Anti-loose bolt for aircraft

Abstract

The application discloses an anti-loosening bolt for aviation, which comprises a shaft part with a threaded outer surface and a head part arranged at one end of the shaft part; the head part comprises a body member, a connecting member arranged on a side surface of the body member close to the shaft part, and a limiting rod connected to one end of the connecting member; the limiting rod is fixed relative to the position of the aviation part; a first track is formed on the side surface of the body member close to the shaft part; the connecting member comprises a bolt assembly and a sliding block; the bolt assembly is installed at one end of the sliding block, so that the sliding block can move along the first track; the other end of the sliding block is fixedly connected with the limiting rod; and the length of the limiting rod is adjustable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fasteners, in particular to an aviation anti-loose bolt. BACKGROUND

[0002] In the field of aviation, the application of bolts is widely used in the connection of various parts. However, due to the harshness of the aviation environment, the traditional bolt connection method may loosen after a long time of use due to vibration, thereby causing a decrease in mechanical performance and an increase in safety hazards. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art and provide an aviation anti-loose bolt. Compared with the prior art, the disclosed scheme in the present application has better anti-loose characteristics and can prevent the loosening of the bolt.

[0004] The present application is achieved by the following technical scheme: the present application discloses an aviation anti-loose bolt, comprising a shaft part with threads on the outer surface and a head part arranged at one end of the shaft part; the head part comprises a body member, a connecting member arranged on the surface of the body member close to the shaft part, and a limiting rod connected to one end of the connecting member;

[0005] The limiting rod is relatively fixed in position with the aviation part, the surface of the body member close to the shaft part is provided with a first track, the connecting member comprises a bolt assembly and a sliding block, the bolt assembly is installed at one end of the sliding block, so that the sliding block can move along the first track, the other end of the sliding block is fixedly connected with the limiting rod, and the length of the limiting rod is adjustable.

[0006] Preferably, the present application further comprises a light emitting part arranged at the end of the shaft part different from the head part;

[0007] The head part is arranged with a first member on the cross section perpendicular to the axis of the shaft part, and the first member is used for connecting the tool for installing and / or dismounting the bolt;

[0008] The shaft part is provided with a first through groove and a second through groove in the direction of the axis, the first through groove penetrates the shaft part, and the second through groove is at least close to one end of the head part and in communication with the external environment;

[0009] The light emitting part comprises a light transmission area, the second through groove is at least partially located in the light emitting part, and the second through groove is arranged corresponding to the position of the light emitting part;

[0010] The light transmission area and the second through groove are in a sealed state.

[0011] For the anti-loosening bolt in this invention, the thread on the shaft can be a standard thread or other types of threads. Assembly of components is completed through the mating of the shaft and the threaded hole. The head can include different shapes such as hexagonal head, internal hexagonal head, and slotted head, the specific shape depending on actual needs. The anti-loosening bolt can be installed and removed using tools through the head. To prevent loosening of the shaft during use, this invention also includes a first through groove, a second through groove, and a polished part. When installing the bolt, the anti-loosening bolt is installed in the threaded groove on the intended component, with the bottom of the threaded groove sealed. Then, UV-cured adhesive is injected into the first through groove, flowing through the first through groove to the outside of the anti-loosening bolt, affecting the polished part and the threaded part.

[0012] The gaps between the bolts are filled. Next, the light-emitting part is aligned with the intended light source, and light enters the light-emitting part through the second through-slot. The light-transmitting area acts on the UV-curable adhesive. Under the influence of light, the UV-curable adhesive cures rapidly, completing the bolt installation. The light-transmitting area of ​​the light-emitting part can be made of transparent or light-transmitting materials, such as optically grade transparent materials. The second through-slot can be circular, rectangular, or other shaped, and its position and size are determined according to actual needs. The light-transmitting area and the second through-slot can be sealed using sealing materials or structures, such as optically grade sealant. The anti-loosening bolt of this invention can quickly bond with external parts through the UV-curable adhesive, providing excellent anti-loosening effect. Furthermore, during installation, the curing time of the UV-curable adhesive can be manually controlled, allowing for a longer adjustment period to the tightness of the anti-loosening bolt, facilitating construction and installation.

