Tensile shock insulation support

Abstract

The utility model discloses a tensile shock insulation support, which relates to the technical field of shock insulation devices and comprises an upper connecting plate and a lower connecting plate which are arranged at intervals. The rubber shock insulation support is arranged between the upper connecting plate and the lower connecting plate, and the upper end and the lower end of the rubber shock insulation support are connected with the upper connecting plate and the lower connecting plate respectively; the multiple tensile devices are evenly distributed on the periphery of the rubber shock insulation support, the upper ends of the tensile devices are connected with the upper connecting plate, the lower ends of the tensile devices are connected with the lower connecting plate through connecting pieces, and gaps exist between the lower ends of the tensile devices and the lower connecting plate so that the tensile devices can vertically slide along the connecting pieces; and the plurality of tensile devices can allow the upper connecting plate and the lower connecting plate to relatively slide in the X direction and the Y direction of the horizontal plane. According to the tensile shock insulation support, the gap is formed between the lower end of the tensile device and the lower connecting plate, when the tensile shock insulation support bears vertical pressure to be compressed and deformed, the gap is reduced, the tensile device cannot be pressed, and sliding smoothness of the tensile device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of seismic isolation device technology, and more specifically to a tensile seismic isolation bearing. Background Technology

[0002] Currently, rubber seismic isolation bearings are characterized by high vertical bearing capacity, low horizontal stiffness, and a large allowable horizontal displacement. They can reduce both horizontal and vertical seismic forces and are widely used in engineering projects. The height of a rubber seismic isolation bearing changes under pressure and tension. The deformation of the bearing under compression is related to its vertical stiffness; under tension, the tensile force is no greater than 1.5 MPa, indicating poor tensile strength. When the tensile force exceeds the bearing's ultimate tensile strength, the bearing will fail. Therefore, adding tensile-resistant devices around the rubber seismic isolation bearing or on its own structure can effectively protect the stability of the bearing structure.

[0003] However, existing tensile testing devices lack gaps to accommodate the vertical compression deformation of rubber seismic isolation bearings, resulting in excessive pressure on the tensile testing device and affecting its sliding function. Tensile testing devices are mostly rigid components; without buffering under tension and compression, they can cause steel components to collide, easily leading to sliding obstruction and device jamming, affecting the lifespan and structural stability of the tensile testing device. Excessive clearance between sliding mating surfaces in the tensile testing device, or the absence of friction pairs resulting in high sliding friction resistance, can cause torsion of the tensile testing device if the force is uneven, leading to sliding obstruction and damage. Furthermore, the actual height of rubber seismic isolation bearings varies during production, meaning the designed vertical compression of the tensile testing device cannot fully accommodate it. Utility Model Content

[0004] In view of this, the present invention provides a tensile seismic isolation bearing, which aims to solve one of the problems in the above-mentioned background art, and to solve the problem of poor sliding of the tensile device when the existing tensile device is used in conjunction with the rubber seismic isolation bearing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a tensile seismic isolation bearing, comprising:

[0007] The upper and lower connecting plates are spaced apart;

[0008] A rubber seismic isolation bearing is disposed between the upper connecting plate and the lower connecting plate, and the upper and lower ends of the rubber seismic isolation bearing are respectively connected to the upper connecting plate and the lower connecting plate;

[0009] A tensile device is provided, and multiple tensile devices are evenly distributed around the rubber vibration isolation bearing. The upper end of the tensile device is connected to the upper connecting plate, and the lower end of the tensile device is connected to the lower connecting plate through a connector. There is a gap between the lower end of the tensile device and the lower connecting plate so that the tensile device can slide vertically along the connector. The multiple tensile devices allow the upper connecting plate and the lower connecting plate to slide relative to each other in the X and Y directions of the horizontal plane.

[0010] According to the tensile isolation bearing provided by this utility model, the tensile device includes an upper slide rail, a tensile buckle, and a lower slide rail;

[0011] The upper slide rail is connected to the upper connecting plate;

[0012] The lower slide rail is connected to the lower connecting plate via the connector, and the lower slide rail and the upper slide rail are arranged perpendicularly.

[0013] The upper and lower surfaces of the anti-tension buckle are respectively provided with limiting grooves that cooperate with the upper slide rail and the lower slide rail;

[0014] The anti-tension buckle can slide along the upper and lower slide rails to enable the upper connecting plate and the lower connecting plate to slide relative to each other in the X and Y directions of the horizontal plane.

