Telescopic safety mother rope mounting rack

Abstract

The utility model relates to the field of bridge construction engineering safety devices, in particular to a telescopic safety mother rope mounting frame. In a bridge construction project, a welding worker needs to weld a reinforcement cage on a scaffold and needs to fix the reinforcement cage with a safety rope, and hoisting operation is accompanied before and after the welding procedure. During hoisting, collision between the reinforcement cage and a safety mother rope mounting frame needs to be avoided, but the size of the reinforcement cage is not fixed, so that the positions of the safety mother rope and the mounting frame need to be adjusted frequently to avoid position conflicts. According to the safety mother rope mounting rack capable of rapidly adjusting the mounting position and size, the mounting rack is provided with two groups of inserting structures in the vertical direction and the horizontal direction respectively, so that the lifting and falling of the safety mother rope mounting rack can be controlled under the condition that the safety mother rope mounting rack is not disassembled; the hanging position of the safety mother rope is changed according to the position and the size of the reinforcement cage, and collision with the reinforcement cage or blocking on welding action is avoided.

Description

Technical Field

[0001] The utility model relates to the field of safety devices for bridge construction projects, in particular to a retractable safety mother rope installation frame. Background Art

[0002] During bridge construction, welders often weld rebar cages onto scaffolding. These welders are secured with safety ropes, and the welding process is often preceded and followed by hoisting operations. The rebar cage is a three-dimensional structure composed of multiple circularly arranged main steel bars, surrounded by closed-loop reinforcing ribs. The main and reinforcing bars are welded together. During hoisting, collisions between the cage and the safety rope mounting bracket must be avoided. However, due to the variable size of the cage, the safety rope and mounting bracket must be frequently adjusted to avoid conflicts.

[0003] Chinese patent CN215055557U discloses a detachable steel structure safety rope fixing device, the main body of which is an L-shaped vertical pole, a base plate, and a C-shaped steel plate formed by welding vertical and horizontal poles. Among them, a hexagonal nut is welded to the end of the horizontal part of the L-shaped vertical pole to fix the safety rope; the vertical part is inserted into a hollow steel tube perpendicular to the base plate, and the vertical pole and the hollow steel tube are reinforced by radial bolts; the upper surface of the C-shaped steel plate is close to the bottom of the upper flange plate of the I-beam, and the C-shaped steel plate and the base clamp the upper wing of the I-beam and fix it therein, and bolts are used to strengthen the fixation. This patent takes into account the detachability and stability of the structure, but its disassembly structure only matches the I-beam, and can only realize the overall position movement of the safety mother rope mounting frame without changing the size. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a safety mother rope installation frame that can quickly adjust the installation position and size, so as to solve the position adjustment problem of the safety mother rope and the installation frame raised in the background problem.

[0005] The utility model is achieved through the following technical solutions:

[0006] A retractable safety mother rope mounting frame, characterized by comprising:

[0007] Base sleeve, vertical rod, horizontal rod, telescopic rod;

[0008] The vertical rod is inserted into the base sleeve, and a first adjustment component is provided at the insertion position to adjust the relative position;

[0009] The telescopic rod is plugged into the cross bar, and a second adjustment component is provided at the plugging position to adjust the relative position.

[0010] Preferably, the base sleeve has a limiting inner contour with a rectangular cross-section.

[0011] Preferably, the vertical rod is a solid rod.

[0012] Preferably, a first limit portion is provided within the wall of the base sleeve, a slot is provided on the surface of the vertical rod, and the first adjustment assembly includes a connected adjustment handle and a latch block; the adjustment handle drives the latch block to slide within the first limit portion and the slot. Optionally, each latch block corresponds to an independent adjustment handle, or multiple latch blocks share a single adjustment handle.

[0013] Further preferably, the surface of the slot is in close contact with the latch block. Preferably, the first limiting portion is provided with an inner shoulder at one end proximate to the inner surface of the base sleeve and an outer shoulder at one end proximate to the outer surface of the base sleeve. The first adjustment assembly further includes a first limiting plate connected to the latch block. The vertical height of the first limiting plate is greater than the spacing between the inner shoulders. The range of motion of the first limiting plate is limited within the first limiting portion. Further preferably, the height of the first limiting plate precisely matches the height of the first limiting portion.

