Arch bridge suspenders and arch bridges with fire extinguishing structures

Abstract

This utility model provides an arch bridge suspender with a fire-extinguishing structure and an arch bridge, relating to the technical field of bridge-related devices. It includes a suspender mechanism, a fireproof cover mechanism, and a fire extinguisher. One end of the suspender mechanism is connected to an external arch rib of the arch bridge, and the other end is connected to an external bridge body. The fireproof cover mechanism is connected to the suspender mechanism and includes a fireproof cover body, which covers the suspender mechanism along its extension direction when it catches fire. The fire extinguisher is connected to the suspender mechanism and is used to extinguish the fire in the area covered by the fireproof cover body. This utility model alleviates the technical problem in the prior art where the suspenders of suspension bridges, after being ignited, cannot achieve rapid and effective fire extinguishing, thus causing the suspenders to break due to heat from the fire.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge-related devices, and in particular to an arch bridge suspender with a fire extinguishing structure and an arch bridge. Background Technology

[0002] A suspension arch bridge is a bridge whose superstructure primarily consists of cables (or steel chains) suspended from towers and anchored to both banks (or both ends of the bridge). The geometry of the cables is determined by force equilibrium conditions and generally approximates a parabola. Numerous suspenders hang from the cables, supporting the bridge deck. Stiffening beams are often installed between the bridge deck and the suspenders, forming a combined system with the cables to reduce deflection caused by loads.

[0003] The commonly used material for suspension cables is steel strand wrapped with a PE protective sheath, a durable protective material. However, PE is a flammable plastic that will burn at a certain temperature, posing a potential threat to the steel cables it protects. Furthermore, current technology carries the risk of vehicles driving on the bridge causing a fire, which could then ignite the suspension cables, as seen in the Xinguang Bridge fire on the Pearl River South Channel on July 25, 2025. Fires on suspension bridges are often difficult to extinguish immediately, leading to high-temperature failure of the suspension cables under the fire's influence, potentially causing them to break. In severe cases, this can lead to the collapse of the main beam, resulting in extremely serious safety accidents. Utility Model Content

[0004] The purpose of this utility model is to provide an arch bridge suspender with a fire extinguishing structure to alleviate the technical problem in the prior art where the suspender of the suspension bridge cannot achieve rapid and effective fire extinguishing after being ignited, thus causing the suspender to break due to heat caused by fire.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In the first aspect, this utility model provides an arch bridge suspender with a fire extinguishing structure, including a suspender mechanism, a fireproof cover mechanism and a fire extinguisher. One end of the suspender mechanism is used to connect with the external arch rib of the arch bridge, and the other end is used to connect with the external bridge body. The fireproof cover mechanism is connected to the boom mechanism, and the fireproof cover mechanism includes a fireproof cover body, which is used to cover the boom mechanism along the extension direction of the boom mechanism when the boom mechanism catches fire; The fire extinguisher is connected to the boom mechanism, and the fire extinguisher is used to extinguish the fire on the boom mechanism within the area covered by the fireproof cover body.

[0006] Furthermore, the fireproof cover mechanism includes an outer shell, which is connected to the hanging rod mechanism; One end of the fireproof cover body is connected to the outer shell.

[0007] Furthermore, the outer shell has an annular receiving groove, and the inner wall of the receiving groove is connected to one end of the fireproof cover body. The fireproof cover body is used to be folded and placed inside the receiving groove when no fire occurs.

[0008] Furthermore, the fireproof cover mechanism also includes a fireproof cover assembly, which includes the fireproof cover body and a pulley guide sleeve; The fireproof cover body is provided with the pulley guide sleeve at one end away from the receiving groove, and the pulley guide sleeve is slidably sleeved on the outside of the lifting rod mechanism.

[0009] Furthermore, the fireproof cover mechanism also includes an adsorption element, which is connected to the outer shell and adsorbedly connected to the pulley guide sleeve.

[0010] Furthermore, the output end of the fire extinguisher is provided with a fire extinguishing nozzle, and the end of the fire extinguishing nozzle away from the fire extinguisher is inserted between the fireproof cover mechanism and the boom mechanism.

[0011] Furthermore, the arch bridge suspender with fire extinguishing structure also includes a solar panel, which is electrically connected to the fireproof cover mechanism and the fire extinguisher, and the solar panel is used to connect to the arch rib of the arch bridge.

