An anti-overturning device for a bridge and a bridge

Abstract

The present application provides a bridge anti-overturning device and a bridge, belonging to the technical field of bridge construction. Among them, the bridge anti-overturning device includes a mounting seat and two traction mechanisms. The mounting seat is used to be fixed on the pier column. The two traction mechanisms are respectively arranged on both sides of the mounting seat in the width direction of the box girder. The traction mechanism includes a fixed seat, a moving member and a connecting rod. The fixed seat is used to be fixed on the bottom of the box girder. The moving member is movably connected to the fixed seat in the vertical direction, and both ends of the moving member respectively penetrate through both sides of the fixed seat in the vertical direction. Both ends of the connecting rod are respectively hinged to the mounting seat and the moving member. The moving member has an abutting portion, and the abutting portion is configured to abut against the fixed seat when the moving member moves downward relative to the fixed seat in the vertical direction to prevent the box girder from tilting. The bridge with such a bridge anti-overturning device can effectively reduce the risk of the box girder of the bridge overturning or tipping over, so as to reduce the potential safety hazards existing in the later use process of the bridge.

Description

Technical Field

[0001] This application relates to the technical field of bridge construction, and more particularly, to an anti-overturning device for bridges and a bridge. Background Art

[0002] A bridge generally refers to a structure erected over rivers, lakes, and seas to enable vehicles, pedestrians, etc. to pass smoothly. To adapt to the modern rapidly developing transportation industry, a bridge is also extended to a building that is erected across mountain gorges, poor geological conditions, or to meet other transportation needs to make passage more convenient. A bridge generally consists of an upper structure, a lower structure, bearings, and auxiliary structures. The upper structure, also known as the bridge span structure, is the main structure for crossing obstacles; the lower structure includes abutments, piers, and foundations; the bearings are load-transfer devices provided at the supporting points of the bridge span structure and the piers or abutments; the auxiliary structures refer to approach slabs, conical slopes, revetments, diversion works, etc.

[0003] There are various types of bridges. The single-column pier bridge has the advantage of small floor area. However, since the single-column pier bridge uses a single-point support, during the later use process, if the load on one side of the bridge deck is too high or it is affected by climate such as strong typhoons and earthquakes, the bridge deck (box girder) of the bridge is very likely to tilt, and even cause the entire bridge to overturn and roll over, resulting in a large safety hazard during the use of the bridge, and thus unable to ensure the safety of people during use, which is not conducive to use and promotion. Summary of the Invention

[0004] The embodiments of this application provide an anti-overturning device for bridges and a bridge to improve the problem that there are large safety hazards in the existing single-column pier bridges during use.

[0005] In a first aspect, the embodiments of this application provide an anti-overturning device for bridges. The bridge includes a pier column and a box girder, the box girder is erected on the top of the pier column, and a chamber is formed inside the box girder. The anti-overturning device for bridges includes a mounting seat and two traction mechanisms; the mounting seat is used to be fixed to the pier column; the two traction mechanisms are respectively arranged on both sides of the mounting seat in the width direction of the box girder. The traction mechanism includes a fixed seat, a moving member, and a connecting rod. The fixed seat is used to be fixed to the bottom of the box girder and extends into the chamber. The moving member is movably connected to the fixed seat in the vertical direction, and both ends of the moving member respectively penetrate through both sides of the fixed seat in the vertical direction. Both ends of the connecting rod are respectively hinged to the mounting seat and the moving member; wherein, the moving member has a abutting portion, and the abutting portion is configured to abut against the fixed seat when the moving member moves downward relative to the fixed seat in the vertical direction to prevent the box girder from tilting.

[0006] In the above technical solution, traction mechanisms are provided on both sides of the mounting base in the width direction of the box girder, so that the two traction mechanisms can be respectively connected to the parts of the box girder on both sides of the pier column, thereby enabling traction and stretching on both sides of the box girder in the width direction of the box girder. Among them, the traction mechanism is provided with a fixed seat, a moving member and a connecting rod. By connecting the fixed seat to the bottom of the box girder, the moving member is movably inserted into the fixed seat in the vertical direction, and both ends of the connecting rod are respectively hinged to the moving member and the mounting base, so that the abutting portion of the moving member can abut against the fixed seat when the box girder tilts. Thus, the traction mechanism with this structure realizes the traction and stretching of the box girder, effectively prevents further tilting of the box girder, and further can effectively reduce the risk of the box girder of the bridge tipping over or rolling over, reducing potential safety hazards in the later use process of the bridge and being conducive to ensuring the safety of people's use. In addition, the anti-overturning device of the bridge with this structure can also allow a slight vibration space margin for the box girder, thereby effectively alleviating the rigid pulling phenomenon between the box girder and the anti-overturning device of the bridge, and further being conducive to extending the service life of the anti-overturning device of the bridge and the box girder.

