Railway bridge anti-falling beam connecting device based on energy consumption damper

Abstract

The invention discloses a railroad bridge anti-falling beam connecting device based on an energy dissipation damper, and relates to the technical field of bridge construction.The railroad bridge anti-falling beam connecting device based on the energy dissipation damper comprises a bridge pier pre-embedded assembly, and a fixing frame is arranged on the front side of the bridge pier pre-embedded assembly; bolts on the bridge pier pre-embedded assembly penetrate through the fixing frame and are in threaded connection with nuts so that the fixing frame can be fixed, and a damper body is connected to the fixing frame. The locking mechanism is arranged at the bottom of the fixing frame, the locking mechanism is provided with a locking rod, and the locking mechanism can control the locking rod to move up and down and be fixed to the set position so that the nut can be locked. The energy consumption damper assembly can be conveniently disassembled, assembled and replaced while it is ensured that the energy consumption damper cannot get loose when used.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a railway bridge anti-fall beam connection device based on an energy-dissipating damper. Background Technology

[0002] Railway bridge anti-falling beam energy dissipation dampers are vibration reduction devices specifically designed for railway bridges. They dissipate vibration energy by providing motion resistance, preventing the beam from falling off due to earthquakes or excessive deformation. Their structure is usually composed of oil dampers and steel hysteresis dampers connected in series. They can work under temperature deformation, moderate earthquake and strong earthquake conditions through slow deformation accommodation, deformation suppression and locking and limiting mechanisms, effectively reducing the relative displacement of piers and beams and reducing the seismic response of the structure. They have multiple functions of energy dissipation, limiting and preventing beam fall.

[0003] In railway bridge anti-falling beam devices, energy-dissipating dampers are commonly used to improve seismic performance. In existing technologies, energy-dissipating dampers are generally fixed to the main beam and pier by welding. When the damper is damaged due to long-term service, such as hydraulic oil leakage, piston seal failure, or cylinder plastic deformation, large cutting equipment must be used to remove the connection nodes, and even the pre-embedded anchors must be destructively dismantled. The maintenance process not only requires interruption of railway operation, but also involves high-altitude operations that are difficult and time-consuming, increasing maintenance costs and making it unsuitable for use.

[0004] Therefore, there is an urgent need to design a technical solution that can facilitate the disassembly and replacement of energy dissipation damper components while ensuring that the energy dissipation damper does not come loose during use. Summary of the Invention

[0005] The purpose of this invention is to provide a railway bridge anti-fall beam connection device based on an energy dissipation damper to solve the problems existing in the prior art. It can ensure that the energy dissipation damper will not come loose during use, while facilitating the disassembly and replacement of the energy dissipation damper components.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] This invention provides a railway bridge anti-fall beam connection device based on an energy-dissipating damper, comprising:

[0008] A bridge pier pre-embedded component, wherein a fixing frame is provided on the front side of the bridge pier pre-embedded component, and bolts on the bridge pier pre-embedded component pass through the fixing frame and are threaded with nuts to fix the fixing frame, and a damper body is connected to the fixing frame;

[0009] A locking mechanism is provided at the bottom of the fixing frame. The locking mechanism is equipped with a locking rod. The locking mechanism can control the locking rod to move up and down and fix it at a set position to lock the nut.

[0010] Preferably, the top of the locking rod is provided with a shaped groove with an opening at the top. When the locking rod moves to the point where the inner side wall of the shaped groove abuts against the outer side wall of the corresponding nut, the nut can be locked.

[0011] Preferably, the locking mechanism includes a quick-release fixing assembly, which includes a fixed housing fixedly disposed at the bottom of the fixing frame. The fixed housing has a horizontally arranged movable plate inside. The bottom of the locking rod passes through the top of the fixed housing and is fixedly connected to the movable plate. The bottom of the fixed housing has an adjustment mechanism that can drive the movable plate to move to a set position within the fixed housing and fix it.

