A pull-resistant rubber support

Abstract

The utility model belongs to bridge support, building support and ocean ship support technical field, concretely is a kind of tensile rubber support, and the upper and lower surfaces of rubber support rubber body are respectively connected with rubber support top plate, rubber support bottom plate, the top of rubber support top plate is equipped with external upper connecting plate, and the below of rubber support bottom plate is equipped with external lower connecting plate;The periphery of rubber support rubber body is equipped with at least one connecting frame, and connecting frame is located between rubber support top plate and rubber support bottom plate, connecting frame is hollow structure, and inside is equipped with fixed plate, the bottom of connecting frame is connected with rubber support bottom plate and external lower connecting plate, and the top of connecting frame is connected with fixed plate, rubber support top plate and external upper connecting plate.The utility model strengthens the overall tensile property and stability of rubber support, avoids the irreversible damage such as rubber layer tearing, steel plate degumming of rubber support under the action of tension, fills the functional blank of traditional support.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge bearings, building bearings and marine bearings, specifically a pull-out resistant rubber bearing. Background Technology

[0002] In civil engineering structures such as bridges and buildings, bearings are crucial force-transmitting components connecting the superstructure and the foundation. Their performance directly affects the structure's safety, serviceability, and durability. On marine vessels, rubber bearings are core components of vibration reduction and noise control systems. They play an irreplaceable role in ensuring structural safety, improving equipment reliability, enhancing crew comfort, and increasing the stealth capabilities of warships, making them a high-tech component of modern ship design and construction. Therefore, rubber bearings are widely used in various engineering projects due to their excellent elasticity, damping performance, simple construction, and low cost.

[0003] Traditional rubber bearings are primarily designed to withstand and transmit vertical pressure and accommodate beam rotation. However, in practical engineering, rubber bearings often bear complex loads from multiple directions. For example, in bridges located in high-intensity earthquake zones, coastal areas with strong winds, or areas experiencing emergency vehicle braking, and on ships subjected to large waves, the superstructure installed on rubber bearings will generate enormous uplift forces (i.e., tensile forces). Traditional rubber bearings are typically composed of multiple layers of steel plates and vulcanized rubber bonded together. The rubber material itself has extremely low tensile strength, making it highly susceptible to irreversible damage under continuous or repeated tensile stress, such as rubber layer tearing, debonding of the steel plates from the rubber, and surface cracking. These damages will lead to bearing failure, seriously threatening the safety and service life of the overall structure. Tensile stress exists in many buildings, bridges, and marine vessels, thus this limitation restricts the application and widespread use of rubber bearings.

[0004] In addition, existing rubber bearings also have the following problems:

[0005] (1) Traditional rubber bearings cannot resist “uplift force” or “negative reaction force”, which leads to the rubber bearings coming loose and the structure becoming unstable.

[0006] (2) Some existing anti-uplift supports require a large number of anchor rods or steel components to be pre-embedded separately in the beam and pier, which is complex and difficult to install.

[0007] (3) Traditional anti-pull-out rubber bearings have complex external structures, require a large amount of steel plates, and have high costs. Utility Model Content

[0008] In view of the above-mentioned problems of existing rubber bearings, the purpose of this utility model is to provide a pull-out resistant rubber bearing.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] This utility model includes an outer upper connecting plate, a rubber bearing top plate, a connecting frame, a rubber bearing body, a fixing plate, a rubber bearing bottom plate, and an outer lower connecting plate. The upper and lower surfaces of the rubber bearing body are fixedly connected to the rubber bearing top plate and the rubber bearing bottom plate, respectively. An outer upper connecting plate is provided above the rubber bearing top plate, and an outer lower connecting plate is provided below the rubber bearing bottom plate. At least one connecting frame is provided around the rubber bearing body, and the connecting frame is located between the rubber bearing top plate and the rubber bearing bottom plate. The connecting frame has a hollow structure and a fixing plate is provided inside. The bottom of the connecting frame is fixedly connected to the rubber bearing bottom plate and the outer lower connecting plate, and the top of the connecting frame is fixedly connected to the fixing plate, the rubber bearing top plate, and the outer upper connecting plate.

