A vibration isolator without outer sleeve force transmission

Abstract

The present invention provides a vibration isolator that does not require an outer sleeve to transmit force, comprising an elastic support structure (1), a connection structure (2) and a position-limiting support structure (3); the elastic support structure comprises three elastic blocks (11), the elastic blocks are connected to form a ring through elastic soft connections (13), and first magnets (12) are provided at both ends of each elastic block (11), and the magnetic poles on the outer sides of the first magnets are the same, so that adjacent first magnets are opposite to each other with the same magnetic poles to generate a repulsive force; the connection structure (2) comprises three connection blocks (21), and second magnets (22) are provided on both sides of each connection block, and the magnetic poles on the outer sides of the second magnets are opposite to the magnetic poles on the outer sides of the first magnets; a support rod fixing point (23) is provided on the inner side of each connection block (21); the position-limiting support structure (3) comprises three support rods (31) and a collar (32), and one end of each support rod (31) is fixed to the outer side of the collar (32).

Description

Technical Field

[0001] The present invention relates to the field of rail transportation technology, and more particularly to a vibration isolator that does not require an outer sleeve to transmit force. Background Art

[0002] With the development of urban rail transit, while alleviating urban traffic pressure, it has also brought some vibration and noise pollution. This pollution has a greater impact on vibration and noise sensitive areas. Therefore, different vibration isolation measures need to be taken according to environmental factors such as urban topography, building structures along the line, and the characteristics of rail transit lines.

[0003] In order to reduce vibration and noise, steel spring floating slab roadbed is often used in sensitive areas such as hospitals, schools, residential buildings and ancient buildings. Steel spring damping isolators are the main components of steel spring floating slab roadbed (see attached Figure 1 The steel spring damping isolator consists of an outer sleeve and an inner sleeve. The outer sleeve and steel cage are cast together to form the main body of the trackbed slab, which is then lifted through a jacking process. Three load-bearing blocks on the outer sleeve transmit the train load to the height adjustment pads and then to the inner sleeve. When a train passes, the trackbed slab moves up and down, supported by the steel spring isolator, offsetting the train's vibration energy and thus achieving a vibration reduction effect.

[0004] That is, in the prior art, the outer sleeve is cast as one with the roadbed concrete and is a permanent component that cannot be replaced. If the outer sleeve is damaged, it will affect the vibration reduction effect of the floating plate and even affect driving safety.

[0005] Therefore, new techniques and devices are needed to at least partially eliminate the problems existing in the prior art. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a vibration isolator that does not require an outer sleeve to transmit force, which can be applied to the field of spring floating plate vibration reduction tracks in urban rail transit projects; when the outer sleeve of the spring vibration isolator is damaged, it can replace the original vibration isolator and be installed in the floating gap between the floating plate and the base to restore the vibration reduction and safety performance of the floating plate.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A vibration isolator that does not require an outer sleeve to transmit force, comprising an elastic support structure (1), a connection structure (2) and a position-limiting support structure (3);

[0009] The elastic support structure comprises three elastic blocks (11), each elastic block is connected to form a ring by an elastic soft connection (13), and a first magnet (12) is provided at both ends of each elastic block (11), and the magnetic poles on the outer sides of the first magnets are the same, so that adjacent first magnets are opposite to each other with the same magnetic poles to generate a repulsive force; the connection structure (2) comprises three connection blocks (21), and a second magnet (22) is provided on both sides of each connection block, and the magnetic poles on the outer sides of the second magnets are opposite to the magnetic poles on the outer sides of the first magnets; a support rod fixing point (23) is provided on the inner side of each connection block (21); the position limiting support structure (3) comprises three support rods (31) and a collar (32), and one end of each support rod (31) is fixed to the outer side of the collar (32);

[0010] When the elastic support structure (1) is arranged in the outer sleeve, the connection structure (2) can be arranged inside the elastic support structure (1) and there is a jacking reserved space (4) inside the three connection blocks (21); after jacking, the three connection blocks (21) can be respectively embedded between the three elastic blocks (11), and the three support rods (31) are respectively connected to the support rod fixing points (23).

[0011] According to an embodiment of the present invention, the height of the first magnet (12) and the height of the connecting structure (2) are both lower than the height of the elastic block (11).

