Assembly type multi-ribbed formwork installation and construction method and multi-ribbed formwork hoisting structure

Abstract

The invention relates to the technical field of building formworks, in particular to an assembly type dense rib formwork installation construction method and a dense rib formwork hoisting structure, and the construction method comprises the following steps that firstly, a needed formwork supporting structure is erected; secondly, needed formwork bodies are pre-assembled on the ground or a floor, multiple sets of formwork assemblies are formed, and each set of formwork assembly comprises a row of formwork bodies or multiple rows of formwork bodies which are connected into a whole; and thirdly, the multiple sets of formwork assemblies are sequentially hoisted to the position where installation is needed from the ground or the floor through hoisting equipment and a hoisting tool, and every two adjacent sets of formwork assemblies are connected into a whole. According to the method, the formworks are pre-assembled, the multiple sets of formwork assemblies are sequentially hoisted through the hoisting equipment and the hoisting tool, workers do not need to assemble the formwork assemblies one by one at the high position, the high-altitude operation amount is reduced, safety is improved, efficiency is greatly improved, and the modern assembly type construction requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of building formwork, and in particular to an assembled dense-rib formwork installation construction method and a dense-rib formwork hoisting structure. Background Art

[0002] Miller floor formwork is a formwork used in construction projects. It is mainly used for the construction of cast-in-place concrete two-way dense-rib floor slabs (floor slabs). It is suitable for the construction of large spans and large load spaces, such as underground garages, large shopping malls, multi-storey factories, teaching buildings, civil air defense projects, etc.

[0003] In the prior art, the supporting structure required for the formwork is generally set up first, and then the formwork is installed piece by piece manually at a height. In this installation, workers have to work at heights for a long time, there are greater safety hazards, and the construction method is inefficient, which does not meet the requirements of modern prefabricated construction. Summary of the invention

[0004] The problem solved by the present invention is that in the actual construction process of the prior art, the formwork is installed piece by piece, which is inefficient and unsafe. The present invention provides a more efficient and safer assembled dense-rib formwork installation construction method and a dense-rib formwork hoisting structure.

[0005] The present invention is implemented by the following technical scheme: a method for installing and constructing an assembled multi-rib formwork, comprising the following steps:

[0006] Step 1: Set up the required formwork support structure;

[0007] Step 2: pre-assemble the required formwork on the ground or floor to form multiple sets of formwork components, each set of formwork components including one row of formwork or multiple rows of formwork connected as a whole;

[0008] Step 3: Use lifting equipment and lifting tools to sequentially lift multiple sets of formwork components from the ground or floor to the locations where they need to be installed, and connect two adjacent sets of formwork components into a whole.

[0009] Furthermore, the mold shell includes a mold shell top surface, and a circle of mold shell side surfaces are connected to the mold shell top surface and extend downward. The mold shell top surface and the mold shell side surfaces enclosed therewith form a cavity. The lower edge of the mold shell side surface continues to extend horizontally outward to form a flange edge. The outer contour of a circle of flange edges is a rectangle, and the vertical end faces of the outer edges of the flange edges form fitting surfaces that abut against each other between the mold shells; connecting holes are provided on the fitting surfaces of the mold shells, and the connecting holes are horizontally arranged to pass through the cavity to the fitting surface.

[0010] Furthermore, in step 2, during the pre-assembly, the fitting surfaces of two adjacent mold shells are fitted in sequence and fastened together by fasteners penetrating the connecting holes.

[0011] Furthermore, in step three, two adjacent mold shell components are fitted together and fastened together by fasteners penetrating the connecting holes.

[0012] Furthermore, the lifting tool includes a lifting tool frame and a flexible rope. The lifting tool frame is provided with a first lifting position, and the first lifting position is used to connect with the lifting equipment. The lifting tool frame is provided with a plurality of second lifting positions, and the second lifting positions are connected with flexible ropes. The flexible ropes are connected to the mold shell, and the multiple flexible ropes form multi-point lifting for the mold shell assembly.

[0013] Furthermore, the flexible rope includes one of a steel wire rope, a sling, and a sling.