[0011] Wherein: the height of the connecting frame is less than the height of the rubber body of the rubber support; the bottom of the connecting frame abuts against the upper surface of the bottom plate of the rubber support; a gap is left between the top of the connecting frame and the lower surface of the top plate of the rubber support; and the fixing plate abuts against the lower surface of the top of the connecting frame.

[0012] The connecting frame has an open structure on the side facing the rubber body of the rubber support along its length and at both ends along its length.

[0013] The connecting frame is an external C-shaped frame, the end face of the external C-shaped frame is "C" shaped, the opening of the "C" shape faces the rubber support body, and the fixing plate abuts against the lower surface of the plate above the opening of the external C-shaped frame.

[0014] The lower plate of the external C-shaped frame opening, the rubber support base plate, and the external lower connecting plate are fixed together by fastening bolts and fastening nuts. Bolt holes are opened on the lower plate of the external C-shaped frame opening, the rubber support base plate, and the external lower connecting plate. The fastening bolts pass through the bolt holes on the lower plate of the external C-shaped frame opening, the rubber support base plate, and the external lower connecting plate, and are tightened and fixed by the fastening nuts.

[0015] The fixed plate, the upper plate of the opening of the external C-shaped frame, the top plate of the rubber support, and the upper connecting plate are fixed together by fastening bolts and fastening nuts. The upper plate of the opening of the external C-shaped frame has an elongated hole for connection. The fixed plate, the top plate of the rubber support, and the upper connecting plate are respectively provided with bolt holes. The fastening bolts pass through the bolt holes on the fixed plate, the elongated hole on the upper plate of the opening of the external C-shaped frame, the top plate of the rubber support, and the upper connecting plate, and are tightened and fixed by the fastening nuts.

[0016] The advantages and positive effects of this utility model are as follows:

[0017] 1. This utility model can directly and efficiently transmit tensile force, enabling the rubber bearing to still work as a whole when under tension, thereby enhancing the overall tensile strength and stability of the rubber bearing and avoiding irreversible damage such as rubber layer tearing and steel plate delamination under tensile force, thus filling the functional gap of traditional bearings.

[0018] 2. This utility model can firmly connect the upper and lower structures, effectively separating the upper structure from the foundation, greatly improving the seismic toughness and safety of the overall structure, and preventing catastrophic collapse.

[0019] 3. This utility model integrates multiple functions such as compression resistance, shear resistance, tensile resistance, and energy dissipation from the single function of compression resistance and shear resistance, making the performance of the rubber bearing more comprehensive.

[0020] 4. The structure of this utility model is simple to install, highly operable, does not affect the structural dimensions of the rubber support body, and is easy to disassemble and replace, reducing the difficulty of later maintenance and reducing operation and maintenance costs. Attached Figure Description

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0022] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 This is the third three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4 This is a cross-sectional view of the structure of this utility model;

[0025] Wherein: 1 is the external upper connecting plate, 2 is the rubber support top plate, 3 is the external C-shaped frame, 4 is the rubber support rubber body, 5 is the fixing plate, 6 is the rubber support bottom plate, 7 is the external lower connecting plate, 8 is the fastening bolt, 9 is the fastening nut, and 10 is the elongated hole. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] like Figures 1-4As shown, this utility model includes an outer upper connecting plate 1, a rubber support top plate 2, a connecting frame, a rubber support body 4, a fixing plate 5, a rubber support bottom plate 6, and an outer lower connecting plate 7. The upper and lower surfaces of the rubber support body 4 are fixedly connected to the rubber support top plate 2 and the rubber support bottom plate 6, respectively. The outer upper connecting plate 1 is provided above the rubber support top plate 2, and the outer lower connecting plate 7 is provided below the rubber support bottom plate 6. At least one connecting frame is provided around the rubber support body 4, and the connecting frame is located between the rubber support top plate 2 and the rubber support bottom plate 6. The connecting frame has a hollow structure and a fixing plate 5 is provided inside. The bottom of the connecting frame is fixedly connected to the rubber support bottom plate 6 and the outer lower connecting plate 7, and the top of the connecting frame is fixedly connected to the fixing plate 5, the rubber support top plate 2, and the outer upper connecting plate 1.

