An adjustable opening driving hook

Abstract

This utility model provides an adjustable-opening crane grab hook, relating to the field of grab hook technology. It includes: a housing; two symmetrically arranged connecting plates fixedly connected to the top of the housing; mounting plates fixedly connected to the top of the two connecting plates; and two symmetrically arranged mounting seats at the bottom of the housing, each with a grab hook. This crane grab hook connects the mounting plates to a lifting mechanism. The connecting mechanism allows for the replacement of the corresponding grab hooks, enabling flexible selection of suitable grab hooks based on the characteristics of the object being lifted and fixing them to the mounting seats. Furthermore, the opening mechanism precisely adjusts the opening of the two grab hooks. A smaller opening ensures a firm grip on small objects, while a larger opening allows for complete encapsulation and clamping of large materials, effectively solving the compatibility defects of traditional equipment. The grab hooks are fixed to the mounting seats via the connecting mechanism, facilitating the lifting of different objects. The opening mechanism allows for adjustment of the opening of the two grab hooks.

Description

Technical Field

[0001] This utility model relates to the field of forming gripper hook technology, specifically an adjustable opening crane gripper hook. Background Technology

[0002] In industrial production and logistics lifting operations, overhead crane grab hooks work in conjunction with lifting mechanisms to grab and transfer materials. They are key equipment to ensure the continuity of operations. The structural design of traditional overhead crane grab hooks has obvious limitations: their connection with the lifting mechanism is fixed, the grab hook model is single and cannot be replaced, and when dealing with objects of different sizes and shapes, the entire grab hook assembly needs to be replaced. This not only consumes a lot of disassembly and assembly time, but also requires the stocking of grab hooks of various specifications, which significantly increases equipment costs and management difficulty.

[0003] Meanwhile, traditional grab hooks lack adjustable opening functions, with most having a fixed opening design. In actual operations, if grabbing small or scattered objects, an excessively large opening can lead to an unstable grip, easily causing the material to fall out and posing a safety hazard. If dealing with large or irregularly shaped materials, an excessively small opening cannot completely wrap or clamp them, resulting in insufficient gripping range, difficulty in stable lifting, and even the possibility of deformation of the grab hook or damage to the material due to forced operation. In addition, when it is necessary to frequently switch the type of object to be lifted, the fixed structure of the grab hook cannot quickly adapt to different operational needs, which seriously restricts lifting efficiency and is significantly different from the requirements of modern industry for efficient and flexible operation. Utility Model Content

[0004] The purpose of this application is to provide an adjustable opening crane grab hook to solve the technical problem in the prior art that it is impossible to simultaneously meet the dual requirements of changing the type of object to be adapted to the grab hook and adjusting the opening to be adapted to the size of the object.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide an adjustable opening crane grab hook, comprising: a housing, two symmetrically arranged connecting plates fixedly connected to the top of the housing, mounting plates fixedly connected to the top of the two connecting plates, and two symmetrically arranged mounting seats provided below the housing, each mounting seat having a grab hook provided below it;

[0006] An opening mechanism, which is disposed on the housing, is used to control the opening degree of the two grippers. The opening mechanism includes: a hydraulic rod, a moving block, a connecting block, a connecting rod a, and an L-shaped connecting rod.

[0007] A connecting mechanism is provided on the mounting base for installing and fixing the grab hook. The connecting mechanism includes: a mounting groove, a threaded hole, a mounting block, a slot, a through hole, and a mounting bolt.

[0008] Furthermore, a hydraulic rod is fixedly installed on the top of the housing. The bottom end of the output end of the hydraulic rod extends to the housing and is fixedly connected to a moving block. Two symmetrically distributed connecting blocks are fixedly connected to the outside of the moving block. Connecting rods a are rotatably connected to the bottom of the connecting blocks on opposite sides. An L-shaped connecting rod is rotatably connected inside the connecting rod a. The opposite sides of the L-shaped connecting rod near the middle are rotatably connected to the opposite sides of the inner wall of the housing.

[0009] Furthermore, the mounting base has a mounting groove at the bottom and a threaded hole at the top of the mounting groove. A mounting block is fixedly connected to the top of the grab hook. The two grab hooks have slots on opposite sides. A through hole corresponding to the threaded hole is opened at the top of the slot. A mounting bolt is provided inside the through hole, and the top of the mounting bolt extends into the threaded hole.

[0010] Furthermore, each of the mounting bases has a connecting groove on its top, and the bottom sides of the L-shaped connecting rod are rotatably connected to the inner wall of the connecting groove.

