Safety net hanging device for steel structure and using method thereof

Abstract

The invention provides a safety net hanging device for a steel structure and a using method thereof.The safety net hanging device comprises two limiting plates arranged side by side, an adjusting screw rod is arranged between the two limiting plates in a penetrating mode, nuts are screwed to the positions, on the two sides of the limiting plates, of the adjusting screw rod, threaded holes are formed in the limiting plates, and the limiting plates are fixedly connected with the nuts. A puller bolt facing the position between the two limiting plates is screwed in the threaded hole, and a set distance is formed between the adjusting screw rod and the puller bolt. And hooks are arranged on the opposite side surfaces of the two limiting plates. The device is used for being installed on a steel beam of a building of a steel structure to hang a safety net, is suitable for steel beams of various types and can be repeatedly used.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction devices, and more particularly, to a safety net hanging device for a steel structure and a method of using the same. Background Art

[0002] Safety nets are widely used during the installation of steel structures. During the installation of various types of steel structures, such as large-span stadium steel structures, high-rise frame steel structures, and steel structure workshops, safety nets can be installed to intercept construction workers and falling objects during high-altitude construction, prevent objects from hitting them, protect the safety of construction workers, and reduce the risk of falls during steel structure construction. However, in order to ensure that the safety net is effectively connected to the steel structure, can withstand the impact force generated by falling objects, and effectively reduce the degree of injury, the connection between the safety net and the steel structure is often ensured by installing safety net hooks on the steel beams of the steel structure. The safety net hooks are generally connected to the steel beams by welding. After the steel structure is installed, the safety net hooks need to be cut off, and the welded safety net hooks cannot be reused. Summary of the Invention

[0003] In view of the above problems, the purpose of the present invention is to provide a safety net hanging device for steel structures and a method of using the same, which is used to be installed on the steel beams of steel structure buildings to hang safety nets. The device is suitable for various types of steel sections and can be reused.

[0004] The present invention provides a safety net hanging device for a steel structure, comprising two limit plates arranged side by side, an adjusting screw passing through the two limit plates, nuts screwed onto the adjusting screw positions on both sides of the limit plates, threaded holes provided on the limit plates, tightening bolts screwed into the threaded holes toward the position between the two limit plates, a set spacing between the adjusting screw and the tightening bolt; hooks are provided on the opposite sides of the two limit plates.

[0005] Among them, an optional solution is that the limiting plate is a rectangular steel plate, and a through hole is provided in the center of the first half of the rectangular steel plate along the length direction of the rectangular steel plate, and the threaded hole is provided in the center of the second half of the rectangular steel plate; the adjusting screw is passed through the through holes of the two rectangular steel plates.

[0006] Among them, an optional solution is that the hook is a bent hook of a steel rod, the hooks are respectively welded to the width edges of the rectangular steel plate, and the openings of the two hooks are arranged opposite to each other.

[0007] Among them, an optional solution is that the diameter of the adjusting screw is not less than 10 mm.

[0008] Among them, an optional solution is that the nut is a hexagonal nut.

[0009] Among them, an optional solution is that the tightening bolt is a hexagonal bolt with a diameter of not less than 10 mm.

[0010] Among them, an optional solution is that the set spacing is 10cm-20cm.

[0011] Another aspect of the present invention provides a method for using a safety net hanging device for a steel structure, wherein the safety net hanging device for a steel structure is evenly installed on each steel beam to be hung with the safety net, and if the steel beam is an H-shaped steel, the method comprises the following steps:

[0012] S1: According to the width of the wing plate of the H-shaped steel, adjust the distance between the two limit plates, wherein the distance is equal to the width of the wing plate, and pre-tighten the two limit plates using the nut;

[0013] S2: Clamp the two limit plates on both sides of the lower wing plate of the H-shaped steel, with the adjusting screw located below the wing plate, and place the two tightening bolts on the upper side of the wing plate;

[0014] S3: Tighten the nuts so that the two limit plates clamp the wing plates, and rotate the two tightening bolts respectively, so that the two tightening bolts tighten the two sides of the waist plate of the H-shaped steel respectively;

[0015] S4: Hang the safety net with each hook.