[0012] Preferably, the adjustment mechanism includes a control block, the top of which is fixedly connected to the bottom of the movable plate. Two inclined adjustment slots are formed on the front side of the control block, with opposite inclination directions and symmetrical arrangement. An adjustment rod is slidably disposed within each adjustment slot, and a threaded sleeve is fixedly connected to the bottom of the adjustment rod. A horizontally arranged screw rod passes through the fixed housing, one end of which penetrates the side wall of the fixed housing and is connected to a driving device. A screw rod is movably connected to the left side of the inner cavity of the fixed housing. The screw rod has a first thread and a second thread with opposite directions of rotation. Two threaded sleeves are respectively fitted onto the first and second threads of the screw rod. The driving device can drive the screw rod to rotate. The control block can cooperate with the adjustment slots and the adjustment rod to control the height of the movable plate. The screw rod can cooperate with the threaded sleeve to control the movement of the adjustment rod. The lateral displacement of the adjustment rod controls the adjustment of the movable plate and the locking rod.

[0013] Preferably, a slider is fixedly connected to the bottom of the threaded sleeve, and a groove is provided at the bottom of the fixed shell. The groove is arranged parallel to the screw, and the slider is slidably disposed in the groove. The slider and the groove are used to improve the stability of the threaded sleeve during movement and prevent it from rotating during movement.

[0014] Preferably, vertically arranged guide grooves are provided on both sides of the movable plate, and guide strips are slidably connected to the inner walls of the guide grooves. The side of the guide strip away from the corresponding guide groove is fixedly connected to the inner wall of the fixed shell. The guide grooves and guide strips can limit the movable plate, enabling it to move up and down smoothly and preventing it from tilting or deviating during movement.

[0015] Preferably, the locking mechanism further includes an anti-loosening locking component, which is disposed on the fixed housing and can fix the movable plate at a set position.

[0016] Preferably, the anti-loosening locking assembly includes a vertically arranged slide rod, the bottom of which is fixedly connected to the bottom of the inner wall of the fixed housing. A sliding sleeve is fitted on the slide rod, and a threaded shell is fixedly provided on one side of the sliding sleeve. The threaded shell has a threaded groove with a bottom opening, which can engage with the first or second thread of the screw. An elastic element is fitted on the slide rod, the top of which abuts against the top of the inner wall of the fixed housing, and the bottom of which abuts against the top of the sliding sleeve. An adjustment assembly penetrating the side wall of the fixed housing is fixedly connected to one side of the sliding sleeve. The adjustment assembly is used to drive the threaded shell to squeeze the elastic element and disengage from the screw, so that the operator can control the height of the sliding sleeve and the threaded shell and prevent the threaded shell from engaging with the threaded surface of the screw.

[0017] Preferably, the movable plate has a sliding through hole, and the top of the slide rod passes through the sliding through hole and is fixedly connected to the inner top wall of the fixed shell. The sliding through hole can cooperate with the slide rod to further increase the stability of the movable plate during downward movement, so that it can be smoothly adjusted up and down.

[0018] Preferably, a reinforcing connecting block is fixedly connected to the bottom of the outer side wall of the fixing frame, and the bottom of the reinforcing connecting block is fixedly connected to the fixing shell. The reinforcing connecting block is used to increase the stability of the connection between the fixing frame and the fixing shell and prevent the fixing shell and the fixing frame from becoming loose.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] This invention employs a detachable connection between the damper body and the bridge pier. A pre-embedded component is installed at the pier to achieve a fixed connection. This pre-embedded component secures the damper body's mounting frame to the pier using bolts and nuts, creating a detachable connection structure between the pier and the damper body. Compared to the existing method of welding the damper body to the pier, this is much easier to disassemble. Furthermore, the invention includes a locking mechanism at the bottom of the mounting frame to lock the nut on the bolt, preventing the nut from shifting or falling off during vibration. When disassembling the damper body is required, simply release the locking mechanism from the nut and unscrew it from the bolt to disassemble the damper body from the mounting frame, facilitating maintenance. Attached Figure Description

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

[0022] Figure 1 This is a perspective view of a railway bridge anti-fall beam connection device based on an energy-dissipating damper according to one or more embodiments of the present invention.

[0023] Figure 2 This is a schematic diagram of the fixing shell and fixing frame in a railway bridge anti-fall beam connection device based on an energy-dissipating damper according to one or more embodiments of the present invention.

[0024] Figure 3 This is a cross-sectional view of the fixed shell in a railway bridge anti-fall beam connection device based on an energy-dissipating damper according to one or more embodiments of the present invention.

[0025] Figure 4 This is a schematic diagram of a quick-release fixing component in a railway bridge anti-fall beam connection device based on an energy-dissipating damper according to one or more embodiments of the present invention.