[0007] In addition, the anti-overturning device of the bridge provided by the embodiment of the present application further has the following additional technical features:

[0008] In some embodiments, the traction mechanism further includes an elastic member; the elastic member is connected to the abutting portion and the fixed seat, and the elastic member is configured to buffer the impact force between the abutting portion and the fixed seat.

[0009] In the above technical solution, by providing an elastic member between the abutting portion and the fixed seat, the elastic member can effectively buffer the rigid collision between the abutting portion and the fixed seat when the box girder tilts, thereby playing a good buffering role for the abutting portion and the fixed seat, and being conducive to playing a good shock-absorbing function for the box girder.

[0010] In some embodiments, an accommodation cavity is formed inside the fixed seat, and a part of the moving member is located in the accommodation cavity; the abutting portion is located in the accommodation cavity, and the abutting portion is configured to abut against the bottom wall of the accommodation cavity when the moving member moves downward relative to the fixed seat in the vertical direction; the elastic member is located in the accommodation cavity, and both ends of the elastic member in the vertical direction are respectively connected to the abutting portion and the top wall of the accommodation cavity.

[0011] In the above technical solution, a receiving cavity is arranged inside the fixed seat, and a part of the moving member is arranged in the receiving cavity. That is to say, the moving member is movably arranged in the receiving cavity in the vertical direction, and the abutting portion and the elastic member are both arranged in the receiving cavity. Thus, when the moving member moves downward relative to the fixed seat in the vertical direction, the abutting portion can abut against the bottom wall of the receiving cavity to exert a pulling and stretching effect on the box girder. The traction mechanism with this structure has high structural stability and is beneficial to improving the protection effect on the abutting portion and the elastic member, so as to reduce the risk of damage or corrosion of the abutting portion and the elastic member under the influence of the external environment.

[0012] In some embodiments, a limiting groove is formed on the side wall of the receiving cavity in the width direction of the box girder, and the limiting groove extends in the vertical direction; a limiting protrusion is arranged on the abutting portion, and the limiting protrusion is movably clamped in the limiting groove in the vertical direction.

[0013] In the above technical solution, by arranging a limiting groove extending in the vertical direction on the side wall of the receiving cavity and correspondingly arranging a limiting protrusion on the abutting portion of the moving member, so that the limiting protrusion can be movably clamped in the limiting groove in the vertical direction. Thus, on the one hand, it can play a good limiting role on the moving member to reduce the phenomenon of circumferential rotation of the moving member relative to the fixed seat, and on the other hand, it can play a good guiding role on the moving member to ensure that the moving member can move stably relative to the fixed seat in the vertical direction.

[0014] In some embodiments, the fixed seat is provided with a limiting block, and the limiting block is used for abutting against the bottom wall of the cavity.

[0015] In the above technical solution, by arranging a limiting block on the fixed seat for abutting against the bottom wall of the cavity, the connection reliability and structural stability between the fixed seat and the box girder can be effectively improved, so as to reduce the risk of the fixed seat detaching from the box girder in the vertical direction.

[0016] In some embodiments, the traction mechanism further includes a connecting seat, a detecting member and a driving assembly; the connecting seat is connected to the top end of the moving member in the vertical direction; the detecting member is arranged between the connecting seat and the fixed seat in the vertical direction, and the detecting member is configured to detect the pressure between the connecting seat and the fixed seat and generate a pressure signal; the driving assembly is electrically connected to the detecting member, and the driving assembly is configured to drive the connecting rod to swing downward relative to the mounting seat according to the pressure signal, so as to drive the moving member to move downward in the vertical direction.

[0017] In the above technical solution, a connecting seat is arranged at the top of the moving member, and a detecting member is arranged between the connecting seat and the fixed seat in the vertical direction. During actual use, when the box girder of the bridge tilts to one side along the width direction of the box girder, the other side of the box girder will drive the fixed seat of the corresponding traction mechanism to move upward in the vertical direction, so that the detecting member will be squeezed by the fixed seat and the connecting seat, enabling the detecting member to detect the pressure value between the fixed seat and the connecting seat and generate a corresponding pressure signal. Thus, the corresponding driving component can drive the corresponding connecting rod to swing downward relative to the mounting seat, driving the moving member to move downward relative to the fixed seat in the vertical direction, so that the abutting portion of the moving member can abut against the fixed seat and drive the fixed seat to move downward in the vertical direction. Furthermore, it can effectively prevent the box girder of the bridge from overturning or tipping over, and can play a certain corrective role on the box girder, which is beneficial to improving the anti-overturning ability of the bridge with such a bridge anti-overturning device.

[0018] In some embodiments, along the width direction of the box girder, a chute is formed on the side of the connecting rod facing the pier, and the chute extends along the extending direction of the connecting rod; the driving component includes a slider and a driving member; the slider is slidably clamped in the chute; the driving member is installed on the mounting seat, and the driving member is configured to drive the slider to move away from the mounting seat along the width direction of the box girder, so as to drive the connecting rod to swing downward relative to the mounting seat.