[0016] If the steel beam is a box-shaped steel beam, the following steps are included:

[0017] S1: According to the width of the box-shaped steel, adjust the distance between the two limit plates, wherein the distance is equal to the width of the box-shaped steel, and pre-tighten the two limit plates with the nuts;

[0018] S2: Clamp the two limit plates on both sides of the upper portion of the box-shaped steel, with the adjusting screw placed on the upper portion of the box-shaped steel, and the tightening bolt facing the side wall of the box-shaped steel;

[0019] S3: Tighten the nuts so that the two limiting plates clamp the box-shaped steel, and rotate the two tightening bolts respectively so that the two tightening bolts tighten the two sides of the box-shaped steel respectively;

[0020] S4: Hang the safety net with each hook.

[0021] If the steel beam is a round steel, the following steps are included:

[0022] S1: adjusting the distance between the two limit plates according to the diameter of the circular steel, wherein the distance is equal to the diameter of the circular steel, and pre-tightening the two limit plates with the nut;

[0023] S2: Clamp the two limit plates on both sides of the upper portion of the circular steel, and place the adjusting screw on the upper portion of the circular steel, with the tightening bolt facing the outer wall of the circular steel;

[0024] S3: Tighten the nuts so that the two limiting plates clamp the circular steel, and rotate the two tightening bolts respectively so that the two tightening bolts respectively press against the outer wall of the circular steel;

[0025] S4: Hang the safety net with each hook.

[0026] As can be seen from the above description, the present invention provides a safety net suspension device for steel structures and its method of use. The suspension device utilizes two stoppers fixed to a steel beam to provide hooks for suspending the safety net. The device can be removed after construction is complete. This avoids the prior art practice of welding hooks onto the steel beam and then cutting them off. This preserves the appearance of the steel beam, reduces on-site workload, allows for reuse, saves materials, and is applicable to steel beams of various structures.

[0027] To achieve the above and related ends, one or more aspects of the present invention include features that will be described in detail below and particularly pointed out in the claims. The following description and the accompanying drawings set forth certain exemplary aspects of the present invention in detail. However, these aspects are merely indicative of the various ways in which the principles of the present invention may be employed. Furthermore, the present invention is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By referring to the following description in conjunction with the accompanying drawings, and with a more complete understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the accompanying drawings:

[0029] Figure 1 This is a schematic structural diagram of a safety net suspension device for a steel structure according to Example 1 of the present invention;

[0030] Figure 2 This is a flow chart of a method for using a safety net hanging device for a steel structure according to Example 2 of the present invention;

[0031] Figure 3 This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 2 of the present invention;

[0032] Figure 4 This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 3 of the present invention;

[0033] Figure 5This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 4 of the present invention;

[0034] Among them, 1-limiting plate, 2-adjusting screw, 3-nut, 4-threaded hole, 5-tightening bolt, 6-hook, 7-through hole;

[0035] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0036] In the following description, for illustrative purposes, numerous specific details are set forth to provide a comprehensive understanding of one or more embodiments. However, it will be apparent that the embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form to facilitate description of one or more embodiments.

[0037] The present invention is susceptible to various modifications and embodiments, and specific embodiments are illustrated and described with reference to the accompanying drawings. However, the present invention is not limited to these specific embodiments and encompasses all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention, and should be understood to be encompassed thereby.

[0038] Ordinal terms such as first and second may be used to describe various components, but the components are not limited to these terms. These terms are used only to distinguish one component from another. For example, the second component may be named the first component, and similarly, the first component may be named the second component without departing from the scope of the claims of the present invention. Terms and / or terms include a combination of multiple related items or a specific item from multiple related items.

[0039] It should be understood that when a component is referred to as being "connected" or "in contact with" another component, this includes not only being directly connected or in contact with the other component, but also being understood to include being interposed with other components. Conversely, when a component is referred to as being "directly connected" or "directly in contact with" another component, it should be understood that there are no interposed components.

[0040] In the description of the embodiments, when a component is described as being formed "on or under" another component, "on or under" includes both components being in direct contact with each other or at least one other component being disposed between the two components. Furthermore, when "on" or "under" is used as a reference, it refers not only to the upper direction but also to the lower direction.