[0014] Furthermore, the flexible rope is a steel wire rope, and the steel wire rope is hoisted by passing through the connecting hole of the mold shell once or multiple times.

[0015] Furthermore, the rope ends of the steel wire rope are connected by an adjustable wire locker.

[0016] Another aspect of the present invention provides a ribbed formwork hoisting structure, comprising a formwork assembly, a hoisting device frame, and a flexible rope.

[0017] The mold shell assembly is composed of a plurality of mold shells, wherein the membrane shell includes a mold shell top surface, and a circle of the mold shell top surface is connected with a mold shell side surface extending downward, and the mold shell top surface and the mold shell side surface enclosed therewith form a cavity, and the lower edge of the mold shell side surface continues to extend horizontally outward to form a flange edge, and the outer contour of a circle of flange edges is rectangular, and the vertical end surface of the outer edge of the flange edge forms a fitting surface abutting each other between the mold shells; a connecting hole is arranged on the fitting surface of the mold shell, and the connecting hole is horizontally arranged to pass through the cavity to the fitting surface, and the mold shell assembly is formed by the fitting surfaces of a plurality of mold shells abutting each other and being fastened and connected by fasteners passing through the connecting holes, and is arranged in one or more rows;

[0018] The length of the hanger frame is at least close to the length of the membrane shell assembly. The hanger frame is provided with a first lifting position, which is used to connect with the lifting equipment. The hanger frame is provided with a plurality of second lifting positions, which are connected with flexible ropes. The flexible ropes are lifted by passing through the connecting holes of the mold shell once or multiple times, and the multiple flexible ropes form multi-point lifting for the mold shell assembly.

[0019] Furthermore, the flexible rope is a steel wire rope, and the rope ends of the steel wire rope are connected by an adjustable wire lock.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention improves construction safety. The formwork is pre-assembled on the ground or floor, and then the formwork assembly is hoisted as a whole to the installation position using hoisting equipment and hoisting tools, which greatly reduces the amount of high-altitude work, reduces construction risks, and improves construction safety.

[0022] 2. The present invention improves construction efficiency. The pre-assembly of the formwork and the overall hoisting method make the construction process smoother, reduce the time for on-site assembly and adjustment, thereby improving construction efficiency, shortening the construction period, and meeting the requirements of modern prefabricated construction.

[0023] 3. The present invention enhances the stability of the mold shell assembly, and ensures that the mold shell assembly is connected to form a stable whole through the rigid connection structure between the mold shells, such as connection holes and fasteners, thereby improving the stability and bearing capacity of the structure.

[0024] 4. The lifting tool of the present invention is flexibly designed. The lifting tool adopts a rigid lifting frame and a flexible rope combination. The design is flexible and can be adjusted according to the size and weight of the mold shell assembly to ensure the safety and stability of the lifting process.

[0025] 5. The dense-rib formwork hoisting structure of the present invention is simple, low in cost and easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the mold shell in the mold shell assembly in Example 1 (three-dimensional top view);

[0027] Figure 2 It is a schematic diagram of the structure of the mold shell in the mold shell assembly in Example 1 (three-dimensional view looking up);

[0028] Figure 3 A schematic diagram of the convenient pre-assembled workbench described in Example 1;

[0029] Figure 4 This is a schematic diagram of the mold shell in Example 1 being suspended on a workbench;

[0030] Figure 5 It is a structural schematic diagram of the connection between the hanger frame and the formwork assembly in Example 1;

[0031] Figure 6 This is a schematic diagram of the connection between the steel wire rope and the mold shell in Example 1;

[0032] Figure 7 It is a schematic diagram of the structure of the steel wire rope and the adjustable wire locker in the first embodiment;

[0033] Figure 8 for Figure 7 A magnified view of the middle thread lock;

[0034] Fig. 9is a schematic diagram of the support structure in Example 1;

[0035] Fig.10 It is a schematic diagram of hoisting the first row of formwork in Example 1;

[0036] Fig.11 It is a schematic diagram of hoisting the second row of formwork in Example 1;

[0037] Fig.12 This is a schematic diagram of the mold shell in Example 1 being completely assembled;

[0038] Fig.13 is a schematic diagram of the hanger frame in the second embodiment;

[0039] Fig.14 is a schematic diagram of the spreader frame in the third embodiment;

[0040] Fig.15 It is a schematic diagram of the connection between the steel wire rope and the mold shell in the fourth embodiment;

[0041] Fig.16 This is a schematic diagram of the connection between the formwork installation lifting ring and the flexible rope in Example 5.