[0019] In the above technical solution, a chute is arranged on the side of the connecting rod facing the pier, and the chute extends along the extending direction of the connecting rod, so that the slider of the driving component can be slidably arranged in the chute. Thus, when the driving member drives the slider to move away from the mounting seat along the width direction of the box girder, the slider can apply a downward force in the vertical direction to the connecting rod, and then can drive the connecting rod to swing downward relative to the mounting seat. This structure is simple, has high stability, and is easy to implement.

[0020] In some embodiments, a guiding post protrudes from the bottom wall of the chamber, and a positioning hole extending in the vertical direction is formed at one end of the guiding post facing away from the bottom wall of the chamber; a positioning post protrudes from the side of the connecting seat facing the mounting seat in the vertical direction, and the positioning post is configured to be movably inserted into the positioning hole in the vertical direction.

[0021] In the above technical solution, a guiding post is arranged on the bottom wall of the chamber, and the guiding post is provided with a positioning hole extending in the vertical direction. Thus, by correspondingly arranging a positioning post on the connecting seat that is inserted and matched with the positioning hole, it is convenient to play a certain positioning role on the connecting seat, and can effectively alleviate the phenomenon of deflection of the connecting seat when the box girder tilts. Furthermore, it is beneficial to improve the use stability of the bridge anti-overturning device during later use.

[0022] In some embodiments, the mounting base includes a base body and a plurality of locking members; the base body is hinged to the connecting rod and is used to be fixed to the pier column. The base body extends along the circumferential direction of the pier column. A plurality of mounting holes are formed in the base body. The plurality of mounting holes are arranged at intervals along the circumferential direction of the pier column, and the mounting holes extend along the radial direction of the pier column; the locking members are arranged corresponding to the mounting holes. The locking members are inserted into the corresponding mounting holes, and the locking members are used to be inserted into the pier column to lock the base body to the pier column.

[0023] In the above technical solution, by providing a plurality of mounting holes arranged at intervals along the circumferential direction of the pier column on the base body of the mounting base, and providing a locking member corresponding to each mounting hole, the locking member can be inserted into the pier column when the base body is assembled to the pier column, so as to lock the base body to the pier column. The mounting base with this structure can effectively reduce the relative sliding phenomenon between the mounting base and the pier column in the vertical direction, so as to improve the structural stability and reliability of the mounting base fixed on the pier column, and further help to ensure the traction and stretching effect of the traction mechanism on the box girder, so as to improve the anti-overturning ability of the bridge.

[0024] In a second aspect, an embodiment of the present application further provides a bridge, including a pier column, a box girder, and the above-mentioned anti-overturning device for bridges; the box girder is erected on the top of the pier column, and a chamber is formed inside the box girder; the mounting base is fixed to the pier column, and the fixed seat of the traction mechanism is fixed to the bottom of the box girder and extends into the chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of a partial structure of the bridge provided by an embodiment of the present application;

[0027] Figure 2 is Figure 1 the front view of the bridge shown;

[0028] Figure 3 is Figure 2 the partial cross-sectional view of the bridge shown;

[0029] Figure 4 is Figure 3 the connection schematic diagram of the fixed seat and the moving member shown;

[0030] Figure 5 is Figure 3 a partial enlarged view of the bridge at location A as shown;

[0031] Figure 6 is Figure 2 a sectional view of the bridge at the pier column as shown.

[0032] Icon: 100 - bridge; 10 - pier column; 11 - support block; 12 - locking hole; 20 - box girder; 21 - chamber; 22 - guide post; 221 - positioning hole; 30 - bridge anti - overturning device; 31 - mounting seat; 311 - seat body; 3111 - mounting hole; 312 - locking member; 32 - traction mechanism; 321 - fixed seat; 3211 - accommodating cavity; 3212 - limiting groove; 3213 - limiting block; 322 - moving member; 3221 - abutting portion; 3222 - limiting protrusion; 323 - connecting rod; 3231 - sliding groove; 324 - elastic member; 325 - connecting seat; 3251 - positioning post; 326 - detecting member; 327 - driving assembly; 3271 - slider; 3272 - driving member; 40 - support seat; X - length direction of the box girder; Y - width direction of the box girder; Z - vertical direction. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] Embodiment

[0038] The embodiment of the present application provides a bridge, which can improve the phenomenon that when the existing single-column pier bridge has too high load on one side of the bridge deck or is affected by climate such as strong typhoons and earthquakes, the bridge deck (box girder) is extremely prone to tilt, and even cause the entire bridge to overturn and roll over, resulting in a large potential safety hazard during the use of the bridge, and thus unable to ensure the use safety of people, which is not conducive to use and promotion. The specific structure of the bridge will be elaborated in detail below with reference to the drawings.

