washers and two auxiliary axial anti-disengagement washers. The asymmetric anti-loosening stop washer of the present invention adopts an asymmetric structure with respect to the position of the central hole, and the distances from each side to the central hole are different. The distance between the asymmetric anti-loosening stop washer and the vertical plane of the bottom side of the angle steel can be flexibly adjusted according to the bolt specifications and the spacing of the angle steels, so that it is applicable to the connections of different specifications of angle steels. The anti-loosening washer prevents the nut from loosening and rotating by restricting the rotation of the outer edge of the asymmetric anti-loosening stop washer sleeved on the nut through the vertical plane of the bottom side of the angle steel, and effectively prevents the nut from loosening under long-term vibration or load. In addition, an auxiliary axial anti-disengagement washer is added below the asymmetric anti-loosening washer to prevent the asymmetric anti-loosening stop washer from disengaging along the axial direction of the bolt, making the connection of the anti-loosening component more stable. The above components cooperate with each other, and the anti-loosening component can be added without disassembling the nut during application, with simple and fast installation, reducing the need for manual tightening and maintenance, and is particularly suitable for steel structure projects such as iron towers that are affected by external factors such as long-term wind loads and vibrations. Summary of the Invention

[0004] The object of the present invention is to provide a non-detachable anti-loosening component that can enhance the anti-loosening effect, adapt to different bolt sizes and angle steel spacings, and reduce the risk of loosening of angle steel connection bolts. This component does not require disassembling the bolts and nuts, is convenient to install, and is applicable to environments affected by long-term vibration and wind loads.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A non-detachable component for preventing the loosening of tower bolts, comprising a front asymmetric anti-loosening stop washer (1), a rear asymmetric anti-loosening stop washer (2), a front auxiliary axial anti-disengagement washer (3), and a rear auxiliary axial anti-disengagement washer (4). It is characterized in that a hexagonal through-hole with the same cross-section as the hexagonal bolt nut is opened inside the front asymmetric anti-loosening stop washer (1), which is sleeved at the position of the bolt hexagonal head. The parallel side support surface on one side of the washer forms a parallel relationship with the bottom surface of the angle steel (this parallel side can be a polygon) to prevent the bolt from rotating. A through-hole with the same cross-section as the hexagonal nut is opened inside the rear asymmetric anti-loosening stop washer (2), which is sleeved at the position of the nut hexagonal head. The parallel side support surface on one side of the washer forms a parallel relationship with the bottom surface of the angle steel (this parallel side can be a polygon) to prevent the nut from rotating. Through the front and rear asymmetric anti-loosening stop washers, both the rotation of the bolt and the rotation of the nut are restricted, achieving the purpose of anti-loosening. The distances between the central holes of the front and rear asymmetric anti-loosening stop washers (1) and (2) and their respective shaped sides adopt an asymmetric polygon structure. Different support sides can be selected according to the vertical distance between the bolt and the angle steel. When there are N kinds of distances between the angle steel model and the bolt central hole, an N-sided polygon can be set to ensure that the support side of each type of angle steel can prevent the bolt from rotating through the vertical surface of the bottom-side angle steel, improving the applicability. The open side of the front auxiliary axial spring anti-disengagement washer (3) is inserted into the gap between the nut and the angle steel below, and the other side of the washer passes through the hexagonal hole of the front asymmetric anti-loosening stop washer (1) during installation and is bent to prevent the front asymmetric anti-loosening stop washer from moving along the screw direction and prevent the washer from loosening. The open side of the rear auxiliary axial anti-disengagement washer (4) is inserted between the hexagonal bolt and the angle steel, and the other side of the washer passes through the inner hexagonal hole of the rear asymmetric anti-loosening stop washer (2) during installation and is bent to prevent the rear asymmetric anti-loosening stop washer from moving along the screw direction and prevent the washer from loosening.

[0007] The beneficial effects of the present invention:

[0008] The present invention provides a non-detachable anti-loosening component for angle steel connecting bolts, which includes bolts, two asymmetric anti-loosening washers, two auxiliary anti-loosening washers, and angle steel. The asymmetric anti-loosening washer of the present invention adopts a special asymmetric polygon structure, with a hexagonal structure identical to that of the nut opened inside and a polygon structure opened outside. The lengths of the sides of the polygon from the center hole of the bolt are different. The supporting surface of the asymmetric anti-loosening washer is flexibly selected according to the distance between the bolt hole of different specifications of angle steel and the vertical plane at the bottom side of the angle steel, so that it is applicable to the connection of different specifications of angle steel. The anti-loosening washer forms a parallel structure through the outer supporting surface of the asymmetric anti-loosening washer and the vertical plane at the bottom side of the angle steel to achieve a stopping effect, effectively preventing the nut from loosening under long-term vibration or load. In addition, a spring anti-detachment washer is sleeved at the opening of the asymmetric anti-loosening washer to prevent the asymmetric anti-loosening washer from axially falling off, making the bolt connection more stable. The above components cooperate with each other, enabling the present invention to maintain the bolt fastening state during long-term use, without frequent manual maintenance, improving the installation convenience, and adapting to different bolt specifications and angle steel spacings. The present invention has the advantages of good anti-loosening effect, wide application range, long service life, and simple installation, and is particularly suitable for steel structure projects such as iron towers that are affected by external factors such as long-term wind loads and vibrations, solving the problems of limited application range of existing anti-loosening technologies, high maintenance costs, and easy failure in complex environments. Brief Description of the Drawings

