Safety hook for ladder
By designing a ladder safety hook with a fixed plate, U-shaped plate, steel hook, and adjustment mechanism, the problem of cumbersome operation in the existing technology is solved, realizing convenient hooking and adaptability to different finger lengths, thus improving ladder climbing speed and safety.
Patent Information
- Application Number
- CN202520002290.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing ladder safety hooks are cumbersome to operate when climbing ladders, affecting climbing speed.
A ladder safety hook was designed, comprising a fixed plate, a U-shaped plate, a steel hook, a cylinder, and an adjustment mechanism. Through the cooperation of the cylinder and the rotating ring, a convenient hook and adjustment function is achieved to accommodate different finger lengths.
The hook operation process is simplified, the ladder climbing speed and safety are improved, and it is suitable for workers with different finger lengths.
Smart Images
Figure CN223881097U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of safety hooks, in particular to a safety hook for ladders. BACKGROUND
[0002] Safety hooks, also known as "master locks", are the most commonly used connection tools for connecting ropes, flat belts, anchor points, equipment, etc. Safety hooks need to have a locking function. The locking function is divided into two types: hand-turning lock and automatic lock. Hand-turning lock is suitable for most environments, but it must be locked immediately after connection, otherwise accidents may occur due to accidental equipment collision during operation. The hook ring that is not locked is in an open state, and its tensile strength (breaking load) is much lower than that of the locked state. There are two types: ordinary type (rotary type) and spring hook (self-locking type). The shapes are mostly "D" (rescue, military) and "8" (engineering, construction).
[0003] The hooks on the market currently need to be unlocked by hand before using them to climb ladders, and the hooks need to be locked after being hung on the ladder. This process is repeated for each level of the ladder, which is relatively cumbersome and affects the speed of climbing the ladder. Therefore, technical innovation and design optimization are needed to optimize the safety hook for ladders. SUMMARY
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a safety hook for ladders, comprising:
[0005] A fixed plate is provided at the top of the fixed plate, a U-shaped plate is fixed on the U-shaped plate, a steel hook is rotatably connected to the U-shaped plate through a rotating shaft, a cylinder is provided on the steel hook, and an adjusting mechanism is provided on the steel hook to adjust the position of the cylinder.
[0006] Preferably, an arc-shaped plate is fixed on one side of the fixed plate, and a soft pad is fixed on the inner side of the arc-shaped plate.
[0007] Preferably, a fixed block is fixed at the bottom of the fixed plate, a fixed column is fixed at the bottom of the fixed block, a circular ring is provided at the bottom of the fixed column, the fixed column penetrates the circular ring at the bottom end, and a stop block is fixed at the bottom end of the fixed column.
[0008] Preferably, the circular ring can rotate on the fixed column.
[0009] Preferably, the adjusting mechanism includes an arc-shaped groove formed on the iron hook, the cylinder penetrates the arc-shaped groove, a rotating ring is sleeved on the cylinder, threads are provided at the ends of the cylinder, and the cylinder is threadedly connected with the rotating ring.
[0010] Preferably, a rubber pad is sleeved between the rotating ring and the steel hook outside the cylinder.
[0011] Preferably, the steel hook is fixed with a baffle on one side.
[0012] In the above technical solutions, the technical effects and advantages of the utility model are provided.
[0013] 1、 through fixing one end of the safety rope on the circular ring and the other end on the worker's body, and putting the hand in the arc-shaped plate, when climbing the ladder, first hang the steel hook on the ladder and climb upward, then use the fingers to push the cylinder backward, so that the cylinder drives the steel hook to rotate backward, and the steel hook is convenient to take off from the ladder, and so on, so as to avoid the accident caused by the worker's hand slipping;
[0014] 2、 by rotating the rotating ring away from the steel hook, the cylinder can be moved at this time, after moving to the position, rotating the rotating ring towards the steel hook, the rotating ring will cooperate with the rubber pad to clamp the steel hook, avoiding the cylinder from sliding in the arc-shaped groove, so as to realize the function of adjusting the position of the cylinder according to the length of the fingers of different workers, improving the practicability. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the adjusting mechanism structure of the utility model;
[0018] Figure 3 It is a sectional view of the internal structure of the adjusting mechanism of the utility model;
[0019] Figure 4 It is a schematic diagram of the local structure of the utility model;
[0020] Figure 5 It is a sectional view of the local structure of the utility model.
[0021] Explanation of reference signs:
[0022] 1, steel hook; 2, arc-shaped groove; 3, cylinder; 4, baffle; 5, fixed plate; 6, circular ring; 7, arc-shaped plate; 8, U-shaped plate; 9, rotating ring; 10, rubber pad; 11, thread; 12, fixed block; 13, fixed column; 14, stop block. DETAILED DESCRIPTION
[0023] In order to make the technical personnel of the prior art better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.
[0024] Referring to Figures 1-5 As shown in FIG.
[0025] The fixed plate 5 is fixed with a U-shaped plate 8 at the top, and a steel hook 1 is rotatably connected to the U-shaped plate 8 through a rotating shaft. A cylindrical body 3 is arranged on the steel hook 1, and an adjusting mechanism capable of adjusting the position of the cylindrical body 3 is arranged on the steel hook 1.