[0039] Combined with Figure 1 and Figure 2 As shown, the bridge 100 includes a pier column 10, a box girder 20, and a bridge anti-overturning device 30. The box girder 20 is erected on the top of the pier column 10. A chamber 21 is formed inside the box girder 20, and the chamber 21 runs through both ends of the box girder 20 along the length direction X of the box girder. The bridge anti-overturning device 30 is arranged on the pier column 10 and connected to the bottom of the box girder 20.

[0040] Among them, the top of the box girder 20 forms a bridge deck for pedestrians to walk or vehicles to pass through.

[0041] Exemplarily, the pier column 10 is a single-column pier. The shape of the pier column 10 can be various, for example, a cylindrical structure or a polygonal column structure, etc.

[0042] The number of pier columns 10 is multiple, and the multiple pier columns 10 are arranged at intervals along the length direction X of the box girder. Correspondingly, the bridge anti-overturning device 30 can also be multiple. The bridge anti-overturning device 30 is provided corresponding to each pier column 10, and each pier column 10 is provided with a bridge anti-overturning device 30.

[0043] Furthermore, the bridge 100 further includes a plurality of support seats 40. The support seats 40 are provided corresponding to each pier column 10. The support seats 40 are arranged on the top of the pier column 10 and are located between the pier column 10 and the box girder 20 in the vertical direction Z, so that the box girder 20 is erected on the pier column 10 through the support seats 40. The specific structure of the support seats 40 can refer to the related art and will not be elaborated here.

[0044] Optionally, two supporting blocks 11 are further protruded from the top of the pier column 10. The two supporting blocks 11 are respectively located on both sides of the supporting seat 40 along the width direction Y of the box girder. The supporting blocks 11 are used to support the box girder 20. In the pier column 10 with such a structure, when the box girder 20 is inclined, the supporting blocks 11 can play a certain role in limiting and supporting the box girder 20, so as to reduce the risk of further inclination of the box girder 20 and effectively relieve the speed of the box girder 20 from tipping over.

[0045] In this embodiment, in combination with Figure 2 and Figure 3 as shown, the anti-overturning device 30 of the bridge includes a mounting seat 31 and two traction mechanisms 32. The mounting seat 31 is used to be fixed to the pier column 10. The two traction mechanisms 32 are respectively arranged on both sides of the mounting seat 31 in the width direction Y of the box girder, so that the two traction structures are respectively located on both sides of the pier column 10 in the width direction Y of the box girder. The traction mechanism 32 includes a fixed seat 321, a moving member 322 and a connecting rod 323. The fixed seat 321 is used to be fixed to the bottom of the box girder 20 and extend into the chamber 21. The moving member 322 is movably connected to the fixed seat 321 along the vertical direction Z, and both ends of the moving member 322 respectively penetrate through both sides of the fixed seat 321 in the vertical direction Z. Both ends of the connecting rod 323 are respectively hinged to the mounting seat 31 and the moving member 322. Among them, please refer to Figure 4 as shown, the moving member 322 has an abutting portion 3221, and the abutting portion 3221 is configured to abut against the fixed seat 321 when the moving member 322 moves downward relative to the fixed seat 321 along the vertical direction Z to prevent the box girder 20 from tilting.

[0046] On both sides of the mounting base 31 in the width direction Y of the box girder, traction mechanisms 32 are provided so that the two traction mechanisms 32 can be respectively connected to the parts on both sides of the box girder 20 of the pier 10, so as to be able to traction and stretch both sides of the box girder 20 in the width direction Y of the box girder. Among them, the traction mechanism 32 is provided with a fixed seat 321, a moving member 322 and a connecting rod 323. By connecting the fixed seat 321 to the bottom of the box girder 20, the moving member 322 is movably inserted into the fixed seat 321 in the vertical direction Z, and both ends of the connecting rod 323 are respectively hinged to the moving member 322 and the mounting base 31, so that the abutting portion 3221 of the moving member 322 can abut against the fixed seat 321 when the box girder 20 is inclined. Thus, the traction mechanism 32 with this structure realizes the traction and stretching of the box girder 20, effectively prevents the box girder 20 from further tilting, and further can effectively reduce the risk of the box girder 20 of the bridge 100 tipping over or overturning laterally, reducing the potential safety hazards existing in the later use process of the bridge 100, which is beneficial to ensuring the use safety of people. In addition, the anti-overturning device 30 of the bridge with this structure can also allow a slight vibration space margin for the box girder 20, so as to effectively relieve the rigid pulling phenomenon between the box girder 20 and the anti-overturning device 30 of the bridge, and further is beneficial to extending the service life of the anti-overturning device 30 of the bridge and the box girder 20.

