Protective structures and bridge installations

Abstract

The present invention discloses a protective structure and a bridge device. The protective structure can be installed on a manhole of a bridge. The protective structure includes a frame and a movable member. The frame is provided with a through hole that can cover the manhole. The movable member can move relative to the frame to close or open the through hole. When the protective structure is installed on the bridge, the through hole covers the manhole, thereby preventing rain, snow, or smaller objects from entering the manhole when the through hole is closed by the movable member. The bridge device includes a bridge and a protective structure. The bridge is provided with a manhole. The protective structure can be connected to the bridge or removed from the bridge.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge protection, and in particular to a protection structure and a bridge device. Background Art

[0002] Among related technologies, steel structure bridges are increasingly being used in the municipal sector. Due to their short construction period, minimal impact on traffic and residents, high safety, light weight, and easy processing, they have been widely promoted in recent years. Based on the construction experience of steel structure box bridges, bridges are generally composed of several segments that are hoisted, assembled, and welded on-site. Before the segments leave the factory, a certain number of temporary manholes need to be reserved on the bridge deck. To facilitate workers' access to the interior of the segments and prevent other debris from entering the manholes, operators in related technologies use nuts and steel bars to form a grid structure on the manholes. However, this structure cannot prevent rain, snow, or smaller objects from entering the manholes, and its protective function is imperfect. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a protective structure and a bridge device that can prevent rain, snow or smaller objects from entering a manhole.

[0004] An embodiment of the present invention provides a protective structure capable of being installed on a manhole of a bridge, comprising:

[0005] A frame body, wherein the frame body is provided with a through hole, and the through hole is capable of covering the manhole;

[0006] A moving part is capable of moving relative to the frame to close or open the through hole.

[0007] The protective structure according to the embodiment of the present invention has at least the following beneficial effects: when the protective structure is installed on the bridge, the through hole covers the manhole, so that when the through hole is closed by the movable part, rain, snow or smaller objects can be prevented from entering the manhole. At the same time, the movable part is opened (moved away from the through hole), so that the manhole is connected to the outside world, allowing the operator in the manhole to ventilate.

[0008] According to some embodiments of the present invention, the moving member is capable of rotating relative to the frame.

[0009] According to some embodiments of the present invention, the protective structure includes a driving member and a rotating shaft, the driving member is provided with a rack, one end of the rotating shaft is engaged with the rack, and the other end of the rotating shaft is connected to the moving member.

[0010] According to some embodiments of the present invention, a pushing structure is further included, wherein the pushing structure is connected to the driving member, wherein the pushing structure is located on the inner surface of the frame.

[0011] According to some embodiments of the present invention, the protective structure includes a plurality of the moving members, the driving member is provided with a plurality of racks, and each of the racks is connected to the moving member via one of the rotating shafts.

[0012] According to some embodiments of the present invention, the electromagnet is located on a side of the frame that is in contact with the bridge, and the switch structure is electrically connected to the electromagnet.

[0013] According to some embodiments of the present invention, the switch structure includes an inner switch and an outer switch, the outer switch is located on the outer surface of the frame, and the inner switch is located on the inner surface of the frame, and both the inner switch and the outer switch can independently turn on or off the electromagnet.

[0014] According to some embodiments of the present invention, the protective structure includes a plurality of movable members, one side of the movable member is provided with a first notch, and the other opposite side is provided with a second notch, and adjacent movable members can be engaged with the second notch through the first notch.

[0015] According to some embodiments of the present invention, a detection device is further included. The detection device is located on the inner surface of the frame and is used to detect gas concentration and provide information.

