Anti-loosening bolt for aviation

Abstract

The invention discloses a lock bolt for aviation. The lock bolt comprises a shaft part with threads on the outer surface, a head part arranged at one end of the shaft part and a light emitting part arranged at the end, different from the head part, of the shaft part. A first component is arranged on the section, perpendicular to the axis of the shaft part, of the head part, and the first component is used for being connected with a tool for mounting and / or dismounting a bolt; a first through groove and a second through groove are formed in the shaft part in the axis direction, the first through groove penetrates through the shaft part, and at least one end, close to the head part, of the second through groove is communicated with the external environment; the light emitting part comprises a light transmitting area, the second through groove is at least partially located in the light emitting part, and the second through groove and the light emitting part are arranged correspondingly; and the light-transmitting area and the second through groove are in a sealed state.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, and in particular to an anti-loosening bolt for aviation. Background Art

[0002] In the aviation field, bolts are widely used in the connection of various parts. However, due to the harshness of the aviation environment, traditional bolt connections may loosen due to vibration after long-term use, resulting in reduced mechanical performance and increased safety hazards. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an anti-loosening bolt for aviation. Compared with the prior art, the bolt in the scheme disclosed in the present invention has better anti-loosening properties and can prevent the bolt from loosening.

[0004] The present invention is realized by the following technical scheme: The present invention discloses an aviation anti-loosening bolt, comprising a shaft portion with threads on the outer surface, a head portion arranged at one end of the shaft portion, and a light-emitting portion arranged at one end of the shaft portion different from the head portion;

[0005] A first member is arranged on a cross section of the head perpendicular to the axis of the shaft portion, and the first member is used to connect a tool for installing and / or removing the bolt;

[0006] The shaft portion is provided with a first through slot and a second through slot along the axial direction, the first through slot passes through the shaft portion, and at least one end of the second through slot close to the head portion is in communication with the external environment;

[0007] The light exit portion includes a light-transmitting area, the second through groove is at least partially located in the light exit portion, and the second through groove is arranged corresponding to the position of the light exit portion;

[0008] Wherein, the light-transmitting area and the second through groove are in a sealed state.

[0009] For the anti-loosening bolt in the present invention, the thread of the shaft can be a standard thread or other types of threads. The assembly of parts is completed by the cooperation of the shaft and the threaded hole. The head can include heads of different shapes such as a hexagonal head, a hexagonal head, and a slotted head. The specific shape depends on actual needs. The anti-loosening bolt can be installed and disassembled through the head by tools. In order to prevent the shaft of the present invention from loosening during use, the present invention also includes a first through groove, a second through groove and a light outlet. When installing the bolt, the anti-loosening bolt is installed on the threaded groove on the intended part, and the bottom of the threaded groove is in a sealed state. Then, a photocuring adhesive is injected into the first through groove, and the photocuring adhesive flows through the first through groove to the outside of the anti-loosening bolt to fill the gap between the light outlet and the bolt. Then, the light outlet is aligned with the intended light source, and the light enters the light outlet through the second through groove, and the light-transmitting area acts on the photocuring adhesive. Under the action of light, the photocuring adhesive cures quickly to complete the installation of the bolt. The light-transmitting area of ​​the light-emitting portion can be made of a transparent material or a light-transmitting material, such as an optical-grade transparent material. The second through groove can be a circular, rectangular or other shaped through groove, and its position and size are determined according to actual needs. A sealing material or structure can be used to seal the light-transmitting area and the second through groove, such as an optical-grade sealant. The anti-loosening bolt in the present invention can be quickly combined with external parts through the photocuring adhesive, and has a good anti-loosening effect. During the installation process, the curing time of the photocuring adhesive can be artificially controlled, and a longer time is available to adjust the tightness of the anti-loosening bolt, which is convenient for construction and installation.

[0010] Preferably, the light emitting portion includes a limiting member and a combining member connected to the shaft portion;

[0011] A limiting area is formed between the limiting member and the shaft portion, and the combining member is located in the limiting area;

[0012] Wherein, on a plane along a perpendicular axis of the shaft portion, the periphery of the cross section of the coupling member does not protrude beyond the periphery of the cross section of the shaft portion.

[0013] Preferably, the combining member comprises a body, and a limiting groove is provided on an outer surface of the body.

[0014] Preferably, the limiting grooves are arranged in plurality and are spaced apart along the circumference of the body.

