Edge hole protection and safety belt connecting device and using method thereof

Abstract

The invention discloses an edge hole protecting and safety belt connecting device and a using method thereof. The device comprises a first scissor rod, a second scissor rod, a clamp core tube, a locking rod, a clamp sleeve and a safety belt hooking assembly. Strip-shaped grooves are formed in the first scissor rod and the second scissor rod; the middle parts of the scissor rods are hinged through a central shaft; the clamp core tubes are connected to the two ends of the scissor rod through first adjusting bolt shafts correspondingly. The locking rod is connected with the strip-shaped groove of the scissor rod through a second adjusting bolt shaft; the clamp sleeves are respectively mounted at the end parts of the clamp core tubes; an adjusting hole is formed in the side, away from the structural wall, of the clamp sleeve, and the relative position of the clamp sleeve and the corresponding clamp core tube is fixed through an adjusting button inserted into the adjusting hole. The safety belt hanging assembly comprises a screw rod and a hanging ring, and the screw rod is connected with the clamp core tube through a nut. According to the edge hole protection and safety belt connecting device, rapid adaptation of different wall thicknesses and hole sizes can be achieved, and the universality and universality of the device are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of construction safety facilities, in particular relates to a kind of edge hole protection and safety belt connecting device and its using method. BACKGROUND

[0002] In the field of construction engineering, high-altitude operation is one of the most dangerous jobs, especially the edge operation, and the completeness of its safety protection measures is directly related to the safety of the workers. According to the construction safety management specification, the edge, hole and other positions with height difference need to be provided with edge protection facilities, and reliable safety belt hanging points should be provided for the workers. However, the actual construction site is complex, and the existing edge protection measures and safety belt hanging methods often have deficiencies, making it difficult to balance the protection reliability, installation convenience and universality.

[0003] The common edge protection methods at present mainly include: forming a physical protection barrier by erecting scaffolding or welding steel pipe railings; embedding fixed parts at the edge of the floor or the hole position, and forming a protection line by pulling a steel wire rope; directly punching expansion bolts on the structure wall as safety belt hanging points. Although these methods have played a role to some extent, they still have many defects.

[0004] Firstly, the protection method of traditional scaffolding or steel pipe railing is heavy in structure and time-consuming to install, which not only requires a large number of workers, but also occupies a large construction space. In complex working conditions, such as hole edge, narrow construction surface, etc., it is often difficult to lay out, and there is a situation that the work surface cannot be effectively covered. In addition, once the fixed protection facilities are erected, their position and height cannot be adjusted, and they cannot meet the protection needs of different wall thicknesses or different hole sizes. Secondly, the steel wire rope hanging point method generally uses wall bolt holes or sets anchor points at both ends of the wall, which can form a continuous safety belt hanging channel, but its installation depends on the structure condition, and often needs to be pre-drilled or pre-buried. If it is not pre-drilled or pre-buried during the actual construction stage, it will be difficult to lay out. In addition, the steel wire rope has the problem of sagging and swinging, which makes the hanging point unstable, and if the workers concentrate in a certain area, there is also the risk of the steel wire rope being too loose under stress. Finally, the expansion bolt as a safety belt hanging point method is simple, but it needs to drill holes on the concrete structure, which will damage the structural integrity, and the expansion bolt has single stress point and limited tensile performance, which has the risk of pulling out. At the same time, once the position of the expansion bolt is fixed, it cannot be adjusted according to the needs of the operation, and the flexibility is very poor. For high-altitude construction workers who need to change operation positions repeatedly, this method cannot provide continuous and reliable protection.

[0005] In addition, the existing edge protection device has poor versatility. The thickness of the structure wall is different in different engineering projects, and the size of the hole and the edge shape are various. The traditional protection facilities cannot be self-adapted and adjusted, and often need to be individually processed or modified according to the specific working conditions, thereby increasing the construction cost and period. At the same time, some protection devices are large in size and complicated in operation during disassembly and transportation, and are difficult to realize turnover utilization, causing resource waste. SUMMARY

[0006] The purpose of the present application is to provide an edge hole protection and safety belt connecting device, and another purpose of the present application is to provide a method for using the edge hole protection and safety belt connecting device.

