A three-dimensional seismic isolation bearing

Abstract

The present invention discloses a three-dimensional seismic isolation bearing, comprising: a vertical seismic isolation bearing, which comprises an upper cover plate, a lower cover plate, and a seismic isolation assembly, wherein the bottom surface of the upper cover plate is arched upward to form an upper trough body, and the top surface of the lower cover plate is recessed downward to provide a lower trough body, and the top of the lower cover plate extends into the upper trough body, and the seismic isolation assembly is located in the lower trough body, and the seismic isolation assembly comprises a first slope plate, a second slope plate, and a first buffer pad; a horizontal seismic isolation bearing, which is located on the bottom side of the lower cover plate. The present invention utilizes the inclined first buffer pad to provide a smaller vertical stiffness through oblique compression and shear deformation, thereby effectively attenuating the vertical vibration transmission. Combined with the horizontal seismic isolation of the horizontal seismic isolation bearing, the peripheral structure connected to the present invention can be protected during horizontal and vertical vibrations, thereby achieving the purpose of three-dimensional seismic isolation.

Description

Technical Field

[0001] The invention relates to a shock absorber, in particular to a three-dimensional shock-isolating support. Background Art

[0002] At present, with the continuous increase in the history of rail transit, many environmental vibration and noise problems caused by vibration have gradually emerged. For example, the vibration and secondary noise caused by trains will affect the life, work, rest and sleep of residents along the line, and may even have a destructive effect on buildings. At the same time, the impact of earthquakes on tracks and building structures is also particularly serious.

[0003] In order to ensure that the upper structures such as tracks and buildings are in an elastic state during normal vibrations or earthquakes and to reduce the occurrence of plastic damage to the structures, many scholars at home and abroad have tried to develop many three-dimensional seismic isolation devices, including the use of air springs and hydraulic oil for vertical seismic isolation. However, the performance of such seismic isolation bearings is not stable enough. There are also some combined seismic isolation bearings, which have relatively stable performance but are large in size and have high manufacturing costs. Summary of the invention

[0004] The purpose of the present invention is to provide a three-dimensional seismic isolation bearing to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The solution of the present invention to solve its technical problem is:

[0006] A three-dimensional seismic isolation support, comprising: a vertical seismic isolation support, which comprises an upper cover plate, a lower cover plate, and a seismic isolation assembly, wherein the bottom surface of the upper cover plate is arched upward to form an upper trough body, the top surface of the lower cover plate is recessed downward to form a lower trough body, the top of the lower cover plate extends into the upper trough body, the seismic isolation assembly is located in the lower trough body, the seismic isolation assembly comprises a first ramp plate, a second ramp plate, and a first buffer pad, the first ramp plate and the second ramp plate are arranged side by side in the horizontal direction in the lower trough body, the top surface of the first ramp plate extends downwardly in an inclined direction away from the second ramp plate, and the bottom surface of the first ramp plate is inclined in a direction away from the second ramp plate Extending upward, the first buffer pad is connected between the top surface of the first ramp plate and the inner bottom surface of the upper trough body, the first buffer pad is connected between the bottom surface of the first ramp plate and the inner bottom surface of the lower trough body, the top surface of the second ramp plate extends downwardly at an angle away from the first ramp plate, the bottom surface of the second ramp plate extends upwardly at an angle away from the first ramp plate, the first buffer pad is connected between the top surface of the second ramp plate and the inner bottom surface of the upper trough body, and the first buffer pad is connected between the bottom surface of the second ramp plate and the inner bottom surface of the lower trough body; a horizontal seismic isolation bearing, which is located on the bottom side of the lower cover plate.