[0028] In this embodiment, the rubber bearing body 4 is a cuboid, and two connecting frames are symmetrically arranged on both sides of the rubber bearing body 4 in the width direction. In this embodiment, the external connecting plate 1, the top plate 2, the bottom plate 6, and the lower external connecting plate 7 are all rectangular plates, and their length and width are greater than the length and width of the rubber bearing body 4, respectively; in this embodiment, the external connecting plate 1, the top plate 2, the bottom plate 6, and the lower external connecting plate 7 are all steel plates.

[0029] In this embodiment, the height of the connecting frame is less than the height of the rubber body 4 of the rubber support. The bottom of the connecting frame abuts against the upper surface of the rubber support base plate 6, and a gap is left between the top of the connecting frame and the lower surface of the rubber support top plate 2. The fixing plate 5 abuts against the lower surface of the top of the connecting frame. The side of the connecting frame facing the rubber body 4 along its length and both ends along its length are open structures.

[0030] In this embodiment, the connecting frame is an external C-shaped frame 3. The horizontal end face of the external C-shaped frame 3 is "C"-shaped, and the vertical end face is rectangular. The length direction of the external C-shaped frame 3 is in the same direction as the width direction of the rubber support body 4, and the width direction of the external C-shaped frame 3 is in the same direction as the length direction of the rubber support body 4. The "C"-shaped opening of the external C-shaped frame 3 faces the rubber support body 4, and the fixing plate 5 abuts against the lower surface of the plate above the opening of the external C-shaped frame 3. The length and width directions of the fixing plate 5 are the same as the length and width directions of the external C-shaped frame 3.

[0031] In this embodiment, the lower plate of the opening of the external C-frame 3, the rubber support base plate 6, and the external lower connecting plate 7 are fixed together by fastening bolts 8 and fastening nuts 9. The lower plate of the opening of the external C-frame 3, the rubber support base plate 6, and the external lower connecting plate 7 are each provided with evenly distributed bolt holes. The fastening bolts 8 pass through these bolt holes and are secured by the fastening nuts 9. The fastening method between the lower plate of the opening of the external C-frame 3, the rubber support base plate 6, and the external lower connecting plate 7 is not limited to bolt and nut connections; welding or other methods of fixation can also be used.

[0032] In this embodiment, the fixed plate 5, the upper plate of the opening of the external C-shaped frame 3, the top plate of the rubber support 2, and the external upper connecting plate 1 are fixed together by fastening bolts 8 and fastening nuts 9. The upper plate of the opening of the external C-shaped frame 3 has an elongated hole 10 for connection. The fixed plate 5, the top plate of the rubber support 2, and the external upper connecting plate 1 are respectively provided with evenly distributed bolt holes. The fastening bolts 8 pass through the bolt holes on the fixed plate 5, the elongated hole 10 on the upper plate of the opening of the external C-shaped frame 3, the top plate of the rubber support 2, and the external upper connecting plate 1, and are tightened and fixed by fastening nuts 9.

