Plate-type shock-absorbing rubber support

Abstract

The utility model discloses a plate type shock attenuation rubber support concretely relates to plate type rubber support technical field, including rubber layer, wherein, the bottom of rubber layer is provided with lower support plate, the top of rubber layer is provided with upper support plate, the surface fixed setting of lower support plate has lower limit ring, the bottom fixed setting of upper support plate has upper limit ring, the top end and bottom end of rubber layer are fixed in the inside of lower limit ring and upper limit ring respectively through adhesive, and the limit protection structure is arranged between upper support plate and lower support plate and is located the outside of rubber layer, and the limit protection structure includes lower protection ring, and lower protection ring can be detachably installed on the surface of lower support plate, and the bottom of upper support plate is detachably provided with upper protection ring. The utility model not only has good shock attenuation effect, but also can improve the horizontal pulling force of plate type shock attenuation rubber support, and simultaneously, can protect rubber layer, avoid the influence of rainwater on rubber layer, improve the overall service life.

Description

Technical Field

[0001] This utility model relates to the field of plate rubber bearing technology, and more specifically, to a plate damping rubber bearing. Background Technology

[0002] In the field of civil engineering, the stability and safety of structures such as bridges and buildings are of paramount importance. As a key component connecting the upper and lower parts of the structure, plate rubber bearings play an important role in transferring loads and adapting to deformation. Plate rubber bearings are usually made of multiple layers of rubber sheets and steel plates vulcanized and bonded together, which can meet the vertical bearing requirements of the structure to a certain extent. However, the rubber body of the plate rubber bearing can only bear vertical loads and rotation angles, and it is difficult to bear horizontal forces. When the horizontal force is large, there is a risk of beam falling, which can cause safety accidents.

[0003] A search revealed that Chinese patent CN222923588U discloses a shock-absorbing plate rubber bearing. This structure uses a first elastic limiting post and a second elastic limiting post to connect and reinforce the steel plate layer and the rubber layer, thereby enabling it to withstand horizontal tensile forces. When the plate rubber bearing is subjected to vibration, the vibration is absorbed by the shock-absorbing spring, and its rebound potential energy is weakened by the rubber layer, the first elastic limiting post, and the second elastic limiting post, thus giving it good shock absorption performance.

[0004] However, in actual use, the rubber layer of this structure is located between the upper and lower support plates, and its top and bottom ends are located inside the upper and lower limit rings, respectively. Because the rubber layer lacks protection, it is easily affected by rainwater, which causes rainwater to enter the interior of the rubber layer, resulting in aging of the rubber layer and corrosion of the internal steel plate, affecting its service life. In view of this, this utility model proposes a plate-type shock-absorbing rubber bearing. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plate-type shock-absorbing rubber bearing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plate-type vibration-damping rubber bearing, comprising a rubber layer, a lower support plate at the bottom of the rubber layer, an upper support plate at the top of the rubber layer, a lower limiting ring fixedly disposed on the surface of the lower support plate, and an upper limiting ring fixedly disposed on the bottom of the upper support plate. The top and bottom ends of the rubber layer are respectively fixed inside the upper and lower limiting rings by adhesive. Several fixing holes are provided on the surfaces of both the lower and upper support plates for connecting the lower support plate to a cement base through the fixing holes, and connecting the upper support plate to the bottom of the bridge through the fixing holes.

[0007] As can be seen, the lower support plate and the upper support plate can be connected to the cement base and the bottom of the bridge respectively. The rubber layer plays a role in shock absorption, and the upper limit ring and the lower limit ring can prevent the plate rubber bearing from separating when subjected to horizontal tensile force, thus improving safety.

[0008] To further achieve the effect of horizontal restriction and improve the service life of the rubber layer, preferably, a limiting protection structure is provided between the upper support plate and the lower support plate and outside the rubber layer. The limiting protection structure includes a lower protective ring, which is detachably mounted on the surface of the lower support plate. An upper protective ring is detachably mounted on the bottom of the upper support plate. A stepped sliding cavity is formed on the surface of the lower protective ring. An anti-detachment ring is fixedly provided at the bottom of the upper protective ring. The bottom of the upper protective ring and the anti-detachment ring are slidably connected inside the lower protective ring through the sliding cavity. The outer diameter of the anti-detachment ring is larger than the inner diameter of the opening of the sliding cavity, which is used to restrict the upper protective ring from detaching from the inside of the lower protective ring. Mounting rings are fixedly provided at the bottom of the lower protective ring and the top of the upper protective ring. Bolts are installed in a ring at the connection points of the two mounting rings with the lower support plate and the upper support plate, and the connection is detachable through the bolts.

