Anti-falling mechanism of lower lifting hook

Abstract

The utility model relates to the technical field of lifting hooks, in particular to an anti-falling mechanism of a lower lifting hook. According to the technical scheme, the lifting hook comprises a lifting hook body and a lock catch rotationally installed on the lifting hook body, and further comprises an insertion hole formed in the lifting hook body, and a clamping hole communicated with the insertion hole is formed in the insertion hole; the locking mechanism is arranged in the lock catch and can be clamped by the insertion hole by rotating in the direction of the clamping hole; and the switch mechanism is arranged on the lock catch and is used for releasing the clamped lock catch through manual pressing. According to the lifting hook, the insertion hole, the clamping hole, the locking mechanism, the switching mechanism and other structures are matched, the lock catch arranged on the lifting hook can be automatically locked by pressing and attaching the lock catch to the outer wall of the lifting hook, the situation that the lock catch needs to be continuously pressed when the lifting hook is taken down from goods is avoided, and by means of the operation mode, fatigue and aching pain of hands are relieved; and the working comfort is improved. And meanwhile, an automatic locking mechanism reduces attention decline caused by hand fatigue, and the possibility of misoperation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, in particular to an anti-falling mechanism for a lower hook. Background Art

[0002] A lower hook usually refers to a hook used directly for lifting operations, and an eye hook is a type of lower hook. The eye hook is characterized by a circular eyelet on the hook body, which can be easily connected to a chain, wire rope or other lifting equipment. The hook is usually equipped with a lock to prevent the hoisted objects from accidentally falling off during the lifting process, thereby enhancing safety. Traditionally, when opening the lock to remove the hook from the cargo, it is usually necessary to manually apply a pressing force until it is removed from the hoisted cargo. However, the weight of the hook is generally heavy, and it is necessary to press the hook while removing it from the cargo. This operation method will easily cause fatigue and soreness in the hands, which in turn will lead to a decrease in the operator's concentration and increase the risk of operational errors, such as misoperation of the hook or causing the cargo to fall off. Utility Model Content

[0003] The purpose of the utility model is to propose an anti-falling mechanism for the lower hook to address the problem that in the traditional method of opening the lock and removing the hook from the cargo, a pressing force usually needs to be applied manually. This operation method will easily make the hands tired and sore, which will lead to a decrease in the operator's concentration and an increased risk of operational errors, such as misoperation of the hook or causing the cargo to fall off.

[0004] The technical solution of the utility model is as follows: an anti-slip mechanism for a lower hook, comprising a hook and a lock buckle rotatably mounted on the hook, and further comprising: a socket provided on the hook, a connected latch hole provided inside the socket; a locking mechanism provided in the latch hole so as to be latched by the socket when rotated in the direction of the latch hole; and a switch mechanism mounted on the latch for releasing the latch by manual pressing.

[0005] Optionally, the locking mechanism includes a fixed sleeve rod fixedly connected to the lock buckle, a pair of limiting slide grooves are provided on the fixed sleeve rod, the interior of the limiting slide grooves are slidably connected to the tensioning and closing rods, a pair of return springs are provided in the middle of the tensioning and closing rods, one end of the tensioning and closing rods is fixedly connected to a clamping head, and the end of the clamping head away from the tensioning and closing rods is provided with an arc-shaped plug that presses against the socket and drives the tensioning and closing rod to squeeze the return spring.

[0006] Optionally, the switching mechanism includes a pair of sliding rods slidably connected to the lock, and one end of the sliding rod inside the lock is provided with a butt corresponding to the opening and closing rod, and the end of the opening and closing rod close to the sliding rod is provided with a butt block which is pressed by the butt and drives the opening and closing rod to squeeze the reset spring.

[0007] Optionally, a pressing block is fixedly connected to the other end of the pair of sliding rods.

[0008] Optionally, a pair of pressing wings are fixedly connected to the outer wall of the lock buckle.

[0009] Optionally, an annular hole is formed at one end of the hook, and a triangular support block for supporting the rotation of the lock buckle is fixedly connected to the end of the hook close to the annular hole.

