Novel vibration isolator

Abstract

The utility model discloses a novel vibration isolator, which relates to the technical field of rail transit and comprises a vibration isolation cylinder and a cylinder cover which are elastically connected, an elastic piece for providing elastic supporting force is arranged in the vibration isolation cylinder, the upper end of the elastic piece is propped against the bottom of the cylinder cover, and a supporting piece is arranged at the top of the cylinder cover. A limiting connecting assembly used for limiting the relative position of the vibration isolation cylinder and the cylinder cover is further arranged between the vibration isolation cylinder and the cylinder cover, the limiting connecting assembly comprises a limiting rod, the limiting rod is arranged in the vibration isolation cylinder, the upper end of the limiting rod sequentially penetrates through the cylinder cover, and the clamping piece is arranged at the top of the cylinder cover and detachably connected with the limiting rod. The limiting connecting assembly is used for preventing the vibration isolation cylinder and the cylinder cover from being separated from each other, the limiting rod is a limiting bolt, and a buffering cavity and a blocking partition plate are sequentially arranged in the vibration isolation cylinder and correspond to the lower portion of a bolt head of the limiting bolt and used for supporting the limiting bolt when the elastic piece loses efficacy. And on the other hand, limiting after the elastic piece fails can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, especially a kind of vibration isolator technology. BACKGROUND

[0002] Most of the subway, light rail transit track structure in the world adopts the concrete monolithic track bed with large rigidity to reduce the routine maintenance work in operation, and the elasticity of track structure mainly depends on rail fastening. Poor elasticity of rail fastening will cause serious wheel-rail vibration and impact, not only affecting the service life of track structure, but also bringing environmental pollution such as vibration and noise, directly affecting people's life and health. Many countries in the world have carried out a lot of research on vibration reduction type track structure. At present, the main forms of vibration reduction track are elastic fastening, elastic sleeper and floating track structure. Floating track structure is the most effective vibration reduction measure. Floating track structure is a mass-spring system composed of reinforced concrete track bed plate and elastic support. Such spring system is generally called vibration isolator.

[0003] Elastic member vibration isolator, as a new type of vibration isolation solution, has attracted widespread attention due to its excellent load-bearing capacity and long service life. However, traditional elastic member vibration isolators usually need to use adhesive or other fixing methods to connect the support and the vibration cylinder together during installation, which not only increases the complexity and time cost of installation, but also may cause the vibration cylinder and the support to separate due to the loss of connection once the elastic member fails, resulting in equipment damage or structural instability. Therefore, it is necessary to design a new type of elastic member vibration isolator, which can be installed more conveniently by improving its structure, and can provide effective limiting action to prevent the vibration cylinder and the support from separating when the elastic member fails, thereby improving the overall stability and reliability of the vibration isolator. SUMMARY

[0004] In order to solve the problems raised in the background art, the utility model discloses a new type of vibration isolator, which avoids the use of adhesive, makes the installation of the vibration isolator more convenient, and when the internal elastic member fails, the limiting connection assembly can prevent the moving part of the vibration isolator from separating and play a limiting role.

[0005] The utility model discloses a technical scheme is: a novel vibration isolator, including the vibration isolation cylinder of elastic connection, cylinder cover, be provided with the elastic member of providing elastic supporting force in the vibration isolation cylinder, the elastic member upper end holds in the cylinder cover bottom, the cylinder cover top is provided with the support piece, still be provided with the spacing connecting assembly for limiting the relative position of both between the vibration isolation cylinder, cylinder cover, the spacing connecting assembly includes spacing rod, fastener, the spacing rod sets up in the vibration isolation cylinder, the spacing rod upper end in proper order penetrates cylinder cover, the fastener sets up in cylinder cover top and with spacing rod can detachable connection, for preventing vibration isolation cylinder, cylinder cover from each other and separates, the spacing rod is spacing bolt, the bolt head below position of corresponding spacing bolt in the vibration isolation cylinder in proper order is provided with buffer cavity, baffle, for the elastic member failure when supporting spacing bolt.

[0006] In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:

[0007] Preferably, the vibration isolation cylinder and the cylinder cover are provided with annular limiting grooves corresponding to the positions of the elastic members.

[0008] Preferably, a gap is reserved between the vibration isolation cylinder and the cylinder cover, rubber sealing rings are arranged on the outer walls of the vibration isolation cylinder and the cylinder cover corresponding to the positions of the gap, and damping liquid is arranged in the vibration isolation cylinder.

[0009] Preferably, the rubber sealing rings are connected with the vibration isolation cylinder and the cylinder cover through sealing collars.

[0010] Preferably, the cylinder cover and the support piece are integrally formed.