[0009] To improve the performance of the rubber layer, preferably, the interior of the rubber layer has several steel plate layers evenly distributed from top to bottom. A shock-absorbing spring is fixed in a circular array between every two groups of steel plate layers. A first through hole is formed through the center of the top of each steel plate layer, and a second through hole is formed in a circular array at the top of each steel plate layer. A first elastic limiting post is installed in the first through hole, and a second elastic limiting post is installed in the second through hole. The shock-absorbing springs arranged in a circular array are located on the outer ring of the first elastic limiting post, and the second elastic limiting post is located on the outer ring of the circularly arranged shock-absorbing springs. The top ends of both the first and second elastic limiting posts penetrate the top of the uppermost steel plate layer, and the bottom ends of both the first and second elastic limiting posts penetrate the bottom of the lowermost steel plate layer.

[0010] The technical effects and advantages of this utility model are as follows: 1. By setting a limiting protection structure, both the upper and lower protective rings can be detachably installed between the upper and lower support plates via bolts on the mounting rings, facilitating the disassembly and assembly of the entire limiting protection structure. The upper protective ring can slide inside the sliding cavity to which the lower protective ring belongs. Without affecting the normal use of the entire plate damping rubber bearing, it further limits the horizontal tensile force on the plate damping rubber bearing. At the same time, the protective cavity formed by the upper and lower protective rings can protect the rubber layer, preventing the rubber layer from being exposed to the outside and subjected to rainwater for a long time, which would cause the rubber layer and its internal steel plate layer to age or rust, affecting the service life of the rubber layer. 2. By fixing the top and bottom of the rubber layer to the upper limit ring of the upper support plate and the lower limit ring of the lower support plate respectively with adhesive, the upper limit ring and the lower limit ring can improve the strength of the rubber layer after being connected to the upper and lower support plates, and limit the position of the outer side of the plate rubber bearing, so as to prevent the plate rubber bearing from separating when subjected to horizontal tensile force and improve safety. 3. The plate rubber bearing is composed of a rubber layer and multiple sets of steel plate layers distributed from top to bottom. The first and second elastic limiting columns can be used to connect and reinforce the steel plate layers and the rubber layer, so that it can bear horizontal tensile force. When the plate rubber bearing is subjected to vibration, the vibration is absorbed by the damping spring, and its rebound potential energy is weakened by the rubber layer, the first elastic limiting column and the second elastic limiting column, thereby giving the plate rubber bearing good vibration damping performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model without the limit protection structure installed.

[0013] Figure 3 This is a three-dimensional schematic diagram of the limiting and protective structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the upper and lower protective rings of this utility model when they are separated.

[0015] Figure 5 This is a schematic diagram of the internal structure of the rubber layer of this utility model.

[0016] The attached diagram is labeled as follows: 1. Rubber layer; 2. Lower support plate; 3. Upper support plate; 4. Lower limit ring; 5. Upper limit ring; 6. Lower protective ring; 7. Upper protective ring; 8. Sliding cavity; 9. Anti-detachment ring; 10. Mounting ring; 11. Bolt; 12. Steel plate layer; 13. Shock-absorbing spring; 14. First elastic limit post; 15. Second elastic limit post; 16. Fixing hole. Detailed Implementation

[0017] 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.

[0018] As attached Figure 1-5The plate-type vibration damping rubber bearing shown includes a rubber layer 1, a lower support plate 2 at the bottom of the rubber layer 1, and an upper support plate 3 at the top of the rubber layer 1. A lower limiting ring 4 is fixedly installed on the surface of the lower support plate 2, and an upper limiting ring 5 is fixedly installed on the bottom of the upper support plate 3. The top and bottom ends of the rubber layer 1 are fixed to the inside of the upper limiting ring 5 and the lower limiting ring 4 respectively by adhesive. Several fixing holes 16 are opened on the surface of both the lower support plate 2 and the upper support plate 3 for connecting the lower support plate 2 to the cement base through the fixing holes 16, and connecting the upper support plate 3 to the bottom of the bridge through the fixing holes 16.

