CN201934430U - Transitional connecting device - Google Patents

Abstract

The utility model relates to a transition connection device, in particular to a connection device used in the transition between aircraft and aircraft support equipment. The biggest feature of the utility model is that one side of the base of the single-ear lug has a "U"-shaped groove, and the other side has an oblique round hole (both sides of the transition connection device in the prior art are cylindrical holes), and the direction of the centerline of the oblique round hole Extending down will move away from the tabs. The transitional connection device of the utility model has ingenious structural form, safe and reliable connection, and can effectively realize the transitional connection problem of the small space distance between the aircraft support equipment and the reserved connection hole of the aircraft and the centerlines are different planes. Therefore, it has great practical value.

Description

A transitional connection device

technical field

The utility model relates to a transition connection device, in particular to a connection device used in the transition between aircraft and aircraft support equipment.

Background technique

For the sake of safety and stability, aircraft support equipment often needs to be connected to the aircraft when in use, and a transition connection device is required for the connection. The transition connection devices of existing aircraft support equipment mainly include single-ear connection and binaural connection. Since the spacing of the connection holes reserved by the aircraft is generally relatively large, and the centerlines of the connection holes are basically parallel, the spacing of the connection holes of the matching single-ear or double-ear base is also relatively large, and the centerline of the connection holes is also basically parallel.

However, in practical engineering applications, due to the limitations of the aircraft structure, sometimes the spacing between the reserved connection holes on the aircraft is very small and the centerlines of the holes are not parallel, resulting in a large angle between different planes in space. If a conventional one-ear or two-ear transition connection device is used, the bolts will interfere with the lugs during connection and cannot pass through the connection hole. Therefore, the existing transitional connection device cannot meet the transitional connection requirements of the aircraft support equipment and the aircraft with a small space reserved for the connection hole with a different plane of the center line. Therefore, there is an urgent need for a transition connection device to meet the connection requirements between the aircraft and the aircraft support equipment in the above-mentioned small space.

Contents of the invention

The purpose of this utility model: in order to solve the problem that the existing transition connection device cannot realize the transition connection between the aircraft and the aircraft support equipment in a small space, the utility model provides a safe and reliable and can realize the aircraft and aircraft support equipment in a small space A transition connection for a transition connection.

Technical scheme of the utility model:

A transitional connection device, including a single-ear lug 1, a base 6, a first inclined washer 2, a first bolt 3, a second washer 4, and a second bolt 5; wherein, the base 6 is opened on one side with a "U" ”-shaped groove, and an oblique round hole is opened on the other side. The first bolt (3) passes through the first oblique gasket 2 and the “U” groove of the base in sequence, and the second bolt 5 passes through the second oblique gasket 4, The oblique circular hole of base, the diameter of first bolt (3) and the second bolt 5 are identical, and length is different, and the width of " U " type groove of base is equal to the diameter of oblique circular hole.

Preferably, the centerline of the "U"-shaped groove of the base and the centerline of the oblique circular hole have spatially different angles.

Preferably, the downward extension of the centerline of the oblique circular hole of the base will be away from the lugs.

Preferably, the diameters of the first bolt (3) and the second bolt 5 are 1 mm smaller than the diameter of the oblique circular hole.

The advantages of the utility model: the transition connection device of the utility model is ingenious in structure, safe and reliable in connection, and can effectively realize the transition connection problem of aircraft support equipment and aircraft reserved connection holes with small space spacing and different centerlines. Therefore, it has great practical value.

Description of drawings:

Fig. 1 is a structural schematic diagram of a preferred embodiment of the utility model transition connection device;

Fig. 2 is a schematic side view of a preferred embodiment of the transition connection device of the present invention.

Among them, 1 lug, 2 first slanted gasket, 3 first bolt, 4 second slanted gasket, 5 second bolt, 6 base.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The transition connection device will be described in detail below in conjunction with the accompanying drawings.

A transitional connection device, including a single-ear lug 1, a base 6, a first inclined washer 2, a first bolt 3, a second washer 4, and a second bolt 5; wherein, the base 6 is opened on one side with a "U" ”-shaped groove, and an oblique round hole is opened on the other side. The first bolt (3) passes through the first oblique gasket 2 and the “U” groove of the base in sequence, and the second bolt 5 passes through the second oblique gasket 4, The oblique circular hole of base, the diameter of first bolt (3) and the second bolt 5 are identical, and length is different, and the width of " U " type groove of base is equal to the diameter of oblique circular hole.

Preferably, the centerline of the "U"-shaped groove of the base and the centerline of the oblique circular hole have spatially different angles.

Preferably, the downward extension of the centerline of the oblique circular hole of the base will be away from the lugs.

Preferably, the diameters of the first bolt (3) and the second bolt 5 are 1 mm smaller than the diameter of the oblique circular hole.

The biggest feature of the utility model is that one side of the base 6 of the single-ear lug 1 has a "U"-shaped groove, and the other side has an oblique round hole (both sides of the transition connection device in the prior art are cylindrical holes), and the center of the oblique round hole Extending the wire direction down will be away from the tab. When in use, firstly screw the bolt 3 that interferes with the lug 1 with the first slant washer 4 into the nut reserved in the aircraft (reserve a certain margin), and then put the lug "U" groove Stuck on the first bolt 3, the first bolt 3 is basically located at the root of the lug 1; align the oblique round hole in the base of the lug 1 with the reserved connection hole of the aircraft, and then attach the second bolt 5 with the second oblique washer 4Insert into the oblique round hole until it is fully screwed into the reserved nut of the aircraft. Finally, the first bolt 5 is tightened. So far, the transitional connection between the aircraft support equipment and the aircraft has been realized.

The transitional connection device of the utility model has ingenious structural form, safe and reliable connection, and can effectively realize the transitional connection problem of the small space distance between the aircraft support equipment and the reserved connection hole of the aircraft and the centerlines are different planes. Therefore, it has great practical value.

Claims (4)

1. A transitional connection device, characterized in that it comprises a single ear piece (1), a base (6), a first inclined washer (2), a first bolt (3), a second washer (4), The second bolt (5); wherein, the base (6) has a "U"-shaped groove on one side, and an oblique round hole on the other side, and the first bolt (3) passes through the first oblique gasket (2), The "U" groove of the base, the second bolt (5) passes through the second slant washer (4) and the oblique round hole of the base in turn, the diameter of the first bolt (3) and the second bolt (5) are the same, the length Different, the width of the "U" groove of the base is equal to the diameter of the oblique circular hole. 2. The transition connection device according to claim 1, characterized in that the centerline of the "U"-shaped groove of the base and the centerline of the oblique circular hole have spatially different plane angles. 3. The transition connection device according to claim 2, characterized in that, the central line of the oblique circular hole of the base extends downwards away from the ear piece. 4. The transition connection device according to claim 1, 2 or 3, characterized in that the diameters of the first bolt (3) and the second bolt (5) are 1 mm smaller than the diameter of the oblique circular hole.

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