High-altitude lifeline fixing device

Abstract

The utility model relates to the technical field of steel structure installation engineering, and provides a high-altitude lifeline fixing device which comprises a plurality of lifeline limiters, a plurality of stand columns, a plurality of U-shaped clamping plates and a steel beam, the lifeline limiters are fixed above the exteriors of the stand columns, the U-shaped clamping plates are clamped on a flange on one side of the top of the steel beam, and the steel beam is fixed on the stand columns. The stand column is fixed to the side away from the clamping end of the U-shaped clamping plate. The lifeline limiter is U-shaped and forms a closed loop with the upright post; a retaining ring positioned on the inner side of the lifeline limiter is fixed on the upright post; the device has the advantages that the device is convenient to mount and demount, the problems that in the prior art, steel pipes need to be cut in the later period, materials are wasted, and the structural strength of a steel beam is possibly damaged can be solved, the problem that clamping of the U-shaped clamping plates is loosened can be found in time, and high-altitude operation safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure installation engineering, and relates to a high-altitude lifeline fixing device. Background Art

[0002] At present, most steel structure industrial plants have the characteristics of high height and large span. Steel components such as steel columns and steel beams are hoisted by hoists, while the installation and fixation of the upper structure is completed manually through aerial work. During the implementation of general steel structure installation projects, a steel pipe is welded and fixed on the steel beam at a certain distance. The steel pipe is connected to a steel wire rope as a lifeline for the suspension of the safety belt of the aerial workers. This construction method requires cutting of the steel pipe in the later stage, which not only causes waste of materials, but also may damage the structural strength of the steel beam.

[0003] After searching, it was found that a Chinese patent publication number is CN216196801U, which provides a lifeline fixing device for high-altitude operations on steel beams, including a steel wire rope, a fixing component for installing the steel wire rope, and a fracture safety buckle. The fixing component of the steel wire rope includes a hanging part, a support rod and a clamping seat. The hanging part and the clamping seat are respectively fixed on the top and bottom of the support rod. The clamping seat is a U-shaped splint and a matching fastener. The U-shaped splint is clamped on the upper flange of the steel beam and is fixed to the steel beam through a detachable connection with the fastener. The steel wire rope is fixed above the steel beam through the hanging part at the top of the support rod. The fracture gap of the fracture safety buckle can pass through the hanging part, but not through the steel wire rope. The fracture safety buckle can slide back and forth on the fixed steel wire rope without falling off.

[0004] Although the device has a simple and stable structure, a connecting piece is arranged between a pair of U-shaped clamps to ensure that the paired U-shaped clamps in the clamping seat will not fall off the flange of the steel beam, and the device is easy to install and dismantle and can be recycled, avoiding the problem of directly welding the steel pipe for fixing the lifeline wire rope to the steel beam and then cutting and dismantling it again to affect the quality of the steel beam. However, after the device is used, the nuts or screws on the U-shaped clamps may become loose, and it is difficult for aerial workers to quickly discover the looseness of the nuts or screws, resulting in the U-shaped clamps and the steel beam being not tightly clamped, posing a safety hazard. In addition, the two U-shaped clamps are connected by multiple nuts, multiple connecting pieces and multiple screws, which are time-consuming and labor-intensive to install together. Utility Model Content

[0005] In view of the above technical problems existing in the prior art, a high altitude lifeline fixing device is provided.

[0006] The purpose and effect of the utility model are achieved by the following specific technical means:

[0007] A high altitude lifeline fixing device, comprising a lifeline stopper, a column, a U-shaped clamping plate and a steel beam, wherein the lifeline stopper, the column and the U-shaped clamping plate are provided with a plurality of lifeline stoppers, the lifeline stopper is fixed above the outside of the column, the U-shaped clamping plate is clamped on the flange on one side of the top of the steel beam, and the column is fixed on the side away from the clamping end of the U-shaped clamping plate;

[0008] The lifeline stopper is U-shaped and forms a closed loop with the column, and a buckle located inside the lifeline stopper is fixed on the column;

[0009] A limit piece is installed on the U-shaped clamp, the lower end of the limit piece is located above the inside of the U-shaped clamp, and a pressure sensor is installed on the lower end of the limit piece. A control module is installed on the steel beam, and the pressure sensors are electrically connected to the control module.

[0010] Furthermore, a screw hole is provided on the top of the U-shaped clamping plate;

[0011] The limiting member includes a high-strength bolt and a limiting steel plate. The high-strength bolt is threadedly connected in a screw hole, and the lower end of the high-strength bolt extends out of the screw hole. The limiting steel plate is welded to the lower end of the high-strength bolt, and the pressure sensor is fixed to the bottom of the limiting steel plate.

[0012] Furthermore, an alarm is installed on the steel beam, and the alarm is electrically connected to the control module.

[0013] Furthermore, at least one ribbed steel plate is welded between the column and the U-shaped clamping plate.