[0014] Preferably, the first adjustment component further includes a first spring, the first spring is sleeved on the latch block, and two ends of the first spring are respectively connected to the first limiting plate and the outer boss.

[0015] Preferably, the second adjustment assembly includes a second spring, a second limit plate, a protrusion, and a second limit portion that are connected to each other. The inner side of the second limit plate is connected to the second spring, and the outer side is connected to the protrusion. The second limit plate drives the protrusion to move with a telescopic trajectory, and the telescopic direction of the second spring in the second limit portion constitutes the telescopic trajectory.

[0016] Further preferably, a plurality of locking holes are provided on the surface of the cross bar, and the size of the protrusions can just match the aperture of the locking holes.

[0017] Preferably, a pair of blocks are provided at the plug-in end of the crossbar, and the blocks are in close contact with the side walls of the telescopic rod; and a boss is provided at the plug-in end of the telescopic rod, and the boss is in close contact with the inner wall of the crossbar.

[0018] Preferably, the base sleeve, vertical rod, horizontal rod and telescopic rod are all made of metal, and the surface is provided with a zinc coating.

[0019] The utility model has the following beneficial effects:

[0020] Compared with the existing technology, this mounting frame can control the lifting and lowering of the safety mother rope mounting frame without dismantling it by setting two sets of plug-in structures in the vertical and horizontal directions respectively, and change the hanging position of the safety mother rope according to the position and size of the steel cage to avoid collision with the steel cage or obstruction of the welding action. Springs, limit plates, limit parts and other structures are set at the plug-in point. The spring provides locking force and can naturally maintain the locked state after installation without the introduction of additional fasteners and loading and unloading operations. The first adjustment component is added with a handle, which is convenient and quick to operate; the card slot and the pin block contour are embedded to prevent the component from shaking. The plug-in parts of the cross bar and the telescopic rod are respectively provided with blocks and bosses. On the one hand, the limiting relationship prevents the telescopic rod from slipping out of the cross bar, and on the other hand, it provides additional support force for the telescopic rod that suspends the safety rope.

[0021] To ensure the proper function of the safety rope mounting bracket, the base sleeve features a rectangular inner profile, restricting any relative sliding or rotation between the base sleeve and the scaffolding steel or round steel. Constructed entirely of hard metal, the bracket features a zinc coating to prevent rust and breakage in high-humidity bridge construction environments such as mountainous areas and waterways. The vertical rods are solid to accommodate the bracket's counterweight, ensuring stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the vertical adjustment structure of the utility model;

[0024] Figure 3 For the above Figure 2 An enlarged view of the structure of area A, used to show the first regulating component;

[0025] Figure 4 This is a schematic diagram of the horizontal adjustment structure of the utility model.

[0026] Legend:

[0027] 1. Base sleeve; 1.1. First limiting portion; 1.11. Inner shoulder; 1.12. Outer shoulder;

[0028] 2. First adjustment assembly; 2.1. Adjustment handle; 2.2. Latch block; 2.3. First limit plate; 2.4. First spring;

[0029] 3. Vertical rod; 3.1. Card slot;

[0030] 4. Crossbar; 4.1. Locking hole; 4.2. Stopper;

[0031] 5. Telescopic rod; 5.1. Rope hole; 5.2. Second adjustment assembly; 5.21. Second spring; 5.22. Second limit plate; 5.23. Protrusion; 5.24. Second limit portion; 5.3. Boss;

[0032] 6. Clamp. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Based on these descriptions, a person skilled in the art will be able to implement the present invention. Furthermore, the embodiments of the present invention described below generally represent only a portion of the present invention, rather than all of the embodiments. Therefore, all other embodiments derived by a person skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are merely simplified descriptions for the convenience of describing the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] Example:

[0037] See also Figure 1 A retractable safety mother rope mounting bracket is constructed entirely of metal with a zinc coating. A single mounting bracket secures a rectangular base sleeve 1 to a scaffold using a clamp 6. After multiple mounting brackets are installed, the safety mother rope passes through a rope threading hole 5.1 and is suspended between the brackets.