[0015] According to the tensile isolation bearing provided by this utility model, four tensile devices are provided.

[0016] According to the tensile isolation bearing provided by this utility model, the opening of the limiting groove is a reduced diameter structure.

[0017] According to the tensile isolation bearing provided by this utility model, both the upper slide rail and the lower slide rail are provided with friction pairs at the contact surfaces with the limiting slide groove.

[0018] According to the tensile isolation bearing provided by this utility model, the connecting member includes a fastening bolt and a disc spring. The lower slide rail is connected to the lower connecting plate through the fastening bolt. The disc spring is sleeved between the nut of the fastening bolt and the lower slide rail. There is a gap between the lower slide rail and the lower connecting plate.

[0019] According to the tensile isolation bearing provided by this utility model, a boss is provided at the bottom of the lower slide rail, and a limiting hole adapted to the boss is provided on the lower connecting plate. When the lower slide rail slides vertically along the fastening bolt, the boss slides vertically in the limiting hole.

[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a tensile isolation bearing. By setting tensile devices around the rubber isolation bearing, and setting a gap between the lower end of the tensile device and the lower connecting plate, the tensile isolation bearing will undergo vertical deformation and a certain amount of vertical compression when subjected to vertical pressure. This can easily lead to pressure on the sliding part of the tensile device, affecting the normal sliding of the tensile device. Therefore, by setting a gap between the lower end of the tensile device and the lower connecting plate, when the tensile isolation bearing is subjected to vertical pressure compression deformation, this gap is reduced, and the tensile device will not be compressed, ensuring that the tensile device slides normally in the X and Y directions of the horizontal plane, thereby ensuring the smoothness of the sliding of the tensile device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of the tensile isolation bearing provided by this utility model;

[0023] Figure 2 A top view of the tensile isolation bearing provided by this utility model;

[0024] Figure 3 A schematic diagram of the tensile device provided by this utility model;

[0025] Figure 4 The front view of the anti-tension buckle provided by this utility model;

[0026] Figure 5 The left view of the anti-tension buckle provided by this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the lower slide rail and the lower connecting plate provided by this utility model.

[0028] In the diagram: 1 is the upper connecting plate; 2 is the tensile device; 21 is the upper slide rail; 22 is the tensile buckle; 23 is the lower slide rail; 3 is the rubber vibration isolation bearing; 4 is the lower connecting plate; 5 is the fastening bolt; and 6 is the disc spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figure 1-6 This utility model discloses a tensile seismic isolation bearing, including: an upper connecting plate 1, a lower connecting plate 4, a rubber seismic isolation bearing 3, and a tensile device 2.

[0031] Both the upper connecting plate 1 and the lower connecting plate 4 are horizontally positioned and are spaced a certain distance apart from each other.

[0032] The rubber seismic isolation bearing 3 is disposed between the upper connecting plate 1 and the lower connecting plate 4, and the upper and lower ends of the rubber seismic isolation bearing 3 are connected to the upper connecting plate 1 and the lower connecting plate 4 respectively. The rubber seismic isolation bearing 3 adopts the structure of the existing rubber seismic isolation bearing 3. When the rubber seismic isolation bearing 3 is subjected to vertical pressure, it will produce vertical deformation and has a certain amount of vertical compression.

[0033] Multiple tensile devices 2 are provided. In this embodiment, preferably, four tensile devices 2 are provided. The four tensile devices 2 are evenly distributed around the rubber vibration isolation bearing 3, that is, the four tensile devices 2 are distributed in a rectangular shape. The upper end of the tensile device 2 is connected to the upper connecting plate 1, and the lower end of the tensile device 2 is connected to the lower connecting plate 4 through a connector. There is a gap between the lower end of the tensile device 2 and the lower connecting plate 4 so that the tensile device 2 can slide vertically along the connector. The four tensile devices 2 allow the upper connecting plate 1 and the lower connecting plate 4 to slide relative to each other in the X and Y directions of the horizontal plane. That is, the four tensile devices 2 can work together to provide relative sliding between the upper connecting plate 1 and the lower connecting plate 4 in the X and Y directions on the horizontal plane. In other embodiments, six or eight tensile devices 2 can also be used. When six tensile devices 2 are used, they can be arranged in two rows and three columns to provide relative sliding between the upper connecting plate 1 and the lower connecting plate 4 in the X and Y directions on the horizontal plane. When eight tensile devices 2 are used, they can be arranged in two rows and four columns, which also provides relative sliding between the upper connecting plate 1 and the lower connecting plate 4 in the X and Y directions on the horizontal plane. In other embodiments, the number and position of the tensile devices 2 can be arranged according to actual needs, as long as the arrangement of multiple tensile devices 2 can provide relative sliding between the upper connecting plate 1 and the lower connecting plate 4 in the X and Y directions on the horizontal plane.