[0015] Preferably, a reflective layer is arranged on the surface of the body.

[0016] Preferably, the limiting member comprises a rod, the second through-slot is partially arranged on the rod, a plurality of first lenses are arranged circumferentially at intervals on the outer surface of the rod, and the second through-slot is provided with light outlets corresponding to the first lenses;

[0017] A plurality of second lenses are arranged at intervals in the circumferential direction on the outer surface of the body, the first lens is aligned with the second lens, and the refractive index of the second lens medium is greater than the refractive index of the first lens medium;

[0018] The light outlet, the first lens and the second lens constitute a light-transmitting area, forming a light channel.

[0019] Preferably, the size of the first lens is smaller than the size of the second lens.

[0020] Preferably, a notch is formed on a surface of the limiting groove on one side away from the shaft portion.

[0021] Preferably, the steps of installing the anti-loosening bolts include:

[0022] Install the anti-loosening bolt in the thread groove on the intended component, and the bottom of the thread groove is in a sealed state;

[0023] Injecting light-curing adhesive into the first through groove, the light-curing adhesive flows through the first through groove to the outside of the anti-loosening bolt, and fills the gap between the light-emitting portion and the anti-loosening bolt;

[0024] Confirm and adjust the tightness of the anti-loosening bolt again;

[0025] Insert the light guide into the second through groove, provide the light guide with a light source, and the light emitting part emits light through the light-transmitting area to act on the light-curing adhesive. When the light-curing adhesive is completely cured, the installation of the anti-loosening bolt is completed.

[0026] Preferably, the step of removing the anti-loosening bolt comprises:

[0027] Inserting a heating rod into the first through groove, the heating rod contacts the inner wall of the first through groove until it touches the light-curing adhesive;

[0028] The temperature of at least the end of the heating rod is increased, and the heating rod and the light emitting portion are heat-transferred to increase the temperature of the light emitting portion;

[0029] The light-curing adhesive melts due to the heat. At this time, the anti-loosening bolt is rotated until the anti-loosening bolt is completely out of contact with the thread groove, and the anti-loosening bolt is removed.

[0030] The invention discloses an anti-loosening bolt for aviation. Compared with the prior art:

[0031] This patent proposes an aviation anti-loosening bolt with a light-emitting portion and a limiting portion. The light emitted by the light-emitting portion acts on the light-curing adhesive to achieve the functions of rapid installation and preventing loosening. At the same time, the design of the combined component and the limiting groove can increase the stability and fixity of the light-emitting portion and improve the quality and effect of light output. The method of using a heating rod to heat the light-curing adhesive can realize the removal of the anti-loosening bolt, which is convenient and quick. The anti-loosening bolt can meet the use requirements of aerospace equipment in some special environments and improve the stability and safety of structural connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the anti-loosening bolt in the present invention;

[0033] Figure 2 for Figure 1 A cross-sectional view of the middle anti-loosening bolt along the AA direction;

[0034] Figure 3 for Figure 2 A partial schematic diagram of

[0035] Figure 4 is a structural schematic diagram of a combined component in an embodiment;

[0036] Figure 5 Schematic diagram of the light path in the light-transmitting area;

[0037] Figure 6 A schematic diagram of the completed installation of anti-loosening bolts in a scenario. DETAILED DESCRIPTION

[0038] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various exemplary embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various details to assist in understanding, but these details are to be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and structures may be omitted for clarity and brevity.

[0039] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0040] It will be understood that when an element or layer is referred to as being "on", "connected to" or "coupled to" another element or layer, it may be directly on, directly connected to or coupled to the other element or layer, or one or more intermediate elements or layers may also be present. When an element is referred to as being "directly on" another element or layer, "directly connected to" or "directly coupled to" another element or layer, there is no intermediate element or layer. For example, when a first element is described as being coupled to or coupled to a second element, the first element may be directly coupled to or coupled to the second element, or the first element may be indirectly coupled to or coupled to the second element through one or more intermediate elements. The same reference numerals refer to the same elements. As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items. In addition, when describing embodiments of the present invention, the use of "may" relates to "one or more embodiments of the present invention". When an expression such as "at least one of..." is after a list of elements, the entire list of modified elements is modified, and a single element in the list is not modified. In addition, the term "exemplary" is intended to refer to an example or legend. As used herein, the terms "use," "using," and "used" may be considered synonymous with the terms "utilize," "utilizing," and "utilized," respectively.