[0042] In the figure:

[0043] 10 mold shell; 11 mold shell top surface; 12 mold shell side surface; 13 cavity; 14 flange edge; 15 fitting surface; 16 connection hole;

[0044] 20 supporting structure;

[0045] 30 lifting equipment;

[0046] 40 Lifting tools: 41 lifting device frame; 411 first lifting position; 412 second lifting position; 42 flexible rope; 43 adjustable wire locker; 44 lifting ring. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1

[0049] like Figure 1-11 As shown, a method for installing and constructing an assembled multi-rib formwork comprises the following steps:

[0050] Step 1: Set up the required formwork 10 support structure 20. The support structure 20 is not limited to a specific structure, and can be a full-height scaffolding, or a form of columns plus steel truss beams or other structural forms that can effectively support the formwork 10, such as Fig. 9 As shown, in this scheme, a full-floor scaffold is used, a top support is set on the top of the scaffold, and multiple steel pipes are placed in the top support. The span of the scaffold is consistent with the span of the formwork 10;

[0051] Step 2: pre-assemble the required formwork 10 on the ground or floor to form multiple sets of formwork components, each set of formwork components includes a row of formwork 10 or multiple rows of formwork 10 connected as a whole; the formwork 10 used needs to have a structure that can be rigidly connected to each other to ensure that the formwork components are connected to form a stable whole. Figure 1-2 As shown, it includes a mold shell top surface 11, and a circle of mold shell side surfaces 12 extending downward are connected to the mold shell top surface 11. The mold shell top surface 11 and the mold shell side surfaces 12 enclosed therewith form a cavity 13 inside, and the lower edge of the mold shell side surfaces 12 continues to extend horizontally outward to form a flange edge 14. The outer contour of a circle of flange edges 14 is a rectangle, and the vertical end surface of the outer edge of the flange edge 14 forms a fitting surface 15 that abuts against each other between the mold shells 10; the fitting surface 15 of the mold shell 10 is provided with a connecting hole 16, and the connecting hole 16 is horizontally arranged to pass through the cavity 13 to the fitting surface 15. During pre-assembly, the fitting surfaces 15 of two adjacent mold shells 10 are fitted together in turn, and fastened and connected by fasteners passing through the connecting holes 16. In this way, by tightening the bolts, it can be ensured that the mold shell components are connected to form a stable whole. Prior to this, as Figure 3 As shown, a workbench convenient for pre-assembly can be set up on the ground, and a structure similar to gymnastics parallel bars can be built using scaffolding steel pipes, which is 0.9 meters wide, 7.5 meters long, and 1 meter high. Workers place the mold shell 10 on the steel pipe on the ground or floor, and 6 mold shells 10 can be placed in a row, such as Figure 4 As shown, the formwork 10 is suspended in the air, so it is convenient for workers to use an electric wrench to quickly tighten the bolts and nuts under the formwork 10, and then wait for hoisting.

[0052] Step 3: Use the lifting equipment 30 and the lifting tool 40 to lift multiple groups of formwork components from the ground or floor to the position where they need to be installed, and connect two adjacent groups of formwork components into a whole. The lifting equipment 30 can use the tower crane or crane at the construction site. The lifting tool 40 includes a lifting device frame 41 and a flexible rope 42. The lifting device frame 41 is provided with a first lifting position 411, and the first lifting position 411 is used to connect with the lifting equipment 30. The lifting device frame 41 is provided with a plurality of first lifting positions 411, and the second lifting position 412 is connected with a flexible rope 42. The flexible rope 42 is connected to the formwork 10, and the plurality of flexible ropes 42 form a plurality of lifting points for the formwork assembly.