[0041] The terms used in this application are only used to illustrate specific embodiments and are not intended to limit the present invention. Unless the context clearly dictates otherwise, expressions in the singular include expressions in the plural. In this application, it should be understood that terms such as "including" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, parts, or combinations thereof described in the specification, and do not preclude the presence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts, or combinations thereof.

[0042] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meanings as those generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted as having the same meanings as those in the context of the relevant technology and should not be interpreted as having ideal or overly formal meanings unless they are clearly defined in this application.

[0043] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] Figure 1 This is a schematic structural diagram of a safety net suspension device for a steel structure according to Example 1 of the present invention;

[0046] like Figure 1 As shown, the safety net hanging device for steel structure proposed in this embodiment can be evenly installed on the steel beams of steel structure buildings to hang safety nets, and can also be used to be installed on other steel sections to hang objects.

[0047] This safety net suspension device for steel structures includes two side-by-side, facing limit plates 1. An adjustment screw 2 is threaded between the two limit plates 1, with nuts 3 screwed into the adjustment screws 2 on either side of the limit plates 1. The limit plates 1 have threaded holes 4, into which tightening bolts 5 are screwed, facing between the two limit plates 1. A predetermined spacing exists between the adjustment screws 2 and the tightening bolts 5. Hooks 6 are provided on the opposing sides of the two limit plates 1.

[0048] Adjust the spacing between the two limit plates 1 based on the structure and cross-sectional dimensions of the steel beam. The spacing between the two limit plates 1 should be sufficient to sandwich the steel beam. Use the adjusting screws 2 and nuts 3 to fix the spacing between the two limit plates 1, ensuring they are clamped firmly on both sides of the steel beam. Tighten the nuts 3 on both sides of the adjusting screws 2 to ensure a secure and stable positioning of the limit plates 1.

[0049] To further stabilize and balance the clamping of the limit plates 1, jacking bolts 5 are screwed onto the limit plates 1. After the two limit plates 1 are clamped onto the steel beam, the jacking bolts 5 on each limit plate 1 press against the steel beam on either side, further tightening the limit plates 1. When the two limit plates 1 are installed on the beam, the jacking bolts 5 and the adjusting screw 2 are horizontal and on the same vertical plane. The upper and lower positions of the jacking bolts 5 and the adjusting screw 2 are determined based on the structure of the beam.

[0050] The set distance between the adjusting screw rod 2 and the tightening bolt 5 can be made to adapt the adjusting screw rod 2 and the tightening bolt 5 to the structure of the steel beam, thereby stably fixing the two limit plates 1 .

[0051] The hook 6 provided on the outer side of the limiting plate 1 can be conveniently hooked to the mesh of the safety net.

[0052] In a specific embodiment of the present invention, in order to facilitate the installation of the limit plate 1, the limit plate 1 is a rectangular steel plate. Along the length direction of the rectangular steel plate, a through hole 7 is provided in the center of the first half of the rectangular steel plate, and a threaded hole 4 is provided in the center of the second half of the rectangular steel plate. The adjusting screw 2 is passed through the through holes 7 of the two rectangular steel plates.

[0053] The length of the rectangular steel plate can be determined according to the specific construction conditions. The adjusting screw 2 and the jacking bolt 5 are both arranged on the longitudinal midline of the rectangular steel plate. The spacing between the adjusting screw 2 and the jacking bolt 5 is such that the two limit plates 1 can be clamped on both sides of a steel beam of various structures. The spacing between the adjusting screw 2 and the jacking bolt 5 can be set according to the structure of commonly used steel beams, making the suspension device applicable to a variety of steel beams.

[0054] In a specific embodiment of the present invention, to facilitate the hanging of the safety net, hook 6 is a bent steel rod hook, which can be formed by bending a steel rod with a diameter of about 5 mm. The number of hooks 6 can be two, and hooks 6 are welded to the width edge of the rectangular steel plate, with the openings of the two hooks 6 arranged opposite each other. The two hooks 6 facilitate the selection of the appropriate hook 6 for hanging the mesh of the safety net.

