Adjustable vibration isolator mounting sleeve for floating slab

Abstract

The utility model discloses an adjustable vibration isolator mounting sleeve for a floating slab, which relates to the technical field of rail transit and comprises a sleeve body with two open ends, a vibration isolator is movably arranged in the sleeve body, the movable end of the vibration isolator extends out of the sleeve body from the lower side, a sealing plate is arranged at the top of the sleeve body, and a limiting clamping groove is arranged on the inner wall of the sleeve body. A plurality of limiting clamping grooves are formed in the positions, at different heights, of the vibration isolation cylinder in the axial direction, limiting protrusions matched with the limiting clamping grooves are arranged on the vibration isolation cylinder, the limiting clamping grooves are rotatable clamping grooves, and each limiting clamping groove comprises a first clamping opening clockwise formed around the outer circumference of the vibration isolation cylinder and a second clamping opening anticlockwise formed around the outer circumference of the vibration isolation cylinder. The first clamping opening and the second clamping opening are consistent in height or have height difference in the axial direction, and the limiting protrusion is clamped with the first clamping opening or the second clamping opening and can be screwed into the vibration isolator in a two-way mode.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a vibration isolator mounting sleeve technology. Background Technology

[0002] In the field of rail transit technology, floating slab systems are widely used in urban rail transit systems such as subways and light rails as an effective vibration reduction and noise reduction measure. By suspending the track structure on a concrete or steel floating slab supported by vibration isolators, the floating slab system effectively isolates the vibrations and noise generated during train operation, improving passenger comfort and reducing the impact on the surrounding environment.

[0003] Adjustable vibration isolators are a key component in floating slab systems, and the ease of installation and adjustment significantly impacts the overall system performance and maintenance costs. Traditional one-piece cast-outer sleeve vibration isolators typically can only be screwed in in one direction during installation, which limits installation flexibility and efficiency to some extent. Furthermore, this one-way screwing method can lead to damage to the isolator or sleeve due to improper operation during installation, increasing maintenance costs.

[0004] To address the aforementioned issues, various improvements have emerged in existing technologies, but most suffer from drawbacks such as complex structures, high manufacturing costs, or limited adjustment ranges. Therefore, developing a simple, low-cost, and bidirectionally screw-in adjustable vibration isolator mounting sleeve for floating slabs is of paramount importance. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model discloses an adjustable vibration isolator mounting sleeve for floating slabs. Utilizing the bidirectional bayonet-type limiting groove inside the sleeve body, the vibration isolator can be screwed in bidirectionally, facilitating practical use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable vibration isolator mounting sleeve for a floating slab, comprising a sleeve body with openings at both ends, a vibration isolator movably disposed within the sleeve body, the movable end of the vibration isolator extending from below out of the sleeve body, a sealing plate being provided at the top of the sleeve body, the vibration isolator comprising an elastically connected vibration isolating cylinder and a supporting cylinder cover, an elastic element providing elastic support force being disposed within the vibration isolating cylinder, the upper end of the elastic element abutting against the bottom of the supporting cylinder cover, and a supporting element being disposed at the top of the supporting cylinder cover. The inner wall of the sleeve body is provided with a limiting groove, and multiple limiting grooves are provided at different height positions along the axial direction of the vibration isolator. The vibration isolator is provided with a limiting protrusion that cooperates with the limiting groove. The limiting groove is a rotatable groove. The limiting groove includes a first locking slot arranged clockwise around the outer circumference of the vibration isolator and a second locking slot arranged counterclockwise around the outer circumference of the vibration isolator. The first locking slot and the second locking slot are at the same height in the axial direction or have a height difference. The limiting protrusion engages with the first locking slot or the second locking slot, and can be rotated into the vibration isolator in both directions.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Preferably, the vibration isolation cylinder and the support cylinder cover are provided with annular limiting grooves at the positions corresponding to the elastic elements.

[0009] Preferably, the first and second bayonet slots are evenly distributed around the axis in multiples.

[0010] Preferably, the limiting protrusions are evenly distributed around the top periphery of the support cylinder cover.

