Lifting hook with lock catch structure

Abstract

The utility model discloses a lifting hook with a lock catch structure, which relates to the technical field of lifting hook lock catches, and comprises a vertical plate, the top end of the vertical plate is fixedly connected with an upper bending plate, the bottom end of the vertical plate is fixedly connected with a lower bending plate, one end of the upper bending plate is provided with a mounting hole, and the outer surface of the lower bending plate is provided with a chute. The lock catch is reasonable in design structure, and when the lock catch needs to be locked, the fixing rod is pushed, the sliding head slides into the mounting hole, the sliding head is clamped in the mounting hole through the baffle, the fixing rod and the upper bent plate are fixed together, and the lock catch can be locked through cooperation of the vertical plate, the sliding rod and the baffle. The utility model relates to a lifting hook, in particular to a lifting hook, which solves the problems that the existing lifting hook is basically not provided with a lock catch structure or is provided with a simple anti-falling safety clamp, but the anti-falling safety clamp is rotationally connected with the lifting hook and is basically not provided with a locking structure, so that certain potential safety hazards exist during use.

Description

Technical Field

[0001] This utility model relates to the technical field of hook locking mechanisms, specifically a hook with a locking structure. Background Technology

[0002] Cranes play a vital role in industrial production, and their core functions are reflected in many aspects. First, they are the core component of lifting operations. Whether it is lifting heavy objects on construction sites, raising equipment in factories, or loading and unloading cargo at docks and ports, crane hooks can firmly connect to the objects being lifted and work in conjunction with lifting ropes to ensure the smooth progress of the lifting process.

[0003] However, existing lifting hooks generally lack a locking mechanism, or only have a simple anti-detachment safety catch, but the rotatable connection between the anti-detachment safety catch and the hook is also generally not locked in place, posing certain safety hazards during use. Therefore, we provide lifting hooks with a locking mechanism to solve these problems. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] This utility model proposes a hook with a locking structure. Through the cooperation between the mounting hole, the fixing rod, and the baffle, when it is necessary to lock the hook, the fixing rod is pushed to install the sliding head into the mounting hole. The baffle is used to lock the sliding head into the mounting hole, and the fixing rod is fixed together with the upper curved plate. This solves the problem that existing hooks basically do not have a locking structure, or have a simple anti-detachment safety clip, but the rotational connection between the anti-detachment safety clip and the hook is basically without a locking structure, which poses certain safety hazards during use.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hook with a locking structure, comprising a vertical plate, an upper curved plate fixedly connected to the top of the vertical plate, and a lower curved plate fixedly connected to the bottom of the vertical plate;

[0008] The upper curved plate has an installation hole at one end, and the lower curved plate has a sliding groove on its outer surface. A fixed rod is slidably connected to the inner wall of the sliding groove. A sliding plate is connected to the bottom end of the fixed rod, and a sliding head is fixedly connected to the top end of the fixed rod. A sliding rod is slidably connected to the outer surface of the upper curved plate. A baffle is fixedly connected to one end of the sliding rod, and a pull plate is fixedly connected to the other end of the sliding rod.

[0009] Furthermore, a limiting plate is fixedly connected to the outer surface of the slide plate, and a limiting groove is formed in the inner wall of the slide groove. The outer surface of the limiting plate is slidably connected to the inner wall of the limiting groove.

[0010] Furthermore, a movable plate is fixedly connected to the outer surface of the skateboard, and a friction strip is fixedly connected to the outer surface of the movable plate.

[0011] Furthermore, a spring is sleeved on one end of the slide rod, one end of the spring is fixedly connected to the outer surface of the baffle, and the other end of the spring is fixedly connected to the inner wall of the mounting hole.

[0012] Furthermore, the outer surface of the pull plate is fixedly connected with support rings, which are symmetrically distributed on the outside of one end of the upper bending plate.