[0055] In a specific embodiment of the present invention, for stable installation, the diameter of the adjusting screw 2 is no less than 10 mm, the nut 3 is a hexagonal nut, and the jacking bolt 5 is a hexagonal bolt with a diameter no less than 10 mm. The M10 adjusting screw 2 and jacking bolt 5 provide a stable connection between the two limit plates 1, and the hexagonal nuts can be easily tightened on both sides of the limit plates 1.

[0056] In a specific embodiment of the present invention, the set spacing is determined according to the structure of commonly used steel beams, and the set spacing can be 10cm-20cm. The spacing between the adjusting screw 2 and the tightening bolt 5 is between 10cm-20cm, which can meet the requirements of installing this suspension device on most steel beams in steel structure buildings.

[0057] Example 2

[0058] Figure 2 This is a flow chart of a method for using a safety net hanging device for a steel structure according to Example 2 of the present invention; Figure 3 This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 2 of the present invention;

[0059] like Figure 2 and 3 As shown, the method for using the safety net hanging device for a steel structure provided in this embodiment is used to install the safety net hanging device for a steel structure described in Example 1 on a steel beam to hang the safety net. The safety net hanging device for a steel structure described in Example 1 can be evenly installed on each steel beam to be hung with a safety net. If the steel beam is an H-shaped steel, the method includes the following steps:

[0060] S1: According to the width of the flange of the H-shaped steel, adjust the distance between the two limit plates 1. The distance can be equal to the width of the flange. Use nuts 3 to pre-tighten the two limit plates 1 to preliminarily fix the distance between the two limit plates 1.

[0061] When the steel beam is an H-shaped steel, with the two flanges horizontal and the waist plate vertical, the suspension device can be installed at the lower flange of the H-shaped steel, with the two limit plates 1 clamping the lower flange. To facilitate installation, first adjust the spacing between the two limit plates 1 to match the width of the lower flange. Then, turn the nuts 3 on the adjusting screws 2 toward the corresponding limit plates 1 to preliminarily position the spacing between the two limit plates 1 for easy placement on both sides of the lower flange.

[0062] S2: Clamp the two limit plates 1 on both sides of the lower wing plate of the H-shaped steel, with the adjusting screw 2 located below the wing plate and the tightening bolt 5 placed on the upper side of the wing plate.

[0063] In order to stabilize the two limit plates 1, two tightening bolts 5 are placed on the upper side of the lower wing plate, the two limit plates 1 are in contact with the edge of the lower wing plate, and the adjusting screw 2 is located below the lower wing plate. The two tightening bolts 5 can prevent the two limit plates 1 from falling off the lower wing plate.

[0064] S3: Tighten the nuts 3 so that the two limit plates 1 clamp the wing plates, and rotate the two tightening bolts 5 respectively. The two tightening bolts 5 are tightened on both sides of the waist plate of the H-shaped steel.

[0065] After arranging the limit plates 1, tighten the nuts 3 so that each limit plate 1 is stably attached to both sides of the lower wing plate, tighten the tightening bolts 5 so that the tightening bolts 5 are pressed against the sides of the waist plate and attached to the upper side of the lower wing plate to further fix the two limit plates 1.

[0066] S4: Hang the safety net with each hook 6.

[0067] After evenly installing the suspension device on each steel beam where the safety net needs to be hung according to the construction situation, the safety net is connected to the hook 6 below each limit plate 1 to horizontally unfold the hanging safety net.

[0068] Example 3

[0069] Figure 4 This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 3 of the present invention.

[0070] like Figure 4 As shown, the method for using the safety net hanging device for steel structures provided in this embodiment is used to install the safety net hanging device for steel structures described in Example 1 on steel beams to hang the safety net. The safety net hanging device for steel structures described in Example 1 is evenly installed on each steel beam to be hung with the safety net. If the steel beam is a box-shaped steel, the method includes the following steps:

[0071] S1: According to the width of the box steel, adjust the distance between the two limit plates 1. The distance can be the width of the box beam. Use nuts 3 to pre-tighten the two limit plates 1 to preliminarily position the distance between the two limit plates 1.

[0072] When the steel beam is a box-shaped steel beam, and the box-shaped steel beam is a rectangular box, the suspension device can be installed on the upper side of the box-shaped steel beam, with two limit plates 1 clamping the upper half of the steel box beam. To facilitate installation, the spacing between the two limit plates 1 can be adjusted to approximately equal the width of the steel box beam. The nuts 3 on the adjusting screws 2 are then rotated toward the corresponding limit plates 1 to preliminarily position the spacing between the two limit plates 1 for easy placement on both sides of the steel box beam.

