Anti-loose and anti-theft bolt

Abstract

The utility model relates to the technical field of fasteners, and provides an anti-loose anti-theft bolt which comprises a first lock nut, the first lock nut is provided with a first through hole, the first through hole is provided with a mounting groove and a threaded part, the threaded part is provided with a wedge-shaped groove, an anti-loose ring is arranged in the mounting groove, the inner diameter of the anti-loose ring is the same as that of the threaded part, and an anti-loose ball is arranged in the wedge-shaped groove. The screw is in threaded connection with the first lock nut. By means of the technical scheme, the problem that in the prior art, an anti-loosening and anti-theft bolt is poor in anti-loosening performance is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fastener, specifically, relate to a kind of anti-loose anti-theft bolt. BACKGROUND

[0002] In many mechanical connection fields, as a commonly used connecting piece, the anti-loose and anti-theft performance of bolt has always been a key problem that is concerned and urgently to be solved, and the traditional bolt has many obvious limitations and deficiencies in practical application.

[0003] From the anti-loose angle, the early ordinary bolt simply relies on the friction between threads to maintain the fastening state. However, under actual working conditions, the equipment often faces various complex external force influences, such as continuous vibration generated by machine operation, impact during transportation, thermal expansion and contraction caused by temperature change, etc. These factors can easily destroy the limited friction between threads, causing the bolt to loosen, and thus causing the components at the connection site to displace and sway, affecting the normal operation of the equipment, and even possibly causing safety accidents. For example, in scenarios such as automobile engines, bridge structures, and industrial production lines that require high connection reliability, the consequences of bolt loosening are unimaginable.

[0004] In order to improve the anti-loose performance, some traditional anti-loose measures have emerged, such as using spring washers and double nuts. Although spring washers can increase the axial pressure on the bolt to some extent, thereby improving the friction to prevent loosening, they are prone to elastic fatigue after long-term exposure to alternating loads, resulting in a gradual decline in their anti-loose ability and an inability to continuously and effectively prevent bolt loosening. Double nuts achieve anti-loose by increasing the friction between the nuts and mutual restraint, but their installation and removal are relatively cumbersome, and in some complex working conditions with high vibration and limited space, the anti-loose effect is not ideal, and the problem of bolt loosening is still difficult to completely solve.

[0005] In terms of theft prevention, traditional bolts are simple in structure and can be easily removed by relevant personnel using conventional tools, which is particularly prominent in unattended and widely distributed places such as outdoor public facilities, power equipment, communication base stations, etc. Once the bolt is stolen, the structural integrity of the relevant facility will be compromised, not only causing property loss, but also potentially endangering public safety, such as road lamp pole bolts being stolen causing the road lamp to fall, power tower bolts being stolen possibly causing power failure, etc. INVENTION CONTENTS

[0006] The utility model provides a kind of anti-loose anti-theft bolt, solve the problem of poor anti-loose performance of anti-loose anti-theft bolt in relevant technology.

[0007] The technical solution of the utility model is as follows:

[0008] A kind of anti-loose theft-proof bolt, comprising:

[0009] First lock nut, the first lock nut has first through-hole, the first through-hole has installation slot and threaded portion, the threaded portion has wedge-shaped slot,

[0010] Anti-loose ring, the anti-loose ring inner diameter is same with the threaded portion inner diameter,

[0011] Anti-loose ball, the anti-loose ball is arranged in the wedge-shaped slot.

[0012] As a further technical solution, the threaded portion has containing groove, the anti-loose ring has anti-drop portion, the containing groove leads to the wedge-shaped slot, the anti-drop portion is located in the containing groove, for pressing the anti-loose ball.

[0013] As a further technical solution, further comprising:

[0014] Bolt, the first lock nut is arranged on the bolt.

[0015] As a further technical solution, the anti-drop portion is used to be embedded by the thread of the bolt.

[0016] As a further technical solution, the anti-drop portion and the anti-drop bead are several.

[0017] As a further technical solution, the diameter of the anti-drop bead is same with the thickness of the threaded portion.

[0018] The working principle and beneficial effect of the utility model are:

[0019] In the utility model, the inner diameter of anti-loose ring is same with the threaded portion inner diameter, this design makes that anti-loose ring can be closely attached with threaded portion, after installation, it can form a kind of ring type protection along the inner wall of threaded portion.When there is external force to try to loosen the bolt, such as axial tension, impact force produced by vibration, etc., anti-loose ring can rely on this close attachment state, share a part of external force, and resist external force by its structural characteristics, reduce the loosening pressure borne by threaded portion, further stabilize the connection state of bolt, enhance the anti-loose effect as a whole.