[0012] Furthermore, the suspender mechanism includes a suspender assembly and a suspender lug plate. One end of the suspender assembly is used to connect to the arch rib of the arch bridge through the suspender lug plate, and the other end of the suspender assembly is used to connect to the main body of the bridge. The boom assembly is connected to the fireproof cover mechanism and the fire extinguisher, respectively.

[0013] Furthermore, the boom assembly includes a boom body and boom anchors, with the boom anchors provided at both ends of the boom body; The upper end of the boom anchor is connected to the boom lug, and the upper end of the boom anchor is connected to the fireproof cover mechanism and the fire extinguisher respectively. The lower end of the suspender anchor is used for connection to the bridge body.

[0014] Secondly, this utility model embodiment provides an arch bridge, including the arch bridge hanger with a fire extinguishing structure as described in any of the foregoing embodiments.

[0015] This utility model can achieve the following beneficial effects: In a first aspect, this utility model provides an arch bridge suspender with a fire-extinguishing structure, including a suspender mechanism, a fireproof cover mechanism, and a fire extinguisher. One end of the suspender mechanism is used to connect to an external arch rib of the arch bridge, and the other end is used to connect to an external bridge body. The fireproof cover mechanism is connected to the suspender mechanism, and the fireproof cover mechanism includes a fireproof cover body, which is used to cover the suspender mechanism along its extension direction when the suspender mechanism catches fire. The fire extinguisher is connected to the suspender mechanism and is used to extinguish the fire on the suspender mechanism within the area covered by the fireproof cover body.

[0016] In this utility model, a fireproof cover mechanism is provided on the boom mechanism, and the fireproof cover mechanism includes a fireproof cover body. When a fire occurs in the boom mechanism, the fireproof cover body is released to cover the boom mechanism, thereby isolating the fire from the outside world. Then, fire extinguishing materials such as foam are sprayed onto the boom mechanism and the fireproof cover body by a fire extinguisher to extinguish the fire in the boom mechanism.

[0017] Compared with the prior art, the arch bridge suspender with fire extinguishing structure provided by this utility model can isolate the air and the external flames from the suspender mechanism by installing a fireproof cover mechanism and a fire extinguisher on the suspender mechanism. Then, the fire extinguisher is used to extinguish the flames. The fireproof cover body can also ensure that the fire extinguishing spray can play its maximum role within the effective range to achieve rapid fire extinguishing and avoid the suspender mechanism from being heated for a long time due to unextinguished flames, which may lead to breakage.

[0018] In summary, this utility model at least alleviates the technical problem in the prior art where the suspension rods of a suspension bridge cannot be extinguished quickly and effectively after being ignited, thus causing the suspension rods to break due to heat from the fire.

[0019] In addition, a second aspect of the present invention provides an arch bridge, including the arch bridge hanger with a fire extinguishing structure provided in the first aspect. Since the arch bridge provided in the present invention includes the arch bridge hanger with a fire extinguishing structure provided in the first aspect, the arch bridge provided in the present invention can achieve all the beneficial effects that the arch bridge hanger with a fire extinguishing structure provided in the first aspect can achieve. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1A schematic diagram of the overall structure of the arch bridge hanger with a fire extinguishing structure provided in the embodiment of this utility model in the installation state; Figure 2 A schematic diagram of the main structure of the fireproof cloth of the arch bridge hanger with fire extinguishing structure after being folded up, as provided in an embodiment of this utility model; Figure 3 for Figure 2 Enlarged schematic diagram of part A; Figure 4 This is a front view schematic diagram of the fireproof cloth of the arch bridge hanger with fire extinguishing structure provided in an embodiment of the present utility model after it has been extended.