[0073] S2: Clamp the two limit plates 1 on both sides of the upper part of the box-shaped steel, and place the adjusting screw 2 on the upper part of the box-shaped steel, with the tightening bolt 5 facing the side wall of the box-shaped steel.

[0074] To stabilize the two limit plates 1, the adjusting screw 2 is placed on the upper side of the box steel. The two limit plates 1 are close to the left and right sides of the box steel, and the two tightening bolts 5 are respectively facing the left and right sides of the box steel. The adjusting screw 2 can prevent the two limit plates 1 from falling off the box steel.

[0075] S3: Tighten the nuts 3 so that the two limit plates 1 clamp the box-shaped steel, and rotate the two tightening bolts 5 respectively so that the two tightening bolts 5 tighten the two sides of the box-shaped steel respectively;

[0076] After arranging the limit plates 1, tighten the nuts 3 so that each limit plate 1 is stably positioned on the left and right sides of the box steel, adjust the screw 2 to fit the upper side of the box steel, tighten the tightening bolts 5 so that the tightening bolts 5 are respectively tightened on the left and right sides of the box steel to further fix the two limit plates 1.

[0077] S4: Hang the safety net with each hook 6.

[0078] After evenly installing the suspension device on each steel beam where the safety net needs to be hung according to the construction situation, the safety net is connected to the hook 6 below each limit plate 1 to horizontally unfold the hanging safety net.

[0079] Example 4

[0080] Figure 5 This is a structural schematic diagram of a method for using a safety net suspension device for a steel structure according to Example 4 of the present invention.

[0081] like Figure 5 As shown, the method for using the safety net hanging device for a steel structure provided in this embodiment is used to install the safety net hanging device for a steel structure described in Example 1 on a steel beam to hang a safety net. The safety net hanging device for a steel structure described in Example 1 can be evenly installed on each steel beam to be hung with a safety net. If the steel beam is a round steel, the method includes the following steps:

[0082] S1: According to the diameter of the round steel, adjust the distance between the two limit plates 1. The distance can be equal to the diameter of the round steel. Use nuts 3 to pre-tighten the two limit plates 1.

[0083] When the steel beam is a round steel bar, and the round steel bar is cylindrical, the suspension device can be installed on the upper side of the round steel bar, with the two limit plates 1 clamping the upper half of the cylindrical shape. To facilitate installation, the spacing between the two limit plates 1 can be adjusted to approximately equal the diameter of the round steel bar. The nuts 3 on the adjusting screws 2 are then rotated toward the corresponding limit plates 1 to preliminarily position the spacing between the two limit plates 1 for easy placement on both sides of the steel box beam.

[0084] S2: Clamp the two limit plates 1 on both sides of the upper part of the circular steel, and place the adjusting screw 2 on the upper part of the circular steel, with the tightening bolts 5 facing the outer wall of the circular steel.

[0085] In order to stabilize the two limit plates 1, the adjusting screw 2 is placed on the upper side of the round steel, and the two limit plates 1 are vertically close to the two sides of the round steel, and the two tightening bolts 5 are respectively facing the left and right sides of the round steel. The adjusting screw 2 can prevent the two limit plates 1 from falling off the round steel.

[0086] S3: Tighten the nut 3 so that the two limiting plates 1 clamp the round steel, and rotate the two tightening bolts 5 respectively so that the two tightening bolts 5 are tightened on the outer wall of the round steel respectively.

[0087] After arranging the limit plates 1, tighten the nuts 3 so that each limit plate 1 is stably positioned on the left and right sides of the circular steel, adjust the screw 2 to fit the upper side of the circular steel, tighten the tightening bolts 5 so that the tightening bolts 5 are respectively tightened on the left and right sides of the circular steel to further fix the two limit plates 1.

[0088] S4: Hang the safety net with each hook 6.

[0089] After evenly installing the suspension device on each steel beam where the safety net needs to be hung according to the construction situation, the safety net is connected to the hook 6 below each limit plate 1 to horizontally unfold the hanging safety net.