[0011] Furthermore, a fixed cylinder is fixedly connected to the inner wall of the opposite two sides of the housing near the bottom position, and a connecting rod b is rotatably connected between the two opposite fixed cylinders. The bottom of the connecting rod b is rotatably connected to the inner wall of the opposite two sides of the connecting groove.

[0012] Furthermore, the mounting groove and the mounting block are arranged in a T-shape, and the mounting block is slidably connected within the mounting groove.

[0013] The beneficial effects of this utility model are:

[0014] The advantage of this utility model is that by connecting the mounting plate to the lifting mechanism, the corresponding grab hook can be replaced with the matching connecting mechanism, and the appropriate grab hook can be flexibly selected and fixed to the mounting base according to the characteristics of the object being lifted.

[0015] Secondly, the opening of the two hooks can be precisely adjusted by using the opening mechanism. A smaller opening ensures that small objects are firmly gripped, while a larger opening allows for the complete wrapping and clamping of large materials, effectively solving the compatibility defects of traditional equipment. The hooks are installed and fixed on the mounting base by the connecting mechanism, which facilitates the hoisting of different objects. The opening of the two hooks can be adjusted by the opening mechanism. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the hook replacement structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the shell structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the L-shaped connecting rod structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the mounting base structure of this utility model.

[0023] Figure 7 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0024] The following are the labeling elements in the figure:

[0025] 1. Housing; 11. Connecting plate; 12. Mounting plate; 13. Mounting base; 14. Grab hook; 2. Hydraulic rod; 21. Moving block; 22. Connecting block; 23. Connecting rod a; 24. L-shaped connecting rod; 25. Connecting groove; 26. Fixed cylinder; 27. Connecting rod b; 3. Mounting groove; 31. Threaded hole; 32. Mounting block; 33. Hole groove; 34. Through hole; 35. Mounting bolt. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "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 application 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 application.

[0029] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1

[0030] As attached Figure 1 , Figure 2 and Figure 3 The adjustable opening crane grab hook shown includes: a housing 1, two symmetrically arranged connecting plates 11 fixedly connected to the top of the housing 1, mounting plates 12 fixedly connected to the top of the two connecting plates 11, two symmetrically arranged mounting seats 13 provided below the housing 1, each mounting seat 13 having a grab hook 14, an opening mechanism provided on the housing 1 for controlling the opening and closing degree of the two grab hooks 14, and a connecting mechanism provided on the mounting seats 13 for installing and fixing the grab hooks 14.

[0031] Specifically: When in use, the mounting plate 12 is connected to the lifting mechanism, and the appropriate grab hook 14 is selected and installed according to the object to be lifted. The grab hook 14 is installed and fixed on the mounting base 13 through the connecting mechanism, so as to facilitate the lifting of different objects. The opening of the two grab hooks 14 can be adjusted through the opening mechanism. Adjusting the opening of the grab hooks to a smaller size can ensure a firm grip, while adjusting the opening of the grab hooks to a larger size can allow the grab hooks to completely wrap or clamp the material, ensuring that the gripping range covers the entire material and preventing the inability to grip or the gripping to be unstable due to insufficient opening. Example 2

[0032] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0033] The opening mechanism includes: a hydraulic rod 2, a moving block 21, a connecting block 22, a connecting rod a23, and an L-shaped connecting rod 24. The hydraulic rod 2 is fixedly installed on the top of the housing 1. The bottom end of the output end of the hydraulic rod 2 extends to the housing 1 and is fixedly connected to the moving block 21. Two symmetrically distributed connecting blocks 22 are fixedly connected to the outside of the moving block 21. The bottom of the connecting block 22 is rotatably connected to the connecting rod a23 on opposite sides. The L-shaped connecting rod a23 is rotatably connected to the L-shaped connecting rod 24 on opposite sides near the middle. The L-shaped connecting rod 24 is rotatably connected to the inner wall of the housing 1 on opposite sides near the middle. The top of the mounting base 13 is provided with a connecting groove 25. The bottom of the L-shaped connecting rod 24 is rotatably connected to the inner wall of the connecting groove 25 on opposite sides. Fixed cylinders 26 are fixedly connected to the inner wall of the housing 1 on opposite sides near the bottom. A connecting rod b27 is rotatably connected between the two opposite fixed cylinders 26. The bottom of the connecting rod b27 is rotatably connected to the inner wall of the connecting groove 25 on opposite sides on opposite sides.

