Precise screw with bidirectional locking mechanism

Abstract

The precision screw with the bidirectional locking mechanism comprises a base, a supporting part, a connecting seat, a supporting rod, a first thread and a second thread, the supporting part is fixed to the bottom of the base, the connecting seat is fixed to the bottom of the supporting part, the supporting rod is fixedly installed in the center of the bottom of the connecting seat, the first thread is arranged below the surface of the supporting rod, and the second thread is arranged below the surface of the supporting rod. A second thread is arranged above the first thread, and the first thread is connected with the second thread; four groups of the first threads and the second threads are arranged in a stacked manner; the rotation direction of the first thread is clockwise, and the rotation direction of the second thread is anticlockwise; the bottom of the connecting base is provided with a damping gasket used for preventing the precise screw from vibrating and falling off. The first thread, the second thread, the damping gasket and the like are matched for use, so that the stability of the precision screw during installation and use is improved, meanwhile, the precision screw also has a bidirectional locking effect, and the stability of the aircraft cabin door during installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of aircraft cabin door installation technology, specifically a precision screw with a two-way locking mechanism. Background Technology

[0002] Aircraft door installation refers to the process of correctly and safely installing aircraft doors (including passenger doors, cargo doors, emergency exit doors, etc.) onto the aircraft fuselage. This process involves multiple steps and technical requirements to ensure the functionality, safety, and reliability of the doors. Aircraft door installation is a critical step in aircraft manufacturing and maintenance, directly affecting the airworthiness of the aircraft and passenger safety. It involves multiple stages, including design, manufacturing, installation, testing, and certification. This process must strictly adhere to aviation standards and technical requirements to ensure the functionality, safety, and reliability of the doors. Aircraft door installation has significant application value in aircraft manufacturing, maintenance, and modification.

[0003] When installing aircraft cabin doors, precision screws are required to lock them in place to improve their stability. However, existing precision screws, when installed on aircraft cabin doors, can loosen due to vibrations generated during aircraft operation, posing a danger. Utility Model Content

[0004] The purpose of this invention is to provide a precision screw with a bidirectional locking mechanism. By setting a first thread, a second thread, and a damping washer, the stability of the precision screw during installation and use is improved. At the same time, the precision screw also has a bidirectional locking effect, thereby improving the stability of aircraft door installation; thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A precision screw with a bidirectional locking mechanism includes a base, a support, a connecting seat, a support rod, a first thread, and a second thread. The support is fixed to the bottom of the base, and the connecting seat is fixed to the bottom of the support. The support rod is fixedly installed at the center of the bottom of the connecting seat. The first thread is provided below the surface of the support rod, and the second thread is provided above the first thread. The first thread and the second thread are connected. There are four sets of the first thread and the second thread, which are stacked.

[0007] The first thread rotates clockwise, and the second thread rotates counterclockwise; the bottom of the connecting seat is provided with a damping pad for preventing the precision screw from vibrating and falling off, and the damping pad has a through hole in the center, which is fitted onto the outside of the support rod, the first thread and the second thread.

[0008] Preferably, the top of the damping pad is provided with six sets of locking rods evenly distributed, and the bottom surface of the connecting seat is provided with six sets of column grooves evenly distributed.

[0009] Preferably, a locking rod is engaged inside the column groove, and the locking rod is compatible with the column groove.

[0010] Preferably, the base has a groove at the top center, and a groove ring for hooking the finger is installed at the bottom center of the groove.

[0011] Preferably, the base is shaped as an octagonal prism.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model uses components such as a support rod, a first thread, and a second thread to work together, thereby improving the stability of aircraft door installation. Furthermore, the first and second threads are set to rotate in opposite directions to provide a two-way locking function, thus improving the stability of precision screws during use.

[0014] At the same time, by cooperating with components such as damping pads, locking rods, and column grooves, the precision screws are made to prevent vibration and fall off, thereby improving the reliability of the precision screw connection; and the damping pads are also made to be quick to disassemble and replace.

[0015] In summary, this utility model, through the use of the first thread, the second thread, and damping washers, facilitates the improvement of the stability of precision screws during installation and use. At the same time, the precision screws also have a two-way locking effect, thereby improving the stability of aircraft door installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the separation structure of the connecting seat and the damping plate of this utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure viewed from below.