[0011] The product design of this utility model has the following beneficial effects:

[0012] 1. Adjustable and high-performance: The limiting slot includes a first locking slot arranged clockwise around the outer circumference of the vibration isolator and a second locking slot arranged counterclockwise around the outer circumference of the vibration isolator; the limiting protrusion can engage with the first or second locking slot. When the first and second locking slots are at the same height, the vibration isolator can be screwed in bidirectionally. When the first and second locking slots are designed with a height difference in the axial direction of the vibration isolator, the steps corresponding to the different heights of the first and second locking slots can be switched to the second step when the adjustment amount is large, reducing the number of adjustment shims. This adjustability allows the device to adapt to different working environments and vibration isolation requirements, improving its versatility and practicality.

[0013] 2. Enhanced Stability: The design of the limiting connection assembly, including limiting bolts and clamps, effectively restricts the relative position between the vibration isolator and the support cylinder cover, preventing them from separating during operation. This enhanced stability helps maintain the continuous and effective operation of the vibration isolator, improving the stability and reliability of the entire device.

[0014] 3. Convenient installation and maintenance: The connection between the vibration isolator and the support cover via a limiting connection assembly simplifies installation and disassembly. Furthermore, the rotatable slot design makes adjusting the installation height of the vibration isolator easy, facilitating routine maintenance and adjustments.

[0015] 4. Optimized Elastic Support: The elastic elements inside the vibration isolator provide excellent elastic support, effectively absorbing and buffering external vibrations and protecting the floating slab from vibration damage. This optimization of elastic support helps improve the service life and performance stability of the floating slab.

[0016] 5. Wide Range of Applications: This device is suitable for various floating slab applications requiring vibration isolation, such as construction, transportation, and machinery. Its adjustability and versatility allow it to meet the needs of different industries and scenarios, offering broad application prospects. In summary, this adjustable vibration isolator mounting sleeve device for floating slabs, through its unique design and structure, achieves beneficial effects such as adjustable vibration isolation performance, enhanced stability, convenient installation and maintenance, optimized elastic support force, and a wide range of applications, providing an effective solution for vibration isolation protection of floating slabs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal overall structure of the mounting sleeve in Example 1;

[0018] Figure 2 This is a three-dimensional structural diagram of the sleeve body in Example 1;

[0019] Figure 3 This is a diagram showing the internal structure of the sleeve body in Example 1.

[0020] Figure 4 This is a three-dimensional structural diagram of the elastic vibration isolator in Example 1;

[0021] Figure 5 This is an internal cross-sectional view of the elastic vibration isolator in Example 1;

[0022] Figure 6 This is a schematic diagram of the internal overall structure of the mounting sleeve in Example 2.

[0023] Among them, 1-vibration isolation cylinder; 2-top support plate; 3-rubber sealing ring; 4-sealing hose clamp; 5-limiting connection assembly; 9-support cylinder cover; 10-support component; 12-annular limiting groove; 18-sleeve body; 19-limiting slot; 20-limiting protrusion; 21-cap; 22-first bayonet; 23-second bayonet. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] Example 1:

[0026] like Figures 1-5 As shown, an adjustable vibration isolator mounting sleeve for a floating slab includes a sleeve body 18 with openings at both ends. A vibration isolator is movably mounted inside the sleeve body, with the movable end of the vibration isolator extending out of the sleeve body. A cap 21 is installed on the top of the sleeve body, and the open end is located at the bottom. Limiting grooves 19 are formed on the inner wall of the sleeve body, and multiple limiting grooves are designed at different height positions along the axial direction of the vibration isolator. Limiting protrusions 20 that cooperate with the limiting grooves are designed on the vibration isolator. The limiting grooves are rotatable grooves, including a first locking slot 22 arranged clockwise around the outer circumference of the vibration isolator and a second locking slot 23 arranged counterclockwise around the outer circumference of the vibration isolator. The limiting protrusions engage with the first locking slot 22 or the second locking slot 23, enabling bidirectional rotation to adjust the height of the vibration isolator. Furthermore, in this embodiment, the first locking slot and the second locking slot are designed with a height difference along the axial direction of the vibration isolator to change the height of the vibration isolator during bidirectional rotation. In practical applications, after the vibration isolator is installed during construction, it needs to be leveled. This is usually done by using height adjustment shims. When the height adjustment is large, the steps corresponding to the first and second clamps can be switched to the second step to reduce the number of height adjustment shims.