[0047] Among them, the fixed seat 321 is fixed to the bottom of the box girder 20, and both ends of the fixed seat 321 in the vertical direction Z respectively penetrate the bottom wall of the chamber 21 and the bottom wall of the box girder 20. That is to say, part of the fixed seat 321 is located inside the chamber 21 of the box girder 20, and part of the fixed seat 321 is located outside the box girder 20.

[0048] Furthermore, as Figure 4 shown, the traction mechanism 32 further includes an elastic member 324. The elastic member 324 is connected to the abutting portion 3221 and the fixed seat 321, and the elastic member 324 is configured to buffer the impact force between the abutting portion 3221 and the fixed seat 321. By providing the elastic member 324 between the abutting portion 3221 and the fixed seat 321, the elastic member 324 can effectively buffer the rigid collision between the abutting portion 3221 and the fixed seat 321 when the box girder 20 is inclined, so as to play a good buffering role for the abutting portion 3221 and the fixed seat 321, and is beneficial to playing a good shock-absorbing function for the box girder 20.

[0049] Among them, an accommodation cavity 3211 is formed inside the fixed seat 321. A part of the moving member 322 is located inside the accommodation cavity 3211, and the abutting portion 3221 is located inside the accommodation cavity 3211. The abutting portion 3221 is configured to abut against the bottom wall of the accommodation cavity 3211 when the moving member 322 moves downward relative to the fixed seat 321 along the vertical direction Z. The elastic member 324 is located inside the accommodation cavity 3211, and both ends of the elastic member 324 in the vertical direction Z are respectively connected to the abutting portion 3221 and the top wall of the accommodation cavity 3211.

[0050] By arranging the accommodation cavity 3211 inside the fixed seat 321 and arranging a part of the moving member 322 inside the accommodation cavity 3211, that is to say, the moving member 322 is movably disposed through the accommodation cavity 3211 along the vertical direction Z, and both the abutting portion 3221 and the elastic member 324 are arranged inside the accommodation cavity 3211, so that when the moving member 322 moves downward relative to the fixed seat 321 along the vertical direction Z, the abutting portion 3221 can abut against the bottom wall of the accommodation cavity 3211 to exert a traction and stretching effect on the box girder 20. The traction mechanism 32 with this structure has relatively high structural stability and is beneficial to enhancing the protection effect on the abutting portion 3221 and the elastic member 324 to reduce the risk of damage or corrosion of the abutting portion 3221 and the elastic member 324 under the influence of the external environment.

[0051] Exemplarily, the elastic member 324 is a spring. The spring is located inside the accommodation cavity 3211 of the fixed seat 321 and sleeved on the outer peripheral side of the moving member 322. Both ends of the spring are respectively connected to the abutting portion 3221 of the moving member 322 and the top wall of the accommodation cavity 3211. Of course, in other embodiments, the elastic member 324 can also be a spring sheet, etc. For example, the elastic member 324 is a V-shaped spring sheet.

[0052] Further, please continue to refer to Figure 4 As shown, a limiting groove 3212 can also be formed on the side wall of the accommodation cavity 3211 in the width direction Y of the box girder. The limiting groove 3212 extends along the vertical direction Z. A limiting protrusion 3222 is arranged on the abutting portion 3221, and the limiting protrusion 3222 is movably clamped in the limiting groove 3212 along the vertical direction Z.

[0053] By arranging the limiting groove 3212 extending along the vertical direction Z on the side wall of the accommodation cavity 3211 and correspondingly arranging the limiting protrusion 3222 on the abutting portion 3221 of the moving member 322, so that the limiting protrusion 3222 can be movably clamped in the limiting groove 3212 along the vertical direction Z, on the one hand, it can play a good limiting role on the moving member 322 to reduce the phenomenon of circumferential rotation of the moving member 322 relative to the fixed seat 321, and on the other hand, it can play a good guiding role on the moving member 322 to ensure that the moving member 322 can move stably relative to the fixed seat 321 along the vertical direction Z.

[0054] Exemplarily, in Figure 4 , on the two opposite side walls of the accommodation cavity 3211 in the width direction Y of the box girder, limiting grooves 3212 are respectively formed. Correspondingly, on both sides of the abutting portion 3221 in the width direction Y of the box girder, limiting protrusions 3222 are respectively protruded, and each limiting protrusion 3222 is clamped in the corresponding limiting groove 3212. Of course, the number of the limiting protrusions 3222 and the number of the limiting grooves 3212 may also be one each.

[0055] Optionally, in combination with Figure 4 and Figure 5 as shown, the fixing seat 321 may further be provided with a limiting block 3213, and the limiting block 3213 is used for abutting against the bottom wall of the cavity 21. By providing the limiting block 3213 on the fixing seat 321 for abutting against the bottom wall of the cavity 21, the connection reliability and structural stability between the fixing seat 321 and the box girder 20 can be effectively improved, so as to reduce the risk that the fixing seat 321 detaches from the box girder 20 in the vertical direction Z.