[0012] According to an embodiment of the present invention, the three support rods (31) are distributed at an angle of 120 degrees.

[0013] According to an embodiment of the present invention, the vibration isolator that does not require an outer sleeve to transmit force further includes a horizontal limiter (5) that can be embedded in the collar (32).

[0014] According to an embodiment of the present invention, the elastic block (11) is a rubber elastic block.

[0015] According to an embodiment of the present invention, the outer portion of the elastic block (11) is arc-shaped and matches the inner wall of the outer sleeve.

[0016] The vibration isolator of the present invention, which does not require an outer sleeve to transmit force, can be installed using the gap between the floating plate and the base; the vibration isolator can be installed while being lifted by a jack within the limited space of the outer sleeve; the vibration isolator is connected through multiple structures to achieve a limiting function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the steel spring floating plate roadbed in the prior art;

[0018] Figure 2 Schematic diagram of the structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of an elastic support structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the structure of the elastic block of the vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention;

[0021] Figure 5 2. It is a schematic structural diagram from another angle of the elastic block of the vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of a connection structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the connection block of the vibration isolator that does not require outer sleeve force transmission according to an embodiment of the present invention;

[0024] Figure 8 2. It is a structural schematic diagram from another angle of the connection block of the vibration isolator that does not require outer sleeve force transmission according to an embodiment of the present invention;

[0025] Figure 9 A schematic diagram of a position limiting support structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention; and

[0026] Figure 10 This is a schematic structural diagram of the installed vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Figure 2 The figure is a schematic diagram of the structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention. This figure is a schematic diagram of the vibration isolator after installation. As shown in the figure, the vibration isolator can include an elastic support structure 1, a connecting structure 2, a limiting support structure 3, and a horizontal limiter 5. The connecting structure 2 is embedded in the elastic support structure (1), the limiting support structure 3 is connected to the connecting structure 2, and the horizontal limiter 5 is embedded in the limiting support structure 3. The following is a detailed description of each component in conjunction with the accompanying drawings.

[0029] Figure 3Schematic diagram of an elastic support structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the elastic block of the vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention; Figure 5 This figure shows another angled schematic diagram of the elastic blocks of a vibration isolator that does not require an outer sleeve for force transmission, according to an embodiment of the present invention. As shown, the elastic support structure 1 comprises three elastic blocks 11, connected in a ring-like formation by elastic flexible connections 13. For example, the elastic blocks can be made of polyurethane or rubber, and the flexible connections can be made of springs or other organic elastic materials. A first magnet 12 is fixed at each end of each elastic block 11. The outer magnetic poles of these first magnets are identical, for example, both north poles, so that adjacent first magnets face each other with the same magnetic poles, generating a repulsive force. The outer surface of the elastic block is curved to align with the inner wall of the outer sleeve. Before lifting with the jack, the elastic support structure 1 is placed at the bottom of the outer sleeve, firmly against the base. Due to the magnetic repulsion, the three elastic blocks 11 of the elastic support structure are evenly distributed and closely adhere to the outer sleeve wall, forming a circular ring centered at the center of the outer sleeve. Furthermore, the height of the first magnet is smaller than that of the elastic block 11 to ensure that the bottom surface of the floating plate does not contact the magnets during subsequent installation and use.

[0030] Figure 6 Schematic diagram of a connection structure of a vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the connection block of the vibration isolator that does not require outer sleeve force transmission according to an embodiment of the present invention; Figure 8 This is a structural schematic diagram of another angle of the connection block of the vibration isolator that does not require an outer sleeve to transmit force according to an embodiment of the present invention. As shown in the figure, the connection structure 2 may include three connection blocks 21. The connection blocks may be formed into an arc shape, for example, and may be made of metal. A second magnet 22 is provided on both sides of each connection block. The magnetic pole on the outer side of the second magnet is opposite to the magnetic pole on the outer side of the first magnet. For example, when the magnetic pole on the outer side of the first magnet is the N pole, the magnetic pole on the outer side of the second magnet may be the S pole. A support rod fixing point 23 is provided on the inner side of each connection block 21 for connecting the support rod of the fixed limiting support structure 3. Before the jack is lifted, the connection structure 2 can be placed inside the elastic support structure, with the geometric center located at the center of the outer sleeve, and there is a jacking reserved space 4 inside the three connection blocks 21. In addition, the height of the entire connection structure 2 is less than the elastic block 11 to ensure that the bottom surface of the floating plate will not contact the connection structure 2 during subsequent installation and use.