[0007] The technical scheme for solving the above technical problems of the present application is as follows: an edge hole protection and safety belt connecting device, comprising: a first scissor lever and a second scissor lever, a clamp core pipe, a locking rod, a clamp sleeve and a safety belt hanging assembly; the inside of the first scissor lever and the second scissor lever is provided with a strip-shaped groove; the middle part of the first scissor lever and the second scissor lever is connected by a center shaft hinge; the clamp core pipe is connected at both ends of the first scissor lever by a first adjusting bolt shaft, and the clamp core pipe is connected at both ends of the second scissor lever by a first adjusting bolt shaft; one end of the locking rod is connected with the strip-shaped groove of the first scissor lever by a second adjusting bolt shaft, and the other end of the locking rod is connected with the strip-shaped groove of the second scissor lever by a second adjusting bolt shaft; the clamp sleeve is installed at the end of the clamp core pipe; the side of the clamp sleeve facing the structure wall is provided with an anti-skid piece, and the side of the clamp sleeve away from the structure wall is provided with a handle; the side of the clamp sleeve away from the structure wall is provided with an adjusting hole, and the relative position of the clamp sleeve and the corresponding clamp core pipe is fixed by inserting an adjusting button into the adjusting hole; the safety belt hanging assembly comprises a screw rod and a lifting ring, the lifting ring is fixed at the first end of the screw rod, and the screw rod is connected with the clamp core pipe by a nut.

[0008] The edge hole protection and safety belt connecting device as described above, further, the clamp core pipe is respectively a first core pipe, a second core pipe, a third core pipe and a fourth core pipe, the first core pipe and the second core pipe are connected at both ends of the first scissor lever; the third core pipe and the fourth core pipe are connected at both ends of the second scissor lever.

[0009] The edge hole protection and safety belt connecting device as described above, further, screw rod holes are formed in the first core pipe, the second core pipe, the third core pipe and the fourth core pipe, the screw rods of one set of safety belt hanging assemblies pass through the first core pipe and the fourth core pipe corresponding in position and in up and down directions, and the screw rods of another set of safety belt hanging assemblies pass through the second core pipe and the third core pipe corresponding in position and in up and down directions.

[0010] The edge hole protection and safety belt connecting device has the advantages that the device can be used for protecting the edge hole and connecting the safety belt, and the device can be used for protecting the edge hole and connecting the safety belt.

[0011] The edge hole protection and safety belt connecting device has the advantages that the device can be used for protecting the edge hole and connecting the safety belt, and the device can be used for protecting the edge hole and connecting the safety belt.

[0012] The edge hole protection and safety belt connecting device has the advantages that the device can be used for protecting the edge hole and connecting the safety belt, and the device can be used for protecting the edge hole and connecting the safety belt.

[0013] The edge hole protection and safety belt connecting device has the advantages that the device can be used for protecting the edge hole and connecting the safety belt, and the device can be used for protecting the edge hole and connecting the safety belt. Step 1, according to the thickness of the temporary hole and the structure wall, the angle of the first and second scissors bars, the angle between the clamp core pipe and the scissors bar, and the relative extension length of the clamp sleeve and the clamp core pipe are preliminarily adjusted. Step 2, the edge hole protection and safety belt connecting device is installed at the position of the temporary hole and the structure wall, and the angle of the first and second scissors bars, the angle between the clamp core pipe and the scissors bar, and the relative extension length of the clamp sleeve and the clamp core pipe are secondarily adjusted. Step 3, the second adjusting bolt shaft is tightened to lock the angle of the first and second scissors bars, and the first adjusting bolt shaft is tightened to lock the angle between the clamp core pipe and the scissors bar. Step 4, the screw rod of the safety belt hanging assembly is inserted into the screw rod hole of the clamp core pipe, and the screw nut is locked, and at this time, the edge hole protection and safety belt connecting device is connected to the structure wall stably.