[0011] Preferably, the fastener is a nut, a positioning seat is arranged at the middle position in the vibration isolation cylinder, and a clamping groove is arranged on the positioning seat and matched with the head of the spacing bolt.

[0012] Preferably, the clamping groove is a T-shaped opening groove.

[0013] Preferably, a rotation-preventing opening groove is arranged on the top of the spacing bolt in the radial direction.

[0014] The utility model product has the following beneficial effects:

[0015] 1. Convenient installation and disassembly: through the detachable connection of the spacing connecting assembly, especially the spacing rod (such as the spacing bolt) and the fastener (such as the nut), the installation and disassembly between the vibration isolation cylinder and the cylinder cover become very convenient. This design avoids using adhesive or other fixing methods, thereby reducing the installation time and cost.

[0016] 2. Enhanced structural stability: The limiting connection assembly not only provides a convenient installation method, but also prevents the separation between the vibration isolation cylinder and the cylinder cover when the elastic element fails. This design ensures that the vibration isolator maintains structural stability and reliability in harsh environments.

[0017] 3. Optimized damping performance: The elastic element, as the main component providing elastic support force, combined with the vibration isolation cylinder and cylinder cover, forms an effective damping structure. In addition, the damping liquid and rubber sealing ring inside the vibration isolation cylinder further enhance the damping effect and reduce vibration transmission.

[0018] 4. Good sealing performance: The setting of the rubber sealing ring and the sealing throat clamp ensures that the gap between the vibration isolation cylinder and the cylinder cover is effectively sealed, preventing the entry of external impurities and liquids, thereby prolonging the service life of the vibration isolator.

[0019] 5. Enhanced load-bearing capacity: The design of the annular limiting groove enhances the connection strength between the elastic element and the vibration isolation cylinder and cylinder cover, improving the load-bearing capacity of the vibration isolator. At the same time, the integrated design of the cylinder cover and the support element enhances the strength and stability of the overall structure.

[0020] 6. Flexible limiting design: The anti-rotation opening slot design at the top of the limiting bolt makes it more flexible when adjusting the position of the limiting bolt, facilitating the adjustment of the damping performance of the vibration isolator according to actual needs.

[0021] In summary, this elastic element vibration isolator design has significant benefits in terms of convenience, structural stability, damping performance, sealing performance, load-bearing capacity, and flexibility, providing a high-efficiency and reliable damping solution for modern industrial and construction fields. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a schematic diagram of the three-dimensional structure of the elastic element vibration isolator in Example 1;

[0023] Fig. 2 is a schematic diagram of the internal three-dimensional structure of the elastic element vibration isolator in Example 1;

[0024] Fig. 3 is a schematic diagram of the internal cross-sectional view of the elastic element vibration isolator in Example 1;

[0025] Fig. 4 is a schematic diagram of the limiting connection assembly structure in Example 1;

[0026] Fig. 5 is a schematic diagram of the cylinder cover and connecting element structure in Example 1.

[0027] Among them, 1-vibration isolation cylinder; 2-top support member; 3-rubber sealing ring; 4-sealing throat clamp; 5-limiting connection assembly; 6-accommodating chamber; 7-bolt hole; 8-elastic member; 9-cylinder cover; 10-support member; 11-positioning seat; 12-annular limiting groove; 13-limiting rod; 14-clamping member; 15-anti-rotation opening groove; 16-groove; 17-clamping slot; 18, buffer chamber; 19, limiting partition. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0029] Example 1:

[0030] like Figs. 1-5 As shown, a new type of vibration isolator includes an elastically connected vibration isolation tube 1 and a tube cover 9. An elastic member 8 providing elastic support force is installed in the vibration isolation tube. The accommodating cavity 6 in the vibration isolation tube 1 matches the size of the elastic member. The upper end of the elastic member 8 is supported on the bottom of the tube cover 9. The elastic member is the main component providing elastic support force. It is combined with the vibration isolation tube and the tube cover 9 to form an effective vibration reduction structure. In this embodiment, the elastic member adopts a steel spring. A support member 10 is installed on the top of the tube cover 9. In this embodiment, the tube cover and the support member are integrally formed as a top support plate 2 to facilitate processing. The integral molding design of the tube cover and the support member also enhances the strength of the overall structure. Degree and stability, wherein the support area of ​​the top support plate is distributed in a triangular shape, which is convenient for increasing the support area; a limit connection assembly 5 is also installed between the vibration isolation tube and the tube cover to limit the relative position of the two, and the limit connection assembly 5 includes a limit rod 13, which is installed in the vibration isolation tube, and the upper end of the limit rod passes through the tube cover in turn. The clamp 14 is installed on the top of the tube cover and is detachably connected to the limit rod to prevent the vibration isolation tube and the tube cover from detaching from each other; through the limit connection assembly, especially the detachable connection of the limit rod 13 (such as a limit bolt) and the clamp 14 (such as a nut), the installation and disassembly between the vibration isolation tube and the tube cover becomes very convenient. This design avoids the use of adhesives or other fixing methods, thereby reducing installation time and cost; in addition, the limit connection assembly not only provides a convenient installation method, but also can prevent the separation between the vibration isolation tube and the tube cover when the elastic member fails. This design ensures that the vibration isolator can still maintain structural stability and reliability in harsh environments.