[0038] See also Figure 2 and Figure 3The vertical rod 3 is a solid metal rod with a slot 3.1 on the surface. The lower end of the vertical rod 3 is inserted into the hollow base sleeve 1. A first limiting portion 1.1 is provided inside the wall of the base sleeve 1, and an inner boss and an outer boss are provided at both ends. The first adjustment component 2 is used to adjust the relative position of the vertical rod 3 and the base sleeve 1. The first adjustment component 2 includes an adjusting handle 2.1 and a latch block 2.2, and in a preferred embodiment, also includes a first limiting plate 2.3 and a first spring 2.4. A latch block 2.2 is connected to each end of the handle 2.1, and the outer side of the latch block 2.2 is sleeved with the first limiting plate 2.3 and the first spring 2.4. The height of the first limiting plate 2.3 is adapted to the height of the first limiting portion 1.1, and the two ends of the first spring 2.4 are connected to the limiting plate 2.3 and the outer boss 1.12. Driven by the handle 2.1, the latch block 2.2 slides within the channel formed by the slot 3.1 and the first stopper 1.1. The first spring 2.4 compresses when sliding outward and rebounds when sliding inward. The first stopper plate 2.3 vertically engages the first stopper to prevent the latch block 2.2 from shaking during sliding. Horizontally, the inner and outer shoulders 1.11, 1.12 prevent the latch block 2.2 from separating from the first stopper 1.1.

[0039] See also Figure 4 , the telescopic rod 5 is inserted into the cross bar 4. A second adjustment assembly 5.2 is provided on the telescopic rod 5. The second adjustment assembly 5.2 includes a second limiting portion 5.24, a second spring 5.21, a second limiting plate 5.22 and a protrusion 5.23 connected thereto, which are located inside the telescopic rod 5. The second limiting portion 5.24 has a raised edge. In the locked state, the second limiting plate 5.22 is continuously pushed outward by the second spring 5.21 and blocked by the edge of the second limiting portion 5.24. The protrusion 5.22 connected to the second limiting plate is able to stably fit into the locking hole 4.1. In a more preferred embodiment, the size of the protrusion 5.23 is adapted to the aperture size of the locking hole 4.1. When the protrusion 5.22 is pressed by an external force, it returns to the interior of the telescopic rod 5 along the contraction direction of the second spring 5.21. At this time, the telescopic rod 5 can slide radially in the cross bar 4. The plug-in end of the crossbar 4 has a stopper 4.2, and the plug-in end of the telescopic rod 5 has a boss 5.3. These two blocks not only support the telescopic rod 5 so that it does not wobble when the rope threading hole 5.1 is loaded, but also prevent the telescopic rod 5 from slipping out of the crossbar 4. In a preferred embodiment, the mass of the boss can be adjusted to improve the weight balance of the crossbar 4 and the telescopic rod 5.

[0040] During the initial installation, first install the base sleeve 1. Fit the base sleeve 1 against the side wall of the scaffolding, pass the fasteners through the clamp 6 and tighten. Next, install the vertical rod 3. Pull the adjustment handle 2.1 outward, and the latch block 2.2 slides outward and retracts into the first limit portion 1.1. At this time, the vertical rod 3 can be inserted into the base sleeve 1; after determining the approximate installation position, release the adjustment handle 2.1. At this time, the first spring 2.4 is compressed to the shortest, applying a continuous inward thrust to the first limit plate 2.3; continue to adjust the precise installation position. When the slot 3.1 is aligned with the first limit portion 1.1, the first spring 2.4 rebounds, pushing the first limit plate 2.3 and the latch block 2.2 into the slot, and the installation of the vertical rod 3 is completed. Then adjust the telescopic rod 5. In the initial state, all parts of the telescopic rod 5 except the rope hole 5.1 are accommodated in the cross bar 4. Continue pressing the projection 5.23 until it retracts into the second stop 5.24 inside the telescopic rod 5. This compresses the second spring 5.21 to its minimum length, exerting a continuous outward force on the projection 5.23. Pull the telescopic rod 5 outward until it reaches the desired position. When the projection 5.23 aligns with the locking hole 4.1, the second spring 5.21 rebounds, pushing the projection 5.23 into the locking hole 4.1, locking it. Adjustment of the telescopic rod 5 is complete. Finally, the construction worker can thread the safety rope through the rope threading hole 5.1 to complete the safety rope installation.

