Lifting mechanical arm

Abstract

The lifting mechanical arm comprises a supporting frame, a mechanical arm body and a lifting hook, the mechanical arm body is arranged at the upper end of the supporting frame, one end of the mechanical arm body is connected with a connecting base through an inhaul cable, a connecting groove is formed in the bottom end of the connecting base, and a mounting base is connected to the interior of the connecting groove; the lifting hook is fixedly connected to the bottom end of the mounting base, a fixing frame is fixedly connected to the side, away from the opening, of the lifting hook, a sliding base is movably connected to the interior of the fixing frame, connecting rods are hinged to the two ends of the sliding base, and a limiting rod is fixedly connected between the ends, away from the sliding base, of the two connecting rods. By rotating the second threaded rod, the sliding seat is far away from the lifting hook, and the limiting rod is pulled to be clamped in the limiting groove under the connection of the connecting rod, so that the opening of the lifting hook is closed, and goods are prevented from being unhooked in the lifting process.

Description

Technical Field

[0001] This utility model relates to the field of lifting robotic arm technology, specifically a lifting robotic arm. Background Technology

[0002] A lifting boom is an important component of a crane, primarily used to support suspended loads and provide the loading / unloading bridge with a certain lifting height and width. It is typically constructed of metal structural components and achieves pitching or telescopic movement via supporting lifting ropes, a lifting device, or a luffing trolley, thereby changing the crane's amplitude and lifting height.

[0003] Lifting robotic arms are usually used in conjunction with hooks, but some lifting robotic arms do not have limit switches on their hooks, which makes it easy for items to come off the hook during the lifting process. In addition, most hooks are fixedly installed, which limits the number of items that can be hooked off. Therefore, they do not meet the existing needs. To address this, we have proposed a new type of lifting robotic arm. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting robotic arm to solve the problems mentioned in the background art, which are that lifting robotic arms are usually used in conjunction with hooks, but some lifting robotic arms have hooks without limiters, which makes it easy for items to fall off during the lifting process, and some hooks are mostly fixed, thus limiting the number of items that can be hooked off.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting robotic arm, comprising a support frame, a robotic arm, and a hook. The robotic arm is disposed at the upper end of the support frame. One end of the robotic arm is connected to a connecting seat via a cable. A connecting groove is provided at the bottom end of the connecting seat. A mounting seat is connected inside the connecting groove. The hook is fixedly connected to the bottom end of the mounting seat. A fixing frame is fixedly connected to the side of the hook away from the opening. A sliding seat is movably connected inside the fixing frame. Connecting rods are hinged to both ends of the sliding seat. A limit rod is fixedly connected between the ends of the two connecting rods away from the sliding seat.

[0006] Preferably, both sides of the inner wall of the connecting groove are fixedly connected, and both sides of the outer surface of the mounting base are provided with slots corresponding to the locking blocks, and the locking blocks engage with the corresponding slots.

[0007] Preferably, the outer surface of the connector is provided with first threaded holes on both sides, and the outer surface of the mounting base away from the slot is provided with a second threaded hole corresponding to the first threaded hole.

[0008] Preferably, a first threaded rod is threadedly connected between the corresponding first threaded hole and the second threaded hole.

[0009] Preferably, the side of the sliding seat away from the hook is rotatably connected to a second threaded rod via a pivot, and one end of the second threaded rod extends through the thread to the outside of the fixed frame.

[0010] Preferably, a limiting groove is provided at the bottom end of the hook opening side, and the limiting rod is movably engaged inside the limiting groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model connects the mounting base at the upper end of the hook to the connecting groove, and makes the groove slide and engage with the outer surface of the block, so that the first threaded hole and the second threaded hole correspond. Then, the first threaded rod can be threaded through the first threaded hole and the second threaded hole in sequence, thereby fixing the hook to the bottom end of the robotic arm and making it convenient to install the appropriate hook according to the number of goods to be lifted.

[0013] 2. This utility model involves hooking the goods to be lifted onto the hook, then rotating the second threaded rod clockwise so that the thread of the second threaded rod passes through the fixed frame and rotates to one side of the sliding seat, thereby pushing the sliding seat closer to the hook. Then, with the connection of the connecting rod, the limiting rod is driven away from the hook. When the limiting rod aligns with the limiting groove, the second threaded rod is rotated in the opposite direction, so that the sliding seat is moved away from the hook, and with the connection of the connecting rod, the limiting rod is pulled and locked into the limiting groove, thereby closing the opening of the hook and preventing the goods from coming off the hook during the lifting process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the connecting seat and hook of this utility model;

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Support frame; 2. Robotic arm; 3. Connecting seat; 301. Connecting groove; 302. First threaded hole; 4. Hook; 401. Limiting groove; 5. Mounting seat; 501. Slot; 502. Second threaded hole; 6. Locking block; 7. First threaded rod; 8. Fixing frame; 9. Sliding seat; 10. Second threaded rod; 11. Connecting rod; 12. Limiting rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 3 The present invention provides an embodiment of a lifting robotic arm, comprising a support frame 1, a robotic arm 2, and a hook 4. The robotic arm 2 is located at the upper end of the support frame 1. One end of the robotic arm 2 is connected to a connecting seat 3 via a cable. A connecting groove 301 is provided at the bottom end of the connecting seat 3. An installation seat 5 is connected inside the connecting groove 301. The hook 4 is fixedly connected to the bottom end of the installation seat 5. A fixing frame 8 is fixedly connected to the side of the hook 4 away from the opening. A sliding seat 9 is movably connected inside the fixing frame 8. Connecting rods 11 are hinged to both ends of the sliding seat 9. A limit rod 12 is fixedly connected between the ends of the two connecting rods 11 away from the sliding seat 9.

