Nut installation device applicable to installing a nut onto a bolt

Abstract

The present disclosure provides a nut installation device suitable for installing a nut onto a bolt. The nut installation device includes: a housing, at least one of two opposite sides of the housing is provided with a strip-shaped opening penetrating the housing in the height direction, and four strip-shaped protrusions that are symmetrically arranged in pairs and extend in the height direction are formed in the inner cavity of the housing. The strip-shaped opening and the strip-shaped protrusions constitute a nut bin suitable for storing nuts; a telescopic mechanism, installed inside the housing, and the telescopic mechanism is configured to push the nuts in the nut bin towards the top of the housing; and a limiting mechanism, installed on one side inside the housing, and the limiting mechanism is configured to control the telescopic length of the telescopic mechanism to control the nuts in the nut bin to move orderly towards the top direction.

Description

Technical Field

[0001] The present disclosure relates to the technical field of aircraft assembly, and more particularly, to a nut installation device suitable for installing a nut onto a bolt. Background Art

[0002] During the production and assembly process of an aircraft wing, many components need to be connected using fasteners (bolts). However, due to the particularity of the aircraft wing, the installation position of the parts may be in a narrow space within the wing. For example, the length of the access panel of a certain type of aircraft wing from the leading edge of the aircraft is 1.1 meters. During the installation process of the fastener (bolt), it is impossible to assemble it by hand (or general tools), and the nut needs to be fixed on a specific tool to align with the bolt for installation. There is a risk of the nut falling during the installation process. The fallen nut will form foreign objects in the internal fuel tank of the wing, which will waste time during the search process, thereby reducing production efficiency, and will pose a great potential safety hazard to the flight of the aircraft. Summary of the Invention

[0003] In view of this, an embodiment of the present disclosure provides a nut installation device suitable for installing a nut onto a bolt.

[0004] According to an embodiment of the present disclosure, there is provided a nut installation device suitable for installing a nut onto a bolt, and the nut installation device includes:

[0005] A housing, at least one of two opposite sides of the housing is provided with a strip-shaped opening penetrating the housing in the height direction, and four strip-shaped protrusions that are symmetrically arranged in pairs and extend in the height direction are formed in the inner cavity of the housing. The strip-shaped opening and the strip-shaped protrusions form a nut bin suitable for storing nuts;

[0006] A telescopic mechanism, installed inside the housing, and the telescopic mechanism is configured to push the nut in the nut bin towards the top of the housing; and

[0007] A limiting mechanism, installed on one side inside the housing, and the limiting mechanism is configured to control the telescopic length of the telescopic mechanism to control the nuts in the nut bin to move orderly towards the top direction.

[0008] According to an embodiment of the present disclosure, the limiting mechanism includes:

[0009] A limiting rod, installed inside the housing, and a joint formed by the limiting rod and the telescopic mechanism on a side close to the telescopic mechanism is suitable for forming a lever fulcrum;

[0010] A limiting plate is installed at one end of the above-mentioned limiting rod close to the above-mentioned top surface, and a part of the above-mentioned limiting plate is located inside the above-mentioned nut bin. Among them, under the push of the above-mentioned telescopic mechanism, the above-mentioned limiting plate located inside the above-mentioned nut bin is configured to block the nut from detaching from the above-mentioned nut bin;

[0011] An operating rod is connected to the end of the above-mentioned limiting rod far from the above-mentioned top surface and penetrates through the above-mentioned outer shell. The above-mentioned operating rod is suitable for pressing the above-mentioned operating rod so that under the action of the above-mentioned lever fulcrum, the above-mentioned limiting plate detaches from the above-mentioned nut bin, and the above-mentioned telescopic mechanism pushes the nut in the above-mentioned nut bin towards the above-mentioned top direction.

[0012] According to an embodiment of the present disclosure, the side surface of the above-mentioned limiting plate facing the inside of the above-mentioned nut bin is C-shaped. The cavity in the C-shaped side surface is suitable for storing one of the above-mentioned nuts, and the end of the C-shaped side surface far from the above-mentioned top surface is suitable for blocking the next nut from entering the above-mentioned cavity.

[0013] According to an embodiment of the present disclosure, a plurality of limiting protrusions are arranged at intervals on the side of the above-mentioned limiting rod close to the above-mentioned telescopic mechanism, and the above-mentioned limiting protrusions and the above-mentioned telescopic mechanism form the above-mentioned engaging portion.

