Shock insulation tensile support

Abstract

The utility model relates to the technical field of building shock insulation, in particular to a shock insulation tensile support which comprises a base, a supporting plate, a top plate and a buffering assembly and is characterized in that the base is located below the supporting plate, the top plate is located above the supporting plate, and the base and the supporting plate are movably connected through the buffering assembly. The supporting plate and the top plate are movably connected through a buffering assembly, and the buffering assembly between the base and the supporting plate is perpendicular to the buffering assembly between the supporting plate and the top plate. The advantages are as follows: after being subjected to a vibration force, the spring in the buffer assembly is mainly used for damping and buffering, and the spring has a larger elastic deformation range compared with an SMA stranded wire, so that the spring is not easy to damage under a strong vibration condition, and the reliability is improved; and the first rubber limiting seat and the second rubber limiting seat can support the supporting plate and the top plate correspondingly, so that the supporting force is enhanced, and the higher seismic isolation and tensile requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of building seismic isolation, in particular to a seismic isolation tensile support. Background Art

[0002] Newly built schools, kindergartens and other buildings located in high-intensity fortification areas and earthquake-focused monitoring and defense areas should adopt seismic isolation and shock absorption technologies in accordance with relevant national regulations to ensure that they can meet normal use requirements when an earthquake occurs in the area. In seismic isolation construction projects, seismic isolation tensile bearings are usually required.

[0003] A novel self-resetting three-dimensional seismic isolation and tensile bearing disclosed in Chinese patent CN216475687U can not only reduce horizontal earthquake action and response, but also reduce vertical earthquake action and response, and can meet the requirements of horizontal displacement reset, three-way seismic isolation and vertical tensile performance. However, while solving the problem, the novel self-resetting three-dimensional seismic isolation and tensile bearing has the following defects:

[0004] The laminated rubber bearing is used to resist horizontal vibrations, and then the tensioning force of the second SMA strand is used to provide a self-resetting function. However, the deformation that the strand can produce when subjected to tension is very limited. Therefore, during a strong earthquake, the second SMA strand is prone to breakage due to excessive tension, resulting in a decrease in the performance of the self-resetting function, affecting normal use and poor reliability. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] To this end, one purpose of the utility model is to propose a seismic isolation and tensile bearing, which aims to solve the problem of poor reliability of the new self-resetting three-dimensional seismic isolation and tensile bearing in the prior art, which is prone to breakage of the second SMA strand due to excessive tension during strong earthquakes.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one aspect provides a seismic isolation and tensile bearing, comprising a base, a support plate, a top plate and a buffer assembly, wherein the base is located below the support plate, the top plate is located above the support plate, the base and the support plate are movably connected via the buffer assembly, the support plate and the top plate are movably connected via the buffer assembly, and the buffer assembly between the base and the support plate and the buffer assembly between the support plate and the top plate are perpendicular to each other;

[0008] The buffer assembly comprises two sleeves and two piston rods. The two sleeves are arranged crosswise in an X shape. A spring is inserted into the interior of the sleeve, and the piston rod is slidably inserted into the interior of the sleeve.

[0009] Preferably, any of the above schemes has a first rubber limit seat fixedly connected to the top of the base, and a second rubber limit seat fixedly connected to the top of the support plate, which provides limit support and has a certain buffering capacity to prevent the support plate or the top plate from descending too much.

[0010] Preferably, the top of the first rubber limit seat is fixedly connected to a first slide plate, and the top of the second rubber limit seat is fixedly connected to a second slide plate. The first slide plate and the second slide plate are both made of polytetrafluoroethylene, which has a low friction coefficient and can play a lubricating role.

[0011] Preferably, any of the above schemes comprises a bottom plate, vertical plates are fixedly connected to both sides of the top of the bottom plate, and a horizontal plate is fixedly connected to the top of the vertical plate, which can reduce the height of the entire support to a certain extent, thereby lowering the center of gravity and improving stability.

[0012] Preferably, a reinforcement plate is fixedly connected between the two vertical plates to reinforce the two vertical plates and improve firmness.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] 1. When subjected to vibration force, the spring in the buffer assembly is mainly used for shock absorption and buffering. The spring has a larger elastic deformation range than the SMA stranded wire, so it is not easy to be damaged in strong earthquake conditions, thereby improving reliability.