[0033] The working principle of this utility model is as follows:

[0034] Unlike traditional plate rubber bearing structures, this utility model's pull-out resistant rubber bearing features a set of two external C-shaped frames 3 mounted on the rubber bearing base plate 6. The external C-shaped frames 3, along with the external upper connecting plate 1 and external lower connecting plate 7, form an integrated load-bearing structure via fastening bolts 8 and fastening nuts 9. This allows the external C-shaped frames 3 to effectively limit the vertical displacement of the rubber bearing under vertical tension, preventing the rubber bearing from being pulled up as a whole, thus enhancing the overall tensile strength and stability of the rubber bearing. The height of the external C-shaped frames 3 is lower than the height of the rubber body 4 of the rubber bearing, ensuring that the rubber body 4 maintains good deformation capacity under compression. The upper plate of the external C-shaped frames 3 has elongated slotted holes 10 for connection, ensuring that the rubber bearing has sufficient horizontal displacement adaptability and rotational function. This utility model combines pull-out resistance requirements with the flexibility of conventional plate rubber bearings, making it suitable for bridges, building structures, and marine bearings in earthquake zones or under heavy wind loads.

Claims

1. A pull-out resistant rubber bearing, characterized in that: The assembly includes an upper external connecting plate (1), a rubber bearing top plate (2), a connecting frame, a rubber bearing body (4), a fixing plate (5), a rubber bearing bottom plate (6), and an lower external connecting plate (7). The upper and lower surfaces of the rubber bearing body (4) are fixedly connected to the rubber bearing top plate (2) and the rubber bearing bottom plate (6), respectively. An upper external connecting plate (1) is provided above the rubber bearing top plate (2), and an lower external connecting plate (7) is provided below the rubber bearing bottom plate (6). At least one connecting frame is provided around the rubber bearing body (4), and the connecting frame is located between the rubber bearing top plate (2) and the rubber bearing bottom plate (6). The connecting frame is a hollow structure with a fixing plate (5) inside. The bottom of the connecting frame is fixedly connected to the rubber bearing bottom plate (6) and the lower external connecting plate (7), and the top of the connecting frame is fixedly connected to the fixing plate (5), the rubber bearing top plate (2), and the upper external connecting plate (1).

2. The anti-pull-out rubber support according to claim 1, characterized in that: The height of the connecting frame is less than the height of the rubber body (4) of the rubber support. The bottom of the connecting frame abuts against the upper surface of the rubber support base plate (6). There is a gap between the top of the connecting frame and the lower surface of the rubber support top plate (2). The fixing plate (5) abuts against the lower surface of the top of the connecting frame.

3. The anti-pull-out rubber support according to claim 1, characterized in that: The connecting frame has an open structure on the side facing the rubber support rubber body (4) along its length and at both ends along its length.

4. The anti-pull-out rubber support according to claim 1, characterized in that: The connecting frame is an external C-shaped frame (3), the end face of the external C-shaped frame (3) is "C" shaped, the opening of the "C" shape faces the rubber support rubber body (4), and the fixing plate (5) abuts against the lower surface of the plate above the opening of the external C-shaped frame (3).

5. The anti-pull-out rubber support according to claim 4, characterized in that: The lower plate of the opening of the external C-shaped frame (3), the rubber support base plate (6) and the external lower connecting plate (7) are fixed together by fastening bolts (8) and fastening nuts (9). Bolt holes are opened on the lower plate of the opening of the external C-shaped frame (3), the rubber support base plate (6) and the external lower connecting plate (7). The fastening bolts (8) pass through the bolt holes on the lower plate of the opening of the external C-shaped frame (3), the rubber support base plate (6) and the external lower connecting plate (7) and are tightened and fixed by the fastening nuts (9).

6. The anti-pull-out rubber support according to claim 4, characterized in that: The fixed plate (5), the upper plate of the opening of the external C-shaped frame (3), the top plate of the rubber support (2) and the upper connecting plate (1) are fixed together by fastening bolts (8) and fastening nuts (9). The upper plate of the opening of the external C-shaped frame (3) is provided with a long waist-shaped hole (10) for connection. Bolt holes are respectively provided on the fixed plate (5), the top plate of the rubber support (2) and the upper connecting plate (1). The fastening bolts (8) pass through the bolt holes on the fixed plate (5), the long waist-shaped hole (10) on the upper plate of the opening of the external C-shaped frame (3), the top plate of the rubber support (2) and the upper connecting plate (1), and are tightened and fixed by the fastening nuts (9).

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