Construction escape safety structure

Abstract

This utility model relates to the field of building construction technology and discloses a building construction escape safety structure, including a foundation, a base fixedly connected to the top of the foundation, a protective mechanism on the outside of the base, a buffer mechanism on the top of the foundation, and a blocking mechanism on the outside of the base. The protective mechanism includes a fixed plate and a connecting plate. The fixed plate is bolted to the top of the base. A bracket is fixedly connected to the outside of the fixed plate, and a rotating seat is fixedly connected to the outside of the bracket. A locking plate is rotatably connected inside the rotating seat. In this utility model, by pushing the connecting shell on the bracket, the connecting column is moved to a suitable position. Then, the locking plate in the rotating seat is rotated to engage with the connecting column through the connecting hole, thereby fixing the upper and lower parts of the protective mechanism, effectively reducing protective gaps and improving the overall protective performance of the protective mechanism.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a building construction escape safety structure. Background Technology

[0002] Construction sites, especially temporary houses and prefabricated buildings, are densely populated and relatively cramped. These temporary structures are typically used for accommodation and offices, and in the event of an emergency such as a fire or earthquake, existing evacuation routes are insufficient to meet the needs of rapid evacuation.

[0003] A search revealed Chinese Patent Publication No. CN214912786U, which discloses an escape pole structure for temporary prefabricated buildings in construction, relating to the field of construction. This structure is installed on the outside of the staircase of a temporary prefabricated building and includes a buffer base on the ground, an escape pole vertically fixed to the buffer base, a steel collar sleeved on the top of the escape pole, a wall-mounted rod connecting the steel collar to the steel frame of the temporary prefabricated building, and protective information panels welded to the outside of the guardrails on each floor of the temporary prefabricated building. The buffer base includes an outer fixing ring, a layer of fine stones poured into the lower part of the outer fixing ring, and a layer of fine sand placed on top of the fine stones. This utility model solves the safety hazards existing in escape measures for temporary prefabricated buildings in construction during emergency situations.

[0004] The aforementioned patent specification mentions "a safety structure for escaping temporary prefabricated buildings, including a buffer base on the ground, an escape pole vertically fixed to the buffer base, a steel collar sleeved on the top of the escape pole, a wall-mounted rod connecting the steel collar to the steel frame of the temporary prefabricated building, and a protective propaganda baffle welded to the outside of the guardrail of each floor passage of the temporary prefabricated building." This structure can facilitate escaping the temporary prefabricated building in emergencies. However, temporary prefabricated buildings often have multiple floors, leading to a common design for safety mechanisms that are segmented vertically. This results in numerous gaps between the upper and lower sections. In actual use, during a panicked escape, limbs can easily become stuck in these gaps, or people may fall through them due to a lack of effective protection. This not only severely impacts escape efficiency but also increases the risk of injury or death. Therefore, this paper proposes a construction escape safety structure to address these issues. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a construction escape safety structure, which aims to improve the problem that the upper and lower parts of the protective mechanism of some existing devices have many gaps in the middle, making it easy to fall through the gaps during use.

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

[0007] A construction escape safety structure includes a foundation, a base fixedly connected to the top of the foundation, a protective mechanism on the outside of the base, a buffer mechanism on the top of the foundation, and a blocking mechanism on the outside of the base. The protective mechanism includes a fixed plate and a connecting plate. The fixed plate is bolted to the top of the base. A bracket is fixedly connected to the outside of the fixed plate. A rotating seat is fixedly connected to the outside of the bracket. A locking plate is rotatably connected inside the rotating seat. A shell is slidably connected to the outside of the bracket. A limiting component is fixedly connected to the top of the bracket. The connecting plate is bolted to the bottom of the base. A second bracket is fixedly connected to the outside of the connecting plate. A connecting shell is slidably connected to the outside of the second bracket. A connecting column is fixedly connected to the outside of the connecting shell. A handle is fixedly connected to the outside of the connecting shell.