[0013] Preferably, the light-emitting part includes a limiting member and a connecting member connected to the shaft;

[0014] A limiting region is formed between the limiting member and the shaft portion, and the connecting member is located in the limiting region;

[0015] Wherein, on the plane along the vertical axis, the periphery of the cross section of the connecting member does not protrude beyond the periphery of the cross section of the shaft.

[0016] Preferably, the connecting member includes a body, and a limiting groove is formed on the outer surface of the body.

[0017] Preferably, multiple limiting grooves are arranged and spaced apart circumferentially along the body.

[0018] Preferably, a reflective layer is disposed on the surface of the body.

[0019] Preferably, the limiting member includes a rod, the second through groove is arranged on the rod, and a plurality of first lenses are arranged circumferentially on the outer surface of the rod. The second through groove and the first lenses are respectively provided with light outlets.

[0020] The plurality of second lenses are arranged on the outer surface of the body in a circumferential direction, the first lenses and the second lenses are arranged in alignment, and the refractive index of the second lens medium is greater than the refractive index of the first lens medium.

[0021] The light outlet, the first lens and the second lens constitute a light transmission region and form a light channel.

[0022] Preferably, the size of the first lens is smaller than the size of the second lens.

[0023] Preferably, an opening is formed in the side surface of the limiting groove away from the shaft portion.

[0024] Preferably, the step of installing the anti-loosening bolt comprises:

[0025] The anti-loosening bolt is installed in a threaded groove of a desired component, and the bottom of the threaded groove is in a sealed state.

[0026] Light-curing glue is injected into the first through groove, the light-curing glue flows to the outside of the anti-loosening bolt through the first through groove, and the gap between the light outlet and the anti-loosening bolt is filled.

[0027] The tightness of the anti-loosening bolt is checked again.

[0028] The light guide member is inserted into the second through groove, a light guide member light source is provided, the light outlet acts on the light-curing glue through the light transmission region, and after the light-curing glue is completely cured, the installation of the anti-loosening bolt is completed.

[0029] Preferably, the step of disassembling the anti-loosening bolt comprises:

[0030] The heating rod is inserted into the first through groove, and the heating rod contacts the inner wall of the first through groove until the light-curing glue is touched.

[0031] The heating rod is heated at least at the end, and the heating rod is in thermal conduction with the light outlet, so that the light outlet is heated.

[0032] The light-curing glue is melted by heat, and at this time, the anti-loosening bolt is rotated until the anti-loosening bolt is completely not in contact with the threaded groove, and the disassembly of the anti-loosening bolt is completed.

[0033] The application discloses an anti-loosening bolt for aviation, compared with the prior art:

[0034] The patent provides an aviation anti-loose bolt with a light-emitting part and a limiting part. The position of the head part is fixed to achieve the anti-loose effect. Specifically, the anti-loose bolt is installed first, and the shaft part thread is aligned with the threaded hole on the aviation part. The limiting rod is fixed to the aviation part at one end, which can be fixed by welding. The other end of the limiting rod is connected to the connecting member, which is movably connected to the body member. The shaft part is rotated until the anti-loose bolt is completely tightened. At this time, the bolt assembly is tightened by a tool, and the position between the slider and the body member is completely fixed, and the position of the shaft part is tightened. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a schematic diagram of the installation of the anti-loose bolt in the present application;

[0036] Figure 2 is a top view of the head part of the anti-loose bolt in the present application;

[0037] Figure 3 is a structural schematic diagram of the anti-loose bolt in the present application;

[0038] Figure 4 is a sectional view of the anti-loose bolt in Figure 3 along the A-A direction;

[0039] Figure 5 is a partial schematic diagram of Figure 4

[0040] Figure 6 is a structural schematic diagram of the connecting member in an embodiment;

[0041] Figure 7 is a light path schematic diagram of the light-emitting area. DETAILED DESCRIPTION

[0042] 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 specific details to assist in understanding but these details will be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications can 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 can be omitted for clarity and conciseness.

[0043] Hereinafter, exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0044] ​It will be understood that when an element or layer is referred to as being "on" or "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or intervening elements or layers can also be present. In contrast, when an element is referred to as being "directly on," or "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. By way of example, when a first element is described as being coupled to or connected to a second element, it can be directly coupled to or connected to the second element, or intervening elements can be present. Like reference numerals refer to like elements throughout. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] In addition, the use of "may" when describing embodiments of the present application relates to "one or more embodiments of the present application." When expressions such as "at least one of' are used, they are meant to infuse the entire list with life, and not a single one of the list. Furthermore, the word "exemplary" is intended to mean an example or an illustration. As used herein, the words "use," "using," and "used" can be considered synonymous with the word "utilize" and its variants.