[0041] To facilitate single-person operation, only one first adjustment assembly 2 is provided in this embodiment. To adjust the vertical height of the mounting frame, the operator does not need to remove the base sleeve 1. Instead, they simply pull the adjustment handle 2.1 outward with one hand, raise or lower the vertical rod 3 with the other hand to the desired position, and then release the adjustment handle 2.1. To adjust the horizontal length of the mounting frame, the operator first presses the protrusion 5.22 to fully retract it into the second stop 5.24, then slides the telescopic rod 5 horizontally to adjust its position. When the locking hole 4.1 is properly positioned, the protrusion 5.22 automatically pops out, locking the relative position of the crossbar 4 and telescopic rod 5.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A retractable safety mother rope mounting frame, characterized in that: The invention comprises: a base sleeve (1), a vertical rod (3), a horizontal rod (4), and a telescopic rod (5); the vertical rod (3) is plugged into the base sleeve (1), and a first adjustment component (2) is provided at the plugging position to adjust the relative position of the two; the telescopic rod (5) is plugged into the horizontal rod (4), and a second adjustment component (5.2) is provided at the plugging position to adjust the relative position of the two.

2. The safety mother rope installation frame according to claim 1, characterized in that: The base sleeve (1) has a limiting inner contour with a rectangular cross-section.

3. The safety mother rope installation frame according to claim 1, characterized in that: A first limiting portion (1.1) is provided inside the wall of the base sleeve (1); a clamping groove (3.1) is provided on the surface of the vertical rod (3); and the first adjustment component (2) comprises an adjustment handle (2.1) and a latch block (2.2) connected to each other; the adjustment handle (2.1) drives the latch block (2.2) to slide in the first limiting portion (1.1) and the clamping groove (3.1).

4. The safety mother rope installation frame according to claim 3, characterized in that: The surface of the card slot (3.1) is in close contact with the latch block (2.2).

5. The safety mother rope installation frame according to claim 3, characterized in that: The first limiting portion (1.1) is provided with an inner convex shoulder (1.11) at one end close to the inner surface of the base sleeve (1), and an outer convex shoulder (1.12) at one end close to the outer surface of the base sleeve (1); the first adjustment component (2) further comprises a first limiting plate (2.3) connected to the latch block (2.2); the vertical height of the first limiting plate (2.3) is greater than the spacing between the inner convex shoulders (1.11), and the movement range of the first limiting plate (2.3) is limited to the interior of the first limiting portion (1.1).

6. The safety mother rope installation frame according to claim 5, characterized in that: The first adjustment component (2) further comprises a first spring (2.4), the first spring (2.4) being sleeved on the latch block (2.2), and the two ends of the first spring (2.4) being respectively connected to the first limit plate (2.3) and the outer boss (1.12).

7. The safety mother rope installation frame according to claim 1, characterized in that: The second adjustment assembly (5.2) comprises a second spring (5.21), a second limiting plate (5.22), a protrusion (5.23), and a second limiting portion (5.24) that are connected to each other. The inner side surface of the second limiting plate (5.22) is connected to the second spring (5.21), and the outer side surface is connected to the protrusion (5.23). The second limiting plate (5.22) drives the protrusion to move along a telescopic trajectory. The telescopic direction of the second spring (5.21) within the second limiting portion (5.24) constitutes the telescopic trajectory.

8. The safety mother rope installation frame according to claim 7, characterized in that: The surface of the crossbar (4) is provided with a plurality of locking holes (4.1), and the size of the protrusion (5.23) is just adapted to the aperture of the locking holes (4.1).

9. The safety mother rope installation frame according to claim 7, characterized in that: The plug-in end of the crossbar (4) is provided with a pair of blocks (4.2), and the blocks (4.2) are in close contact with the side walls of the telescopic rod (5); the plug-in end of the telescopic rod (5) is provided with a boss (5.3), and the boss (5.3) is in close contact with the inner wall of the crossbar (4).

10. The safety mother rope installation frame according to claim 1, characterized in that: The base sleeve (1), the vertical rod (3), the horizontal rod (4) and the telescopic rod (5) are all made of hard metal materials, and their surfaces are all provided with a zinc coating.

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