Crane with anti-falling mechanism

Abstract

The utility model relates to the technical field of cranes, and discloses a crane with an anti-falling mechanism, which comprises a machine body, a connecting block is arranged on a mechanical arm of the machine body, a lifting hook is arranged at the bottom of the connecting block, a bent hook which is bent downwards is arranged at the tail end of the lifting hook, a bayonet is formed between the bent hook and the lifting hook, and the anti-falling mechanism is arranged in the bayonet. And an anti-falling mechanism is arranged at a lifting opening of the lifting hook. Due to the fact that the anti-disengaging plate in the anti-disengaging mechanism can rotate upwards and does not occupy the internal space of the lifting hook, the lifting hook can lift a lifting belt with a large size, the application range is expanded, the bent hook is arranged at the outer end of the lifting hook, after the lifting belt is installed, the clamping column in the anti-disengaging mechanism is clamped at the clamping opening formed by the bent hook and the lifting hook by rotating the anti-disengaging plate, and therefore the lifting hook is convenient to use. And the lifting belt is prevented from falling off from the lifting hook.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane with an anti-falling mechanism. Background Art

[0002] Crane is a general term for mechanical equipment that can lift, move, and transport materials and personnel. Among them, a beam crane is a crane composed of a bridge and a lifting trolley. The bridge moves longitudinally along the ground track, and the lifting trolley moves laterally along the bridge.

[0003] Announcement No. CN219259322U discloses a crane hook, including a hook body, a fixing rod longitudinally fixed to the middle part of the hook body, a connecting plate for connecting to the crane boom is provided at one end of the fixing rod, and anti-slip components are symmetrically arranged on the fixing rod at a center interval of the fixing rod. The anti-slip components are used to close the opening of the hook body to prevent the heavy object from being detached.

[0004] However, in the above solution, the anti-drop plate rotates inside the hook, which occupies the internal space of the hook. As a result, when a sling with a larger size is installed, the sling may easily hinder the anti-drop plate from being reset.

[0005] Therefore, we propose a crane with an anti-falling mechanism to solve the above-mentioned problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art in the above-mentioned background technology, the purpose of the utility model is to provide a crane with an anti-falling mechanism to solve the problems raised in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A crane with an anti-falling mechanism comprises a machine body, a connecting block is arranged on the mechanical arm of the machine body, a hook is arranged at the bottom of the connecting block, a downwardly bent curved hook is arranged at the tail end of the hook, a bayonet is formed between the curved hook and the hook, and an anti-falling mechanism is arranged at the lifting opening of the hook.

[0011] The anti-slip mechanism includes a fixing seat fixed at the bottom of the connecting block and two anti-slip plates arranged opposite to each other. One end of the anti-slip plate is hinged to the fixing seat, and the other end is slidably mounted with a clamping column engaged with the bayonet. A convex plate is arranged on the anti-slip plate, and a tension spring is arranged between the clamping column and the convex plate.

[0012] Furthermore, the two anti-slip plates are symmetrically arranged on both sides of the hook, and the convex plate is arranged on the side wall of the anti-slip plate away from the hook.

[0013] Furthermore, a sliding groove is provided on one end of the anti-slip plate away from the fixing seat, and the clamping column is slidably installed in the sliding groove.

[0014] Furthermore, a mounting groove is provided on one side of the clamping column close to the convex plate, and two ends of the tension spring are respectively fixed to the bottom wall of the mounting groove and the side wall of the convex plate.

[0015] Preferably, a limiting rod extending along the length direction of the anti-drop plate is fixed to the side wall of the convex plate, the clamping column is provided with a sliding hole slidably connected to the limiting rod, and the tension spring is sleeved on the outside of the limiting rod.

[0016] Preferably, a reinforcing rod is provided on the anti-slip plate, and the anti-slip plate and the hook are provided with insertion holes adapted to the reinforcing rod, and the reinforcing rod is plugged into the anti-slip plate and the hook through the insertion holes.

[0017] Preferably, a pull ring is provided on the reinforcement rod.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] Since the anti-slip plate in the anti-slip mechanism can be rotated upward and will not occupy the internal space of the hook, the hook can be used to lift a sling of a larger size, thereby expanding the scope of application; and by arranging a curved hook at the outer end of the hook, after the sling is installed, the anti-slip plate can be rotated to clamp the clamping column in the anti-slip mechanism at the clamping opening formed by the curved hook and the hook, so as to prevent the sling from falling off the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a crane with an anti-falling mechanism according to the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of a crane with an anti-falling mechanism according to the utility model;

[0023] Figure 3 It is a schematic diagram of the anti-falling mechanism of the crane with the anti-falling mechanism of the utility model;

[0024] Figure 4 The utility model is a schematic diagram of the clamping column structure of the crane with an anti-falling mechanism.

[0025] In the figure: connecting block 1, hook 2, curved hook 3, bayonet 4, anti-slip mechanism 5, fixing seat 51, anti-slip plate 52, slide groove 53, clamping column 54, convex plate 55, mounting groove 56, tension spring 57, limiting rod 58, slide hole 59, reinforcement rod 6, and socket 7. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 As shown, the utility model provides a crane with an anti-falling mechanism, including a body 8, a connecting block 1 is arranged on the mechanical arm of the body 8, a hook 2 is arranged at the bottom of the connecting block 1, a downwardly bent hook 3 is arranged at the tail end of the hook 2, a bayonet 4 is formed between the curved hook 3 and the hook 2, and an anti-falling mechanism 5 is arranged at the lifting mouth of the hook 2.