[0056] Exemplarily, in Figure 5 , on both sides of the fixing seat 321 in the width direction Y of the box girder, limiting blocks 3213 are respectively provided, and the limiting blocks 3213 protrude from the fixing seat 321 in the width direction Y of the box girder, so that the limiting blocks 3213 can abut against the bottom wall of the cavity 21 of the box girder 20.

[0057] In this embodiment, in combination with Figure 2 , Figure 3 and Figure 5 as shown, the traction mechanism 32 further includes a connecting seat 325, a detecting member 326 and a driving assembly 327. The connecting seat 325 is connected to the top end of the moving member 322 in the vertical direction Z. The detecting member 326 is arranged between the connecting seat 325 and the fixing seat 321 in the vertical direction Z, and the detecting member 326 is configured to detect the pressure between the connecting seat 325 and the fixing seat 321 and generate a pressure signal. The driving assembly 327 is electrically connected to the detecting member 326, and the driving assembly 327 is configured to drive the connecting rod 323 to swing downward relative to the mounting seat 31 according to the pressure signal, so as to drive the moving member 322 to move downward in the vertical direction Z.

[0058] By providing a connecting seat 325 at the top of the moving member 322 and arranging a detecting member 326 between the connecting seat 325 and the fixed seat 321 along the vertical direction Z, during actual use, when the box girder 20 of the bridge 100 tilts to one side along the width direction Y of the box girder, the other side of the box girder 20 will drive the fixed seat 321 of the corresponding traction mechanism 32 to move upward along the vertical direction Z, so that the detecting member 326 will be squeezed by the fixed seat 321 and the connecting seat 325, enabling the detecting member 326 to detect the pressure value between the fixed seat 321 and the connecting seat 325 and generate a corresponding pressure signal. Thus, through the corresponding driving assembly 327, the corresponding connecting rod 323 can be driven to swing downward relative to the mounting seat 31, driving the moving member 322 to move downward relative to the fixed seat 321 along the vertical direction Z, so that the abutting portion 3221 of the moving member 322 can abut against the fixed seat 321 and drive the fixed seat 321 to move downward along the vertical direction Z. Furthermore, it can effectively prevent the box girder 20 of the bridge 100 from overturning or tipping over, and can play a certain corrective role for the box girder 20, which is beneficial to improving the anti-overturning ability of the bridge 100 equipped with this bridge anti-overturning device 30.

[0059] Exemplarily, the detecting member 326 is sleeved on the outer peripheral side of the moving member 322, and the detecting member 326 can be a piezoresistive pressure sensor, a ceramic pressure sensor, a diffused silicon pressure sensor, a sapphire pressure sensor, a piezoelectric pressure sensor, etc.

[0060] Optionally, a guiding post 22 protrudes from the bottom wall of the chamber 21, and a positioning hole 221 extending along the vertical direction Z is formed at one end of the guiding post 22 departing from the bottom wall of the chamber 21. A positioning post 3251 protrudes from the side of the connecting seat 325 facing the mounting seat 31 in the vertical direction Z, and the positioning post 3251 is used to be movably inserted into the positioning hole 221 along the vertical direction Z. The guiding post 22 is arranged on the bottom wall of the chamber 21, and the guiding post 22 is provided with the positioning hole 221 extending along the vertical direction Z. Thus, by correspondingly providing the positioning post 3251 on the connecting seat 325 that is inserted and cooperated with the positioning hole 221, it is convenient to play a certain positioning role for the connecting seat 325, and can effectively relieve the phenomenon that the connecting seat 325 deflects when the box girder 20 tilts, which is beneficial to improving the use stability of the bridge anti-overturning device 30 during later use.

[0061] Exemplarily, there are two guiding posts 22 arranged on the bottom wall of the chamber 21, and the two guiding posts 22 are respectively located on both sides of the fixed seat 321 along the width direction Y of the box girder. Correspondingly, there are also two positioning posts 3251 arranged on the connecting seat 325, and each positioning post 3251 is correspondingly inserted into the positioning hole 221 of one guiding post 22. Of course, in other embodiments, the number of the guiding posts 22 and the number of the positioning posts 3251 can also be one, three, four, five, etc.

