142results about How to "Small adjustment range" patented technology

The invention provides a liquid crystal module testing device. The liquid crystal module testing device comprises a lightening module, a flicker degree acquisition module, a voltage module and a control module, wherein the lightening module is used for being connected with a liquid crystal module to be tested, lightening the liquid crystal module, and providing a test picture for the liquid crystal module, the flicker degree acquisition module is used for acquiring the flicker degree of the liquid crystal module, the voltage module is used for being connected with the liquid crystal module to be tested and supplying voltage to the liquid crystal module, and the control module is connected with the flicker degree acquisition module and the voltage module respectively and used for controlling output voltage of the voltage module and receiving the flicker degree of the liquid crystal module, acquired by the flicker degree acquisition module, under corresponding voltage. According to the liquid crystal module testing device, the voltage of the liquid crystal module to be tested is controlled, the flicker degree acquisition module is used for acquiring the flicker degree of the liquid crystal module, and the flicker degree acquisition and voltage control are achieved through intelligent control, so that the best required set voltage value corresponding to the best flicker value of the liquid crystal module can be accurately judged.

A webbing adjustment device has a cover, a frame, a slider, and a guiding ring member. The frame is up and down moveably disposed in the cover. The slider is located in the cover, is moveably disposed in a body of the frame, and has a through slot formed through the slider. Webbing inserted through the through slot is locked or unlocked by a relative motion between the frame and the slider. The guiding ring member is detachably disposed on the cover, and has a guiding ring and a positioning element connected to the guiding ring. The webbing is inserted through the guiding ring. The cover is detachably hung on the guiding ring. The webbing adjustment device can lock the webbing automatically by the tension of the webbing.

An adjusting structure of a refrigerator storage rack comprises a door body and the storage rack. The storage rack is arranged on the door body. Two adjusting mechanisms are symmetrically arranged on the two sides of the inner wall of the door body correspondingly. Each adjusting mechanism is provided with a sawtooth structure with a plurality of tooth parts. An adjusting hook is movably arranged on the storage rack and acts on or is separated from the tooth parts. In the positioned state, the adjusting hook acts on the one or more tooth parts; and in the adjusting process, the adjusting hook is separated from the tooth parts, and the storage rack slides relative to the door body. By arranging the sawtooth structure on the door body and arranging the adjusting hook on the storage rack, the adjusting hook is buckled with the tooth parts on the sawtooth structure, vertical adjusting and positioning of the storage rack are achieved, the adjusting amplitude of the storage rank is small, the number of adjusting levels is large, adjustment can be conducted precisely according to requirements, the adaptability is high, and the space area of the door body is sufficiently and effectively utilized; and in the adjusting process, an operator just needs to operate the adjusting hook, vertical moving and adjustment of the storage rack can be achieved easily and conveniently, and the storage rack does not need to be taken out.

The invention relates to a method and stretch-bending straightener for straightening metal strips (1) by stretch-bending, comprising a plurality of straightening rolls (5a, 6a, 7a, 8a) which are arranged behind one another in the strip flow direction (D) and spaced from one another in the strip flow direction (D), wherein the strip (1) subject to tensile stress below the limit of elasticity is alternately bent around the straightening rolls (5a, 6a, 7a, 8a), undergoing plastic elongation, wherein a deflecting roll (5b, 6b, 7b) is arranged upstream of one or more straightening rolls (5a, 6a, 7a), respectively, wherein said straightening rolls can be adjusted relative to the strip (1) and wherein said deflecting roll has a larger diameter than the respective downstream straightening roll. Said method and said system are characterized in that, in order to vary the immersion depth, the straightening rolls (5a, 6a, 7a) can be adjusted relative to the associated deflecting roll (5b, 6b, 7a) such that the free strip length (F) between the run-off point (9) of the strip (1) from the deflecting roll to the run-on point (10) of the strip (1) onto the associated straightening roll does not exceed a predefined maximum value, above which longitudinal undulations of the strip form. The system is preferably designed such that, as the immersion depth and / or the angle of contact are varied, the free strip length never exceeds the maximum value over the entire adjusting range.