A dismantling device for a high lock nut of the break-neck type

Abstract

This utility model discloses a device for removing broken-necked high-strength nuts. The main body of the device includes a support, a slider, a locking component, and a wrench. The support includes a generally planar platform and a fixing part located on one side of the platform. The distal end of the fixing part forms a first groove opening towards the side of the platform. The slider is configured to be mounted on the platform, and the distal end of the slider forms a second groove corresponding to the first groove. The first groove and the second groove engage to clamp the high-strength nut to be removed. Rotating the locking component with the wrench adjusts the distance between the first groove and the second groove to lock the high-strength nut. Rotating the support with the wrench rotates the locked high-strength nut, thereby removing it. This removal device is compact, requires little operating space, and is easy to operate. It is particularly suitable for removing broken-necked high-strength nuts in the confined space of an aircraft and is applicable to removing different types of high-strength nuts.

Description

Technical Field

[0001] This disclosure pertains to the field of aerospace manufacturing and assembly technology, specifically relating to a device for removing neck-break type high-lock nuts. Background Technology

[0002] During structural modifications and troubleshooting of aircraft, it is often necessary to remove and replace fasteners, including high-strength bolts and nuts. After a broken-necked high-strength nut is installed, only the cylindrical portion remains, with a smooth surface. In the confined space of an aircraft, there are two main existing methods for removing a broken-necked high-strength nut: one method is to use pliers to clamp and unscrew the nut, which is difficult to implement in confined areas and easily restricted by the surrounding structure; the other method is to remove the nut by drilling, which easily generates debris and risks damaging the aircraft structure. Utility Model Content

[0003] The purpose of this invention is to at least partially avoid or solve the above-mentioned technical problems.

[0004] Specifically, this utility model proposes a removal device suitable for neck-break type high-lock nuts, the body of which includes:

[0005] The support includes a generally planar platform and a fixing portion located on one side of the platform and extending distally from the platform. The fixing portion has a first vertical surface extending vertically adjacent to one side of the platform. The distal end of the first vertical surface of the fixing portion forms a first slot opening toward the side where the platform is located, and the fixing portion has an internal threaded hole in the middle.

[0006] The slider is configured to be placed on the platform and has a first vertical surface facing the fixing part and a second vertical surface extending parallel to the first vertical surface. The distal end of the second vertical surface forms a second slot with the same shape as the first slot at a position corresponding to the first slot. The second slot is configured to face and mate with the first slot to clamp the high-lock nut to be disassembled therebetween. The middle of the slider has a through hole with a shape and position corresponding to the internal thread hole of the fixing part.

[0007] A locking member, the locking member comprising a shank with external threads and a head having a first interface; and

[0008] A wrench, the head of which has a protrusion whose shape matches the first interface of the locking member, thereby allowing the wrench head to engage the first interface and thus rotate the locking member.

[0009] Specifically, after the slider is placed on the platform of the support and the locking member passes sequentially through the through hole on the slider and the internal threaded hole on the fixing part, such that the threaded rod of the locking member engages with the internal threaded hole on the fixing part, the protrusion of the wrench engages with the first interface of the head of the locking member, thereby allowing the distance between the first vertical plane and the second vertical plane to be adjusted by rotating the locking member. This adjusts the distance between the first slot and the second slot of the high-lock nut to be removed, so as to lock the high-lock nut between the first slot and the second slot.

[0010] According to one embodiment of the present invention, a second interface is formed at the bottom of the support opposite to the table surface, and the protrusion of the wrench is configured to engage with the second interface, so that by rotating the wrench, the high-lock nut clamped by the support can be rotated to remove the high-lock nut.

[0011] According to one embodiment of the present invention, at least one pin hole is provided around the internal threaded hole of the fixing part, and through holes corresponding to the pin holes on the fixing part are also provided around the through hole of the slider. The body of the dismantling device further includes at least one positioning pin, which is configured to pass through a corresponding through hole and a corresponding pin hole in sequence to guide the movement of the slider relative to the fixing part.