[0034] It should be noted that, by setting tensile devices 2 around the rubber seismic isolation bearing 3, and setting a gap between the lower end of the tensile device 2 and the lower connecting plate 4, the tensile seismic isolation bearing will undergo vertical deformation and a certain amount of vertical compression when subjected to vertical pressure. This can easily lead to pressure on the sliding part of the tensile device 2, affecting the normal sliding of the tensile device 2. Therefore, by setting a gap between the lower end of the tensile device 2 and the lower connecting plate 4, when the tensile seismic isolation bearing is subjected to vertical pressure compression deformation, this gap is reduced, and the tensile device 2 will not be compressed, ensuring that the tensile device 2 slides normally in the X and Y directions of the horizontal plane, and ensuring the smoothness of the sliding of the tensile device 2.

[0035] In a further embodiment, the tensile device 2 includes an upper slide rail 21, a tensile buckle 22, and a lower slide rail 23;

[0036] The upper slide rail 21 is connected to the upper connecting plate 1;

[0037] The lower slide rail 23 is connected to the lower connecting plate 4 via a connector, and the lower slide rail 23 and the upper slide rail 21 are arranged perpendicularly.

[0038] The upper and lower surfaces of the anti-tension buckle 22 are respectively provided with limiting grooves that cooperate with the upper slide rail 21 and the lower slide rail 23;

[0039] Among them, the anti-tensile buckle 22 can slide along the upper slide rail 21 and the lower slide rail 23 to realize the relative sliding of the upper connecting plate 1 and the lower connecting plate 4 in the X and Y directions of the horizontal plane.

[0040] It should be noted that the openings of the limiting slide grooves are all of reduced diameter. The upper slide rail 21 is fixedly connected to the upper connecting plate 1. The limiting slide groove at the top of the anti-tensile buckle 22 is slidably mounted on the upper slide rail 21. Connecting ear plates are provided on both sides of the lower end of the lower slide rail 23. The connecting ear plates are provided with through holes. The lower end of the connector passes through the through holes and connects to the lower connecting plate 4. The limiting slide groove at the bottom of the anti-tensile buckle 22 is slidably mounted on the lower slide rail 23. In the natural state, when the limiting slide groove at the bottom of the anti-tensile buckle 22 slides in conjunction with the lower slide rail 23, the lower slide rail 23... There is a gap between the bottom of the bearing and the lower connecting plate 4. With this setting, after the tensile isolation bearing is installed, when the tensile isolation bearing undergoes shear displacement, the tensile buckle 22 can slide along the upper slide rail 21 or the lower slide rail 23. When the tensile isolation bearing is under compression, the gap between the lower slide rail 23 and the lower connecting plate 4 is reduced, and the upper slide rail 21, tensile buckle 22 and lower slide rail 23 in the tensile device 2 are not under compressive force and can slide normally. When the tensile isolation bearing is under tension, the tensile device 2 shares the tension and avoids the rubber isolation bearing 3 from being damaged by tension.

[0041] In a further embodiment, friction pairs are provided at the contact surfaces of the upper slide rail 21 and the lower slide rail 23 with the limiting slide groove. Specifically, the friction pair is composed of a mirror stainless steel plate and an SF-1 composite plate. One of the mirror stainless steel plate and the SF-1 composite plate is disposed on the upper slide rail 21 and the lower slide rail 23, and the other is disposed in the limiting slide groove. By setting the friction pair, the frictional resistance when the tensile device 2 is displaced is reduced.