[0046] It will be understood that, although the terms first, second, third, etc. can be used herein 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 only to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments. In the drawings, the size of various elements, layers, etc. can be exaggerated for clarity.

[0047] For the purposes of this description, spatially relative terms such as "beneath", "below", "lower", "above", "upper" and the like can be used to describe one element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0048] The terminology used herein is for the purpose of describing particular example embodiments of the application only and is not intended to be limiting of the example embodiments of the application being described. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", when used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0049] The application is implemented by the following technical scheme: the application discloses an aviation anti-loose bolt, as shown in FIG. 1 to FIG. 3, the structure comprises a shaft part 1 with threads on the outer surface and a head part 2 arranged at one end of the shaft part; the head part 2 comprises a body member 21, a connecting member 22 arranged on the surface of the body member 21 close to the shaft part 1, and a limiting rod 23 connected to one end of the connecting member 22.

[0050] The limiting rod 23 is fixed relative to the position of the aviation component, the surface of the body member 21 close to the shaft part 1 is provided with a first track 24, the connecting member 22 comprises a bolt assembly and a sliding block, the bolt assembly is installed on

[0051] The sliding block can move along the first track 24, the other end of the sliding block is fixedly connected with the limiting rod 23, and the length of the limiting rod 23 is adjustable.

[0052] For the above scheme, by fixing the position of the head 2, and then complete the effect of anti-loose, specifically, first to anti-loose bolt installation, make the shaft 1 thread alignment on the aeronautical components on the threaded hole, while the limit rod 23 one end fixed to the aeronautical components, can adopt the way of welding fixed, limit rod 23 the other end connecting connecting member 22, connecting member movable connecting body member 21, rotating shaft 1, until the anti-loose bolt is completely fastened, at this time, through the tool to tighten the bolt assembly, make the slider and the body member 21 between the position is completely fixed, complete the position of the shaft 1 fastening.

[0053] As shown in FIG. 3 to FIG. 5, the application also includes the light emitting part 3 arranged at the end of the shaft part 1 distinguished from the head 2; the head 2 is arranged with a first member on the cross section perpendicular to the axis of the shaft part 1, which is used to connect the tool for installing and / or dismounting the bolt; the shaft part 1 is provided with a first through slot and a second through slot along the axis direction, the second through slot is at position A in FIG. 3 and the first through slot is at position B, the first through slot penetrates the shaft part 1, and the second through slot is at least close to one end of the head 2 and in communication with the external environment; the light emitting part 3 includes a light transmission area, the second through slot is at least partially located in the light emitting part 3, and the second through slot is arranged corresponding to the position of the light emitting part; wherein the light transmission area and the second through slot are in a sealed state.

[0054] For the anti-loose bolt in the application, the thread of the shaft part 1 can be a standard thread or other types of threads, and the assembly of parts is completed by the cooperation of the shaft part 1 and the threaded hole. The head part 2 can include a hexagonal head, an internal hexagonal head, a slot, and other different shaped head parts, and the specific shape is determined according to actual needs. The installation and disassembly of the anti-loose bolt can be completed through the head part 2 by using a tool. In order to prevent the shaft part 1 from loosening during use, the application also includes a first through groove, a second through groove, and a light emitting part 3. When installing the bolt, the anti-loose bolt is installed in the threaded groove of the expected part, and the bottom of the threaded groove is in a sealed state. Then, the light curing adhesive is injected into the first through groove, and the light curing adhesive flows to the outside of the anti-loose bolt through the first through groove, and fills the gap between the light emitting part and the bolt. Then, the light emitting part is aligned with the expected light source, the light enters the light emitting part through the second through groove, and the light transmission area acts on the light curing adhesive. Under the action of the light, the light curing adhesive quickly solidifies, and the installation of the bolt is completed. The light transmission area of the light emitting part 3 can be made of transparent material or material with light transmission property, for example, made of optical grade transparent material. The second through groove can be a circular, rectangular, or other shaped through groove, and the position and size are determined according to actual needs. The light transmission area and the second through groove can be sealed by using a sealing material or structure, for example, sealed by using optical grade sealing glue. The anti-loose bolt in the application can be quickly combined with the external part by using the light curing adhesive, has good anti-loose effect, and in the installation process, the curing time of the light curing adhesive can be artificially controlled, the fastening degree of the anti-loose bolt can be adjusted for a long time, and the construction and installation are facilitated.