[0020] Anti-loose ring is placed in installation slot, and anti-loose ball and threaded portion etc. component jointly constructs a cooperative anti-loose mechanism.It is the support of anti-loose ball to play a role, and can be mutually matched with threaded portion, and restricts the possible loosening from different angles.

[0021] The anti-loosening ball is arranged in the wedge-shaped groove, and the main function is to enhance the anti-loosening performance in the local area of the threaded connection. During the operation of the bolt, especially when subjected to external force interference, the anti-loosening ball will generate contact force with the inner wall of the wedge-shaped groove and other threaded components matched therewith. Due to the shape characteristics of the wedge-shaped groove, the position and stress state of the anti-loosening ball in the wedge-shaped groove will automatically adjust with the change of the external force. For example, when subjected to a torsional external force, the anti-loosening ball will be clamped at a specific position of the wedge-shaped groove, thereby increasing the resistance to relative rotation between the threads, accurately preventing the loosening of the threads from the micro level, providing key local anti-loosening protection for the entire bolt connection, and effectively reducing the risk of overall loosening of the bolt caused by the accumulation of slight displacement. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner in combination with the drawings.

[0023] Fig. 1 The present application is a structural schematic diagram.

[0024] Fig. 2 The present application is a partial structural schematic diagram.

[0025] Fig. 3 The present application is a first lock nut partial structural schematic diagram.

[0026] In the figure: first lock nut-1, first through hole-101, mounting groove-102, threaded part-103, wedge-shaped groove-104, containing groove-107, anti-loosening ring-2, anti-loosening ball-3. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the specific implementation modes of the present application will be described below in combination with the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0028] In order to make the drawing simple and clear, only the parts related to the present application are shown in each drawing, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this article, it is necessary to point out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] Reference Figs. 1-3 For the first embodiment of the utility model, a locking bolt is provided, which comprises a first lock nut 1, the first lock nut 1 has a first through hole 101, the first through hole 101 has a mounting groove 102 and a threaded portion 103, the threaded portion 103 has a wedge-shaped groove 104, a locking ring 2 is arranged in the mounting groove 102, the inner diameter of the locking ring 2 is the same as the inner diameter of the threaded portion 103, and a locking ball 3 is arranged in the wedge-shaped groove 104.

[0032] In the embodiment, the first through hole 101 of the first lock nut 1 is a very key part in the whole bolt structure, which bears multiple functions. On the one hand, the mounting groove 102 arranged inside provides a specific mounting space for the locking ring 2, so that the locking ring 2 can be accurately placed therein, ensuring the basic positioning for the subsequent anti-loosening function; on the other hand, the threaded portion 103 is used to cooperate with other threaded components (such as a screw rod, etc.) for connection, realizing the basic fastening function of the bolt, and the design of the wedge-shaped groove 104 further creates a unique action site for the locking ball 3, laying the foundation for the whole anti-loosening and anti-theft mechanism.

[0033] The arrangement of the mounting groove 102 enables the locking ring 2 to be closely and stably positioned at a specific position inside the first lock nut 1. During installation, the operator can clearly place the locking ring 2 against the mounting groove 102, which is convenient for operation and ensures the accuracy of installation. At the same time, the cooperation of the mounting groove 102 and the locking ring 2 also helps to maintain the position stability of the locking ring 2 during use, avoiding displacement due to external force and other factors, thereby ensuring the continuous effectiveness of the anti-loosening function, so that it cooperates with other components to prevent the bolt from loosening.

[0034] The threaded part 103 itself is a basic structure for realizing bolt connection fastening, and can provide reliable axial tension and friction force through thread cooperation with the corresponding screw rod, ensuring the stability of the connection. The design of the wedge-shaped groove 104 is particularly ingenious, which breaks the limitation that traditional threaded connections are prone to loosening. The special shape of the wedge-shaped groove 104 allows the locking ball 3 to be embedded therein, and when the bolt is subjected to vibration, external force torsion, etc., the locking ball 3 can generate a force that restricts each other with other components by using the inclined surface structure of the wedge-shaped groove 104, effectively preventing relative displacement between threads, thereby greatly enhancing the anti-loosening performance of the bolt and strengthening the reliability of the entire connection from a microscopic level.

[0035] The inner diameter of the locking ring 2 is the same as that of the threaded part 103, which allows the locking ring 2 to closely fit with the threaded part 103, and after installation, it can form a ring-shaped protection along the inner wall of the threaded part 103. When external forces attempt to loosen the bolt, such as axial tension, impact force generated by vibration, etc., the locking ring 2 can share part of the external force due to this close-fitting state, and resist the external force through its own structural characteristics, reducing the loosening pressure on the threaded part 103, further stabilizing the connection state of the bolt, and enhancing the anti-loosening effect as a whole.