[0014] According to an embodiment of the present disclosure, the above-mentioned limiting mechanism further includes:

[0015] A return spring is installed on any end of the above-mentioned limiting rod and connected to the above-mentioned outer shell. The above-mentioned return spring is suitable for restoring the above-mentioned limiting plate to its initial position after the force applied to the above-mentioned operating rod disappears.

[0016] According to an embodiment of the present disclosure, the above-mentioned telescopic mechanism includes:

[0017] A thrust plate is installed inside the above-mentioned outer shell;

[0018] At least one thrust spring is installed at the bottom of the above-mentioned outer shell and connected to the side of the above-mentioned thrust plate far from the above-mentioned nut. The above-mentioned thrust spring is configured to push the above-mentioned thrust plate so that the nut on the above-mentioned thrust plate moves towards the above-mentioned top direction.

[0019] According to an embodiment of the present disclosure, a plurality of the above-mentioned thrust springs are installed at intervals on the end face of the above-mentioned thrust plate.

[0020] According to an embodiment of the present disclosure, the above-mentioned thrust plate is provided with symmetrically arranged notches in pairs, and the thrust plate between a plurality of the above-mentioned notches is located between a plurality of the above-mentioned strip-shaped protrusions.

[0021] According to an embodiment of the present disclosure, the above-mentioned outer shell includes:

[0022] A hollow first shell, the end face of the first shell in the height direction is penetrated, and the first shell is suitable for installing the above-mentioned thrust spring;

[0023] A hollow second housing is connected to the end face of the first housing in the height direction by a snap connection. A strip-shaped opening and a strip-shaped protrusion are formed on the second housing.

[0024] According to an embodiment of the present disclosure, when the strip-shaped openings are provided on two opposite side surfaces of the second housing close to the top surface, the second housing includes:

[0025] Two relatively arranged U-shaped mounting housings. The strip-shaped protrusions are provided on the inner walls of the openings of the mounting housings. Among them, the strip-shaped opening between the two mounting housings and the four strip-shaped protrusions form the nut bin, and the thrust plate is inserted into the two mounting housings.

[0026] According to an embodiment of the present disclosure, by providing a telescopic mechanism and a limiting mechanism in the outer housing, and controlling the telescopic length of the telescopic mechanism by controlling the limiting mechanism, the nut in the nut bin is pushed out onto the screw, avoiding the technical problem that in the related art, when using an installation pliers to fix the nut on the screw, the nut falls inside the aircraft wing, thus causing a safety hazard to the flight of the aircraft, improving the aircraft assembly quality and installation efficiency, and indirectly reducing the labor intensity of the staff. Description of the Drawings

[0027] Through the following description of the embodiments of the present disclosure with reference to the drawings, the above and other objects, features and advantages of the present disclosure will become clearer. In the drawings:

[0028] Figure 1 Schematically shows an exploded perspective view of a nut installation device according to an embodiment of the present disclosure;

[0029] Figure 2 Schematically shows a cross-sectional view of a nut installation device according to an embodiment of the present disclosure;

[0030] Figure 3 Schematically shows a perspective view of a nut installation device according to an embodiment of the present disclosure;

[0031] Figure 4 Schematically shows a connection diagram of a limiting mechanism and a thrust plate according to an embodiment of the present disclosure;

[0032] Figure 5 Schematically shows a connection diagram of the outer housing and the limiting mechanism from one angle according to an embodiment of the present disclosure; and

[0033] Figure 6 Schematically shows a connection diagram of the outer housing and the limiting mechanism from another angle according to an embodiment of the present disclosure. Detailed Embodiments

[0034] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the following detailed description, for the sake of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments can also be implemented without these specific details. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present disclosure.

[0035] The terms used herein are merely for describing specific embodiments and are not intended to limit the present disclosure. The terms "including", "comprising", etc. used herein indicate the presence of the described features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0036] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0037] In the case of using expressions such as "at least one of A, B, and C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include, but not be limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.).

[0038] According to an embodiment of the present disclosure, a nut mounting device suitable for mounting a nut onto a bolt is provided. As Figures 1 to 3 shown, the nut mounting device includes a housing 100, a telescopic mechanism 200, and a limiting mechanism 300.

[0039] At least one of two opposite sides of the housing 100 is provided with a strip-shaped opening 101 that penetrates the housing 100 in the height direction. Four strip-shaped protrusions 102 that are symmetrically arranged in pairs and extend in the height direction are formed in the inner cavity of the housing 100. The strip-shaped opening 101 and the strip-shaped protrusions 102 constitute a nut bin 110 suitable for storing nuts.