[0090] The safety net suspension device for steel structures and its method of use according to the present invention have been described above by way of example with reference to the accompanying drawings. However, those skilled in the art will appreciate that various modifications may be made to the safety net suspension device for steel structures and its method of use as set forth above without departing from the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A safety net suspension device for a steel structure, characterized in that: The invention comprises two limit plates arranged side by side, an adjusting screw is passed through the two limit plates, nuts are screwed on the adjusting screw positions on both sides of the limit plates, threaded holes are provided on the limit plates, and a tightening bolt facing between the two limit plates is screwed into the threaded holes, and a set distance is set between the adjusting screw and the tightening bolt; Hooks are provided on the opposite sides of the two limiting plates.

2. The safety net suspension device for steel structure according to claim 1, characterized in that: The limiting plate is a rectangular steel plate, and a through hole is provided in the center of the first half of the rectangular steel plate along the length direction of the rectangular steel plate, and the threaded hole is provided in the center of the second half of the rectangular steel plate; The adjusting screw is passed through the through holes of the two rectangular steel plates.

3. The safety net suspension device for steel structure according to claim 2, characterized in that: The hooks are bent hooks made of steel rods, and the hooks are respectively welded to the width edges of the rectangular steel plates, and the openings of the two hooks are arranged opposite to each other.

4. The safety net suspension device for steel structure according to claim 1, characterized in that: The diameter of the adjusting screw is not less than 10 mm.

5. The safety net suspension device for steel structure according to claim 1, characterized in that: The nut is a hexagonal nut.

6. The safety net suspension device for steel structure according to claim 1, characterized in that: The tightening bolt is a hexagonal bolt with a diameter of not less than 10 mm.

7. The safety net suspension device for steel structure according to claim 1, characterized in that: The set spacing is 10cm-20cm.

8. A method for using a safety net suspension device for a steel structure, characterized in that: The safety net hanging device for steel structure according to any one of claims 1 to 7 is evenly installed on each steel beam to be hung with the safety net, if the steel beam is an H-shaped steel, comprising the following steps: S1: According to the width of the wing plate of the H-shaped steel, adjust the distance between the two limit plates, wherein the distance is equal to the width of the wing plate, and pre-tighten the two limit plates using the nut; S2: Clamp the two limit plates on both sides of the lower wing plate of the H-shaped steel, with the adjusting screw located below the wing plate, and place the two tightening bolts on the upper side of the wing plate; S3: Tighten the nuts so that the two limit plates clamp the wing plates, and rotate the two tightening bolts respectively, so that the two tightening bolts tighten the two sides of the waist plate of the H-shaped steel respectively; S4: Hang the safety net with each hook.

9. The method for using the safety net hanging device for steel structure according to claim 8, characterized in that: If the steel beam is a box-shaped steel beam, the following steps are included: S1: According to the width of the box-shaped steel, adjust the distance between the two limit plates, wherein the distance is equal to the width of the box-shaped steel, and pre-tighten the two limit plates with the nuts; S2: Clamp the two limit plates on both sides of the upper portion of the box-shaped steel, with the adjusting screw placed on the upper portion of the box-shaped steel, and the tightening bolt facing the side wall of the box-shaped steel; S3: Tighten the nuts so that the two limiting plates clamp the box-shaped steel, and rotate the two tightening bolts respectively so that the two tightening bolts tighten the two sides of the box-shaped steel respectively; S4: Hang the safety net with each hook.

10. The method for using the safety net suspension device for steel structure according to claim 8, characterized in that: If the steel beam is a round steel, the following steps are included: S1: adjusting the distance between the two limit plates according to the diameter of the circular steel, wherein the distance is equal to the diameter of the circular steel, and pre-tightening the two limit plates with the nut; S2: Clamp the two limit plates on both sides of the upper portion of the circular steel, and place the adjusting screw on the upper portion of the circular steel, with the tightening bolt facing the outer wall of the circular steel; S3: Tighten the nuts so that the two limiting plates clamp the circular steel, and rotate the two tightening bolts respectively so that the two tightening bolts respectively press against the outer wall of the circular steel; S4: Hang the safety net with each hook.

Images