[0014] The edge hole protection and safety belt connecting device has the advantages that the device can be used for protecting the edge hole and connecting the safety belt, and the device can be used for protecting the edge hole and connecting the safety belt.

[0015] The method for using the edge hole protection and safety belt connecting device as described above, preferably, after the edge operation is completed, the screw cap is screwed out, the screw rod of the safety belt hanging assembly is removed, the first adjusting bolt shaft and the second adjusting bolt shaft are loosened, and the edge hole protection and safety belt connecting device is removed from the construction position; the included angle between the first scissor lever and the second scissor lever is adjusted to the minimum angle, the second adjusting bolt shaft is locked; the angle between the clamp core pipe and the scissor lever is adjusted and the first adjusting bolt shaft is locked; and the telescopic length of the clamp sleeve and the clamp core pipe is adjusted to the shortest.

[0016] The beneficial effects of the present application are: The adaptability is strong, the three adjustable structures of "scissor lever included angle + clamp core pipe and scissor lever included angle + clamp sleeve telescoping" are used to realize the rapid adaptation to different wall thicknesses and hole sizes, and the universality and versatility of the device are improved. The stability is high, the central shaft + two side locking rods cooperate with the strip-shaped grooves, and the double adjusting bolt shafts form a rigid triangular stabilizing frame, which is not easy to deform and loosen under stress. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or other aspects of the present application will become more apparent and more readily appreciated through consideration of the following detailed description, taken in conjunction with the accompanying drawings, which are merely illustrative and are not intended to limit the present application, wherein: Figure 1 The schematic diagram of the edge hole protection and safety belt connecting device of one embodiment of the present application; Figure 2 The schematic diagram of the edge hole protection and safety belt connecting device of one embodiment of the present application; Figure 3 The bottom view of the edge hole protection and safety belt connecting device of one embodiment of the present application; Figure 4 The connection schematic diagram of the clamp sleeve and the clamp core pipe of one embodiment of the present application; Figure 5 The sectional view schematic diagram of the clamp sleeve of one embodiment of the present application; Figure 6 The overall schematic diagram of the safety belt hanging assembly of one embodiment of the present application; Figure 7 The partial enlarged schematic diagram of the safety belt hanging assembly of one embodiment of the present application; Figure 8 The flowchart of the method for using the edge hole protection and safety belt connecting device.

[0018] In the drawings, the component list represented by each reference numeral is as follows: 1, first scissor bar, 101, strip slot, 2, second scissor bar, 3, clamp core tube, 31, first core tube, 32, second core tube, 33, third core tube, 34, fourth core tube, 4, first locking rod, 5, second locking rod, 6, center shaft, 7, first adjusting bolt shaft, 8, safety belt hanging assembly, 81, screw rod, 82, nut, 83, lifting ring, 84, baffle, 85, rotating block, 86, rotating shaft, 9, clamp sleeve, 91, handle, 92, anti-skid tooth, 93, adjusting button, 94, adjusting hole, 10, structural wall, 11, safety belt, 12, second adjusting bolt shaft. DETAILED DESCRIPTION

[0019] Hereinafter, embodiments of the edge opening protection and safety belt connecting device and the method for using the same according to the present application will be described with reference to the accompanying drawings.

[0020] The embodiments described herein are merely illustrative and exemplary, and are not to be interpreted as limiting the embodiments of the present application and the scope of the present application. In addition to the embodiments described herein, those skilled in the art will be able to adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of the present application, which include technical solutions that make any obvious substitutions and modifications to the embodiments described herein.

[0021] The drawings of the present specification are schematic drawings that assist in explaining the concept of the present application, and schematically represent the shape of each part and the relationship therebetween. Note that, in order to clearly show the structure of each component of the embodiments of the present application, the drawings are not drawn to the same scale. The same reference numerals are used to denote the same parts.