[0040] The telescopic mechanism 200 is installed inside the housing 100 and is configured to push the nuts in the nut bin 110 towards the top of the housing 100. The limiting mechanism 300 is installed on one side inside the housing 100 and is configured to control the telescopic length of the telescopic mechanism 200 to control the nuts in the nut bin 110 to move orderly towards the top.

[0041] According to the embodiment of the present disclosure, before installing the nuts, first, multiple nuts are sequentially stored in the nut bin 110 through the slide groove formed by the strip opening 101 and the strip protrusion 102, and the nut installation device is inserted into the installation space. After the outermost nut of the nut bin 110 is aligned with the screw in the installation space and a certain engagement is formed between the nut and the screw, the limit between the limiting mechanism 300 and the telescopic mechanism 200 is released, so that the telescopic mechanism 200 moves the nuts in the nut bin 110 toward the top of the housing 100. At this time, the outermost nut is disengaged from the nut bin 110 and is engaged on the screw. In this case, a wrench or other tool can be used to tighten the nut on the screw.

[0042] According to the embodiments of the present disclosure, a telescopic mechanism 200 and a limiting mechanism 300 are provided in the housing 100, and the telescopic length of the telescopic mechanism 200 is controlled by controlling the limiting mechanism 300 to push the nut in the nut bin 110 out onto the screw rod. This avoids the technical problem in the related art that when the nut is fixed on the screw rod using an installation pliers, the nut falls into the inside of the aircraft wing, thereby posing a safety hazard to the flight of the aircraft. This improves the aircraft assembly quality and installation efficiency, and indirectly reduces the labor intensity of the staff.

[0043] According to the embodiments of the present disclosure, Figure 4 As shown, the limiting mechanism 300 includes a limiting rod 310 , a limiting plate 320 and an operating rod 330 .

[0044] The limiting rod 310 is installed in the housing 100 , and a joint portion formed between a side of the limiting rod 310 close to the telescopic mechanism 200 and the telescopic mechanism 200 is suitable for forming a lever fulcrum.

[0045] The limiting plate 320 is installed at one end of the limiting rod 310 close to the top surface and part of the limiting plate 320 is located in the nut bin 110 , wherein, under the push of the telescopic mechanism 200 , the limiting plate 320 located in the nut bin 110 is configured to prevent the nut from escaping from the nut bin 110 .

[0046] The operating rod 330 is connected to the end of the limiting rod 310 away from the top surface and passes through the shell 100. The operating rod 330 is suitable for pressing the operating rod 330 so that under the action of the lever fulcrum, the limiting plate 320 is separated from the nut bin 110, and the telescopic mechanism 200 pushes the nut in the nut bin 110 to move toward the top.

[0047] According to an embodiment of the present disclosure, when loading multiple nuts into the nut bin 110, the operating rod 330 is manually pressed so that the limit rod 310 and the limit plate 320 are separated from the nut bin 110 under the action of the lever fulcrum, thereby sliding multiple nuts into the nut bin 110 in turn for use.

[0048] According to an embodiment of the present disclosure, when the nut installation device is in use, hold the nut installation device and insert it into the installation space of the aircraft wing, and engage the outermost nut on the screw. Manually press the operating lever 330 so that under the action of the lever fulcrum, the limiting plate 320 disengages from the nut bin 110. At this time, the telescopic mechanism 200 pushes a plurality of nuts to slide in the nut bin 110, so that the outermost nut is pushed out of the nut bin 110 and engaged with the screw. At this time, the nut installation device can be removed, and tools such as a wrench can be used to tighten the nut on the screw.

[0049] According to an embodiment of the present disclosure, as Figure 4 shown, the side of the limiting plate 320 facing the inside of the nut bin 110 is C-shaped. The cavity in the C-shaped side is suitable for storing one nut, and the end of the C-shaped side away from the top surface is suitable for blocking the next nut from entering the cavity.

[0050] According to an embodiment of the present disclosure, after each installation of the outermost nut, the second outermost nut is simultaneously pushed out into the cavity of the limiting plate 320 by the telescopic mechanism 200. Thus, during the next nut installation, after engaging the nut in the cavity with the screw, the operating lever 330 can be pressed to fix the nut in the cavity on the screw.

[0051] According to an embodiment of the present disclosure, as Figure 4 shown, a plurality of limiting protrusions 340 are arranged at intervals on the side of the limiting rod 310 close to the telescopic mechanism 200, and the limiting protrusions 340 and the telescopic mechanism 200 form a joint part.

