Safe locking hook

Abstract

The utility model relates to the field of machinery, in particular to a safety locking hook. The device is provided with a ratchet wheel and a stop lever. When the hook is shaken due to vibration in an industrial environment or the pulling force changes instantly, due to the fact that the stop lever is connected with the ratchet wheel and the ratchet wheel has the one-way locking characteristic, the stop lever cannot move reversely, the position of the hook is firmly locked, the hook is prevented from falling off, and safety of mechanical operation is guaranteed. The stop lever can be suspended, the stop lever can be stopped at a certain specific middle position to adapt to different operation requirements or article hanging states, and high flexibility is achieved. The ratchet wheel structure is mainly used, the stability is better, the phenomenon that the safety clamp is prone to being damaged is effectively avoided, the spring is externally arranged in the prior art, the spring is embedded in the device and cannot be directly touched by an object although the spring is arranged in the device, and the durability is higher.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a safety locking hook. Background Art

[0002] Industrial environments often feature a large number of operating mechanical equipment, generating vibrations of high frequency and intensity. Conventional hooks are often simple suspension structures lacking effective locking mechanisms to mitigate this constant vibration. In factory assembly workshops, various power machines operate continuously, generating vibrations that are transmitted to surrounding structures and objects. When an object is mounted on a hook, the vibrations cause a slight relative displacement between the hook and the mounting point. Over time, as vibration accumulates, this displacement can gradually increase, eventually causing the hook to detach from its mounting point.

[0003] Mounted items in industrial production can be heavy and of varying shapes, with unevenly distributed centers of gravity. During vibration, the unstable swinging of the mounted items can exert irregular tensile and torsion forces on the hooks. Since conventional hooks typically have simple connections, they are unable to withstand these complex and variable forces, and are prone to deformation or loosening under these forces. For example, in metal processing workshops, large metal parts mounted on the hooks can be heavy and complex in shape. The forces generated by vibration can cause the hooks' connection points to gradually wear or become stretched, resulting in their fall.

[0004] Industrial environments are often harsh, often exposed to dust, oil, and moisture. These factors can erode the metal surface of the hook, reducing its surface roughness and friction, leading to an unstable connection between the hook and the mounting point. In chemical production plants, airborne chemicals can corrode the hook's material, weakening it and making it more susceptible to damage and fall due to vibration.

[0005] The existing lever hoist or lifting hoist and other lifting equipment hooks have a safety card in the hook head and an external spring. Due to frequent switching actions and direct contact of heavy objects with the spring structure, the screws will loosen and the internal spring structure will wear and damage quickly, causing it to be unable to fit tightly with the hook part, which will pose a great risk during operation and require frequent replacement and maintenance.

[0006] Existing technologies, such as CN105645253A, disclose a mechanical hook disengagement device. However, the opening and closing of the barrier is inconvenient. A large external force is required to overcome friction and mechanical resistance, making it difficult and inconvenient for the user. Furthermore, the barrier cannot hover. In actual use, it may be necessary to keep the barrier in a specific intermediate position to accommodate different operational requirements or item mounting conditions. Once the external force disappears, the barrier returns to its initial position or fully open or closed state due to its own gravity or the action of elastic elements such as springs. This fails to meet the user's requirement for the barrier to hover at any desired position, thus limiting the device's practicality and flexibility in complex and diverse industrial applications. Utility Model Content

[0007] The purpose of this utility model is to overcome the above problems and provide a safety locking hook. To achieve the above purpose, this utility model adopts the following technical solutions:

[0008] A safety locking hook comprises a hook, a blocking rod and a shell. The top of the blocking rod is pinned to the base of the hook. The hook is arranged on the shell. A ratchet is arranged inside the shell. The ratchet is connected to the blocking rod, and the blocking rod is locked by the ratchet.

[0009] The ratchet and lever connection structure of this utility model plays a key role. In the presence of vibration in industrial environments, even if the hook is shaken or the tension changes momentarily, the lever is connected to the ratchet and the ratchet's one-way locking feature prevents the lever from moving backward, thereby firmly locking the hook in place.

[0010] As an improvement, a first baffle and a second baffle are provided in the shell, the first baffle and the second baffle are provided below the ratchet, the first baffle and the second baffle are arranged obliquely and symmetrically, and the outer sides of the first baffle and the second baffle are connected to the inner wall of the shell through a spring.

[0011] As an improvement, a block is provided in the outer shell, and the block is provided between the first baffle and the second baffle. The plane of the block is trapezoidal, and the block rotates around the center of the block. The side of the block presses against the inner side of the first baffle, and the bottom edge of the block presses against the inner side of the second baffle. The top end of the first baffle is stuck in the teeth of the ratchet, and the second baffle is separated from the ratchet. The first baffle and the second baffle cause the ratchet to rotate in one direction.

