阅读说明：本技术 一种具有自动找正功能的航空充氮气装置 (Aviation nitrogen filling device with automatic alignment function ) 是由 牛朝晖 李斌 张宝珍 许海强 张春雨 王阳阳 于 2019-10-16 设计创作，主要内容包括：本发明属于航空机械装配技术领域,涉及一种具有自动找正功能的航空充氮气装置。该技术方案包括采用万向接头(10)与充气杆(5)活动连接,万向接头(10)为球头结构,充气嘴部件(12)内的接口为凹半球形,万向接头(10)与充气嘴部件(12)对接后球头在凹半球内滑动,自动找正,轴线始终垂直充气口,这时氮气顺利进入光电产品。本发明具有结构简单、使用方便、经济实用,可广泛应用于航空光电产品的充氮气气、检漏等优点。(The invention belongs to the technical field of aviation machinery assembly, and relates to an aviation nitrogen filling device with an automatic alignment function. This technical scheme includes adopting universal joint (10) and aerifys pole (5) swing joint, and universal joint (10) are the bulb structure, and the interface in aerifing mouth part (12) is concave hemisphere, and universal joint (10) and aerify mouth part (12) butt joint back bulb slides in concave hemisphere, automatic alignment, and the axis is perpendicular inflation inlet all the time, and at this moment nitrogen gas gets into the photoelectric product smoothly. The invention has the advantages of simple structure, convenient use, economy and practicality, and can be widely applied to nitrogen filling, leakage detection and the like of aviation photoelectric products.)

1. The aviation nitrogen filling device with the automatic alignment function is characterized in that a universal joint (10) is movably connected with an air filling rod (5), the universal joint (10) is of a ball head structure, a connector in an air filling nozzle part (12) is of a concave hemispherical shape, and the ball head slides in the concave hemispherical after the universal joint (10) is in butt joint with the air filling nozzle part (12) to automatically align.

2. The aviation nitrogen filling device with the automatic alignment function according to claim 1, wherein the universal joint (10) is connected with the connecting block (8) through a movable connecting piece (9), the inflation rod (5) is connected to the connecting block (8), the universal joint (10), the connecting block (8) and the inflation rod (5) which are connected into a whole are arranged in the inflation shell (6), and the universal joint (10) extends out of the connecting end of the inflation shell (6).

3. The aviation nitrogen filling device with the automatic alignment function according to claim 1, wherein the other end of the air filling shell (6) is sequentially provided with a plug (3) and a handle (2) and is fastened through a nut (1).

4. The aviation nitrogen filling device with the automatic alignment function according to claim 1, further comprising an O-shaped ring (4), wherein the O-shaped ring (4) is sleeved outside the air filling rod (5) to play a sealing role.

5. The aviation nitrogen filling device with the automatic alignment function according to claim 1, wherein a gap is left between the inner wall of the filling shell (6) and the universal joint (10).

6. The aviation nitrogen filling device with the automatic alignment function according to claim 1, wherein the movable connecting piece (9) can be selected from a pin, a rotating shaft and a hinge.

Technical Field

The invention belongs to the technical field of aviation machinery assembly, and particularly relates to an aviation nitrogen filling device with an automatic alignment function.

Background

The aviation photoelectric product must be sealed because of technical requirements, and the product cavity needs to be flushed with nitrogen frequently to keep the inside dry, and the existing aviation nitrogen filling device does not have an automatic alignment function because of the inflation rod, so that the inflation rod and the inflation port are easily seized by threads in the nitrogen filling process, and even the product is damaged.

Disclosure of Invention

The purpose of the invention is as follows: provides an aviation nitrogen filling device with an automatic alignment function.

The technical scheme of the invention is as follows:

an aviation nitrogen filling device with an automatic alignment function adopts a universal joint 10 and an air filling rod 5 to be movably connected, the universal joint 10 is of a ball head structure, a connector in an air filling nozzle part 12 is of a concave hemisphere shape, and the ball head slides in the concave hemisphere after the universal joint 10 is in butt joint with the air filling nozzle part 12, so that automatic alignment is realized.

Preferably, the aviation nitrogen filling device with the automatic alignment function is characterized in that the universal joint 10 is connected with the connecting block 8 through the movable connecting piece 9, the inflating rod 5 is connected onto the connecting block 8, the universal joint 10, the connecting block 8 and the inflating rod 5 which are connected into a whole are arranged in the inflating shell 6, and the universal joint 10 extends out of the connecting end of the inflating shell 6.

Preferably, the aviation nitrogen filling device with the automatic alignment function is characterized in that the other end of the air filling shell 6 is sequentially provided with a plug 3 and a handle 2 and is fastened through a nut 1.

Preferably, the aviation nitrogen filling device with the automatic alignment function further comprises an O-shaped ring 4, and the O-shaped ring 4 is sleeved outside the air filling rod 5 to play a sealing role.

Preferably, in the aviation nitrogen filling device with the automatic alignment function, a gap is reserved between the inner wall of the filling shell 6 and the universal joint 10.

Preferably, the movable connecting piece 9 of the aviation nitrogen filling device with the automatic alignment function can be selected from a pin, a rotating shaft and a hinge.

Has the advantages that: the invention provides an aviation nitrogen filling device with an automatic alignment function. The device has the advantages of simple structure, convenient use, economy, practicality, wide application in nitrogen filling, leakage detection and the like of aviation photoelectric products.

Drawings

Fig. 1 is a cross-sectional view of a schematic structural view of the present invention.

Fig. 2 is a sectional view showing a structure of the present invention in a use state.

As shown in figure 1, the aviation nitrogen filling device is characterized by comprising an air filling shell 6, an air filling rod 5, a connecting block 8, a movable connecting device 9, a universal joint 10, an O-shaped ring 4, a plug 3, a handle 2, a nut 1 and a screw 7.

Detailed Description

The invention will now be further described with reference to the following examples and drawings:

as shown in figure 1, the aviation nitrogen filling device 11 comprises an air filling shell 6, an air filling rod 5, a connecting block 8, a movable connecting piece 9, a universal joint 10, an O-shaped ring 4, a plug 3, a handle 2, a nut 1 and a screw 7.

Universal joint 10 is connected with connecting block 8 through swing joint 9, aerify pole 5 and connect on connecting block 8, universal joint 10 that links into an integrated whole, connecting block 8, aerify pole 5 and arrange in aerifing casing 6, O shape circle 4 suits plays sealed effect outside aerifing pole 5, and universal joint 10 stretches out from the link of aerifing casing 6, and the other end of aerifing casing 6 is equipped with end cap 3, handle 2 in proper order and fastens through nut 1.

The nitrogen filling device 11 shown in fig. 2 is butted with a charging nozzle part 12 of a photoelectric product 13. The butt joint in the charging connector part 12 is concave hemispherical, the universal joint 10 is in a ball head shape, after the universal joint 10 is connected into the charging connector part 12, the handle is rotated, the universal joint is automatically aligned, if the butt joint angle of the nitrogen charging device 11 deviates, the universal joint 10 is automatically aligned, the connection relation between the universal joint 10 and the connecting block 8 can rotate around the movable connecting piece 9, the axis of the universal joint 10 is always perpendicular to the charging opening, and at the moment, nitrogen smoothly enters the photoelectric product.

The movable connecting piece 9 can be selected from a pin, a rotating shaft, a hinge and the like.

The nitrogen device 11 is abutted with the charging nozzle part 12 of the photoelectric product 13 and then can be fastened through the screw 7.

The invention has the advantages of simple structure, convenient use, economy and practicality, and can be widely applied to the disassembly of aerospace drying cylinders and the disassembly of inner hole parts.