Double-layer variable damper

Abstract

The utility model relates to the technical field of dampers, in particular to a double-layer variable damper which comprises an outer shell, hydraulic oil is arranged in the outer shell, an inner shell is fixedly connected in the outer shell, and the inner shell abuts against the position between the bottom and the top of the outer shell and is connected with the outer shell in a sealed mode. A plurality of liquid passing holes are formed in the side face of the inner shell, a piston ring is connected into the inner shell in a sliding mode, a piston rod is arranged at the top of the piston ring, and the end, away from the piston ring, of the piston rod penetrates out of the outer shell. The hydraulic oil, the inner shell, the piston ring and other components are integrated in the outer shell, and the highly integrated damping function is achieved. The damping characteristic can be flexibly regulated and controlled through the design of the liquid passing holes in the inner shell, and different requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to damper technical field, specifically point to a double -deck variable damper. BACKGROUND

[0002] In the field of mechanical engineering and automotive engineering, dampers are widely used to absorb and reduce vibration and impact, to improve the stability and service life of equipment. The traditional damper design can only provide fixed damping effect, and cannot adapt to the demand change under different working conditions.

[0003] Therefore, it is necessary to develop a double -deck variable damper to solve the above problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology, and a double -deck variable damper is provided.

[0005] In order to achieve the above purpose, the utility model provides a double -deck variable damper, which comprises an outer shell, a hydraulic oil is arranged in the outer shell, an inner shell is fixedly connected in the inner shell, the inner shell is abutted between the bottom and the top of the outer shell and is in sealed connection with the outer shell, a plurality of liquid passing holes are arranged on the side surface of the inner shell, a piston ring is slidably connected in the inner shell, a piston rod is arranged on the top of the piston ring, and the end of the piston rod away from the piston ring is arranged out of the outer shell.

[0006] Further, the liquid passing holes are arranged in vertical direction along the outer wall of the inner shell.

[0007] Further, the hydraulic oil fills the inner part of the outer shell.

[0008] Further, a rubber sealing ring is arranged between the outer shell and the piston rod.

[0009] The utility model has the advantages that the utility model provides a double -deck variable damper, by integrating hydraulic oil, inner shell, piston ring and piston rod and other key components in a compact outer shell, the high integration of damping function is realized; a plurality of liquid passing holes arranged on the inner shell allow hydraulic oil to pass when the piston ring moves, the size and distribution of these holes can affect the size of damping force, by adjusting the number, size and arrangement of liquid passing holes, the damping characteristics of the damper can be flexibly controlled, so as to adapt to different working conditions and requirements. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a perspective view of the double -deck variable damper of the utility model;

[0011] Figure 2 It is a sectional view of the double -deck variable damper of the utility model.

[0012] As shown in the figure: 1, the outer shell; 2, the piston rod; 3, the piston ring; 4, the inner shell; 401, the liquid passage. DETAILED DESCRIPTION

[0013] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0014] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0015] In the description of the embodiments of the utility model, if a certain feature is referred to as "set", "fixed", "connected", "installed" on another feature, it can be directly set, fixed, connected or installed on another feature, or indirectly set, fixed, connected or installed on another feature.

[0016] In the description of the embodiments of the utility model, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, and if "greater than", "less than", "more than" is involved, it should be understood as not including the number, if "and above", "and below", "and within" are involved, it should be understood as including the number. If "first" and "second" are involved, it should be understood that they are used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0017] The utility model will be further described in detail below with reference to the drawings.

[0018] In combination with the drawings Figure 1 to the drawings Figure 2As shown, the embodiment provides a double-layer variable damper, comprising an outer shell 1, the outer shell 1 is provided with hydraulic oil, the inner shell 4 is fixedly connected in the outer shell 1, the inner shell 4 is abutted between the bottom and the top of the outer shell 1 and is in sealed connection with the outer shell 1, a plurality of liquid passing holes 401 are arranged on the side of the inner shell 4, the piston ring 3 is slidably connected in the inner shell 4, the piston rod 2 is arranged on the top of the piston ring 3, and the end of the piston rod 2 away from the piston ring 3 penetrates out of the outer shell 1.

[0019] The accompanying drawings are referred to in connection with the description of embodiments of the application. Figure 2 As shown, the liquid passing holes 401 are arranged in the vertical direction of the outer wall of the inner shell 4.

[0020] Further, the hydraulic oil fills the inside of the outer shell 1.

[0021] Further, the rubber sealing ring is arranged between the outer shell 1 and the piston rod 2.

[0022] The working principle of the utility model is as follows: when the damper is subjected to external force, the piston rod 2 drives the piston ring 3 to slide up and down in the inner shell 4. Since the liquid passing holes 401 are uniformly arranged on the inner shell 4, and the hydraulic oil fills the inside of the outer shell 1, when the piston ring 3 slides in the inner shell 4, the hydraulic oil is squeezed to flow in the liquid passing holes 401, when the piston ring 3 moves downward, the hydraulic oil flows out from the liquid passing holes 401 below the piston ring 3 and then flows into the liquid passing holes 401 above the piston ring 3, and the hydraulic oil flowing in the liquid passing holes 401 generates viscous resistance.

[0023] The utility model provides a double-layer variable damper, by integrating hydraulic oil, inner shell 4, piston ring 3 and piston rod 2 and other key components in a compact outer shell 1, the high integration of the damping function is realized, a plurality of liquid passing holes 401 are arranged on the inner shell 4 and allow the hydraulic oil to pass when the piston ring 3 moves, the size and distribution of these holes can affect the size of the damping force, by adjusting the number, size and arrangement of the liquid passing holes 401, the damping characteristics of the damper can be flexibly controlled, so as to adapt to different working conditions and requirements.

[0024] The utility model and its implementation mode are described above, and the description is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, without creative design, similar structure modes and embodiments of the technical scheme are obtained, which should belong to the protection scope of the utility model.

Claims

1. A double-layer variable damper, characterized in that: The device includes an outer shell containing hydraulic oil. An inner shell is fixedly connected inside the outer shell, and the inner shell abuts against the bottom and top of the outer shell and is sealed to the outer shell. The inner shell has several fluid passage holes on its side. A piston ring is slidably connected inside the inner shell. A piston rod is provided on the top of the piston ring, and the end of the piston rod away from the piston ring extends out of the outer shell.

2. The double-layer variable damper according to claim 1, characterized in that: The liquid passage holes are arranged in a uniform array along the vertical direction of the outer wall of the inner shell.

3. The double-layer variable damper according to claim 1, characterized in that: The hydraulic oil fills the interior of the housing.

4. The double-layer variable damper according to claim 1, characterized in that: A rubber sealing ring is provided between the outer casing and the piston rod.

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