[0012] As an improvement, a connecting column is provided on the ratchet, and the connecting column passes through the ratchet. The ratchet and the blocking rod are connected through the connecting column. A pull rod is provided on the connecting column, and the blocking rod is pulled by the pull rod.

[0013] As an improvement, a knob is provided on the housing, and the knob is connected to the stopper via a connecting rod.

[0014] As an improvement, a soft cushion is provided on the top of the pull rod.

[0015] The advantages of the present invention are:

[0016] 1. This utility model is equipped with a ratchet and a stopper. When the hook is subjected to vibrations or momentary changes in tension in an industrial environment, the stopper is connected to the ratchet and the ratchet's one-way locking feature prevents the stopper from moving in the opposite direction, thereby firmly locking the hook in place and preventing it from falling, ensuring the safety of mechanical operations.

[0017] 2. The barrier rod of the utility model can hover. In actual usage scenarios, the barrier rod can be stopped at a specific middle position to adapt to different operating requirements or item mounting states, meeting the user's requirement for the barrier piece to hover at any desired position. It has strong flexibility and broad market prospects.

[0018] 3. The utility model mainly uses a ratchet structure, which has better stability and effectively prevents the safety card from being easily damaged. In the prior art, the spring is external. Although there is a spring in this device, the spring is embedded and will not be directly touched by objects, so it has stronger durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a safety locking hook in Example 1.

[0020] Figure 2 This is a cross-sectional structural diagram of a safety locking hook in Example 1.

[0021] Figure 3 This is a front cross-sectional view of a safety locking hook in Example 1.

[0022] The symbols in the figure are:

[0023] 1. Hook; 2. Stop lever; 3. Housing; 4. Ratchet; 5. First stop plate; 6. Second stop plate; 7. Spring; 8. Stop block;

[0024] 9. Connecting column; 10. Pull rod; 11. Knob; 12. Connecting rod; 13. Cushion. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] In the description of the embodiments of the present invention, 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 utility model is usually placed when in use. It is only for the convenience of describing the utility model 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 should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0027] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0028] In the description of the embodiments of the present invention, “a plurality of” means at least 2.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] The present invention is described in detail and specifically below through specific embodiments to facilitate a better understanding of the present invention. However, the following embodiments do not limit the scope of protection of the present invention.

[0031] Example 1

[0032] This embodiment discloses a safety locking hook 1 .

[0033] like Figure 1 、 Figure 2 、 Figure 3 As shown, this embodiment includes a hook 1, a barrier rod 2, and a shell 3. The top of the barrier rod 2 is pinned to the root of the hook 1. The hook 1 is arranged on the shell 3. A ratchet 4 is provided inside the shell 3. The ratchet 4 is connected to the barrier rod 2, and the barrier rod 2 is locked by the ratchet 4.

[0034] Hook 1 is made of durable metal, its shape ergonomically and mechanically designed to facilitate easy attachment of various items. Lever 2, a key component connecting hook 1 to the ratchet 4 within housing 3, is constructed from a material that offers excellent strength and toughness. The length and thickness of lever 2 are carefully designed to ensure it resists deformation or breakage under significant tension. Lever 2 not only transmits force but also, through its connection with ratchet 4, provides a locking mechanism for hook 1.

[0035] A first baffle 5 and a second baffle 6 are provided in the housing 3 . The first baffle 5 and the second baffle 6 are provided below the ratchet 4 . The first baffle 5 and the second baffle 6 are arranged obliquely and symmetrically. The outer sides of the first baffle 5 and the second baffle 6 are connected to the inner wall of the housing 3 through a spring 7 .

[0036] In this embodiment, the first baffle 5 and the second baffle 6 are identical, and the first baffle 5 and the second baffle 6 can be transformed into each other.

[0037] The first baffle 5 and the second baffle 6 are located below the ratchet 4, arranged in an obliquely symmetrical pattern. Their outer sides are connected to the inner wall of the housing 3 via a spring 7. This connection ensures that the baffles maintain a certain position and tension under normal conditions. The top of the first baffle 5 can be locked into the teeth of the ratchet 4, ensuring the stability of the hook 1 after the item is attached.

[0038] A stopper 8 is provided inside the housing 3 and is provided between the first baffle 5 and the second baffle 6. The plane of the stopper 8 is trapezoidal. The stopper 8 rotates around the center of the stopper 8. The side of the stopper 8 abuts the inner side of the first baffle 5, and the bottom edge of the stopper 8 abuts the inner side of the second baffle 6. The top end of the first baffle 5 is stuck in the teeth of the ratchet 4, and the second baffle 6 is separated from the ratchet 4. The first baffle 5 and the second baffle cause the ratchet 4 to rotate in one direction.