[0022] Hereinafter, an edge opening protection and safety belt connecting device according to an embodiment of the present application will be described with reference to the accompanying drawings. Figures 1 to 7 The edge opening protection and safety belt connecting device according to an embodiment of the present application includes: The first scissor bar 1 and the second scissor bar 2 are internally provided with a strip-shaped groove 101; the middle part of the first scissor bar 1 and the second scissor bar 2 are hingedly connected through a center shaft 6; in a specific embodiment, the first scissor bar 1 and the second scissor bar 2 can be made of rectangular steel pipes, channel steels or circular pipes, preferably with a thickness of 3-6 mm, so as to ensure that no plastic deformation occurs when bearing the impact force of the operating personnel. The strip-shaped grooves on the first scissor bar and the second scissor bar can adopt a continuous structure, or a hole for installing the center shaft can be provided in the middle part, and two strip-shaped grooves are respectively arranged on both sides of the hole. By providing the above-mentioned hole, the displacement of the center shaft can be avoided. By adopting a single strip-shaped groove structure, the center shaft is actually inserted into the middle part of the strip-shaped groove and realizes the connection of the first scissor bar and the second scissor bar. This form can adjust the hinge position of the center shaft, and thus can realize the clamping when the thickness of the structure wall on both sides is inconsistent. The end of the scissor bar deviated from the center shaft is used for clamping the structure wall with a thinner thickness, and the other end is used for clamping the structure wall with a thicker thickness.

[0023] The clamp core pipe 3 is connected to the two ends of the first scissor bar 1 through the first adjusting bolt shaft 7 respectively, and the clamp core pipe 3 is connected to the two ends of the second scissor bar 2 through the first adjusting bolt shaft 7 respectively; in a preferred edge hole protection and safety belt connecting device embodiment, as shown in Figure 1 and Figure 2 The clamp core pipe 3 is respectively a first core pipe 31, a second core pipe 32, a third core pipe 33 and a fourth core pipe 34, the first core pipe 31 and the second core pipe 32 are connected to the two ends of the first scissor bar 1; the third core pipe 33 and the fourth core pipe 34 are connected to the two ends of the second scissor bar 2. The clamp core pipe 3 is preferably made of a seamless steel pipe or an alloy pipe material, with a diameter of 25-40 mm, and a length range of 200-500 mm, so as to adapt to structure walls with different thicknesses. The first adjusting bolt shaft 7 includes a screw rod, one end of the screw rod is a flapper, and the other end of the screw rod is provided with a nut, so that the hinge and locking of the clamp core pipe and the scissor bar can be realized through the first adjusting bolt shaft.

[0024] The locking rod is connected to the strip-shaped groove 101 of the first scissor bar 1 through the second adjusting bolt shaft 12 at one end, and is connected to the strip-shaped groove 101 of the second scissor bar 2 through the second adjusting bolt shaft 12 at the other end; preferably, the locking rod can be stamped or formed from a steel plate or a solid round steel with a diameter of 8-16 mm, so as to ensure the stability under different clamping angles. Through the fixed connection of the locking rod and the two ends of the scissor bar, the opening angle of the first scissor bar and the second scissor bar can be fixed, and a stable overall supporting structure can be formed. In a preferred edge hole protection and safety belt connecting device embodiment, as shown in Figure 1 and Figure 2As shown, the locking rods include a first locking rod 4 and a second locking rod 5; one end of the first locking rod 4 is connected with the strip-shaped slot 101 of the first scissor lever 1 through a second adjusting bolt shaft 12, and the other end of the first locking rod 4 is connected with the strip-shaped slot 101 of the second scissor lever 2 through a second adjusting bolt shaft 12; one end of the second locking rod 5 is connected with the strip-shaped slot 101 of the first scissor lever 1 through a second adjusting bolt shaft 12, and the other end of the second locking rod 5 is connected with the strip-shaped slot 101 of the second scissor lever 2 through a second adjusting bolt shaft 12; the first locking rod 4 and the second locking rod 5 are respectively arranged on both sides of the central shaft 6. By arranging the first locking rod and the second locking rod on both sides of the central shaft, the first scissor lever and the second scissor lever can receive symmetrical supporting force and fixing force on both sides of the central shaft, so that deformation or displacement of the first scissor lever and the second scissor lever during use is avoided, and the safety during use is improved.

