Spring vibration reduction device suitable for vibration reduction of car bottom

By designing a spring vibration damping device suitable for the elevator car bottom, using the spring bottom support and top support to resist lateral forces, and combining anti-loosening buckles and bolt connections, the problems of insufficient strength, poor stability and temperature influence of rubber vibration damping pads in the elevator car bottom structure are solved, achieving efficient low-frequency vibration damping and stable vibration damping effect.

CN224062245UActive Publication Date: 2026-03-31SHANDONG FUJI ZHIYU ELEVATOR +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing rubber vibration damping pads used in elevator car bottom structures suffer from problems such as insufficient strength and stability, uneven material properties, small compressibility, and performance affected by temperature changes, resulting in low and unstable vibration damping efficiency.

Method used

A spring vibration damping device was designed, comprising a base plate welded component, a top plate welded component, a damping spring, an anti-detachment buckle, and an anti-detachment bolt. The design of the spring base support and top support resists lateral forces, the connection of the anti-detachment buckle and anti-detachment bolt ensures the stability of the device, and the compressibility of the spring improves the low-frequency vibration damping effect.

Benefits of technology

It improves the safety and stability of vibration damping devices, extends their service life, enhances low-frequency vibration damping efficiency, and its performance is unaffected by temperature changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model designs a spring vibration reduction device suitable for vibration reduction of a car bottom, which is mainly used for reducing transmission of vibration of an elevator structure to a car floor. The spring damping device comprises a bottom plate welding piece, a spring bottom plate, a spring bottom support, a top plate welding piece, a spring top plate, a spring top support, a damping spring, an anti-falling buckle and an anti-falling bolt. The spring damping device has the advantages that the spring damping device is large in compressible amount, low in inherent frequency and high in low-frequency damping efficiency; (2) the temperature change does not influence the performance of the spring damping device; (3) the damper spring is provided with a guide structure, so that the lateral force impact can be resisted, and the damper spring can be prevented from being compressed; the spring damping device is provided with an anti-disengaging structure, and the spring is prevented from disengaging from the device under the emergency working condition. According to the utility model, the transmission of elevator structure vibration to the car floor can be effectively reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of elevator equipment technology, and in particular relates to a spring vibration damping device suitable for car bottom vibration reduction. Background Technology

[0002] With societal development, high-rise buildings are increasingly common, leading to a wider demand for elevators. Therefore, excellent elevator performance has become a crucial benchmark for evaluating elevator design standards and a company's brand value. Currently, vibration damping in elevator car bottom structures primarily relies on rubber damping pads. However, rubber damping pads have several drawbacks in structural design and material performance, such as: ① The strength and stability of rubber damping pads cannot be guaranteed under tension and lateral stress; ② During vulcanization, rubber materials exhibit significant differences in local density and hardness, resulting in nonlinear material properties; ③ Rubber damping pads have low compressibility, resulting in inferior low-frequency vibration damping performance compared to springs, and their performance is affected by temperature changes. To address these shortcomings and improve damping efficiency, this invention designs a spring damping device suitable for car bottom vibration damping. This device not only improves damping efficiency but also ensures the safety and stability of the overall structure. Utility Model Content

[0003] To address the above problems, this utility model proposes and designs a spring vibration damping device suitable for car floor vibration reduction.

[0004] The present invention adopts the following technical solution:

[0005] A spring-loaded vibration damping device suitable for car floor vibration reduction is characterized by comprising a bottom plate welded component, a top plate welded component, a damping spring, anti-detachment clips, and anti-detachment bolts. The damping springs are respectively inserted into spring base supports in the bottom plate welded component. Two anti-detachment clips are respectively connected to tapped holes on the spring top plate in the top plate welded component. The integral structure formed by the top plate welded component and the anti-detachment clips is engaged with the integral structure formed by the bottom plate welded component and the damping spring through corresponding spring base supports and spring top supports. The spring top supports should be positioned between the spring base supports and the damping springs. Two anti-detachment bolts pass through the two anti-detachment clips and are connected to tapped holes on the spring base plate in the bottom plate welded component. Further, the bottom plate welded component includes a spring base plate and a spring base support, with the spring base support welded to the spring base plate.

[0006] Furthermore, the base plate welding component includes a spring base plate and a spring base support, wherein the spring base support is welded to the spring base plate.

[0007] Furthermore, the top plate welded component includes a spring top plate and a spring top support, wherein the spring top support is welded to the spring top plate.

