Edge work protection device

Abstract

This utility model belongs to the field of underground construction technology and discloses a protective device for working near an edge, including a first clamping component, a second clamping component, and a fastening component. The first clamping component includes a first steel plate and a hanging plate. The first steel plate is attached to the inner side of the locking ring beam, and the hanging plate is installed on one side of the first steel plate. The safety belt is hung on the hanging plate in an adjustable position and locks the worker. The second clamping component includes a second steel plate. The first steel plate and the second steel plate are arranged opposite each other, and the second steel plate is located on the outer side of the locking ring beam. The fastening component includes a connecting screw and two abutting screws. The connecting screw is screwed to the second steel plate and connected to the first steel plate. The two abutting screws are screwed to the second steel plate and abut against the outer side of the locking ring beam. Tightening the abutting screws to abut against the outer side of the locking ring beam and tightening the connecting screw to adjust the distance between the first steel plate and the second steel plate to achieve clamping of the locking ring beam, thereby fixing the safety belt in an adjustable position to the locking ring beam.

Description

Technical Field

[0001] This utility model relates to the field of underground construction technology, and in particular to a protective device for working near edges. Background Technology

[0002] A lock-type ring beam is a reinforced concrete structure used in construction, typically in subway shafts or other underground engineering excavations. Its main function is to enhance the overall rigidity and stability of the structure, ensuring the safety and reliability of construction. The lock-type ring beam is a closed ring beam surrounding the top of the shaft, composed of a pre-arranged steel reinforcement skeleton and cast-in-place concrete. It possesses high strength and durability. Through its continuous closed form, it protects the shaft opening, preventing surface water from flowing into the shaft and the collapse of the surrounding soil. It enhances the overall rigidity of the entire structure and effectively disperses the pressure of the surrounding soil over a larger area, helping to resist the effects of uneven foundation settlement.

[0003] When working on traditional lock-type ring beams, safety belt hooks or lifeline hooks are usually embedded in the concrete to hang safety belts. However, this restricts the movement space of workers. Lengthening the safety rope of the safety belt does not provide adequate protection. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for working near the edge, which can be stably clamped to the locking ring beam and provide an adjustable connection point for the safety belt.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A safety device for working near an edge, clamped to a locking ring beam, for attaching a safety belt, comprising:

[0007] A first clamping assembly, comprising a first steel plate and a hanging plate, wherein the first steel plate is attached to the inner side of the locking ring beam, the hanging plate is installed on one side of the first steel plate, the safety belt is adjustablely hung on the hanging plate, and the safety belt is configured to lock the worker.

[0008] The second clamping assembly includes a second steel plate, with the first steel plate and the second steel plate disposed opposite each other, and the second steel plate located outside the locking ring beam;

[0009] A fastening assembly includes a connecting screw and two clamping screws. The connecting screw is screwed to the second steel plate and connected to the first steel plate. The two clamping screws are screwed to the second steel plate and abut against the outer side of the locking ring beam. The clamping screws are screwed to abut against the outer side of the locking ring beam, and the connecting screw is screwed to adjust the distance between the first steel plate and the second steel plate.

[0010] Preferably, a handwheel is installed at the end of the connecting screw and the two clamping screws away from the second steel plate, and the handwheel is rotated to tighten the connecting screw and the clamping screw respectively.

[0011] Preferably, the edge protection device further includes a first connecting structure, which is fixed to the top of the first steel plate and higher than the locking ring beam. The connecting screw is screwed to the second steel plate and connected to the first connecting structure.

[0012] Preferably, the first connecting structure includes a first threaded rod, a first fixing plate, and two opposing first connecting plates. The first fixing plate is fixed to the top of the first steel plate, and both first connecting plates are fixed to the first fixing plate and extend away from the first steel plate. One of the first connecting plates is attached to the top of the lock ring beam. The first threaded rod is sequentially screwed to the two first connecting plates and abuts against the top of the lock ring beam. The first threaded rod has a first threaded hole perpendicular to its axial direction, and the connecting screw is screwed into the first threaded hole.

[0013] Preferably, the edge protection device further includes two second connecting structures, which are spaced apart along the width direction of the second steel plate. Each second connecting structure includes a second threaded rod, a second fixing plate, and two opposing second connecting plates. The second fixing plate is attached to the outer side of the locking ring beam. One side of each of the two second connecting plates is fixed to the second fixing plate, and the other side of each of the two second connecting plates is fixed to the second steel plate. The second threaded rod is sequentially screwed to the two second connecting plates, and the second threaded rod has a second threaded hole perpendicular to its axial direction. The tightening screw is screwed into the second threaded hole.

