A shock absorbing damper and method of use thereof

By filling the steel structure with lead material, a shock-absorbing damper is developed. The sliding rod drives the lead material to be squeezed and rubbed in the wavy arc structure to generate heat energy, which solves the problems of complex structure and high cost of existing dampers and achieves simple installation and efficient shock absorption.

CN116677092BActive Publication Date: 2026-02-24SHANGHAI INERTIA SHOCK ABSORBER CO LTD
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Patent Information

Application Number
CN202310694542.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-13
Publication Date
2026-02-24
Estimated Expiration
2043-06-13

AI Technical Summary

Technical Problem

Existing shock absorber dampers have complex structures, are difficult to maintain, are costly, and affect the shock absorption effect.

Method used

It adopts a hollow steel structure filled with lead material. By using sliding rods to drive the lead material to be squeezed and rubbed in the wavy arc structure, plastic deformation and heat energy are generated to achieve the shock absorption effect.

Benefits of technology

It achieves a simple structure, convenient installation, low cost, and effectively reduces noise and vibration, improving shock absorption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a damping damper and an application method thereof, wherein the damping damper comprises a steel material in a cylindrical structure, and a hollow structure is adopted in the steel material; the hollow structure of the steel material comprises a storage area and a pressing area; one end of the steel material is connected with the outside through a fixed anchor outside the storage area; the pressing area adopts a plurality of wave-shaped arc structures which are connected with each other, the wave-shaped arc structures are arranged in the pressing area in a ring shape, a sliding rod is arranged in the wave-shaped arc structure, one end of the sliding rod is clamped on the storage area, and the other end of the sliding rod is arranged outside the steel material and connected with an external structure; two cylindrical discs which are symmetrically arranged and have the same structure are arranged on the sliding rod, and lead material is filled between the two cylindrical discs in the wave-shaped arc structure. The application fills lead material in a dense manner in a closed space formed by the sliding rod and the steel material, the lead material is used as damping medium, noise and vibration are reduced, and damping force and response characteristics are controlled.
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Description

Technical Field

[0001] This invention relates to the technical field of shock absorbers, and in particular to a shock absorber that utilizes the energy dissipation characteristics of lead material deformation and its application method. Background Technology

[0002] Earthquakes, a dangerous natural disaster, can cause buildings to collapse, roads and bridges to be damaged, and water, electricity, and communication systems to be disrupted, resulting in injuries and deaths, disrupting transportation, and causing huge economic losses. Furthermore, aftershocks and geological hazards following an earthquake can make rescue and reconstruction efforts even more difficult and dangerous. Therefore, it is essential to take preventative and response measures in areas such as construction and bridges to minimize disaster losses.

[0003] A damper is a structural control device that reduces the vibration of structures such as buildings and bridges during an earthquake, thereby reducing earthquake damage. Specifically, when an earthquake occurs, the damper uses built-in mechanisms to convert the structure's vibrational energy into heat or other forms of energy, thus reducing the amplitude and duration of the vibration. This reduces the risk of structural damage and collapse, protecting people's lives and property.

[0004] Since the 1970s, people have gradually begun to use vibration reduction technology in structural engineering such as buildings, bridges, and railways. Its development has been very rapid. Currently, some vibration dampers used in buildings, bridges, and other structures have the disadvantage of complex structure. During use, due to the complex composition of parts, they are difficult to maintain, have high costs, and are prone to damage, which affects the vibration reduction effect. Summary of the Invention

[0005] The purpose of this invention is to provide a shock absorber that uses the compression and collision of steel and lead materials to cause plastic deformation of the lead and generate some heat energy, thereby offsetting part of the energy and achieving a shock absorption effect. It is simple in structure, easy to install, cost-effective, and pollution-free.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shock absorber includes a cylindrical steel structure with a hollow interior. The hollow steel structure includes a retention area and a compression area. One end of the steel is located outside the retention area and connected to the outside via a fixed anchor. The compression area employs multiple interconnected wavy arc structures arranged in a ring within the compression area. A sliding rod is inserted within each wavy arc structure, with one end of the sliding rod engaged with the retention area and the other end located outside the steel and connected to an external structure. Two symmetrically arranged, identical cylindrical discs are inserted through the sliding rod, and lead material is filled between the two cylindrical discs within the wavy arc structure.

[0008] Preferably, the sliding rod is a slender cylindrical rod, one end of which is engaged with one end of the retention area by a limiting plate, and the other end of which is disposed outside the steel and connected to the external structure.