[0007] This technical solution has at least the following beneficial effects: the vertical seismic isolation bearings and the horizontal seismic isolation bearings are arranged in a stacked manner, and the horizontal seismic isolation bearings can be located at the top side of the vertical seismic isolation bearings and at the bottom side of the horizontal seismic isolation bearings. The vertical seismic isolation bearings can effectively attenuate the vertical vibration transmission, and the horizontal seismic isolation bearings can effectively attenuate the horizontal vibration transmission. Specifically, in the vertical seismic isolation bearings, the upper cover plate is covered on the lower cover plate, and first buffer pads are provided on the top surface of the first slope plate and the bottom surface of the first slope plate. The two first buffer pads are arranged in an eight-shaped shape rotated 90 degrees. Similarly, the first buffer pad on the top surface of the second slope plate and the first buffer pad on the bottom surface of the second slope plate are arranged in an eight-shaped shape rotated 90 degrees. When the upper cover plate is closed onto the lower cover plate, the first buffer pads are provided on the top surface of the first slope plate and the bottom surface of the first slope plate. When the cover plate and the lower cover plate are subjected to vertical pressure transmission, the pressure is transmitted to the internal seismic isolation component, and the inclined first buffer pad undergoes oblique elastic deformation and vertical compression deformation, the first slope plate and the second slope plate move toward each other, and the vertical elastic deformation in the seismic isolation component is converted into horizontal displacement of the slope plate, thereby achieving delayed response and buffer transmission to external vertical excitation, thereby realizing vertical seismic isolation. Therefore, the present invention utilizes the inclined first buffer pad to provide a smaller vertical stiffness through oblique compression and shear deformation, so that the vertical vibration transmission is effectively attenuated. Combined with the horizontal seismic isolation of the horizontal seismic isolation support, the peripheral structure connected to the present invention can be protected during horizontal and vertical vibrations, thereby achieving the purpose of three-dimensional seismic isolation.

[0008] As a further improvement of the above technical solution, an end of the first ramp plate facing the second ramp plate is the head end of the first ramp plate, and an end of the first ramp plate away from the second ramp plate is the end of the first ramp plate, a plurality of the first ramp plates are arranged in the up-down direction, and between any two adjacent first ramp plates, the head end of one first ramp plate and the end of the other first ramp plate are arranged opposite to each other, and the first buffer pad is arranged between any two adjacent first ramp plates, an end of the second ramp plate facing the first ramp plate is the head end of the second ramp plate, and an end of the second ramp plate away from the first ramp plate is the end of the second ramp plate, a plurality of the second ramp plates are arranged in the up-down direction, and the number of the second ramp plates is equal to the number of the first ramp plates, and between any two adjacent second ramp plates, the head end of one second ramp plate and the end of the other second ramp plate are arranged opposite to each other, and the first buffer pad is arranged between any two adjacent second ramp plates, and a spring is connected between at least one first ramp plate and the second ramp plate facing it. Multiple first slope plates are stacked in the up and down direction, and the head ends and the tail ends of two adjacent first slope plates are staggered with each other, which can better convert the vertical vibration into the shear deformation of the first buffer pad. Similarly, the second slope plates are arranged in the same way as the first slope plates, and the springs between the first slope plates and the second slope plates can play the role of limiting the displacement between the two slope plates connected to them, thereby better playing the role of vertical seismic isolation.

[0009] As another improvement of the above technical solution, a plurality of the first buffer pads are connected between the top surface of the first ramp and the inner bottom surface of the upper trough body, a plurality of the first buffer pads are connected between the bottom surface of the first ramp and the inner bottom surface of the lower trough body, a plurality of the first buffer pads are connected between the top surface of the second ramp and the inner bottom surface of the upper trough body, and a plurality of the first buffer pads are connected between the bottom surface of the second ramp and the inner bottom surface of the lower trough body. A plurality of first buffer pads can be arranged between the first ramp and the inner bottom surface of the upper trough body and the inner bottom surface of the lower trough body, and a plurality of first buffer pads can be arranged between the second ramp and the inner bottom surface of the upper trough body and the inner bottom surface of the lower trough body, so that vibration is effectively buffered.

[0010] As another improvement of the above technical solution, the seismic isolation components are arranged in a plurality in a circular array around the center line of the lower tank body. The more seismic isolation components there are, the higher the overall seismic isolation effect is. Therefore, the seismic isolation components can be arranged in plurality in the lower tank body according to the use requirements.