[0015] 2. When the vibration intensity is large and the support plate and the top plate float up and down greatly, after the support plate and the top plate drop to a certain height, the first rubber limit seat and the second rubber limit seat will support the support plate and the top plate respectively to strengthen the supporting force and provide two-level seismic isolation and tensile resistance, thereby meeting higher seismic isolation and tensile resistance requirements and being suitable for high-intensity fortification areas.

[0016] 3. The slide plate made of polytetrafluoroethylene has the advantage of low friction, so when the support plate and the top plate descend and contact the first slide plate and the second slide plate, it can ensure that the support plate and the top plate can move smoothly in the horizontal direction, thereby isolating the vibration force in the horizontal direction.

[0017] 4. The middle part of the support plate is concave downward, so that the height of the support can be reduced, thereby lowering the center of gravity and improving stability. A reinforcement plate is provided between the two vertical plates to reinforce the vertical plate and the bottom plate to avoid the problem of overall deformation of the support plate due to stress.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram according to the utility model.

[0021] Figure 2 It is a structural schematic diagram of the base according to the utility model.

[0022] Figure 3 It is a structural schematic diagram of a buffer component according to the utility model.

[0023] Figure 4 It is a schematic diagram of the structure inside the sleeve according to the utility model.

[0024] Figure 5 It is a structural schematic diagram of a support plate according to the utility model.

[0025] Wherein: 1. base, 11. first positioning sleeve, 2. support plate, 21. third positioning sleeve, 22. bottom plate, 23. vertical plate, 24. horizontal plate, 25. reinforcement plate, 3. top plate, 31. second positioning sleeve, 4. buffer assembly, 41. sleeve, 42. spring, 43. piston rod, 44. connecting block, 5. first rubber limit seat, 51. first slide plate, 6. second rubber limit seat, 61. second slide plate. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model provides a seismic isolation and tensile resistance support.

[0029] Embodiment 1:

[0030] like Figure 1-4As shown, it includes a base 1, a support plate 2, a top plate 3 and a buffer assembly 4, the base 1 is located below the support plate 2, the top plate 3 is located above the support plate 2, the base 1 and the support plate 2 are movably connected through the buffer assembly 4, the buffer assembly 4 between the base 1 and the support plate 2 buffers the vibration force in the vertical direction and the left and right directions, the support plate 2 and the top plate 3 are movably connected through the buffer assembly 4, and the buffer assembly 4 between the base 1 and the support plate 2 and the buffer assembly 4 between the support plate 2 and the top plate 3 are perpendicular to each other, the buffer assembly 4 between the support plate 2 and the top plate 3 buffers the vibration force in the vertical direction and the front and rear directions, so that the cooperation of the buffer assembly 4 between the base 1 and the support plate 2 and the buffer assembly 4 between the support plate 2 and the top plate 3 can buffer the vibration force in the vertical direction and the horizontal direction;

[0031] like Figure 3 and Figure 4 As shown, the buffer assembly 4 includes two sleeves 41 and two piston rods 43. The two sleeves 41 are arranged in an X shape. A spring 42 is inserted into the interior of the sleeve 41. The piston rod 43 is slidably inserted into the interior of the sleeve 41. When the piston rod 43 is subjected to force, it slides inside the sleeve 41, thereby compressing the spring 42. The spring 42 supports the piston rod 43, so that when the force on the piston rod 43 is reduced, the spring 42 rebounds and pushes the piston rod 43 to reset.

[0032] Specifically, the top of the base 1 is fixedly connected with a first positioning sleeve 11, the bottom of the top plate 3 is fixedly connected with a second positioning sleeve 31, and the position on the support plate 2 corresponding to the first positioning sleeve 11 and the second positioning sleeve 31 is fixedly connected with a third positioning sleeve 21. The bottom end of the sleeve 41 and the top end of the piston rod 43 are fixedly connected with a connecting block 44. The connecting blocks 44 at the ends of the sleeve 41 and the piston rod 43 are used to be hinged with the first positioning sleeve 11 or the second positioning sleeve 31 or the third positioning sleeve 21, so as to achieve the purpose of the base 1 of the buffer assembly 4 and the support plate 2 being movably connected through the buffer assembly 4, and the support plate 2 and the top plate 3 being movably connected through the buffer assembly 4.