[0014] Preferably, a connecting nut is fixed to the top of the second steel plate, the axis of the connecting nut coincides with the centerline of the second steel plate in the height direction, and the connecting screw is screwed to the connecting nut.

[0015] Preferably, two reinforcing plates are fixed to the top of the second steel plate, the connecting nut is sandwiched between the two reinforcing plates, and the reinforcing plates are connected to the connecting nut.

[0016] Preferably, two screw holes are provided at intervals along the width direction in the lower region of the second steel plate, and the distance between the center of the two screw holes and the centerline in the height direction of the second steel plate is equal, and the two clamping screws are respectively screwed into the two screw holes.

[0017] Preferably, the hanging plate is fixed to the side of the first steel plate away from the second steel plate along the width direction of the first steel plate, and the hanging plate is provided with a hanging groove through its thickness direction, the hanging groove being provided along the width direction of the first steel plate.

[0018] Preferably, the side of the hanging plate away from the first steel plate is arc-shaped, and the side of the hanging groove away from the first steel plate has an arc-shaped groove wall.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a protective device for working near an edge, including a first clamping assembly, a second clamping assembly, and a fastening assembly. The first clamping assembly includes a first steel plate and a hanging plate. The first steel plate is attached to the inner side of the locking ring beam, and the hanging plate is installed on one side of the first steel plate. The safety belt is adjustablely hung on the hanging plate, and the safety belt locks the worker. The second clamping assembly includes a second steel plate. The first steel plate and the second steel plate are arranged opposite each other, and the second steel plate is located on the outer side of the locking ring beam. The fastening assembly includes a connecting screw and two abutting screws. The connecting screw is screwed to the second steel plate and connected to the first steel plate. The two abutting screws are screwed to the second steel plate and abut against the outer side of the locking ring beam. Tightening the abutting screws tightens them against the outer side of the locking ring beam, and tightening the connecting screw adjusts the distance between the first steel plate and the second steel plate, thereby clamping the locking ring beam and adjusting the position of the safety belt to the locking ring beam. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a protective device for working near an edge provided in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the hanging plate of a protective device for working near an edge provided in an embodiment of this utility model;

[0023] Figure 3 This is a side view of a protective device for working near an edge provided in an embodiment of this utility model;

[0024] Figure 4 This is a partial structural schematic diagram of a protective device for working near an edge provided in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the second connection structure of an edge protection device provided in an embodiment of this utility model.

[0026] In the picture:

[0027] 10. Locking ring beam; 11. First steel plate; 12. Hanging plate; 121. Hanging groove; 21. Second steel plate; 31. Connecting screw; 32. Tightening screw; 4. Handwheel; 5. First connecting structure; 51. First threaded rod; 52. First fixing plate; 53. First connecting plate; 6. Connecting nut; 7. Reinforcing plate; 8. Second connecting structure; 81. Second threaded rod; 82. Second fixing plate; 83. Second connecting plate. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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" and "second" are only used for distinction in description and have no special meaning.

[0032] This embodiment provides a protective device for working near edges, which can be clamped to the locking ring beam. While the worker is protected by the safety belt, the worker's movement space is not restricted because the position of the safety belt is adjustable, thus avoiding blind spots in the work.

[0033] Please see Figures 1 to 5 The edge protection device provided in this embodiment includes a first clamping component, a second clamping component, and a fastening component. The safety belt is adjustablely hung on the first clamping component. The first clamping component and the second clamping component are located on the inner and outer sides of the locking ring beam 10, respectively. The distance between the first clamping component and the second clamping component is adjusted by the fastening component to clamp the locking ring beam 10, thereby adjusting and fixing the safety belt to the locking ring beam 10.

[0034] Please see Figure 1 The first clamping assembly includes a first steel plate 11 and a hanging plate 12. The first steel plate 11 is attached to the inner side of the locking ring beam 10, and the hanging plate 12 is installed on one side of the first steel plate 11. The safety belt is adjustablely hung on the hanging plate 12 and is used to lock the worker. In this embodiment, the hanging plate 12 is located inside the locking ring beam 10, thus eliminating the need to lengthen the safety belt and enabling the worker to work.

