Digital measurement device for distance between slide rails of aircraft ejection seats

Abstract

The present invention belongs to the technical field of digital spacing measurement, and proposes a digital measuring device for the spacing of aircraft ejection seat slide rails. The digital measuring device for the spacing of aircraft ejection seat slide rails includes a display part and a structural part; the structural part includes a slider, a clamping mechanism and a laser rangefinder, the laser rangefinder is moved on the slide rail with the help of the slider, and is fixed on the slide rail with the help of the clamping mechanism; the data of the laser rangefinder is transmitted to the display part for display. The digital measuring device for the spacing of aircraft ejection seat slide rails proposed by the present invention is simple and convenient to use and operate, and has accurate measurement, and realizes digital detection of the spacing of seat slide rails. At the same time, it can completely avoid scratching the surface treatment coating of the inner groove of the slide rail, thereby improving efficiency while also ensuring product quality.

Description

Technical Field

[0001] The invention relates to the technical field of digital spacing measurement, and in particular to a digital measuring device for the spacing of slide rails of an ejection seat of an aircraft. Background Art

[0002] During the aircraft assembly process, the spacing of the ejection seat rails must ensure that the dimensions meet the requirements of 176mm-176.5mm, otherwise the ejection seat installation will deviate, affecting the ejection function, thereby reducing the stability of the life support system. The current inspection method is to use a gauge for analog inspection, which is not efficient, and the length of a complete rail is about 1200mm. After the gauge is fully inserted into the rail, it is impossible to observe the fit between the slider on the gauge and the rail, nor can it reflect the actual rail spacing. At the same time, the inner groove of the rail has a special surface treatment, and the slider on the gauge is made of tool steel, which often scratches the inner groove of the rail, affecting the corrosion resistance and wear resistance of the rail. In order to improve the measurement accuracy, ensure that the ejection function is not affected, and avoid scratching the inner groove to affect the corrosion resistance, a digital measuring device is invented to improve measurement accuracy while improving efficiency and avoiding scratches. Summary of the invention

[0003] The purpose of the present invention is to provide a digital measuring device for the distance between the slide rails of an aircraft ejection seat, which realizes digital measurement through a laser rangefinder and a slider clamping mechanism, and directly displays the distance value, thereby realizing accurate measurement of the distance between the slide rails.

[0004] The technical solution of the present invention:

[0005] A digital measuring device for the distance between slide rails of an aircraft ejection seat comprises a structural part and a display part.

[0006] The structural part includes a clamping mechanism, a pulley 3, a baffle 4, a slider 5, a screw 6, a slide 7, a base 8, a bolt 9, a laser rangefinder 10 and a top screw 11; the slider 5 is T-shaped, including a block and a boss; a clamping mechanism is installed on both ends of the block through screws 6; the clamping mechanism includes a left bracket 1, a right bracket 2 and a torsion spring 18; the left bracket 1 is fixed on the block, and it forms a space with two openings on both sides with the upper surface of the block, and an axis is arranged in the space, and a through hole is arranged on the axis; the right bracket 2 includes two vertically connected support rods, the two support rods are opposite to the openings on both sides of the left bracket 1, and the first support rod is provided with a small axis, which penetrates into the through hole on the axis of the left bracket 1; the end of the second support rod is a convex structure for sleeve pulley 3; the torsion spring 18 passes through the axis in the left bracket 1, and the two ends are respectively fixed on the first support rods of the left bracket 1 and the right bracket 2; a slide groove 7 is fixed at the end of the boss, and the base 8 is inserted into the slideway of the slide groove 7, and the laser rangefinder 10 is connected thereon. The baffle 4 is connected to the left bracket 1 and the right bracket 2 via screws 6 ; the top screw 11 is used to fix the position of the base 8 in the slide groove 7 .

[0007] The display part is connected to the laser rangefinder 10 for displaying and processing the numerical values ​​of the laser rangefinder 10. The display part includes a display screen 12, an upper cover 13, a reset button 14, a power switch 15, a charging module 16 and a lower cover 17; the upper cover 13 and the lower cover 17 are screwed together to form a housing of the display part, which is used to load the circuit module and the battery; the display screen 12, the reset button 14, and the power switch 15 are all installed in the card slot of the upper cover 13, and the charging module 16 is installed in the card slot of the lower cover 17; the display screen 12 is used to display the measurement data; the reset button 14 is used as a restart button for repeated measurement; the power switch 15 controls the power switch of the entire device; and the charging module 16 is used to charge the battery in the device.

[0008] The material of the sliding block 5 is a wear-resistant resin material to avoid scratching the slide rail.

[0009] When in use, the slider 5 is fully and tightly fitted with the inner groove of the slide rail under the pressure of the torsion spring 18, and the pulley 3 is in contact with the outer surface of the slide rail; the sliding of the base 8 in the slide rail can avoid the situation where the end of the slide groove cannot be measured after the device is fully extended into the slide groove.

