Unidirectional damping gas spring
A one-way damping and gas spring technology, which is applied in the field of gas springs, can solve the problems that the gas spring cannot meet the use requirements and the output damping force of the gas spring is large, and achieve the effect of simple and reliable structure and stable one-way damping force.
Active Publication Date: 2016-11-16
QINGAN GRP
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Problems solved by technology
When faced with the following working conditions, for example, when an emergency door needs a large damping force from the gas spring when it is falling, but no damping force is needed when it is lifted, the existing gas spring cannot meet the requirements
Method used
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Embodiment Construction
[0017] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0018] see figure 1 , the gas spring of one-way damping type of the present invention comprises cylinder block, piston rod, oil through sheet, piston, movable gasket. Wherein, the piston is arranged inside the hollow cylinder body and the cylinder body part is divided into a rod chamber and a rodless chamber. The rodless cavity and the rod cavity of the cylinder body are sealed with hydraulic oil. The oil-through plate and movable gasket are arranged on one side of the piston, and are sleeved on one end of the piston rod. Among them, the movable gasket acts as an opening and closing valve to open and close the oil passage of the rod chamber and the rodless chamber, forming a one-way damping hole The form of the gas spring has a one-way damping effect.
[0019] The piston rod is set in the rod cavity of the cylinder body, one end passes through the end of t...
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The invention belongs to gas spring technologies, and particularly relates to a unidirectional damping gas spring. The unidirectional damping gas spring comprises a cylinder body, a piston rod, an oil passing piece, a piston and a movable gasket, wherein the piston is arranged inside the hollow cylinder body and divides the interior of the cylinder body into a rod cavity and a rodless cavity; the oil passing piece and the movable gasket are arranged on one side of the piston; the piston rod is arranged inside the rod cavity of the cylinder body; one end of the piston rod penetrates through the end part of the cylinder body; the other end of the piston rod penetrates through the oil passing piece and the movable gasket to be connected with the piston; the diameter of the piston is smaller than the diameter of the end part of the cylinder body; and an annular seam is formed between the piston and the end part of the cylinder body. According to the damping gas spring, bidirectional damping is changed into unidirectional damping, the floating piston is added, buffer and oil supplementation functions are achieved, the structure is simple and reliable, and stable unidirectional damping force is output.
Description
technical field [0001] The invention belongs to the gas spring technology, in particular to a one-way damping type gas spring. Background technique [0002] The existing damping type gas spring mainly realizes the damping force through throttling of the damping hole, and the output damping force of the gas spring is the same when the piston rod is extended or retracted. When faced with the following working conditions, for example, when an emergency door needs a large damping force from the gas spring when it is falling, but no damping force is needed when it is lifted, the existing gas spring cannot meet the usage requirements. Contents of the invention [0003] The object of the present invention is to provide a one-way damping gas spring. [0004] The technical solution of the present invention: a gas spring of one-way damping type, which includes a cylinder body, a piston rod, an oil passage, a piston, and a movable gasket, wherein the piston is arranged inside the ho...
Claims
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IPC IPC(8): F16F9/06F16F9/32F16F9/36
CPCF16F9/061F16F9/3235F16F9/362F16F2222/126
Inventor 智文静李建仁刘冬平
Owner QINGAN GRP