[0042] In a further embodiment, the connecting component includes a fastening bolt 5 and a disc spring 6. The lower slide rail 23 is connected to the lower connecting plate 4 via the fastening bolt 5. The disc spring 6 is sleeved between the nut of the fastening bolt 5 and the lower slide rail 23, and there is a gap between the lower slide rail 23 and the lower connecting plate 4. Specifically, the lower connecting plate 4 is provided with threaded holes. The fastening bolt 5 passes through the through holes on the connecting ear plates on both sides of the lower end of the lower slide rail 23 and is threadedly connected to the threaded holes on the lower connecting plate 4. The disc spring 6 is sleeved between the nut of the fastening bolt 5 and the lower slide rail 23. With this arrangement, when the tensile device 2 is under tension, the lower slide rail 23 moves upward, and the disc spring 6 is compressed. Due to the inherent characteristics of the disc spring 6, it plays a buffering role when the tensile isolation support is under tension, avoiding the problem of excessive impact force when the lower slide rail 23 moves upward, protecting the friction pair from impact, and ensuring the stability of the tensile device 2.

[0043] In a further embodiment, a boss is provided at the bottom of the lower slide rail 23, and a limiting hole adapted to the boss is provided on the lower connecting plate 4. When the lower slide rail 23 slides vertically along the fastening bolt 5, the boss slides vertically within the limiting hole. With this configuration, the boss at the bottom of the lower slide rail 23 and the limiting hole on the lower connecting plate 4 are tightly fitted, ensuring that the lower slide rail 23 will not move relative to the lower connecting plate 4, but only ensures that the lower slide rail 23 slides vertically along the axial direction of the fastening bolt 5.

[0044] The tensile isolation bearing of this invention, when under tension, has the tensile device 2 sharing the tensile force, ensuring the structural stability of the bearing body. When under compression, the tensile device 2 is separated from the lower connecting plate 4 by a gap, preventing the tensile device 2 from being stressed and allowing it to slide normally with the bearing. Regardless of whether the bearing is under compression or tension, the tensile device 2 remains structurally stable, operates smoothly, and does not suffer damage during displacement. Furthermore, when under tension, the disc spring 6 at the fastening bolt 5 acts as a buffer, minimizing the impact force on the tensile device 2 and preventing damage to the friction pair. The friction pair on the sliding contact surface of the tensile device 2 further ensures structural stability.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tensile seismic isolation bearing, characterized in that, include: The upper and lower connecting plates are spaced apart; A rubber seismic isolation bearing is disposed between the upper connecting plate and the lower connecting plate, and the upper and lower ends of the rubber seismic isolation bearing are respectively connected to the upper connecting plate and the lower connecting plate; A tensile device is provided, and multiple tensile devices are evenly distributed around the rubber vibration isolation bearing. The upper end of the tensile device is connected to the upper connecting plate, and the lower end of the tensile device is connected to the lower connecting plate through a connector. There is a gap between the lower end of the tensile device and the lower connecting plate so that the tensile device can slide vertically along the connector. The multiple tensile devices allow the upper connecting plate and the lower connecting plate to slide relative to each other in the X and Y directions of the horizontal plane.

2. The tensile isolation bearing according to claim 1, characterized in that, The tensile device includes an upper slide rail, a tensile buckle, and a lower slide rail; The upper slide rail is connected to the upper connecting plate; The lower slide rail is connected to the lower connecting plate via the connector, and the lower slide rail and the upper slide rail are arranged perpendicularly. The upper and lower surfaces of the anti-tension buckle are respectively provided with limiting grooves that cooperate with the upper slide rail and the lower slide rail; The anti-tension buckle can slide along the upper and lower slide rails to enable the upper connecting plate and the lower connecting plate to slide relative to each other in the X and Y directions of the horizontal plane.

3. The tensile isolation bearing according to claim 2, characterized in that, The tensile device is provided in four parts.

4. The tensile seismic isolation bearing according to claim 2, characterized in that, The openings of the limiting slides are all narrow-diameter structures.

5. The tensile seismic isolation bearing according to claim 2, characterized in that, Both the upper and lower slide rails have friction pairs at their contact surfaces with the limiting slide groove.

6. The tensile seismic isolation bearing according to any one of claims 2-5, characterized in that, The connector includes a fastening bolt and a disc spring. The lower slide rail is connected to the lower connecting plate through the fastening bolt. The disc spring is sleeved between the nut of the fastening bolt and the lower slide rail. There is a gap between the lower slide rail and the lower connecting plate.

7. The tensile seismic isolation bearing according to claim 6, characterized in that, The bottom of the lower slide rail is provided with a boss, and the lower connecting plate is provided with a limiting hole adapted to the boss. When the lower slide rail slides vertically along the fastening bolt, the boss slides vertically within the limiting hole.

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