[0041] It will be understood that, although the terms first, second, third, etc. may be used in this article to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited to these terms. These terms are used to distinguish an element, component, region, layer or section from another element, component, region, layer or section. Therefore, without departing from the teachings of the exemplary embodiments, the first element, first component, first region, first layer or first section discussed below may be referred to as the second element, second component, second region, second layer or second section. In the accompanying drawings, for clarity of explanation, the sizes of various elements, layers, etc. may be exaggerated.

[0042] For ease of description, spatially relative terms such as "beneath", "below", "lower", "above", "upper", etc. may be used herein to describe the relationship of one element or feature to another element (or elements) or feature (or features) as shown in the drawings. It will be understood that in addition to the orientation depicted in the drawings, the spatially relative terms are intended to also include different orientations of the device in use or operation. For example, if the device in the drawings is flipped, the elements described as being "below" or "below" other elements or features will be oriented as being "above" or "above" the other elements or features. Thus, the term "below" may include both orientations of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0043] The terms used herein are only for the purpose of describing specific exemplary embodiments of the present invention and are not intended to limit the exemplary embodiments of the present invention described. As used herein, the singular forms "a" and "an" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that when used in this specification, the terms "include", "including", "comprise" and / or "comprising" specify the presence of features, wholes, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts and / or groups thereof.

[0044] The present invention is realized by the following technical scheme: The present invention discloses an anti-loosening bolt for aviation, such as Figures 1 to 3 As shown, it includes a shaft portion 1 with a thread on the outer surface, a head portion 2 arranged at one end of the shaft portion 1 and a light exit portion 3 arranged at an end of the shaft portion 1 different from the head portion 2; a first component is arranged on a cross section of the head portion 2 perpendicular to the axis of the shaft portion 1, and the first component is used to connect a tool for installing and / or removing bolts; the shaft portion 1 is provided with a first through groove and a second through groove along the axial direction, the first through groove penetrates the shaft portion 1, and the second through groove is in a connected state with the external environment at least at one end close to the head portion 2; the light exit portion 3 includes a light-transmitting area, the second through groove is at least partially located in the light exit portion 3, and the second through groove is arranged corresponding to the position of the light exit portion; wherein the light-transmitting area and the second through groove are in a sealed state.

[0045] For the anti-loosening bolt in the present invention, the thread of the shaft 1 can be a standard thread or other types of threads. The assembly of parts is completed by matching the shaft 1 with the threaded hole. The head 2 can include heads of different shapes such as a hexagonal head, a hexagonal head, and a slotted head. The specific shape depends on actual needs. The anti-loosening bolt can be installed and removed through the head 2 by tools. In order to prevent the shaft 1 of the present invention from loosening during use, the present invention also includes a first through groove, a second through groove and a light outlet 3. When installing the bolt, the anti-loosening bolt is installed on the thread groove of the intended part, and the bottom of the thread groove is in a sealed state. Then, a photocuring adhesive is injected into the first through groove, and the photocuring adhesive flows through the first through groove to the outside of the anti-loosening bolt to fill the gap between the light outlet and the bolt. Then, the light outlet is aligned with the intended light source, and the light enters the light outlet through the second through groove, and the light-transmitting area acts on the photocuring adhesive. Under the action of light, the photocuring adhesive cures quickly to complete the installation of the bolt. The light-transmitting area of ​​the light-emitting portion 3 can be made of a transparent material or a light-transmitting material, such as an optical-grade transparent material. The second through groove can be a circular, rectangular or other shaped through groove, and its position and size are determined according to actual needs. A sealing material or structure can be used to seal the light-transmitting area and the second through groove, such as an optical-grade sealant. The anti-loosening bolt in the present invention can be quickly combined with external parts through the photocuring adhesive, and has a good anti-loosening effect. During the installation process, the curing time of the photocuring adhesive can be artificially controlled, and a longer time is available to adjust the tightness of the anti-loosening bolt, which is convenient for construction and installation.

