Aircraft conformal pressure hole suction cup clamp capable of being adsorbed on non-smooth plane

Abstract

The invention relates to a suction cup clamp, in particular to an aircraft conformal pressure measuring hole suction cup clamp capable of being adsorbed on a non-smooth plane. An aircraft conformal pressure hole suction cup clamp capable of being adsorbed on a non-smooth plane comprises a vacuum pump, and the vacuum pump is connected with a suction cup clamp unit through an air pipeline. The suction cup clamp unit comprises suction cups and a pressure hole clamp base, and the suction cups are distributed around the pressure hole clamp base; during use, the pressure hole clamp base is aligned with a pressure hole, a vacuum pump switch is turned on, and the sucker is adsorbed on the surface of an aircraft. The method has the following advantages that the efficiency and speed of mounting the air pressure altitude simulator clamp are improved, and the time cost of aircraft detection is saved.

Description

Technical Field

[0001] The invention relates to a suction cup fixture, in particular to a suction cup fixture for a conformal pressure measuring hole of an aircraft which can be adsorbed on a non-smooth plane. Background Art

[0002] Aircraft usually have an atmospheric data system, which is designed with a pitot tube or conformal pressure hole at the location where it senses the external environmental pressure. When the conformal pressure hole atmospheric data system is performing the atmospheric measurement process, the atmospheric environment gas pressure simulated by the external pressure altitude simulator needs to be led to the aircraft pressure hole through a fixture, and it needs to be sealed to prevent measurement anomalies caused by leakage. Therefore, the fixture is generally equipped with a suction cup to fix the pipeline on the pressure hole.

[0003] However, the suction cups that come with ordinary clamps have the problem of insufficient sealing. When the surface of the aircraft is not smooth enough, the suction cups cannot be firmly attached to the surface of the aircraft. In addition, the process of manually attaching the suction cups to the surface of the aircraft is rather cumbersome and not quick and convenient enough. Summary of the invention

[0004] The purpose of the present invention is to provide a conformal pressure measuring hole suction cup fixture for an aircraft that can be adsorbed on a non-smooth plane, so as to upgrade and improve the atmospheric altitude simulator and avoid the problem that the suction cup cannot be firmly adsorbed on the surface of the aircraft.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a conformal pressure measuring hole suction cup fixture for an aircraft that can be adsorbed on a non-smooth plane, including a vacuum pump, which is connected to a suction cup fixture unit through an air pipeline; the suction cup fixture unit includes a suction cup and a pressure measuring hole fixture base, and the suction cup is arranged around the pressure measuring hole fixture base; when in use, align the pressure measuring hole fixture base with the pressure measuring hole, turn on the vacuum pump switch, and the suction cup is adsorbed on the surface of the aircraft.

[0006] Preferably, there are multiple suction cup clamp units, which are connected to the vacuum pump through air pipelines respectively.

[0007] Preferably, the suction cup clamp unit also has a pipeline switch, and the pipeline switch is arranged at the air pipeline inlet position of each test point to control the suction cup to draw or release air.

[0008] Preferably, a control unit is provided in the vacuum pump; a pressure sensor is provided on the air pipeline of each test point; the control unit is used to monitor the pressure sensor and further control the opening and closing of the pipeline switch.

[0009] Preferably, there are multiple suction cups arranged on a circle centered on the pressure measuring hole fixture base.

[0010] Compared with the prior art, the present invention has the following advantages: the efficiency and speed of installing the air pressure altitude simulator fixture are improved, and the time cost of aircraft detection is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the composition of an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of a suction cup clamp unit in an embodiment of the present invention; Figure 1-2 Among them, 1. vacuum pump; 2. suction cup fixture unit; 3. air pipeline; 2-1. suction cup; 2-2. pipeline switch; 2-3. pressure measuring hole fixture base. DETAILED DESCRIPTION

[0012] The following is combined with Figure 1-2 The present invention is further described in detail: a suction cup clamp for a conformal pressure measuring hole of an aircraft that can be adsorbed on a non-smooth plane, comprising a vacuum pump 1, a suction cup clamp unit 2 and an air pipeline 3. The vacuum pump 1 is connected to the suction cup clamp unit 2 through the air pipeline 3. In the present embodiment, there are multiple suction cup clamp units 2, which are respectively connected to the vacuum pump 1 through the air pipeline 3.