[0008] Through the above technical solution: the foundation supports the infrastructure. When the protective mechanism is working, the bracket one on the fixed plate is connected to the rotating seat. The card plate can rotate around the rotating seat, and the outer shell can slide on the bracket one. The sliding position is controlled by the limiting component. The bracket two on the connecting plate is connected to the connecting shell. By pulling the handle, the connecting shell is driven to slide on the bracket two, and the connecting column moves accordingly.

[0009] As a further description of the above technical solution:

[0010] The buffer mechanism includes a bottom shell, the bottom outer side of which is fixedly connected to the top of the foundation, an outer plate slidably connected to the top inner side of the bottom shell, a plurality of limiting rods fixedly connected to the top inner side of the bottom shell, each limiting rod having a retraction spring sleeved inside, a buffer layer fixedly connected to the top of the outer plate, and an escape rod fixedly connected to the top of the bottom shell.

[0011] The above technical solution works as follows: when the impact reaches the buffer layer, the buffer layer causes the outer plate to slide on the inner side of the top of the bottom shell. The outer plate squeezes the contraction spring on the limiting rod, causing it to compress and deform. At the same time, the escape rod provides a point of grabbing and leverage for personnel. The entire process achieves the buffering function through the deformation of the contraction spring.

[0012] As a further description of the above technical solution:

[0013] The top outer side of the escape rod is bolted with a fastener, and the fastener is externally fixedly connected with a support.

[0014] Through the above technical solution, the escape pole is fixed to the infrastructure by the fixing component on the top outer side.

[0015] As a further description of the above technical solution:

[0016] The limiting component includes a protective net, the bottom of which is fixedly connected to the top of the bracket, and a top cover is fixedly connected to the top of the protective net.

[0017] Through the above technical solution: the support frame provides a stable foundation for the protective net, and the protective net, as the main part of the limiting component, forms a protective space above the support frame, with the top cover located on top of the protective net.

[0018] As a further description of the above technical solution:

[0019] The blocking mechanism includes a fence, the bottom of which is fixedly connected to the outside of the infrastructure, a stop bar is slidably connected inside the fence, and a connecting block is fixedly connected to the outside of the stop bar.

[0020] The above technical solution involves the infrastructure providing support as a basic structure, the fence being based on the outside of the infrastructure, the first stop bar sliding inside the fence, its position being able to be changed as needed, and the connecting block moving with the first stop bar.

[0021] As a further description of the above technical solution:

[0022] The fence is slidably connected to a second stop bar inside, and the second stop bar is rotatably connected to a buckle on the outside.

[0023] Through the above technical solution: the fence provides a sliding track for the second barrier, and the second barrier can slide and adjust its position inside it, while the second barrier is locked to rotate outside.

[0024] As a further description of the above technical solution:

[0025] The inside of the card plate is engaged with the outside of the connecting post, the outside of the second stop rod is supported by the outside of the connecting block, and the outside of the buckle is engaged with the outside of the first stop rod.

[0026] The above technical solution involves: the card plate and the connecting column engaging and positioning; the second stop rod supporting the connecting block; and the first stop rod engaging with the card.

[0027] As a further description of the above technical solution:

[0028] The outer plate is internally slidably connected to the outside of the escape rod, the top of the retraction spring is supported on the bottom inner side of the outer plate, and the external bolt of the support member is bolted to the top outer side of the infrastructure.

[0029] The above technical solution provides an installation base for the support components. The outer plate can slide along the outside of the escape rod. The top of the retractable spring supports the inner side of the bottom of the outer plate. When the outer plate slides, it will compress the retractable spring.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, by pushing the connecting shell on the bracket two with the handle, the connecting column is moved to a suitable position. Then, the card plate in the rotating seat is rotated so that it is engaged with the connecting column through the connecting hole, thereby fixing the upper and lower parts of the protective mechanism, effectively reducing the protective gap and improving the overall protective performance of the protective mechanism.

