A limited-position anti-falling beam anti-seismic block device

Abstract

This utility model relates to the field of bridge safety technology, specifically to a limiting and anti-fall beam seismic blocking device, including a concave base, a mounting platform mounted on the concave part of the concave base for placing the beam, a buffer structure between the lower surface of the mounting platform and the concave base, a support structure vertically installed in the cavity of the beam, and a sliding structure including a sliding plate sleeved with the support structure, a lifting structure below the sliding plate, one end of the lifting structure connected to the sliding plate and the other end connected to the support structure, a support arm on the sliding plate, the support arm passing through the beam and the mounting platform and connecting to the side wall of the concave base. This application reduces beam displacement, increases structural stability, and reduces the probability of beam falling during use by using lateral and longitudinal limiting and buffer structures.

Description

Technical Field

[0001] This utility model relates to the field of bridge safety technology, and in particular to a limiting anti-fall beam and seismic blocking block device. Background Technology

[0002] With the rapid development of modern transportation infrastructure, the safety performance requirements of bridges in natural disasters such as earthquakes are increasingly stringent. Specifically, traditional bridge seismic blocks mostly use simple concrete or steel structures, achieving the function of limiting the foundation through fixed installation. Although these blocks are convenient to construct, they have many shortcomings in practical applications: First, their anti-fall-off performance is limited. Under strong dynamic loads such as earthquakes, the bridge beam is prone to overturning or slipping due to severe vibrations, and traditional blocks often cannot provide effective restraint, thus posing a risk of beam collapse accidents. Second, existing blocks mostly adopt a unidirectional restraint design, usually only restricting the longitudinal or lateral displacement of the beam, making it difficult to achieve multi-directional restraint in complex vibration environments. At the same time, due to the lack of buffering and energy dissipation mechanisms, earthquake energy is directly transmitted to the main structure such as the beam and piers, easily causing cracking, deformation, or even failure of structural components, exacerbating the degree of earthquake damage. In addition, traditional seismic blocks are mostly fixed structures with poor adjustment and adaptability, unable to be flexibly adjusted according to the differences in bridge span, load level, and regional seismic intensity. This not only limits the applicability of the device, but also makes it difficult for it to meet the needs of safe bridge operation during long-term service. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies, where traditional stop blocks mostly adopt a single-direction limiting design, which cannot cope with the multi-directional constraints of bridges during earthquakes and lack a buffer mechanism, resulting in the direct transmission of seismic energy to the beam and causing cracking of structural components. This invention provides a limiting anti-fall beam seismic stop block device.

[0004] In a first aspect, the present invention provides a limiting anti-fall beam and seismic blocking block device, including a concave base, a mounting platform mounted on the concave part of the concave base, the mounting platform being used to place the beam, and a buffer structure between the lower bottom surface of the mounting platform and the concave base. The limiting anti-fall beam seismic blocking device also includes a support structure, which is vertically installed inside the beam cavity; The limiting anti-fall beam seismic blocking device also includes a sliding structure, which includes a sliding plate that is sleeved with the supporting structure. A lifting structure is provided below the sliding plate, with one end of the lifting structure connected to the sliding plate and the other end connected to the supporting structure. A support arm is provided on the sliding plate, which passes through the beam and the mounting platform in sequence and is connected to the side wall of the concave base.