[0016] An embodiment of the present invention further discloses a bridge device, comprising:

[0017] A bridge, wherein a manhole is provided on the bridge;

[0018] The protective structure as described in any of the above embodiments is detachably connected to the bridge, and the through hole covers the manhole.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0021] Figure 1 A three-dimensional schematic diagram of a protective structure in an embodiment of the present invention;

[0022] Figure 2 It is the usage status diagram of the protective structure;

[0023] Figure 3 for Figure 1 Front view of

[0024] Figure 4 for Figure 1 Left view of;

[0025] Figure 5 This is the left view of the protective structure in use;

[0026] Figure 6 for Figure 4 Enlarged view of point A in the middle.

[0027] Figure numerals: protective structure 101, frame 102, through hole 103, moving part 104, manhole 201, bridge segment 202, driving part 203, rotating shaft 204, rack 205, first pushing part 206, internal switch 207, battery 208, track 209, first moving part 601, second moving part 602, first notch 603, second notch 604. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0033] Based on the construction experience of steel box bridges, a certain number of temporary manholes need to be reserved on the bridge deck before the bridge segments leave the factory, so that operators can enter the interior of the segments through the manholes to perform operations such as repainting and welding. In related technologies, operators will fix steel plates around the manholes with screws to prevent large materials from falling into the manholes and to prevent operators from stepping on air and getting injured. However, this method cannot prevent smaller objects from falling into the manholes, nor can it prevent rain and snow from entering the manholes. As a result, the work of operators entering the bridge segments through the manholes may be affected by the environment and weather.

[0034] In view of the above problems, an embodiment of the present invention discloses a protective structure 101, such as Figures 1 to 2 As shown, the protective structure 101 includes a frame 102 and a movable member 104. The frame 102 is provided with a through hole 103. The movable member 104 can move relative to the through hole 103 to close the through hole 103 or move away from the through hole 103. When the operator needs to enter the interior of the bridge segment 202, the through hole 103 is first aligned with the manhole 201 on the bridge segment 202 so that the through hole 103 covers the manhole 201. At this time, when the movable member 104 moves to close the through hole 103, the manhole 201 can be closed by the protective structure 101 and the movable member 104, thereby achieving the purpose of protecting the operator located in the bridge segment 202, so that the external weather (wind, rain, snow, etc.) and environment (falling objects, people stepping on air, etc.) will not affect the operation of the operator located in the bridge segment 202, thereby ensuring the safety and stability of the operator's operation. When the operators located in the bridge segment 202 need to change air and ventilate, the movable member 104 can be moved so that the movable member 104 is removed from the through hole 103, thereby achieving the effect of changing air for the operators located in the segment.

[0035] It is understandable that the protective structure 101 may further include a fan to assist in ventilation of the interior space of the bridge segment 202 when the through hole 103 is opened.

[0036] It can be understood that the above structure can also prevent other people from falling into the manhole.

[0037] Specifically, such as Figures 1 to 5As shown, the moving member 104 can rotate relative to the frame 102, so that the through hole 103 is closed or opened by the moving member 104. Specifically, the protective structure 101 includes a rotating shaft 204, which is connected to the frame 102. The moving member 104 is connected to the frame 102 via the rotating shaft 204. The rotating shaft 204 includes an initial position and an end position. When the rotating shaft 204 rotates relative to the frame 102 to the initial position, as shown in FIG. Figure 3 and Figure 4 As shown, the moving member 104 closes the through hole 103 to ensure the safety and stability of the operator in the bridge segment 202; when the shaft 204 rotates to the end position relative to the frame 102, as shown Figure 5 As shown, the moving member 104 no longer closes the through hole 103 , and the through hole 103 is now connected to the outside, thereby providing ventilation for the operators located in the bridge segment 202 .

[0038] Specifically, such as Figure 5 As shown, the middle position of the moving part 104 (not only the midpoint position) is connected to the rotating shaft 204. At this time, when the rotating shaft 204 rotates to the end position, part of the moving part 104 is located in the through hole 103, and part of the moving part 104 is located on the other side of the protective structure 101 relative to the bridge segment 202. Therefore, the length of the moving part 104 will not occupy too much space in the through hole 103 and the manhole 201, thereby ensuring that the operator has sufficient moving space.