[0033] Embodiment 2:

[0034] like Figure 1-2As shown, on the basis of Example 1, the top of the base 1 is fixedly connected with a first rubber limit seat 5, and the top of the support plate 2 is fixedly connected with a second rubber limit seat 6. When the vibration intensity is large, the spring 42 may be compressed to the limit. Once the spring 42 is compressed to the limit, it loses the buffering and seismic isolation function. The first rubber limit seat 5 and the second rubber limit seat 6 have a certain elasticity. Therefore, when the vibration intensity is large and the support plate 2 and the top plate 3 float up and down greatly, after the support plate 2 and the top plate 3 drop to a certain height, the first rubber limit seat 5 and the second rubber limit seat 6 will respectively support the support plate 2 and the top plate 3, strengthen the supporting force, reduce the deformation of the support due to the vibration force, and avoid the problem that the spring 42 is compressed to the limit and loses the buffering and seismic isolation effect. The two-stage seismic isolation and tensile resistance can meet higher seismic isolation and tensile resistance requirements and is suitable for high-intensity fortification areas.

[0035] Specifically, the top of the first rubber limit seat 5 is fixedly connected to the first slide plate 51, and the top of the second rubber limit seat 6 is fixedly connected to the second slide plate 61. The materials of the first slide plate 51 and the second slide plate 61 are both polytetrafluoroethylene. The slide plates made of polytetrafluoroethylene have the advantage of low friction. Therefore, when the support plate 2 and the top plate 3 descend and contact the first slide plate 51 and the second slide plate 61, the friction between the first slide plate 51 and the support plate 2 is small, and the friction between the second slide plate 61 and the top plate 3 is small. Therefore, it can be ensured that the support plate 2 and the top plate 3 can move smoothly in the horizontal direction, thereby isolating the vibration force in the horizontal direction.

[0036] Embodiment three:

[0037] like Figure 1 and Figure 5 As shown, on the basis of Example 1 or Example 2, since the two sleeves 41 and the piston rod 43 of the buffer assembly 4 are X-shaped and have a certain height, the distance between the top and bottom ends of the buffer assembly 4 is relatively large. The support plate 2 includes a bottom plate 22, and the two sides of the top of the bottom plate 22 are fixedly connected with vertical plates 23, and the top of the vertical plates 23 is fixedly connected with a horizontal plate 24. The middle part of the support plate 2 is recessed downward, so that the height of the support can be reduced, thereby lowering the center of gravity and improving stability.

[0038] Specifically, Figure 5 As shown, a reinforcing plate 25 is fixedly connected between the two vertical plates 23. When the vibration force is large, the bottom plate 22 is easily deformed, resulting in a reduction in the distance between the two vertical plates 23. The two vertical plates 23 are supported by the reinforcing plate 25, thereby limiting the distance between the two vertical plates 23, and reinforcing the bottom plate 22 to avoid deformation of the bottom plate 22 due to large vibration force.

[0039] The working principle of the utility model is as follows: when in use, the base 1 and the top plate 3 are respectively connected to the lower structure and the upper structure of the seismic isolation building. When an earthquake occurs, the building is subjected to the vibration force. As the vibration force changes, the piston rod 43 slides in the sleeve 41, and the spring 42 compresses or rebounds, thereby achieving the purpose of seismic isolation and tensile resistance. When the vibration force is large, the support plate 2 and the top plate 3 drop to a certain extent and then contact the first rubber limit seat 5 and the second rubber limit seat 6 respectively. The elasticity of the rubber limit seat itself provides the second level of seismic isolation support for the support plate 2 and the top plate 3, and cooperates with the buffer assembly 4 to provide two-level support, thereby reducing the degree of descent of the support plate 2 and the top plate 3, and avoiding the problem that the spring 42 in the buffer assembly 4 is compressed to the limit and loses the seismic isolation and tensile resistance effect.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. The buffer assembly 4 between the base 1 and the support plate 2, and the buffer assembly 4 between the support plate 2 and the top plate 3 are used for seismic isolation and tensile resistance against vibration force. When subjected to vibration force, the spring 42 in the buffer assembly 4 is mainly used for shock absorption and buffering. The spring 42 has a larger elastic deformation range than the SMA stranded wire, so it is not easy to be damaged in the case of strong earthquake, thereby improving reliability.