[0013] like Figure 1 As shown, specifically, the air pipeline 3 includes a main pipeline, a branch pipeline and a branch pipeline. One end of the main pipeline is connected to the vacuum pump 1, and the other end is connected to multiple branch pipelines. The other end of the branch pipeline is respectively connected to multiple branch pipelines, and the other end of the branch pipeline is respectively connected to the suction cup clamp unit 2.

[0014] like Figure 2 As shown, the suction cup clamp unit 2 includes a suction cup 2-1 and a pressure measuring hole clamp base 2-3; in the present embodiment, there are two suction cups 2-1, which are arranged on both sides of the pressure measuring hole clamp base 2-3. Of course, there may be multiple suction cups 2-1, which are arranged on a circle with the pressure measuring hole clamp base 2-3 as the center; when in use, align the pressure measuring hole clamp base 2-3 with the pressure measuring hole, turn on the vacuum pump 1 switch, and the suction cup 2-1 is adsorbed on the surface of the aircraft.

[0015] As a preferred implementation of this embodiment, the suction cup clamp unit 2 also has a pipeline switch 2-2, which is arranged at the air pipeline inlet position of each test point, that is, on the branch pipeline, for controlling the suction cup 2-1 to draw or release air.

[0016] Preferably, a control unit (as shown in the figure) is provided in the vacuum pump; a pressure sensor (as shown in the figure) is provided on the air pipeline of each test point; the control unit is used to monitor the pressure sensor, and then control the opening and closing of the pipeline switch 2-2.

[0017] Connect the suction cup 2-1 to the vacuum pump 1 through the air pipeline 3, align the pressure hole fixture base 2-3 with the pressure hole, turn on the vacuum pump 1 switch, and the suction cup 2-1 will be firmly adsorbed on the surface of the aircraft. Each test point has an independent pipeline switch 2-2, which can control the suction and exhaust of 2-1 separately. Each pressure hole does not affect each other, so each suction cup fixture unit can be installed separately. A vacuum pump 1 can control multiple suction cup fixture units 2, and the vacuum pump 1 has a built-in control unit. When the pressure sensor detects that the pressure of a branch is higher than a certain set threshold, the vacuum switch will be turned on to start the vacuum operation; when it is lower than a certain set threshold, the pipeline switch 2-2 will be closed to stop the vacuum operation.

[0018] The above embodiments are only preferred implementations of the present invention and do not constitute a limitation of the present invention. Any extensions and modifications made by ordinary technicians in this field without departing from the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conformal pressure-test hole suction cup fixture for aircraft that can be adsorbed on a non-smooth surface, comprising a vacuum pump, characterized in that: The vacuum pump is connected to a suction cup fixture unit through an air pipeline; the suction cup fixture unit includes a suction cup and a pressure measuring hole fixture base, and the suction cup is arranged around the pressure measuring hole fixture base; when in use, the pressure measuring hole fixture base is aligned with the pressure measuring hole, the vacuum pump switch is turned on, and the suction cup is adsorbed on the surface of the aircraft.

2. The aircraft conformal pressure measuring hole suction cup fixture that can be adsorbed on a non-smooth surface according to claim 1, characterized in that: There are multiple suction cup clamp units, which are connected to the vacuum pump through air pipelines respectively.

3. The aircraft conformal pressure measuring hole suction cup fixture that can be adsorbed on a non-smooth surface according to claim 1 or 2, characterized in that: The suction cup fixture unit also has a pipeline switch, which is arranged at the air pipeline inlet position of each test point and is used to control the suction and exhaust of the suction cup.

4. The aircraft conformal pressure measuring hole suction cup fixture that can be adsorbed on a non-smooth surface according to claim 1, characterized in that: A control unit is arranged in the vacuum pump; a pressure sensor is arranged on the air pipeline of each test point; the control unit is used to monitor the pressure sensor and then control the opening and closing of the pipeline switch.

5. The aircraft conformal pressure measuring hole suction cup fixture that can be adsorbed on a non-smooth surface according to claim 1, characterized in that: There are multiple suction cups, which are arranged on a circumference with the pressure measuring hole fixture base as the center.

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