Rotatable welding-free bidirectional safety net hook mounting device on steel beam

Abstract

The utility model provides a rotatable welding-free bidirectional safety net hook mounting device on a steel beam, which comprises a steel beam main body, a first hanging rod is arranged at the upper part of the steel beam main body, and a sliding sleeve is welded on one side of the first hanging rod; a second hanging rod is slidably connected into the sliding sleeve. The positions of the second hanging rod and the first hanging rod are aligned, and the outer end part of the first hanging rod is symmetrically and fixedly connected with two first hook arms; the outer end part of the second hanging rod is fixedly connected with two second hook arms; and the orientations of the two second hook arms are respectively opposite to the orientations of the two first hook arms. The second hook arm is pulled to enable the second hanging rod to extend in the horizontal direction, the first hook arm and the second hook arm are buckled on the flange of the steel beam body, and the second hook arm is reversely pushed to complete installation of the hook. The problems that in the prior art, a welding type hook is directly welded to a main component and cannot be recycled, and a welding-free type hook can only bear force on one side and has the risk of loosening and unhooking are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a rotatable welding-free bidirectional safety net hook installation device on a steel beam. Background Art

[0002] During the construction of steel structures, in order to prevent workers and objects from falling from heights, it is usually necessary to install safety nets on steel beams. In order to facilitate the hanging of safety nets on steel beams, workers usually use hook installation devices. There are usually two common hook installation methods on the market. One is the welding type, which directly welds the hook to the lower flange of the steel beam, and the other is the welding-free type, which buckles the hook to the flange of the steel beam through a hook.

[0003] The utility model with application number CN202320151364.4 discloses a hook device and a safety net structure, which specifically includes a U-shaped card, a first screw and a hook. The first card plate of the U-shaped card is connected to the upper surface of the steel beam, and the hook is fixed to the second card plate of the U-shaped card. The first screw passes through the second card plate and is fixed to the lower surface of the steel beam. When in use, the U-shaped card is arranged on the steel beam, and its first card plate is connected to the upper surface of the steel beam. The first screw passes through its second card plate to support the lower surface of the steel beam, so that the U-shaped card and the steel beam are fixed. The operator only needs to hang the safety net on the hook. Only by making the first screw no longer support the lower surface of the steel beam and removing the U-shaped card, the disassembly of the hook device can be completed. Therefore, the utility model can protect the steel beam, and there is no need to cut off the hook and grind the steel beam, which can effectively improve the construction efficiency. At the same time, the hook device can be reused many times, saving the construction cost of the project.

[0004] However, the current traditional hook installation method is to weld the hook directly to the main component, which cannot be used in a cyclical manner and cannot be removed after use, affecting the overall appearance. Although the welding-free hook can be easily removed, the hook is buckled on the flange of the steel beam through a hook and can usually only bear force on one side, and there is a risk of loosening and unhooking. At the same time, the hook may swing left and right depending on the stress state, affecting the overall stress of the safety net, which is inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a rotatable welding-free bidirectional safety net hook installation device on a steel beam, which can solve the above-mentioned problems of the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a rotatable welding-free bidirectional safety net hook installation device on a steel beam, comprising: a steel beam main body, a first hanging rod is arranged on the upper part of the steel beam main body, and is characterized in that: a sliding sleeve is welded on one side of the first hanging rod; a second hanging rod is slidably connected in the sliding sleeve; the second hanging rod is aligned with the first hanging rod, and the outer end of the first hanging rod is symmetrically fixedly connected with two first hook arms; the outer end of the second hanging rod is fixedly connected with two second hook arms; the directions of the two second hook arms are respectively opposite to the directions of the two first hook arms, a first nut is welded in the center of the outside of the first hanging rod, a second nut is welded in the center of the outside of the sliding sleeve, and a first fastening screw and a second fastening screw are respectively arranged in the first nut and the second nut.

[0007] In a preferred embodiment, the second nut corresponds to the first nut in position, and the lower ends of the first fastening screw and the second fastening screw are respectively in contact with the steel beam body.

[0008] In a preferred embodiment, the two first hook arms are both hook-shaped structures, and the hook parts of the two first hook arms are facing opposite directions; the hook part of the first hook arm set at the left end of the first hanging rod faces downward, and the hook part of the first hook arm set at the right end of the first hanging rod faces upward.

[0009] In a preferred embodiment, the two second hook arms are both hook-shaped structures, and the hook parts of the two second hook arms are oriented in opposite directions. The hook part of the second hook arm set at the left end of the second hanging rod faces upward, and the hook part of the second hook arm set at the right end of the second hanging rod faces downward.

[0010] In a preferred embodiment, the hook-shaped structure is L-shaped or arc-shaped.