[0032] 2. In this utility model, the top fixing part and support part of the escape pole are connected to the infrastructure, and the bottom is fixed to the bottom shell, so that when people escape through the escape pole and land, the outer plate can slide stably along the limiting rod, the compression spring effectively absorbs the impact force, and the impact buffer layer further reduces the impact, so as to solve the problem that people are easily subjected to large impact force when escaping through the infrastructure and landing through the escape pole, which can easily cause physical injury. Attached Figure Description

[0033] Figure 1 This is a three-dimensional schematic diagram of the construction escape safety structure proposed in this utility model;

[0034] Figure 2 This is a schematic diagram of the escape pole of the building construction escape safety structure proposed in this utility model;

[0035] Figure 3 This is a schematic diagram of the card plate of the building construction escape safety structure proposed in this utility model.

[0036] Figure 4 This is a schematic diagram of the connecting column of the building construction escape safety structure proposed in this utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the barrier bar of the building construction escape safety structure proposed in this utility model;

[0038] Figure 6 This is a schematic diagram of the outer panel of the building construction escape safety structure proposed in this utility model.

[0039] Legend:

[0040] 1. Foundation; 2. Infrastructure; 3. Protective Mechanism; 31. Fixing Plate; 32. Bracket 1; 33. Rotary Seat; 34. Clamping Plate; 35. Outer Shell; 36. Connecting Plate; 37. Bracket 2; 38. Connecting Shell; 39. Connecting Column; 310. Handle; 4. Limiting Components; 41. Protective Net; 42. Top Cover; 5. Blocking Mechanism; 51. Fence; 52. Barrier 1; 53. Connecting Block; 54. Barrier 2; 55. Buckle; 6. Buffer Mechanism; 61. Bottom Shell; 62. Outer Plate; 63. Limiting Rod; 64. Retraction Spring; 65. Buffer Layer; 66. Escape Rod; 67. Fixing Component; 68. Support Component. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a construction escape safety structure, including a foundation 1, which is the base of the entire device. A base 2 is fixedly connected to the top of the foundation 1. The base 2 serves as the main part of the construction and provides a temporary safe shelter for construction workers. A protective mechanism 3 is provided on the outside of the base 2, a buffer mechanism 6 is provided on the top of the foundation 1, and a blocking mechanism 5 is provided on the outside of the base 2.

[0043] Specifically, foundation 1 serves as the base of the entire device, stably supporting the structure above. Infrastructure 2 is fixedly connected to the top of foundation 1. It is the main part of the construction and provides a temporary safe shelter for construction workers. Protective mechanisms 3 are installed on the outside of infrastructure 2. Buffer mechanisms 6 installed on the top of foundation 1 can buffer when personnel escape and land. At the same time, blocking mechanisms 5 on the outside of infrastructure 2 can prevent construction workers from falling accidentally. All parts of the structure work together to ensure the safety of personnel during the construction process.

[0044] The protective mechanism 3 includes a fixing plate 31 and a connecting plate 36. The fixing plate 31 is externally bolted to the top side of the base 2. The fixing plate 31 is used to fix the bracket 32, providing an installation foundation for the upper structure of the protective mechanism 3 and ensuring the stability of the upper protective structure. The fixing plate 31 is externally fixedly connected to the bracket 32, which supports the rotating seat 33 and the outer shell 35, and also provides an installation position for the limiting component 4. It is an important supporting component of the upper structure of the protective mechanism 3. The bracket 33 is externally fixedly connected to the rotating seat 33, which is connected to the clamp. The plate 34 is rotatably connected, allowing the clamping plate 34 to rotate flexibly, realizing the engagement and disengagement of the clamping plate 34 and the connecting post 39. The internal rotating part of the rotating base 33 is rotatably connected to the clamping plate 34. The external part of the clamping plate 34 has multiple connecting holes to realize the engagement or disengagement with the connecting post 39, which serves to fix and connect. The external part of the bracket 32 ​​is slidably connected to the outer shell 35. The outer shell 35 can protect the bracket 32 ​​and prevent external factors such as dust and rainwater from corroding the internal components. Warning signs can be installed on the outside. The top of the bracket 32 ​​is fixedly connected to the limiting component 4.

