A prefabricated safety protection passage under a bridge

Abstract

This invention relates to the field of bridge construction technology, and more particularly to a prefabricated safety protection passage under a bridge, comprising: multiple frame modules, a canopy, and connecting rods; each frame module includes two connecting rod structures, each connecting rod structure including a front crossbar, a rear crossbar, a front upright, a rear upright, a front support rod, and a rear support rod; the top of the front upright is hinged to the front crossbar; the top of the rear upright is hinged to the rear crossbar; the front crossbar is hinged to the rear crossbar; the front upright is equipped with a sliding front slider, and the two ends of the front support rod are respectively hinged to the front slider and the top of the rear upright; the rear upright is equipped with a sliding rear slider, and the two ends of the rear support rod are respectively hinged to the rear slider and the top of the front upright; each canopy spans two frame modules; each connecting rod connects at least one front and rear upright in a frame module; and a vibration recorder is also included, installed between two adjacent frame modules, for recording the number of vibrations. This invention enables the reuse and rapid installation of the passage, effectively saving construction costs.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a prefabricated safety protection passage under a bridge. Background Technology

[0002] During the construction of highway bridges, safety protection passages need to be installed under the bridge to prevent damage to people and property from falling objects. Since highways are typically long and supported by numerous bridges, a large number of safety protection passages need to be laid along the roadside. This leads to frequent disassembly and assembly of traditional safety protection passages, and the construction time under the bridge is also considerable, affecting the construction progress. Therefore, prefabricated safety protection passages have emerged. These passages can be quickly assembled into larger passages by splicing together various modular sections, resulting in faster construction speeds, reusability, and effective cost savings. However, in existing prefabricated safety passages, each modular structure is large, resulting in low transportation efficiency and high assembly difficulty. Furthermore, vibrations in the construction environment can cause screws and bolts to loosen, and existing structures lack effective methods for conveniently inspecting the screws and bolts connecting the various passages, thus easily creating safety hazards. Summary of the Invention

[0003] This invention provides a prefabricated safety protection passage under a bridge, which can effectively solve the problems in the background art.

[0004] This invention provides a prefabricated safety protection passage under a bridge, comprising:

[0005] Multiple frame modules are spliced ​​together to form a channel frame;

[0006] Multiple canopies are installed on top of the passageway frame;

[0007] Multiple connecting rods are installed on the side of the channel frame;

[0008] Each frame module includes two symmetrically arranged linkage structures, and each linkage structure includes a front crossbar, a rear crossbar, a front upright, a rear upright, a front support rod, and a rear support rod.

[0009] The top of the front upright is hinged to the front crossbar; the top of the rear upright is hinged to the rear crossbar.

[0010] The front crossbar and the rear crossbar are hinged together, and the hinge point is located between the front upright and the rear upright;

[0011] The front upright is equipped with a sliding block that slides up and down, and the two ends of the front support rod are hinged to the front slider and the top of the rear upright, respectively.

[0012] The rear upright is equipped with a sliding rear slider that slides up and down, and the two ends of the rear support rod are hinged to the rear slider and the top of the front upright, respectively.

[0013] Each canopy connects all the front crossbars of two adjacent frame modules;

[0014] Each connecting rod connects to at least one front upright and one rear upright in a frame module;

[0015] It also includes a vibration recorder, which is installed on the rear and front uprights that fit together in two adjacent frame modules, to record the number of vibrations.

[0016] Furthermore, in each frame module, the end of the front crossbar extends away from the rear crossbar, and the end of the rear crossbar extends away from the front crossbar.

[0017] Furthermore, in each frame module, a limiting rod is set between the two rear crossbars. After the frame module is unfolded, the limiting rod fits against the bottom surface of the front crossbar.

[0018] Furthermore, in each frame module, the other end of the front crossbar extends toward the rear crossbar.

[0019] Furthermore, a first connecting post is provided at the end of the front crossbar, and a second connecting post is provided at the end of the rear crossbar; after the frame modules are assembled, the first connecting post extends into the front crossbar of the adjacent frame module, and the second connecting post extends into the rear crossbar of the adjacent frame module.

[0020] Furthermore, the ceiling includes an upper ceiling structure and a lower ceiling structure, with the upper ceiling structure being arc-shaped and the lower ceiling structure being flat.