[0046] In one embodiment, the light emitting portion 3 includes a limiting member 31 and a coupling member 32 connected to the shaft portion 1; a limiting region is formed between the limiting member 31 and the shaft portion 1, and the coupling member 32 is located in the limiting region; wherein, on a plane perpendicular to the axis of the shaft portion 1, the periphery of the cross section of the coupling member 32 does not protrude from the periphery of the cross section of the shaft portion 1. The limiting member 31 may be a member of a cylindrical, conical or other shape, and its size and shape are determined according to actual needs; the coupling member 32 may be a member of a cylindrical, conical or other shape, and its size and shape are determined according to actual needs; on a plane perpendicular to the axis of the shaft portion 1, the periphery of the cross section of the coupling member 32 does not protrude from the periphery of the cross section of the shaft portion 1, thereby ensuring that the light emitting portion 3 does not hinder the installation of the shaft portion 1 and can be smoothly inserted into the thread groove.

[0047] In one embodiment, if Figure 4As shown, the combining member 32 includes a main body 321, and a limiting groove 322 is provided on the outer surface of the main body 321. The limiting groove 322 can be a U-shaped, V-shaped or other shaped groove, and its size and shape are determined according to actual needs. Through the limiting groove, when the photocuring glue is injected, the photocuring glue fills the limiting groove 322, and the photocuring glue also adheres to the inner wall of the thread groove, thereby further preventing the shaft 1 from loosening. Specifically, the limiting groove 322 is arranged in plurality and is spaced circumferentially along the main body 321.

[0048] In one embodiment, a reflective layer is arranged on the surface of the body 321. The reflective layer can be made of an optical grade reflective material, such as a metal material plated with a reflective coating or a reflective film. The reflective layer can cover all or part of the surface of the body 321. The light emitted by the light emitting portion 3 can be reflected to the thread groove through the reflective layer. The thread groove then reflects part of the light to the body 321. By utilizing the light, the time of light curing can be reduced.

[0049] In one embodiment, if Figure 5 As shown, the limiting member 31 includes a rod 312, the second through groove 312 is partially arranged on the rod 312, a plurality of first lenses 311 are arranged circumferentially on the outer surface of the rod 312, and the second through groove 312 and the first lens 311 are provided with light outlets corresponding to each other; a plurality of second lenses 323 are arranged circumferentially on the outer surface of the body 321, the first lens 311 is aligned with the second lens 323, and the refractive index of the medium of the second lens 323 is greater than the refractive index of the medium of the first lens 311; wherein, The light outlet, the first lens 311 and the second lens 323 constitute a light-transmitting area to form a light channel. The size of the first lens 311 is smaller than that of the second lens 323. Through the above-mentioned embodiment, when the light passes through the first lens 311, the first refraction occurs, which expands the light output range, and then the second refraction is performed by the second lens 323, thereby greatly increasing the light output range of the light output portion 3, and a larger range of light-curing adhesive can be acted on. The limiting groove 322 is provided with a notch on the side surface away from the shaft portion 1 to facilitate the filling of the light-curing adhesive.

[0050] In one embodiment, the steps of installing the anti-loosening bolts include:

[0051] Install the anti-loosening bolt in the thread groove on the intended component, and the bottom of the thread groove is in a sealed state;

[0052] Injecting light-curing adhesive into the first through groove, the light-curing adhesive flows through the first through groove to the outside of the anti-loosening bolt, and fills the gap between the light-emitting portion 3 and the anti-loosening bolt;

[0053] Re-confirm and adjust the tightness of the anti-loosening bolts. Compared with traditional curing glue, sufficient time is reserved for bolt position adjustment;

[0054] Insert the light guide into the second through slot, provide the light guide with a light source, and the light emitting portion 3 emits light through the light-transmitting area to act on the light-curing adhesive. When the light-curing adhesive is completely cured, the installation of the anti-loosening bolt is completed. Figure 6 shown.

[0055] In one embodiment, the step of removing the anti-loosening bolt includes:

[0056] Inserting a heating rod into the first through groove, the heating rod contacts the inner wall of the first through groove until it touches the light-curing adhesive;

[0057] The temperature of at least the end of the heating rod is increased, and the heating rod and the light emitting portion 3 are heat-transferred to increase the temperature of the light emitting portion 3;

[0058] The light-curing adhesive melts due to the heat. At this time, the anti-loosening bolt is rotated until the anti-loosening bolt is completely out of contact with the thread groove, and the anti-loosening bolt is removed.