[0013] Furthermore, the baffle is divided into upper and lower parts, with the upper part being a right-angled plate and the lower part being an arc-shaped plate.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this hook with a locking structure has the following advantages:

[0016] I. This hook with a locking structure, through the cooperation of the vertical plate, mounting hole, sliding rod and baffle, when using the device, when it is necessary to lock the hook, push the fixing rod to install the sliding head into the inside of the mounting hole, use the baffle to lock the sliding head inside the mounting hole, and fix the fixing rod and the upper curved plate together. This solves the problem that existing hooks basically do not have a locking structure, or have a simple anti-detachment safety clip, but the rotational connection between the anti-detachment safety clip and the hook is basically not a locking structure, which poses certain safety hazards during use.

[0017] II. The hook with a locking structure, through the cooperation between the sliding rod, spring, pull plate and support ring, allows the lock to be opened when the device is in use. The thumb and forefinger are inserted into the two support rings to open them, so that the two support rings move away from each other and the two baffles move away from each other, thus releasing the restriction on the fixed rod. Then, the fixed rod is moved down by the moving plate to open the lock, thus achieving the purpose of convenient operation. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the slide rod and the spring of this utility model.

[0023] In the diagram: 1. Vertical plate; 2. Upper curved plate; 3. Lower curved plate; 4. Mounting hole; 5. Slide groove; 6. Fixing rod; 7. Slide plate; 8. Slide head; 9. Slide rod; 10. Baffle; 11. Pull plate; 12. Limiting plate; 13. Limiting groove; 14. Moving plate; 15. Friction strip; 16. Spring; 17. Support ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: a hook with a locking structure, including a vertical plate 1, an upper curved plate 2 fixedly connected to the top of the vertical plate 1, and a lower curved plate 3 fixedly connected to the bottom of the vertical plate 1. The upper curved plate 2, the lower curved plate 3 and the vertical plate 1 form the whole of the hook. The hook is forged from No. 20 high-quality carbon steel. This material has moderate strength and toughness and can meet the lifting requirements.

[0026] An installation hole 4 is provided at one end of the upper curved plate 2, and a sliding groove 5 is provided on the outer surface of the lower curved plate 3. A fixed rod 6 is slidably connected to the inner wall of the sliding groove 5. A limit plate 12 is fixedly connected to the outer surface of the sliding plate 7. A limit groove 13 is provided on the inner wall of the sliding groove 5. The outer surface of the limit plate 12 is slidably connected to the inner wall of the limit groove 13. When the fixed rod 6 is slidably moved, the limit plate 12 will slide on the inner wall of the limit groove 13 to limit the movement of the fixed rod 6, prevent the fixed rod 6 from rotating, and make it only move in the vertical direction. The diameter of the installation hole 4 is larger than the diameter of the fixed rod 6.

[0027] A movable plate 14 is fixedly connected to the outer surface of the skateboard 7. A friction strip 15 is fixedly connected to the outer surface of the movable plate 14. When the fixed rod 6 moves upward, the thumb can be pressed on the outer surface of the movable plate 14, and the thumb contacts the friction strip 15, which facilitates the movement of the fixed rod 6.

[0028] The bottom end of the fixed rod 6 is connected to the slide plate 7, and the top end of the fixed rod 6 is fixedly connected to the slide head 8. The outer surface of the upper curved plate 2 is slidably connected to the slide rod 9. There are two slide rods 9, which are symmetrically distributed on the outer surface of the upper curved plate 2. One end of the slide rod 9 is fixedly connected to the baffle 10. The slide head 8 is semi-circular in shape, which facilitates sliding with the position of the arc plate in the baffle 10.

[0029] The other end of the slide bar 9 is fixedly connected to a pull plate 11. The outer surface of the pull plate 11 is fixedly connected to a support ring 17. The support rings 17 are symmetrically distributed on the outside of one end of the upper curved plate 2. When it is necessary to open the lock, the thumb and forefinger can be inserted into the inside of the two support rings 17 to open it.

