Rubber support and three-dimensional shock isolation device using same

Abstract

The utility model discloses a rubber support and a three-dimensional shock isolation device applying the rubber support, the rubber support comprises an upper connecting plate, a lower connecting plate and a support main body, the support main body comprises an upper embedding piece, a middle embedding piece and a lower embedding piece which are rubber pieces respectively; the lower surface of the upper embedding piece is provided with two upper inclined tenon groups which are bilaterally symmetrical and arranged at intervals, and each upper inclined tenon group comprises a plurality of upper inclined tenons; the upper surface of the lower embedding piece is provided with two lower inclined tenon groups which are symmetrical front and back and are arranged at intervals, and each lower inclined tenon group comprises a plurality of lower inclined tenons; the middle embedding piece is provided with upper oblique mortise grooves and lower oblique mortise grooves, the upper oblique tenons are embedded and inserted into the corresponding upper oblique mortise grooves, and the lower oblique tenons are embedded and inserted into the corresponding lower oblique mortise grooves. The rubber support is novel in structural design, and vibration energy in the horizontal direction and the vertical direction can be effectively absorbed; in addition, the three-dimensional shock isolation device has the advantages of being novel in design and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic isolation devices, in particular to a rubber bearing and a three-dimensional seismic isolation device using the rubber bearing. Background Art

[0002] Earthquake is a sudden and extremely destructive natural disaster. In order to reduce the destructive effects of earthquakes, seismic isolation bearings are generally used to achieve the connection between the superstructure and the substructure.

[0003] Among them, the patent number is: ZL202321508847.1, and the patent name is: Chinese utility model patent for three-dimensional seismic isolation / vibration building bearing with horizontal sliding and vertical vibration isolation functions, which includes a horizontal sliding laminated rubber bearing and a vertical vibration isolation annular rubber vibration reduction module (vertical seismic isolation component). The horizontal sliding laminated rubber bearing includes a horizontal sliding pair and a laminated rubber bearing. The horizontal sliding pair is composed of a mirror stainless steel plate at the bottom and a polytetrafluoroethylene plate at the top. The polytetrafluoroethylene plate and the laminated rubber bearing are vulcanized integrally; the laminated rubber bearing is formed by a layer of rubber sheet and a layer of steel plate superimposed on each other and molded and vulcanized.

[0004] It should be pointed out that, for the above-mentioned horizontal sliding laminated rubber bearing, it can effectively isolate the horizontal component of the earthquake, that is, it can absorb the vibration energy in the horizontal direction; however, the horizontal sliding laminated rubber bearing cannot absorb the vibration energy in the vertical direction (vertical) well. In order to meet the overall isolation performance requirements of the isolation device, it is necessary to set up corresponding vertical vibration isolation components, which will significantly increase the complexity of the overall structure of the isolation device. Utility Model Content

[0005] The utility model aims to provide a rubber bearing to address the deficiencies of the prior art. The rubber bearing has a novel structural design and can effectively absorb vibration energy in the horizontal and vertical directions.

[0006] Another object of the utility model is to provide a three-dimensional seismic isolation device in view of the deficiencies in the prior art. The three-dimensional seismic isolation device has a novel design and a simple structure.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0008] A rubber bearing comprises an upper connecting plate and a lower connecting plate, wherein a bearing body is arranged between the upper connecting plate and the lower connecting plate;

[0009] The support body includes three inserts arranged in sequence from top to bottom and are respectively rubber parts, the three inserts are an upper insert, a middle insert and a lower insert, the upper end of the upper insert is connected to the upper connecting plate, and the lower end of the lower insert is connected to the lower connecting plate;

[0010] The lower surface of the upper engaging member is provided with two upper oblique tenon groups which are symmetrical and spaced apart, the upper oblique tenon group on the left side includes a plurality of upper oblique tenons which extend obliquely toward the lower right, and the upper oblique tenon group on the right side includes a plurality of upper oblique tenons which extend obliquely toward the lower left;

[0011] The upper surface of the lower engaging member is provided with two lower oblique tenon groups which are symmetrical and spaced apart from each other, the lower oblique tenon group on the front side includes a plurality of lower oblique tenons which extend obliquely toward the rear and the upper side, and the lower oblique tenon group on the rear side includes a plurality of lower oblique tenons which extend obliquely toward the front and the upper side;

[0012] The upper surface of the middle engaging part is provided with upper oblique mortise grooves corresponding to each upper oblique tenon, and each upper oblique tenon is respectively inserted into the corresponding upper oblique mortise groove; the lower surface of the middle engaging part is provided with lower oblique mortise grooves corresponding to each lower oblique tenon, and each lower oblique tenon is respectively inserted into the corresponding lower oblique mortise groove.