[0053] The purpose of the lifting tool 40 is to achieve multi-point lifting of the formwork assembly to prevent the formwork assembly from being deformed by force. In this solution, it is not limited to the structural form of the sling frame 41. The whole is rigid and has at least two first lifting positions 411 and several second lifting positions 412. The first lifting position 411 and the second lifting position 412 are not limited to specific structures. They can meet the requirements of hanging the flexible rope 42 and have a limiting function. Limiting means preventing the flexible rope 42 from moving in the length direction of the sling frame 41. Generally, the interval of the second lifting position 412 is consistent with the width of the suspended formwork 10, so that each formwork 10 has at least one lifting point. The formwork assembly can be connected to the sling frame 41 on both sides to maintain horizontal lifting, or it can be connected to the sling frame 41 on one side and lifted vertically during lifting.

[0054] like Figure 5 As shown, the hoist frame 41 in this solution is constructed using steel pipes of the most commonly used scaffolding on construction sites. The steel pipes are connected by cross buckles to form a rectangular frame. The connection node between the transverse steel pipe and the longitudinal steel pipe can be used as a lifting point, and only the flexible rope 42 needs to be wrapped around the connection node.

[0055] like Figure 5 As shown, in this solution, the flexible rope is a steel wire rope, and the upper end of the steel wire rope is wound around the connection node of the steel pipe, such as Figure 6 As shown, the lower end passes through the two connection holes 16 of the mold shell 10 and then passes through. Finally, the two ends of the wire rope are connected by an adjustable wire locker 43. The adjustable wire locker 43 is a standard purchased part. The connection structure of the wire rope and the adjustable wire locker 43 is as shown in FIG. Figure 7-8 As shown, the steel wire rope inserted into the adjustable wire locker 43 can only be tightened in one direction and cannot be directly pulled out. The spring of the adjustable wire locker 43 needs to be pressed to pull out the steel wire rope.

[0056] Therefore, after the completion of step 2, the sling frame 41 is hung on the hook of the lifting device 30 through the sling, and the lifting device 30 moves the sling frame 41 to the top of the formwork assembly and suspends it. The operator inserts and passes the wire rope through the two connection holes 16 of the formwork 10, and the upper end of the wire rope is wound around the connection node of the pipe. The two ends of the wire rope pass through the adjustable wire locker 43 to form a self-locking, and then Fig.10 As shown, the hoisting device 30 lifts the formwork assembly to the position where the formwork 10 needs to be installed, and lowers it onto the support structure 20 to a roughly suitable position. The worker presses the adjustable wire lock 43 to pull the wire rope out of the connection hole 16 of the formwork 10. The worker at a high position uses a wooden hammer to hit the formwork assembly to adjust the position of the first group of formwork assemblies, so that it moves to the position set in the drawing and is fixed. The hoisting device 30 hoists the next formwork assembly, such as Fig.11As shown, the second formwork assembly is hoisted using the same method as above and placed on the support structure 20. After the wire rope is pulled out, a wooden hammer is used to knock the second formwork assembly to fit the first formwork assembly that has been positioned. Then, an electric wrench is used to quickly tighten the bolts and nuts until all the formwork assemblies are hoisted. Fig.12 As shown, the connection is a whole.

[0057] In this solution, the formwork 10 is pre-assembled, and a plurality of sets of formwork components are hoisted in sequence using hoisting equipment 30 and hoisting tools 40. There is no need for workers to assemble them one by one at a height. Workers at a height only need to press the adjustable wire locker 43, pull out the wire rope, and fix the formwork components to each other. This reduces the amount of high-altitude work, improves safety, and greatly improves efficiency, meeting the requirements of modern prefabricated construction.

[0058] Embodiment 2

[0059] like Fig.13 As shown, the difference from the first embodiment is that the width of the hanger frame 41 can be set wider, so that a mold shell assembly with two or three rows of mold shells 10 can be lifted at one time.

[0060] Embodiment 3

[0061] The difference from the first embodiment is that the sling frame 41 is made of steel trusses or steel sections, which has a certain rigidity and is provided with a first lifting position 411 and a plurality of second lifting positions 412. Fig.14 As shown, the present solution uses an I-beam, and a pair of lifting rings 44 are arranged above the I-beam, and six lifting rings 44 are arranged below as a first lifting position 411 and a plurality of second lifting positions 412 respectively.