[0035] For example, please refer to Figure 2 The hanging plate 12 is fixed to one side of the first steel plate 11 along the width direction. The hanging plate 12 has a hanging groove 121 through it along the thickness direction. The hanging groove 121 is set along the width direction of the first steel plate 11. The safety belt passes through the hanging groove 121 and is hung on the hanging plate 12. The position can be adjusted along the width direction of the first steel plate 11, thereby providing sufficient movement space for the workers and avoiding blind spots in the work.

[0036] Preferably, the side of the hanging plate 12 away from the first steel plate 11 is arc-shaped, and the side of the hanging groove 121 away from the first steel plate 11 is also arc-shaped, so as to avoid the groove wall of the hanging groove 121 scraping against the outer wall of the hanging plate 12 and damaging the safety belt, thereby improving the safety of operation.

[0037] Optionally, the first steel plate 11 has a height of 200mm, a width of 200-300mm, and a wall thickness of 10mm, while the hanging plate 12 has a height of 50mm, a width of 150mm, and a wall thickness of 10mm. The hanging plate 12 is made of steel plate. For example, the hanging plate 12 is welded to the bottom of the first steel plate 11.

[0038] Please see Figure 1The second clamping assembly includes a second steel plate 21. The first steel plate 11 and the second steel plate 21 are arranged opposite to each other, and the second steel plate 21 is located on the outside of the lock ring beam 10. The first steel plate 11 and the second steel plate 21 are located on the inside and outside of the lock ring beam 10, respectively. The clamping of the lock ring beam 10 is achieved by adjusting the distance between the first steel plate 11 and the second steel plate 21 through the fastening assembly.

[0039] Optionally, the second steel plate 21 has a height of 200mm, a width of 200-300mm, and a wall thickness of 10mm.

[0040] Please see Figure 1 The fastening assembly includes a connecting screw 31 and two clamping screws 32. The connecting screw 31 is screwed to the second steel plate 21 and can be connected to the first steel plate 11. The two clamping screws 32 are screwed to the second steel plate 21 and abut against the outer side of the locking ring beam 10. By screwing the two clamping screws 32, the two clamping screws 32 are pressed against the outer side of the locking ring beam 10. Furthermore, by screwing the connecting screw 31, the second steel plate 21 is controlled to move closer to or further away from the first steel plate 11, thereby adjusting the distance between the first steel plate 11 and the second steel plate 21 so that the first steel plate 11 and the second steel plate 21 can be clamped in the locking ring beam 10. Then, the safety belt is hung on the hanging plate 12, and the worker locks himself in the safety belt before starting work. During this process, the first steel plate 11 and the second steel plate 21 are stably clamped in the locking ring beam 10, providing safety protection for the worker.

[0041] Furthermore, handwheels 4 are installed at the ends of the connecting screw 31 and the two clamping screws 32 away from the second steel plate 21. Rotating the handwheels 4 respectively enables the connecting screw 31 and the two clamping screws 32 to be tightened. The installation of handwheels 4 facilitates the application of force, and the handwheels 4 have a locking effect, which can effectively lock after force is applied.

[0042] Please see Figure 1 The edge protection device provided in this embodiment also includes a first connecting structure 5, which is used to connect the connecting screw 31 and the first steel plate 11, and can also stabilize the first steel plate 11.

[0043] The first connecting structure 5 is fixed to the top of the first steel plate 11 and is higher than the locking ring beam 10. The connecting screw 31 is connected to the first connecting structure 5 after being screwed to the second steel plate 21, thereby realizing the connection between the connecting screw 31 and the first steel plate 11.

[0044] Specifically, please refer to Figure 1 and Figure 4The first connecting structure 5 includes a first threaded rod 51, a first fixing plate 52, and two opposing first connecting plates 53. The first fixing plate 52 is fixed to the top of the first steel plate 11, and both first connecting plates 53 are fixed to the first fixing plate 52 and extend away from the first steel plate 11. Further, one of the first connecting plates 53 is attached to the top of the lock ring beam 10. After the first threaded rod 51 is screwed onto the two first connecting plates 53 in sequence, the first threaded rod 51 abuts against the top of the lock ring beam 10, and the first threaded rod 51 has a first threaded hole perpendicular to its axial direction. The connecting screw 31 is screwed into the first threaded hole.