[0013] Wherein, a sliding groove is provided on the upper surface of the lower connecting plate, and the lower end portion of the lower engaging member extends into the sliding groove of the lower connecting plate;

[0014] The sliding groove of the lower connecting plate is filled with granular fillers, and the granular fillers are located between the lower end of the lower engaging piece and the inner wall of the sliding groove.

[0015] The support body is provided with a plurality of axial holes which penetrate the upper insert, the middle insert and the lower insert in sequence from top to bottom. Steel bars are respectively embedded in each axial hole of the support body, and the support body and each steel bar are vulcanized and bonded into one body.

[0016] Wherein, the upper connecting plate is screwed to the upper end portion of the upper engaging member.

[0017] A three-dimensional seismic isolation device includes a rubber bearing installed between an upper foundation and a lower foundation when in use, characterized in that the rubber bearing is the above-mentioned rubber bearing;

[0018] The upper connection part of the rubber bearing is screwed to the upper foundation, and the lower connection plate of the rubber bearing is screwed to the lower foundation.

[0019] Among them, a plurality of friction pendulum seismic isolation components distributed in a ring array around the rubber bearing are installed between the upper foundation and the lower foundation.

[0020] Wherein, the friction pendulum seismic isolation assembly comprises an upper limit rod screwed to the upper foundation and a lower limit rod screwed to the lower foundation;

[0021] A hemispherical support in the shape of a semi-sphere is screwed on the lower end of the upper limit rod, and a spherical groove opening upward is formed on the upper end of the lower limit rod, and the hemispherical support extends into the spherical groove;

[0022] The inner wall of the spherical groove is provided with a rubber pad, and the spherical surface of the hemispherical support is in contact with and fits the rubber pad.

[0023] Wherein, a height limiting piece is installed at the upper end of the lower limit rod beside the spherical groove.

[0024] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0025] 1. When working, each engaging member, which is a rubber member, can absorb the vibration energy in the vertical direction through vertical elastic deformation, and the mortise and tenon joint connection between two adjacent engaging members can absorb the vibration energy in the horizontal direction; therefore, the rubber bearing of the utility model has the advantages of novel structural design, and can effectively absorb the vibration energy in the horizontal and vertical directions; compared with the prior art, the rubber bearing of the utility model can effectively simplify the structure of the seismic isolation device, thereby making the structure of the seismic isolation device simpler;

[0026] 2. Since the rubber bearing can effectively simplify the structure of the seismic isolation device, thereby making the structure of the seismic isolation device simpler; therefore, the three-dimensional seismic isolation device of the utility model has the advantages of novel design and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0028] Figure 1 It is a structural schematic diagram of the rubber bearing of the utility model.

[0029] Figure 2 It is a schematic diagram of the partial structure of the rubber bearing of the utility model.

[0030] Figure 3 It is a schematic structural diagram of the three-dimensional seismic isolation device of the utility model.

[0031] Figure 4 It is a structural schematic diagram of the friction pendulum seismic isolation assembly of the utility model.

[0032] exist Figures 1 to 4 Included are:

[0033] 1-upper connecting plate; 2-lower connecting plate; 21-sliding groove; 3-support body; 31-upper fitting; 32-middle fitting; 33-lower fitting; 34-upper oblique tenon group; 341-upper oblique tenon; 35-lower oblique tenon group; 351-lower oblique tenon; 36-granular filler; 37-reinforcement; 4-friction pendulum isolation assembly; 41-upper limit rod; 42-lower limit rod; 43-hemispherical support; 44-spherical groove; 45-rubber pad; 46-height limit piece; 51-upper foundation; 52-lower foundation. DETAILED DESCRIPTION

[0034] The present invention will be described below in conjunction with specific implementation methods.

[0035] Embodiment 1, as Figure 1 As shown, a rubber bearing comprises an upper connecting plate 1 and a lower connecting plate 2, wherein a bearing body 3 is arranged between the upper connecting plate 1 and the lower connecting plate 2.

