Combined shear type mechanism
A technology of scissor mechanism and power mechanism, which is applied in the direction of instruments and instrument parts, etc., can solve the problems of restricting wider application, low load capacity, prone to distortion, etc., and achieve large expansion ratio and high load capacity , the effect of increased rigidity and strength
Active Publication Date: 2015-03-25
JIANGSU SHUANGXIN GASOLINEEUM MACHINERY
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Problems solved by technology
The main disadvantage of most scissor mechanisms is that under the action of multi-directional force, the strength and rigidity of the structure in the direction of the force are not enough to bear the load-bearing effect of the force, it is prone to distortion, and the safety is not high
In addition, the load capacity of the current scissor mechanism is not high, and these weaknesses limit its wider application
Method used
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[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0030] A composite scissor mechanism, comprising a telescopic arm 1, the telescopic arm 1 is hingedly connected by a connecting rod using a scissor structure, and the telescopic arm 1 is provided with two sets, namely a first arm 11 and a second arm 12;
[0031] The middle part of the connecting rod of the first arm 11 is provided with a hinge shaft 13, and the hinge shaft 13 includes a mounting part 131 and a hinge shaft 132, and the mounting part 131 is mounted on the first arm 11 through the hinge shaft 132 the middle of the connecting rod;
[0032] The head-to-tail hinges of the connecting rods on either side of the second arm 12 are then hinged to the mounting member 131;
[0033] The stretching directions of the first arm 11 and the second arm 12 are consistent.
[0034] The telescopic arm 1...
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A combined shear type mechanism comprises retractable arms which are each formed by connecting connection rods in a hinged mode through a shear type structure. The combined shear type mechanism is characterized in that the retractable arms are two in number and are the first arm and the second arm; the middles of the connection rods of the first arm are each provided with a hinge shaft, each hinge shaft comprises an installation part and a hinge shaft body, and each installation part is installed in the middle of the corresponding connection rod of the first arm through the corresponding hinge shaft body; the head-to-tail hinged positions of the connection rods on any side of the second arm are hinged to the installation parts; the first arm and the second arm have the same extending and retracting direction. The combined shear type mechanism is high in load-carrying capacity, large in contraction ratio, capable of bearing force in multiple directions, and good in rigidity, strength and safety.
Description
technical field [0001] The invention relates to the field of scissor mechanisms, in particular to a composite scissor mechanism. Background technique [0002] The scissor mechanism is currently widely used and developed, such as foldable tents, retractable door curtains, elevators, foldable desk lamps, etc. It is characterized by a large expansion ratio, can be extended for a long distance and a large span, and when it shrinks, it occupies a small space, so it is used in many industries. What adopt in the application of most scissor mechanism at present is single-sided scissor mechanism or double parallel scissor mechanism, what adopt as door curtain is single-sided scissor mechanism, what elevator adopts is double parallel scissor mechanism. The main disadvantage of most scissor mechanisms is that under the action of multi-directional force, the strength and rigidity of the structure in the direction of the force are not enough to bear the load-bearing effect of the force,...
Claims
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Inventor 唐建柳朱培祺刘仁昌刘咏平岑永炽
Owner JIANGSU SHUANGXIN GASOLINEEUM MACHINERY