[0052] According to an embodiment of the present disclosure, there is a certain gap between the limiting protrusion 340 and the telescopic mechanism 200. Only after pressing the operating lever 330 and the operating lever 330 moves a preset distance into the housing 100, the limiting protrusion 340 will form a lever fulcrum with the telescopic mechanism 200. In this way, the telescopic mechanism 200 can push the nuts in the nut bin 110 to move in the upward direction when the operating lever 330 is released.

[0053] According to an embodiment of the present disclosure, referring to Figure 1 , Figure 5 and Figure 6 , the limiting mechanism 300 further includes a return spring 350. The return spring 350 is installed on either end of the limiting rod 310 and connected to the housing 100. The return spring 350 is suitable for restoring the limiting plate 320 to its initial position after the force applied to the operating lever 330 disappears.

[0054] According to an embodiment of the present disclosure, in order to enable the limiting plate 320 to quickly return to its initial position to limit the position of the outermost nut, a return spring 350 can be provided on the limiting rod 310. At this time, after the operating rod 330 is released, the return spring 350 can restore the limiting rod 310 to its initial position through its own deformation recovery ability. If the return spring 350 is not installed, the position of the limiting rod 310 can only be slowly restored to its initial position during the process of the telescopic mechanism 200 pushing the nut to move.

[0055] According to an embodiment of the present disclosure, referring to Figures 1 to 3 , the telescopic mechanism 200 includes a thrust plate 210 and at least one thrust spring 220. The thrust plate 210 is installed inside the housing 100; the thrust spring 220 is installed at the bottom of the housing 100 and is connected to the side of the thrust plate 210 away from the nut. The thrust spring 220 is configured to push the thrust plate 210 so that the nut on the thrust plate 210 moves in the upward direction.

[0056] According to an embodiment of the present disclosure, the thrust plate 210 is in direct contact with the innermost nut in the nut bin 110. When the operating rod 330 is pressed, the limiting plate 320 can be disengaged from the nut bin 110 through the lever fulcrum. At this time, under the action of its own deformation, the thrust spring 220 pushes the multiple nuts in the nut bin 110 outward through the innermost nut until the outermost nut is installed on the screw and the operating rod 330 is released. After the limiting plate 320 is inserted into the nut bin 110 to limit the position of the nut, the nuts in the nut bin 110 no longer move.

[0057] According to an embodiment of the present disclosure, a plurality of thrust springs 220 are installed at intervals on the end face of the thrust plate 210.

[0058] According to an embodiment of the present disclosure, the number of the thrust springs 220 can be specifically set according to actual needs. Preferably, an even number of thrust springs 220 are installed, and they are evenly spaced from the side of the thrust plate 210 away from the nut to make the force on the thrust plate 210 uniform. At the same time, when no nut is installed in the nut bin 110, the thrust spring 220 is in a free state or a certain degree of compressed state. After the nut is installed in the nut bin 110, the thrust spring 220 is in a compressed state. At this time, by pressing the operating rod 330, the thrust spring 220 can push the nut in the nut bin 110 to move under its deformation recovery ability.

[0059] According to an embodiment of the present disclosure, as Figure 4 shown, the thrust plate 210 is provided with symmetrically arranged notches 211 in pairs, and the thrust plate 210 between the multiple notches 211 is located between the multiple strip-shaped protrusions 102.

[0060] According to an embodiment of the present disclosure, in order to enable the thrust plate 210 to match the space inside the housing 100 as much as possible, and since a strip-shaped protrusion 102 is formed inside the housing 100, a notch 211 that cooperates with the strip-shaped protrusion 102 can be provided on the thrust plate 210 to increase the contact surface between the thrust plate 210 and the nut, so that the thrust received by the nut in the nut bin 110 can be more uniform.

[0061] According to an embodiment of the present disclosure, the housing 100 includes a hollow first housing 120 and a hollow second housing 130. The end surface of the first housing 120 in the height direction is penetrated, and the first housing 120 is suitable for installing the thrust spring 220; the second housing 130 is connected to the end surface of the first housing 120 in the height direction by a buckle, and a strip-shaped opening 101 and a strip-shaped protrusion 102 are formed on the second housing 130.

[0062] According to an embodiment of the present disclosure, in the nut installation device, the telescopic mechanism 200 and the limiting mechanism 300 can be more conveniently installed in the housing through the separated first housing 120 and second housing 130, and can be replaced in time after the thrust spring 220, the thrust plate 210 or the limiting mechanism 300 is damaged.