[0039] Specifically, such as Figures 1 to 5 As shown, the protective structure 101 includes a driving member 203. A track 209 is provided on the frame 102. The driving member 203 is capable of moving along the track 209. A rack 205 is provided on the driving member 203. The other end of the rotating shaft 204 relative to the moving member 104 is engaged with the rack 205. When the driving member 203 moves along the track 209, the rack 205 on the driving member 203 also moves along the track 209. The rack 205 drives the rotating shaft 204, which is rotatably connected to the frame 102, to rotate. As a result, the rotating shaft 204 rotates between the initial position and the end position, driving the moving member 104 to close the through hole 103 or connect the through hole 103 to the outside.

[0040] The method of using the above structure is that when the moving member 104 closes the through hole 103, the operator can move the driving member 203 so that the driving member 203 is directed to the direction of the moving member 104. Figure 2 As shown in the figure, the rack 205 on the driving member 203 moves along the direction of the track 209, as shown in the figure. Figure 2 As shown in the front movement, thereby driving the shaft 204 to do as Figure 2The counterclockwise rotation shown in FIG. drives the moving member 104 to rotate counterclockwise, thereby causing the moving member 104 to no longer close the through hole 103, so that the through hole 103 is connected to the outside. When the operator needs to close the through hole 103, the operator can move the driving member 203 so that the driving member 203 faces the direction shown in FIG. Figure 2 The rear side movement shown drives the rotating shaft 204 to rotate clockwise, and then drives the moving member 104 to rotate clockwise to close the through hole 103, completing the operation.

[0041] Specifically, such as Figure 2 As shown, the protective structure 101 further includes a pushing structure, which is connected to the driving member 203 , so that when the operator moves the pushing structure, the pushing structure can drive the driving member 203 to move, thereby completing the movement of the moving member 104 .

[0042] Specifically, the pushing structure includes a first pushing member 206 and a second pushing member. The first pushing member 206 is connected to the outer surface of the frame 102, so that a person located outside the protective structure 101 and the bridge segment 202 can drive the moving member 104 to move through the first pushing member 206. The second pushing member is connected to the inner surface of the frame 102 (when the moving member 104 closes the through hole 103, the surface of the frame 102 located in the space formed by the frame 102 and the bridge segment 202 belongs to the inner surface of the frame 102), so that the operator located in the bridge segment 202 can operate the driving member 203 from the inside, close the through hole 103, or make the through hole 103 connected to the outside world.

[0043] Specifically, such as Figures 2 to 5 As shown, the protective structure 101 includes a plurality of moving parts 104, and a plurality of racks 205 are provided on the driving part 203. Each rack 205 corresponds to a rotating shaft 204, and a rotating shaft 204 drives a moving part 104 to move. When all the rotating shafts 204 are driven to rotate by the driving part 203, each rotating shaft 204 corresponds to one more moving part 104, so that all the moving parts 104 can jointly close the through hole 103 to prevent falling objects or rain and snow from entering the manhole 201, or all the moving parts 104 no longer close the through hole 103, so that the through hole 103 is connected to the outside world to ventilate the operators inside the bridge segment 202.

[0044] Specifically, the moving parts 104 on the protective structure 101 are arranged adjacent to each other in sequence, such as Figure 6As shown, two adjacent moving members 104 are set, one of which is a first moving member 601 and the other is a second moving member 602. A first notch 603 is provided on the side of the first moving member 601 adjacent to the second moving member 602, and a second notch 604 is provided on the side of the second moving member 602 adjacent to the first moving member 601. When the first moving member 601 and the second moving member 602 both close the through hole 103, the first notch 603 and the second notch 604 can be engaged with each other, thereby ensuring that the first moving member 601 and the second moving member 602 can seal the through hole 103 more closed.