[0021] Furthermore, the vibration recorder includes:

[0022] The mounting shell has an internal cavity and is equipped with a protrusion with a through hole;

[0023] The upper storage box is located at the top of the through hole and has an opening at the bottom;

[0024] The lower storage box is located at the bottom of the through hole;

[0025] The suspension disk is placed inside the mounting housing, with springs at the top and bottom connecting to the mounting housing; the side of the suspension disk has a through hole for partial obstruction.

[0026] Multiple indicator balls are placed in the upper storage box.

[0027] Furthermore, the sides of the suspension disk have a sloping structure.

[0028] Furthermore, the suspension disk and the through hole are located on the lateral sides of the mounting housing, respectively.

[0029] Furthermore, the top and bottom of the mounting housing are provided with handles that are screwed into the mounting housing via threads, and the springs at the top and bottom of the suspension disc are respectively connected to the two handles.

[0030] The technical solution of this invention can achieve the following technical effects:

[0031] This passageway utilizes a modular design, transforming it into an assembly of frame modules, a canopy, and connecting rods. This enables rapid construction and reuse of the passageway. The frame modules feature a foldable structure via a linkage mechanism, saving transport space and increasing transport capacity. Furthermore, both folding and unfolding are automated during hoisting, significantly improving construction efficiency. Additionally, the passageway is equipped with a vibration recorder, accurately recording the vibration of each frame module. This allows personnel to precisely identify potential safety hazards at connections, enhancing inspection efficiency and passageway safety. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the prefabricated safety protection passage under the bridge in this invention;

[0034] Figure 2 This is a side sectional view of the prefabricated safety protection passage under the bridge in this invention;

[0035] Figure 3 This is a schematic diagram of the framework module in this invention;

[0036] Figure 4 This is a side view of the frame module when it is unfolded in this invention;

[0037] Figure 5 This is a side view of the frame module when it is folded in this invention;

[0038] Figure 6 This is a schematic diagram of another structure of the ceiling in this invention;

[0039] Figure 7 This is a schematic diagram of the vibration recorder in this invention;

[0040] Figure 8 This is a cross-sectional view of the vibration recorder in this invention;

[0041] Figure 9 for Figure 8 Enlarged view of point A.

[0042] Reference numerals: 1. Frame module; 11. Front crossbar; 11a. First connecting column; 12. Rear crossbar; 12a. Second connecting column; 13. Front upright; 14. Rear upright; 15. Front support rod; 16. Rear support rod; 17. Limiting rod; 2. Canopy; 21. Upper top structure; 22. Lower top structure; 3. Connecting rod; 4. Vibration recorder; 41. Mounting shell; 41a. Through hole; 41b. Handle; 42. Upper storage box; 43. Lower storage box; 44. Suspension disc; 45. Indicator ball. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] This invention relates to a prefabricated safety protection passage under a bridge, such as... Figures 1-2 As shown, it includes:

[0046] Multiple frame modules 1, each frame module 1 is 1 to 2 meters long. The corresponding number of frame modules 1 is used according to the length of the safety protection passage. The frame modules 1 are spliced ​​together to form the overall passage frame of the safety protection passage.

[0047] Multiple canopies 2 are installed on top of the channel frame after the channel frame is assembled; each canopy 2 spans two adjacent frame modules 1.

[0048] Multiple connecting rods 3 are installed on the side of the channel frame; each connecting rod 3 spans at least one frame module 1 to reinforce the frame module 1;

[0049] When necessary, a load-bearing base can be added to the bottom of frame module 1, or the bottom of frame module 1 can be connected to an object fixed on the ground to improve the overall stability of the channel.

[0050] To save on the transport volume of frame module 1, this design incorporates a foldable structure for each frame module 1. Each frame module 1 includes two symmetrically arranged linkage structures. Each linkage structure comprises a front crossbar 11, a rear crossbar 12, a front upright 13, a rear upright 14, a front support rod 15, and a rear support rod 16. Figures 3-5As shown, the specific connection forms of the linkage structure on each side are as follows:

[0051] The top of the front upright 13 is hinged to the front crossbar 11; the top of the rear upright 14 is hinged to the rear crossbar 12.

[0052] The front crossbar 11 is hinged to the rear crossbar 12, and the hinge point is located between the front upright 13 and the rear upright 14.

[0053] The front upright 13 is equipped with a front slider that slides up and down, and the two ends of the front support rod 15 are respectively hinged to the front slider and the top of the rear upright 14;

[0054] The rear upright 14 is equipped with a rear slider that slides up and down, and the two ends of the rear support rod 16 are respectively hinged to the rear slider and the top of the front upright 13.

