Inner support locking lifting handle

Abstract

The utility model provides an inner support locking lifting handle, and relates to the technical field of lifting handles. A flat gasket and a spring gasket are arranged between a hand wheel and a nut of the inner support locking lifting handle, so that the nut cannot rotate along with the hand wheel in the rotating process of the hand wheel, the axial relative position of the hand wheel and the nut is kept unchanged, and it is guaranteed that the axial relative position of the hand wheel and the head of a long bolt is kept unchanged in the rotating process of the hand wheel. When the inner support locking lifting handle is used, the lining and the rubber sleeve extend into the mounting hole of the opening cover, the hand wheel sleeve is screwed to drive the hand wheel to rotate, the lining is driven to move axially, the head of the long bolt is matched to extrude the rubber sleeve, so that the rubber sleeve is deformed, opened and locked in the mounting hole of the opening cover, and the hand wheel sleeve is reversely screwed during disassembly to unlock. And the handle is used as a stress point, so that the opening cover is very convenient to assemble and disassemble.

Description

Technical Field

[0001] This utility model relates to the field of lifting handle technology, specifically to an internally supported locking lifting handle. Background Technology

[0002] Currently, the access panels for rockets and other aircraft are often smooth, curved surfaces to meet aerodynamic requirements. Because there are no stress points on the outside of the panel, its installation and removal are quite difficult. When removing the panel, one needs to pry open the edge with their fingernail to create a gap on one side, or use its own weight to create a gap, or use a tool to pry up one side before holding the panel to remove it smoothly. When installing the panel, one hand holds it while the other hand helps press one side of the panel into the mounting slot, and both hands support the panel to fully insert it into the slot. During installation, there is a risk of the panel falling or damaging its edges. When disassembling, panels located above the aircraft are difficult to remove, and even small temperature differences creating negative pressure inside the panel can make removal difficult. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an internal support locking lifting handle, which solves the problem of inconvenient loading and unloading of aircraft hatches.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An internal support locking lifting handle, the internal support locking lifting handle comprising: a liner, a handle, and an internal support locking assembly;

[0006] The liner is provided with a handle and several internal support locking components, and the liner is connected to the mounting hole of the cover through the internal support locking components;

[0007] The inner support locking assembly includes: a long bolt, a rubber sleeve, a bushing, a handwheel, a handwheel limit block, a handwheel sleeve, a flat washer, a spring washer, and a nut;

[0008] The liner has through holes that correspond one-to-one with the inner support locking components. The bushing slides freely along the axial direction of the through holes, and the through holes restrict the bushing from rotating along the axis.

[0009] The handwheel is mounted on the liner via a handwheel limiting block, which restricts the axial movement of the handwheel, allowing the handwheel to rotate freely along the axis.

[0010] The inner wall of the handwheel is provided with an internal thread, and the outer wall of the bushing is provided with an external thread. The external thread of the bushing is threadedly connected to the internal thread of the handwheel.

[0011] The handwheel sleeve is fitted over the handwheel;

[0012] The long bolt passes through the rubber sleeve, bushing, handwheel, flat washer, and spring washer in sequence before being threaded into the nut, thus limiting the axial distance between the rubber sleeve and the handwheel.

[0013] Preferably, the outer wall of the bushing is provided with a guide block, and the through hole is provided with a plurality of guide grooves that match the guide block. The guide block slides along the guide grooves to restrict the bushing from rotating relative to the through hole.

[0014] Preferably, the outer wall of the handwheel is provided with a limiting ring, the handwheel limiting block is provided with a handwheel through hole, the bottom end of the handwheel through hole is provided with a limiting countersunk hole, the top of the handwheel passes through the handwheel through hole and passes through the handwheel limiting block, and the handwheel limiting block is fixed to the liner by bolts, thereby limiting the limiting ring in the limiting countersunk hole, thereby achieving axial limiting of the handwheel, but without affecting the rotation of the handwheel along the axis.

[0015] Preferably, the handwheel limiting block has a plurality of mounting holes, and the liner has screw holes that correspond one-to-one with the mounting holes. Bolts pass through the mounting holes and are threadedly connected to the screw holes to fix the handwheel limiting block and the liner.

[0016] Preferably, the number of mounting holes on the handwheel limiting block is not less than three.

[0017] Preferably, a keyway is provided on the top of the outer wall of the handwheel, and a limit key corresponding to the keyway is provided on the inner wall of the handwheel sleeve, and the limit key engages with the keyway.

[0018] Preferably, the bottom of the keyway is higher than the top of the handwheel limiting block to avoid the bottom of the handwheel sleeve contacting the top of the handwheel limiting block.