[0026] Further, an arc-shaped plate 7 is fixed on one side of the fixed plate 5, and a soft pad is fixed on the inner side of the arc-shaped plate 7, so that the hand can be sleeved in the arc-shaped plate 7.
[0027] Further, a fixed block 12 is fixed at the bottom of the fixed plate 5, a fixed column 13 is fixed at the bottom of the fixed block 12, a circular ring 6 is arranged at the bottom of the fixed column 13, the fixed column 13 penetrates through the circular ring 6 at the bottom, and a stop block 14 is fixed at the bottom of the fixed column 13, so that the safety rope can be fixed on the circular ring 6.
[0028] Further, the fixed column 13 is slidably connected with the circular ring 6, the circular ring 6 can rotate on the fixed column 13, and the circular ring 6 can rotate to avoid the safety rope being twisted due to tension.
[0029] Further, the adjusting mechanism comprises an arc-shaped groove 2 arranged on the iron hook, the cylindrical body 3 penetrates through the arc-shaped groove 2, a rotating ring 9 is sleeved on the cylindrical body 3, threads 11 are arranged at the ends of the cylindrical body 3, and the cylindrical body 3 is threadedly connected with the rotating ring 9. The position of the cylindrical body 3 can be adjusted according to the length of the fingers, so that the fingers can drive the steel hook 1 to rotate through the cylindrical body 3. The rotating ring 9 is rotated in the direction away from the steel hook 1, at this time, the cylindrical body 3 can be moved, after the position is moved, the rotating ring 9 is rotated in the direction close to the steel hook 1, and the rotating ring 9 cooperates with the rubber pad 10 to clamp the steel hook 1, so as to avoid the cylindrical body 3 from continuously sliding in the arc-shaped groove 2.
[0030] Further, the rubber pad 10 is sleeved between the rotating ring 9 and the steel hook 1 outside the cylindrical body 3, so as to improve the friction between the rotating ring 9 and the steel hook 1.
[0031] Further, the steel hook 1 is fixed with a baffle 4 on one side, so as to avoid the steel hook 1 from rotating backward.
[0032] Through the above technical scheme:
[0033] When in use, one end of the safety rope is fixed on the ring 6, the other end is fixed on the body of the worker, the hand is sleeved in the arc-shaped plate 7, when climbing the ladder, the steel hook 1 is hung on the ladder first, then the cylinder 3 is pushed backward by the fingers, the steel hook 1 rotates along with the bending of the fingers, the cylinder 3 drives the steel hook 1 to rotate backward, the baffle 4 avoids the steel hook 1 from rotating backward continuously, the steel hook 1 is taken off from the ladder, and the climbing is continued.
[0034] When people with different finger lengths use, the position of the cylinder 3 can be adjusted according to the length of the fingers, so that the fingers can drive the steel hook 1 to rotate through the cylinder 3, the rotating ring 9 rotates away from the steel hook 1, at this time, the cylinder 3 can be moved, after the position is moved, the rotating ring 9 rotates towards the steel hook 1, the rotating ring 9 clamps the steel hook 1 in cooperation with the rubber pad 10, and the cylinder 3 is avoided from sliding in the arc-shaped groove 2 continuously.
[0035] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various different ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.
Claims
1. A safety hook for ladders, characterized in that, Include: The fixed plate (5) top is fixed with two U-shaped plate (8), two U-shaped plate (8) between the rotation axis rotation is connected with steel hook (1), the steel hook (1) is equipped with cylinder (3), the steel hook (1) is equipped with the adjusting mechanism that can adjust the position of cylinder (3).
2. A safety hook for ladders as defined in claim 1, characterized in that: The inside of the fixed plate (5) is fixed with an arc plate (7), and the inside of the arc plate (7) is fixed with a soft pad.
3. A safety hook for ladders as defined in claim 1, wherein: The bottom of the fixed plate (5) is fixed with a fixed block (12), and the bottom of the fixed block (12) is fixed with a fixed column (13), and the bottom of the fixed column (13) is provided with a circular ring (6), the fixed column (13) bottom end penetrates the circular ring (6), and the fixed column (13) bottom end is fixed with a stop block (14).
4. A safety hook for ladders as defined in claim 3, wherein: The fixed column (13) and the circular ring (6) are slidably connected, and the circular ring (6) can rotate on the fixed column (13).
5. A safety hook for ladders as defined in claim 1, wherein: The adjusting mechanism comprises an arc slot (2) formed in the steel hook (1), the cylinder (3) penetrates the arc slot (2), the both sides of the cylinder (3) are sleeved with a rotating ring (9), the both ends of the cylinder (3) are provided with threads (11), and the cylinder (3) is threadedly connected with the rotating ring (9).
6. A safety hook for ladders as defined in claim 5, wherein: The rubber pad (10) is sleeved between the rotating ring (9) and the steel hook (1) outside the cylinder (3).
7. A safety hook for ladders as defined in claim 1, wherein: The bottom outside of the steel hook (1) is fixed with a baffle (4).