[0011] In a preferred embodiment, the sliding sleeve is an annular columnar structure, and the diameter of the sliding sleeve is greater than the diameter of the second hanging rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a first hanging rod, a second hanging rod, a sliding sleeve, a first nut, a second nut, a first fastening screw and a second fastening screw, two first hook arms are provided on the first hanging rod, two second hook arms are provided on the second hanging rod, and the directions of the two second hook arms are opposite to the directions of the two first hook arms respectively, and the second hanging rod is slid in the sliding sleeve by pulling the second hook arm, so that the second hanging rod is extended in the horizontal direction, and then the first hook arm and the second hook arm are buckled on the flange of the steel beam body, and the second hook arm is pushed in the opposite direction, so that the hook can be stressed at both ends, and the hook is prevented from being loosened and unhooked during use, and the stability of the hook is also improved, and the hook is prevented from shaking left and right with the stress state, which effectively improves the installation effect of the installation net and improves the practicality of the hook. Secondly, the utility model does not need to weld the hook, and only one staff member can quickly remove the hook, which is more convenient to disassemble and assemble, and improves the construction efficiency.

[0014] After the hook is installed on the steel beam, the staff can screw the first fastening screw and the second fastening screw into the first nut and the second nut respectively. As the first fastening screw and the second fastening screw are turned, the second hook arm and the first hook arm are pressed against the lower surface of the upper flange, further improving the fixing effect of the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic diagram of the axial structure of the utility model of a rotatable welding-free bidirectional safety net hook installation device on a steel beam;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the first hanging rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after the second hanging rod slides;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure after the utility model is installed on the steel beam body;

[0021] Figure 5 It is a structural schematic diagram of a first hook arm and a second hook arm of an embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of a first hook arm and a second hook arm of another embodiment of the utility model;

[0023] Figure 7 It is a structural schematic diagram of a first hook arm and a second hook arm of another embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Steel beam body; 101. First hanging rod; 102. First hook arm; 103. First nut; 104. Sliding sleeve; 105. Second hanging rod; 106. Second hook arm; 107. Second nut; 108. First fastening screw; 109. Safety net; 110. Second fastening screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, scheme and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. Unless otherwise specified, the terms used in this article have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0027] Example 1

[0028] The steel beam of this embodiment can be rotated without welding two-way safety net hook installation device, such as Figures 1 to 5 As shown, it comprises: a steel beam body 1, a first hanging rod 101 is arranged on the upper part of the steel beam body 1, a sliding sleeve 104 is welded to the rear part of the first hanging rod 101, a second hanging rod 105 is slidably connected inside the sliding sleeve 104, and the position of the second hanging rod 105 is aligned with the first hanging rod 101. Two first hook arms 102 are symmetrically fixedly connected to the outside of the first hanging rod 101, and two second hook arms 106 are fixedly connected to the outside of the second hanging rod 105, and the directions of the two second hook arms 106 are respectively opposite to the directions of the two first hook arms 102. A first nut 103 is welded in the center of the outside of the first hanging rod 101, and a second nut 107 is welded in the center of the outside of the sliding sleeve 104; the second nut 107 is aligned with the position of the first nut 103. A second fastening screw 110 is connected to the second nut 107 through an internal thread, and a first fastening screw 108 is connected to the first nut 103 through an internal thread. The first fastening screw 108 and the second fastening screw 110 are aligned.

[0029] Furthermore, the two first hook arms 102 are both L-shaped hook structures, and the hook parts of the two first hook arms 102 face in opposite directions. The hook part of the first hook arm 102 disposed at the left end of the first hanging rod 101 faces downward, and the hook part of the first hook arm 102 disposed at the right end of the first hanging rod 101 faces upward. The two second hook arms 106 are both L-shaped hook structures, and the hook parts of the two second hook arms 106 face in opposite directions, the hook part of the second hook arm 106 disposed at the left end of the second hanging rod 105 faces upward, and the hook part of the second hook arm 106 disposed at the right end of the second hanging rod 105 faces downward.

[0030] Furthermore, the sliding sleeve 104 is an annular columnar structure made of stainless steel, and the diameter of the sliding sleeve 104 is slightly larger than the diameter of the second hanging rod 105 .

[0031] Furthermore, the first fastening screw 108 and the second fastening screw 110 are both large hexagon head high-strength bolts.

[0032] The specific use of this embodiment is as follows: when hanging the safety net 109, the staff pulls the second hook arm 106 to make the second hanging rod 105 slide in the sliding sleeve 104, so that the second hanging rod 105 extends horizontally, so that the length of the first hook arm 102 and the second hook arm 106 is the same as the flange width of the steel beam body 1, and then the first hook arm 102 and the second hook arm 106 are buckled on the flange of the steel beam body 1, and then the second hook arm 106 is pushed in the opposite direction, so that the hooks at the lower parts of the first hook arm 102 and the second hook arm 106 are pressed against the side wall of the upper flange of the steel beam body 1. Since the diameter of the sliding sleeve 104 is slightly larger than the diameter of the second hanging rod 105, there is a certain gap between the sliding sleeve 104 and the second hanging rod 105, and the second hanging rod 105 can slide more smoothly. The first hook arm 102 is bent downward to buckle the first hanging rod 101 on the flange of the steel beam body 1, and the safety net 109 is hung through the first hook arm 102 bent upward, and the second hanging rod 105 is buckled on the flange of the steel beam body 1 through the second hook arm 106 bent downward, and the safety net 109 is hung through the second hook arm 106 bent upward. At the same time, since the second hook arm 106 bent downward and the first hook arm 102 are arranged on opposite sides, the second hook arm 106 and the first hook arm 102 can be buckled on the flange of the steel beam body 1 from both sides at the same time, thereby increasing the installation effect between the hook and the steel beam body 1.