[0025] The clamp sleeve 9 is respectively arranged at the end of the clamp core pipe 3; the clamp sleeve 9 is provided with an anti-skid member on the side facing the structural wall 10, and is provided with a handle 91 on the side away from the structural wall 10; the clamp sleeve 9 is provided with an adjusting hole 94 on the side away from the structural wall 10, and the relative position of the clamp sleeve 9 and the corresponding clamp core pipe 3 is fixed by inserting an adjusting button 93 into the adjusting hole 94; the clamp sleeve 9 preferably adopts a steel sleeve with an outer diameter larger than that of the clamp core pipe 3; the anti-skid member can be an anti-skid tooth 92, an anti-skid rubber protrusion or an anti-skid sand layer coating structure. The adjusting knob can be a screw rod with an operating part, and a threaded structure matched with the screw rod is arranged on the adjusting hole.

[0026] The safety belt hanging assembly 8 includes a screw rod 81 and a lifting ring 83, as shown in Figure 1 and Figure 2 The lifting ring 83 is fixed at the first end of the screw rod 81, and the screw rod 81 is connected with the clamp core pipe 3 through a nut 82. In a preferred edge hole protection and safety belt connecting device embodiment, as shown in Figure 1 and Figure 2 The first core pipe 31, the second core pipe 32, the third core pipe 33 and the fourth core pipe 34 are provided with screw rod holes, the screw rods 81 of one set of safety belt hanging assemblies 8 pass through the first core pipe 31 and the fourth core pipe 34 corresponding in position and in up-down direction, and the screw rods 81 of another set of safety belt hanging assemblies 8 pass through the second core pipe 32 and the third core pipe 33 corresponding in position and in up-down direction. Through the installation and arrangement of the safety belt hanging assembly, on the one hand, the installation node is provided for the connection of the safety belt. On the other hand, the first scissor lever and the second scissor lever are clamped with the corresponding structural wall by using the screw rod and the nut, so that loosening or falling off during construction is avoided. In a preferred edge hole protection and safety belt connecting device embodiment, as shown in Figure 6 and Figure 7As shown, the safety belt hanging assembly 8 further comprises a baffle 84 connected to the first end of the screw rod 81, a rotating block 85 connected to the baffle 84 through a rotating shaft 86, and a lifting ring 83 connected to the rotating block 85. Through the arrangement of the rotating block and the rotating shaft, the twisting of the safety belt during rotation can be released to avoid the safety belt from being knotted and entangled.

[0027] The embodiment of the present application provides a use method of the edge opening protection and safety belt connecting device, the edge opening protection and safety belt connecting device is the edge opening protection and safety belt connecting device according to any one of the above, and the use method of the device comprises the following steps. Step 1, according to the thickness of the temporary opening and the structural wall 10, the included angle of the first shear lever 1 and the second shear lever 2, the included angle between the clamp core pipe 3 and the shear lever, and the relative extension length of the clamp sleeve pipe 9 and the clamp core pipe 3 are preliminarily adjusted; through the above adjustment, the corresponding clamp core pipe is located on the upper and lower sides of the corresponding structural wall; Step 2, the edge opening protection and safety belt connecting device is installed at the position of the temporary opening and the structural wall 10, and the included angle of the first shear lever 1 and the second shear lever 2, the included angle between the clamp core pipe 3 and the shear lever, and the relative extension length of the clamp sleeve pipe 9 and the clamp core pipe 3 are secondarily adjusted; through the above adjustment, the corresponding clamp core pipe is closely attached to the corresponding structural wall, and the clamp sleeve pipe has sufficient overlapping length with the structural wall, that is, preferably, the anti-skid member arranged on the clamp sleeve pipe is in full contact with the structural wall.

