Telescopic embedded lifting lug mechanism

Abstract

The utility model relates to the technical field of lifting lugs, and provides a telescopic embedded lifting lug mechanism which comprises a sliding sleeve, and two guide tables are arranged in the sliding sleeve in the axial direction. A lifting hole is formed in one end of the lifting lug core shaft, a blocking table is arranged in the middle of the lifting lug core shaft, the lifting lug core shaft penetrates through the guide tables, and the blocking table is located between the two guide tables; the elastic piece is arranged on the lifting lug core shaft in a sleeving manner and is mounted between the blocking table and the guide table far away from the lifting hole; the guide limiting plate is arranged at the end, away from the lifting hole, of the lifting lug mandrel, a limiting boss is arranged on the side wall of the guide limiting plate, a guide groove matched with the limiting boss is formed in the inner wall of the sliding base in the axial direction, a limiting groove formed in the circumferential direction of the sliding base is formed in the end, away from the lifting lug mandrel, of the guide groove, and the limiting groove communicates with the guide groove. When the limiting boss rotates into the limiting groove, the lifting lug core shaft is shielded by the sliding sleeve, and when the limiting boss retreats from the limiting groove, the lifting lug hole of the lifting lug core shaft is exposed out of the sliding sleeve under the action of the elastic piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lifting lug technical field, specifically, a telescopic built-in lifting lug mechanism. BACKGROUND

[0002] Lifting lug (also called lifting ring) is a force component installed on equipment for hoisting, and is an important connecting piece for equipment hoisting, which is directly related to the hoisting safety of equipment. At present, the existing lifting lug is usually fixed or foldable, and in the aviation field, for example, the lifting lug used when hoisting the cabin body of a simulated cockpit of an airplane, the lifting lug cannot be exposed outside the skin, and the existing lifting lug cannot meet the use requirements. SUMMARY

[0003] The utility model aims at providing a telescopic built-in lifting lug mechanism to solve the defect that the existing lifting lug cannot be applied to special use occasions in the aviation field.

[0004] The utility model realizes the following technical scheme:

[0005] A telescopic built-in lifting lug mechanism comprises:

[0006] A sliding sleeve is provided with two guide tables in the axial direction inside the sliding sleeve;

[0007] A lifting lug mandrel is provided with a lifting hole at one end and a stop table at the middle part, the lifting lug mandrel is arranged on the guide tables, and the stop table is located between the two guide tables;

[0008] An elastic member is arranged on the lifting lug mandrel shaft and is installed between the stop table and the guide table away from the lifting hole; and

[0009] A guide limiting plate is arranged at the end of the lifting lug mandrel away from the lifting hole, a limiting convex table is arranged on the side wall of the guide limiting plate, a guide groove matched with the limiting convex table is arranged on the inner wall of the sliding seat in the axial direction, a limiting groove arranged in the circumferential direction of the sliding seat is arranged at the end of the guide groove away from the lifting lug mandrel, the limiting groove is communicated with the guide groove, when the limiting convex table is turned into the limiting groove, the lifting lug mandrel is shielded by the sliding sleeve, and when the limiting convex table exits the limiting groove, the lifting lug hole of the lifting lug mandrel is exposed outside the sliding sleeve under the action of the elastic member.

[0010] Optionally, the two limiting convex tables are symmetrically arranged.

[0011] Optionally, the limiting grooves corresponding to the two limiting convex tables are not communicated.

[0012] Optionally, the sliding sleeve comprises an upper sliding sleeve and a lower sliding sleeve, and the upper sliding sleeve and the lower sliding sleeve are connected through fasteners.

[0013] Optionally, the guide limiting plate and the lifting lug mandrel are connected through fasteners.

[0014] Optionally, the end face of the lug spindle near the lifting hole is provided with a wrench hole for connecting a wrench tool.

[0015] Optionally, the elastic element is a spring.

[0016] Optionally, a mounting plate is fixedly connected to one end of the slide.

[0017] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, when applied, the sliding sleeve is installed on the part that needs to be hoisted, with the end near the hoisting hole flush with the surface of the equipment. When not hoisting, the guide limiting plate is inserted into the limiting groove by pressing and rotating the hoisting lug core shaft (i.e., the limiting boss and the guide groove are misaligned), and the entire hoisting lug core shaft is embedded inside the sliding sleeve and hidden. When hoisting is required, the hoisting lug core shaft is rotated to align the limiting boss with the guide groove. Under the elastic force of the elastic element, the hoisting lug core shaft moves axially, exposing the hoisting hole to the outside of the sliding sleeve. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A half-sectional structural diagram of a telescopic embedded lifting lug mechanism provided for this utility model (lifting lug core shaft exposed);

[0020] Figure 2 An exploded view of a telescopic embedded lifting lug mechanism provided for this utility model;

[0021] Figure 3 This is a schematic diagram of a half-section of the sliding sleeve.

[0022] Figure 4 A half-sectional structural diagram of a telescopic embedded lifting lug mechanism provided for this utility model (lifting lug spindle retracted state);

[0023] Figure 5 A diagram illustrating the usage state of a telescopic embedded lifting lug mechanism provided by this utility model;

[0024] Icons: 1-Sliding sleeve, 101-Upper sliding sleeve, 102-Lower sliding sleeve, 103-Guide platform, 104-Guide groove, 105-Limiting groove, 2-Lifting lug spindle, 201-Lifting hole, 202-Block, 203-Wrench hole, 3-Elastic element, 4-Guide limiting plate, 401-Limiting protrusion, 5-Mounting plate, 6-Aircraft simulator cockpit body, 7-Lifting rope. DETAILED DESCRIPTION

[0025] Reference Figures 1-3 A telescopic embedded lifting lug mechanism includes a sliding sleeve 1, a lifting lug mandrel 2, an elastic member 3 and a guide limiting plate 4.