[0026] Figure 5 This is a schematic diagram of the anti-loosening locking component in a railway bridge anti-fall beam connection device based on an energy-dissipating damper according to one or more embodiments of the present invention.

[0027] In the attached diagram: 1-Pier embedded component; 2-Fixing frame; 3-Nut; 4-Damper body; 5-Quick release fixing component; 51-Fixing shell; 52-Modible plate; 53-Locking rod; 54-Adjusting mechanism; 6-Anti-loosening locking component; 61-Slide rod; 62-Spring; 63-Slide sleeve; 64-Threaded shell; 65-Toggle rod; 541-Control block; 542-Adjusting groove; 543-Adjusting rod; 544-Screw; 545-Threaded sleeve; 7-Knob. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The purpose of this invention is to provide a railway bridge anti-fall beam connection device based on an energy dissipation damper to solve the problems existing in the prior art. It can ensure that the energy dissipation damper will not come loose during use, while facilitating the disassembly and replacement of the energy dissipation damper components.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In existing technologies, energy-dissipating dampers are typically fixed to the main beam and piers by welding. When the damper suffers damage to its energy-dissipating components due to long-term service, such as hydraulic oil leakage, piston seal failure, or cylinder plastic deformation, large cutting equipment must be used to remove the connection nodes, and sometimes even pre-embedded anchors need to be destructively dismantled. This maintenance process not only interrupts railway operations but also involves difficult and time-consuming high-altitude work, increasing maintenance costs and hindering usability. To address this problem, this invention provides a railway bridge anti-fall beam connection device based on an energy-dissipating damper. While ensuring a secure connection, it achieves a detachable connection between the energy-dissipating damper and the pier. (See attached diagram.) Figure 1 ~Attached Figure 5 As shown, its structure includes: a pier pre-embedded component 1, a fixing frame 2 on the front side of the pier pre-embedded component 1, bolts on the pier pre-embedded component 1 passing through the fixing frame 2 and threadedly connected to nuts 3 to fix the fixing frame 2, and a damper body 4 connected to the fixing frame 2 to achieve detachable connection of the damper body 4. Since the energy-dissipating damper needs to withstand vibration loads, during use, the nuts 3 on the bolts are prone to misalignment or movement due to vibration, which may cause instability or detachment of the connection structure. Based on this, the present invention designs a locking mechanism. The locking mechanism is located at the bottom of the fixing frame 2 and has a locking rod 53. The locking mechanism can control the locking rod 53 to move up and down and fix it at a set position to lock the nuts 3. This invention detachably connects the damper body 4 to the bridge pier. A pre-embedded component 1 is installed at the bridge pier to achieve a fixed connection. The pre-embedded component 1 secures the damper body 4 to the bridge pier using bolts and nuts, thus realizing a detachable connection structure between the bridge pier and the damper body 4. Compared to the welding method used in the prior art, this method facilitates disassembly. Furthermore, the invention includes a locking mechanism at the bottom of the fixing frame 2 to lock the nut 3 on the bolt, preventing the nut 3 from shifting or falling off during vibration. When disassembling the damper body 4, simply release the locking mechanism from the nut 3 and unscrew the nut from the bolt to disassemble the damper body from the fixing frame, facilitating maintenance.

[0032] Example 1

[0033] Please see Figures 1-5This embodiment provides a railway bridge anti-fall beam connection device based on an energy-dissipating damper, including a pier pre-embedded component 1 and a locking mechanism. The locking mechanism of this embodiment includes a quick-release fixing component 5. A fixing frame 2 is provided on the front side of the pier pre-embedded component 1. The bolt of the pier pre-embedded component 1 passes through the fixing frame 2 and is threadedly connected to a nut 3. A damper body 4 is movably connected to the front side of the fixing frame 2. The quick-release fixing component 5 includes a fixing shell 51. The top of the fixing shell 51 is fixedly connected to the fixing frame 2. A movable plate 52 is provided inside the fixing shell 51. Locking rods 53 are fixedly connected to both sides of the top of the movable plate 52. The top of the locking rods 53 passes through the fixing shell 51. The top has an irregularly shaped groove with an opening at the top, the cross-sectional shape of which matches the cross-sectional shape of the nut. When the locking rod moves to the inner side wall of the irregularly shaped groove and abuts against the corresponding outer side wall of the nut, the irregularly shaped groove is precisely engaged with the outer side of the nut, thus locking the nut. The bottom of the movable plate 52 is fixedly connected to an adjustment mechanism 54. In this embodiment, the adjustment mechanism 54 can be a cylinder, an electric push rod, etc., which can drive the movable plate 52 to move up and down to a set position and keep it fixed. Alternatively, a slide rail and slider structure can be used, with the slider moving up and down along the slide rail, thereby driving the movable plate 52 connected to the slider to move up and down. After moving to the set position, the slider is fixed to the slide rail by a locking pin, thus achieving the locking effect.