[0012] According to one embodiment of the present invention, the first slot and the second slot have a "V" shaped structure.

[0013] According to one embodiment of the present invention, the surfaces of the first slot and the second slot are formed with a textured structure that can increase the frictional force when in contact with the high-lock nut, which is beneficial to improving the clamping firmness.

[0014] According to one embodiment of the present invention, the slider has a limiting platform formed around the opening on the side of the through hole opposite to the fixing part for limiting the head of the locking member.

[0015] According to one embodiment of the present invention, the slider is located on one side of the limiting platform, and a through groove is formed around the through hole to allow the head of the locking member to be inserted, so as to reduce the space occupied by the dismantling device during operation.

[0016] According to one embodiment of the present invention, the body of the dismantling device further includes a washer, which is configured to be fitted onto the rod portion of the locking member and positioned between the head of the locking member and the limiting platform in the installed state of the dismantling device.

[0017] According to one embodiment of the present invention, the outer walls of both the fixing part and the slider on the far side are designed with chamfered structures to facilitate dismantling operations in confined spaces.

[0018] According to one embodiment of the present invention, the protrusion has a shape selected from any of the following: quadrilateral, pentagon, hexagon, and the first interface and the second interface are configured to have a shape that matches the protrusion.

[0019] The positive effects of this utility model are as follows:

[0020] The device for removing broken neck high-lock nuts provided by this utility model is compact in size, requires little working space, does not produce extra material during removal, is easy to operate, and can reliably and efficiently remove broken neck high-lock nuts. It is especially suitable for removing broken neck high-lock nuts in the confined space of an aircraft, and is also suitable for removing high-lock nuts of different models.

[0021] The aforementioned removal device places a slider on the platform of the support, clamping the high-lock nut to be removed through the first and second slots. The distance between the first and second slots can be adjusted by the locking mechanism to accommodate different types of high-lock nuts. A wrench can be used to rotate both the locking mechanism and the high-lock nut clamped by the support to complete the removal operation, improving the flexibility of the device. A locating pin guides the movement of the slider relative to the fixed part, preventing displacement during movement and ensuring the high-lock nut is securely clamped, thereby improving removal efficiency. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the demolition device according to the present invention;

[0023] Figure 2 An exploded view of the demolition device according to this utility model;

[0024] Figure 3 This is a schematic diagram of the support structure in a preferred embodiment of the dismantling device;

[0025] Figure 4 This is a schematic diagram of the slider in the dismantling device in a preferred embodiment;

[0026] Figure 5 This is a cross-sectional view of the dismantling device after the support, slider, and locking components are assembled in a preferred embodiment.

[0027] Figure 6 For reference regarding the usage state of the dismantling device according to this utility model Figure 1 ;

[0028] Figure 7 For reference regarding the usage state of the dismantling device according to this utility model Figure 2 .

[0029] The reference numerals in the attached figures are explained as follows:

[0030] 100, Support; 110, Fixing part; 120, Platform; 130, First groove; 140, Internal threaded hole; 150, Second interface; 160, Pin hole;

[0031] 200, slider; 210, second slot; 220, through hole; 230, limiting stage; 240, through groove; 250, through hole;

[0032] 300, Locking component; 310, Rod; 320, Head; 330, First interface;

[0033] 400. Wrench; 410. Protrusion;

[0034] 500, Washers;

[0035] 600, positioning pin;

[0036] 710. Texture structure; 720. Bevel structure;

[0037] 800, high-lock nut. Detailed Implementation

[0038] In the following description, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0039] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0040] Throughout this specification, references to "one embodiment" or "some embodiments" indicate that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment. Therefore, the appearance of "in one embodiment" or "in some embodiments" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any way in one or more embodiments.

[0041] Furthermore, the terms "first," "second," etc., used in the specification and claims are used merely for clarity of description to distinguish various objects, and do not limit the size, quantity, or other order of the objects described. Directional terms indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are used solely for the purpose of describing this application, not to indicate or imply that the objects referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application.