[0005] This utility model provides a limiting anti-fall beam seismic blocking device, including a mounting platform on a concave base for supporting the beam. A buffer structure is also provided between the lower surface of the mounting platform and the concave base to absorb some of the seismic waves transmitted from the concave base to the mounting platform and then to the beam. The device also includes a sliding plate mounted on a support structure, with support arms at both ends that pass sequentially through the beam, the mounting platform, and the concave base. A lifting structure is located below the sliding plate. During an earthquake, the lifting device raises the sliding plate, causing it to slide upwards on the support structure, and the support arms slide accordingly. Since the beam may bounce or lift during an earthquake, the support structure, sliding plate, and lifting device are all located within the cavity of the beam. Specifically, the lifting device is located below the sliding plate, with one end connected to one side of the support structure and the other end connected to the bottom of the sliding plate, allowing the lifting device to... The lifting mechanism enables the support arm on the sliding plate to move longitudinally. When the support arm moves longitudinally to its maximum stroke, the movement of the beam is constrained by the cooperation of the support structure, the sliding plate, and the support arm, thereby reducing the lifting or jumping of the beam under seismic action. Since the base in this application is a concave base, and the mounting platform is located in the concave part of the base, part of the beam is also located in the concave part. When the support arm passes through the beam and the mounting platform in sequence and connects to the outer wall of the concave base, it can generate lateral constraint on the entire beam. This application limits the longitudinal displacement of the beam through the support structure, the support arm, and the lifting device, and limits the lateral displacement of the beam through the connection between the support arm and the outer wall of the concave base. A buffer structure is also set between the concave base and the mounting platform to absorb some of the longitudinal seismic waves. During the use of the beam, this application reduces the displacement of the beam, increases the structural stability of the beam, and reduces the probability of beam falling by using lateral and longitudinal limiting and buffer structures.

[0006] Preferably, the concave base includes a first base plate, and a pair of first side plates are provided on the side of the first base plate facing the mounting platform. The mounting platform includes a second base plate, and a pair of second side plates are provided on the second base plate facing the beam.

[0007] The concave base forms a closed or semi-closed support space through the first base plate and a pair of first side plates, which can effectively support the mounting platform, enhance the contact area and stress stability between the base and the mounting platform, and prevent the beam from lateral displacement or tilting during vibration.

[0008] Preferably, the first base plate has a reinforcing rod on the side facing the mounting platform, and the second base plate has a snap-fit ​​member on the side facing the first base plate. The snap-fit ​​member snaps into the reinforcing rod, and the buffer structure is disposed between the snap-fit ​​member and the reinforcing rod.

[0009] The reinforcing rods on the first base plate and the snap-fit ​​parts on the second base plate are snapped together to form a rigid connection, making the load-bearing system between the platform and the base more stable and reducing displacement caused by vibration. The buffer structure is set between the reinforcing rods and the snap-fit ​​parts, which can absorb and disperse part of the impact force when the beam is subjected to earthquake or high-frequency vibration, reducing the impact energy directly transmitted to the beam, achieving a buffering and shock absorption effect, and protecting the beam and the main structure of the bridge.

[0010] Preferably, a first through groove is provided on the first side plate, and a second through groove is provided on the second side plate.

[0011] The first through slot on the first side plate and the second through slot on the second side plate provide channels for the support arm or other connecting parts, making the insertion and fixing between the beam, the mounting platform and the base smoother and simplifying the installation operation.

[0012] Preferably, the inner wall of the second through groove is provided with a slot at the end away from the first base plate, and the size of the slot is adapted to the size of the support arm.

[0013] The slot allows the outrigger to be stably engaged with the second through slot after it is raised.

[0014] Preferably, the support structure includes a lower base plate, a vertical rod is provided above the lower base plate, and an upper top plate is provided at the end of the vertical rod away from the lower base plate. The lower base plate abuts against the bottom of the beam cavity, and the upper top plate abuts against the top of the beam cavity.

[0015] The bottom plate, vertical rods, and top plate form a three-dimensional support frame, which compresses the beam from top to bottom within the cavity and provides support in the middle, forming a stable support system and enhancing the beam's load-bearing capacity under vibration or earthquake.

[0016] Preferably, the sliding plate is sleeved with the vertical rod.

[0017] Preferably, the side of the sliding plate away from the lower base plate is provided with a reinforcing frame.

[0018] A reinforcing frame is installed to enhance the structural strength of the sliding plate.

[0019] Preferably, a pin is provided at the end of the support arm away from the sliding plate, and the support arm is connected to the first side plate through the pin.