[0045] It is understandable that each moving member 104 is provided with a first notch 603 and a second notch 604 , which are respectively located at two ends of the moving member 104 , so that all the moving members 104 can be relatively closedly connected to each other.

[0046] Specifically, the protective structure 101 also includes an electromagnet, a battery 208 and a switch structure. The battery 208 can power the electromagnet, and the electromagnet can be connected to the battery 208 through the switch structure, so that the switch structure can control whether the battery 208 powers the electromagnet. The electromagnet is located on one side of the frame 102 for fitting with the bridge segment 202. When the protective structure 101 is needed, the protective structure 101 is first placed above the bridge segment 202, and the through hole 103 of the protective structure 101 is aligned with the manhole 201 and covers the manhole 201. Then the switch structure is turned on so that the battery 208 energizes the electromagnet. At this time, the electromagnet can be adsorbed on the bridge segment 202 (steel structure), thereby completing the connection between the protective structure 101 and the bridge segment 202. When the protective structure 101 is not needed, just turn off the switch structure to separate the protective structure 101 from the bridge segment 202, so that the protective structure 101 can be used multiple times. Compared with the protective device that requires non-stop screws to be installed and disassembled, the protective structure 101 in the embodiment of the present invention can be used for a longer time.

[0047] Specifically, the switch structure includes an internal switch 207 and an external switch. Both the internal switch 207 and the external switch can independently control whether the battery 208 supplies power to the electromagnet. The external switch is located on the outer surface of the frame 102, so that the operator located on the bridge segment 202 and the outer surface of the frame 102 can turn on or off the electromagnet through the external switch, thereby completing the connection and separation of the protective structure 101 and the bridge; the internal switch 207 is located on the inner surface of the frame 102 (when the moving part 104 closes the through hole 103, the surface of the frame 102 located in the space formed by the frame 102 and the bridge segment 202 belongs to the inner surface of the frame 102), which allows the operator located in the manhole 201 to also control the working state of the electromagnet through the internal switch 207, thereby controlling the connection and separation of the protective structure 101 and the bridge segment 202.

[0048] The method of using the above structure is that when the operator needs to enter the interior of the bridge segment 202 to perform paint touch-up or welding work, the protective structure 101 is first placed near the manhole 201 (at this time the protective structure 101 does not cover the manhole 201), and then the operator enters the interior of the bridge segment 202 through the manhole 201, and then the operator extends the upper body from the manhole 201 to the outside of the bridge segment 202, and then picks up the protective structure 101 with his arms. Along with the operating personnel progressively enters manhole 201, the operating personnel can gradually cover the protective structure 101 on the manhole 201, after the operating personnel's body all enters manhole 201, the protective structure 101 is just placed on the manhole 201, at this moment, the operating personnel can make battery 208 energize the electromagnet by inner switch 207, make protective structure 101 be connected with bridge segment 202, then the operating personnel can also drive movable member 104 closed through hole 103 by second pusher, thereby ensure the operational safety and stability of the operating personnel being positioned at bridge segment 202, make it not be affected by environment and weather.During operation, the operating personnel can move movable member 104 by moving the second pusher, give ventilation inside manhole 201.After completing the operation, the operating personnel can give electromagnet de-energization by inner switch 207, now protective structure 101 separates with bridge structure, the operating personnel can remove protective structure 101 from manhole 201 tops, then move out bridge outside from manhole 201.

[0049] It is understandable that the protective structure 101 also has the function of preventing other people from falling into the interior of the bridge segment 202 through the manhole 201 .

[0050] It is understood that during the above operation, other personnel can also use the first pusher 206 to drive the moving member 104 to move, thereby ventilating the interior of the bridge segment 202. Other personnel can also control the electromagnet through an external switch to facilitate the movement of the protective structure 101. The above structure can be operated by external personnel in an emergency to ensure the working safety of the operators inside the bridge segment 202.