[0028] Step 3, the second adjusting bolt shaft 12 is tightened to lock the included angle of the first shear lever 1 and the second shear lever 2, and the first adjusting bolt shaft 7 is tightened to lock the included angle between the clamp core pipe 3 and the shear lever; Step 4, the screw rod 81 of the safety belt hanging assembly 8 is inserted into the screw rod hole of the clamp core pipe 3, and the screw nut 82 is locked, at this time, the edge opening protection and safety belt connecting device has been connected to the structural wall 10 stably.

[0029] Step 5, the safety belt 11 of the edge operation personnel is tied in the lifting ring 83 of the safety belt hanging assembly 8.

[0030] After the edge work is completed, the screw cap 82 is unscrewed and the screw rod 81 of the safety belt hanging assembly 8 is removed, the first adjusting screw shaft 7 and the second adjusting screw shaft 12 are loosened, and the edge hole protection and safety belt connecting device is removed from the construction position; the included angle between the first shear lever 1 and the second shear lever 2 is adjusted to the minimum angle, and the second adjusting screw shaft 12 is locked; at this time, the occupied space of the first shear lever and the second shear lever is in the minimum state. The angle between the clamp core pipe 3 and the shear lever is adjusted and the first adjusting screw shaft 7 is locked; when the storage space or the transportation space is suitable for a long strip structure, the clamp core pipe and the shear lever are located in the same straight line as much as possible; when the storage space or the transportation space is suitable for a shorter structure, the clamp core pipe is folded inward as much as possible, thereby reducing the overall length of the device. The telescopic length of the clamp sleeve pipe 9 and the clamp core pipe 3 is adjusted to the shortest.

[0031] The technical features disclosed above are not limited to the combinations disclosed with other features, and other combinations between technical features can also be made by those skilled in the art according to the purpose of the application, and the purpose of the application is achieved.

Claims

1. A device for protecting openings near edges and for connecting safety belts, characterized in that, include: The first scissor bar (1) and the second scissor bar (2) are provided with strip-shaped grooves (101) inside the first scissor bar (1) and the second scissor bar (2); the middle parts of the first scissor bar (1) and the second scissor bar (2) are hinged together by a central shaft (6); The clamp core tube (3) is connected to both ends of the first scissor bar (1) via the first adjusting bolt shaft (7), and the clamp core tube (3) is connected to both ends of the second scissor bar (2) via the first adjusting bolt shaft (7); A locking rod, one end of which is connected to the slot (101) of the first scissor bar (1) via the second adjusting bolt shaft (12), and the other end of which is connected to the slot (101) of the second scissor bar (2) via the second adjusting bolt shaft (12); A clamp sleeve (9) is installed at the end of the clamp core tube (3); the clamp sleeve (9) is provided with an anti-slip part on the side facing the structural wall (10), and a handle (91) is provided on the side of the clamp sleeve (9) away from the structural wall (10); an adjustment hole (94) is provided on the side of the clamp sleeve (9) away from the structural wall (10), and the relative position of the clamp sleeve (9) and the corresponding clamp core tube (3) is fixed by inserting the adjustment button (93) into the adjustment hole (94); The safety belt attachment assembly (8) includes a screw (81) and a lifting ring (83). The lifting ring (83) is fixed to the first end of the screw (81). The screw (81) is connected to the clamp core tube (3) through a nut (82).

2. The edge opening protection and safety belt connection device according to claim 1, characterized in that, The clamp core tubes (3) are a first core tube (31), a second core tube (32), a third core tube (33), and a fourth core tube (34). The first core tube (31) and the second core tube (32) are connected to both ends of the first scissor bar (1); the third core tube (33) and the fourth core tube (34) are connected to both ends of the second scissor bar (2).