[0011] As another improvement of the above technical solution, a spring is connected between the first ramp plate and the second ramp plate, which can limit the displacement between the two ramp plates connected thereto, thereby better playing the role of vertical seismic isolation.

[0012] As a further improvement of the above technical solution, friction layers are respectively provided at the connection between the first ramp plate, the second ramp plate and the first buffer pad. The first ramp plate and the second ramp plate can slide relative to the first buffer pad through friction, so as to better offset the vibration converted from vertical to horizontal and improve the seismic isolation effect.

[0013] As a further improvement of the above technical solution, a second buffer pad is connected between the inner wall of the upper tank body and the outer wall of the lower cover plate. The second buffer pad can reduce the instability of the upper cover plate and the lower cover plate from collision and swaying during movement.

[0014] As a further improvement of the above technical solution, the horizontal seismic isolation support includes an elastic seat, a support plate and a mounting plate, wherein the mounting plate is arranged on the top surface of the elastic seat and the bottom surface of the elastic seat, and the mounting plate is connected to the top side of the upper cover plate or the bottom side of the lower cover plate, and a plurality of support plates are arranged in the elastic seat at intervals along the vertical direction. The support plates in the horizontal seismic isolation support can provide support force in the vertical direction, and a spacing is provided between two adjacent support plates, so that the support plates can provide support force in the vertical direction and can be staggered to better offset the vibration in the horizontal direction.

[0015] As a further improvement of the above technical solution, the horizontal seismic isolation support further includes a support column, a through channel is provided in the elastic seat along the vertical direction, a clearance hole is provided at the position of the support plate facing the through channel, and the support column passes through the through channel and the clearance hole. Adding the support column can better improve the vertical support force of the elastic seat to better control the overall deformation of the elastic seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of embodiment 1 of the present invention;

[0018] Figure 2 is a structural schematic diagram of embodiment 2 of the present invention;

[0019] Figure 3 is a structural schematic diagram of embodiment 3 of the present invention;

[0020] Figure 4 is a structural schematic diagram of a fourth embodiment of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the vertical seismic isolation support of the present invention being located below the horizontal seismic isolation support.

[0022] In the accompanying drawings: 110 - upper cover plate, 120 - lower cover plate, 131 - first slope plate, 132 - second slope plate, 133 - first buffer pad, 140 - second buffer pad, 150 - spring, 160 - friction layer, 210 - elastic seat, 220 - support plate, 230 - mounting plate, 240 - support column. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0024] Reference Figure 1 and Figure 5 A three-dimensional seismic isolation support, comprising: a vertical seismic isolation support, which includes an upper cover plate 110, a lower cover plate 120, and a seismic isolation assembly, wherein the bottom surface of the upper cover plate 110 is arched upward to form an upper trough body, the top surface of the lower cover plate 120 is concave downward to form a lower trough body, the top of the lower cover plate 120 extends into the upper trough body, the seismic isolation assembly is located in the lower trough body, the seismic isolation assembly includes a first ramp plate 131, a second ramp plate 132, and a first buffer pad 133, the first ramp plate 131 and the second ramp plate 132 are arranged side by side in the lower trough body in a horizontal direction, the top surface of the first ramp plate 131 extends downwardly in an inclined direction away from the second ramp plate 132, and the bottom surface of the first ramp plate 131 extends downwardly in a direction away from the second ramp plate 132 It extends obliquely upward, with the first buffer pad 133 connected between the top surface of the first slope plate 131 and the inner bottom surface of the upper trough body, the first buffer pad 133 is connected between the bottom surface of the first slope plate 131 and the inner bottom surface of the lower trough body, the top surface of the second slope plate 132 extends obliquely downward in a direction away from the first slope plate 131, the bottom surface of the second slope plate 132 extends obliquely upward in a direction away from the first slope plate 131, the first buffer pad 133 is connected between the top surface of the second slope plate 132 and the inner bottom surface of the upper trough body, and the first buffer pad 133 is connected between the bottom surface of the second slope plate 132 and the inner bottom surface of the lower trough body; a horizontal seismic isolation bearing, which is located on the bottom side of the lower cover plate 120.

