CN215725576U

CN215725576U - Tool for measuring spatial travel

Info

Publication number: CN215725576U
Application number: CN202121965452.5U
Authority: CN
Inventors: 鄂成亮; 张海东; 王尧; 许宏丽
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-01
Anticipated expiration: 2031-08-20

Abstract

The utility model belongs to the technical field of measurement and discloses a tool for measuring a space stroke. Comprises a sucker, a metal hose, a chuck, a ruler barrel, a screw rod, a knob, a bearing, a nut and a pointer; wherein the sucking disc, the metal hose and the chuck form a supporting part of the tool; the measuring part of the tool consists of a ruler barrel, a lead screw, a knob, a bearing, a nut and a pointer; the tool for measuring the space stroke is easy to manufacture, most parts can be directly purchased as finished products, and the assembly is simple. When the device is used, the measuring accuracy is improved, the error is reduced, the operation is simple, the application range is wide, and the lengths of the metal hose and the measuring part can be changed to meet the measuring requirements of more strokes.

Description

Tool for measuring spatial travel

Technical Field

The utility model belongs to the technical field of measurement, relates to measurement of space travel of a pull rod rocker arm of an aircraft lifesaving system, and particularly relates to an inspection and measurement tool.

Background

The stroke of the rocker arm of the lifesaving system in the cabin of the aircraft is the space size, a measuring tool needs to be held by hands when the lifesaving system is measured by a common steel plate ruler and a caliper, the measurement is unstable and is limited by surrounding structures, the space is not opened, and the measurement error is larger.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tool for measuring spatial travel, aiming at overcoming the problems in the prior art, which comprises the following components: as shown in fig. 1 and 2, a tool for measuring spatial travel comprises a suction cup, a metal hose, a chuck, a ruler barrel, a lead screw, a knob, a bearing a, a bearing B, a nut and a pointer; wherein the sucking disc, the metal hose and the chuck form a supporting part of the tool; the measuring part of the tool consists of a ruler barrel, a lead screw, a knob, a bearing A, a bearing B, a nut and a pointer; the sucker is used for adsorbing the supporting part on the surface of a product, the metal hose is similar to a metal hose used by a table lamp, the curvature can be changed at will, the structure of the product can be avoided to adapt to the spatial position of a measured object, and the chuck is used for clamping the ruler barrel in the measuring part; the ruler barrel is a straight barrel, a through groove is formed in the cylindrical surface, and a scale bar is pasted on the through groove and used for reading numerical values; the bearing B and the nut are respectively pressed into two ends of the ruler barrel in an interference fit manner, so that the lead screw is ensured to rotate stably and smoothly; the screw rod drives the nut and the pointer to slide up and down in the groove of the ruler barrel and is used for reading the numerical value of the scale bar on the ruler barrel.

The sucker, the metal hose, the lead screw, the bearing A, the bearing B, the nut and the pointer are all finished products, and the chuck, the ruler barrel and the knob are plastic products designed by a digital-analog method and printed by 3D.

The ruler barrel is a straight barrel with the outer diameter phi 16, the inner diameter phi 10 and the length of 50mm, and a through groove with the length of 4 multiplied by 30 is formed in the cylindrical surface.

The utility model has the advantages that the tool for measuring the space stroke is easy to manufacture, most parts can be directly purchased as finished products, and the assembly is simple. When the device is used, the measuring accuracy is improved, the error is reduced, the operation is simple, the application range is wide, and the lengths of the metal hose and the measuring part can be changed to meet the measuring requirements of more strokes.

Drawings

Fig. 1 is a three-dimensional view of a tool for spatial travel measurement.

Fig. 2 is a cross-sectional view of a measurement portion of an inspection tool.

Fig. 3 is a schematic diagram of the use of the spatial travel measuring tool.

In the figure: 1, a sucker; 2, a metal hose; 3, clamping a head; 4, a ruler barrel; 5, a lead screw; 6, a knob; 7, a bearing A; 8, a bearing B; 9, a nut; 10 pointers.

Detailed Description

1) As shown in fig. 3, the bracket is fixed on the airplane by the suction cup 1 at a proper position.

2) The measuring section cylinder 4 is held by a chuck 3.

3) The metal hose 2 is bent to avoid other structures of the machine body, so that a pointer [10] on the measuring part is aligned to the center of the rotating shaft of the rocker arm to be measured, and the initial value on the ruler cylinder is read.

4) And starting a system to be tested on the product to enable the rocker arm to move to the final position.

5) The knob 6 is rotated, the nut 9 and the pointer 10 are driven by the lead screw 5 to move together, so that the pointer 10 is aligned to the center of the rotating shaft of the rocker arm again, the numerical value of the ruler barrel is read, and the difference of the two numerical values is the stroke of the rocker arm.

Claims

1. The tool for measuring the space stroke is characterized by comprising a sucker (1), a metal hose (2), a chuck (3), a ruler barrel (4), a lead screw (5), a knob (6), a bearing A (7), a bearing B (8), a nut (9) and a pointer (10); wherein the sucking disc (1), the metal hose (2) and the chuck (3) form a supporting part of the tool; the measuring part of the tool consists of a ruler barrel (4), a lead screw (5), a knob (6), a bearing A (7), a bearing B (8), a nut (9) and a pointer (10); the sucker (1) is used for adsorbing the supporting part on the surface of a product, the metal hose (2) can randomly change the curvature to avoid the structure of the product so as to adapt to the spatial position of a measured object, and the chuck (3) is used for clamping the ruler barrel (4) in the measuring part; the ruler barrel (4) is a straight barrel, a through groove is formed in the cylindrical surface, and a scale bar is pasted on the through groove and used for reading numerical values; the bearing B (8) and the nut (9) are respectively pressed into two ends of the ruler barrel in an interference fit manner, so that the lead screw (5) is ensured to rotate stably and smoothly; the screw rod (5) drives the nut (9) and the pointer (10) to slide up and down in the groove of the ruler barrel (4) and is used for reading the numerical value of the scale bar on the ruler barrel (4).

2. The tool for measuring the spatial stroke according to claim 1, wherein the suction cup (1), the metal hose (2), the lead screw (5), the bearing A (7), the bearing B (8), the nut (9) and the pointer (10) are all finished products, and the chuck (3), the ruler barrel (4) and the knob (6) are plastic products with digital-analog design and 3D printing.

3. The tool for measuring the spatial stroke according to the claim 1, wherein the ruler barrel (4) is a straight barrel with the outer diameter phi 16, the inner diameter phi 10 and the length of 50mm, and a cylindrical surface is provided with a through groove of 4 x 30.