[0020] Both sides of the inner wall of the connecting groove 301 are fixedly connected to the mounting base 5. Both sides of the outer surface of the mounting base 5 are provided with slots 501 corresponding to the locking block 6, and the locking block 6 is engaged with the corresponding slot 501. Both sides of the outer surface of the connecting base 3 are provided with first threaded holes 302. The side of the outer surface of the mounting base 5 away from the slot 501 is provided with a second threaded hole 502 corresponding to the first threaded hole 302. A first threaded rod 7 is threadedly connected between the corresponding first threaded hole 302 and second threaded hole 502.

[0021] By inserting the mounting base 5 at the upper end of the hook 4 into the connecting groove 301, and making the slot 501 slide and engage with the outer surface of the block 6, the first threaded hole 302 and the second threaded hole 502 correspond. Then, the first threaded rod 7 can be threaded through the first threaded hole 302 and the second threaded hole 502 in sequence, thereby fixing the hook 4 to the bottom end of the robotic arm 2.

[0022] The sliding seat 9 is rotatably connected to the second threaded rod 10 on the side away from the hook 4 via a rotating shaft, and one end of the second threaded rod 10 is threaded through and extends to the outside of the fixed frame 8. A limit groove 401 is opened at the bottom end of the opening side of the hook 4, and the limit rod 12 is movably engaged in the inside of the limit groove 401.

[0023] By rotating the second threaded rod 10 clockwise, the thread of the second threaded rod 10 passes through the fixed frame 8 and rotates to one side of the sliding seat 9, thereby pushing the sliding seat 9 closer to the hook 4. Then, under the connection of the connecting rod 11, the limiting rod 12 is driven away from the hook 4. When the limiting rod 12 corresponds with the limiting groove 401, the second threaded rod 10 is rotated in the opposite direction, so that the sliding seat 9 is moved away from the hook 4, and under the connection of the connecting rod 11, the limiting rod 12 is pulled and locked into the limiting groove 401.

[0024] When the lifting robotic arm is in use, the mounting base 5 at the upper end of the hook 4 is inserted into the connecting groove 301, and the slot 501 is slidably engaged with the outer surface of the block 6, so that the first threaded hole 302 and the second threaded hole 502 correspond. Then, the first threaded rod 7 can be threaded through the first threaded hole 302 and the second threaded hole 502 in sequence, thereby fixing the hook 4 to the bottom end of the robotic arm 2, and making it convenient to install the appropriate hook 4 according to the number of goods to be lifted.

[0025] After the hook 4 is installed, the goods to be lifted are hooked onto the hook 4. Then, the second threaded rod 10 is rotated clockwise so that the thread of the second threaded rod 10 passes through the fixed frame 8 and rotates to one side of the sliding seat 9, thereby pushing the sliding seat 9 closer to the hook 4. Then, under the connection of the connecting rod 11, the limiting rod 12 is driven away from the hook 4. When the limiting rod 12 corresponds with the limiting groove 401, the second threaded rod 10 is rotated in the opposite direction so that the sliding seat 9 is away from the hook 4. Under the connection of the connecting rod 11, the limiting rod 12 is pulled and locked into the limiting groove 401, thereby closing the opening of the hook 4 and preventing the goods from falling off the hook during the lifting process.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hoisting manipulator comprising a support frame (1), a manipulator (2) and a hook (4), the manipulator (2) being arranged at the upper end of the support frame (1), characterized in that: One end of the mechanical arm (2) is connected with a connecting seat (3) through a cable, the bottom end of the connecting seat (3) is provided with a connecting groove (301), the inside of the connecting groove (301) is connected with a mounting seat (5), the hook (4) is fixedly connected to the bottom end of the mounting seat (5), the hook (4) is fixedly connected with a fixing frame (8) away from the opening side, the inside of the fixing frame (8) is movably connected with a sliding seat (9), both ends of the sliding seat (9) are hingedly connected with connecting rods (11), the ends of the two connecting rods (11) away from the sliding seat (9) are fixedly connected with a limiting rod (12).

2. A hoisting arm according to claim 1, characterized in that: Both sides of the inner wall of the connecting groove (301) are fixedly connected with the mounting seat (5), the outer surface of the mounting seat (5) is provided with a clamping groove (501) corresponding to the clamping block (6) on both sides, and the clamping block (6) is clamped with the corresponding clamping groove (501).

3. A hoisting arm according to claim 2, characterized in that: The outer surface of the connecting seat (3) is provided with a first threaded hole (302) on both sides, and the outer surface of the mounting seat (5) is provided with a second threaded hole (502) corresponding to the first threaded hole (302) away from the clamping groove (501).

4. A hoisting arm according to claim 3, characterized in that: The first threaded hole (302) and the second threaded hole (502) are threadedly connected with the first threaded rod (7).

5. The hoist arm of claim 1, wherein: The side of the sliding seat (9) away from the hook (4) is rotatably connected with a second threaded rod (10) through a rotating shaft, and one end of the second threaded rod (10) is threadedly extended to the outside of the fixing frame (8).

6. A hoisting arm according to claim 1, characterized in that: The bottom end of the opening side of the hook (4) is provided with a limiting groove (401), and the limiting rod (12) is movably clamped in the limiting groove (401).

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