[0036] The locking ring 2 is placed in the installation groove 102 and cooperates with the locking ball 3 and the threaded part 103 to form a coordinated anti-loosening mechanism. It not only relies on the locking ball 3 to function, but also cooperates with the threaded part 103 to limit loosening from different angles.

[0037] The locking ball 3 is arranged in the wedge-shaped groove 104, and its main function is to enhance the anti-loosening performance in the local area of the threaded connection. During the operation of the bolt, especially when subjected to external interference, the locking ball 3 will generate contact force with the inner wall of the wedge-shaped groove 104 and other threaded components cooperating therewith. Due to the shape characteristics of the wedge-shaped groove 104, the position and stress state of the locking ball 3 in it will automatically adjust with the change of external force. For example, when subjected to torsional external force, the locking ball 3 will be stuck in a specific position of the wedge-shaped groove 104, increasing the resistance to relative rotation between threads, and precisely preventing loosening of the threads from a microscopic level, providing key local anti-loosening protection for the entire bolt connection, and effectively reducing the risk of overall loosening of the bolt due to the accumulation of small displacements.

[0038] Further, the threaded part 103 has a container groove 107, and the locking ring 2 has a locking portion 201, the container groove 107 leads to the wedge-shaped groove 104, and the locking portion 201 is located in the container groove 107 and used to press the locking ball 3.

[0039] In this embodiment, the threaded portion 103 is provided with the container groove 107, and the anti-extraction portion 201 of the anti-loose ring 2 is located in the container groove 107 and used to press the anti-loose ball 3. This design makes the position of the anti-loose ball 3 in the wedge-shaped groove 104 more accurate and stable. When the bolt is subjected to vibration, impact or external force trying to loosen it, the anti-loose ball 3 originally relies on the structure of the wedge-shaped groove 104 to hinder the relative movement of the threads, and now the anti-extraction portion 201 further presses it from the side, making it more difficult to have unnecessary displacement or roll in the wedge-shaped groove 104, strengthening the anti-loose restriction of the anti-loose ball 3 on the threaded portion 103, greatly reducing the possibility of thread loosening caused by external interference, further consolidating the anti-loose effect of the bolt as a whole, and enabling it to maintain a stable connection state under more severe working conditions.

[0040] Through the pressing of the anti-loose ball 3 by the anti-extraction portion 201, a more multi-level anti-loose system is constructed in cooperation with the existing anti-loose ring 2, anti-loose ball 3, threaded portion 103 and other structures. The anti-loose ring 2 overall protects and shares the force on the threaded portion 103, the anti-loose ball 3 limits the thread movement from a micro-local part in the wedge-shaped groove 104, and the anti-extraction portion 201 further strengthens this limitation for the anti-loose ball 3, resisting the influence of external force on the bolt connection from different levels and angles, forming a three-dimensional and all-around anti-loose network. Whether it is axial tension, pressure, or radial torsional force, etc., it can be more effectively resisted by this anti-loose system, ensuring the reliability of the bolt connection in complex and variable stress environments.

[0041] The anti-extraction portion 201 is located in the container groove 107 to press the anti-loose ball 3, making the cooperation between the anti-loose ring 2, the threaded portion 103 and the anti-loose ball 3 more closely and optimally. Instead of relatively independent anti-loose effect, the components form an organic whole through this close connection and interaction. For example, when external force acts on the bolt, the force transmission will follow a more reasonable path between the components. The anti-loose ring 2 transmits part of the force to the anti-loose ball 3 through the anti-extraction portion 201, and the anti-loose ball 3 feeds back the force to the threaded portion 103 through the action with the wedge-shaped groove 104, so that the entire structure can cooperate with the force and resist loosening, improving the efficiency of the components working together and enhancing the ability to resist external forces.

[0042] Due to the compression of the anti-loose part 201 to the anti-loose ball 3 and the enhancement of the cooperation between the components, the stability of the entire bolt structure is significantly improved. During long-term use, even if it is frequently affected by various external forces and environmental factors (such as temperature changes, humidity changes, etc.), the relative positions between the components can still remain relatively stable, avoiding the problem of reduced anti-loose function caused by component loosening, displacement, etc. This ensures that the bolt maintains good anti-loose performance during long-term operation, prolongs the service life of the bolt, reduces the need for frequent maintenance or replacement due to bolt loosening, and reduces the use cost.

[0043] Further, the bolt is provided with the first lock nut 1.