[0034] The bolts of the pier pre-embedded component 1 can cooperate with the nut 3 to install and fix the fixing frame 2. The fixing frame 2 facilitates the installation of the damper body 4, enabling it to be installed between the bridge and the pier. The movable plate 52 allows the locking rod 53 to move up and down easily. The locking rod 53 can lock the nut 3 to prevent it from loosening. The adjustment mechanism 54 can control the height of the movable plate 52, improving the stability of the damper body 4 installation. When disassembling, the movable plate 52 is driven down so that the locking rod 53 is no longer engaged with the nut 3. The operator can directly use an electric wrench to disassemble the fixing shell 51.

[0035] Example 2

[0036] Please see Figure 1-5This embodiment is a further improvement based on Embodiment 1. The adjustment mechanism 54 in this embodiment includes a control block 541. The top of the control block 541 is fixedly connected to the movable plate 52. Taking the view in the attached figure as an example, adjustment grooves 542 are provided on both sides of the front side of the control block 541. An adjustment rod 543 is provided in the inner cavity of the adjustment groove 542. A screw 544 is movably connected to the left side of the inner cavity of the fixed shell 51. The two sides of the surface of the screw 544 are provided with a first thread and a second thread with opposite directions of rotation. Both the first thread and the second thread are threadedly connected to a threaded sleeve 545. Its structure and movement principle are the same as those of the lead screw and nut pair. When the screw 544 rotates... The threaded sleeve 545 can move along the axis of the screw 544; the top of the threaded sleeve 545 is fixedly connected to the adjusting rod 543; the right side of the screw 544 passes through the fixed shell 51 and is fixedly connected to a driving device. In this embodiment, the driving device is a knob 7; the left side of the screw 544 is movably connected to the inner wall of the fixed shell 51 through a bearing; the bottom of the threaded sleeve 545 is fixedly connected to a slider; both sides of the bottom of the inner cavity of the fixed shell 51 are provided with sliding grooves that cooperate with the sliders; both sides of the movable plate 52 are provided with guide grooves; the inner wall of the guide groove is slidably connected to a guide bar; the side of the two guide bars away from the corresponding guide groove is fixedly connected to the inner wall of the fixed shell 51.

[0037] The locking assembly in this embodiment also includes an anti-loosening locking assembly 6, which includes two slide rods 61. The bottom of the slide rods 61 is fixedly connected to the inner wall of the fixed housing 51. A spring 62 and a sliding sleeve 63 are sequentially fitted on the surface of the slide rods 61 from top to bottom. A threaded shell 64 is fixedly connected to the front side of the sliding sleeve 63. The slide rods 61 can facilitate the up and down movement of the sliding sleeve 63 and the threaded shell 64. The threaded shell 64 can mesh with the screw 544 to prevent the screw 544 from rotating and improve the stability of the damper body 4. The front side of the fixed housing 51 has a strip-shaped opening for the lever 65 to move up and down. Both sides of the rear side of the lever 65 penetrate the fixed housing 51 and are fixedly connected to the sliding sleeve 63. The bottom of both sides of the fixed frame 2 are fixedly connected to reinforcing connecting blocks. The bottom of the reinforcing connecting blocks is fixedly connected to the fixed housing 51. The top of the slide rods 61 penetrates the movable plate 52 and is fixedly connected to the inner wall of the fixed housing 51. Both sides of the bottom of the movable plate 52 have sliding through holes that cooperate with the slide rods 61.