[0062] Embodiment 4

[0063] like Fig.15 As shown, the difference from Example 1 is that the wire rope can be inserted into the connecting hole 16 on one side of the mold shell 10 and pass out from the connecting hole 16 on the other side of the mold shell 10. The upper end of the wire rope is wrapped around the second lifting position 412 and connected through an adjustable wire locker 43, which can also meet the lifting requirements of the mold shell assembly.

[0064] Embodiment 5

[0065] like Fig.16 As shown, the difference from Example 1 is that the flexible rope 42 can be a sling or a sling, a threaded hole is provided on the side of the mold shell 10, and a sling ring 44 is detachably installed at the threaded hole. The sling rope or sling passes through the sling ring 44 and is hung at the second lifting position 412, which can also achieve lifting. The sling rope and sling do not need to be disassembled, and each time you only need to tighten / unscrew the sling ring 44 on the side of the mold shell 12.

[0066] In other embodiments, the mold shell 10 may adopt other connection structures as long as it can ensure that the mold shell components are connected to form a stable whole.

[0067] Embodiment 6

[0068] Another aspect of the present invention provides a dense rib formwork hoisting structure, including a formwork assembly, a hanger frame 41, and a flexible rope 42. The formwork assembly, the hanger frame 41, and the flexible rope 42 have the same structure as the first embodiment.

[0069] like Figure 1-2 As shown, the mold shell assembly is composed of a plurality of mold shells 10, the membrane shell includes a mold shell top surface 11, and the mold shell top surface 11 is connected with a mold shell side surface 12 extending downward in a circle around it, the mold shell top surface 11 and the mold shell side surface 12 enclosed therewith form a cavity 13 inside, and the lower edge of the mold shell side surface 12 continues to extend horizontally outward to form a flange edge 14, the outer contour of a circle of flange edges 14 is rectangular, and the vertical end surface of the outer edge of the flange edge 14 forms a fitting surface 15 that abuts against each other between the mold shells 10; the fitting surface 15 of the mold shell 10 is provided with a connecting hole 16, and the connecting hole 16 is horizontally arranged to pass through the cavity 13 to the fitting surface 15, and the mold shell assembly is formed by the fitting surfaces 15 of a plurality of mold shells 10 abutting against each other and fastened and connected by fasteners penetrating the connecting holes 16, and arranged in one or more rows;

[0070] like Figure 5-8 As shown, the length of the hanger frame 41 is at least close to the length of the membrane shell assembly, and the hanger frame 41 is provided with a first lifting position 411, and the first lifting position 411 is used to connect with the lifting equipment 30. The hanger frame 41 is provided with a plurality of second lifting positions 412, and the second lifting positions 412 are connected with flexible ropes 42. The flexible ropes 42 are lifted by passing through the connecting holes 16 of the mold shell 10 once or multiple times, and the multiple flexible ropes 42 form multiple lifting points for the mold shell assembly.

[0071] In practical applications, the flexible rope 42 is a steel wire rope, and the rope ends of the steel wire rope are connected by an adjustable wire locker 43 .

[0072] In summary, the assembled dense-rib formwork installation construction method and the dense-rib formwork hoisting structure described in the present invention reduce the amount of high-altitude work, improve safety, and greatly improve efficiency, meeting the requirements of modern assembled construction.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above implementation is only to illustrate the technical concept and features of the present invention, and its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A method for installing and constructing an assembled multi-ribbed formwork, characterized in that: The following steps are involved: Step 1: Setting up the required formwork (10) support structure (20); Step 2: pre-assemble the required formwork (10) on the ground or floor to form multiple sets of formwork assemblies, each set of formwork assemblies comprising a row of formwork (10) or multiple rows of formwork (10) connected as a whole; Step 3: Use the lifting equipment (30) and the lifting tools (40) to sequentially lift multiple sets of formwork components from the ground or floor to the locations where they need to be installed, and connect two adjacent sets of formwork components into a whole.