[0045] Specifically, the fixing plate 31 is bolted to the top of the base 2 to provide support for the upper structure of the protective mechanism 3. The fixing plate 31 is fixed to the outside of the bracket 32, which supports the rotating seat 33 and the outer shell 35, and also provides an installation position for the limiting component 4. The rotating seat 33 is fixed to the outside of the bracket 32, and the internal part is rotatably connected to the clamping plate 34. The clamping plate 34 has multiple connecting holes on the outside, which can rotate flexibly and engage or disengage with the connecting column 39. The outer shell 35 is slidably connected to the outside of the bracket 32, which can protect the bracket 32 ​​from external factors such as dust and rain, and can also install warning signs on its outside. In addition, the limiting component 4 is fixedly connected to the top of the bracket 32.

[0046] The limiting component 4 includes a protective net 41, which is used to block external debris, falling personnel, and other dangerous factors, providing a safe protective barrier for construction workers. The bottom of the protective net 41 is fixedly connected to the top of the support frame 32, and the top of the protective net 41 is fixedly connected to a top cover 42, which is used to shield against sunlight, rain, and other natural elements. The external bolts of the connecting plate 36 are connected to the external bottom side of the base 2. The connecting plate 36 is used to fix the support frame 37 and provides an installation foundation for the lower structure of the protective mechanism 3. The plate 36 is externally fixedly connected to a bracket 37, which supports the connecting shell 38 and the connecting post 39. The connecting shell 38 is externally slidably connected to the bracket 37, which connects the connecting post 39 and the handle 310. The connecting post 39 is externally fixedly connected to the connecting shell 38, and the connecting post 39 and the clamping plate 34 connect the connecting shell 38 to the clamping plate 34. The handle 310 is externally fixedly connected to the connecting shell 38, which facilitates the operation of the connecting shell 38 sliding on the bracket 37.

[0047] Specifically, in the limiting component 4, the bottom of the protective net 41 is fixed to the top of the bracket 32, and the top is connected to the top cover 42. The connecting plate 36 is installed on the bottom side of the base 2 by bolts to provide support for the lower structure of the protective mechanism 3. The externally fixed bracket 37 supports the connecting shell 38 and the connecting column 39. The connecting shell 38 can slide outside the bracket 37. The externally fixed connecting column 39 can cooperate with the connecting hole of the clamping plate 34 to achieve a snap-fit, thereby fixing the connecting shell 38 to the clamping plate 34. At the same time, the handle 310 fixed outside the connecting shell 38 makes it easy for construction personnel to operate the connecting shell 38 to slide and adjust its position on the bracket 37.

[0048] Reference Figure 1 , Figure 2 and Figure 6The buffer mechanism 6 includes a bottom shell 61, which is used to fix the limiting rods 63 and the escape rods 66 and to withstand the pressure generated during the buffering process. The bottom outer side of the bottom shell 61 is fixedly connected to the top of the foundation 1. The top inner side of the bottom shell 61 is slidably connected to an outer plate 62. When the outer plate 62 is impacted by external force, it can slide inside the bottom shell 61. Multiple limiting rods 63 are fixedly connected to the top inner side of the bottom shell 61. The limiting rods 63 are used to limit the sliding direction of the outer plate 62 and prevent the outer plate 62 from shifting or tilting during the sliding process. Each limiting rod 63 is fitted with a contraction spring 64. The contraction spring 64 plays the role of absorbing and storing energy during the buffering process and reduces the impact of external force through its own elastic deformation. The top of the outer plate 62 is fixedly connected to a buffer layer 65. The buffer layer 65 is in direct contact with objects or personnel and is used to disperse and absorb the impact force, further reduce the impact when landing, protect personnel safety, and at the same time play a certain role in wear resistance and anti-slip. The top of the bottom shell 61 is fixedly connected to an escape rod 66, which provides an escape route for construction personnel.

[0049] Specifically, the buffer mechanism 6 is based on the bottom shell 61, with its outer bottom fixed to the top of the foundation 1. Multiple limiting rods 63 and escape rods 66 are fixedly connected to the inner top side, and the outer plate 62 is slidably connected. The multiple limiting rods 63 are distributed on the inner top side of the bottom shell 61, and a contraction spring 64 is sleeved inside them to provide guidance and constraint for the sliding of the outer plate 62. The top of the outer plate 62 is connected to the buffer layer 65. Under the impact of external force, the outer plate 62 can slide along the limiting rods 63 in the bottom shell 61, compressing the contraction spring 64. The escape rod 66 is vertically fixed to the top of the bottom shell 61, providing an escape path for construction personnel from the foundation 2 to the buffer mechanism 6.