[0014] Furthermore, the lifeline limiter is a plain round steel bar.

[0015] Furthermore, a steel wire rope is installed between a plurality of the lifeline limiters or a plurality of buckles.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In this type of high-altitude lifeline fixing device, the space of the closed loop formed by the lifeline limiter and the column is much larger than the diameter of the wire rope. If the wire rope is connected to several U-shaped lifeline limiters and the high-altitude workers need to move slightly outward, the wire rope has enough space to move in the lifeline limiter, which is convenient for the high-altitude workers to move.

[0018] 2. If the environment where the high-altitude workers are located requires tightening the wire rope, the high-altitude workers can buckle the wire rope into several buckles to accurately limit the wire rope.

[0019] 3. Before using the device, the control module and the pressure sensor are both connected to an external power supply. If the pressure value measured by the pressure sensor is less than the preset value, it means that the limiter where the pressure sensor is located is loose. The pressure sensor will feed back the measured data to the control module. The high-altitude workers can immediately check the control module to find out which limiter is loose, and quickly tighten the loose limiter to ensure the safety of the high-altitude workers at work in the later stage.

[0020] 4. The device is easy to install and disassemble, and can solve the problem mentioned in the present application that the steel pipe needs to be cut later, which not only causes waste of materials but also may damage the structural strength of the steel beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 Another schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifeline limiter, column and U-shaped clamp of the utility model;

[0024] Figure 4 It is a schematic diagram of the side cross-sectional structure of the column and the U-shaped clamping plate of the utility model;

[0025] Figure 5 For this utility model Figure 1 Schematic diagram of the local structure at point A.

[0026] Markings in the figure: lifeline limiter 1, column 2, ribbed steel plate 3, high-strength bolt 4, limit steel plate 5, U-shaped clamp 6, steel beam 7, steel wire rope 8, buckle 9, control module 10, alarm 11, pressure sensor 12. DETAILED DESCRIPTION

[0027] See also Figure 1-5 , the embodiments of the utility model are further described;

[0028] A high altitude lifeline fixing device, comprising a lifeline stopper 1, a column 2, a U-shaped clamping plate 6 and a steel beam 7, wherein the lifeline stopper 1, the column 2 and the U-shaped clamping plate 6 are all provided with a plurality of stoppers, the lifeline stopper 1 is fixed on the upper part of the outside of the column 2, the U-shaped clamping plate 6 is clamped on the flange on one side of the top of the steel beam 7, and the column 2 is fixed on the side away from the clamping end of the U-shaped clamping plate 6;

[0029] The lifeline stopper 1 is U-shaped and forms a closed loop with the column 2, and a buckle 9 located inside the lifeline stopper 1 is fixed on the column 2;

[0030] A limiter is installed on the U-shaped clamp 6, the lower end of the limiter is located above the inside of the U-shaped clamp 6, and a pressure sensor 12 is installed on the lower end of the limiter. A control module 10 is installed on the steel beam 7, and the pressure sensor 12 is electrically connected to the control module 10;

[0031] A steel wire rope 8 is installed between a plurality of lifeline stoppers 1 or a plurality of buckles 9;

[0032] In this solution, when the device is used, the limiter is moved upward to allow the U-shaped clamp 6 to have enough space inside to clamp on the flange on one side of the top of the steel beam 7, and the limiter is moved downward to make the pressure sensor 12 at its bottom close to the steel beam 7. It should be noted that the side of the pressure sensor 12 in contact with the steel beam 7 is anti-slip treated. At this time, the U-shaped clamp 6 is firmly clamped on the steel beam 7. The remaining U-shaped clamp 6 can be clamped on the steel beam 7 according to the above method. The installation steps are simple, and then the wire rope 8 can be installed between several lifeline limiters 1 or several buckles 9. At this time, the wire rope 8 serves as a lifeline, and high-altitude workers can hang their safety belts on the wire rope 8 to perform high-altitude operations.

[0033] Combination Figure 1 and 5 The space of the closed loop formed by the lifeline limiter 1 and the column 2 is much larger than the diameter of the wire rope 8. If the wire rope 8 is inserted into several U-shaped lifeline limiters 1 and the high-altitude workers need to move slightly outward, the wire rope 8 has enough space to move in the lifeline limiter 1, which is convenient for the high-altitude workers to move.

[0034] Combination Figure 2 If the environment where the aerial workers are located requires tightening the wire rope 8, the aerial workers can buckle the wire rope 8 in a plurality of buckles 9 to accurately limit the position of the wire rope 8.

[0035] Exemplarily, the control module 10 can be a control module such as a PLC controller or a control panel. Before using the device, the control module 10 is used to set the pressure value of the pressure sensor 12. The setting of the pressure value needs to be based on the value measured by the pressure sensor 12 after the limiter compresses the steel beam 7. Before using the device, the control module 10 and the pressure sensor 12 are both connected to an external power supply. If the pressure value measured by the pressure sensor 12 is less than the preset value, it means that the limiter where the pressure sensor 12 is located is loose. The pressure sensor 12 will feed back the measured data to the control module 10. The high-altitude workers can immediately check the control module 10 to understand which limiter is loose, and quickly tighten the loose limiter to ensure the safety of the high-altitude workers in the later stage.