[0025] As can be seen from the above, the vertical seismic isolation bearing and the horizontal seismic isolation bearing are stacked and arranged, and the horizontal seismic isolation bearing can be located on the top side of the vertical seismic isolation bearing and on the bottom side of the horizontal seismic isolation bearing. The vertical seismic isolation bearing can effectively attenuate the vertical vibration transmission, and the horizontal seismic isolation bearing can effectively attenuate the horizontal vibration transmission. Among them, in the vertical seismic isolation bearing, the upper cover plate 110 is covered on the lower cover plate 120, and the first buffer pad 133 is arranged on the top surface of the first slope plate 131 and the bottom surface of the first slope plate 131. The two first buffer pads 133 are arranged in an eight-shaped shape rotated 90 degrees. Similarly, the first buffer pad 133 on the top surface of the second slope plate 132 and the first buffer pad 133 on the bottom surface of the second slope plate 132 are arranged in an eight-shaped shape rotated 90 degrees. When the upper When the cover plate 110 and the lower cover plate 120 are subjected to vertical pressure transmission, the pressure is transmitted to the internal seismic isolation assembly, and the inclined first buffer pad 133 undergoes oblique elastic deformation and vertical compression deformation, the first slope plate 131 and the second slope plate 132 move toward each other, and the vertical elastic deformation in the seismic isolation assembly is converted into horizontal displacement of the slope plate, thereby achieving delayed response and buffer transmission to external vertical excitation, thereby achieving vertical seismic isolation. Therefore, the present invention utilizes the inclined first buffer pad 133 to provide a smaller vertical stiffness through oblique compression and shear deformation, so that the vertical vibration transmission is effectively attenuated. Combined with the horizontal seismic isolation of the horizontal seismic isolation support, the peripheral structure connected to the present invention can be protected during horizontal and vertical vibrations, thereby achieving the purpose of three-dimensional seismic isolation.

[0026] The internal structure of the seismic isolation assembly is the first embodiment. Figure 2As shown, this is the second embodiment of the seismic isolation assembly, with the end of the first ramp plate 131 facing the second ramp plate 132 as the head end of the first ramp plate 131, and the end of the first ramp plate 131 away from the second ramp plate 132 as the end of the first ramp plate 131, and the first ramp plates 131 are arranged in a plurality of directions in the vertical direction, and between any two adjacent first ramp plates 131, the head end of one first ramp plate 131 and the end of the other first ramp plate 131 are arranged opposite to each other, and the first buffer pad 133 is arranged between any two adjacent first ramp plates 131, and the second ramp plate 132 faces the end of the first ramp plate 131 is the head end of the second ramp plate 132, and the end of the second ramp plate 132 away from the first ramp plate 131 is the end of the second ramp plate 132. A plurality of second ramp plates 132 are arranged in the up and down directions, and the number of the second ramp plates 132 is equal to the number of the first ramp plates 131. Between any two adjacent second ramp plates 132, the head end of one second ramp plate 132 and the end of the other second ramp plate 132 are arranged opposite to each other. Between any two adjacent second ramp plates 132, the first buffer pad 133 is arranged. A spring 150 is connected between at least one first ramp plate 131 and the second ramp plate 132 opposite to it. Multiple first ramp plates 131 are stacked in the up and down direction, and the head ends and tail ends of two adjacent first ramp plates 131 are staggered with each other, which can better convert vertical vibration into shear deformation of the first buffer pad 133. Similarly, the second ramp plates 132 are arranged in the same way as the first ramp plates 131, and the springs 150 between the first ramp plates 131 and the second ramp plates 132 can play the role of limiting the displacement between the two ramp plates connected thereto, thereby better playing the role of vertical seismic isolation.

