Gravity reset plate hook type opening and closing mechanism
By using the hook plate and the hook engagement part to achieve the opening and closing of the mechanical clamp through the gravity reset of the swing rod, the problem of complex structure and high cost of existing mechanisms is solved, and a fast and low-cost opening and closing effect is achieved.
Patent Information
- Application Number
- CN202521908610.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-05
AI Technical Summary
Existing mechanical clamp opening and closing mechanisms are complex in structure and rely on electronic or hydraulic drives, resulting in cumbersome processing, high costs, and difficult maintenance.
It adopts a hook plate and a lower hook engagement part, and the opening and closing are achieved by hooking and separating. The gravity of the swing rod is used for resetting, reducing the number of parts and processing steps, and adopting a purely mechanical structure.
It enables rapid opening and closing, reduces manufacturing costs, decreases the number of parts and processing steps, and avoids dependence on motors and hydraulic equipment.
Smart Images
Figure CN224677603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sling manufacturing technology, and more specifically, to a gravity-reset plate hook type opening and closing mechanism. Background Technology
[0002] With the rapid development of the lifting sling industry, lifting slings are becoming increasingly versatile and convenient. As a result, a device has emerged to assist mechanical clamps in opening and closing operations.
[0003] Currently, existing mechanical clamp opening and closing mechanisms generally suffer from the following problems: First, their structural design is complex, containing multiple linkage components and drive components, resulting in cumbersome processing procedures; second, they rely on electronic or hydraulic drive equipment, which not only increases equipment costs but also presents the drawback of difficult system maintenance; third, due to the complexity of the structure and the investment in drive equipment, the overall manufacturing cost is high, resulting in resource waste and difficulty in improving production efficiency.
[0004] Therefore, a plate hook type opening and closing mechanism with simple structure, low machining requirements, and gravity reset capability that enables mechanical clamps to complete opening and closing actions is needed. Utility Model Content
[0005] The purpose of this utility model is to provide a gravity-reset plate hook type opening and closing mechanism to solve the problems existing in the prior art. The hook plate and the lower hook are provided with mutually cooperating hook parts, and the opening and closing of the mechanism is realized by the engagement and disengagement of the hook parts.
[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a gravity-reset plate-hook type opening and closing mechanism, including: a hook plate, a lower hook, and a swing rod. The hook plate is rotatably mounted on a lifting device, the lower hook is fixedly mounted on the object being lifted, and the swing rod is rotatably mounted on the lower hook. The hook plate and the lower hook are respectively provided with mutually cooperating hooking parts. The opening and closing of the mechanism are achieved by the engagement and disengagement of the hooking parts. When the hook plate moves downward, it can press down on the swing rod to make it rotate, providing movement space for the engagement of the hooking parts. When the hook plate no longer presses down on the swing rod, the swing rod automatically resets under the action of gravity, driving the hook plate back to its initial state.
[0007] According to the present invention, a gravity-reset plate hook opening and closing mechanism is provided, wherein the hook plate is rotatably mounted on the lifting equipment via a first pin.
[0008] According to the present invention, a gravity-reset plate-hook type opening and closing mechanism is provided, wherein the swing arm is rotatably mounted in the gap between the two plates of the lower hook via a second pin and a bearing, and the bearing is used to reduce the frictional resistance when the swing arm rotates.
[0009] According to the present invention, a gravity-reset plate hook type opening and closing mechanism is provided, wherein the hooking part is a hook head structure, including a first hook head and a second hook head. The first hook head is located at the lower end of the hook plate, and the second hook head is located at the lower hook edge. The first hook head and the second hook head are engaged in a barb shape. When the hook plate moves upward, the first hook head can hook the second hook head to achieve closure.
[0010] According to the present invention, a gravity-reset plate hook opening and closing mechanism is provided, wherein the swing arm is arc-shaped and the center of gravity of the swing arm is located at the center of the second pin shaft, so as to achieve automatic reset by utilizing gravity.
[0011] According to the present invention, a gravity-reset plate hook type opening and closing mechanism is provided, wherein the lower hook is fixedly installed on the object being lifted by bolts.
[0012] The present invention discloses the following technical effects:
[0013] In this invention, the hook plate and the lower hook are respectively provided with mutually cooperating hook parts. The opening and closing of the mechanism is realized by the engagement and disengagement of the hook parts. A swing rod is rotatably installed on the lower hook. The swing rod automatically resets using the principle of gravity balance, without the need for an additional power source. It has a fast response speed and is suitable for high-frequency opening and closing operations. It drives the hook plate to return to its initial state. It adopts a pure mechanical structure design, without the need for hydraulic, motor or other drive equipment, reducing the number of parts and processing steps, and reducing manufacturing costs. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a side view of the entire utility model;
[0017] Figure 3 This is a diagram showing the working state of this utility model;
[0018] Among them, 1. hook plate; 2. first pin; 3. lower hook; 4. swing rod; 5. bearing; 6. second pin; 7. first hook head; 8. second hook head. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1 to 3 As shown, this utility model provides a gravity-reset plate-hook type opening and closing mechanism, including: a hook plate 1, a lower hook 3, and a swing rod 4. The hook plate 1 is rotatably mounted on the lifting equipment, the lower hook 3 is fixedly mounted on the object being lifted, and the swing rod 4 is rotatably mounted on the lower hook 3. The hook plate 1 and the lower hook 3 are respectively provided with mutually cooperating hooking parts. The opening and closing of the mechanism are realized by the engagement and disengagement of the hooking parts. When the hook plate 1 moves downward, it can press down on the swing rod 4 to make it rotate, providing movement space for the engagement of the hooking parts. When the hook plate 1 no longer presses down on the swing rod 4, the swing rod 4 automatically resets under the action of gravity, driving the hook plate 1 back to its initial state.