[0055] In an embodiment, the light emitting part 3 includes a limiting member 31 connected to the shaft part 1 and a combination member 32. The limiting member 31 and the shaft part 1 form a limiting area therebetween, and the combination member 32 is located in the limiting area. In a plane perpendicular to the axis of the shaft part 1, the outer periphery of the cross section of the combination member 32 does not protrude from the outer periphery of the cross section of the shaft part 1.

[0056] The limiting member 31 can be a cylindrical, conical, or other shaped member, and the size and shape are determined according to actual needs. The combination member 32 can be a cylindrical, conical, or other shaped member, and the size and shape are determined according to actual needs. In a plane perpendicular to the axis of the shaft part 1, the outer periphery of the cross section of the combination member 32 does not protrude from the outer periphery of the cross section of the shaft part 1, which can ensure that the light emitting part 3 does not hinder the installation of the shaft part 1 and can be smoothly inserted into the threaded groove.

[0057] In an embodiment, as Figure 6As shown, the combination member 32 includes a body 321, the outer surface of the body 321 is provided with a limiting groove 322, which can be a U-shaped, V-shaped or other shaped groove, the size and shape of which are determined according to actual needs. In the case of injecting light-curing glue, the light-curing glue fills the limiting groove 322, and the light-curing glue also adheres to the inner wall of the threaded groove, thereby further preventing the loosening of the shaft part 1. Specifically, the limiting groove 322 is arranged in multiple and is spaced along the circumference of the body 321.

[0058] In an embodiment, the surface of the body 321 is provided with a reflective layer, which can be made of optical-grade reflective materials such as metal materials coated with reflective coatings or reflective films, etc. The reflective layer can cover all or part of the surface of the body 321. Through the reflective layer, the light emitted by the light-emitting part 3 can be reflected to the threaded groove, and part of the light can be reflected to the body 321, thereby reducing the light-curing time through the utilization rate of light.

[0059] In an embodiment, as shown in FIG. 7, the limiting member 31 includes a rod 312, the second through groove 312 is arranged on the rod 312, the outer surface of the rod 312 is circumferentially spaced apart from a plurality of first lenses 311, and the second through groove 312 is provided with a light outlet corresponding to the first lens 311; the outer surface of the body 321 is circumferentially spaced apart from a plurality of second lenses 323, the first lens 311 and the second lens 323 are arranged in alignment, and the refractive index of the medium of the second lens 323 is greater than that of the first lens 311; wherein the light outlet, the first lens 311 and the second lens 323 constitute a light transmission region to form a light channel, and the size of the first lens 311 is smaller than that of the second lens 323. Through the above embodiment, when the light passes through the first lens 311, it is refracted for the first time, which expands the range of light emission. Then, the light is refracted for the second time through the second lens 323, thereby greatly increasing the light emission range of the light-emitting part 3, and a larger range of light-curing glue can be affected. The limiting groove 322 is provided with an opening away from the surface of the side of the shaft part 1, which facilitates the filling of the light-curing glue. As shown in FIG. 7, the light path at position a is the light path after being processed by the light transmission region, and the light path at position b is the light path without being processed by the light transmission region.

[0060] In an embodiment, the step of installing the anti-loosening bolt includes:

[0061] The anti-loosening bolt is installed in the threaded groove of the intended component, and the bottom of the threaded groove is in a sealed state.

[0062] Injecting light-curing glue into the first through groove, the light-curing glue flows through the first through groove to the outside of the locking bolt, filling the gap between the light-emitting part 3 and the locking bolt;

[0063] Again, confirm the adjustment of the locking bolt, compared with the traditional curing glue, there is enough time for the bolt position adjustment;

[0064] Insert the light guide into the second through groove, provide light guide light source, light-emitting part 3 through the light-transmitting area light-emitting effect on the light-curing

[0065] Glue, after the light-curing glue is completely cured, the installation of the locking bolt is completed.