[0031] Figure 9The figure is a schematic diagram of a position-limiting support structure for a vibration isolator that does not require an outer sleeve for force transmission, according to an embodiment of the present invention. Referring to the accompanying drawings, the position-limiting support structure 3 may include three support rods 31 and a collar 32. One end of each support rod 31 is fixed to the outside of the collar 32. The three support rods 31 are spaced 120 degrees apart. The position-limiting support structure 3 may be made of metal, and the components may be connected by welding.

[0032] After the jack is lifted, the gap between the floating plate and the base becomes larger and higher than the elastic support structure 1. The elastic support structure 1 loses the restraining force of the outer sleeve. The elastic support structure is stretched open by the mutual repulsion of the magnets and is restrained by the elastic soft connection 13. When the restraining force of the elastic soft connection and the repulsive force of the magnet 12 are balanced, a stable triangle is formed. Afterwards, the connection structure 2 is moved outward respectively. Due to the attraction of the magnets, the connection block 21 will be embedded between the elastic blocks 11 to form a closed loop. The support rods 31 of the limiting support structure are then connected to the support rod fixing points 23 respectively, and the horizontal limiter 5 (locating pin) is inserted into the ring 32 from the outside. After installation (see attached Figure 10 ), to achieve the role of horizontal limit.

[0033] It should be understood that the stiffness of the elastic support structure should match the stiffness of the original vibration isolator. After the jack is unloaded, the floating plate sinks and the vibration isolator plays an effective elastic support role for the floating plate.

[0034] While specific implementations have been described above, the present invention is not limited to the implementations described above. The basic concept of the present invention lies in the above-described basic scheme. For those skilled in the art, designing various modified models, formulas, and parameters based on the teachings of the present invention does not require creative effort. Changes, modifications, substitutions, and variations to the implementations without departing from the principles and spirit of the present invention remain within the scope of protection of the present invention.

Claims

1. A vibration isolator that does not require an outer sleeve to transmit force, characterized in that: It comprises an elastic support structure (1), a connection structure (2) and a position-limiting support structure (3); The elastic support structure comprises three elastic blocks (11), each elastic block is connected to form a ring by an elastic soft connection (13), and a first magnet (12) is provided at both ends of each elastic block (11), and the magnetic poles on the outer sides of the first magnets are the same, so that adjacent first magnets are opposite to each other with the same magnetic poles to generate a repulsive force; the connection structure (2) comprises three connection blocks (21), and a second magnet (22) is provided on both sides of each connection block, and the magnetic poles on the outer sides of the second magnets are opposite to the magnetic poles on the outer sides of the first magnets; a support rod fixing point (23) is provided on the inner side of each connection block (21); the position limiting support structure (3) comprises three support rods (31) and a collar (32), and one end of each support rod (31) is fixed to the outer side of the collar (32); When the elastic support structure (1) is arranged in the outer sleeve, the connection structure (2) can be arranged in the elastic support structure (1) and there is a jacking reserved space (4) inside the three connection blocks (21); after jacking, the three connection blocks (21) can be respectively embedded between the three elastic blocks (11), and the three support rods (31) are respectively connected to the support rod fixing points (23).

2. The vibration isolator without outer sleeve force transmission according to claim 1, characterized in that: The height of the first magnet (12) and the height of the connecting structure (2) are both lower than the height of the elastic block (11).

3. The vibration isolator without outer sleeve force transmission according to claim 1, characterized in that: The three support rods (31) are distributed at an angle of 120 degrees.

4. The vibration isolator without outer sleeve force transmission according to claim 1, characterized in that: It also includes a horizontal stopper (5) that can be embedded in the collar (32).

5. The vibration isolator without outer sleeve force transmission according to claim 1, characterized in that: The elastic block (11) is a rubber elastic block or a polyurethane elastic block.

6. The vibration isolator without outer sleeve force transmission according to claim 1, characterized in that: The outer portion of the elastic block (11) is arc-shaped and matches the inner wall of the outer sleeve.

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