[0019] Specifically, in this structure, the lower support plate 2 can be installed on the cement base through the fixing hole 16, while the upper support plate 3 can be installed at the bottom of the bridge through the fixing hole 16. The rubber layer 1 is located between the lower support plate 2 and the upper support plate 3, which can play a good shock absorption role. Meanwhile, the top and bottom ends of the rubber layer 1 are fixed to the upper limit ring 5 of the upper support plate 3 and the lower limit ring 4 of the lower support plate 2 respectively by adhesive. The lower limit ring 4 and the upper limit ring 5 can improve the strength of the rubber layer 1 after it is connected to the upper support plate 3 and the lower support plate 2, and limit the position of the outer side of the plate rubber bearing to prevent the plate rubber bearing from separating when subjected to horizontal tensile force, thus improving safety.

[0020] In this embodiment, as shown in the appendix Figure 1 , 3 As shown in Figure 4, a limiting protection structure is provided between the upper support plate 3 and the lower support plate 2 and outside the rubber layer 1. The limiting protection structure includes a lower protective ring 6, which is detachably mounted on the surface of the lower support plate 2. An upper protective ring 7 is detachably mounted on the bottom of the upper support plate 3. A stepped sliding cavity 8 is opened on the surface of the lower protective ring 6. An anti-detachment ring 9 is fixedly provided at the bottom of the upper protective ring 7. The bottom of the upper protective ring 7 and the anti-detachment ring 9 are slidably connected inside the lower protective ring 6 through the sliding cavity 8. The outer diameter of the anti-detachment ring 9 is larger than the inner diameter of the opening of the sliding cavity 8, which is used to restrict the upper protective ring 7 from detaching from the inside of the lower protective ring 6. Mounting rings 10 are fixedly provided at the bottom of the lower protective ring 6 and the top of the upper protective ring 7. Bolts 11 are installed in a ring shape at the connection between the two mounting rings 10 and the lower support plate 2 and the upper support plate 3, and they are detachably connected by bolts 11.

[0021] Specifically, in this structure, the lower protective ring 6 can be detachably installed on the upper surface of the lower support plate 2 by means of the bolt 11 on the mounting ring 10, while the upper protective ring 7 can be detachably installed on the lower surface of the upper support plate 3 by means of the screw on the mounting ring 10, so that the entire limiting and protective structure can be detachably installed between the upper support plate 3 and the lower support plate 2 and located outside the rubber layer 1. The upper protective ring 7 and the lower protective ring 6 can form a good protective structure, so that the rubber layer 1 is located inside the protective cavity formed by the upper protective ring 7 and the lower protective ring 6, which protects the rubber layer 1 and prevents the rubber layer 1 from being exposed to the outside and affected by rainwater for a long time, which would cause the rubber layer 1 and the steel plate layer 12 inside it to age or rust, affecting the service life of the rubber layer 1. The bottom of the upper protective ring 7 and the anti-detachment ring 9 are slidably connected inside the lower protective ring 6 through the sliding cavity 8. Without affecting the normal use of the entire plate damping rubber bearing, the plate damping rubber bearing is further restricted from being affected by horizontal tensile force. A silicone sealing strip is set between the inner wall of the sliding cavity 8 of the lower protective ring 6 and the outer side of the anti-detachment ring 9. EPDM rubber waterproof gaskets are added to the contact surfaces of the mounting ring 10 with the lower support plate 2 and the upper support plate 3. After the bolts 11 are tightened, waterproof adhesive is applied.

[0022] In this embodiment, as shown in the appendix Figure 5 As shown, several steel plate layers 12 are evenly distributed from top to bottom inside the rubber layer 1. A shock-absorbing spring 13 is fixed in a circular array between every two groups of steel plate layers 12. A first through hole is opened through the center of the top of each steel plate layer 12. A second through hole is evenly distributed in a circular array at the top of each steel plate layer 12. A first elastic limiting post 14 is installed in the first through hole, and a second elastic limiting post 15 is installed in the second through hole. The shock-absorbing springs 13, arranged in a circular array, are located around the outer ring of the first elastic limiting post 14. The second elastic limiting posts 15, also arranged in a circular array, are located around the outer ring of the shock-absorbing springs 13. The top ends of both the first elastic limiting post 14 and the second elastic limiting post 15 penetrate the top of the uppermost steel plate layer 12, and the bottom ends of both the first elastic limiting post 14 and the second elastic limiting post 15 penetrate the bottom of the lowermost steel plate layer 12.