[0022] The hook plate 1 is rotatably mounted on the lifting equipment via the first pin 2, and can rotate up and down around the first pin 2. The lower hook 3 is fixedly mounted on the object being lifted or on the mechanical clamp body via bolts, and its position is fixed. The swing arm 4 is rotatably mounted in the gap between the two plates of the lower hook 3 via the second pin 6 and the bearing 5. The bearing 5 is installed to reduce rotational friction.
[0023] The hooking part includes a first hook head 7 and a second hook head 8. The first hook head 7 is located at the lower end of the hook plate 1 and is integrally formed with the hook plate 1. The second hook head 8 is located at the edge of the lower hook 3. The first hook head 7 and the second hook head 8 are hook-shaped and fit together. The opening and closing of the mechanism are realized by the engagement and disengagement of the first hook head 7 and the second hook head 8.
[0024] The swing arm 4 has an arc-shaped structure, with its center of gravity located at the center of the second pin 6. When the hook plate 1 presses down on the swing arm 4, the swing arm 4 rotates around the second pin 6, providing space for the hook head to engage. When the hook plate 1 no longer applies pressure, the swing arm 4 automatically resets under the action of gravity, causing the hook plate 1 to return to its initial state.
[0025] Working principle: The lifting device drives the hook plate 1 to move downward. The hook plate 1 first contacts the lower hook 3 and rotates around the first pin 2. The hook plate 1 continues to move downward, pressing down the swing rod 4 so that it rotates around the second pin 6. The rotation angle of the swing rod 4 is 15°-45°. When the hook plate 1 moves below the second hook head 8 of the lower hook 3, the lifting device drives the hook plate 1 to move upward. The first hook head 7 hooks the second hook head 8, completing the closure. The hook plate 1 continues to move downward and no longer presses down the swing rod 4. Since the center of gravity of the swing rod 4 is located at the center of the second pin 6, it automatically returns to the initial position under the action of gravity. When the lifting device drives the hook plate 1 to rise, the hook plate 1 slides along the arc surface of the swing rod 4, the first hook head 7 separates from the second hook head 8, and the mechanism returns to the open state.
[0026] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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.
[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A gravity-reset plate-hook type opening and closing mechanism, characterized in that, include: The hook plate (1), the lower hook (3), and the swing rod (4) are rotatably mounted on the lifting equipment. The lower hook (3) is fixedly mounted on the object being lifted. The swing rod (4) is rotatably mounted on the lower hook (3). The hook plate (1) and the lower hook (3) are respectively provided with mutually cooperating hooking parts. The mechanism is closed and opened by the engagement and disengagement of the hooking parts. When the hook plate (1) moves downward, it can press down the swing rod (4) to make it rotate, providing movement space for the hooking part to engage. When the hook plate (1) no longer presses down the swing rod (4), the swing rod (4) automatically resets under the action of gravity, driving the hook plate (1) back to its initial state.
2. The gravity-reset plate hook opening and closing mechanism according to claim 1, characterized in that: The hook plate (1) is rotatably mounted on the lifting device via the first pin (2).
3. The gravity-reset plate hook opening and closing mechanism according to claim 1, characterized in that: The swing arm (4) is rotatably mounted in the gap between the two plates of the lower hook (3) via a second pin (6) and a bearing (5). The bearing (5) is used to reduce the frictional resistance when the swing arm (4) rotates.
4. The gravity-reset plate hook opening and closing mechanism according to claim 1, characterized in that: The hooking part is a hook head structure, including a first hook head (7) and a second hook head (8). The first hook head (7) is located at the lower end of the hook plate (1), and the second hook head (8) is located at the edge of the lower hook (3). The first hook head (7) and the second hook head (8) are hooked together in a barb shape. When the hook plate (1) moves upward, the first hook head (7) can hook the second hook head (8) to achieve closure.
5. The gravity-reset plate-hook type opening and closing mechanism according to claim 3, characterized in that: The swing arm (4) has an arc-shaped structure, and the center of gravity of the swing arm (4) is located at the center of the second pin (6) on which it is installed, so as to achieve automatic reset by using gravity.
6. The gravity-reset plate-hook type opening and closing mechanism according to claim 1, characterized in that: The lower hook (3) is fixedly installed on the object being lifted by bolts.