[0050] The top outer side of the escape rod 66 is bolted with a fastener 67, which is used to connect the support member 68 and fix the escape rod 66 to the base 2 to ensure the stability and reliability of the escape rod 66. The support member 68 is fixedly connected to the outside of the fastener 67. The support member 68 is used for connection and support. The inside of the outer plate 62 is slidably connected to the outside of the escape rod 66. The top of the compression spring 64 is supported on the bottom inner side of the outer plate 62. The outside of the support member 68 is bolted to the top outer side of the base 2.

[0051] Specifically, the top outer side of the escape rod 66 is connected to the fixing member 67 by bolts, and the other side of the fixing member 67 is fixed to the support member 68. The support member 68 is then connected to the top outer side of the base 2 by bolts, thus forming a stable connection structure between the escape rod 66 and the base 2. The outer plate 62 is fitted over the outside of the escape rod 66 and can slide along it. The top of the compression spring 64 abuts against the bottom inner side of the outer plate 62. When the outer plate 62 is impacted by external force and slides down the escape rod 66, the compression spring 64 is compressed.

[0052] Reference Figure 1 and Figure 5The blocking mechanism 5 includes a fence 51, which is used to prevent construction workers from falling accidentally. The bottom of the fence 51 is fixedly connected to the outside of the infrastructure 2. A first stop bar 52 is slidably connected inside the fence 51. The first stop bar 52 is used to cooperate with the second stop bar 54 to prevent construction workers from falling accidentally when the protective mechanism 3 is not in use. A connecting block 53 is fixedly connected to the outside of the first stop bar 52. The connecting block 53 is used to connect and support the first stop bar 52 and the second stop bar 54 together. The second stop bar 54 is slidably connected inside the fence 51. The second stop bar 54 is used to block and protect workers. A buckle 55 is rotatably connected to the outside of the second stop bar 54. The buckle 55 is used to snap the first stop bar 52 and the second stop bar 54 together. It can be quickly opened when needed. The inside of the clamp plate 34 is snapped to the outside of the connecting post 39. The outside of the second stop bar 54 is supported by the outside of the connecting block 53. The outside of the buckle 55 is snapped to the outside of the first stop bar 52.

[0053] Specifically, the blocking mechanism 5 is based on the fence 51, and its bottom is fixedly connected to the outside of the infrastructure 2 to form a preliminary protective boundary. The fence 51 is equipped with a sliding stop bar 1 52 and a stop bar 2 54. The outside of the stop bar 1 52 is fixedly connected by a connecting block 53 for connecting the stop bar 2 54. In use, by sliding the stop bar 1 52 and the stop bar 2 54 inside the fence 51 to adjust their positions, the bottom of the stop bar 2 54 is supported by the connecting block 53. Then, the buckle 55 on the outside of the stop bar 2 54 is rotated to make it snap into the stop bar 1 52, thus achieving a fixed connection between the two. When the protective mechanism 3 is activated, the locking plate 34 snaps into the connecting post 39.

[0054] Working principle: By pushing the connecting shell 38 onto the bracket 37 through the handle 310, the connecting column 39 is moved to the appropriate position. The locking plate 34 in the rotating base 33 is rotated to engage with the connecting column 39 through the connecting hole, fixing the upper and lower parts of the protective mechanism 3 and reducing the protective gap. The fixing plate 31 and the connecting plate 36 provide the installation base for the bracket 32 ​​and the bracket 37 respectively. The bracket 32 ​​supports the rotating base 33, and the shell 35 slides outside the bracket 32, making the whole stable. The bracket 37 supports the connecting shell 38 and the connecting column 39. The limiting component 4 is fixed on the top of the bracket 32. The protective net 41 reduces the protective gap, and the top cover 42 protects against rain and prevents slippage during use.