[0063] According to an embodiment of the present disclosure, when strip-shaped openings 101 are provided on two opposite side surfaces of the second housing 130 near the top surface, the second housing 130 includes two relatively arranged U-shaped mounting shells 131. Strip-shaped protrusions 102 are provided on the inner walls of the mounting shells 131 at the openings. Among them, the strip-shaped opening 101 between the two mounting shells 131 and the four strip-shaped protrusions 102 form a nut bin 110, and the thrust plate 210 is inserted into the two mounting shells 131.

[0064] According to an embodiment of the present disclosure, the two U-shaped mounting shells 131 are assembled into the second housing 130, which is convenient for preparing the strip-shaped protrusions 102 on the mounting shells 131 during the production of the nut installation device.

[0065] The above describes the embodiments of the present disclosure. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The above definitions of the various elements and methods are not limited to the specific structures, shapes or ways mentioned in the embodiments, and those of ordinary skill in the art can make simple changes or substitutions to them. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should all fall within the scope of the present disclosure.

Claims

1. A nut installation device, applicable to installing a nut onto a bolt, characterized in that, The nut installation device includes: A housing, at least one of two opposite sides of the housing is provided with a strip-shaped opening penetrating the housing in the height direction, and four strip-shaped protrusions that are symmetrically arranged in pairs and extend in the height direction are formed in the inner cavity of the housing. The strip-shaped opening and the strip-shaped protrusions constitute a nut bin suitable for storing nuts; A telescopic mechanism, installed inside the housing, and the telescopic mechanism is configured to push the nuts in the nut bin towards the top of the housing; and A limiting mechanism, installed on one side inside the housing, and the limiting mechanism is configured to control the telescopic length of the telescopic mechanism to control the nuts in the nut bin to move orderly towards the top direction; Wherein, the limiting mechanism includes: A limiting rod, installed inside the housing, and a joint formed by the side of the limiting rod close to the telescopic mechanism and the telescopic mechanism is suitable for forming a lever fulcrum; A limiting plate, installed at one end of the limiting rod close to the top surface of the housing and part of the limiting plate is located inside the nut bin. Wherein, under the push of the telescopic mechanism, the limiting plate located inside the nut bin is configured to block the nuts from leaving the nut bin; An operating rod, connected to the end of the limiting rod far from the top surface of the housing and penetrating the housing, and the operating rod is suitable for pressing the operating rod so that under the action of the lever fulcrum, the limiting plate disengages from the nut bin, and the telescopic mechanism pushes the nuts in the nut bin towards the top direction.

2. The nut mounting device according to claim 1, characterized in that, The side surface of the limiting plate facing the inside of the nut bin is C-shaped, and the cavity in the C-shaped side surface is suitable for storing one nut, and the end of the C-shaped side surface far from the top surface is suitable for blocking the next nut from entering the cavity.

3. The nut mounting device according to claim 1, characterized in that A plurality of limiting protrusions are arranged at intervals on the side of the limiting rod close to the telescopic mechanism, and the limiting protrusions and the telescopic mechanism form the joint.

4. The nut mounting device according to any one of claims 1 to 3, characterized in that, The limiting mechanism further includes: A return spring, installed on any end of the limiting rod and connected to the housing, and the return spring is suitable for restoring the limiting plate to its initial position after the force applied to the operating rod disappears.

5. The nut mounting device according to claim 1, characterized in that, The telescopic mechanism includes: A thrust plate, installed inside the housing; At least one thrust spring, installed at the bottom of the housing and connected to the side of the thrust plate far from the nuts, and the thrust spring is configured to push the thrust plate so that the nuts on the thrust plate move towards the top direction.

6. The nut mounting device according to claim 5, characterized in that, A plurality of the thrust springs are installed at intervals on the end surface of the thrust plate.

7. The nut mounting device according to claim 5, characterized in that The thrust plate is provided with symmetrically arranged notches in pairs, and the thrust plate between the plurality of notches is located between the plurality of strip-shaped protrusions.

8. The nut mounting device according to claim 5, characterized in that, The housing includes: A hollow first housing, the end surface of the first housing in the height direction is penetrated, and the first housing is suitable for installing the thrust spring; A hollow second housing, connected to the end surface of the first housing in the height direction through a buckle, and the strip-shaped opening and the strip-shaped protrusions are formed on the second housing.

9. The nut mounting device according to claim 8, characterized in that, When the strip-shaped openings are provided on both of two opposite sides of the second housing close to the top surface side, the second housing includes: Two relatively arranged U-shaped mounting shells, wherein strip-shaped protrusions are provided on the inner walls of the mounting shells at the openings. Among them, the strip-shaped opening between the two mounting shells and the four strip-shaped protrusions form the nut bin, and the thrust plate is inserted into the two mounting shells.

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