[0039] Stopper 8 is positioned between first baffle 5 and second baffle 6. Its planar shape is trapezoidal and allows it to rotate about its own center. Its side edges abut the inside of first baffle 5, while its bottom edge abuts the inside of second baffle 6. Its unique shape and position coordinate the movement of first baffle 5 and second baffle 6, restricting ratchet 4 to unidirectional rotation and further enhancing the locking reliability of hook 1.

[0040] A connecting column 9 is provided on the ratchet 4 , and the connecting column 9 passes through the ratchet 4 . The ratchet 4 is connected to the blocking rod 2 through the connecting column 9 . A pull rod 10 is provided on the connecting column 9 , and the blocking rod 2 is pulled by the pull rod 10 .

[0041] The structure of the first baffle 5, the second baffle 6, the ratchet 4, and the block 8 can stop the baffle 2 at a specific middle position to adapt to different operating requirements or item mounting states, meet the user's requirement for the baffle to hover at any desired position, and has strong flexibility.

[0042] A knob 11 is provided on the housing 3 , and the knob 11 is connected to the stopper 8 via a connecting rod 12 .

[0043] The knob 11 is mounted on the housing 3 and connected to the stopper 8 via a connecting rod 12. By rotating the knob 11, the rotation of the stopper 8 can be controlled, thereby changing the state of the first baffle 5 and the second baffle 6, thereby controlling the locking function of the ratchet 4, that is, achieving the locking and unlocking operations of the hook 1.

[0044] Knob 11 is used to adjust ratchet 4. It can be rotated in both directions. When knob 11 is rotated forward, it drives stopper 8 to rotate via connecting rod 12 connected to knob 11. When knob 11 is rotated backward, stopper 8 rotates in the opposite direction, again changing the state of first stopper 5 and second stopper 6. Spring 7 allows first stopper 5 to reengage the teeth of ratchet 4, restoring the locking restriction on ratchet 4. By rotating knob 11 in both directions, the locking and unlocking states of ratchet 4 can be flexibly and precisely controlled, meeting the operational requirements of hook 1 in different usage scenarios and significantly improving the practicality and reliability of the safety locking hook 1.

[0045] A cushion 13 is provided on the top of the pull rod 10 .

[0046] The soft pad 13 is arranged on the top of the pull rod 10 to provide a comfortable feel when operating the pull rod 10 , and also to play a certain buffering role to avoid discomfort or injury to the user when pulling the pull rod 10 .

[0047] This embodiment can be used to suspend various tools, small parts, measuring tools, etc., preventing them from falling due to accidental collisions or vibrations during work, thereby avoiding damage to production equipment or safety threats to operators. The present invention mainly uses a ratchet 4 structure, which has better stability. Although the device includes a spring 7, the spring 7 is embedded and cannot be directly touched by objects, which provides greater durability.

[0048] The above detailed description of the specific embodiments of the present invention is intended to serve only as examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention are intended to be encompassed within the scope of the present invention.

Claims

1. A safety locking hook, characterized in that: The invention comprises a hook (1), a blocking rod (2), and a shell (3); the top of the blocking rod (2) is pin-connected to the root of the hook (1); the hook (1) is arranged on the shell (3); a ratchet (4) is arranged inside the shell (3); the ratchet (4) is connected to the blocking rod (2), and the blocking rod (2) is locked by the ratchet (4).

2. A safety locking hook according to claim 1, characterized in that: A first baffle (5) and a second baffle (6) are provided in the housing (3). The first baffle (5) and the second baffle (6) are provided below the ratchet (4). The first baffle (5) and the second baffle (6) are arranged obliquely and symmetrically. The outer sides of the first baffle (5) and the second baffle (6) are connected to the inner wall of the housing (3) via a spring (7).

3. A safety locking hook according to claim 2, characterized in that: A stopper (8) is provided in the housing (3), and the stopper (8) is provided between the first baffle (5) and the second baffle (6). The plane of the stopper (8) is trapezoidal, and the stopper (8) rotates around the center of the stopper (8). The side of the stopper (8) abuts against the inner side of the first baffle (5), and the bottom of the stopper (8) abuts against the inner side of the second baffle (6). The top end of the first baffle (5) is stuck in the teeth of the ratchet (4), and the second baffle (6) is separated from the ratchet (4). The first baffle (5) and the second baffle enable the ratchet (4) to rotate in one direction.

4. A safety locking hook according to claim 3, characterized in that: The ratchet (4) is provided with a connecting column (9), the connecting column (9) passes through the ratchet (4), the ratchet (4) and the blocking rod (2) are connected through the connecting column (9), and the connecting column (9) is provided with a pull rod (10), and the blocking rod (2) is pulled by the pull rod (10).

5. A safety locking hook according to claim 4, characterized in that: The housing (3) is provided with a knob (11), and the knob (11) is connected to the stopper (8) via a connecting rod (12).

6. A safety locking hook according to claim 5, characterized in that: A soft pad (13) is provided on the top of the pull rod (10).

Images