3. The edge opening protection and safety belt connection device according to claim 2, characterized in that, The first core tube (31), the second core tube (32), the third core tube (33) and the fourth core tube (34) are provided with screw holes. The screw (81) of one set of seat belt hook assembly (8) passes through the first core tube (31) and the fourth core tube (34) with corresponding vertical positions. The screw (81) of another set of seat belt hook assembly (8) passes through the second core tube (32) and the third core tube (33) with corresponding vertical positions.

4. The edge opening protection and safety belt connection device according to claim 3, characterized in that, The seat belt attachment assembly (8) further includes a baffle (84), a rotating block (85), and a rotating shaft (86). The baffle (84) is connected to the first end of the screw (81), the rotating block (85) is connected to the baffle (84) through the rotating shaft (86), and the lifting ring (83) is connected to the rotating block (85).

5. The edge opening protection and safety belt connection device according to any one of claims 1 to 4, characterized in that, The locking rod includes a first locking rod (4) and a second locking rod (5); one end of the first locking rod (4) is connected to the strip groove (101) of the first scissor bar (1) through the second adjusting bolt shaft (12), and the other end of the first locking rod (4) is connected to the strip groove (101) of the second scissor bar (2) through the second adjusting bolt shaft (12); one end of the second locking rod (5) is connected to the strip groove (101) of the first scissor bar (1) through the second adjusting bolt shaft (12), and the other end of the second locking rod (5) is connected to the strip groove (101) of the second scissor bar (2) through the second adjusting bolt shaft (12); the first locking rod (4) and the second locking rod (5) are respectively disposed on both sides of the central shaft (6).

6. The edge opening protection and safety belt connection device according to claim 1, characterized in that, The anti-slip component is an anti-slip tooth (92) or an anti-slip rubber protrusion.

7. A method for using a protective device for openings near edges and a safety belt connection device, characterized in that, The edge opening protection and safety belt connection device is the edge opening protection and safety belt connection device according to any one of claims 1 to 6; the method of using the device includes the following steps: Step 1: Based on the thickness of the temporary opening and the structural wall (10), make preliminary adjustments to the included angle of the first scissor bar (1) and the second scissor bar (2), the included angle between the clamp core tube (3) and the scissor bar, and the relative extension length of the clamp sleeve (9) and the clamp core tube (3); Step 2: Install the edge opening protection and safety belt connection device to the temporary opening and structural wall (10) position, and adjust the included angle of the first scissor bar (1) and the second scissor bar (2), the included angle between the clamp core tube (3) and the scissor bar, and the relative extension length of the clamp sleeve (9) and the clamp core tube (3) for the second time. Step 3: Tighten the second adjusting bolt shaft (12) to lock the included angle between the first scissor bar (1) and the second scissor bar (2); Tighten the first adjusting bolt shaft (7) to lock the included angle between the clamp core tube (3) and the scissor bar; Step 4: Insert the screw (81) of the safety belt hook assembly (8) into the screw hole of the clamp core tube (3) and tighten it with the nut (82). At this time, the edge opening protection and safety belt connection device are firmly connected to the structural wall (10).

8. The method of using the edge opening protection and safety belt connection device according to claim 7, characterized in that, It also includes step 5, which involves fastening the safety belt (11) of the worker working near the edge to the sling (83) of the safety belt attachment assembly (8).

9. The method of using the edge protection and safety belt connection device according to claim 7 or 8, characterized in that, After the edge work is completed, unscrew the nut (82) and remove the screw (81) of the safety belt hook assembly (8), loosen the first adjusting bolt shaft (7) and the second adjusting bolt shaft (12), and remove the edge opening protection and safety belt connection device from the construction position; adjust the included angle between the first scissor bar (1) and the second scissor bar (2) to the minimum angle, and lock the second adjusting bolt shaft (12); adjust the angle between the clamp core tube (3) and the scissor bar and lock the first adjusting bolt shaft (7); adjust the telescopic length of the clamp sleeve (9) and the clamp core tube (3) to the shortest.

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