[0031] Further, in the embodiment, the limiting rod 13 is a limiting bolt, the clamping piece 14 is a nut, a positioning seat 11 is installed at the middle position of the vibration isolation cylinder, a clamping groove 17 matched with the head of the limiting bolt is formed on the positioning seat 11, and the specific design form is that the clamping groove 17 is a T-shaped opening groove, so that the limiting bolt is installed into the clamping groove from the side; wherein a rotation preventing opening groove 15 is formed on the top of the limiting bolt in the radial direction, the limiting bolt can be fixed in the process of adjusting the nut by using the rotation preventing opening groove 15, the position of the limiting bolt is more flexible during adjustment, the damping performance of the vibration isolator can be adjusted according to actual needs, and in addition, a groove 16 is formed on the cylinder cover at the position corresponding to the nut installation position, so as to ensure the flatness of the top supporting surface.

[0032] In addition, annular limiting grooves 12 are formed on the vibration isolation cylinder and the cylinder cover corresponding to the positions of the elastic pieces, the design of the annular limiting grooves enhances the connecting strength between the elastic pieces and the vibration isolation cylinder and the cylinder cover, and improves the carrying capacity of the vibration isolator.

[0033] Wherein, the positioning seat 11 is sequentially designed with a buffer cavity 18 and a blocking partition plate 19 below the position corresponding to the bolt head of the limiting bolt, for supporting the limiting bolt when the elastic piece fails, once the elastic piece fails (spring breaks), the cylinder cover sinks, the bolt head of the limiting bolt is on the blocking partition plate to play a supporting role, preventing the upper cover of the vibration isolator from collapsing completely.

[0034] In the utility model, unless another definite provision and limitation, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside the intercommunication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art person, can understand the specific meaning of the above-mentioned term in the utility model according to specific circumstances.

[0035] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, under the premise that a number of improvements and refinements can be made, these improvements and refinements should also be considered as the scope of protection of the present application.

Claims

1. A novel vibration isolator, comprising an elastically connected vibration isolating tube and a tube cover, wherein an elastic member providing elastic support is provided in the vibration isolating tube, the upper end of the elastic member is supported on the bottom of the tube cover, and a support member is provided on the top of the tube cover, characterized in that: The limiting connection assembly for limiting the relative position between the vibration isolation cylinder and the cylinder cover comprises a limiting rod and a clamping piece, the limiting rod is arranged in the vibration isolation cylinder, the upper end of the limiting rod penetrates the cylinder cover in sequence, the clamping piece is arranged on the top of the cylinder cover and is detachably connected with the limiting rod, and the clamping piece is used for preventing the vibration isolation cylinder and the cylinder cover from being separated from each other; the limiting rod is a limiting bolt, and a buffer cavity and a blocking baffle are sequentially arranged in the vibration isolation cylinder at positions below the bolt head of the limiting bolt, and are used for supporting the limiting bolt when the elastic member is invalid.

2. A new vibration isolator according to claim 1, characterized by: An annular limiting groove is formed on the vibration isolation cylinder and the cylinder cover at positions corresponding to the elastic member.

3. A new vibration isolator according to claim 1, characterized in that: A gap is reserved between the vibration isolation cylinder and the cylinder cover, rubber sealing rings are arranged on the outer side walls of the vibration isolation cylinder and the cylinder cover at positions corresponding to the gap, and damping liquid is arranged in the vibration isolation cylinder.

4. A new vibration isolator according to claim 3, characterized in that: The rubber sealing rings are connected with the vibration isolation cylinder and the cylinder cover through sealing collars.

5. A new vibration isolator according to claim 1, characterized by: The cylinder cover and the support member are integrally formed.

6. A new vibration isolator according to claim 1, characterized by: The clamping piece is a nut, a positioning seat is arranged in the middle position of the vibration isolation cylinder, and a clamping groove matched with the head of the limiting bolt is formed in the positioning seat.

7. A new vibration isolator according to claim 6, characterized by: The clamping groove is a T-shaped opening groove.

8. A new vibration isolator according to claim 6, characterized by: A rotation-preventing opening groove is formed in the top of the limiting bolt in the radial direction.

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