2. The method for installing and constructing an assembled multi-ribbed formwork according to claim 1, characterized in that: The mold shell (10) comprises a mold shell top surface (11), and the mold shell top surface (11) is connected to a mold shell side surface (12) extending downward around the mold shell top surface (11), and the mold shell side surface (12) enclosed therewith forms a cavity (13) inside, and the lower edge of the mold shell side surface (12) continues to extend horizontally outward to form a flange edge (14), and the outer contour of a circle of the flange edge (14) is rectangular, and the vertical end surface of the outer edge of the flange edge (14) forms a fitting surface (15) that abuts against each other between the mold shells (10); the fitting surface (15) of the mold shell (10) is provided with a connecting hole (16), and the connecting hole (16) is horizontally arranged to pass through the cavity (13) to the fitting surface (15).

3. The method for installing and constructing an assembled multi-ribbed formwork according to claim 2, characterized in that: In step two, during pre-assembly, the fitting surfaces (15) of two adjacent mold shells (10) are fitted together in sequence, and fastened together by fasteners penetrating the connection holes (16).

4. The method for installing and constructing an assembled multi-ribbed formwork according to claim 2, characterized in that: In step three, two adjacent mold shell components are fitted together and fastened together by fasteners penetrating the connection holes (16).

5. The method for installing and constructing a prefabricated multi-ribbed formwork according to claim 1, characterized in that: The lifting tool (40) comprises a lifting device frame (41) and a flexible rope (42). The lifting device frame (41) is provided with a first lifting position (411), and the first lifting position (411) is used to connect with the lifting equipment (30). The lifting device frame (41) is provided with a plurality of second lifting positions (412), and the second lifting positions (412) are connected with flexible ropes (42). The flexible ropes (42) are connected to the mold shell (10), and the plurality of flexible ropes (42) form a multi-point lifting for the mold shell assembly.

6. The method for installing and constructing a prefabricated multi-ribbed formwork according to claim 5, characterized in that: The flexible rope (42) comprises one of a steel wire rope, a sling rope and a sling.

7. The method for installing and constructing an assembled multi-ribbed formwork according to claim 6, characterized in that: The flexible rope (42) is a steel wire rope, and the steel wire rope is hoisted by passing through the connection hole (16) of the mold shell (10) once or multiple times.

8. The method for installing and constructing an assembled multi-ribbed formwork according to claim 7, characterized in that: The rope ends of the steel wire rope are connected via an adjustable wire locker (43).

9. A multi-rib formwork hoisting structure, characterized in that: It includes a mold shell assembly, a hanger frame (41), and a flexible rope (42); The mold shell assembly is composed of a plurality of mold shells (10), wherein the membrane shell includes a mold shell top surface (11), and the mold shell top surface (11) is connected to a mold shell side surface (12) extending downward in a circle around the mold shell top surface (11), and the mold shell top surface (11) and the mold shell side surface (12) enclosed therewith form a cavity (13) inside, and the lower edge of the mold shell side surface (12) continues to extend horizontally outward to form a flange edge (14), and the outer contour of a circle of flange edges (14) is rectangular, and the vertical end surface of the outer edge of the flange edge (14) forms a fitting surface (15) that abuts against each other between the mold shells (10); a connecting hole (16) is provided on the fitting surface (15) of the mold shell (10), and the connecting hole (16) is horizontally arranged to pass through the cavity (13) to the fitting surface (15), and the mold shell assembly is formed by abutting the fitting surfaces (15) of a plurality of mold shells (10), and fastening and connecting them by fasteners penetrating the connecting holes (16), and arranged in one or more rows; The length of the sling frame (41) is at least close to the length of the membrane shell assembly. The sling frame (41) is provided with a first lifting position (411), and the first lifting position (411) is used to connect with the lifting equipment (30). The sling frame (41) is provided with a plurality of second lifting positions (412), and the second lifting positions (412) are connected to flexible ropes (42). The flexible ropes (42) are lifted by passing through the connection holes (16) of the mold shell (10) once or multiple times, and the multiple flexible ropes (42) form a multi-point lifting of the mold shell assembly.

10. A multi-rib formwork hoisting structure according to claim 9, characterized in that: The flexible rope (42) is a steel wire rope, and the rope ends of the steel wire rope are connected via an adjustable wire locker (43).

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