[0033] After the hook is buckled on the steel beam body 1, the first fastening screw 108 and the second fastening screw 110 are tightened to make the hooks at the lower part of the first hook arm 102 and the second hook arm 106 press against the lower surface of the upper flange of the steel beam body 1. At this time, the staff can squat on the upper part of the steel beam or operate the frame equipment at the lower part of the steel beam to hang the safety net 109 on the first hook arm 102 and the second hook arm 106 to complete the installation of the safety net 109. After use, the staff only needs to reversely rotate the first fastening screw 108 and the second fastening screw 110, and then push the second hook arm 106 again to make the second hanging rod 105 slide in the sliding sleeve 104, so that the first hook arm 102 and the second hook arm 106 are detached from the steel beam body 1 and taken out.

[0034] Example 2

[0035] like Figure 6 As shown, the difference between this embodiment and embodiment 1 is that the two first hook arms 102 are both arc-shaped hook structures, the hook parts of the two first hook arms 102 face in opposite directions, and the arc parts of the two first hook arms 102 have the same size. The hook part of the first hook arm 102 set at the left end of the first hanging rod 101 faces downward, and the hook part of the first hook arm 102 set at the right end of the first hanging rod 101 faces upward. The two second hook arms 106 are both arc-shaped hook structures, the hook parts of the two second hook arms 106 face in opposite directions, and the arc parts of the two second hook arms 106 have the same size, the hook part of the second hook arm 106 set at the left end of the second hanging rod 105 faces upward, and the hook part of the second hook arm 106 set at the right end of the second hanging rod 105 faces downward.

[0036] Example 3

[0037] like Figure 7 As shown, the difference between this embodiment and embodiment 1 is that the two first hook arms 102 are both curved hook structures, and the hook parts of the two first hook arms 102 face in opposite directions. The hook part of the first hook arm 102 set at the left end of the first hanging rod 101 faces downward, and the hook part of the first hook arm 102 set at the right end of the first hanging rod 101 faces upward. The two second hook arms 106 are both L-shaped curved hook structures, and the hook parts of the two second hook arms 106 face in opposite directions. The hook part of the second hook arm 106 set at the left end of the second hanging rod 105 faces upward, and the hook part of the second hook arm 106 set at the right end of the second hanging rod 105 faces downward. The first hook arm 102 and the second hook arm 106 facing upward are 45° curved hooks.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotatable welding-free bidirectional safety net hook installation device on a steel beam, comprising: A steel beam body (1), wherein a first hanging rod (101) is arranged at the upper part of the steel beam body (1), characterized in that: a sliding sleeve (104) is welded on one side of the first hanging rod (101); a second hanging rod (105) is slidably connected inside the sliding sleeve (104); the second hanging rod (105) is aligned with the first hanging rod (101), and the outer end of the first hanging rod (101) is symmetrically fixedly connected to two first hook arms (102); the outer end of the second hanging rod (105) is fixedly connected to two second hook arms (106); the directions of the two second hook arms (106) are respectively opposite to the directions of the two first hook arms (102); a first nut (103) is welded in the center of the outside of the first hanging rod (101), and a second nut (107) is welded in the center of the outside of the sliding sleeve (104); and a first fastening screw (108) and a second fastening screw (110) are respectively arranged in the first nut (103) and the second nut (107).

2. The rotatable welding-free bidirectional safety net hook installation device on the steel beam as claimed in claim 1, characterized in that: The second nut (107) corresponds to the position of the first nut (103), and the lower ends of the first fastening screw (108) and the second fastening screw (110) are respectively in contact with the steel beam body (1).

3. The rotatable welding-free bidirectional safety net hook installation device on the steel beam as claimed in claim 1, characterized in that: The two first hook arms (102) are both hook-shaped structures, and the hook parts of the two first hook arms (102) face in opposite directions; the hook part of the first hook arm (102) arranged at the left end of the first hanging rod (101) faces downward, and the hook part of the first hook arm (102) arranged at the right end of the first hanging rod (101) faces upward.

4. The rotatable welding-free bidirectional safety net hook installation device on the steel beam as claimed in claim 3, characterized in that: The two second hook arms (106) are both hook-shaped structures, and the hook parts of the two second hook arms (106) are oriented in opposite directions. The hook part of the second hook arm (106) arranged at the left end of the second hanging rod (105) faces upward, and the hook part of the second hook arm (106) arranged at the right end of the second hanging rod (105) faces downward.

5. The rotatable welding-free bidirectional safety net hook installation device on the steel beam as claimed in claim 4, characterized in that: The hook-shaped structure is L-shaped or arc-shaped.

6. The rotatable welding-free bidirectional safety net hook installation device on the steel beam as claimed in claim 1, characterized in that: The sliding sleeve (104) is an annular columnar structure, and the diameter of the sliding sleeve (104) is greater than the diameter of the second hanging rod (105).

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