[0028] like Figure 3 and Figure 4 As shown, the anti-slip mechanism 5 includes a fixed seat 51, an anti-slip plate 52, a clamping column 54, a convex plate 55, a tension spring 57 and a limiting rod 58. The fixed seat 51 is fixed at the bottom of the connecting block 1. Two anti-slip plates 52 are symmetrically arranged about the hook 2. One end of the two anti-slip plates 52 is hinged to the two sides of the connecting block 1 respectively. When working, the other end of the anti-slip plate 52 extends toward the bayonet 4. A sliding groove 53 is opened on the anti-slip plate 52 along its length direction. The clamping column 54 is slidably installed in the sliding groove 53. The two ends of the clamping column 54 pass through the two sliding grooves 53 and extend outward. A convex plate 55 is fixed on the side wall of the anti-slip plate 52 away from the hook 2. A mounting groove 56 is opened on the side of the clamping column 54 close to the convex plate 55. The two ends of the tension spring 57 are respectively fixed on the bottom wall of the mounting groove 56 and the side wall of the convex plate 55.

[0029] First, rotate the anti-slip plate 52 upwards, then hang the sling on the hook, and then rotate the anti-slip plate 52 downwards. When the clamping column 54 contacts the top of the curved hook 3, since the top of the curved hook 3 is an arc-shaped surface, when the anti-slip plate 52 is rotated downward, the tension spring 57 extends. When the anti-slip plate 52 is rotated to the bayonet 4, the tension spring 57 retracts, and the clamping column 54 is clamped in the bayonet 4, thereby fixing the anti-slip plate 52. The anti-slip plate 52 prevents the sling from falling off.

[0030] As a preferred technical solution of the utility model: a limiting rod 58 extending along the length direction of the anti-slip plate 52 is fixed to the side wall of the convex plate 55, and the clamping column 54 is provided with a sliding hole 59 slidably connected to the limiting rod 58, and the tension spring 57 is sleeved on the outside of the limiting rod 58. The setting of the limiting rod 58 has a limiting effect on the clamping column 54 to prevent it from rotating in the sliding groove 53.

[0031] As a preferred technical solution of the utility model: a reinforcement rod 6 is arranged on the anti-drop plate 52, and a pull ring is arranged on the reinforcement rod 6. The anti-drop plate 52 and the hook 2 are both provided with a socket 7 adapted to the reinforcement rod 6. The reinforcement rod 6 is connected with the anti-drop plate 52 and the hook 2 through the socket 7. The arrangement of the reinforcement rod 6 can reduce the load between the anti-drop plate 52 and the fixed seat 51 during operation, and enhance the stability of the anti-drop plate 52.

[0032] As a preferred technical solution of the utility model: the two ends of the clamping column 54 pass through the two slide grooves 53 and extend outward. After the lifting is completed, the staff can pull the extended part of the clamping column 54 to disengage it from the clamping port, and anti-slip rubber pads can be installed on both ends of its side walls to play an anti-slip role.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms such as “set”, “install”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can also be indirectly connected through an intermediate medium.

[0034] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0035] For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A crane with an anti-falling mechanism, comprising a body (8), a connecting block (1) is arranged on a mechanical arm of the body (8), a hook (2) is arranged at the bottom of the connecting block (1), and is characterized in that: The tail end of the hook (2) is provided with a curved hook (3) bent downward, a bayonet (4) is formed between the curved hook (3) and the hook (2), and an anti-slip mechanism (5) is provided at the lifting opening of the hook (2); The anti-slip mechanism (5) comprises a fixing seat (51) fixed at the bottom of the connecting block (1) and two anti-slip plates (52) arranged opposite to each other, one end of the anti-slip plate (52) is hinged to the fixing seat (51), and the other end is slidably mounted with a clamping column (54) clamped to the bayonet (4), a convex plate (55) is arranged on the anti-slip plate (52), and a tension spring (57) is arranged between the clamping column (54) and the convex plate (55).

2. A crane with an anti-falling mechanism according to claim 1, characterized in that: The two anti-slip plates (52) are symmetrically arranged on both sides of the hook (2), and the convex plate (55) is arranged on the side wall of the anti-slip plate (52) away from the hook (2).

3. A crane with an anti-falling mechanism according to claim 2, characterized in that: A sliding groove (53) is provided on one end of the anti-slip plate (52) away from the fixing seat (51), and the clamping column (54) is slidably installed in the sliding groove (53).

4. A crane with an anti-falling mechanism according to claim 3, characterized in that: A mounting groove (56) is provided on one side of the clamping column (54) close to the convex plate (55), and two ends of the tension spring (57) are respectively fixed to the bottom wall of the mounting groove (56) and the side wall of the convex plate (55).

5. The crane with an anti-falling mechanism according to claim 4, characterized in that: A limiting rod (58) extending along the length direction of the anti-slip plate (52) is fixed to the side wall of the convex plate (55), a sliding hole (59) slidably connected to the limiting rod (58) is opened in the clamping column (54), and a tension spring (57) is sleeved on the outside of the limiting rod (58).

6. The crane with an anti-falling mechanism according to claim 1, characterized in that: The anti-slip plate (52) is provided with a reinforcing rod (6), and both the anti-slip plate (52) and the hook (2) are provided with a plug hole (7) adapted to the reinforcing rod (6), and the reinforcing rod (6) is plugged into the anti-slip plate (52) and the hook (2) through the plug hole (7).

7. The crane with an anti-falling mechanism according to claim 6, characterized in that: The reinforcement rod (6) is provided with a pull ring.

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