[0038] The control block 541 can cooperate with the adjusting groove 542 and the adjusting rod 543 to control the working height of the movable plate 52. The screw 544 can cooperate with the threaded sleeve 545 to control the movement of the adjusting rod 543. The lateral displacement of the adjusting rod 543 controls the adjustment of the movable plate 52 and the locking rod 53. The knob 7 facilitates the operator to rotate the screw 544. The screw 544 with the first thread and the second thread being opposite can simultaneously control the threaded sleeve 545 to move to the opposite side or the opposite side. The bearing can increase the stability of the screw 544 during rotation. The slider and the groove are used to improve the stability of the threaded sleeve 545 during movement and prevent... To prevent rotation during movement, the guide groove and guide bar limit the movement of the movable plate 52, allowing it to move smoothly up and down and preventing tilting or deviation during movement. The lever 65 allows the operator to control the height of the sliding sleeve 63 and the threaded shell 64, preventing the threaded shell 64 from engaging with the thread on the surface of the screw 544. The reinforcing connecting block increases the stability of the connection between the fixed frame 2 and the fixed shell 51, preventing loosening between the fixed shell 51 and the fixed frame 2. The sliding through hole can cooperate with the slide rod 61 to further increase the stability of the movable plate 52 during downward movement, allowing it to be adjusted smoothly up and down.

[0039] The working principle of this embodiment is as follows: First, the bolts of the pier pre-embedded component 1 are passed through the fixing frame 2, and the nut 3 is tightened for fixation. Then, the lever 65 is manually lifted upwards and held in this state, so that the threaded shell is disengaged from the screw. Then, the knob 7 is operated to rotate the screw 544. Since the threads on both sides of the screw 544 are opposite, the two threaded sleeves 545 are driven to move synchronously in opposite directions. The threaded sleeves 545 drive the adjusting rod 543 to slide in the adjusting groove 542, pushing the control block 541 and the movable plate 52 to move upwards smoothly. The movable plate 52 drives the locking rod 53 to press tightly against the surface of the nut 3, completing the locking of the nut 3 and preventing it from loosening. Then, the lever 65 is released, and the elastic element in the anti-loosening locking component 6 pushes the sliding sleeve 63 to move along the sliding rod 61. In this embodiment, the elastic element is a spring 62. The sliding sleeve 63 drives the threaded shell 64 on its front side to move downwards and tighten with the thread on the surface of the screw 544. The screw 544 is tightly engaged, locking it in place and preventing it from rotating backward due to vibration or other reasons, which could cause the locking rod 53 to loosen. When the damper body 4 needs to be disassembled and replaced, first operate the lever 65 to lift the sliding sleeve 63 and compress the spring 62, so that the threaded shell 64 is disengaged from the screw 544 and the anti-loosening lock is released. Then, rotate the knob 7 in the opposite direction, and the screw 544 drives the two threaded sleeves 545 to move in opposite directions. The control block 541 and the movable plate 52 are pulled by the adjusting rod 543, so that the movable plate 52 drives the locking rod 53 to move down and disengage from the surface of the nut 3, releasing the locking constraint on the nut 3. At this time, the workers can directly use conventional tools to loosen and remove the nut 3, and then remove the fixing bracket 2 together with the damper body 4 from the bolts of the bridge pier pre-embedded component 1 for replacement or repair. The whole process does not require cutting or damaging any connecting parts, realizing the rapid and non-destructive disassembly of the damper body 4.

[0040] This invention utilizes a quick-release fixing component 5 and an adjusting mechanism to control the up-and-down movement of the movable plate 52, thereby causing the locking rod 53 to disengage from or tighten the nut 3. Combined with the operation of the knob 7 to drive the threaded sleeve 545 to move laterally, the adjusting rod 543 controls the lifting and lowering of the movable plate 52. During disassembly, simply rotating the knob quickly releases the locking rod's constraint on the nut. Workers can directly use power tools to disassemble the nut and fixing frame without using large cutting equipment or damaging the pre-embedded anchors. This reduces the difficulty and operation time of replacing and maintaining the damper body, reduces the risk of railway operation interruption and the cost of high-altitude operations, and achieves non-destructive and rapid disassembly of the damper body.