[0020] In the figure: 1. Base; 101. Groove; 102. Groove ring; 2. Support part; 3. Connecting seat; 4. Support rod; 401. First thread; 402. Second thread; 5. Damping pad; 501. Locking rod; 502. Column groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution:

[0023] A precision screw with a bidirectional locking mechanism includes a base 1, a support 2, a connecting seat 3, a support rod 4, a first thread 401, and a second thread 402. The support 2 is fixed to the bottom of the base 1, and the connecting seat 3 is fixed to the bottom of the support 2. The support rod 4 is fixedly installed at the center of the bottom of the connecting seat 3. The first thread 401 is provided below the surface of the support rod 4, and the second thread 402 is provided above the first thread 401. The first thread 401 and the second thread 402 are connected. There are four sets of the first thread 401 and the second thread 402, which are stacked.

[0024] The first thread 401 rotates clockwise, and the second thread 402 rotates counterclockwise. By setting the rotation directions of the first thread 401 and the second thread 402 to clockwise and counterclockwise respectively, the precision screw has a bidirectional locking function to prevent it from loosening. The bottom of the connecting seat 3 is provided with a damping pad 5 for preventing the precision screw from vibrating and falling off, and the center of the damping pad 5 is provided with a through hole, which is fitted onto the outside of the support rod 4, the first thread 401 and the second thread 402.

[0025] The top of the damping pad 5 is evenly provided with six sets of locking rods 501, and the bottom surface of the connecting seat 3 is evenly provided with six sets of column grooves 502. The locking rods 501 are engaged inside the column grooves 502, and the locking rods 501 and column grooves 502 are compatible. By setting the locking rods 501 and column grooves 502, the damping pad 5 can be quickly disassembled and replaced. At the same time, it also facilitates the stability of the damping pad 5 during installation and prevents it from falling off the connecting seat 3.

[0026] This utility model uses components such as support rod 4, first thread 401 and second thread 402 to work together, thereby improving the stability of aircraft door installation. Furthermore, the first thread 401 and the second thread 402 are set with opposite rotation to enable bidirectional locking function, thus improving the stability of precision screws during use.

[0027] Meanwhile, by cooperating with components such as the damping pad 5, the locking rod 501, and the column groove 502, the precision screw can be made to prevent vibration and fall off, thereby improving the reliability of the precision screw connection; and the damping pad 5 can also be quickly disassembled and replaced.

[0028] In summary, this utility model uses the first thread 401, the second thread 402, and the damping washer 5 in combination to improve the stability of precision screw installation. At the same time, the precision screw also has a two-way locking effect, thereby improving the stability of aircraft door installation.

[0029] The base 1 has a groove 101 at its top center, and a groove ring 102 for hooking with fingers is installed at the center of the bottom of the groove 101. The groove 101 and groove ring 102 facilitate easy removal from the aircraft door mounting location. The base 1 is octagonal in shape, which facilitates tool operation.

[0030] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A precision screw with a bidirectional locking mechanism, comprising a base (1), a supporting part (2), a connecting seat (3), a supporting rod (4), a first thread (401) and a second thread (402), characterized in that: The bottom of the base (1) is fixed with a support part (2), the bottom of the support part (2) is fixed with a connecting seat (3), the bottom center of the connecting seat (3) is fixedly installed with a supporting rod (4), the surface of the supporting rod (4) is below provided with a first thread (401), the upper side of the first thread (401) is provided with a second thread (402), and the first thread (401) and the second thread (402) are connected; the first thread (401) and the second thread (402) are provided with four groups in a stacking mode; The rotation direction of the first thread (401) is clockwise rotation, and the rotation direction of the second thread (402) is counterclockwise rotation; the bottom of the connecting seat (3) is provided with a damping washer (5) for preventing the vibration of the precision screw from falling off, and the center of the damping washer (5) is provided with a through hole, which is sleeved outside the supporting rod (4), the first thread (401) and the second thread (402).

2. The precision screw with bidirectional locking mechanism according to claim 1, characterized in that: The top of the damping washer (5) is uniformly provided with six groups of clamping rods (501), and the bottom surface of the connecting seat (3) is uniformly provided with six groups of column grooves (502).

3. The precision screw with bidirectional locking mechanism according to claim 2, characterized in that: The inside of the column groove (502) is clamped with the clamping rod (501), and the clamping rod (501) and the column groove (502) are matched.

4. The precision screw with bidirectional locking mechanism according to claim 1, wherein: The top center of the base (1) is provided with a groove (101), and the inner bottom center of the groove (101) is installed with a groove ring (102) for hooking the finger part.

5. The precision screw with bidirectional locking mechanism according to claim 1, wherein: The shape of the base (1) is an octagonal prism.

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