[0019] This utility model provides an internally supported locking lifting handle. Compared with the prior art, it has the following advantages:

[0020] In this invention, a flat washer and a spring washer are provided between the handwheel and the nut of the inner support locking pull handle, so that the nut will not rotate during the rotation of the handwheel, and the axial relative position of the two remains unchanged, ensuring that the axial relative position of the handwheel and the head of the long bolt remains unchanged during the rotation of the handwheel; when using the inner support locking pull handle, the bushing and rubber sleeve are inserted into the mounting hole of the cap, and the handwheel sleeve is turned to drive the handwheel to rotate, which drives the bushing to move axially. The head of the long bolt squeezes the rubber sleeve, causing the rubber sleeve to deform and open and lock into the mounting hole of the cap. When disassembling, the handwheel sleeve is turned in reverse to unlock, realizing convenient installation and removal of the handle and the cap. With the handle as a force point, the installation and removal of the cap becomes very convenient. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a top-view exploded axonometric view of the inner support locking lifting handle in an embodiment of this utility model.

[0023] Figure 2 This is an exploded axonometric view of the inner support locking handle in an embodiment of this utility model.

[0024] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0025] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0026] The reference numerals in the figure are set as follows: liner plate 10, through hole 11, guide groove 12, screw hole 13, handle 20, inner support locking assembly 30, long bolt 31, rubber sleeve 32, bushing 33, guide block 331, handwheel 34, limit ring 341, keyway 342, handwheel limit block 35, handwheel through hole 351, limit countersunk hole 352, mounting hole 353, handwheel sleeve 36, limit key 361, flat washer 37, spring washer 38, nut 39. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This application provides an internal support locking lifting handle, which solves the problem of inconvenient installation and removal of aircraft hatches.

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] Example:

[0031] like Figures 1-4As shown, this utility model provides an internal support locking pull handle, which includes: a liner 10, a handle 20, and an internal support locking assembly 30;

[0032] The liner 10 is provided with a handle 20 and several inner support locking components 30. The liner 10 is connected to the mounting hole of the cover through the inner support locking components 30, providing a force point for the cover and facilitating the installation and removal of the cover.

[0033] The inner support locking assembly 30 includes: a long bolt 31, a rubber sleeve 32, a bushing 33, a handwheel 34, a handwheel limiting block 35, a handwheel sleeve 36, a flat washer 37, a spring washer 38, and a nut 39.

[0034] The liner 10 has through holes 11 that correspond one-to-one with the inner support locking assembly 30. The bushing 33 slides freely along the axial direction of the through hole 11, and the through hole 11 restricts the bushing 33 from rotating along the axis.

[0035] The handwheel 34 is mounted on the liner 10 via a handwheel limiting block 35. The handwheel limiting block 35 restricts the axial movement of the handwheel 34, allowing the handwheel 34 to rotate freely along the axis.

[0036] The handwheel 34 has an internal thread on its inner wall and the bushing 33 has an external thread on its outer wall. The external thread of the bushing 33 is threadedly connected to the internal thread of the handwheel 34.

[0037] The handwheel sleeve 36 is fitted over the handwheel 34 to increase the rotational lever arm of the handwheel 34, making it easier to manually drive the handwheel 34 to rotate.

[0038] The long bolt 31 passes through the rubber sleeve 32, bushing 33, handwheel 34, flat washer 37, and spring washer 38 in sequence and is then threadedly connected to the nut 39, thereby limiting the axial distance between the rubber sleeve 32 and the handwheel 34.

[0039] like Figures 1-4 As shown, the outer wall of the bushing 33 is provided with a guide block 331, and the through hole 11 is provided with a plurality of guide grooves 12 that match the guide block 331. The guide block 331 slides along the guide grooves 12 to restrict the bushing 33 from rotating relative to the through hole 11.

[0040] like Figures 1-4 As shown, the handwheel 34 has a limiting ring 341 on its outer wall, and the handwheel limiting block 35 has a handwheel through hole 351. The bottom end of the handwheel through hole 351 has a limiting countersunk hole 352. The top of the handwheel 34 passes through the handwheel through hole 351 and the handwheel limiting block 35. The handwheel limiting block 35 is fixed to the liner 10 by bolts, which restricts the limiting ring 341 in the limiting countersunk hole 352, thereby achieving axial limiting of the handwheel 34, but without affecting the rotation of the handwheel 34 along the axis.

[0041] like Figures 1-4As shown, the handwheel limiting block 35 has a plurality of mounting holes 353, and the liner plate 10 has screw holes 13 corresponding to the mounting holes 353 one by one. The bolts pass through the mounting holes 353 and are threadedly connected to the screw holes 13 to fix the handwheel limiting block 35 and the liner plate 10.

[0042] like Figures 1-4 As shown, the number of mounting holes 353 on the handwheel limiting block 35 is not less than three.

[0043] like Figures 1-4 As shown, a keyway 342 is provided on the top of the outer wall of the handwheel 34, and a limit key 361 corresponding to the keyway 342 is provided on the inner wall of the handwheel sleeve 36. The limit key 361 is engaged with the keyway 342 to prevent the handwheel sleeve 36 from slipping relative to the handwheel 34 during rotation.