[0045] Preferably, the first fixing plate 52 is welded to the first steel plate 11, and the first connecting plate 53 is welded to the first fixing plate 52 to ensure the overall structural strength.

[0046] With the above configuration, on the one hand, the first threaded rod 51 is screwed into two first connecting plates 53 in sequence, and the connecting screw 31 is screwed into the first threaded hole, thereby realizing the connection between the connecting screw 31 and the first steel plate 11. On the other hand, since the first threaded rod 51 is pressed against the top of the lock ring beam 10, and one of the first connecting plates 53 is attached to the top of the lock ring beam 10, it plays a stabilizing role for the first steel plate 11.

[0047] Preferably, both the first fixing plate 52 and the first connecting plate 53 are made of steel plate. More preferably, the first connecting plate 53 has a length of 150-200mm, a width of 30-50mm, and a wall thickness of 10mm.

[0048] To improve the connection stability between the connecting screw 31 and the second steel plate 21, please refer to the example below. Figure 1 and Figure 3 A connecting nut 6 is fixed to the top of the second steel plate 21, and a connecting screw 31 is screwed to the connecting nut 6. When force is applied to the handwheel 4 at the end of the connecting screw 31, the connecting nut 6 causes the second steel plate 21 to move closer to or away from the first steel plate 11. Preferably, the axis of the connecting nut 6 coincides with the centerline of the height direction of the second steel plate 21 to ensure that the second steel plate 21 is subjected to balanced force.

[0049] More preferably, the connecting nut 6 is welded to the top of the second steel plate 21 to ensure sufficient connection strength.

[0050] Further, please refer to Figure 3Two reinforcing plates 7 are fixed to the top of the second steel plate 21, and a connecting nut 6 is sandwiched between the two reinforcing plates 7. Further, the reinforcing plates 7 are welded to the connecting nut 6, thereby improving the stability of the connecting nut 6. Preferably, the reinforcing plate 7 is triangular, with one side welded to the top of the second steel plate 21 and the other side tightly against the outer wall of the connecting nut 6, thus increasing the contact area between the reinforcing plate 7 and the connecting nut 6. The reinforcing plate 7 is welded to the connecting nut 6 to improve the connection strength.

[0051] Preferably, the reinforcing plate 7 is made of steel plate.

[0052] Furthermore, please refer to Figure 3 Two screw holes are spaced apart along the width of the lower region of the second steel plate 21. The distance between the center of the two screw holes and the centerline of the second steel plate 21 in the height direction is equal. Two clamping screws 32 are screwed into the two screw holes respectively. Preferably, the distance between the two screw holes is 10-110mm.

[0053] With the above arrangement, the connecting screw 31 and the two clamping screws 32 are arranged in an isosceles triangle, resulting in a stable mechanical structure.

[0054] Please see Figure 1 The edge protection device provided in this embodiment also includes two second connecting structures 8, which indirectly expand the force application area of ​​the clamping screw 32 on the locking ring beam 10, thereby optimizing the clamping effect.

[0055] Specifically, two second connecting structures 8 are spaced apart along the width direction of the second steel plate 21, and each of the two second connecting structures 8 corresponds one-to-one with abutting screws 32. Please refer to [link / reference]. Figure 1 and Figure 5 The second connecting structure 8 includes a second threaded rod 81, a second fixing plate 82, and two opposing second connecting plates 83. The second fixing plate 82 is attached to the outside of the lock ring beam 10. One side of each of the two second connecting plates 83 is fixed to the second fixing plate 82, and the other side of each of the two second connecting plates 83 is fixed to the second steel plate 21. The second threaded rod 81 is sequentially threaded to the two second connecting plates 83. The second threaded rod 81 has a second threaded hole perpendicular to its axial direction. The tightening screw 32 is threaded into the corresponding screw hole and then into the second threaded hole.

[0056] With the above settings, tightening the clamping screw 32 applies force to its corresponding second threaded rod 81, which in turn drives the second fixing plate 82 to apply force to the outer side of the lock ring beam 10.