[0008] Furthermore, the dimensions of the spring base plate and the number and size of the spring base support holes are determined by the bracket structure and vibration reduction principle.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0010] 1. The design of the spring bottom support and spring top support in this utility model not only serves as a guide for the spring, but also resists the impact of lateral forces and prevents the damping spring from losing its damping effect when compressed, thus extending the service life of the device.

[0011] 2. The design of the anti-detachment buckle and anti-detachment bolt in this utility model can not only prevent the vibration damping device from detaching, but also connect the entire device into one unit, while avoiding the compression of the vibration damping spring, thus improving the safety and stability of the vibration damping device.

[0012] 3. Spring damping devices have a large compressibility, low natural frequency, and high low-frequency damping efficiency.

[0013] 4. Temperature changes will not affect the performance of the spring damping device. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention.

[0015] Figure 2 This is the front view of the present utility model.

[0016] Figure 3 This is the main view of the bottom plate welded component of this utility model.

[0017] Figure 4 This is the main view of the top plate welded component in this utility model.

[0018] In the diagram: 1. Base plate welded component; 101. Spring base plate; 102. Spring base support; 2. Top plate welded component; 201. Spring top plate; 202. Spring top support; 3. Vibration damping spring; 4. Anti-detachment buckle; 5. Anti-detachment bolt. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 As shown, this utility model provides a technical solution: a spring vibration damping device suitable for car bottom vibration reduction, including a bottom plate welded part 1, a top plate welded part 2, a damping spring 3, anti-detachment buckles 4, and anti-detachment bolts 5. The damping springs 3 are respectively inserted into the spring base brackets 102 in the bottom plate welded part 1. The two anti-detachment buckles 4 are respectively connected to the tapping holes on the spring top plate 201 in the top plate welded part 2. The overall structure composed of the top plate welded part 2 and the anti-detachment buckles 4 is connected to the overall structure composed of the bottom plate welded part 1 and the damping spring 3 through the spring base brackets 102 and the spring top brackets 202 respectively. The spring top brackets 202 should be between the spring base brackets 102 and the damping springs 3. The two anti-detachment bolts 5 pass through the two anti-detachment buckles 4 respectively and are connected to the tapping holes on the spring base plate 101 in the bottom plate welded part 1, thus completing the assembly of the overall structure of the spring vibration damping device of this utility model.

[0023] like Figure 2 As shown, the bottom plate welding component 1 includes a spring bottom plate 101 and a spring bottom support 102, the spring bottom support 102 being welded onto the spring bottom plate 101. The top plate welding component 2 includes a spring top plate 201 and a spring top support 202, the spring top support 202 being welded onto the spring top plate 201.

[0024] like Figure 3 As shown, the dimensions of the spring base plate 101 and the number and size of the holes in the spring base support 102 are determined by the bracket structure and the vibration reduction principle. Finally, all the spring base supports 102 are welded onto the spring base plate 101 to form the base plate welding part 1 in this utility model.

[0025] like Figure 4 As shown, the size of the spring top plate 201 and the number and size of the holes in the spring top support 202 are determined by the car bottom structure and the vibration reduction principle. Finally, all the spring top supports 202 are welded onto the spring top plate 201 to form the top plate welded part 2 in this utility model.

[0026] Although the present invention has been disclosed above by means of embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope claimed in the claims.

Claims

1. A spring damper device suitable for use in a car bottom damping, characterized in that, The spring damping device for damping the elevator car comprises a bottom plate welding part, a top plate welding part, damping springs, anti-off buckles and anti-off bolts, the damping springs are respectively inserted into the spring bottom supports in the bottom plate welding part, two anti-off buckles are respectively connected with the tapped holes on the spring top plates in the top plate welding part, the overall structure of the top plate welding part and the anti-off buckles is correspondingly clamped together with the overall structure of the bottom plate welding part and the damping springs through the spring bottom supports and the spring top supports, wherein the spring top supports should be between the spring bottom supports and the damping springs, and two anti-off bolts are respectively connected with the tapped holes on the spring bottom plates in the bottom plate welding part through the two anti-off buckles.

2. The spring damping device for damping the elevator car according to claim 1, wherein the bottom plate welding part comprises a spring bottom plate and a spring bottom support, and the spring bottom support is welded on the spring bottom plate.

3. The spring damping device for damping the elevator car according to claim 1, wherein the top plate welding part comprises a spring top plate and a spring top support, and the spring top support is welded on the spring top plate.

4. The spring damping device for damping the elevator car according to claim 1, wherein the size of the spring bottom plate and the number and size of the spring bottom support holes are determined by the bracket structure and the damping principle.