[0022] Icons: 1-Hanging rod mechanism; 11-Hanging rod assembly; 111-Hanging rod body; 112-Hanging rod anchor; 12-Hanging rod ear plate; 2-Fireproof cover mechanism; 21-Outer shell; 211-Accommodation groove; 22-Fireproof cover assembly; 221-Fireproof cover body; 222-Pulley guide sleeve; 23-Adsorption component; 3-Fire extinguisher; 31-Fire extinguishing nozzle; 4-Solar panel; 5-Arch bridge rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] Example 1 This embodiment provides an arch bridge hanger with a fire-extinguishing structure, as shown in the reference. Figure 1 and Figure 3 The arch bridge suspender with fire extinguishing structure includes a suspender mechanism 1, a fireproof cover mechanism 2, and a fire extinguisher 3. One end of the suspender mechanism 1 is used to connect to the external arch rib 5 of the arch bridge, and the other end is used to connect to the external bridge body. The fireproof cover mechanism 2 is connected to the suspender mechanism 1, and the fireproof cover mechanism 2 includes a fireproof cover body 221. The fireproof cover body 221 is used to cover the suspender mechanism 1 along the extension direction of the suspender mechanism 1 when the suspender mechanism 1 catches fire. The fire extinguisher 3 is connected to the suspender mechanism 1, and the fire extinguisher 3 is used to extinguish the fire on the suspender mechanism 1 in the area covered by the fireproof cover body 221.

[0031] This invention at least alleviates the technical problem in the prior art where the suspension rods of a suspension bridge, once ignited, cannot be extinguished quickly and effectively, thus posing a risk of breakage due to heat from the fire. Furthermore, sprinkler systems are ineffective at achieving adequate fire coverage and extinguishing effect on long, narrow suspension rods.

[0032] In this embodiment of the utility model, the boom mechanism 1 is provided with a fireproof cover mechanism 2, which includes a fireproof cover body 221. When a fire occurs in the boom mechanism 1, the fireproof cover body 221 is released to cover the boom mechanism 1, thereby isolating the fire from the outside world. Then, the fire extinguisher 3 sprays fire extinguishing materials such as foam onto the boom mechanism 1 and the fireproof cover mechanism 2 to extinguish the fire in the boom mechanism 1.

[0033] Compared with the prior art, the arch bridge suspender with fire extinguishing structure provided in this embodiment of the utility model can isolate the air and isolate the outer flame from the suspender mechanism 1 by installing a fireproof cover mechanism 2 and a fire extinguisher 3 on the suspender mechanism 1. Then, the fire extinguisher 3 is used to extinguish the flame. The setting of the fireproof cover body 221 can also ensure that the fire extinguishing spray can play its maximum role within the effective range to achieve rapid fire extinguishing and avoid the suspender mechanism 1 from being heated for a long time due to the flame not being extinguished, which may lead to the risk of breakage.

[0034] In an optional implementation of this embodiment, refer to Figure 3 The fireproof cover mechanism 2 includes an outer shell 21, which is connected to the hanging rod mechanism 1; one end of the fireproof cover body 221 is connected to the outer shell 21.

[0035] Specifically, the outer shell 21 is tightly connected to the hanging rod mechanism 1, and one end of the fireproof cover body 221 is connected to the outer shell 21, so that the fireproof cover body 221 can be retracted into the outer shell 21 when not in use, thus avoiding damage caused by long-term exposure. The fireproof cover body 221 can be made of aluminum foil fireproof cloth, which has properties such as easy folding, fire resistance, heat insulation, and resistance to light radiation.

[0036] Furthermore, referring to Figure 2 and Figure 3 The outer shell 21 has an annular receiving groove 211, and the inner wall of the receiving groove 211 is connected to one end of the fireproof cover body 221; the fireproof cover body 221 is used to be folded into the receiving groove 211 when no fire occurs.

[0037] Specifically: the outer shell 21 is provided with a receiving groove 211 along its circumference, and the fireproof cover body 221 is a tubular soft structure, one end of which is connected to the inner wall of the receiving groove 211. When not in use, the fireproof cover body 221 can be stored in the receiving groove 211; so that when in use, the fireproof cover body 221 can be extended out of the receiving groove 211.

[0038] Furthermore, referring to Figure 3 and Figure 4 The fireproof cover mechanism 2 also includes a fireproof cover assembly 22, which includes a fireproof cover body 221 and a pulley guide sleeve 222. The fireproof cover body 221 is provided with a pulley guide sleeve 222 at one end away from the receiving groove 211, and the pulley guide sleeve 222 is slidably sleeved on the outside of the rod mechanism 1.

[0039] Specifically: the pulley guide sleeve 222 is connected to the bottom end of the fireproof cover body 221, and the pulley guide sleeve 222 is rolled on the hanging rod mechanism 1 along the extension direction of the hanging rod mechanism 1; in use, by releasing the pulley guide sleeve 222, the pulley guide sleeve 222 moves along the hanging rod mechanism 1, thereby driving the fireproof cover body 221 to extend out of the receiving groove 211, so as to cover the outer wall of the hanging rod mechanism 1.