[0010] Beneficial effects of the present invention: The digital measuring device for the distance between the slide rails of an ejection seat of an aircraft proposed in the present invention is simple and convenient to use and operate, and has accurate measurement, thereby realizing digital detection of the distance between the slide rails of the seat and completely avoiding scratching of the surface treatment coating of the inner groove of the slide rail, thereby improving efficiency and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall schematic diagram of the digital measurement device for the distance between the slide rails of the ejection seat of the aircraft;

[0012] Figure 2 This is a schematic diagram of the structure of a digital measurement device for the distance between the slide rails of an aircraft ejection seat;

[0013] Figure 3 This is a schematic diagram of the actual operation of the digital measurement device for the distance between the aircraft ejection seat slides.

[0014] In the figure: 1-left bracket; 2-right bracket; 3-pulley; 4-blocking piece; 5-slider; 6-screw; 7-slide groove; 8-base; 9-bolt; 10-laser rangefinder; 11-top screw; 12-display screen; 13-upper cover; 14-reset button; 15-power switch; 16-charging module; 17-lower cover; 18-torsion spring. DETAILED DESCRIPTION

[0015] The specific actual measurement steps of the aircraft ejection seat slide rail spacing digital measurement device are as follows:

[0016] 1) Press the two right brackets 2, extend the slider 5 into the groove on one side of the aircraft seat slide rail, loosen the right bracket 2, and under the pressure of the torsion spring 18, the slider 5 on the device fits tightly with the aircraft seat slide rail.

[0017] 2) Press the power switch 15, the device screen lights up, the laser rangefinder 10 emits a laser, loosen the top screw 11 to adjust the position of the base 8 in the slide groove 7, so that the laser beam hits the opposite seat slide groove, and tighten the top screw 11 to fix the base 8.

[0018] 3) Push the device to make the entire device slide along the slide rail and observe the real-time value and change range of the display screen. The value of the entire process is not less than 176mm and the maximum value does not exceed 176.5mm, that is, the slide rail spacing meets the requirements.

Claims

1. A digital measuring device for the distance between slide rails of an aircraft ejection seat, characterized in that: The aircraft ejection seat slide rail spacing digital measurement device includes a structural part and a display part; The structural part comprises a clamping mechanism, a pulley (3), a slider (5), a slide groove (7), a base (8) and a laser rangefinder (10); The slider (5) is T-shaped and includes a block and a boss; a clamping mechanism is installed at both ends of the block and is located on both sides of the boss; the clamping mechanism includes a left bracket (1), a right bracket (2) and a torsion spring (18); the left bracket (1) is fixed on the block and forms a space with two openings on both sides with the upper surface of the block, wherein an axis is arranged in the space and a through hole is arranged on the axis; the right bracket (2) includes two vertically connected support rods, the two support rods are opposite to the openings on both sides of the left bracket (1), the first support rod is provided with a small axis, which penetrates into the through hole on the axis of the left bracket (1); the end of the second support rod is a convex structure for sleeve-engaging the pulley (3); the torsion spring (18) passes through the axis in the left bracket (1), and the two ends are respectively fixed on the first support rods of the left bracket (1) and the right bracket (2); a slide groove (7) is fixed at the end of the boss, the base (8) is inserted into the slideway of the slide groove (7), and a laser rangefinder (10) is connected thereto; The display part is connected to the laser rangefinder (10) and is used for displaying and processing the numerical values ​​of the laser rangefinder (10).

2. The digital measuring device for the distance between the aircraft ejection seat rails according to claim 1 is characterized in that: The display part comprises a display screen (12), an upper cover (13), a reset button (14), a power switch (15), a charging module (16) and a lower cover (17); the upper cover (13) and the lower cover (17) are screwed together to form a housing of the display part, in which a circuit module and a battery are loaded; the display screen (12), the reset button (14) and the power switch (15) are all installed in a card slot of the upper cover (13), and the charging module (16) is installed in a card slot of the lower cover (17); the display screen (12) is used to display measurement data; the reset button (14) is used as a restart button for repeated measurement; the power switch (15) controls the power switch of the entire device; and the charging module (16) is used to charge the battery in the device.

3. The digital measuring device for the distance between the slide rails of an ejection seat of an aircraft according to claim 1 or 2, characterized in that: The material of the sliding block (5) is a wear-resistant resin material.

4. The digital measuring device for the distance between the slide rails of an ejection seat of an aircraft according to claim 1 or 2, characterized in that: A clamping mechanism is installed at both ends of the block of the sliding block (5) via screws (6).

5. The digital measuring device for the distance between the slide rails of an ejection seat of an aircraft according to claim 3 is characterized in that: A clamping mechanism is installed at both ends of the block of the sliding block (5) via screws (6).

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