[0062] Further, in combination with Figure 3 , Figure 5 and Figure 6 As shown, along the width direction Y of the box girder, a chute 3231 is provided on the side of the connecting rod 323 facing the pier 10, and the chute 3231 extends along the extending direction of the connecting rod 323. The driving assembly 327 includes a slider 3271 and a driving member 3272. The slider 3271 is slidably clamped in the chute 3231. The driving member 3272 is installed on the mounting seat 31, and the driving member 3272 is configured to drive the slider 3271 to move away from the mounting seat 31 along the width direction Y of the box girder, so as to drive the connecting rod 323 to swing downward relative to the mounting seat 31. By providing the chute 3231 on the side of the connecting rod 323 facing the pier 10 and the chute 3231 extending along the extending direction of the connecting rod 323, the slider 3271 of the driving assembly 327 can be slidably arranged in the chute 3231. Thus, when the driving member 3272 drives the slider 3271 to move away from the mounting seat 31 along the width direction Y of the box girder, the slider 3271 can apply a downward acting force on the connecting rod 323 in the vertical direction Z, and further drive the connecting rod 323 to swing downward relative to the mounting seat 31. This structure is simple, has high stability, and is easy to implement.

[0063] Exemplarily, the driving member 3272 is an electric push rod, the electric push rod is fixedly arranged on the mounting seat 31, and the electric push rod extends along the width direction Y of the box girder. The slider 3271 is connected to the output end of the electric push rod, so that the driving member 3272 can drive the slider 3271 to move away from the mounting seat 31 along the width direction Y of the box girder, so that the slider 3271 can drive the connecting rod 323 to swing downward while moving in the chute 3231 of the connecting rod 323. Of course, in other embodiments, the driving member 3272 can also be a cylinder or a hydraulic cylinder, etc.

[0064] It should be noted that the structure of the driving assembly 327 is not limited to this. In other embodiments, the driving assembly 327 can also be other structures. For example, the driving assembly 327 is a motor, the output shaft of the motor is connected to the connecting rod 323, and the motor is configured to drive the connecting rod 323 to rotate relative to the mounting seat 31 according to the pressure signal of the detecting member 326, so as to drive the connecting rod 323 to swing downward, thereby driving the moving member 322 to move downward in the vertical direction Z.

[0065] In this embodiment, in combination with Figure 3 and Figure 6As shown, the mounting base 31 includes a base body 311 and a plurality of locking members 312. The base body 311 is hinged to the connecting rod 323 and is used to be fixed to the pier column 10. The base body 311 extends along the circumferential direction of the pier column 10. A plurality of mounting holes 3111 are formed in the base body 311. The plurality of mounting holes 3111 are arranged at intervals along the circumferential direction of the pier column 10, and the mounting holes 3111 extend along the radial direction of the pier column 10. The locking members 312 are arranged corresponding to the mounting holes 3111. The locking members 312 are inserted into the corresponding mounting holes 3111, and the locking members 312 are used to be inserted into the pier column 10 to lock the base body 311 to the pier column 10.

[0066] By providing a plurality of mounting holes 3111 arranged at intervals along the circumferential direction of the pier column 10 on the base body 311 of the mounting base 31, and providing a locking member 312 corresponding to each mounting hole 3111, the locking member 312 can be inserted into the pier column 10 when the base body 311 is assembled to the pier column 10, so as to lock the base body 311 to the pier column 10. The mounting base 31 with this structure can effectively reduce the phenomenon that the mounting base 31 and the pier column 10 slide relative to each other in the vertical direction Z, so as to improve the structural stability and reliability of the mounting base 31 fixed on the pier column 10, and further help to ensure the traction and stretching effect of the traction mechanism 32 on the box girder 20, so as to improve the anti-overturning ability of the bridge 100.

[0067] Among them, the base body 311 surrounds the outer peripheral side of the pier column 10 along the circumferential direction of the pier column 10 to be fixed to the pier column 10. Exemplarily, the base body 311 is a hoop. The base body 311 includes two semi-circular brackets. The two semi-circular brackets are arranged oppositely and are bolted together so that the two semi-circular brackets cooperate to tightly hold the outer peripheral side of the pier column 10, thereby realizing the fixation of the base body 311 to the pier column 10.

[0068] Optionally, an external thread is provided on the outer peripheral surface of the locking member 312, and an internal thread is provided on the hole wall of the mounting hole 3111. The locking member 312 is screwed into the mounting hole 3111. Correspondingly, a plurality of locking holes 12 are formed on the outer peripheral surface of the pier column 10. The plurality of locking holes 12 are arranged at intervals along the circumferential direction of the pier column 10. The locking holes 12 are arranged in one-to-one correspondence with the locking members 312, and the locking holes 12 extend along the radial direction of the pier column 10. The locking member 312 is used to be inserted into the corresponding locking hole 12 to realize the locking of the mounting base 31 and the pier column 10 in the vertical direction Z. For example, when the locking member 312 is tightened, the locking member 312 can be inserted into the locking hole 12. On the contrary, when the locking member 312 is loosened, the locking member 312 can be withdrawn from the locking hole 12.