[0040] Furthermore, referring to Figure 3 The fireproof cover mechanism 2 also includes an adsorption component 23, which is connected to the outer shell 21 and adsorbed to the pulley guide sleeve 222.

[0041] Specifically: the adsorption component 23 is connected to the bottom of the outer shell 21, and the adsorption component 23 can be an electrically controlled permanent magnet chuck; in use, a temperature sensor can also be installed on the hanging rod mechanism 1, and the temperature sensor is electrically connected to the electrically controlled permanent magnet chuck. When the temperature sensor detects that the temperature of the hanging rod mechanism 1 has reached the warning value, it releases an electrical signal. At this time, the magnetic force of the electrically controlled permanent magnet chuck is small, and the pulley guide sleeve 222 that is magnetically attracted by the electrically controlled permanent magnet chuck will slide down along the hanging rod mechanism 1.

[0042] In an optional implementation of this embodiment, refer to Figure 3 The fire extinguisher 3 is equipped with a fire extinguishing nozzle 31 at its output end. The end of the fire extinguishing nozzle 31 that is away from the fire extinguisher 3 is inserted between the fireproof cover mechanism 2 and the rod mechanism 1.

[0043] Specifically: The output end of the fire extinguisher 3 is provided with a fire extinguishing nozzle 31 extending downward along the extension direction of the boom mechanism 1. The fire extinguisher 3 releases fire extinguishing foam into the unfolded fireproof cover body 221 through the fire extinguishing nozzle 31. The fire extinguishing foam will flow downward along the boom mechanism 1 and the fireproof cover body 221 to extinguish the fire on the boom mechanism 1.

[0044] In an optional implementation of this embodiment, refer to Figure 1The arch bridge suspender with fire extinguishing structure also includes a solar panel 4, which is electrically connected to the fireproof cover mechanism 2 and the fire extinguisher 3, and the solar panel 4 is used to connect to the arch rib 5 of the arch bridge.

[0045] Specifically: Solar panels 4 are laid on the upper surface of the arch ribs 5 of the arch bridge, and solar panels 4 are electrically connected to the fireproof cover mechanism 2 and the fire extinguisher 3 via wires, so as to provide power to components such as the fire extinguisher 3, the electrically controlled permanent magnet chuck, and the temperature sensor. The fire extinguisher 3 can be an integrated fire extinguishing device, which extinguishes fires through foam-water spraying.

[0046] In an optional implementation of this embodiment, refer to Figure 1 The boom mechanism 1 includes a boom assembly 11 and a boom lug 12. One end of the boom assembly 11 is used to connect to the arch rib 5 of the arch bridge through the boom lug 12, and the other end of the boom assembly 11 is used to connect to the main body of the bridge. The boom assembly 11 is connected to the fireproof cover mechanism 2 and the fire extinguisher 3 respectively.

[0047] Specifically: The top of the boom assembly 11 is provided with a boom lug 12, and the top of the boom assembly 11 is connected to the arch rib 5 of the arch bridge through the boom lug 12. The lower end of the boom assembly 11 can be a stainless steel sleeve, and the upper end of the boom assembly 11 is connected to the fireproof cover mechanism 2 and the fire extinguisher 3 to facilitate the release of the fireproof cover body 221 and the facilitating the descent of the foam.

[0048] Furthermore, referring to Figure 2 The boom assembly 11 includes a boom body 111 and boom anchors 112. Bore anchors 112 are provided at both ends of the boom body 111. The boom anchor 112 at the upper end is connected to the boom lug 12 and is also connected to the fireproof cover mechanism 2 and the fire extinguisher 3. The boom anchor 112 at the lower end is used to connect to the bridge body.

[0049] Specifically: the suspender anchor 112 located at the top of the suspender body 111 is equipped with a fireproof cover mechanism 2 and a fire extinguisher 3; while the suspender anchor 112 at the bottom of the suspender body 111 is used to connect with the main body of the bridge; the safety factor n of the suspender body 111 is between 2.3 and 3, and its service stress is not less than 20% of the nominal breaking force of the suspender body 111, so as to ensure that the suspender body 111 will not bend.