[0036] Among them, Figure 1 and Figure 2 As shown, the support body 3 includes three rubber inserts arranged in sequence from top to bottom, the three inserts are an upper insert 31, a middle insert 32 and a lower insert 33, the upper end of the upper insert 31 is connected to the upper connecting plate 1, and the lower end of the lower insert 33 is connected to the lower connecting plate 2. It should be explained that the upper connecting plate 1 is screwed to the upper end of the upper insert 31.

[0037] Further, such as Figure 1 and Figure 2 As shown, the lower surface of the upper engaging member 31 is provided with two upper oblique tenon groups 34 that are symmetrical and spaced apart, the upper oblique tenon group 34 on the left side includes a plurality of upper oblique tenons 341 that extend obliquely toward the lower right, and the upper oblique tenon group 34 on the right side includes a plurality of upper oblique tenons 341 that extend obliquely toward the lower left. The angle between each upper oblique tenon 341 and the lower surface of the upper engaging member 31 may be 45 degrees, and each upper oblique tenon 341 is an integral structure with the upper engaging member 31.

[0038] Furthermore, Figure 1 and Figure 2 As shown, the upper surface of the lower engaging member 33 is provided with two lower oblique tenon groups 35 which are symmetrical and arranged at intervals. The lower oblique tenon group 35 on the front side includes a plurality of lower oblique tenons 351 which extend obliquely toward the rear and upper sides, and the lower oblique tenon group 35 on the rear side includes a plurality of lower oblique tenons 351 which extend obliquely toward the front and upper sides. The angle between each lower oblique tenon 351 and the upper surface of the lower engaging member 33 may be 45 degrees, and each lower oblique tenon 351 is an integral structure with the lower engaging member 33.

[0039] In addition, the upper surface of the middle engaging member 32 is provided with upper oblique mortise grooves (not shown in the figure) corresponding to each upper oblique tenon 341, and each upper oblique tenon 341 is respectively inserted into the corresponding upper oblique mortise groove (not shown in the figure); the lower surface of the middle engaging member 32 is provided with lower oblique mortise grooves corresponding to each lower oblique tenon 351, and each lower oblique tenon 351 is respectively inserted into the corresponding lower oblique mortise groove.

[0040] It should be explained that the extension length of each oblique tenon does not exceed 1 / 10 of the diameter of the support body 3 to ensure that the middle part of each mosaic has sufficient thickness, thereby generating a certain shear resistance so as not to be easily damaged during an earthquake.

[0041] It should be pointed out that, for the support body 3 of the first embodiment, the upper oblique tenons 341 of the upper embedding part 31 are respectively inserted into the corresponding upper oblique mortise grooves on the upper surface of the middle embedding part 32 to realize the mortise and tenon connection between the upper embedding part 31 and the middle embedding part 32; the lower oblique tenons 351 of the lower embedding part 33 are respectively inserted into the corresponding lower oblique mortise grooves on the lower surface of the middle embedding part 32 to realize the mortise and tenon connection between the lower embedding part 33 and the middle embedding part 32.

[0042] It should be further pointed out that, since the upper oblique tenon group 34 on the left side includes a plurality of upper oblique tenons 341 extending obliquely toward the lower right, and the upper oblique tenon group 34 on the right side includes a plurality of upper oblique tenons 341 extending obliquely toward the lower left, the upper engaging member 31 and the middle engaging member 32 can realize the occlusal connection in the left-right direction. Since the lower oblique tenon group 35 on the front side includes a plurality of lower oblique tenons 351 extending obliquely toward the upper rear, and the lower oblique tenon group 35 on the rear side includes a plurality of lower oblique tenons 351 extending obliquely toward the upper front, the lower engaging member 33 and the middle engaging member 32 can realize the occlusal connection in the front-back direction. Through the above-mentioned occlusal connection, the support body 3 of the first embodiment can realize a certain occlusal force in the four directions of "east, south, west, and north" in the horizontal direction when in use.

[0043] In the process of realizing seismic isolation and energy dissipation by using the rubber bearing of the first embodiment of the present invention, the upper connecting plate 1 is connected to the upper foundation 51, and the lower connecting plate 2 is connected to the lower foundation 52. When an earthquake occurs, each of the interlocking parts, which are rubber parts, can absorb the vibration energy in the vertical direction through vertical elastic deformation, and the mortise and tenon joint connection between two adjacent interlocking parts can absorb the vibration energy in the horizontal direction.