[0027] like Figure 3 As shown, as the third embodiment of the seismic isolation assembly, a plurality of the first buffer pads 133 are connected between the top surface of the first ramp plate 131 and the inner bottom surface of the upper trough body, a plurality of the first buffer pads 133 are connected between the bottom surface of the first ramp plate 131 and the inner bottom surface of the lower trough body, a plurality of the first buffer pads 133 are connected between the top surface of the second ramp plate 132 and the inner bottom surface of the upper trough body, and a plurality of the first buffer pads 133 are connected between the bottom surface of the second ramp plate 132 and the inner bottom surface of the lower trough body. A plurality of first buffer pads 133 can be arranged between the first ramp plate 131 and the inner bottom surface of the upper trough body and the inner bottom surface of the lower trough body, and a plurality of first buffer pads 133 can also be arranged between the second ramp plate 132 and the inner bottom surface of the upper trough body and the inner bottom surface of the lower trough body, so that vibration is effectively buffered.

[0028] In each embodiment, the seismic isolation assembly can be further expanded as follows: a plurality of seismic isolation assemblies are arranged in a circular array around the center line of the lower tank body. The more seismic isolation assemblies there are, the higher the overall seismic isolation effect is. Therefore, a plurality of seismic isolation assemblies can be arranged in the lower tank body according to the use requirements.

[0029] like Figure 4 As shown in the fourth embodiment of the seismic isolation assembly, a spring 150 is connected between the first ramp 131 and the second ramp 132. The spring 150 can limit the displacement between the two ramps connected thereto, thereby better achieving vertical seismic isolation.

[0030] As a further embodiment of the fourth embodiment, the friction layer 160 is respectively provided at the connection between the first ramp plate 131, the second ramp plate 132 and the first buffer pad 133. The first ramp plate 131 and the second ramp plate 132 can slide relative to the first buffer pad 133 through friction, so as to better offset the vibration converted from vertical to horizontal and improve the seismic isolation effect. In actual use, the friction layer 160 can be a plate with a rough surface, such as a frosted plate.

[0031] In order to further increase the overall structural stability after the upper cover plate 110 is covered on the lower cover plate 120, a second buffer pad 140 is connected between the inner wall of the upper tank body and the outer wall of the lower cover plate 120. The second buffer pad 140 can reduce the instability of the upper cover plate 110 and the lower cover plate 120 due to collision and swinging during movement.

[0032] As a specific embodiment of the horizontal seismic isolation bearing, the horizontal seismic isolation bearing includes an elastic seat 210, a support plate 220 and a mounting plate 230. The mounting plate 230 is arranged on the top surface of the elastic seat 210 and the bottom surface of the elastic seat 210. The mounting plate 230 is connected to the top side of the upper cover plate 110 or the bottom side of the lower cover plate 120. A plurality of support plates 220 are arranged in a vertically spaced arrangement in the elastic seat 210. The support plates 220 in the horizontal seismic isolation bearing can provide a supporting force in the vertical direction, and a spacing is provided between two adjacent support plates 220, so that the support plates 220 can provide a supporting force in the vertical direction and can be staggered to better offset the vibration in the horizontal direction.

[0033] As a further embodiment of the horizontal seismic isolation support, the horizontal seismic isolation support further includes a support column 240, a through channel is provided in the elastic seat 210 along the vertical direction, a clearance hole is provided at a position of the support plate 220 facing the through channel, and the support column 240 passes through the through channel and the clearance hole. Adding the support column 240 can better improve the vertical support force of the elastic seat 210, so as to better control the overall deformation of the elastic seat 210.