[0023] Specifically, in this structure, a plate-type rubber support is formed by a rubber layer 1 and multiple sets of steel plate layers 12 distributed from top to bottom. The steel plate layer 12 and the rubber layer 1 can be connected and reinforced by the first elastic limiting column 14 and the second elastic limiting column 15, so that it can bear horizontal tensile force. When the plate rubber bearing is subjected to vibration, the vibration is absorbed by the damping spring 13, and its rebound potential energy is weakened by the rubber layer 1, the first elastic limiting post 14 and the second elastic limiting post 15, so that the plate rubber bearing has good vibration damping performance.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plate-type vibration damping rubber bearing, comprising a rubber layer (1), characterized in that: The bottom of the rubber layer (1) is provided with a lower support plate (2), the top of the rubber layer (1) is provided with an upper support plate (3), the surface of the lower support plate (2) is fixedly provided with a lower limiting ring (4), the bottom of the upper support plate (3) is fixedly provided with an upper limiting ring (5), the top and bottom of the rubber layer (1) are respectively fixed inside the upper limiting ring (5) and the lower limiting ring (4) by adhesive, and a limiting protection structure is provided between the upper support plate (3) and the lower support plate (2) and located outside the rubber layer (1); The limiting protection structure includes a lower protective ring (6), which is detachably mounted on the surface of the lower support plate (2). An upper protective ring (7) is detachably mounted on the bottom of the upper support plate (3). A stepped sliding cavity (8) is opened on the surface of the lower protective ring (6). An anti-detachment ring (9) is fixedly provided at the bottom of the upper protective ring (7). The bottom of the lower protective ring (6) and the top of the upper protective ring (7) are both fixedly provided with mounting rings (10). The two mounting rings (10) are connected to the lower support plate (2) and the upper support plate (3) in a ring shape with bolts (11), and can be detachably connected by bolts (11).

2. The plate-type vibration-damping rubber bearing according to claim 1, characterized in that: The interior of the rubber layer (1) is evenly distributed with several steel plate layers (12) from top to bottom. A shock-absorbing spring (13) is fixed in a ring array between every two sets of steel plate layers (12). A first through hole is opened through the center of the top of the steel plate layer (12). A second through hole is evenly opened through the top of the steel plate layer (12) in a ring array. A first elastic limiting post (14) is provided in the first through hole, and a second elastic limiting post (15) is provided in the second through hole.

3. The plate-type vibration-damping rubber bearing according to claim 2, characterized in that: The shock-absorbing springs (13) arranged in a ring are located on the outer ring of the first elastic limiting post (14), and the second elastic limiting post (15) arranged in a ring is located on the outer ring of the shock-absorbing springs (13).

4. The plate-type vibration-damping rubber bearing according to claim 1, characterized in that: The top ends of the first elastic limiting post (14) and the second elastic limiting post (15) both penetrate the top of the uppermost steel plate layer (12), and the bottom ends of the first elastic limiting post (14) and the second elastic limiting post (15) both penetrate the bottom of the lowermost steel plate layer (12).

5. The plate-type vibration-damping rubber bearing according to claim 1, characterized in that: The surfaces of the lower support plate (2) and the upper support plate (3) are provided with several fixing holes (16) for connecting the lower support plate (2) to the cement base through the fixing holes (16) and the upper support plate (3) to the bottom of the bridge through the fixing holes (16).

6. The plate-type vibration-damping rubber bearing according to claim 1, characterized in that: The bottom of the upper protective ring (7) and the anti-detachment ring (9) are slidably connected inside the lower protective ring (6) through the sliding cavity (8). The outer diameter of the anti-detachment ring (9) is larger than the inner diameter of the opening of the sliding cavity (8), which is used to restrict the upper protective ring (7) from detaching from the inside of the lower protective ring (6).

Images