[0051] In the above embodiment, the frame 102 is made of aluminum alloy, which can reduce the weight of the protective structure 101 and make it easier for operators to carry it.

[0052] Specifically, the protective structure 101 also includes a detection device, which is located on the inner surface of the frame 102 (when the movable member 104 closes the through hole 103, the surface of the frame 102 in the space formed by the frame 102 and the bridge segment 202 belongs to the inner surface of the frame 102). After the movable member 104 closes the through hole 103, the operator will produce uncomfortable gas when performing operations such as repainting and welding inside the bridge segment 202. When the concentration of the gas reaches a certain level, it will have a certain impact on the safety of the operator. When the detection device detects that the concentration of the gas reaches a certain value (manually set), the detection device will issue a reminder (such as sound, light, etc.), and the operator can turn on the movable member 104 through the internal switch 207, so that the manhole 201 is connected to the outside world, and the internal space of the bridge segment 202 is ventilated to ensure the work safety of the operator.

[0053] Specifically, a protective pad is also provided on the protective structure 101, which is arranged on the side of the frame 102 that is in contact with the bridge, and the electromagnet is located between the protective pad and the frame 102, thereby preventing friction between the frame 102 and the bridge segment 202, or friction between the electromagnet and the bridge segment 202 during use.

[0054] The present invention also provides a bridge device, comprising a bridge and the protective structure 101 of any one of the above-described embodiments. The bridge is provided with a plurality of bridge segments 202, which are welded together to form the entire bridge. Each bridge segment 202 is provided with a manhole 201, and each manhole 201 can be provided with a protective structure 101. During use of the protective structure 101, the through hole 103 of the protective structure 101 covers the manhole 201. The bridge structure using the protective structure 101 can not only prevent other people or objects from falling into the manhole 201, but also ensure that workers performing operations such as repainting and welding on the bridge in the manhole 201 are not affected by the external environment and weather, thereby ensuring the safety and stability of the operators' operations.

[0055] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications may be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof may be combined with one another unless there is a conflict.

Claims

1. A protective structure capable of being installed on a manhole of a bridge, characterized in that: include: A frame body, wherein the frame body is provided with a through hole, and the through hole is capable of covering the manhole; A plurality of movable members, each movable member being capable of moving relative to the frame to close or open the through hole, each movable member having a first notch on one side and a second notch on the other side thereof, wherein adjacent movable members can be engaged with the first notch and the second notch through the first notch; A driving member and a rotating shaft, the frame is provided with a track, the driving member can move along the track, the driving member is provided with a plurality of racks, each of the racks is connected to the moving member through a rotating shaft, one end of the rotating shaft is meshed with the rack, and the other end of the rotating shaft is connected to the moving member; when the driving member moves along the track, the rack on the driving member also moves along the track, and the rack drives the rotating shaft to rotate, thereby driving the moving member to close the through hole or make the through hole connected to the outside world through the rotation of the rotating shaft between the initial position and the end position.

2. The protective structure according to claim 1, characterized in that: It also includes a pushing structure, which is connected to the driving member, wherein the pushing structure is located on the inner surface of the frame.

3. The protective structure according to claim 1, characterized in that: It also includes a switch structure and an electromagnet. The electromagnet is located on a side of the frame that is in contact with the bridge, and the switch structure is electrically connected to the electromagnet.

4. The protective structure according to claim 3, characterized in that: The switch structure includes an inner switch and an outer switch. The outer switch is located on the outer surface of the frame, and the inner switch is located on the inner surface of the frame. Both the inner switch and the outer switch can independently turn on or off the electromagnet.

5. The protective structure according to claim 1, characterized in that: It also includes a detection device, which is located on the inner surface of the frame and is used to detect gas concentration and provide information.

6. A bridge device, characterized in that include: A bridge, wherein a manhole is provided on the bridge; The protective structure according to any one of claims 1 to 5 is detachably connected to the bridge, and the through hole covers the manhole.

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