[0010] Optionally, the triangular support block is further provided with a reset mechanism that drives the lock buckle to rebound against the end of the hook after being pressed and rotated.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This utility model utilizes a combination of an insert, a latch, a locking mechanism, and a switch mechanism. The lock buckle on the hook automatically locks by pressing it against the hook's outer wall, eliminating the need to continuously press the buckle when removing the hook from the cargo. This operation method not only reduces hand fatigue and soreness, but also improves work comfort. Furthermore, the automatic locking mechanism reduces the loss of concentration caused by hand fatigue and reduces the possibility of operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a first state of an anti-drop mechanism for a lower hook of the present invention is provided;

[0014] Figure 2 A schematic structural diagram of the second state of the anti-drop mechanism of the lower hook of the present invention is given;

[0015] Figure 3 for Figure 2 Schematic diagram of the cross-section structure;

[0016] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0017] Figure 5 for Figure 3 Schematic diagram of part of the structure;

[0018] Figure 6 Schematic diagram of the partial split structure of 5.

[0019] Figure numerals: 1, hook; 11, socket; 12, clamping hole; 2, triangular support block; 3, lock; 31, sliding rod; 32, pressing block; 33, pressing wing; 4, fixing sleeve rod; 41, limiting slide groove; 42, opening and closing rod; 43, resisting block; 44, reset spring; 45, clamping head; 46, arc plug. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] like Figures 1 to 6 As shown, the utility model proposes an anti-slip mechanism for the lower hook, including a hook 1 and a lock buckle 3 rotatably installed on the hook 1, a pair of pressing protrusions 33 are fixedly connected to the outer wall of the lock buckle 3, an annular hole is opened at one end of the hook 1, and a triangular support block 2 that supports the rotation of the lock buckle 3 is fixedly connected to the end of the hook 1 close to the annular hole, and the triangular support block 2 is also provided with a reset mechanism that drives the lock buckle 3 to rebound to the end of the hook 1 after being pressed and rotated. The reset mechanism makes the lock buckle 3 that is pressed and rotated automatically return to the end that is stuck to the hook 1, and then forms the hook 1 into a closed state to prevent the goods from falling off from the end of the hook 1. It also includes: a socket 11 provided on the hook 1, with a connected latch hole 12 provided inside the socket 11; a locking mechanism provided in the lock buckle 3, which can be locked by the socket 11 when rotated in the direction of the latch hole 12; a switch mechanism installed on the lock buckle 3, which can release the locked lock buckle 3 by manual pressing. The switch mechanism allows the locking mechanism to quickly switch from locking to releasing, so that the work efficiency of the hook 1 in lifting goods will not be reduced due to the locking mechanism. On the contrary, it can improve the work efficiency of the staff by avoiding excessive fatigue and exhaustion of the staff's hands.

[0028] Furthermore, the locking mechanism includes a fixed sleeve rod 4 fixedly connected to the lock buckle 3. The fixed sleeve rod 4 is provided with a pair of limiting slide grooves 41. The limiting slide grooves 41 are each slidably connected to an opening and closing rod 42. The middle portion of the opening and closing rod 42 is provided with a pair of return springs 44. The return springs 44 cause a clamping head 45 inserted into the clamping hole 12 to automatically open and clamp the socket 11, thereby completing the use of the locking mechanism. One end of the opening and closing rod 42 is fixedly connected to a clamping head 45. The end of the clamping head 45 away from the opening and closing rod 42 is provided with an arc-shaped plug 46 that presses against the socket 11 and drives the opening and closing rod 42 to squeeze the return spring 44. The arc-shaped plug 46 causes the clamping head 45 to press against the socket 11, which then causes the pair of clamping heads 45 to automatically close. After closing, the pair of clamping heads 45 can easily pass through the socket 11.

[0029] Furthermore, the switch mechanism includes a pair of sliding rods 31 slidably connected to the lock 3, and the other ends of the pair of sliding rods 31 are fixedly connected to a pressing block 32. One end of the sliding rod 31 in the lock 3 is provided with a head corresponding to the opening and closing rod 42, and the end of the opening and closing rod 42 close to the sliding rod 31 is provided with a head 43 which is pressed by the head and drives the opening and closing rod 42 to squeeze the return spring 44. The head presses against the head 43, and then the head 43 drives the opening and closing rod 42 to slide into the fixed sleeve rod 4, so that the pair of clamps 45 are automatically closed, and finally the closed pair of clamps 45 can easily pass through the socket 11.