[0055] When personnel escape from the infrastructure 2 through the escape pole 66, the top of the escape pole 66 is connected to the infrastructure 2 through the fixing part 67 and the support part 68, and the bottom is fixed to the bottom shell 61. When personnel land, they impact the buffer layer 65, and the outer plate 62 slides along the limiting rod 63 inside the bottom shell 61. The compression spring 64 absorbs the impact force, and the limiting rod 63 ensures that the sliding direction of the outer plate 62 is stable.

[0056] When the escape rod 66 is not needed, block the opening of the fence 51, slide the first stop bar 52 to a suitable position inside the fence 51, then slide the second stop bar 54 to support it on the connecting block 53, and rotate the buckle 55 to lock the first stop bar 52 and the second stop bar 54 together to strengthen the blocking strength. When an emergency occurs and the escape rod 66 is needed, the operation is reversed to open the opening of the fence 51 and leave the infrastructure 2 to reach the foundation 1.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction escape safety structure, including a foundation (1), characterized in that: The foundation (1) is fixedly connected to the top of the infrastructure (2), the infrastructure (2) is provided with a protective mechanism (3), the foundation (1) is provided with a buffer mechanism (6), and the infrastructure (2) is provided with a blocking mechanism (5). The protective mechanism (3) includes a fixed plate (31) and a connecting plate (36). The fixed plate (31) is bolted to the top of the base (2). A bracket (32) is fixedly connected to the outside of the fixed plate (31). A rotating seat (33) is fixedly connected to the outside of the bracket (32). A clamping plate (34) is rotatably connected inside the rotating seat (33). A shell (35) is slidably connected to the outside of the bracket (32). A limiting component (4) is fixedly connected to the top of the bracket (32). The connecting plate (36) is bolted to the bottom of the base (2). A bracket (37) is fixedly connected to the outside of the connecting plate (36). A connecting shell (38) is slidably connected to the outside of the bracket (37). A connecting column (39) is fixedly connected to the outside of the connecting shell (38). A handle (310) is fixedly connected to the outside of the connecting shell (38).

2. The construction escape safety structure according to claim 1, characterized in that: The buffer mechanism (6) includes a bottom shell (61), the bottom outer side of which is fixedly connected to the top of the foundation (1), an outer plate (62) is slidably connected to the top inner side of the bottom shell (61), a plurality of limiting rods (63) are fixedly connected to the top inner side of the bottom shell (61), and a contraction spring (64) is sleeved inside each of the limiting rods (63). A buffer layer (65) is fixedly connected to the top of the outer plate (62), and an escape rod (66) is fixedly connected to the top of the bottom shell (61).

3. The construction escape safety structure according to claim 2, characterized in that: The top outer side of the escape rod (66) is bolted to a fastener (67), and the fastener (67) is externally fixedly connected to a support (68).

4. The construction escape safety structure according to claim 1, characterized in that: The limiting component (4) includes a protective net (41), the bottom of which is fixedly connected to the top of the bracket (32), and a top cover (42) is fixedly connected to the top of the protective net (41).

5. The construction escape safety structure according to claim 1, characterized in that: The blocking mechanism (5) includes a fence (51), the bottom of which is fixedly connected to the outside of the infrastructure (2), a stop bar (52) is slidably connected inside the fence (51), and a connecting block (53) is fixedly connected to the outside of the stop bar (52).

6. The construction escape safety structure according to claim 5, characterized in that: The fence (51) is slidably connected to a second stop bar (54) inside, and the second stop bar (54) is rotatably connected to a buckle (55) outside.

7. The construction escape safety structure according to claim 6, characterized in that: The inside of the card plate (34) is engaged with the outside of the connecting post (39), the outside of the second stop bar (54) is supported by the outside of the connecting block (53), and the outside of the buckle (55) is engaged with the outside of the first stop bar (52).

8. The construction escape safety structure according to claim 3, characterized in that: The outer plate (62) is internally slidably connected to the outside of the escape rod (66), the top of the retraction spring (64) is supported on the bottom inner side of the outer plate (62), and the outside of the support member (68) is bolted to the top outer side of the infrastructure (2).

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