[0034] Specifically: When the opening of the two gripping hooks 14 is increased, the hydraulic rod 2 pushes the moving block 21 and the connecting block 22 downward. The connecting block 22 drives the connecting rod a23 downward. The bottom of the connecting rod a23 connects to the top of the L-shaped connecting rod 24, causing the two L-shaped connecting rods 24 to deflect in opposite directions. The deflection of the L-shaped connecting rods 24 causes the mounting base 13 and the gripping hooks 14 to deflect in the same direction. The connecting rod b27 acts as a constraint, causing the mounting base 13 to rotate around the bottom of the connecting rod b27, causing the bottom ends of the two gripping hooks 14 to separate to both sides to achieve the opening and closing action. When the opening of the two gripping hooks 14 is decreased, the output end of the hydraulic rod 2 is controlled to retract, causing the moving block 21 and the connecting block 22 to move upward, causing the gripping hooks 14 to move closer to each other according to the opposite principle, causing the bottom ends of the two gripping hooks 14 to move towards the center to achieve the gripping action. Example 3

[0035] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0036] The connecting mechanism includes: mounting groove 3, threaded hole 31, mounting block 32, slot 33, through hole 34 and mounting bolt 35. The mounting base 13 has a mounting groove 3 at the bottom and a threaded hole 31 at the top. The top of the hook 14 is fixedly connected to the mounting block 32. The two hooks 14 have slots 33 on opposite sides. The top of the slots 33 has a through hole 34 corresponding to the threaded hole 31. The through hole 34 is provided with a mounting bolt 35 inside. The top of the mounting bolt 35 extends into the threaded hole 31. The mounting groove 3 and the mounting block 32 are arranged in a T-shape. The mounting block 32 is slidably connected in the mounting groove 3.

[0037] Specifically: When installing the grab hook 14, the mounting block 32 on the top of the grab hook 14 is aligned with the mounting groove 3 and inserted, so that the through hole 34 is opposite to the threaded hole 31. Then, the mounting bolt 35 is inserted into the through hole 34 and screwed into the threaded hole 31, thereby connecting the grab hook 14 to the mounting base 13, thus completing the installation of the grab hook 14.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable opening travel grab hook, characterized in that, include: The housing (1) has two symmetrically arranged connecting plates (11) fixedly connected to the top of the housing (1), and two mounting plates (12) fixedly connected to the top of the two connecting plates (11). The housing (1) has two symmetrically arranged mounting seats (13) at the bottom, and each mounting seat (13) has a grab hook (14) at the bottom. An opening mechanism is provided on the housing (1) and is used to control the opening degree of the two grippers (14). The opening mechanism includes: a hydraulic rod (2), a moving block (21), a connecting block (22), a connecting rod a (23), and an L-shaped connecting rod (24). A connecting mechanism is provided on the mounting base (13) for installing and fixing the grab hook (14). The connecting mechanism includes: mounting groove (3), threaded hole (31), mounting block (32), hole groove (33), through hole (34) and mounting bolt (35).

2. An adjustable opening running grabber according to claim 1, characterized in that, A hydraulic rod (2) is fixedly installed on the top of the housing (1). The bottom end of the output end of the hydraulic rod (2) extends to the housing (1) and is fixedly connected to a moving block (21). Two symmetrically distributed connecting blocks (22) are fixedly connected to the outside of the moving block (21). Connecting rods a (23) are rotatably connected to the bottom of the connecting blocks (22) on opposite sides. An L-shaped connecting rod (24) is rotatably connected inside the connecting rod a (23). The opposite sides of the L-shaped connecting rod (24) near the middle are rotatably connected to the opposite sides of the inner wall of the housing (1).

3. The adjustable opening running grab hook of claim 1, wherein, The mounting base (13) has a mounting groove (3) at the bottom and a threaded hole (31) at the top. The top of the hook (14) is fixedly connected to a mounting block (32). The two hooks (14) have slots (33) on opposite sides. The top of the slots (33) has a through hole (34) corresponding to the threaded hole (31). The through hole (34) has a mounting bolt (35) inside. The top of the mounting bolt (35) extends into the threaded hole (31).

4. The adjustable opening running grab hook of claim 2, wherein, The top of each mounting base (13) is provided with a connecting groove (25), and the bottom sides of the L-shaped connecting rod (24) are rotatably connected to the inner wall of the connecting groove (25).

5. An adjustable opening running hook according to claim 4, wherein, The housing (1) has a fixed cylinder (26) fixedly connected to the inner wall of opposite sides near the bottom. A connecting rod b (27) is rotatably connected between the two opposite fixed cylinders (26). The bottom of the connecting rod b (27) is rotatably connected to the inner wall of the connecting groove (25) on opposite sides.

6. The adjustable opening running grab handle of claim 3, wherein, The mounting groove (3) and the mounting block (32) are arranged in a T-shape, and the mounting block (32) is slidably connected in the mounting groove (3).

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