Safety hook for scaffold

Abstract

The utility model discloses a safety hook for a scaffold, which comprises a positioning plate provided with an arc-shaped groove body for accommodating a scaffold steel pipe; the mousing hook comprises a connecting rod and a hook body, the two ends of the connecting rod are connected with the hook body and the positioning plate respectively, a gap for a scaffold steel pipe to pass through is formed between the hook body and the positioning plate, and the positioning plate is parallel to the hook body. The safety hook for the scaffold can be positioned on a scaffold steel pipe, and operators can climb at high altitude conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of high-altitude operation safety tools, in particular to a safety hook for a scaffold. Background Art

[0002] Scaffolding is an essential and important facility in the construction process, providing workers with a safe working platform and passage. However, with the continuous expansion of project scale and the increase in working height, the safety protection requirements for workers are also becoming increasingly stringent.

[0003] Traditional safety belt hooks often use a simple buckle design. Although it can meet safety requirements to a certain extent, it has many shortcomings in connecting with the scaffolding.

[0004] After searching, the utility model patent with announcement number CN207253596U discloses a high-altitude safety belt, which includes a hook, a safety rope and a buffer. The two ends of the safety rope are respectively connected to two hooks, and the buffer is connected in the middle of the safety rope. The hook includes a hook body, a locking rod and a push rod. The locking rod is hinged at the opening of the hook body. A sliding rod is provided at the end of the locking rod. The sliding rod slides inside the locking rod. One end of the push rod is rotatably connected to the sliding rod, and the other end is rotatably connected to the hook body. A compression spring is provided between the push rod and the hook body. When hanging, under the action of the push rod, the sliding rod retracts downward, and the opening of the hook body increases, which is convenient for hanging. After the hanging is completed, under the action of the compression spring, the push rod pushes the sliding rod upward, and the opening of the hook body is locked. After the opening is locked, since the push rod and the locking rod are close to vertical, the force arm of the locking rod pushing the push rod to rotate is reduced, which effectively prevents the hook body opening from being opened by mistake.

[0005] The above technical solution has at least the following technical problems during its specific implementation:

[0006] 1. Working on scaffolding often requires climbing. The weight of the hook itself will cause the safety rope and the hook as a whole to fall, which will affect the user's climbing and cause a work burden on the user.

[0007] 2. The compression spring requires a large stroke when opening the hook. After long-term use, the closing effect of the hook will be poor, which may easily cause the hook to fall off. Utility Model Content

[0008] In order to solve the problems of burden on users and safety in use in the prior art, the present application provides a safety hook for scaffolding.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: a safety hook for scaffolding, comprising: a positioning plate, the positioning plate having an arc-shaped groove for accommodating a scaffolding steel pipe; an anti-detachment hook, the anti-detachment hook comprising a connecting rod and a hook body, the two ends of the connecting rod being respectively connected to the hook body and the positioning plate, a gap for the scaffolding steel pipe to pass through is formed between the hook body and the positioning plate, and the positioning plate and the hook body are parallel to each other.

[0010] In some embodiments of the present invention, a clamping mechanism is provided on the above-mentioned positioning plate, and the clamping mechanism includes a driving plate, a rotating shaft, a driving spring and a clamping head. The rotating shaft is provided on the positioning plate, and the driving plate is rotatably provided on the rotating shaft. The driving spring is used to drive the driving plate to rotate around the rotating shaft. The clamping head is provided on the driving plate, and the driving plate can drive the clamping head to abut against the outer wall of the scaffolding steel pipe.

[0011] In some embodiments of the present invention, the driving spring is a torsion spring, and the spring legs at both ends of the torsion spring are respectively in contact with the connecting rod and the driving plate.

[0012] In some embodiments of the present invention, a gripping handle is provided on the positioning plate.

[0013] In some embodiments of the present invention, the grip handle is provided with an arc-shaped chamfered structure.

[0014] In some embodiments of the present invention, the gripping handle and the positioning plate are integrally formed.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0016] The embodiment of the present application provides a safety hook for scaffolding, comprising: a positioning plate, the positioning plate having an arc-shaped groove for accommodating a scaffolding steel pipe; an anti-detachment hook, the anti-detachment hook comprising a connecting rod and a hook body, the two ends of the connecting rod being respectively connected to the hook body and the positioning plate, a gap for the scaffolding steel pipe to pass through is formed between the hook body and the positioning plate, and the positioning plate and the hook body are parallel to each other. The positioning plate is used to position the safety hook at a fixed point of the scaffolding steel pipe, and the bottom of the arc-shaped groove is attached to the outer wall of the clamped steel pipe. The anti-detachment hook is used to cooperate with the positioning plate to clamp the scaffolding steel pipe. Under the positioning action of the positioning plate, the steel pipe is clamped in the center through the action of the hook body arranged opposite to the arc-shaped groove, so that the user can move the safety hook horizontally and vertically. The gap is used to pass the scaffolding steel pipe when using the safety hook.