[0044] Based on the above, it can be seen that through the above structural design, the rubber bearing of the first embodiment has the advantages of novel structural design and can effectively absorb vibration energy in the horizontal and vertical directions. Compared with the prior art, the rubber bearing of the first embodiment can effectively simplify the structure of the seismic isolation device, thereby making the structure of the seismic isolation device simpler.

[0045] Embodiment 2, as Figure 1 As shown, the difference between the second embodiment and the first embodiment is that a sliding groove 21 is provided on the upper surface of the lower connecting plate 2 , and the lower end of the lower engaging member 33 extends into the sliding groove 21 of the lower connecting plate 2 .

[0046] The sliding groove 21 of the lower connecting plate 2 is filled with a particle filler 36 , and the particle filler 36 is located between the lower end of the lower engaging member 33 and the inner wall of the sliding groove 21 .

[0047] When an earthquake occurs, the lower engaging member 33 will slide horizontally in the sliding groove 21 relative to the lower connecting plate 2. The particle filler 36 filled between the lower end of the lower engaging member 33 and the inner wall of the sliding groove 21 can effectively increase the friction between the lower engaging member 33 and the lower connecting plate 2, thereby increasing the effect of friction energy consumption.

[0048] Embodiment three, as Figure 3 As shown, the difference between the third embodiment and the first embodiment is that the support body 3 is provided with a plurality of axial holes which penetrate the upper insert 31, the middle insert 32 and the lower insert 33 from top to bottom in sequence, and a steel bar 37 is embedded in each axial hole of the support body 3, and the support body 3 and each steel bar 37 are vulcanized and bonded into one body.

[0049] As for the steel bar 37 of the third embodiment, it is located inside the entire support body 3. The steel bar 37 can be used to improve the damping performance and integrity of the support body 3, and can withstand part of the horizontal force and vertical force.

[0050] Embodiment 4, as Figure 3 As shown, a three-dimensional seismic isolation device includes a rubber bearing installed between an upper foundation 51 and a lower foundation 52 when in use, and the rubber bearing is the above-mentioned rubber bearing.

[0051] The upper connection portion of the rubber bearing is screwed to the upper foundation 51 , and the lower connection plate 2 of the rubber bearing is screwed to the lower foundation 52 .

[0052] For the three-dimensional seismic isolation device of the fourth embodiment, since the above-mentioned rubber bearing can effectively simplify the structure of the seismic isolation device, thereby making the structure of the seismic isolation device simpler; therefore, the three-dimensional seismic isolation device of the fourth embodiment has the advantages of novel design and simple structure.

[0053] Embodiment 5, as Figure 3 and Figure 4 As shown, the difference between the fifth embodiment and the fourth embodiment is that a plurality of friction pendulum seismic isolation components 4 are installed between the upper foundation 51 and the lower foundation 52 and are distributed in a ring array around the rubber bearing.

[0054] Specifically, the friction pendulum seismic isolation assembly 4 includes an upper limit rod 41 screwed to the upper foundation 51, and a lower limit rod 42 screwed to the lower foundation 52; the lower end of the upper limit rod 41 is screwed with a hemispherical support 43 in the shape of a semi-sphere, and the upper end of the lower limit rod 42 is provided with a spherical groove 44 opening upward, and the hemispherical support 43 extends into the spherical groove 44; the inner wall of the spherical groove 44 is provided with a rubber pad 45, and the spherical surface of the hemispherical support 43 is in contact with and fits with the rubber pad 45.

[0055] When an earthquake occurs, the upper limit rod 41 vibrates synchronously with the upper foundation 51, and the lower limit rod 42 vibrates synchronously with the lower foundation 52. During this process, the hemispherical support 43 located at the lower end of the upper limit rod 41 moves relative to the spherical groove 44 at the upper end of the lower limit rod 42. At this time, the hemispherical support 43 and the rubber pad 45 on the inner wall of the spherical groove 44 rub against each other, thereby achieving the purpose of friction energy consumption.

[0056] By providing a plurality of friction pendulum isolation components 4, the fifth embodiment can further improve the shock absorption and energy dissipation performance of the entire three-dimensional isolation device.

[0057] Embodiment six, as Figure 3 and Figure 4 As shown, the difference between the sixth embodiment and the fifth embodiment is that a height limiting member 46 is installed at the upper end of the lower limit rod 42 beside the spherical groove 44 .