[0042] It should be noted that the "far side" described in this utility model refers to the side extending outward in the direction away from the body of the dismantling device, that is, the side of the dismantling device that is close to the high-lock nut to be dismantled; the "near side" refers to the side close to the body of the dismantling device, that is, the side of the dismantling device that is far away from the high-lock nut to be dismantled.

[0043] The neck-break type high-strength locking nut provided in this utility model is a high-strength locking nut that breaks at the neck when a preset torque is reached. After the nut is installed, the neck breaks, leaving only the threaded part, that is, the nut is left with only the cylindrical part, and the surface is smooth.

[0044] The specific embodiments of this utility model will be described in detail below. Figure 1 and 2 As shown, the main body of the device for removing neck-broken high-lock nuts in the preferred embodiment of this utility model includes a support 100, a slider 200, a locking component 300, and a wrench 400. The cooperation of the support 100 and the slider 200 can clamp the high-lock nut 800 to be removed. By rotating the locking component 300 with the wrench 400, the high-lock nut 800 can be locked. By rotating the support 100 with the wrench 400, the locked high-lock nut 800 can be rotated, thereby realizing the removal of the high-lock nut 800.

[0045] like Figure 2 and 3 As shown, the support 100 includes a platform 120 and a fixing part 110. The platform 120 is generally planar and parallel to the proximal end face of the support 100. The fixing part 110 is disposed on one side of the platform 120 and extends distally from the platform 120. The fixing part 110 has a first vertically extending surface on the side adjacent to the platform 120. A first slot 130 is formed at the distal end of the first vertical surface of the fixing part 110, and the opening of the first slot 130 faces the side where the platform 120 is located.

[0046] An internal threaded hole 140 is formed in the middle of the fixing part 110. The internal threaded hole 140 can be designed to penetrate the fixing part 110, or it can be designed to have the opening of the internal threaded hole 140 facing the side where the table surface 120 is located but not penetrating the fixing part 110. Furthermore, a second interface 150 is formed on the near side of the support 100, that is, at the bottom opposite to the table surface 120.

[0047] like Figure 2 and 4 As shown, the slider 200 is placed on the table 120, and a through hole 220 is formed in the middle of the slider 200. The shape and position of the through hole 220 correspond to the internal threaded hole 140 of the fixing part 110.

[0048] The slider 200 has a second vertical surface formed on the side facing the first vertical surface of the fixing part 110, and the second vertical surface is parallel to the first vertical surface. A second slot 210 is formed at the far end of the second vertical surface of the slider 200. The shape of the second slot 210 is the same as that of the first slot 130, and the position of the second slot 210 also corresponds to the position of the first slot 130. The second slot 210 and the first slot 130 can cooperate to clamp the high-lock nut 800 to be removed between them.

[0049] See Figure 2 As shown, the locking member 300 includes a rod portion 310 and a head 320 disposed at one end of the rod portion 310. The rod portion 310 has an external thread that can cooperate with the internal threaded hole 140 of the fixing portion 110. The head 320 has a first interface 330, and the shape of the first interface 330 is the same as the shape of the second interface 150.

[0050] The head of the wrench 400 has a protrusion 410. The shape of the protrusion 410 matches the shape of the first interface 330 on the locking member 300 and the shape of the second interface 150 on the support 100, so that the protrusion 410 of the wrench 400 can engage with the first interface 330 and the second interface 150 respectively.

[0051] When the protrusion 410 of the wrench 400 is engaged with the first interface 330, the locking member 300 can be rotated by rotating the wrench 400 to adjust the distance between the first vertical surface of the fixing part 110 and the second vertical surface of the slider 200, thereby adjusting the distance between the first slot 130 and the second slot 210 of the high-lock nut 800 to be removed, so as to clamp the high-lock nut 800 between the first slot 130 and the second slot 210. It is also applicable to different models of neck-break type high-lock nuts.