[0026] The lifting lug mandrel 2 is provided with a lifting hole 201 at one end, and is provided with a stop table 202 at the middle part. It should be understood that the “middle part” here should not be understood as the center position of the lifting lug mandrel 2, but as any position between the two ends.

[0027] The sliding sleeve 1 of the embodiment includes an upper sliding sleeve 101 and a lower sliding sleeve 102, which are connected by fasteners (such as screws). Two guide tables 103 are provided axially in the sliding sleeve 1, the lifting lug mandrel 2 is arranged on the guide tables 103 (i.e. the guide tables 103 serve as a guide for the axial movement of the lifting lug mandrel 2), and the stop table 202 is located between the two guide tables 103.

[0028] The elastic member 3 is sleeved on the shaft of the lifting lug mandrel 2 and is installed between the stop table 202 and the guide table 103 away from the lifting hole 201, so that the end of the lifting lug mandrel 2 provided with the lifting hole 201 is exposed outside the sliding sleeve 1 under the action of the elastic member 3 without the restriction of external force. As an option, the elastic member 3 of the embodiment is a spring.

[0029] The guide limiting plate 4 is arranged at the end of the lifting lug mandrel 2 away from the lifting hole 201. Specifically, the guide limiting plate 4 of the embodiment is connected with the lifting lug mandrel 2 by fasteners (such as screws). The side wall of the guide limiting plate 4 is provided with a limiting boss, and the inner wall of the sliding seat is provided with a guide groove 104 adapted to the limiting boss along the axial direction, i.e. the limiting boss moves along the guide groove 104 when the lifting lug mandrel 2 moves, thereby limiting the rotation of the lifting lug mandrel 2. The end of the guide groove 104 away from the lifting lug mandrel 2 is provided with a limiting groove 105 arranged along the circumferential direction of the sliding seat, and the limiting groove 105 is in communication with the guide groove 104.

[0030] In actual application, by pressing and rotating the lifting lug mandrel 2, the limiting boss is slid into the limiting groove 105 and rotated by a certain angle (i.e. clamped in the limiting groove 105), at this time the elastic member 3 is compressed, and the lifting lug mandrel 2 is retracted into the sliding sleeve 1 and hidden by the sliding sleeve 1 (as shown in Figure 4 When the lifting hole 201 needs to be used, the lifting lug mandrel 2 is rotated to align the limiting boss with the guide groove 104, and under the elastic force of the elastic member 3, the lifting lug mandrel 2 moves axially, so that the lifting hole 201 is exposed outside the sliding sleeve 1 (as shown in Figure 1

[0031] ​Since the lug mandrel 2 needs to be rotated during operation, the embodiment is provided with a wrench hole 203 for connecting a wrench tool at the end face of the lug mandrel 2 close to the lifting hole 201, so as to facilitate the rotation of the lug mandrel 2 by the wrench tool. As an option, the wrench hole 203 of the embodiment is designed in a straight line type, so as to be pressed and rotated by a straight screwdriver. Of course, in other embodiments, the wrench hole 203 can also be designed in other shapes, and is operated by a corresponding wrench tool, for example, the wrench hole 203 is designed in a plum blossom type and is operated by a plum blossom screwdriver, or is designed in an internal hexagonal type and is operated by a hexagonal wrench.

[0032] As an option, the two limiting bosses are symmetrically arranged, and the corresponding guide grooves 104 and limiting grooves 105 are also provided with two, so as to ensure the structural stability. On this basis, the limiting grooves 105 corresponding to the two limiting bosses are not connected, that is, the two limiting grooves 105 do not form a ring groove. It is worth noting that, in this way, the lug mandrel 2 can be twisted to the bottom in one direction during operation, so that the limiting boss is aligned with the guide groove 104, avoiding the need to repeatedly rotate the lug mandrel 2 to align the limiting boss with the guide groove 104 during operation.

[0033] Reference Figure 5 Taking the application on the aircraft simulation cabin body 6 as an example, in actual application, the sliding sleeve 1 is installed at the bottom of the aircraft simulation cabin body 6. It is easy to understand that, in order to avoid being exposed on the surface of the aircraft simulation cabin body 6, the sliding sleeve 1 is installed inside the profile at the bottom of the aircraft simulation cabin body 6. When in use, the lifting hole 201 can be hung by the lifting rope 7, and after the hoisting is completed, the lug mandrel 2 is retracted and is not exposed.

[0034] In order to facilitate installation, one end of the sliding seat of the embodiment is fixedly connected (for example, connected by screws, welded, etc.) with a mounting plate 5, and the mounting plate 5 is provided with a mounting hole. The mounting plate 5 is connected with the bottom of the aircraft simulation cabin body 6 by screws or the like. Of course, in other embodiments, the mounting plate 5 can also not be provided, and a connecting structure can be provided on the sliding sleeve 1 to achieve installation.

[0035] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A telescopic recessed lifting lug mechanism, characterized in that, The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

2. The telescopic recessed lug mechanism according to claim 1, wherein The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

3. The telescopic recessed lug mechanism according to claim 2, wherein The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

4. The telescopic recessed lifting lug mechanism according to any one of claims 1-3, characterized in that, The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

5. The telescopic recessed lifting lug mechanism according to any one of claims 1-3, characterized in that, The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

6. The telescopic recessed lug mechanism according to any one of claims 1-3, wherein The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

7. The telescopic recessed lifting lug mechanism according to any one of claims 1-3, wherein, The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug.

8. The telescopic recessed lug mechanism according to any one of claims 1-3, wherein The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which are used for lifting lug. The utility model relates to a lifting lug core shaft, a sliding sleeve and a sliding seat, which

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