[0059] In summary, this patent proposes an aviation anti-loosening bolt with a light-emitting portion and a limiting portion, which realizes the functions of quick installation and preventing loosening by the light emitted by the light-emitting portion acting on the light-curing adhesive. At the same time, the design of the combined component and the limiting groove can increase the stability and fixity of the light-emitting portion and improve the quality and effect of the light output. The method of using a heating rod to heat the light-curing adhesive can realize the removal of the anti-loosening bolt, which is convenient and quick. The anti-loosening bolt can meet the use requirements of aerospace equipment in some special environments and improve the stability and safety of structural connections.

[0060] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. An aviation anti-loosening bolt, characterized in that: It comprises a shaft portion with a thread on the outer surface, a head portion arranged at one end of the shaft portion, and a light emitting portion arranged at an end of the shaft portion different from the head portion; A first member is arranged on a cross section of the head perpendicular to the axis of the shaft portion, and the first member is used to connect a tool for installing and / or removing the bolt; The shaft portion is provided with a first through slot and a second through slot along the axial direction, the first through slot passes through the shaft portion, and at least one end of the second through slot close to the head portion is in communication with the external environment; The light exit portion includes a light-transmitting area, the second through groove is at least partially located in the light exit portion, and the second through groove is arranged corresponding to the position of the light exit portion; Wherein, the light-transmitting area and the second through groove are in a sealed state.

2. An aviation anti-loosening bolt as claimed in claim 1, characterized in that: The light emitting portion includes a limiting member and a combining member connected to the shaft portion; A limiting area is formed between the limiting member and the shaft portion, and the combining member is located in the limiting area; Wherein, on a plane along a perpendicular axis of the shaft portion, the periphery of the cross section of the coupling member does not protrude beyond the periphery of the cross section of the shaft portion.

3. An aviation anti-loosening bolt as claimed in claim 2, characterized in that: The combining component comprises a body, and a limiting groove is provided on the outer surface of the body.

4. An aviation anti-loosening bolt as claimed in claim 3, characterized in that: A plurality of the limiting grooves are arranged and spaced apart along the circumference of the body.

5. The anti-loosening bolt for aviation according to claim 1, characterized in that: A reflective layer is arranged on the surface of the body.

6. The anti-loosening bolt for aviation according to claim 2, characterized in that: The limiting member comprises a rod, the second through-slot is partially arranged on the rod, a plurality of first lenses are arranged at intervals in the circumferential direction on the outer surface of the rod, and the second through-slot is provided with light outlets corresponding to the first lenses; A plurality of second lenses are arranged at intervals in the circumferential direction on the outer surface of the body, the first lens is aligned with the second lens, and the refractive index of the second lens medium is greater than the refractive index of the first lens medium; The light outlet, the first lens and the second lens constitute a light-transmitting area, forming a light channel.

7. An aviation anti-loosening bolt as claimed in claim 6, characterized in that: The size of the first lens is smaller than the size of the second lens.

8. The anti-loosening bolt for aviation according to claim 3, characterized in that: A notch is formed on a surface of the limiting groove on one side away from the shaft portion.

9. An aviation anti-loosening bolt according to any one of claims 1 to 8, characterized in that: The steps of installing the anti-loosening bolts include: Install the anti-loosening bolt in the thread groove on the intended component, and the bottom of the thread groove is in a sealed state; Injecting light-curing adhesive into the first through groove, the light-curing adhesive flows through the first through groove to the outside of the anti-loosening bolt, and fills the gap between the light-emitting portion and the anti-loosening bolt; Confirm and adjust the tightness of the anti-loosening bolt again; Insert the light guide into the second through groove, provide the light guide with a light source, and the light emitting part emits light through the light-transmitting area to act on the light-curing adhesive. When the light-curing adhesive is completely cured, the installation of the anti-loosening bolt is completed.

10. An aviation anti-loosening bolt according to any one of claims 1 to 8, characterized in that: The steps of removing the anti-loosening bolts include: Inserting a heating rod into the first through groove, the heating rod contacts the inner wall of the first through groove until it touches the light-curing adhesive; The temperature of at least the end of the heating rod is increased, and the heating rod and the light emitting portion are heat-transferred to increase the temperature of the light emitting portion; The light-curing adhesive melts due to the heat. At this time, the anti-loosening bolt is rotated until the anti-loosening bolt is completely out of contact with the thread groove, and the anti-loosening bolt is removed.

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