[0066] In an embodiment, the step of disassembling the locking bolt comprises:

[0067] Insert the 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 glue;

[0068] The heating rod is heated at least at the end, the heating rod and the light-emitting part 3 are in thermal contact, and the light-emitting part 3 is heated;

[0069] The light-curing glue is heated and melted, at this time, the locking bolt is rotated until the locking bolt is completely not in contact with the threaded groove, and the disassembly of the locking bolt is completed.

[0070] In summary, the patent proposes an aviation locking bolt with light-emitting part and limiting part, the light emitted by the light-emitting part acts on the light-curing glue, realizing the functions of rapid installation and anti-loosening. At the same time, the design of the component and the limiting groove can increase the stability and fixity of the light-emitting part, improve the quality and effect of light output. The method of using a heating rod to heat the light-curing glue can realize the disassembly of the locking bolt, which is convenient and fast. The locking bolt can meet the use requirements of aerospace equipment in some special environments, improve the stability and safety of the structure connection.

[0071] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0072] It is to be understood that the phrases such as "first" and "second", and the like, used herein are used only to distinguish one from another entity or action, and do not require or imply these entities or actions to be in any particular sequence or order. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. An aviation anti-loosening bolt installed in an aviation member, characterized by, The anti-loosening bolt comprises an outer surface with a threaded shaft portion and a head portion arranged at one end of the shaft portion; the head portion comprises a body member, a connecting member arranged on the surface of the body member close to the shaft portion, and a limiting rod connected to one end of the connecting member; the anti-loosening bolt is installed in a threaded groove on a desired component, and the bottom of the threaded groove is in a sealed state. The limiting rod is fixed relative to the position of the aviation component, the surface of the body member close to the shaft portion is provided with a first track, the connecting member comprises a bolt assembly and a sliding block, the bolt assembly is installed at one end of the sliding block so that the sliding block can move along the first track, and the other end of the sliding block is fixedly connected to the limiting rod, and the length of the limiting rod is adjustable. The shaft portion is provided with a first through groove and a second through groove in the axial direction, the first through groove penetrates through the shaft portion and is used for injecting light-curing glue, and the second through groove is at least close to one end of the head portion and is in communication with the external environment. The anti-loosening bolt further comprises a light-emitting portion arranged at an end of the shaft portion different from the head portion. The light-emitting portion comprises a light-transmitting area, the second through groove is at least partially located in the light-emitting portion, and the second through groove is arranged in correspondence with the position of the light-emitting portion. The light-transmitting area and the second through groove are in a sealed state. The light-emitting portion comprises a limiting member connected to the shaft portion and a combination member. The limiting member and the shaft portion form a limiting area, and the combination member is located in the limiting area. In a plane perpendicular to the axis of the shaft portion, the outer periphery of the cross section of the combination member does not protrude from the outer periphery of the cross section of the shaft portion; the limiting member comprises a rod, the second through groove is partially arranged in the rod, and the outer surface of the rod is circumferentially spaced apart from a plurality of first lenses; the second through groove is provided with a light-emitting port corresponding to the first lens. The combination member comprises a body, and the outer surface of the body is provided with a limiting groove filled with light-curing glue. The outer surface of the body is circumferentially spaced apart from a plurality of second lenses, the first lenses and the second lenses are arranged in alignment, and the refractive index of the medium of the second lenses is greater than the refractive index of the medium of the first lenses. The light-emitting port, the first lens and the second lens constitute a light-transmitting area to form a light channel.

2. An anti-loosening bolt for aircraft as set forth in claim 1, characterized in that, The head portion is provided with a first member in a cross section perpendicular to the axis of the shaft portion, and the first member is used for connecting a tool for installing and / or dismounting the bolt.

3. An anti-loosening bolt for aircraft as set forth in claim 2, characterized in that, The limiting groove is arranged in plurality and is spaced apart along the circumference of the body, and the surface of the limiting groove away from the shaft portion is provided with an opening.

4. The anti-loosening bolt for aircraft as set forth in claim 1, characterized by The surface of the body is provided with a reflective layer.

5. An anti-loosening bolt for aircraft as set forth in claim 4, characterized in that, The size of the first lens is smaller than the size of the second lens.

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