[0042] 2. By arranging a first rubber limit seat 5 above the base 1 and a second rubber limit seat 6 above the support plate 2, when the vibration intensity is large and the support plate 2 and the top plate 3 float up and down greatly, after the support plate 2 and the top plate 3 drop to a certain height, the first rubber limit seat 5 and the second rubber limit seat 6 will respectively support the support plate 2 and the top plate 3, thereby strengthening the supporting force, reducing the deformation of the support caused by the vibration force, and avoiding the problem that the spring 42 is compressed to the limit and loses the buffering and seismic isolation effect. The two-level seismic isolation and tensile resistance can meet higher seismic isolation and tensile resistance requirements and is suitable for high-intensity fortification areas.

[0043] 3. By respectively arranging the first slide plate 51 and the second slide plate 61 made of polytetrafluoroethylene on the first rubber limit seat 5 and the second rubber limit seat 6, the slide plate made of polytetrafluoroethylene has the advantage of low friction. Therefore, when the support plate 2 and the top plate 3 descend and contact the first slide plate 51 and the second slide plate 61, the friction between the first slide plate 51 and the support plate 2 is small, and the friction between the second slide plate 61 and the top plate 3 is small. Therefore, it can be ensured that the support plate 2 and the top plate 3 can move smoothly in the horizontal direction, thereby isolating the vibration force in the horizontal direction.

[0044] 4. The support plate 2 includes a bottom plate 22, a vertical plate 23 and a horizontal plate 24. The middle part of the whole is concave downward, so that the height of the support can be reduced, thereby lowering the center of gravity and improving stability. A reinforcement plate 25 is arranged between the two vertical plates 23 to reinforce the vertical plates 23 and the bottom plate 22 to avoid the problem of overall deformation of the support plate 2 due to stress.

Claims

1. A seismic isolation and tensile bearing, comprising a base (1), a support plate (2), a top plate (3) and a buffer assembly (4), characterized in that: The base (1) is located below the support plate (2), and the top plate (3) is located above the support plate (2); the base (1) and the support plate (2) are movably connected via a buffer assembly (4); the support plate (2) and the top plate (3) are movably connected via a buffer assembly (4); and the buffer assembly (4) between the base (1) and the support plate (2) and the buffer assembly (4) between the support plate (2) and the top plate (3) are perpendicular to each other; The buffer assembly (4) comprises two sleeves (41) and two piston rods (43), wherein the two sleeves (41) are arranged crosswise in an X shape, a spring (42) is inserted into the interior of the sleeve (41), and the piston rod (43) is slidably inserted into the interior of the sleeve (41).

2. The seismic isolation tensile bearing according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a first positioning sleeve (11), the bottom of the top plate (3) is fixedly connected to a second positioning sleeve (31), a third positioning sleeve (21) is fixedly connected to a position on the support plate (2) corresponding to the first positioning sleeve (11) and the second positioning sleeve (31), and the bottom end of the sleeve (41) and the top end of the piston rod (43) are both fixedly connected to a connecting block (44).

3. The seismic isolation tensile bearing according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a first rubber limit seat (5), and the top of the support plate (2) is fixedly connected to a second rubber limit seat (6).

4. The seismic isolation tensile bearing according to claim 3, characterized in that: The top of the first rubber limit seat (5) is fixedly connected to a first slide plate (51), and the top of the second rubber limit seat (6) is fixedly connected to a second slide plate (61).

5. The seismic isolation tensile bearing according to claim 4, characterized in that: The first slide plate (51) and the second slide plate (61) are both made of polytetrafluoroethylene.

6. The seismic isolation tensile bearing according to claim 1 or 3, characterized in that: The support plate (2) comprises a bottom plate (22), both sides of the top of the bottom plate (22) are fixedly connected with vertical plates (23), and the top of the vertical plates (23) is fixedly connected with a horizontal plate (24).

7. The seismic isolation tensile bearing according to claim 6, characterized in that: A reinforcing plate (25) is fixedly connected between the two vertical plates (23).

Images