[0044] like Figures 1-4 As shown, the bottom of the keyway 342 is higher than the top of the handwheel limiting block 35 to prevent the bottom of the handwheel sleeve 36 from contacting the top of the handwheel limiting block 35 and to prevent the handwheel limiting block 35 from obstructing the rotation of the handwheel sleeve 36.

[0045] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0046] In this embodiment of the utility model, a flat washer 37 and a spring washer 38 are provided between the handwheel 34 and the nut 39 of the inner support locking pull handle, so that the nut 39 will not rotate during the rotation of the handwheel 34, and the axial relative position of the two remains unchanged, ensuring that the axial relative position of the handwheel 34 and the head of the long bolt 31 remains unchanged during the rotation of the handwheel 34. When the inner support locking pull handle is used, the bushing 33 and the rubber sleeve 32 are inserted into the mounting hole of the cap, and the handwheel sleeve 36 is turned to drive the handwheel 34 to rotate, which drives the bushing 33 to move axially. The head of the long bolt 31 compresses the rubber sleeve 32, so that the rubber sleeve 32 deforms and opens and locks in the mounting hole of the cap. When disassembling, the handwheel sleeve 36 is turned in reverse to unlock, realizing the convenient installation and removal of the handle 20 and the cap. With the handle 20 as the force point, the installation and removal of the cap becomes very convenient.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An internally supported locking lifting handle, characterized in that, The inner support locking pull handle includes: a liner (10), a handle (20), and an inner support locking assembly (30); The liner (10) is provided with a handle (20) and several inner support locking components (30), and the liner (10) is connected to the mounting hole of the cover through the inner support locking components (30); The inner support locking assembly (30) includes: a long bolt (31), a rubber sleeve (32), a bushing (33), a handwheel (34), a handwheel limit block (35), a handwheel sleeve (36), a flat washer (37), a spring washer (38), and a nut (39); The liner (10) has through holes (11) that correspond one-to-one with the inner support locking assembly (30). The bushing (33) slides freely along the axial direction of the through hole (11), and the through hole (11) restricts the bushing (33) from rotating along the axis. The handwheel (34) is mounted on the liner (10) via a handwheel limiting block (35). The handwheel limiting block (35) restricts the axial movement of the handwheel (34), allowing the handwheel (34) to rotate freely along the axis. The inner wall of the handwheel (34) is provided with an internal thread, and the outer wall of the bushing (33) is provided with an external thread. The external thread of the bushing (33) is threadedly connected to the internal thread of the handwheel (34). The handwheel sleeve (36) is fitted over the handwheel (34); The long bolt (31) passes through the rubber sleeve (32), bushing (33), handwheel (34), flat washer (37), and spring washer (38) in sequence and is then threadedly connected to the nut (39), limiting the axial distance between the rubber sleeve (32) and the handwheel (34).

2. The inner support locking lifting handle as described in claim 1, characterized in that, The outer wall of the bushing (33) is provided with a guide block (331), and the through hole (11) is provided with a plurality of guide grooves (12) that match the guide block (331). The guide block (331) slides along the guide groove (12) to restrict the bushing (33) from rotating relative to the through hole (11).

3. The inner support locking lifting handle as described in claim 1, characterized in that, The handwheel (34) has a limiting ring (341) on its outer wall and a handwheel limiting block (35) with a handwheel through hole (351). The bottom end of the handwheel through hole (351) has a limiting countersunk hole (352). The top end of the handwheel (34) passes through the handwheel through hole (351) and through the handwheel limiting block (35). The handwheel limiting block (35) is fixed to the liner (10) with bolts, which restricts the limiting ring (341) within the limiting countersunk hole (352) to achieve axial limiting of the handwheel (34) without affecting the rotation of the handwheel (34) along the axis.

4. The inner support locking lifting handle as described in claim 1, characterized in that, The handwheel limiting block (35) has several mounting holes (353), and the liner (10) has screw holes (13) that correspond one-to-one with the mounting holes (353). The bolt passes through the mounting holes (353) and is threadedly connected to the screw holes (13) to fix the handwheel limiting block (35) and the liner (10).

5. The inner support locking lifting handle as described in claim 4, characterized in that, The number of mounting holes (353) on the handwheel limit block (35) is not less than three.

6. The inner support locking lifting handle as described in claim 1, characterized in that, The top of the outer wall of the handwheel (34) is provided with a keyway (342), and the inner wall of the handwheel sleeve (36) is provided with a limit key (361) corresponding to the keyway (342), and the limit key (361) is engaged with the keyway (342).

7. The inner support locking lifting handle as described in claim 6, characterized in that, The bottom of the keyway (342) is higher than the top of the handwheel limiting block (35) to prevent the bottom of the handwheel sleeve (36) from contacting the top of the handwheel limiting block (35).

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