Device for testing tensile property of door and window handles for transmission purpose

Abstract

The invention relates to a device for testing the tensile property of door and window handles for transmission purpose. The device comprises a handle length measuring part, a force application position adjusting part, a force applying part and a handle position measuring part. A handle rotating shaft and a vertical center line of a force application cross beam are adjusted to be coaxial through aclamp. The handle length measuring part is installed at the vertical center position of the force application cross beam through a bolt. The distance between the axis of a handle and the outermost endof the handle is measured. The force application position adjusting part is arranged on a handle fixing base. The handle is accurately adjusted at the 2 / 3 length of the force application position ofthe handle. The force applying part is arranged at the vertical center position of the force application cross beam through a bolt. A specified static load is applied to the handle. The handle position measuring part is arranged parallel to the force application cross beam and is fixed on the plane sliding groove of the base. The e height position deviation of the outermost end of the handle is measured. According to the invention, the application load and the handle displacement deviation measurement are prevented from being carried out on different test devices. Therefore, the position errorof multiple times of clamping operations on the handle is eliminated, and the testing accuracy is guaranteed.

Description

technical field [0001] The invention relates to a device for testing the tensile performance of a door and window handle for transmission. Background technique [0002] The door and window handle for transmission has been widely used in the construction industry. It is used in conjunction with the transmission locker and multi-point locker in the door and window to realize the locking and unlocking of the door and window lock points. According to the requirements of the relevant test standards for transmission door and window handles, when testing the tensile performance of the transmission door and window handle strength, it is necessary to fix the base of the transmission door and window handle on a horizontal platform, and turn the handle to the same The length and direction of the handle base are consistent. At the position 2 / 3 away from the handle shaft on the center line of the handle, apply a pulling force of 600N parallel to the handle shaft and keep it for 60s. Afte...

AI Technical Summary

Problems solved by technology

If the entire test process is not carried out on the same equipment, the measurement of the initial position of the outermost end of the handle before the application of the tensile load and the measurement of the maximum permanent deformation displacement after the application of the load need to be clamped twice, resulting in There is a position error, this error is a systematic error

Images