[0069] Exemplarily, in Figure 3 and Figure 6Among them, two rows of mounting holes 3111 are arranged on the seat body 311 at intervals along the vertical direction Z. Each row of mounting holes 3111 includes four mounting holes 3111 that are arranged at intervals and evenly along the circumferential direction of the pier 10. Correspondingly, the number of locking members 312 and locking holes 12 provided on the pier 10 is the same as that of the mounting holes 3111 and they are correspondingly arranged. Of course, the mounting holes 3111 provided on the seat body 311 can also be one row, three rows, four rows, etc. Similarly, the number of mounting holes 3111 in each row can be one, two, three, five, etc.

[0070] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0071] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A bridge anti-overturning device, the bridge comprising a pier column and a box girder, the box girder being erected on top of the pier column, and a chamber being formed inside the box girder, characterized in that, the bridge anti-overturning device comprises: a mounting seat for fixing to the pier column; and two traction mechanisms respectively arranged on both sides of the mounting seat in the width direction of the box girder, each traction mechanism comprising a fixed seat, a moving member and a connecting rod, the fixed seat being for fixing to the bottom of the box girder and extending into the chamber, the moving member being vertically movably connected to the fixed seat, and both ends of the moving member respectively penetrating through both sides of the fixed seat in the vertical direction, both ends of the connecting rod being respectively hinged to the mounting seat and the moving member, the mounting seat comprising a seat body, the seat body being hinged to the connecting rod and for fixing to the pier column, and the seat body extending along the circumferential direction of the pier column; wherein, the moving member has an abutting portion configured to abut against the fixed seat when the moving member moves downward relative to the fixed seat in the vertical direction to prevent the box girder from tilting; the traction mechanism further comprises a connecting seat, a detecting member and a driving assembly, the connecting seat being connected to the top end of the moving member in the vertical direction, the detecting member being arranged vertically between the connecting seat and the fixed seat, the detecting member being configured to detect the pressure between the connecting seat and the fixed seat and generate a pressure signal, the driving assembly being electrically connected to the detecting member, and the driving assembly being configured to drive the connecting rod to swing downward relative to the mounting seat according to the pressure signal to drive the moving member to move downward in the vertical direction.

2. The bridge anti-overturning device according to claim 1, characterized in that, the traction mechanism further comprises an elastic member; the elastic member is connected between the abutting portion and the fixed seat, and the elastic member is configured to buffer the impact force between the abutting portion and the fixed seat.

3. The bridge anti-overturning device according to claim 2, characterized in that, an accommodation cavity is formed inside the fixed seat, and a part of the moving member is located in the accommodation cavity; the abutting portion is located in the accommodation cavity and is configured to abut against the bottom wall of the accommodation cavity when the moving member moves downward relative to the fixed seat in the vertical direction; the elastic member is located in the accommodation cavity, and both ends of the elastic member in the vertical direction are respectively connected to the abutting portion and the top wall of the accommodation cavity.

4. The bridge anti-overturning device according to claim 3, characterized in that, a limiting groove is formed on the side wall of the accommodation cavity in the width direction of the box girder, and the limiting groove extends in the vertical direction; a limiting protrusion is provided on the abutting portion, and the limiting protrusion is vertically movably clamped in the limiting groove.

5. The bridge anti-overturning device according to claim 1, characterized in that, the fixed seat is provided with a limiting block for abutting against the bottom wall of the chamber.

6. The bridge anti-overturning device according to any one of claims 1 to 5, It is characterized in that Along the width direction of the box beam, a slide groove is provided on a side of the connecting rod facing the pier column, and the slide groove extends along the extension direction of the connecting rod; The driving assembly includes a slider and a driving member; The slider can be slidably clamped in the slide groove; The driving member is mounted on the mounting seat, and is configured to drive the slider to move along the width direction of the box beam in a direction away from the mounting seat, so as to drive the connecting rod to swing downward relative to the mounting seat.

7. The bridge anti-overturning device according to any one of claims 1 to 5, It is characterized in that A guide column is protruding from the bottom wall of the chamber, and a positioning hole extending along the vertical direction is formed at one end of the guide column away from the bottom wall of the chamber; A positioning column is protrudingly provided on one side of the connecting seat facing the mounting seat in the vertical direction, and the positioning column is used to be movably inserted into the positioning hole along the vertical direction.

8. The bridge anti-overturning device according to any one of claims 1 to 5, It is characterized in that The seat body is provided with a plurality of mounting holes, the plurality of mounting holes are arranged at intervals along the circumference of the pier, and the mounting holes extend along the radial direction of the pier; The mounting seat also includes a plurality of locking members, which are arranged corresponding to the mounting holes, are passed through the corresponding mounting holes, and are used to be inserted into the pier to lock the seat body on the pier.

9. A bridge, It is characterized in that include: pier column; A box beam, the box beam being erected on the top of the pier, and a chamber being formed inside the box beam; as well as According to the bridge anti-overturning device according to any one of claims 1 to 8, the mounting seat is fixed to the pier, and the fixing seat of the traction mechanism is fixed to the bottom of the box girder and extends into the cavity.

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