[0009] Figure 1 is an exploded view of a non-detachable anti-loosening component for iron tower bolts, wherein, front asymmetric anti-loosening stop washer (1), rear asymmetric anti-loosening stop washer (2), front auxiliary axial anti-detachment washer (3), rear auxiliary axial anti-detachment washer (4);

[0010] Figure 2 is a front view of the state before the front auxiliary axial anti-detachment washer (3) and the rear auxiliary axial anti-detachment washer (4) are sleeved into the anti-loosening washer;

[0011] Figure 3 is a view of the state where the front asymmetric anti-loosening stop washer (1) and the rear asymmetric anti-loosening stop washer (2) are sleeved into the front auxiliary axial anti-detachment washer (3) and the rear auxiliary axial anti-detachment washer (4);

[0012] Figure 4 is a view of the front asymmetric anti-loosening stop washer (1) and the rear asymmetric anti-loosening stop washer (2) attached to the bottom side of the side wall of the angle steel;

[0013] Figure 5 is a view of the front auxiliary axial anti-detachment washer (3) and the rear auxiliary axial anti-detachment washer (4) being bent to limit axial movement;

[0014] Figure 6Part drawing of the asymmetric polygon lock washer (1) and the rear asymmetric polygon lock washer (2), where the distance from the center of the part to the edge is H n， n is the distance between the vertical plane at the bottom side of the angle steel of n models and the bolt center hole; Specific implementation mode

[0014] The present invention will be described in detail below with reference to the accompanying drawings. However, it should be understood that the provision of the drawings is only for those skilled in the art to further understand the present invention, but does not limit the present invention in any form.

[0015] As Figure 1 shown, the present invention provides a non-detachable assembly for preventing the loosening of tower bolts. Taking the hexagon as an example, it can be applied to polygons, including a front asymmetric hexagon lock washer (1), a rear asymmetric hexagon lock washer (2), a front auxiliary axial anti-disengagement washer (3) and a rear auxiliary axial anti-disengagement washer (4). Among them, the front asymmetric hexagon lock washer (1) and the rear asymmetric hexagon lock washer (2) are respectively sleeved on the head of the bolt hexagon head and the nut, restricting the rotation of the bolt and the rotation of the nut, so as to achieve the purpose of preventing the nut from rotating. It is characterized in that the front auxiliary axial anti-disengagement washer (3) is inserted into the head of the bolt hexagon head and passes through the lower part of the inner hexagon hole (1) of the front asymmetric lock washer. After the front asymmetric lock washer (1) is sleeved on the head of the bolt hexagon head, the front auxiliary axial anti-disengagement washer (3) is bent by 90°, preventing the front asymmetric lock washer (1) from loosening along the axial direction of the bolt; the rear auxiliary axial fixing washer (4) is inserted under the nut and passes through the lower part of the inner hexagon hole (2) of the front asymmetric lock washer. After the front asymmetric lock washer (2) is sleeved on the nut, the front auxiliary axial anti-disengagement washer (4) is bent by 90°, preventing the front asymmetric lock washer (2) from loosening along the axial direction of the bolt; ensuring the long-term stability of the bolt connection and preventing loosening problems caused by external forces such as vibration and wind load.

[0016] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific implementation modes. Those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A non-detachable component for preventing the loosening of tower bolts, comprising a front asymmetric anti-loosening stop washer (1), a rear asymmetric anti-loosening stop washer (2), a front auxiliary axial anti-disengagement washer (3), and a rear auxiliary axial anti-disengagement washer (4).

2. The non-detachable component for preventing the loosening of tower bolts according to claim 1, characterized in that, The front asymmetric anti-loosening stop washer (1) is internally provided with a hexagonal through-hole having the same cross-section as the hexagonal bolt nut, and is sleeved at the position of the bolt hexagonal head. The parallel side support surface on one side of the washer forms a parallel relationship with the bottom surface of the angle steel (this parallel side can be a polygon), preventing the bolt from rotating. The rear asymmetric anti-loosening stop washer (2) is internally provided with a through-hole having the same cross-section as the hexagonal nut, and is sleeved at the position of the nut hexagonal head. The parallel side support surface on one side of the washer forms a parallel relationship with the bottom surface of the angle steel (this parallel side can be a polygon), preventing the nut from rotating. By means of the front and rear asymmetric anti-loosening stop washers, both the rotation of the bolt and the rotation of the nut are restricted, achieving the purpose of anti-loosening. The distance between the center hole and each side of the front and rear asymmetric anti-loosening stop washers (1), (2) adopts an asymmetric polygon structure, and different support sides can be selected according to the vertical distance between the bolt and the angle steel. When there are N kinds of distances between the angle steel model and the bolt center hole, an N-sided polygon can be set to ensure that the support side of each type of angle steel can prevent the bolt from rotating through the vertical plane of the bottom side angle steel, improving the applicability. The opening side of the front auxiliary axial spring anti-disengagement washer (3) is inserted into the gap between the nut and the angle steel, and the other side washer passes through the hexagonal hole of the front asymmetric anti-loosening stop washer (1) during installation and is bent to prevent the front asymmetric anti-loosening stop washer from moving along the screw rod direction and prevent the washer from loosening; the opening side of the rear auxiliary axial anti-disengagement washer (4) is inserted between the hexagonal bolt and the angle steel, and the other side washer passes through the internal hexagonal hole of the rear asymmetric anti-loosening stop washer (2) during installation and is bent to prevent the rear asymmetric anti-loosening stop washer from moving along the screw rod direction and prevent the washer from loosening.

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