[0017] Therefore, the scaffolding safety hook can be positioned on the scaffolding steel pipe, making it convenient for operators to climb and operate at high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the use of an embodiment of the utility model;

[0022] Figure 4 It is a side view of an embodiment of the present utility model.

[0023] In the figure: 1-positioning plate; 2-arc-shaped groove body; 3-connecting rod; 4-hook body; 5-driving plate; 6-rotating shaft; 7-driving spring; 8-clamping head; 9-gripping handle; 10-arc-shaped chamfer structure; 12-gap. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0029] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] Example 1:

[0031] Please refer to Figure 1-Figure 4 This embodiment provides a safety hook for a scaffold, comprising: a positioning plate 1, the positioning plate 1 having an arc-shaped groove 2 for accommodating a scaffolding steel pipe; an anti-detachment hook, the anti-detachment hook comprising a connecting rod 3 and a hook body 4, the two ends of the connecting rod 3 being connected to the hook body 4 and the positioning plate 1 respectively, a gap 12 for the scaffolding steel pipe to pass through is formed between the hook body and the positioning plate 1, and the positioning plate 1 and the hook body 4 are parallel to each other.

[0032] It should be noted that the above-mentioned positioning plate 1 and anti-disconnection hook are both U-shaped structures. In this embodiment, the above-mentioned positioning plate 1 is used to position the safety hook at the fixed point of the scaffolding steel pipe. The inner diameter of the arc-shaped trough body 2 is equal to the outer diameter of the scaffolding steel pipe, and the bottom of the above-mentioned arc-shaped trough body 2 is attached to the outer wall of the clamped steel pipe.

[0033] In this embodiment, the anti-drop hook is used to cooperate with the positioning plate 1 to clamp the scaffolding steel pipe. Under the positioning effect of the positioning plate 1, the hook body arranged opposite the arc-shaped notch acts to centrally clamp the steel pipe, allowing the user to move the safety hook horizontally and vertically. The gap 12 is used to pass the scaffolding steel pipe when the safety hook is in use.

[0034] Please refer to Figure 1-Figure 4 In some implementations of this embodiment, a clamping mechanism is provided on the positioning plate 1, and the clamping mechanism includes a driving plate 5, a rotating shaft 6, a driving spring 7 and a clamping head 8. The rotating shaft 6 is provided on the positioning plate 1, and the driving plate 5 is rotatably provided on the rotating shaft 6. The driving spring 7 is used to drive the driving plate 5 to rotate around the rotating shaft 6. The clamping head 8 is provided on the driving plate 5, and the driving plate 5 can drive the clamping head 8 to abut against the outer wall of the scaffolding steel pipe.

[0035] In this embodiment, the clamping mechanism is used to secure the positioning plate 1, thereby securing the entire safety hook to the outer wall of the scaffolding steel pipe. The drive plate 5 is rotatable about the rotating shaft 6, and the drive spring 7 is used to press the clamping head 8 at the top of the drive plate 5 against the outer wall of the scaffolding steel pipe, thereby securing the entire safety rope hook to the scaffolding. This facilitates the securing of the safety rope for workers on the scaffolding and facilitates high-altitude operations. The clamping head 8 is used to adhere tightly to the outer wall of the steel pipe under the thrust of the drive spring 7, increasing the friction between the safety hook and the outer wall of the steel pipe by increasing pressure, thereby improving the stability of the fixation.

[0036] Please refer to Figure 1-Figure 4 In some implementations of this embodiment, the driving spring 7 is a torsion spring, and the spring legs at both ends of the torsion spring are respectively in contact with the connecting rod 3 and the driving plate 5.

[0037] In this embodiment, the drive spring 7 is a torsion spring. A torsion spring, also known as a torque spring, is a special type of spring that utilizes the principle of leverage to twist or rotate a soft, resilient elastic material, thereby generating significant mechanical energy. A torsion spring is typically formed by bending a circular cross-section wire, with one end fixed and the other end capable of instantaneous rotation. Its operating principle is to store or release energy through elastic deformation. During operation, it is not in a compressed state, but rather utilizes torsion to store and release energy. The use of a torsion spring facilitates the rotation of the clamping head 8 of the drive plate 5, which is tightly attached to the outer wall of the clamped steel pipe, thereby enhancing the stability of the fixation.