[0055] Under this connection structure, frame module 1 can achieve the following: Figure 4 The unfolded state shown and as Figure 5 As shown in the folded state, the frame module 1 is folded during transportation, so that more frame modules 1 can be transported in a single shipment. When it arrives at the construction site, the frame module 1 is unfolded and assembled, which can greatly shorten the construction cycle.

[0056] After two adjacent frame modules 1 are spliced ​​together, the front crossbar 11 of one frame module 1 will be close to the rear crossbar 12 of the other frame module 1, and the front crossbar 11 and the rear crossbar 12 will be connected by bolts. The two front crossbars 11 of each frame module 1 are connected at their front and rear ends by connecting crossbars. After two adjacent frame modules 1 are spliced ​​together, the connecting crossbars will also be close to each other, and the two connecting crossbars will be connected by bolts. After all connections are completed, the two frame modules 1 are connected and fixed in the circumferential direction.

[0057] When installing the canopy 2, each canopy 2 is connected to all the front crossbars 11 of two adjacent frame modules 1. That is, the rear half of the front crossbar 11 of one frame module 1 is connected to the front half of the canopy 2, and the front half of the front crossbar 11 of the other frame module 1 is connected to the rear half of the canopy 2, thus forming a structure in which a canopy 2 spans the front crossbars 11 of two frame modules 1. This not only avoids the separation and movement between the frame modules 1, but also distributes the force evenly to the two frame modules 1 when a falling object hits the canopy 2, thereby improving the protective capability of the safety passage.

[0058] When installing the connecting rod 3, each connecting rod 3 is connected to at least one front upright 13 and rear upright 14 in the frame module 1, thereby fixing the unfolded state of the frame module 1 and strengthening the structural strength of the frame module 1 in the unfolded state.

[0059] Since the frame modules 1, the ceiling 2, and the connecting rods 3 are all fixed with bolts, the safety passage will continuously vibrate during construction due to falling objects hitting the ceiling 2, heavy machinery passing by, or other impacts. This vibration may cause the connecting bolts to loosen. Because the vibration is irregular in both occurrence and location, it is necessary to rationally schedule the timing and location of bolt loosening detection to avoid wasting manpower. Therefore, this solution includes a vibration recorder 4, installed on the rear uprights 14 and front uprights 13 of adjacent frame modules 1 to record the vibration frequency at the connection points. When the recorded vibration frequency reaches a certain value, loosening of the connecting parts may occur, requiring personnel to conduct a safety inspection to ensure the safety of the connection. Ideally, one vibration recorder 4 should be installed between every two frame modules 1, but if the safety passage is too long, the interval between the vibration recorders 4 can be appropriately increased.

[0060] Preferably, in each frame module 1, the end of the front crossbar 11 extends away from the rear crossbar 12, and the end of the rear crossbar 12 extends away from the front crossbar 11. The ends of the front crossbar 11 and the rear crossbar 12 extend to the outside of the front upright 13 and the rear upright 14. During assembly, these two outer extensions serve as lifting points F, such as... Figure 4 As shown, the suspension rope exerts an upward force on the two extended ends. Under these conditions, the ends of the front crossbar 11 and the rear crossbar 12 located between the front upright 13 and the rear upright 14 tend to flip downward, thereby automatically unfolding the frame module 1.

[0061] Preferably, in each frame module 1, a limiting rod 17 is provided between the two rear crossbars 12. After the frame module 1 is unfolded, the limiting rod 17 fits against the bottom surface of the front crossbar 11, thereby ensuring the stability of the frame module 1 after unfolding, and preventing the front crossbar 11 and the rear crossbar 12 from overturning during the aforementioned lifting process.

[0062] Preferably, in each frame module 1, the other end of the front crossbar 11 extends towards the rear crossbar 12, such that the other end of the front crossbar 11 passes over the hinge point between the front crossbar 11 and the rear crossbar 12. This allows for easier disassembly of the frame module 1. Figure 5 As shown, this end can be used as the lifting point F, so that the frame module 1 can be automatically folded up when being lifted.