[0020] By using pins, the support arm and the first side plate can be connected by pins. In the event of excessive earthquake vibration, the pins will break under force and absorb some of the vibration energy, reducing the vibration on the main body of the bridge and thus reducing the damage to the main body of the bridge.

[0021] Preferably, the buffer structure is a flexible structural component.

[0022] In this application, slots are also provided on both sides of the beam facing the first side plate for the support arm to pass through.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a limiting anti-fall beam seismic blocking device, including a mounting platform on a concave base for mounting the beam. A buffer structure is provided between the lower surface of the mounting platform and the concave base to absorb some of the seismic waves transmitted from the concave base to the mounting platform and then to the beam. The device also includes a sliding plate mounted on a support structure, with support arms at both ends that pass through the beam, the mounting platform, and the concave base. A lifting structure is provided below the sliding plate. During an earthquake, the lifting device raises the sliding plate, causing it to slide upwards on the support structure, and the support arms slide along with it. Since the beam may bounce or lift during an earthquake, the support structure, sliding plate, and lifting device are all located within the cavity of the beam. Specifically, the lifting device is located below the sliding plate, with one end connected to one side of the support structure and the other end connected to the bottom of the sliding plate, allowing the lifting device to... The lifting mechanism enables the support arm on the sliding plate to move longitudinally. When the support arm moves longitudinally to its maximum stroke, the movement of the beam is constrained by the cooperation of the support structure, the sliding plate, and the support arm, thereby reducing the lifting or jumping of the beam under seismic action. Since the base in this application is a concave base, and the mounting platform is located in the concave part of the base, part of the beam is also located in the concave part. When the support arm passes through the beam and the mounting platform in sequence and connects to the outer wall of the concave base, it can generate lateral constraint on the entire beam. This application limits the longitudinal displacement of the beam through the support structure, the support arm, and the lifting device, and limits the lateral displacement of the beam through the connection between the support arm and the outer wall of the concave base. A buffer structure is also set between the concave base and the mounting platform to absorb some of the longitudinal seismic waves. During the use of the beam, this application reduces the displacement of the beam, increases the structural stability of the beam, and reduces the probability of beam falling by using lateral and longitudinal limiting and buffer structures. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the limiting anti-fall beam seismic blocking block device of this utility model after installation with the beam body; Figure 2 This is a schematic diagram of the concave base in this utility model; Figure 3 This is a cross-sectional schematic diagram showing the connection between the mounting platform, beam, and supporting structure in this utility model. Figure 4 This is a cross-sectional view of the connection between the reinforcing rod, the buffer structure, and the snap-fit ​​component in this utility model.

[0024] The markings in the diagram are: 1-Concave base; 11-First base plate; 12-First side plate; 121-First through slot; 13-Reinforcing rod; 2-Mounting platform; 21-Second base plate; 22-Second side plate; 221-Second through slot; 23-Snap-fit ​​component; 3-Support structure; 31-Lower base plate; 32-Vertical rod; 33-Upper top plate; 4-Sliding structure; 41-Sliding plate; 42-Support arm; 421-Pin; 43-Reinforcing frame; 5-Buffer structure; 6-Lifting structure. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0026] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0028] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0029] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0030] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0031] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 The device shown is a limiting anti-fall beam seismic blocking device, including a concave base 1 composed of a first base plate 11 and a pair of first side plates 12, with the first side plates 12 disposed above the first base plate 11. The first side plates 12 and the first base plate 11 form a concave portion. The concave base 1 is supported by a mounting platform 2 through the concave portion, and the beam is supported by the mounting platform 2. A buffer structure 5 is provided between the mounting platform 2 and the first base plate 11. The buffer device enables that during an earthquake, some seismic waves are absorbed by the buffer structure 5 as they are transmitted from the concave base 1 to the mounting platform 2 and then to the beam. A vertical support structure 3 is provided in the cavity of the beam. The top of the support structure 3 abuts against the top of the beam cavity, and the bottom of the support structure 3 abuts against the bottom of the beam cavity. A sliding plate 41 is sleeved on the support structure 3, and the sliding plate 41 can move up and down within the beam cavity. The sliding plate 41 is provided with a support arm 42, which passes through the beam and the mounting platform 2 in sequence and connects to the side wall of the concave base 1. Furthermore, the mounting platform 2 includes a second base plate 21, and the second base plate 21 is provided with a pair of second side plates 22 in the direction of the beam. The first side plate 12 is provided with a first through groove 121, and the second side plate 22 is provided with a second through groove 221. One end of the support arm 42 is connected to the sliding plate 41, and the other end passes through the second through groove 221 and the first through groove 121 in sequence and then connects to the first side plate 12.