[0036] When the aerial work is completed and the device is no longer needed, the U-shaped clamp 6 can be removed from the steel beam 7 by following the reverse operation steps of the U-shaped clamp 6 clamping the steel beam 7, which can solve the problem mentioned in the present application that the steel pipe needs to be cut later, which not only causes waste of materials but also may damage the structural strength of the steel beam.

[0037] The top of the U-shaped clamping plate 6 is provided with a screw hole;

[0038] The limiting member includes a high-strength bolt 4 and a limiting steel plate 5. The high-strength bolt 4 is threadedly connected in the screw hole, and the lower end of the high-strength bolt 4 extends out of the screw hole. The limiting steel plate 5 is welded to the lower end of the high-strength bolt 4, and the pressure sensor 12 is fixed to the bottom of the limiting steel plate 5.

[0039] In this solution, rotating the high-strength bolt 4 upward can drive the limit steel plate 5 and the pressure sensor 12 to move upward, so that there is enough space inside the U-shaped clamp 6 to clamp on the flange on one side of the top of the steel beam 7; if the U-shaped clamp 6 is sleeved on the flange of the steel beam 7 and needs to be clamped, rotating the high-strength bolt 4 downward can make the limit steel plate 5 and the pressure sensor 12 cooperate with the U-shaped clamp 6 to firmly clamp the steel beam 7.

[0040] An alarm 11 is installed on the steel beam 7, and the alarm 11 is electrically connected to the control module 10;

[0041] In this solution, when the pressure value measured by the pressure sensor 12 is less than the preset value, the pressure sensor 12 will feed back the measured data to the control module 10. After receiving the signal, the control module 10 will activate the alarm 11. When the nearby staff hear the alarm, they can immediately check the control module 10 to find out which limit part is loose, and quickly tighten the loose limit part to ensure the safety of the height workers.

[0042] At least one ribbed steel plate 3 is welded between the column 2 and the U-shaped clamping plate 6;

[0043] In this solution, the ribbed steel plate 3 is provided to enhance the firmness and stability between the column 2 and the U-shaped clamping plate 6 .

[0044] The lifeline stopper 1 is a plain round steel bar;

[0045] In this solution, the surface of the plain round steel bar has no raised ribs and presents a smooth circular cross-section, which reduces the friction resistance between the lifeline limiter 1 and the wire rope 8. The plain round steel bar has high hardness and good gripping performance, and is therefore a preferred material for the lifeline limiter 1.

Claims

1. A high altitude lifeline fixing device, comprising a lifeline stopper (1), a column (2), a U-shaped clamp (6) and a steel beam (7), wherein the lifeline stopper (1), the column (2) and the U-shaped clamp (6) are each provided with a plurality of lifeline stoppers (1), the lifeline stopper (1) is fixed to the upper part of the outside of the column (2), the U-shaped clamp (6) is clamped on the flange on one side of the top of the steel beam (7), and the column (2) is fixed on the side away from the clamping end of the U-shaped clamp (6), characterized in that: The lifeline stopper (1) is U-shaped and forms a closed loop with the column (2); a buckle (9) located inside the lifeline stopper (1) is fixed on the column (2); A limit piece is installed on the U-shaped clamp (6), the lower end of the limit piece is located above the inside of the U-shaped clamp (6), and a pressure sensor (12) is installed on the lower end of the limit piece. A control module (10) is installed on the steel beam (7), and the pressure sensors (12) are electrically connected to the control module (10).

2. A high altitude lifeline fixing device according to claim 1, characterized in that: The top of the U-shaped clamping plate (6) is provided with a screw hole; The limiting member comprises a high-strength bolt (4) and a limiting steel plate (5); the high-strength bolt (4) is threadedly connected in a screw hole, and the lower end of the high-strength bolt (4) extends out of the screw hole; the limiting steel plate (5) is welded to the lower end of the high-strength bolt (4); and the pressure sensor (12) is fixed to the bottom of the limiting steel plate (5).

3. A high altitude lifeline fixing device according to claim 1, characterized in that: An alarm (11) is installed on the steel beam (7), and the alarm (11) is electrically connected to the control module (10).

4. A high altitude lifeline fixing device according to claim 1, characterized in that: At least one ribbed steel plate (3) is welded between the upright column (2) and the U-shaped clamping plate (6).

5. A high altitude lifeline fixing device according to claim 1, characterized in that: The lifeline stopper (1) is a plain round steel bar.

6. A high altitude lifeline fixing device according to claim 1, characterized in that: A steel wire rope (8) is installed between a plurality of the lifeline stoppers (1) or a plurality of buckles (9).

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