[0044] In this embodiment, the first lock nut 1 is provided on the bolt, forming a complete connection assembly. In actual application, the bolt serves as the main connecting piece, responsible for passing through the connected objects, while the first lock nut 1 plays a key role in tightening and anti-loose. The two work together to complete the connection task and ensure the stability of the connection part. This integrated design makes the entire connection structure more complete, avoiding the problems of size mismatch and poor compatibility that may be caused by separately searching for suitable bolts and lock nuts, improving the reliability and efficiency of the connection, and better meeting the connection needs of various devices and structures.

[0045] The first lock nut 1 mentioned earlier has structures such as the installation groove 102, the threaded part 103, and the wedge-shaped groove 104, as well as corresponding anti-loose components such as the anti-loose ring 2 and the anti-loose ball 3. When combined with the bolt, they can more effectively cooperate to achieve the anti-loose and anti-theft functions. After the bolt passes through the connected components, it generates axial tension and friction force through the threaded cooperation with the first lock nut 1, tightening the connection. The anti-loose structure inside the first lock nut 1 prevents loosening during use, such as when subjected to vibration, external force twisting, etc. The anti-loose ring 2, anti-loose ball 3, etc. components work according to the design mechanism to prevent the threads between the bolt and the first lock nut 1 from loosening, and also increase the difficulty of illegal disassembly to some extent, achieving anti-loose and anti-theft integration, and ensuring the long-term safety and stability of the connection part.

[0046] Further, the anti-loose part 201 is used for embedding the thread of the bolt.

[0047] In this embodiment, the anti-escape part 201 can be embedded by the thread of the bolt, which greatly enhances the anti-loosening effect at the micro level. When the bolt is screwed with the first lock nut 1, the thread is embedded in the anti-escape part 201, so that a more close and direct connection relationship is established between the anti-loosening ring 2 and the bolt. When the bolt is subjected to vibration, impact or external force trying to loosen the bolt, the mutual embedding of the thread and the anti-escape part 201 can effectively prevent the anti-loosening ring 2 from producing any slight axial or radial displacement relative to the bolt, thereby fundamentally inhibiting the loosening of the thread caused by the relative movement of the parts and further consolidating the anti-loosening performance of the entire bolt connection, so that it can still maintain a stable connection state under extremely harsh and complex working conditions (such as high-frequency vibrating mechanical equipment, frequently impacted outdoor facilities, etc.).

[0048] Previously, the anti-loosening ring 2 cooperated with the anti-loosening ball 3 in the wedge-shaped groove 104 to prevent loosening by means of the same inner diameter of the anti-loosening ring 2 and the thread part 103, and now the anti-escape part 201 is embedded by the thread, which adds another key anti-loosening line. This multi-dimensional anti-loosening mechanism cooperates and complements each other to form a comprehensive and dead-angle-free anti-loosening system. Whether it is axial tension, pressure, or radial torsional force, external forces in various directions will be effectively resisted by this comprehensive anti-loosening system when acting on the bolt connection, thereby minimizing the possibility of bolt loosening and ensuring the reliability of the connection part during long-term use, especially for critical equipment and important structures with extremely high connection stability requirements.

[0049] Further, the anti-escape part 201 and the anti-escape bead 3 are both several.

[0050] In this embodiment, several anti-escape parts 201 and anti-escape beads 3 are provided, which can prevent loosening and restrict the bolt connection at multiple positions. When the bolt is subjected to vibration, impact or external force torsion, etc., the multiple anti-escape parts 201 are embedded by the thread of the bolt, thereby enhancing the connection stability between the anti-loosening ring 2 and the bolt from different angles and positions, and preventing the anti-loosening ring 2 from producing axial or radial displacement; at the same time, the multiple anti-escape beads 3 are distributed in the wedge-shaped groove 104, which also hinders the relative movement of the thread from multiple local areas, and they work together to build a comprehensive and three-dimensional anti-loosening network, so that no matter which direction the external force acts on the bolt, it can be effectively resisted, thereby greatly reducing the possibility of bolt loosening and ensuring the stability and reliability of the connection part under complex working conditions.

[0051] The plurality of anti-loosening portions 201 and anti-loosening beads 3 change the way force is transmitted and dispersed. When an external force is applied to the bolt, the force is evenly dispersed to the lock ring 2 through the plurality of anti-loosening portions 201, and to the corresponding wedge-shaped grooves 104 and peripheral structures through the plurality of anti-loosening beads 3, avoiding stress concentration in a few parts, so that the force borne by each anti-loosening portion 201, anti-loosening bead 3 and its peripheral structure is relatively small and uniform. This uniform stress state helps to maintain the close fit between the components, prevents deformation of the components and damage to the threads due to excessive local stress, further strengthens the overall anti-loosening effect of the bolt, and enables it to adapt to more severe working environments, such as stable use in mechanical equipment or outdoor facilities with high-frequency vibration and large alternating load.