[0030] A spring 16 is sleeved on one end of the slide rod 9. One end of the spring 16 is fixedly connected to the outer surface of the baffle 10, and the other end of the spring 16 is fixedly connected to the inner wall of the mounting hole 4. When the fixed rod 6 is pushed, the slide head 8 comes into contact with the two baffles 10, squeezing the two baffles 10 and moving them away from each other. At this time, the spring 16 is compressed. When the slide head 8 slides past the baffle 10, the spring 16 returns to its original position, causing the two baffles 10 to move closer to each other. The slide head 8 will come into contact with the position of the right angle plate in the baffle 10 and be locked inside the mounting hole 4 by the right angle plate, thus achieving locking.

[0031] The baffle 10 is divided into two parts: the upper part is a right-angle plate and the lower part is an arc-shaped plate. The arc-shaped part makes it easy to slide the fixing rod 6 into the mounting hole 4, while the right-angle plate prevents the fixing rod 6 from falling out of the mounting hole 4.

[0032] Working principle: When the latch needs to be locked, push the fixing rod 6 to push the slide head 8 into the mounting hole 4. At this time, the limiting plate 12 will slide inside the limiting groove 13. The slide head 8 will contact the two baffles 10, squeezing the two baffles 10 and moving them away from each other. At this time, the spring 16 will be compressed. When the slide head 8 slides past the baffles 10, the spring 16 will return to its original position, causing the two baffles 10 to move closer to each other. The slide head 8 will contact the position of the right angle plate in the baffle 10 and be locked inside the mounting hole 4 by the right angle plate, thus locking the latch. When the latch needs to be opened, use your thumb and forefinger to enter the two support rings 17 and open them, moving the two support rings 17 away from each other. Driven by the slide rod 9, the two baffles 10 will also move away from each other. At this time, the spring 16 will be compressed, releasing the restriction on the fixing rod 6. Then, by moving the moving plate 14, the fixing rod 6 can be moved down, thus opening the latch. This achieves the purpose of convenient operation.

[0033] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A hook with a shackle, comprising a vertical plate (1), characterized in that: The top end of the vertical plate (1) is fixedly connected with an upper bent plate (2), and the bottom end of the vertical plate (1) is fixedly connected with a lower bent plate (3); One end of the upper bent plate (2) is provided with a mounting hole (4), the outer surface of the lower bent plate (3) is provided with a sliding groove (5), the inner wall of the sliding groove (5) is slidably connected with a fixing rod (6), the bottom end of the fixing rod (6) is connected with a sliding plate (7), the top end of the fixing rod (6) is fixedly connected with a sliding head (8), the outer surface of the upper bent plate (2) is slidably connected with a sliding rod (9), one end of the sliding rod (9) is fixedly connected with a baffle (10), and the other end of the sliding rod (9) is fixedly connected with a pull plate (11).

2. A hook with a locking structure according to claim 1, characterized in that: The outer surface of the sliding plate (7) is fixedly connected with a limiting plate (12), the inner wall of the sliding groove (5) is provided with a limiting groove (13), and the outer surface of the limiting plate (12) is slidably connected with the inner wall of the limiting groove (13).

3. The hook with a locking structure according to claim 1, characterized in that: The outer surface of the sliding plate (7) is fixedly connected with a moving plate (14), and the outer surface of the moving plate (14) is fixedly connected with a friction strip (15).

4. The hook with a locking structure according to claim 1, characterized in that: One end of the sliding rod (9) is sleeved with a spring (16), one end of the spring (16) is fixedly connected with the outer surface of the baffle (10), and the other end of the spring (16) is fixedly connected with the inner wall of the mounting hole (4).

5. The hook with a locking structure according to claim 1, characterized in that: The outer surface of the pull plate (11) is fixedly connected with a supporting ring (17), and the supporting ring (17) is symmetrically distributed outside one end of the upper bent plate (2).

6. The hook with a locking structure according to claim 1, wherein: The baffle (10) is divided into two parts, the upper part is a right-angle plate, and the lower part is an arc-shaped plate.

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