[0009] Preferably, the two ends of the wavy arc structure are respectively provided with straight segments, the diameter of the straight segments is slightly larger than the diameter of the two cylindrical disks, and the two cylindrical disks are respectively movably located within the straight segments on the wavy arc structure.

[0010] Preferably, lead material is densely filled between the two cylindrical disks within the wavy arc structure.

[0011] This invention also provides an application method for a shock absorber damper, the method being as follows: one end of the sliding rod is connected to an external structure. When the external structure is subjected to an external force, the external force acts on the sliding rod, causing the sliding rod to undergo relative displacement, which in turn causes the lead material to move. At this time, the sliding rod will move left and right along with the lead material. Since the lead material is densely filled between two cylindrical disks within the wavy arc structure of the steel, the lead material will be squeezed and rubbed against the protrusions in the wavy arc structure inside the steel during the movement of the sliding rod. This causes the lead material to undergo plastic deformation according to the wavy arc structure inside the steel and generate heat, thereby achieving the purpose of energy dissipation and shock absorption.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention involves incorporating a sliding rod within a steel body, and densely filling the enclosed space formed by the two with lead material. The lead material acts as a damping medium, which can more effectively reduce vibration and noise compared to traditional damping media. This invention also allows for better control of the damping force and adjustment of its response characteristics. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a shock absorber damper proposed in this invention;

[0015] Figure 2 This is a cross-sectional structural diagram of a shock absorber damper proposed in this invention;

[0016] Figure 3 This is a schematic diagram of the sliding rod in a shock absorber proposed in this invention.

[0017] The serial numbers in the diagram are as follows:

[0018] 1. Steel; 2. Lead; 3. Sliding rod; 4. Fixed anchor; 5. Limiting plate; 6. Cylindrical plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1 to 3 As shown, the present invention provides a shock absorber damper, comprising a steel material 1 with a smooth and regular cylindrical outer contour structure. The steel material 1 has a hollow structure inside, with both ends of the hollow structure being regular cylindrical, and the whole structure is annular. The hollow structure includes a retention area and a compression area. One end of the steel material 1 is located outside the retention area and is connected to the outside through a fixed anchor 4, which plays a role in fixing the overall structure.

[0021] The extrusion zone employs multiple interconnected regular or irregular wavy arc structures, arranged in a ring within the extrusion zone. Straight segments are located at both ends of each wavy arc structure. A sliding rod 3 is inserted within the wavy arc structure, positioned at the center of the extrusion zone. One end of the sliding rod 3 is engaged with the retention area, while the other end connects to the external structure outside the steel material 1. Two symmetrically arranged, identical cylindrical disks 6 are inserted through the sliding rod 3. Lead material 2 is densely filled in the space formed between the two cylindrical disks 6 and the wavy arc structure. When the sliding rod 3 moves, it causes the lead material 2 to be compressed and rubbed against the steel material 1. Under pressure, the sliding rod 3 can slide left or right, further compressing and rubbing the lead material 2 against the steel 1, thus achieving energy dissipation.

[0022] The diameters of the two cylindrical disks 6 are slightly smaller than the diameter of the straight segment, and the two cylindrical disks 6 are respectively located within the straight segment of the wavy arc structure. The straight segments at both ends of the wavy arc structure are the displacement distance of the sliding rod 3. When the sliding rod 3 is displaced within the straight segments at both ends of the wavy arc structure, the sliding rod 3 compresses the lead material 2 within the wavy arc structure through its two cylindrical disks 6.

[0023] Furthermore, the sliding rod 3 provided by the present invention is a slender cylindrical rod. One end of the cylindrical rod is clamped to one end of the retention area by a limiting plate 5, and the other end of the cylindrical rod is set outside the steel 1 and connected to the external structure. Two cylindrical plates 6 are symmetrically arranged on the cylindrical rod.

[0024] Furthermore, the two cylindrical disks 6 within the wavy arc structure provided by the present invention are filled with lead material 2 in a dense manner.

[0025] The working principle of this invention is as follows:

[0026] One end of the sliding rod 3 is connected to the external structure. When the external structure is subjected to external force, the external force acts on the sliding rod 3, causing the sliding rod 3 to undergo relative displacement, which in turn causes the lead material 2 to move. At this time, the sliding rod 3 will move the lead material 2 to the left and right. Since the lead material 2 is densely filled between the two cylindrical disks in the wavy arc structure of the steel 1, the lead material 2 will be squeezed and rubbed against the protrusions in the wavy arc structure inside the steel 1 during the movement of the sliding rod 3. This causes the lead material 2 to undergo plastic deformation according to the wavy arc structure inside the steel 1 and generate heat, thereby achieving the purpose of energy dissipation and vibration reduction.