[0057] Preferably, both the second fixing plate 82 and the second connecting plate 83 are made of steel plate, and the second connecting plate 83 is welded to the second fixing plate 82 and the second connecting plate 83 is welded to the second steel plate 21.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A protective device for working near an edge, clamped to a locking ring beam (10), used for attaching a safety belt, characterized in that, include: The first clamping assembly includes a first steel plate (11) and a hanging plate (12). The first steel plate (11) is attached to the inner side of the locking ring beam (10). The hanging plate (12) is installed on one side of the first steel plate (11). The safety belt is adjustablely hung on the hanging plate (12) and the safety belt is configured to lock the worker. The second clamping assembly includes a second steel plate (21), the first steel plate (11) and the second steel plate (21) are disposed opposite each other, and the second steel plate (21) is located outside the locking ring beam (10); The fastening assembly includes a connecting screw (31) and two clamping screws (32). The connecting screw (31) is screwed to the second steel plate (21) and connected to the first steel plate (11). The two clamping screws (32) are screwed to the second steel plate (21) and abut against the outer side of the locking ring beam (10). The clamping screws (32) are screwed to abut against the outer side of the locking ring beam (10), and the connecting screw (31) is screwed to adjust the distance between the first steel plate (11) and the second steel plate (21).

2. The edge protection device according to claim 1, characterized in that, Handwheels (4) are installed at the ends of the connecting screw (31) and the two clamping screws (32) away from the second steel plate (21). The handwheels (4) are rotated to screw the connecting screw (31) and the clamping screws (32) respectively.

3. The edge protection device according to claim 1, characterized in that, The edge protection device also includes a first connecting structure (5), which is fixed to the top of the first steel plate (11) and higher than the locking ring beam (10). The connecting screw (31) is screwed to the second steel plate (21) and connected to the first connecting structure (5).

4. The edge protection device according to claim 3, characterized in that, The first connecting structure (5) includes a first threaded rod (51), a first fixing plate (52), and two opposing first connecting plates (53). The first fixing plate (52) is fixed to the top of the first steel plate (11). The two first connecting plates (53) are both fixed to the first fixing plate (52) and extend in a direction away from the first steel plate (11). One of the first connecting plates (53) is attached to the top of the lock ring beam (10). The first threaded rod (51) is sequentially screwed to the two first connecting plates (53) and abuts against the top of the lock ring beam (10). The first threaded rod (51) has a first threaded hole perpendicular to its axial direction. The connecting screw (31) is screwed into the first threaded hole.

5. A protective device for working near edges according to any one of claims 1-4, characterized in that, The edge protection device also includes two second connecting structures (8). The two second connecting structures (8) are spaced apart along the width direction of the second steel plate (21). The second connecting structure (8) includes a second threaded rod (81), a second fixing plate (82), and two opposing second connecting plates (83). The second fixing plate (82) is attached to the outside of the locking ring beam (10). One side of each of the two second connecting plates (83) is fixed to the second fixing plate (82), and the other side of each of the two second connecting plates (83) is fixed to the second steel plate (21). The second threaded rod (81) is sequentially screwed to the two second connecting plates (83), and the second threaded rod (81) is provided with a second threaded hole perpendicular to its axial direction. The tightening screw (32) is screwed into the second threaded hole.

6. A protective device for working near edges according to any one of claims 1-4, characterized in that, A connecting nut (6) is fixed to the top of the second steel plate (21). The axis of the connecting nut (6) coincides with the center line of the height direction of the second steel plate (21). The connecting screw (31) is screwed to the connecting nut (6).

7. A protective device for working near edges according to claim 6, characterized in that, Two reinforcing plates (7) are fixed to the top of the second steel plate (21), and the connecting nut (6) is sandwiched between the two reinforcing plates (7), and the reinforcing plate (7) is connected to the connecting nut (6).

8. A protective device for working near edges according to any one of claims 1-4, characterized in that, Two screw holes are spaced apart along the width direction in the lower region of the second steel plate (21). The distance between the center of the two screw holes and the centerline in the height direction of the second steel plate (21) is equal. The two clamping screws (32) are respectively screwed into the two screw holes.

9. A protective device for working near edges according to any one of claims 1-4, characterized in that, The hanging plate (12) is fixed along the width direction of the first steel plate (11) on the side of the first steel plate (11) away from the second steel plate (21), and the hanging plate (12) is provided with a hanging groove (121) through it along its thickness direction, and the hanging groove (121) is provided along the width direction of the first steel plate (11).

10. A protective device for working near edges according to claim 9, characterized in that, The side of the hanging plate (12) away from the first steel plate (11) is arc-shaped, and the side of the hanging groove (121) away from the first steel plate (11) is arc-shaped.

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