[0041] This invention utilizes the anti-loosening locking component 6, which employs the preload of spring 62 to move the sliding sleeve, causing the threaded shell 64 to tightly engage with the surface of the screw 544. This effectively prevents the screw 544 from accidentally rotating during bridge vibration or long-term use, thus preventing the locking rod from loosening and failing. Simultaneously, the lever allows manual control of the sliding sleeve to move and compress the spring, disengaging the threaded shell from the screw 544. This facilitates the operation of the adjustment mechanism and ensures that the nut is always firmly pressed by the locking rod under normal use conditions. This significantly improves the long-term reliability and anti-loosening performance of the connection device, reducing maintenance needs caused by loose connections.

[0042] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A railway bridge anti-fall beam connection device based on an energy-dissipating damper, characterized in that: include: A bridge pier pre-embedded component, wherein a fixing frame is provided on the front side of the bridge pier pre-embedded component, and bolts on the bridge pier pre-embedded component pass through the fixing frame and are threaded with nuts to fix the fixing frame, and a damper body is connected to the fixing frame; A locking mechanism is provided at the bottom of the fixing frame. The locking mechanism is equipped with a locking rod. The locking mechanism can control the locking rod to move up and down and fix it at a set position to lock the nut.

2. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 1, characterized in that: The locking rod has a shaped groove with an opening at the top. When the locking rod moves to the point where the inner wall of the shaped groove abuts against the outer wall of the corresponding nut, it can lock the nut.

3. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 1, characterized in that: The locking mechanism includes a quick-release fixing assembly, which includes a fixed shell fixedly disposed at the bottom of the fixing frame. A horizontally arranged movable plate is provided inside the fixed shell. The bottom of the locking rod passes through the top of the fixed shell and is fixedly connected to the movable plate. An adjustment mechanism is provided at the bottom of the fixed shell. The adjustment mechanism can drive the movable plate to move to a set position inside the fixed shell and fix it.

4. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 3, characterized in that: The adjustment mechanism includes a control block, the top of which is fixedly connected to the bottom of the movable plate. Two inclined adjustment slots are formed on the front side of the control block, with opposite inclination directions and symmetrical arrangement. An adjustment rod is slidably disposed within each adjustment slot, and a threaded sleeve is fixedly connected to the bottom of the adjustment rod. A horizontally arranged screw rod passes through the fixed housing, one end of which penetrates the side wall of the fixed housing and is connected to a driving device. A screw rod is movably connected to the left side of the inner cavity of the fixed housing. The screw rod has a first thread and a second thread with opposite directions of rotation. Two threaded sleeves are respectively fitted onto the first and second threads of the screw rod. The driving device can drive the screw rod to rotate.

5. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 4, characterized in that: The bottom of the threaded sleeve is fixedly connected to a slider, and a sliding groove is provided at the bottom of the fixed shell. The sliding groove is arranged parallel to the screw, and the slider is slidably disposed in the sliding groove.

6. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 3, characterized in that: Both sides of the movable plate are provided with vertically arranged guide grooves, and guide strips are slidably connected to the inner walls of the guide grooves. The side of the guide strip away from the corresponding guide groove is fixedly connected to the inner wall of the fixed shell.

7. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 4, characterized in that: The locking mechanism also includes an anti-loosening locking component, which is disposed on the fixed housing and can fix the movable plate at a set position.

8. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 7, characterized in that: The anti-loosening locking assembly includes a vertically arranged slide rod, the bottom of which is fixedly connected to the bottom of the fixed housing. A sliding sleeve is fitted on the slide rod, and a threaded shell is fixedly provided on one side of the sliding sleeve. The threaded shell has a threaded groove with a bottom opening, which can engage with the first or second thread of the screw. An elastic element is fitted on the slide rod, the top of which abuts against the top of the fixed housing, and the bottom of which abuts against the top of the sliding sleeve. An adjustment assembly that penetrates the side wall of the fixed housing is fixedly connected to one side of the sliding sleeve. The adjustment assembly is used to drive the threaded shell to squeeze the elastic element and disengage from the screw.

9. The railway bridge anti-fall beam connection device based on energy dissipation damper according to claim 8, characterized in that: The movable plate has a sliding through hole, and the top of the slide rod passes through the sliding through hole and is fixedly connected to the inner top wall of the fixed shell.

10. The railway bridge anti-fall beam connection device based on an energy-dissipating damper according to claim 3, characterized in that: A reinforcing connecting block is fixedly connected to the bottom of the outer side wall of the fixing frame, and the bottom of the reinforcing connecting block is fixedly connected to the fixing shell.

Images