[0027] The expression for the heat energy generated above is:

[0028] Q = cmΔt

[0029] Heat Q: Joules (J)

[0030] Specific heat capacity C: Joules per kilogram at ℃ (J / kg℃)

[0031] Mass m: kilograms (kg)

[0032] Temperature rise (or fall) Δt: degrees Celsius (°C)

[0033] Lead has a specific heat capacity of 130 J / kg℃, and the quality of lead can be adjusted according to the actual needs of the scenario.

[0034] The aforementioned external force will do work on the sliding rod 3 and the lead material 2, expressed as:

[0035] W=FScosα

[0036] Work W: Joules (J)

[0037] External force F: Newtons (N)

[0038] Displacement S: meters (m)

[0039] In this model, the deflection angle cosα is approximately considered to be 1, while the displacement S determines the upper limit of the offset energy in this invention. Therefore, in actual production applications, it should be determined according to the actual situation to achieve the best results.

[0040] This invention involves incorporating a sliding rod within a steel body, with the resulting enclosed space densely filled with lead material. The lead material acts as a damping medium, providing more effective vibration reduction than traditional damping media and decreasing noise and vibration. This invention also allows for better control of the damping force and adjustment of its response characteristics. It is suitable for various applications, such as automotive, construction, and robotics.

[0041] In this utility model description, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In this utility model description, "multiple" means two or more, unless otherwise explicitly specified.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this utility model, should be covered within the scope of protection of this utility model.

Claims

1. A shock absorber, comprising a cylindrical steel structure (1), characterized in that, The steel (1) has a hollow structure; the hollow structure of the steel (1) includes a retention area and an extrusion area; one end of the steel (1) is located outside the retention area and is connected to the outside through a fixed anchor (4); the extrusion area adopts multiple interconnected wavy arc structures, the wavy arc structures are arranged in a ring in the extrusion area, a sliding rod (3) is inserted in the wavy arc structure, one end of the sliding rod (3) is engaged in the retention area, and the other end of the sliding rod (3) is located outside the steel (1) and connected to the external structure; two symmetrically arranged and identical cylindrical disks (6) are inserted on the sliding rod (3), and lead material (2) is filled between the two cylindrical disks (6) in the wavy arc structure.

2. The shock absorber damper according to claim 1, characterized in that, The sliding rod (3) is a slender cylindrical rod. One end of the cylindrical rod is clamped to one end of the retention area by a limiting plate (5), and the other end of the cylindrical rod is set outside the steel (1) and connected to the external structure.

3. The shock absorber damper according to claim 1, characterized in that, The two ends of the wavy arc structure are respectively provided with straight segments. The diameter of the straight segments is slightly larger than the diameter of the two cylindrical disks (6). The two cylindrical disks (6) are respectively located within the straight segments on the wavy arc structure.

4. A shock absorber damper according to claim 1, characterized in that, The two cylindrical disks (6) within the wavy arc structure are filled with lead material (2) in a dense manner.

5. A method for applying the shock absorber as described in claim 1, characterized in that, The method is as follows: One end of the sliding rod (3) is connected to the external structure. When the external structure is subjected to external force, the external force acts on the sliding rod (3), and the sliding rod (3) generates relative displacement, which drives the lead material (2) to move together. At this time, the sliding rod (3) will move left and right along with the lead material (2). Since the lead material (2) is filled in a dense manner between the two cylindrical disks in the wavy arc structure of the steel (1), the lead material (2) will be squeezed and rubbed against the protrusions in the wavy arc structure inside the steel (1) during the movement of the sliding rod (3), so that the lead material (2) will undergo plastic deformation and generate heat according to the wavy arc structure inside the steel (1), thereby achieving the purpose of energy dissipation and vibration reduction.

Citation Information

Patent Citations

  • Novel squeezing damper device

    CN104153481A

  • Extrusion and energy dissipation damper with pin rolls connected to bidirectional lead on two ends

    CN107237422A

  • Is multidirectional consuming excessive quantities of energy and resources from double -deck extrusion type of shape memory alloy that restores to throne plumbous attenuator

    CN205976049U