[0063] Preferably, a first connecting post 11a is provided at the end of the front crossbar 11, and a second connecting post 12a is provided at the end of the rear crossbar 12. After the frame modules 1 are spliced, the first connecting post 11a extends into the front crossbar 11 of the adjacent frame module 1, and the second connecting post 12a extends into the rear crossbar 12 of the adjacent frame module 1. In this way, the front crossbars 11 in all frame modules 1 can be connected into one piece, and the rear crossbars 12 in all frame modules 1 can be connected into one piece. The rods can transmit force to each other, thereby further improving the overall structural strength of the safety protection passage.

[0064] In addition to the ceiling 2 Figures 1-2 In addition to the flat-top structure shown, in situations where large objects are prone to falling, the structure can be configured as follows: Figure 6 As shown, it includes an upper top structure 21 and a lower top structure 22. The upper top structure 21 is arc-shaped, and the lower top structure 22 is flat. After the upper top structure 21 is installed on the lower top structure 22, a cavity is formed between the two. When a falling object falls on the upper top structure 21, the deformation of the upper top structure 21 will absorb the impact force, thereby improving the safety of the passage.

[0065] The vibration recorder 4 can utilize existing vibration sensors, but these sensors rely on electricity and require accompanying data reading and analysis equipment. This not only increases manufacturing costs but also makes them prone to damage in harsh construction environments. Therefore, this design presents a purely mechanical vibration recorder 4. Figures 7-9 As shown, it includes:

[0066] Mounting housing 41 is fixedly installed in the rear upright 14 and front upright 13 that fit together in two adjacent frame modules 1, and is used to support other components of vibration recorder 4; the interior of mounting housing 41 is a cavity, and a protrusion with a through hole 41a is provided in the vertical center of the cavity.

[0067] The upper storage box 42 is made of transparent plastic. After installation, it is located at the top of the through hole 41a and has an opening at the bottom. After installation, the opening is aligned with the through hole 41a and the diameter of the opening is similar to the diameter of the through hole 41a.

[0068] The lower storage box 43 is made of transparent plastic and is located at the bottom of the through hole 41a after installation;

[0069] The suspension disk 44 is placed inside the mounting shell 41. Springs connected to the mounting shell 41 are provided at the top and bottom, and the springs are in a stretched state. The side of the suspension disk 44 covers the through hole 41a. The suspension disk 44 does not abut against any part of the mounting shell 41, the upper storage box 42, or the lower storage box 43, ensuring that the suspension disk 44 can swing freely.

[0070] Multiple indicator balls 45 are placed in the upper storage box 42. The diameter of the indicator balls 45 is slightly smaller than that of the through hole 41a. The indicator balls 45 are preferably made of red plastic.

[0071] The working process and principle of this vibration recorder 4 are as follows:

[0072] like Figure 9 As shown, the indicator ball 45, which is placed in the upper storage box 42, will fall into the through hole 41a through the opening at the bottom of the upper storage box 42. Since the side of the suspension disk 44 blocks part of the through hole 41a, the indicator ball 45 cannot continue to fall. When the channel vibrates, the vibration is transmitted to the vibration recorder 4, which causes the suspension disk 44 to shake. The greater the vibration, the greater the shaking amplitude of the suspension disk 44. When the suspension disk 44 shakes out of the through hole 41a, without the suspension disk 44 to block it, the indicator ball 45 will fall into the lower storage box 43. The suspension disk 44 is out for a very short time, usually only enough for 1 to 2 indicator balls 45 to fall, and then the suspension disk 44 will return to its position. Thus, each time an indicator ball 45 is added to the lower storage box 43, it means that the frame module 1 has experienced a severe vibration. By observing the number of indicator balls 45 in the lower storage box 43, the number of vibrations experienced by the frame module 1 can be known, which can intuitively tell the user whether the frame module 1 corresponding to the vibration recorder 4 needs to be checked for loose bolts.

[0073] Preferably, the side of the suspension disk 44 is configured as a sloped structure. Compared to a cylindrical surface, the sloped structure can prevent the indicator ball 45 from getting stuck when the suspension disk 44 shakes toward the through hole 41a. The sloped structure is formed by bending the side of the suspension disk 44 downward.

[0074] Preferably, the suspension disk 44 and the through hole 41a are located on the lateral sides of the mounting shell 41, which can effectively increase the swaying amplitude of the suspension disk 44, thereby ensuring that the indicator ball 45 falls smoothly.