[0032] In one or more embodiments, a reinforcing rod 13 is provided on the side of the first base plate 11 facing the mounting platform 2, and a snap-fit ​​member 23 is provided on the side of the second base plate 21 facing the first base plate 11. The snap-fit ​​member 23 snaps into the reinforcing rod 13. A buffer structure 5 is disposed between the snap-fit ​​member 23 and the reinforcing rod 13. The reinforcing rod 13 on the first base plate 11 and the snap-fit ​​member 23 on the second base plate 21 snap into each other to form a rigid connection, making the load-bearing system between the mounting platform 2 and the base more stable and reducing the displacement caused by vibration. The buffer structure 5 is disposed between the reinforcing rod 13 and the snap-fit ​​member 23, which can absorb and disperse part of the impact force when the beam is subjected to earthquake or high-frequency vibration, reduce the impact energy directly transmitted to the beam, achieve the buffering and shock absorption effect, and protect the beam and the main structure of the bridge. Furthermore, the buffer structure 5 can be made of flexible rubber. The buffer structure 5 is laid on the surface of the reinforcing rod 13. The snap-fit ​​member 23 has a snap-fit ​​groove on the side facing the reinforcing rod 13. The snap-fit ​​groove allows the snap-fit ​​member 23 to snap into the reinforcing rod 13. The buffer structure 5 is located at the snap-fit ​​position between the snap-fit ​​member 23 and the reinforcing rod 13, buffering a portion of the seismic waves transmitted from the concave base 1 to the mounting platform 2. Figure 4 As shown.

[0033] In one or more embodiments, the inner wall of the second through groove 221 is provided with a slot at the end away from the first base plate 11. The size of the slot is adapted to the size of the support arm 42. The slot enables the support arm 42 to be stably engaged with the second through groove 221 after it is raised.

[0034] In one or more embodiments, a pad block is also provided above the first base plate 11; Optionally, the pad is a bridge support.

[0035] In one or more embodiments, the support structure 3 includes a lower base plate 31, a vertical rod 32 is provided above the lower base plate 31, and an upper top plate 33 is provided at the end of the vertical rod 32 away from the lower base plate 31. The lower base plate 31 abuts against the bottom of the beam cavity, and the upper top plate 33 abuts against the top of the beam cavity. The lower base plate 31, the vertical rod 32 and the upper top plate 33 constitute a three-dimensional support frame, so that the beam is pressed tightly from top to bottom in the cavity and supported in the middle, forming a stable support system and enhancing the load-bearing capacity of the beam under vibration or earthquake. Furthermore, the sliding plate 41 is sleeved with the vertical rod 32, as follows: Figure 1 and Figure 3 As shown.

[0036] In one or more embodiments, a reinforcing frame 43 is provided on the side of the sliding plate 41 away from the lower base plate 31. The reinforcing frame 43 strengthens the structural strength of the sliding plate 41. Figure 3 As shown.