[0052] When the protrusion 410 of the wrench 400 is engaged with the second interface 150, the support 100 can be rotated by rotating the wrench 400, thereby causing the high-lock nut 800, which is clamped by the support 100, to rotate, and thus the high-lock nut 800 can be removed.

[0053] Specifically, the slider 200 is first placed on the platform 120 of the support 100, and the rod 310 of the locking member 300 passes through the through hole 220 on the slider 200 and the internal threaded hole 140 on the fixing part 110 in sequence, so that the threaded rod 310 of the locking member 300 engages with the internal threaded hole 140 on the fixing part 110. Then, the protrusion 410 of the wrench 400 engages with the first interface 330 of the head 320 of the locking member 300. By rotating the locking member 300, the distance between the first vertical plane and the second vertical plane is adjusted, thereby adjusting the distance between the first slot 130 and the second slot 210 of the high-lock nut 800 to be removed, so as to clamp the high-lock nut 800 between the first slot 130 and the second slot 210. Then, the protrusion 410 of the wrench 400 is engaged with the second interface 150 of the support 100. By rotating the support 100, the high-lock nut 800, which is locked between the first slot 130 and the second slot 210, is rotated to remove the high-lock nut 800.

[0054] See Figure 3 As shown, the protrusion 410 is designed as a quadrilateral protrusion structure, and the first interface 330 is also designed as a quadrilateral recess structure. The two are joined by inserting the protrusion 410 into the first interface 330. See also... Figure 2 As shown, the second interface 150 is also designed as a quadrilateral recessed structure, and the two are joined by inserting the protrusion 410 into the second interface 150.

[0055] It should be noted that the shape of the protrusion 410 is not limited to a quadrilateral, but can be any other polygon, such as a pentagon or a hexagon. It can be understood that the first interface 330 and the second interface 150 are designed to correspond to the shape of the protrusion 410.

[0056] See Figure 2 As shown, the slider 200 has a limiting platform 230 designed around the opening of the through hole 220 on the side opposite to the fixing part 110. The limiting platform 230 is used to limit the head 320 of the locking member 300.

[0057] The slider 200 is surrounded by a through hole 220 on one side of the limiting platform 230. The through hole 240 allows the head 320 of the locking member 300 to be embedded in it, thereby reducing the space occupied during the dismantling operation.

[0058] In a preferred embodiment, such as Figure 2 and 5As shown, the main body of the dismantling device also includes a washer 500, which is sleeved on the rod 310 of the locking member 300. When installing the dismantling device, the washer 500 is placed between the head 320 of the locking member 300 and the limiting platform 230 of the slider 200 to achieve a buffering effect, reduce component damage, and extend the service life of the dismantling device.

[0059] In a preferred embodiment, the body of the dismantling device further includes at least one positioning pin 600, which is configured to pass sequentially through a corresponding through hole 250 and a corresponding pin hole 160 to guide the movement of the slider 200 relative to the fixing part 110.

[0060] See back Figure 3 As shown, the dismantling device includes four positioning pins 600. The fixing part 110 is provided with four evenly distributed pin holes 160 around the internal threaded hole 140. The slider 200 is also provided with four evenly distributed through holes 250 around the through hole 220. The positions of the four pin holes 160 and the four through holes 250 correspond so that the positioning pin 600 passes through the corresponding through hole 250 and the corresponding pin hole 160 in sequence. One end of the positioning pin 600 is fixed in the pin hole 160 by threaded connection or interference fit to guide the movement of the slider 200 relative to the fixing part 110, avoid the slider 200 from deviating, thereby ensuring that the high-lock nut 800 to be disassembled is clamped and improving the dismantling efficiency.

[0061] It should be noted that the number of the aforementioned positioning pins 600 is not limited to four, but can be any other number. The number of the aforementioned pin holes 160 and through holes 250 is the same as the number of positioning pins 600.

[0062] See back Figure 1 and 4 As shown, both the first slot 130 and the second slot 210 are "V" shaped structures, which clamp the high-lock nut 800 to be disassembled through the two "V" shaped slots.