[0030] In this embodiment, when the anti-drop mechanism of the lower hook is needed, Figure 1As shown, it is only necessary to press the pressing protruding wing 33 on the lock buckle 3 in the direction of the socket 11. The pressing protruding wing 33 drives the lock buckle 3 to rotate through the support of the triangular support block 2 until the lock buckle 3 drives the clamping head 45 on the end of the tensioning and closing rod 42 to press against the socket 11. Then, the arc-shaped plug 46 on the clamping head 45 drives the tensioning and closing rod 42 to compress the reset spring 44, so that the clamping heads 45 at the ends of a pair of tensioning and closing rods 42 pass through the socket 11 and are inserted into the clamping holes 12. The elastic thrust of the return spring 44 in the middle of the pair of tensioning and closing rods 42 causes the tensioning and closing rods 42 to drive the corresponding clamping heads 45 to be stuck in the clamping holes 12 and cannot fall out of the socket 11, thereby making it easy to remove the cargo from the hook 1. When it is necessary to adjust the locked lock buckle 3 to Figure 1 To realize the unlocking of the lock, just pinch the lock catch 3 and press the pressing block 32. The pressing block 32 pushes the pair of sliding rods 31 toward the opening and closing rod 42. The end of the sliding rod 31 away from the pressing block 32 drives the corresponding abutment to press against the corresponding abutment 43, so that the abutment 43 drives the corresponding opening and closing rod 42 to compress the reset spring 44. The end of the opening and closing rod 42 away from the abutment 43 drives the corresponding clamping heads 45 to press against each other, and then the pair of clamping heads 45 can be disengaged from the clamping hole 12 and pass through the insertion hole 11. Finally, the reset mechanism provided on the triangular support block 2 can make the lock catch 3 rotate back to the state as shown in the figure after release. Figure 1 The status shown is simple and easy to operate.

[0031] The preferred embodiments of the present invention described above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-drop mechanism for a lower hook, comprising a hook (1) and a lock (3) rotatably mounted on the hook (1), characterized in that: Also includes: A socket (11) is provided on the hook (1), and a communicating latch hole (12) is provided inside the socket (11); A locking mechanism is provided in the lock buckle (3) and can be locked by the insertion hole (11) when rotated in the direction of the locking hole (12); A switch mechanism is installed on the lock catch (3) and is used to release the locked lock catch (3) by manual pressing.

2. The anti-drop mechanism of the lower hook according to claim 1, characterized in that: The locking mechanism comprises a fixed sleeve rod (4) fixedly connected to the lock buckle (3), a pair of limiting sliding grooves (41) are provided on the fixed sleeve rod (4), the interior of the limiting sliding grooves (41) are slidably connected to the opening and closing rods (42), a pair of return springs (44) are provided in the middle of the opening and closing rods (42), one end of the opening and closing rods (42) are fixedly connected to the clamping head (45), and the end of the clamping head (45) away from the opening and closing rods (42) is provided with an arc plug (46) which abuts against the socket (11) and drives the opening and closing rods (42) to squeeze the return spring (44).

3. The anti-drop mechanism of the lower hook according to claim 2, characterized in that: The switch mechanism comprises a pair of sliding rods (31) slidably connected to the lock catch (3), one end of each sliding rod (31) inside the lock catch (3) is provided with a butt head corresponding to the opening and closing rod (42), and one end of the opening and closing rod (42) close to the sliding rod (31) is provided with a butt block (43) which is pressed by the butt head and drives the opening and closing rod (42) to squeeze the return spring (44).

4. The anti-drop mechanism of the lower hook according to claim 3, characterized in that: The other ends of the pair of sliding rods (31) are fixedly connected with a pressing block (32).

5. The anti-drop mechanism of the lower hook according to claim 1, characterized in that: A pair of pressing convex wings (33) are fixedly connected to the outer wall of the lock buckle (3).

6. The anti-drop mechanism of the lower hook according to claim 1, characterized in that: An annular hole is formed at one end of the hook (1), and a triangular support block (2) that supports the rotation of the lock buckle (3) is fixedly connected to the end of the hook (1) close to the annular hole.

7. The anti-drop mechanism of the lower hook according to claim 6, characterized in that: The triangular support block (2) is also provided with a reset mechanism that drives the lock buckle (3) to rebound to abut against the end of the hook (1) after being pressed and rotated.

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