[0050] Example 2 This embodiment provides an arch bridge, which includes the arch bridge hanger with a fire extinguishing structure provided in any optional implementation of Embodiment 1.

[0051] Since the arch bridge provided in this embodiment includes the arch bridge hanger with fire extinguishing structure described in Embodiment 1, the arch bridge provided in this embodiment can achieve all the beneficial effects that the arch bridge hanger with fire extinguishing structure in Embodiment 1 can achieve. Its specific structure and the effects that can be achieved can be obtained by referring to the optional or preferred implementation methods in Embodiment 1.

[0052] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. An arch bridge suspender having a fire extinguishing structure, characterized by, It includes a boom mechanism (1), a fireproof cover mechanism (2) and a fire extinguisher (3). One end of the boom mechanism (1) is used to connect with the external arch rib (5) of the arch bridge, and the other end is used to connect with the external bridge body. The fireproof cover mechanism (2) is connected to the rod mechanism (1), and the fireproof cover mechanism (2) includes a fireproof cover body (221), which is used to cover the rod mechanism (1) along the extension direction of the rod mechanism (1) when the rod mechanism (1) is on fire; The fire extinguisher (3) is connected to the boom mechanism (1), and the fire extinguisher (3) is used to extinguish the fire of the boom mechanism (1) in the area covered by the fireproof cover body (221).

2. The arch bridge suspender having a fire extinguishing structure according to claim 1, characterized by, The fireproof cover mechanism (2) includes an outer shell (21), which is connected to the hanging rod mechanism (1); One end of the fireproof cover body (221) is connected to the outer shell (21).

3. The arch bridge suspender having a fire extinguishing structure according to claim 2, characterized by, The outer shell (21) has an annular receiving groove (211), and the inner wall of the receiving groove (211) is connected to one end of the fireproof cover body (221). The fireproof cover body (221) is used to be folded and placed in the receiving groove (211) when no fire occurs.

4. The arch bridge suspender having a fire extinguishing structure according to claim 3, characterized by, The fireproof cover mechanism (2) further includes a fireproof cover assembly (22), which includes the fireproof cover body (221) and a pulley guide sleeve (222). The fireproof cover body (221) is provided with the pulley guide sleeve (222) at one end away from the receiving groove (211), and the pulley guide sleeve (222) is slidably sleeved on the outside of the hanging rod mechanism (1).

5. The arch bridge suspender having a fire extinguishing structure according to claim 4, characterized by, The fireproof cover mechanism (2) also includes an adsorption component (23), which is connected to the outer shell (21) and adsorbed to the pulley guide sleeve (222).

6. The arch bridge suspender having a fire extinguishing structure according to claim 1, characterized by, The fire extinguisher (3) is provided with a fire extinguishing nozzle (31) at its output end. The end of the fire extinguishing nozzle (31) away from the fire extinguisher (3) is inserted between the fireproof cover mechanism (2) and the rod mechanism (1).

7. The arch bridge suspender with a fire extinguishing structure according to claim 1, characterized by, The arch bridge suspender with fire extinguishing structure also includes a solar panel (4), which is electrically connected to the fireproof cover mechanism (2) and the fire extinguisher (3), and the solar panel (4) is used to connect to the arch rib (5) of the arch bridge.

8. The arch bridge suspender with a fire extinguishing structure according to claim 1, characterized by, The suspender mechanism (1) includes a suspender assembly (11) and a suspender lug (12). One end of the suspender assembly (11) is used to connect with the arch rib (5) of the arch bridge through the suspender lug (12), and the other end of the suspender assembly (11) is used to connect with the main body of the bridge. The boom assembly (11) is connected to the fireproof cover mechanism (2) and the fire extinguisher (3) respectively.

9. The arch bridge suspender having a fire extinguishing structure according to claim 8, characterized by, The boom assembly (11) includes a boom body (111) and a boom anchor (112), with the boom anchor (112) provided at both ends of the boom body (111). The upper end of the boom anchor (112) is connected to the boom lug (12), and the upper end of the boom anchor (112) is connected to the fireproof cover mechanism (2) and the fire extinguisher (3) respectively. The lower end of the suspender anchor (112) is used to connect to the main body of the bridge.

10. An arch bridge, characterized by The arch bridge joist with a fire-extinguishing structure as described in any one of claims 1 to 9.

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