[0075] The amount of tension of the two springs at the top and bottom of the suspension disk 44 directly determines the sensitivity of the suspension disk 44 to vibration. Different scenarios have different sensitivity requirements for the vibration recorder 4. In order to make the sensitivity adjustable, the vibration recorder 4 is provided with handles 41b at the top and bottom of the mounting shell 41, which are screwed into the mounting shell 41. The springs at the top and bottom of the suspension disk 44 are respectively connected to the two handles 41b. In this way, by rotating the handles 41b to change the length of the handles 41b extending into the mounting shell 41, the amount of tension of the two springs can be changed, thereby realizing the adjustment of the sensitivity.

[0076] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A prefabricated safety protection passage under a bridge, characterized in that, include: Multiple frame modules (1) are spliced ​​together to form a channel frame; Multiple canopies (2) are provided on top of the channel frame; Multiple connecting rods (3) are provided on the side of the channel frame; Each of the frame modules (1) includes two symmetrically arranged link structures, each link structure including a front crossbar (11), a rear crossbar (12), a front upright (13), a rear upright (14), a front support rod (15), and a rear support rod (16); The top of the front upright (13) is hinged to the front crossbar (11); the top of the rear upright (14) is hinged to the rear crossbar (12); The front crossbar (11) is hinged to the rear crossbar (12), and the hinge point is located between the front upright (13) and the rear upright (14); The front upright (13) is provided with a front slider that slides up and down, and the two ends of the front support rod (15) are respectively hinged to the front slider and the top of the rear upright (14); The rear upright (14) is provided with a rear slider that slides up and down, and the two ends of the rear support rod (16) are respectively hinged to the rear slider and the top of the front upright (13); Each of the canopies (2) connects all of the front crossbars (11) in two adjacent frame modules (1); Each of the connecting rods (3) connects at least one of the front uprights (13) and the rear uprights (14) in a frame module (1); It also includes a vibration recorder (4), which is installed on the rear upright (14) and the front upright (13) that are attached to each other in the two adjacent frame modules (1), for recording the number of vibrations.

2. The prefabricated safety protection passage under the bridge according to claim 1, characterized in that, In each of the frame modules (1), the end of the front crossbar (11) extends away from the rear crossbar (12), and the end of the rear crossbar (12) extends away from the front crossbar (11).

3. The prefabricated safety protection passage under the bridge according to claim 2, characterized in that, In each of the frame modules (1), a limiting rod (17) is provided between the two rear crossbars (12). After the frame module (1) is unfolded, the limiting rod (17) fits against the bottom surface of the front crossbar (11).

4. The prefabricated safety protection passage under the bridge according to claim 2, characterized in that, In each of the frame modules (1), the other end of the front crossbar (11) extends toward the rear crossbar (12).

5. The prefabricated safety protection passage under the bridge according to claim 1, characterized in that, The end of the front crossbar (11) is provided with a first connecting post (11a), and the end of the rear crossbar (12) is provided with a second connecting post (12a). After the frame modules (1) are spliced, the first connecting post (11a) extends into the front crossbar (11) of the adjacent frame module (1), and the second connecting post (12a) extends into the rear crossbar (12) of the adjacent frame module (1).

6. The prefabricated safety protection passage under the bridge according to claim 1, characterized in that, The canopy (2) includes an upper canopy structure (21) and a lower canopy structure (22). The upper canopy structure (21) is arc-shaped, and the lower canopy structure (22) is flat.

7. The prefabricated safety protection passage under the bridge according to claim 1, characterized in that, The vibration recorder (4) includes: The mounting shell (41) has an internal cavity and is provided with a protrusion with a through hole (41a); The upper storage box (42) is located at the top of the through hole (41a) and has an opening at the bottom. The lower storage box (43) is located at the bottom of the through hole (41a); A suspension disk (44) is placed inside the mounting shell (41), and springs connected to the mounting shell (41) are provided at the top and bottom; the side of the suspension disk (44) partially blocks the through hole (41a); Multiple indicator balls (45) are placed in the upper storage box (42).

8. The prefabricated safety protection passage under the bridge according to claim 7, characterized in that, The side of the suspension disk (44) is a sloping structure.

9. The prefabricated safety protection passage under the bridge according to claim 7, characterized in that, The suspension disk (44) and the through hole (41a) are located on the lateral sides of the mounting shell (41), respectively.

10. The prefabricated safety protection passage under the bridge according to claim 7, characterized in that, The top and bottom of the mounting housing (41) are provided with handles (41b) that are screwed into the mounting housing (41) by threads, and the springs at the top and bottom of the suspension disc (44) are respectively connected to the two handles (41b).

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