[0034] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A three-dimensional seismic isolation bearing, characterized in that: include: A vertical seismic isolation support, comprising an upper cover plate (110), a lower cover plate (120), and a seismic isolation assembly, wherein the bottom surface of the upper cover plate (110) is arched upward to form an upper trough body, the top surface of the lower cover plate (120) is recessed downward to form a lower trough body, the top of the lower cover plate (120) extends into the upper trough body, the seismic isolation assembly is located in the lower trough body, the seismic isolation assembly comprises a first ramp plate (131), a second ramp plate (132), and a first buffer pad (133), the first ramp plate (131) and the second ramp plate (132) are arranged side by side in the lower trough body in a horizontal direction, the top surface of the first ramp plate (131) extends obliquely downward in a direction away from the second ramp plate (132), and the bottom surface of the first ramp plate (131) extends in a direction away from the second ramp plate (132). 32), the first buffer pad (133) is connected between the top surface of the first ramp plate (131) and the inner bottom surface of the upper trough body, the first buffer pad (133) is connected between the bottom surface of the first ramp plate (131) and the inner bottom surface of the lower trough body, the top surface of the second ramp plate (132) is extended obliquely downward in a direction away from the first ramp plate (131), the bottom surface of the second ramp plate (132) is extended obliquely upward in a direction away from the first ramp plate (131), the top surface of the second ramp plate (132) is connected to the inner bottom surface of the upper trough body, and the first buffer pad (133) is connected between the bottom surface of the second ramp plate (132) and the inner bottom surface of the lower trough body; A horizontal seismic isolation support is located on the bottom side of the lower cover plate (120).

2. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: The end of the first ramp plate (131) facing the second ramp plate (132) is the head end of the first ramp plate (131), and the end of the first ramp plate (131) away from the second ramp plate (132) is the end of the first ramp plate (131). A plurality of first ramp plates (131) are arranged in the up-down direction. Between any two adjacent first ramp plates (131), the head end of one first ramp plate (131) and the end of the other first ramp plate (131) are arranged facing each other. Between any two adjacent first ramp plates (131), a first buffer pad (133) is arranged. The end of the second ramp plate (132) facing the first ramp plate (131) is the second ramp plate (13 2), one end of the second ramp plate (132) away from the first ramp plate (131) is the end of the second ramp plate (132), a plurality of second ramp plates (132) are arranged in the up-down direction, the number of the second ramp plates (132) is equal to the number of the first ramp plates (131), between any two adjacent second ramp plates (132), the head end of one second ramp plate (132) and the end of the other second ramp plate (132) are arranged opposite to each other, between any two adjacent second ramp plates (132) a first buffer pad (133) is arranged, and a spring (150) is connected between at least one of the first ramp plates (131) and the second ramp plate (132) opposite to it.

3. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: A plurality of the first buffer pads (133) are connected between the top surface of the first ramp plate (131) and the inner bottom surface of the upper trough body, a plurality of the first buffer pads (133) are connected between the bottom surface of the first ramp plate (131) and the inner bottom surface of the lower trough body, a plurality of the first buffer pads (133) are connected between the top surface of the second ramp plate (132) and the inner bottom surface of the upper trough body, and a plurality of the first buffer pads (133) are connected between the bottom surface of the second ramp plate (132) and the inner bottom surface of the lower trough body.

4. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: The seismic isolation components are arranged in a plurality of circular arrays around the center line of the lower tank.

5. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: A spring (150) is connected between the first ramp plate (131) and the second ramp plate (132).

6. The three-dimensional seismic isolation bearing according to claim 5, characterized in that: Friction layers (160) are respectively provided at the connection points between the first ramp plate (131), the second ramp plate (132) and the first buffer pad (133).

7. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: A second buffer pad (140) is connected between the inner side wall of the upper trough body and the outer side wall of the lower cover plate (120).

8. The three-dimensional seismic isolation bearing according to claim 1, characterized in that: The horizontal seismic isolation support comprises an elastic seat (210), a support plate (220) and a mounting plate (230); the mounting plate (230) is arranged on the top surface of the elastic seat (210) and the bottom surface of the elastic seat (210); the mounting plate (230) is connected to the top side of the upper cover plate (110) or the bottom side of the lower cover plate (120); and a plurality of support plates (220) are arranged in an interval arrangement in the elastic seat (210) along the vertical direction.

9. The three-dimensional seismic isolation bearing according to claim 8, characterized in that: The horizontal seismic isolation support further comprises a support column (240), a through channel is provided in the elastic seat (210) along the vertical direction, a clearance hole is provided at a position of the support plate (220) facing the through channel, and the support column (240) passes through the through channel and the clearance hole.

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