[0063] Furthermore, both the first slot 130 and the second slot 210 have a textured structure 710 on their surfaces. The textured structure 710 is designed as multiple parallel recessed grooves distributed at equal intervals. Preferably, the recessed grooves are arranged in an inclined direction on the slot surface. When the two slots clamp the high-lock nut 800 to be disassembled, the textured structure 710 can increase the friction at the contact point between the slots and the high-lock nut 800, which helps to improve the clamping firmness.

[0064] It should be noted that the shapes of the first groove 130 and the second groove 210 are not limited to a "V" shape, but can be any other shape. Furthermore, the texture structure 710 is not limited to equally spaced recessed grooves; it can be any other structure as long as it increases friction.

[0065] See back Figure 6 and 2 As shown, the outer walls of both the fixing part 110 and the slider 200 on the far side are designed with chamfered structures 720 to facilitate dismantling operations in confined spaces. The overall outer contour of the support 100 and the slider 200 after assembly is designed with a cylindrical structure to facilitate the compactness of the dismantling device, thus making it suitable for dismantling operations in the confined spaces of an aircraft.

[0066] It should be noted that the overall external contour of the support 100 and the slider 200 after assembly is not limited to a cylindrical structure, but can also be any other shape.

[0067] The following is a detailed description of a method for removing a high-lock nut using a removal device according to a preferred embodiment of the present invention. Specifically, the removal method involves: first, engaging the protrusion 410 of the wrench 400 with the first interface 330 of the locking member 300; rotating the locking member 300 to create a gap between the first slot 130 and the second slot 210; placing the high-lock nut 800 to be removed between the first slot 130 and the second slot 210; then, rotating the locking member 300 in the opposite direction using the wrench 400, causing the slider 200 to move closer to the fixing part 110 along the positioning pin 600; gradually clamping the high-lock nut 800 to be removed with the first slot 130 and the second slot 210 until the high-lock nut 800 is no longer loose. Figure 7 As shown. Then, engage the protrusion 410 of the wrench 400 with the second interface 150 of the support 100, rotate the support 100 to rotate the locked high-lock nut 800, thereby removing the high-lock nut 800, as shown. ​ As shown.

[0068] The device for removing broken neck high-lock nuts provided by this utility model is compact in size, requires little working space, does not produce extra material during removal, is easy to operate, and can reliably and efficiently remove broken neck high-lock nuts. It is especially suitable for removing broken neck high-lock nuts in the confined space of an aircraft, and is also suitable for removing high-lock nuts of different models.

[0069] The aforementioned removal device places the slider 200 on the platform 120 of the support 100, clamping the high-lock nut 800 to be removed through the first slot 130 and the second slot 210. The locking member 300 allows adjustment of the distance between the first slot 130 and the second slot 210 to accommodate different types of high-lock nuts. The wrench 400 can be used to rotate both the locking member 300 and the high-lock nut 800 clamped by the support 100 to complete the removal operation, improving the flexibility of the device. The positioning pin 600 guides the movement of the slider 200 relative to the fixed part 110, preventing the slider 200 from shifting during movement, thereby ensuring that the high-lock nut 800 to be removed is firmly clamped, improving removal efficiency.

[0070] It should be noted that the features or combinations of features described above according to the present utility model, as well as the features and combinations of features mentioned and / or shown only in the accompanying drawings, can be used not only in the given combinations, but also in other combinations or individually, without departing from the scope of the present utility model.