[0037] In one or more embodiments, a pin 421 is provided at the end of the support arm 42 away from the sliding plate 41. The support arm 42 is connected to the first side plate 12 via the pin 421. By providing the pin 421, the support arm 42 and the first side plate 12 can be connected via the pin 421. Furthermore, in the event of excessive earthquake vibration, the pin 421 breaks under force, absorbing some of the vibration energy, reducing the vibration experienced by the bridge structure, thereby reducing damage to the bridge structure. Figure 1 and Figure 3 As shown.

[0038] In one or more embodiments, the buffer structure 5 is a flexible structural component.

[0039] In one or more embodiments, the sliding plate 41 is provided with a through hole that is compatible with the vertical rod 32, and the sliding plate 41 is sleeved with the vertical rod 32 through the through hole.

[0040] In this application, slots are also provided on both sides of the beam facing the first side plate for the support arm 42 to pass through.

[0041] 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 and improvements 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 limiting and anti-fall beam seismic blocking device, characterized in that, Includes a concave base (1), with a mounting platform (2) mounted on the concave part of the concave base (1), the mounting platform (2) being used to place the beam, and a buffer structure (5) between the bottom surface of the mounting platform (2) and the concave base (1). The limiting anti-fall beam seismic blocking device also includes a support structure (3), which is vertically installed in the cavity of the beam. The limiting anti-fall beam seismic blocking device also includes a sliding structure (4), the sliding structure (4) includes a sliding plate (41), the sliding plate (41) is sleeved with the support structure (3), a lifting structure (6) is provided below the sliding plate (41), one end of the lifting structure (6) is connected to the sliding plate (41) and the other end is connected to the support structure (3), a support arm (42) is provided on the sliding plate (41), the support arm (42) passes through the beam and the mounting platform (2) in sequence and is connected to the side wall of the concave base (1).

2. The anti-fall beam and seismic blocking device according to claim 1, characterized in that, The concave base (1) includes a first base plate (11), and a pair of first side plates (12) are provided on the side of the first base plate (11) facing the mounting platform (2). The mounting platform (2) includes a second base plate (21), and a pair of second side plates (22) are provided on the second base plate (21) facing the beam.

3. The anti-fall beam and seismic blocking device according to claim 2, characterized in that, The first base plate (11) is provided with a reinforcing rod (13) on the side facing the mounting platform (2), and the second base plate (21) is provided with a snap-fit ​​member (23) on the side facing the first base plate (11). The snap-fit ​​member (23) snaps into the reinforcing rod (13), and the buffer structure (5) is disposed between the snap-fit ​​member (23) and the reinforcing rod (13).

4. The anti-fall beam and seismic blocking device according to claim 2, characterized in that, The first side plate (12) has a first through groove (121), and the second side plate (22) has a second through groove (221).

5. The anti-fall beam and seismic blocking device according to claim 4, characterized in that, The inner wall of the second through groove (221) is provided with a slot at one end away from the first base plate (11), and the size of the slot is adapted to the size of the support arm (42).

6. The anti-fall beam and seismic blocking device according to claim 1, characterized in that, The supporting structure (3) includes a lower base plate (31), a vertical rod (32) is provided above the lower base plate (31), and an upper top plate (33) is provided at the end of the vertical rod (32) away from the lower base plate (31). The lower base plate (31) abuts against the bottom of the beam cavity, and the upper top plate (33) abuts against the top of the beam cavity.

7. The anti-fall beam and seismic blocking device according to claim 6, characterized in that, The sliding plate (41) is sleeved with the vertical rod (32).

8. The anti-fall beam and seismic blocking device according to claim 7, characterized in that, The sliding plate (41) is provided with a reinforcing frame (43) on the side away from the lower base plate (31).

9. A limiting anti-fall beam seismic blocking block device according to any one of claims 2-5, characterized in that, The support arm (42) is provided with a pin (421) at one end away from the sliding plate (41), and the support arm (42) is connected to the first side plate (12) through the pin (421).

10. A limiting anti-fall beam seismic blocking block device according to any one of claims 1-8, characterized in that, The buffer structure (5) is a flexible structural component.

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