[0027] The vibration isolator, as the core elastic component, includes an elastically connected vibration isolating cylinder 1 and a support cylinder cover 9. An elastic component providing elastic support is installed inside the vibration isolating cylinder. The accommodating cavity inside the vibration isolating cylinder 1 matches the size of the elastic component. The upper end of the elastic component rests against the bottom of the support cylinder cover 9. As the main component providing elastic support, the elastic component, together with the vibration isolating cylinder and the support cylinder cover 9, forms an effective vibration reduction structure. In this embodiment, the elastic component is a steel spring. A support component 10 is installed on the top of the support cylinder cover 9, and limiting protrusions 20 are triangularly distributed on the support cylinder cover 9. In this embodiment, the support cylinder cover, support component, and limiting protrusions are integrally formed as a top support plate 2 for easy processing. The integral forming design of the support cylinder cover and support component also enhances the strength and stability of the overall structure. A limiting connection component 5 for limiting the relative position of the vibration isolating cylinder and the support cylinder cover is also installed between them.

[0028] In addition, annular limiting grooves 12 are provided on the vibration isolator and support cylinder cover corresponding to the elastic element positions. The design of the annular limiting grooves enhances the connection strength between the elastic element and the vibration isolator and support cylinder cover, improving the load-bearing capacity of the vibration isolator. A gap is reserved between the vibration isolator and support cylinder cover, and rubber sealing rings 3 are installed on the outer walls of the vibration isolator and support cylinder cover at the gap positions. The rubber sealing rings 3 are connected to the vibration isolator and support cylinder cover by sealing hose clamps 4. The installation of rubber sealing rings 3 and sealing hose clamps 4 ensures that the gap between the vibration isolator and support cylinder cover is effectively sealed, preventing the entry of external impurities and liquids, thereby extending the service life of the vibration isolator.

[0029] Example 2:

[0030] like Figure 6 As shown, in this embodiment, the first bayonet 22 and the second bayonet 23 are at the same height in the axial direction of the vibration isolation cylinder, which can realize the vibration isolator being rotated into the vibration isolation cylinder in both directions.

[0031] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable vibration isolator mounting sleeve for a floating slab, comprising a sleeve body open at both ends, a vibration isolator movably disposed within the sleeve body, the movable end of the vibration isolator extending from below out of the sleeve body, a sealing plate disposed at the top of the sleeve body, the vibration isolator comprising an isolation cylinder and a support cylinder cover elastically connected, an elastic element providing elastic support force disposed within the isolation cylinder, the upper end of the elastic element abutting against the bottom of the support cylinder cover, and a support element disposed at the top of the support cylinder cover, characterized in that: The inner wall of the sleeve body is provided with a limiting groove, and multiple limiting grooves are provided at different height positions along the axial direction of the vibration isolator. The vibration isolator is provided with a limiting protrusion that cooperates with the limiting groove. The limiting groove is a rotatable groove. The limiting groove includes a first locking slot arranged clockwise around the outer circumference of the vibration isolator and a second locking slot arranged counterclockwise around the outer circumference of the vibration isolator. The first locking slot and the second locking slot are at the same height in the axial direction or have a height difference. The limiting protrusion engages with the first locking slot or the second locking slot, and can be rotated into the vibration isolator in both directions.

2. The adjustable vibration isolator mounting sleeve for a floating slab according to claim 1, characterized in that: The vibration isolation cylinder and the support cylinder cover are provided with annular limiting grooves at the positions corresponding to the elastic elements.

3. The adjustable vibration isolator mounting sleeve for a floating slab according to claim 1, characterized in that: The first and second bayonets are evenly distributed around the axis in multiples.

4. The adjustable vibration isolator mounting sleeve for a floating slab according to claim 1, characterized in that: The limiting protrusions are evenly distributed around the axis on the top periphery of the support cylinder cover.

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