[0071] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the scope of the described embodiments. Those skilled in the art should understand that many more changes and modifications can be made based on the teachings of this utility model, and all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A device for removing neck-break type high-lock nuts, characterized in that, The body of the dismantling device includes: A support (100) includes a generally planar platform (120) and a fixing part (110) located on one side of the platform (120) and extending distally from the platform (120). The fixing part (110) has a first vertical surface that extends vertically adjacent to one side of the platform (120). The distal end of the first vertical surface of the fixing part (110) forms a first slot (130) that opens toward the side where the platform (120) is located. An internal threaded hole (140) is formed in the middle of the fixing part (110). A slider (200) is configured to be placed on the platform (120) and has a first vertical surface facing the fixing part (110) and a second vertical surface extending parallel to the first vertical surface. The distal end of the second vertical surface forms a second slot (210) with the same shape as the first slot (130) at a position corresponding to the first slot (130). The second slot (210) is configured to face the first slot (130) and to engage with the first slot (130) to clamp the high-lock nut (800) to be disassembled therebetween. A through hole (220) with a shape and position corresponding to the internal thread hole (140) of the fixing part (110) is formed in the middle of the slider (200). A locking member (300) comprising a rod portion (310) having external threads and a head (320) having a first interface (330); and A wrench (400) having a head with a protrusion (410) whose shape matches the first interface (330) of the locking member (300), thereby allowing the head of the wrench (400) to engage the first interface (330), thereby rotating the locking member (300). When the slider (200) is placed on the platform (120) of the support (100) and the locking member (300) passes through the through hole (220) on the slider (200) and the internal threaded hole (140) on the fixing part (110) in sequence, so that the threaded rod (310) of the locking member (300) engages with the internal threaded hole (140) on the fixing part (110), the protrusion (410) of the wrench (400) engages with the first interface (330) of the head (320) of the locking member (300), so that the distance between the first vertical plane and the second vertical plane can be adjusted by rotating the locking member (300), thereby adjusting the distance between the first slot (130) and the second slot (210) of the high lock nut to be removed, so as to clamp the high lock nut between the first slot (130) and the second slot (210).

2. The removal device for neck-break type high-lock nuts according to claim 1, characterized in that, The support (100) has a second interface (150) at its bottom opposite to the table surface (120). The protrusion (410) of the wrench (400) is configured to engage the second interface (150), thereby enabling the high-lock nut that is held in place by the support (100) to be rotated by rotating the wrench (400), so as to remove the high-lock nut.

3. The removal device for neck-break type high-lock nuts according to claim 1, characterized in that, The fixing part (110) has at least one pin hole (160) around the internal threaded hole (140), and the slider (200) also has through holes (250) around the through hole (220) corresponding to the pin holes (160) on the fixing part (110). The body of the dismantling device also includes at least one positioning pin (600), which is configured to pass through a corresponding through hole (250) and a corresponding pin hole (160) in sequence to guide the movement of the slider (200) relative to the fixing part (110).

4. The device for removing neck-break type high-lock nuts according to claim 1, characterized in that, The first slot (130) and the second slot (210) have a "V" shaped structure.

5. The removal device for neck-break type high-lock nuts according to claim 1, characterized in that, The surfaces of the first slot (130) and the second slot (210) are formed with a textured structure (710) that can increase the friction when in contact with the high-strength locking nut.

6. The device for removing neck-break type high-lock nuts according to claim 1, characterized in that, The slider (200) has a limiting platform (230) formed around the opening on the side of the through hole (220) opposite to the fixing part (110) for limiting the head (320) of the locking member (300).

7. The removal device for neck-break type high-lock nuts according to claim 6, characterized in that, The slider (200) is located on one side of the limiting platform (230) and the periphery of the through hole (220) has a through groove (240) that allows the head (320) of the locking member (300) to be inserted.

8. The removal device for neck-break type high-lock nuts according to claim 6, characterized in that, The body of the dismantling device also includes a washer (500) configured to be fitted onto the rod portion (310) of the locking member (300) and positioned between the head (320) of the locking member (300) and the limiting platform (230) in the installed state of the dismantling device.

9. The device for removing neck-break type high-lock nuts according to claim 1, characterized in that, The outer walls of the fixing part (110) and the slider (200) on the far side are both designed with a chamfered structure (720).

10. The removal device for neck-break type high-lock nuts according to claim 1, characterized in that, The protrusion (410) has a shape selected from any of the following: quadrilateral, pentagon, hexagon, and the first interface (330) and the second interface (150) are configured to have a shape that matches the protrusion (410).

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