[0038] Please refer to Figure 1 、 Figure 3 and Figure 4 In some implementations of this embodiment, a gripping handle 9 is provided on the positioning plate 1 .

[0039] In this embodiment, the gripping handle 9 is used for the aerial workers to hold the entire safety hook, so as to facilitate the movement of the safety hook when climbing and prevent the safety hook from automatically falling and affecting the movement of the workers.

[0040] Please refer to Figure 1 、 Figure 3 and Figure 4 In some implementations of this embodiment, an arc-shaped chamfered structure 10 is provided on the gripping handle 9 .

[0041] In this embodiment, the arc-shaped inverted structure makes the edge of the grip handle 9 more rounded, reducing friction and pressure with the palm, thereby providing a more comfortable grip experience. In particular, the arc-shaped inverted structure can effectively reduce palm fatigue during long-term use or high-intensity operation.

[0042] Please refer to Figure 1 、 Figure 3 and Figure 4 In some implementations of this embodiment, the holding handle 9 and the positioning plate 1 are integrally formed.

[0043] In this embodiment, one-piece molding is a highly efficient manufacturing process, combining multiple parts through a single machining or casting process to create a complete object. This technology reduces the number of parts and assembly time during the manufacturing process, thereby improving efficiency and reducing costs. The one-piece molding process utilizes molds to directly form the part, avoiding the errors and deformation that can occur during traditional machining processes, thereby significantly improving product precision and quality.

[0044] When in use, when the safety hook is moved vertically, the positioning plate 1 is made vertically parallel to the steel pipe to be clamped, the gap 12 between the hook body and the positioning plate 1 is aligned with the steel pipe to be clamped, the steel pipe is abutted against the connecting rod 3, the positioning plate 1 is rotated perpendicular to the steel pipe to be clamped, the arc-shaped groove 2 and the hook body are respectively attached to the two sides of the steel pipe, a first clamping point is formed between the positioning plate 1 and the steel pipe, and a second clamping point is formed between the hook body and the steel pipe. Due to the counterweight effect formed by the gripping handle 9, the first clamping point serves as a fulcrum, so that the second clamping point is tightly attached to the outer wall of the steel pipe. The clamping head 8 and the steel pipe are separated by pressing the driving plate 5 by hand, and then the steel pipe is driven by hand to slide in the direction of the central axis of the positioning plate 1 and the central axis of the hook body. When the safety hook is moved horizontally, the safety hook is placed on the outer wall of the steel pipe. The gripping handle 9 will fall due to its own gravity, the hook body is hung on the steel pipe, and the positioning plate 1 is located below the steel pipe. The position of the safety hook on the steel pipe can be adjusted by the clamping mechanism.

[0045] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A safety hook for scaffolding, characterized in that: include: A positioning plate (1), wherein the positioning plate (1) has an arc-shaped groove (2) for accommodating a scaffolding steel pipe; An anti-detachment hook comprises a connecting rod (3) and a hook body (4), the two ends of the connecting rod (3) are respectively connected to the hook body and the positioning plate (1), a gap (12) for a scaffolding steel pipe to pass through is formed between the hook body and the positioning plate (1), and the positioning plate (1) and the hook body are parallel to each other.

2. A safety hook for scaffolding according to claim 1, characterized in that: The positioning plate (1) is provided with a clamping mechanism, which comprises a driving plate (5), a rotating shaft (6), a driving spring (7) and a clamping head (8). The rotating shaft (6) is provided on the positioning plate (1), the driving plate (5) is rotatably provided on the rotating shaft (6), the driving spring (7) is used to drive the driving plate (5) to rotate around the rotating shaft (6), the clamping head (8) is provided on the driving plate (5), and the driving plate (5) can drive the clamping head (8) to abut against the outer wall of the scaffolding steel pipe.

3. A safety hook for scaffolding according to claim 2, characterized in that: The driving spring (7) is a torsion spring, and the spring legs at both ends of the torsion spring abut against the connecting rod (3) and the driving plate (5) respectively.

4. A safety hook for scaffolding according to claim 1, characterized in that: A gripping handle (9) is provided on the positioning plate (1).

5. A safety hook for scaffolding according to claim 4, characterized in that: The gripping handle (9) is provided with an arc-shaped chamfered structure (10).

6. A safety hook for scaffolding according to claim 4, characterized in that: The holding handle (9) and the positioning plate (1) are integrally formed.

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