[0052] The presence of the plurality of anti-loosening portions 201 and anti-loosening beads 3 enables the bolt connection structure to distribute force more evenly in the circumferential and axial directions when under stress. Each anti-loosening portion 201 and anti-loosening bead 3 acts as an independent stress point, and the coordinated work of numerous such stress points ensures that there is no local overload phenomenon during force transmission, and the stress distribution of the entire connection structure is more reasonable and balanced. This helps to improve the overall load-carrying capacity of the bolt assembly, whether it is to withstand large static tension, pressure, or complex dynamic alternating load, etc., and relies on this uniform stress structure feature to ensure stable connection of the components and maintain normal operation of the equipment or structure, enhancing the bolt's ability to cope with complex stress environments.

[0053] Thanks to the plurality of anti-loosening portions 201 and anti-loosening beads 3, the cooperation between the lock ring 2, the first lock nut 1, the bolt and other related components is more tight and better coordinated. The components can constrain and support each other when under stress, forming an organic whole through structures such as anti-loosening portions 201 and anti-loosening beads 3 to jointly bear external forces. This cooperative bearing method further enhances the overall strength of the bolt assembly, reduces the risk of damage due to excessive stress on a single component, and ensures the reliability of the bolt under different working conditions, laying a solid foundation for its long-term stable use in various industrial application scenarios.

[0054] Further, the diameter of the anti-loosening bead 3 is the same as the thickness of the threaded portion 103.

[0055] In the embodiment, the diameter of the anti-loosening bead 3 is the same as the thickness of the threaded portion 103, so that the anti-loosening bead 3 can just fill in the space where the wedge-shaped groove 104 is located, and form a very close and accurate fit with the threaded portion 103. When the bolt is subjected to external force, such as vibration, torsional force, etc., the anti-loosening bead 3 will not shake or shift due to size difference, but can be stably clamped in the wedge-shaped groove 104, and by virtue of the close fit with the threaded portion 103, accurately limit the relative movement between threads from a microscopic level, and maximize the possibility of loosening of the threads caused by external force interference, further consolidate the overall anti-loosening effect of the bolt, so that it can maintain a stable connection state in harsh working conditions, and ensure the long-term reliability of the connection part.

[0056] Due to the accurate matching of the thickness of the anti-loosening bead 3 and the threaded portion 103, a stable anti-loosening structure point is formed at each local position provided with the anti-loosening bead 3. A plurality of such anti-loosening structure points (if there are a plurality of anti-loosening beads 3) are distributed around the threaded portion 103, and together form a strong local anti-loosening network, which cooperates with other anti-loosening components such as the anti-loosening ring 2 to resist the influence of external force on the bolt connection from different angles and different levels, forming a multi-level and all-around anti-loosening system. Whether it is axial tension, pressure, or radial torsional force and other external forces, they can be effectively prevented, and the anti-loosening ability of the bolt in a complex stress environment is enhanced.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A type of anti-loosening and anti-theft bolt, characterized in that, include: The first lock nut (1) has a first through hole (101), the first through hole (101) has a mounting groove (102) and a threaded portion (103), and the threaded portion (103) has a wedge-shaped groove (104). Anti-loosening ring (2), the anti-loosening ring (2) is disposed in the mounting groove (102), the inner diameter of the anti-loosening ring (2) is the same as the inner diameter of the threaded part (103), Anti-loosening ball (3), the anti-loosening ball (3) is disposed in the wedge groove (104).

2. The anti-loosening and anti-theft bolt according to claim 1, characterized in that, The threaded portion (103) has a groove (107), the anti-loosening ring (2) has an anti-detachment portion (201), the groove (107) leads to the wedge groove (104), and the anti-detachment portion (201) is located in the groove (107) for pressing the anti-loosening ball (3).

3. The anti-loosening and anti-theft bolt according to claim 2, characterized in that, Also includes: Bolt, the first lock nut (1) is disposed on the bolt.

4. The anti-loosening and anti-theft bolt according to claim 3, characterized in that, The anti-loosening part (201) is used to be embedded by the threads of the bolt.

5. The anti-loosening and anti-theft bolt according to claim 2, characterized in that, Both the anti-loosening part (201) and the anti-loosening ball (3) are in multiple quantities.

6. The anti-loosening and anti-theft bolt according to claim 2, characterized in that, The diameter of the anti-loosening ball (3) is the same as the thickness of the threaded portion (103).

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