[0058] As for the height limiting member 46 of the sixth embodiment, it can limit the excessive deflection of the hemispherical support 43, thereby ensuring that the hemispherical support 43 remains in the spherical groove 44, so as to improve the stability of the overall structure.

[0059] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A rubber bearing, comprising an upper connecting plate (1) and a lower connecting plate (2), wherein a bearing body (3) is arranged between the upper connecting plate (1) and the lower connecting plate (2); Features: The support body (3) comprises three inserts which are arranged in sequence from top to bottom and are respectively rubber parts, the three inserts being in sequence an upper insert (31), a middle insert (32) and a lower insert (33), the upper end of the upper insert (31) being connected to the upper connecting plate (1), and the lower end of the lower insert (33) being connected to the lower connecting plate (2); The lower surface of the upper engaging member (31) is provided with two upper oblique tenon groups (34) which are symmetrical and spaced apart from each other, the upper oblique tenon group (34) on the left side includes a plurality of upper oblique tenons (341) which extend obliquely toward the lower right, and the upper oblique tenon group (34) on the right side includes a plurality of upper oblique tenons (341) which extend obliquely toward the lower left; The upper surface of the lower engaging member (33) is provided with two lower oblique tenon groups (35) which are symmetrical in front and back and arranged at intervals, the lower oblique tenon group (35) on the front side includes a plurality of lower oblique tenons (351) which extend obliquely toward the rear and upward, and the lower oblique tenon group (35) on the rear side includes a plurality of lower oblique tenons (351) which extend obliquely toward the front and upward; The upper surface of the middle engaging member (32) is provided with upper oblique mortise grooves corresponding to the upper oblique tenons (341), and the upper oblique tenons (341) are respectively inserted into the corresponding upper oblique mortise grooves; the lower surface of the middle engaging member (32) is provided with lower oblique mortise grooves corresponding to the lower oblique tenons (351), and the lower oblique tenons (351) are respectively inserted into the corresponding lower oblique mortise grooves.

2. A rubber bearing according to claim 1, characterized in that: The upper surface of the lower connecting plate (2) is provided with a sliding groove (21), and the lower end portion of the lower engaging member (33) extends into the sliding groove (21) of the lower connecting plate (2); The sliding groove (21) of the lower connecting plate (2) is filled with a particle filler (36), and the particle filler (36) is located between the lower end of the lower engaging piece (33) and the inner wall of the sliding groove (21).

3. The rubber bearing according to claim 1, characterized in that: The support body (3) is provided with a plurality of axial holes which penetrate the upper embedded part (31), the middle embedded part (32), and the lower embedded part (33) in sequence from top to bottom. A steel bar (37) is respectively embedded in each axial hole of the support body (3), and the support body (3) and each steel bar (37) are vulcanized and bonded into one piece.

4. The rubber bearing according to claim 1, characterized in that: The upper connecting plate (1) is screwed to the upper end of the upper engaging member (31).

5. A three-dimensional seismic isolation device, comprising a rubber support installed between an upper foundation (51) and a lower foundation (52) when in use, characterized in that: The rubber bearing is the rubber bearing according to any one of claims 1 to 4; The upper connection portion of the rubber bearing is screwed to the upper foundation (51), and the lower connection plate (2) of the rubber bearing is screwed to the lower foundation (52).

6. A three-dimensional seismic isolation device according to claim 5, characterized in that: A plurality of friction pendulum seismic isolation components (4) distributed in a ring array around the rubber bearing are installed between the upper foundation (51) and the lower foundation (52).

7. A three-dimensional seismic isolation device according to claim 6, characterized in that: The friction pendulum seismic isolation assembly (4) comprises an upper limit rod (41) threadedly connected to the upper foundation (51) and a lower limit rod (42) threadedly connected to the lower foundation (52); A hemispherical support (43) in the shape of a semi-sphere is screwed onto the lower end of the upper limit rod (41), a spherical groove (44) opening upward is formed on the upper end of the lower limit rod (42), and the hemispherical support (43) extends into the spherical groove (44); The inner wall of the spherical groove (44) is provided with a rubber pad (45), and the spherical surface of the hemispherical support (43) is in contact with and fits the rubber pad (45).

8. A three-dimensional seismic isolation device according to claim 7, characterized in that: A height limiting member (46) is installed at the upper end of the lower limiting rod (42) beside the spherical groove (44).

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