Crane lifting lug capable of avoiding falling off

Abstract

The anti-falling crane lifting lug comprises a lifting plate, slings are fixedly installed at the four corners of the top of the lifting plate, a connecting rope is fixedly installed at the bottom of the lifting plate, a hook is fixedly installed at the bottom end of the connecting rope, a through hole is formed in the left side of the bottom of the lifting plate, and a stand column is slidably installed on the inner side wall of the through hole; the bottom of the hanging plate is provided with a stand column, the top end of the stand column is provided with a buffer mechanism, the bottom end of the stand column is fixedly provided with a first arc plate, the arc surface of the right side face of the first arc plate is fixedly provided with a semi-ring body, and the semi-ring body is located under the hook. The semi-ring body can be located at the bottom of the hook, when the hook or the connecting cable is broken, a heavy object can be borne and hung through the semi-ring body, and the danger caused by falling of the heavy object is avoided.

Description

Technical Field

[0001] This patent relates to the technical field of crane lifting eyes, specifically a crane lifting eye that can prevent it from falling off. Background Art

[0002] The lifting lug of a crane is used to lift heavy objects and then transport them. Most of the existing lifting lugs are composed of a lifting plate and a bottom hook. The lifting plate and the hook are connected by a connecting rope. However, with long-term use, the connecting rope or the hook is prone to damage. If it cannot be repaired in time, it is easy to break during the lifting process, which may cause danger. For this reason, we propose a crane lifting lug that can avoid falling off.

[0003] Patent content

[0004] The purpose of this patent is to provide a crane lifting eye that can prevent falling off, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present patent provides the following technical solutions: a crane lifting ear that prevents falling off, comprising a hanging plate, slings are fixedly installed at the four corners of the top of the hanging plate, a connecting rope is fixedly installed at the bottom of the hanging plate, a hook is fixedly installed at the bottom end of the connecting rope, a through hole is provided on the left side of the bottom of the hanging plate, a column is slidably installed on the inner side wall of the through hole, a buffer mechanism is provided on the top of the column, a first arc plate is fixedly installed at the bottom end of the column, a semi-ring body is fixedly installed on the right side arc surface of the first arc plate, and the semi-ring body is located directly below the hook;

[0006] The hook does not contact the semi-ring body.

[0007] Preferably, the buffer mechanism includes a vertical tube and a spring, the bottom end of the vertical tube is fixedly mounted on the top of the hanging plate, a sliding plate is slidably mounted on the inner side wall of the vertical tube, the top end of the column is fixedly mounted on the bottom of the sliding plate, the spring is sleeved on the side wall of the column, the top end of the spring is fixedly mounted on the bottom of the sliding plate, and the bottom end of the spring is fixedly mounted on the top of the hanging plate.

[0008] Preferably, a rubber layer is embedded on the inner side wall of the vertical pipe, and the side wall of the sliding plate is in relative contact with and fits with the inner side wall of the rubber layer.

[0009] Preferably, an arc-shaped groove is provided on the inner side wall of the semi-ring body, and the hook is located in the arc-shaped groove.

[0010] Preferably, a through hole is provided on the right side of the bottom of the hanging plate, a reinforcing column is slidably installed on the inner wall of the through hole, a buffer mechanism is provided on the top of the reinforcing column, a second arc plate is fixedly installed on the bottom end of the reinforcing column, and the left arc surface of the second arc plate is fixedly installed on the outer wall of the semi-ring body.

[0011] Preferably, the reinforcing column includes a first column and a second column, the top end of the first column is connected to the buffer mechanism, the bottom end of the first column is hinged to the top end of the second column, and the bottom end of the second column is connected to the second arc plate.

[0012] Preferably, a thread groove is provided on the right side surface of the second arc plate, a mounting hole is provided on the second column, a bolt is provided in the mounting hole, and the left end of the bolt is screwed into the thread groove.

[0013] Compared with the prior art, the beneficial effects of this patent are: this patent installs a column at the bottom of the hanging plate, and a semi-ring body is installed at the bottom of the column through the first arc plate. The semi-ring body can be located at the bottom of the hook. When the hook or the connecting rope breaks, the heavy object can be supported and hung by the semi-ring body to avoid the danger of heavy objects falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall three-dimensional diagram of this patent.

[0015] Figure 2 This is the overall plan view of this patent.

[0016] Figure 3 This is a schematic diagram of a semi-ring body of this patent.

[0017] Figure 4 This is a schematic diagram of the buffer mechanism of this patent.

[0018] In the figure: 1, hanging plate, 2, hanging rope, 3, connecting rope, 4, hook, 5, column, 6, first arc plate, 7, semi-ring, 8, buffer mechanism, 9, vertical pipe, 10, sliding plate, 11, spring, 12, rubber layer, 13, arc groove, 14, reinforcing column, 15, second arc plate, 16, first column, 17, second column, 18, bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0020] See also Figure 1 , Figure 2 , Figure 3 and Figure 4This patent provides a technical solution: a crane lifting ear that prevents falling off, including a hanging plate 1, a sling 2 is fixedly installed at the four corners of the top of the hanging plate 1, a connecting rope 3 is fixedly installed at the bottom of the hanging plate 1, a hook 4 is fixedly installed at the bottom end of the connecting rope 3, a through hole is provided on the left side of the bottom of the hanging plate 1, a column 5 is slidably installed on the inner side wall of the through hole, a buffer mechanism 8 is provided on the top of the column 5, a first arc plate 6 is fixedly installed at the bottom end of the column 5, a semi-ring body 7 is fixedly installed on the right side arc surface of the first arc plate 6, and the semi-ring body 7 is located directly below the hook 4;

[0021] The hook 4 does not contact the semi-ring body 7 .

[0022] Specifically, the buffer mechanism 8 includes a vertical pipe 9 and a spring 11. The bottom end of the vertical pipe 9 is fixedly mounted on the top of the hanging plate 1. The inner wall of the vertical pipe 9 is slidably mounted with a sliding plate 10. The top end of the column 5 is fixedly mounted on the bottom of the sliding plate 10. The spring 11 is sleeved on the side wall of the column 5. The top end of the spring 11 is fixedly mounted on the bottom of the sliding plate 10, and the bottom end of the spring 11 is fixedly mounted on the top of the hanging plate 1.

[0023] like Figure 1 , 2 As shown, when the connecting rope 3 breaks, the hook 4 can fall on the semi-ring body 7, and the gravity of the heavy object will also act on the semi-ring body 7. The column 5 drives the sliding plate 10 to move downward, and the spring 11 (made of high-strength material) can be compressed to play a buffering role of gravity, thereby preventing the downward pressure of the heavy object from directly acting on the hanging plate 1.

[0024] The downward pressure of the heavy object will compress the spring 11, and at this time the spring 11 will not vibrate repeatedly (the vibration of the spring 11 is not enough to make the heavy object vibrate up and down), so the spring 11 does not have a shock-absorbing effect, but only a buffering effect.

[0025] Specifically, a rubber layer 12 is embedded on the inner wall of the vertical pipe 9 , and the side wall of the sliding plate 10 is in relative contact with and in contact with the inner wall of the rubber layer 12 .

[0026] By providing the rubber layer 12 , when the sliding plate 10 slides downward, the sliding friction between the side wall of the sliding plate 10 and the rubber layer 12 is used to cooperate with the spring 11 to buffer the downward pressure of the heavy object.

[0027] Specifically, an arc-shaped groove 13 is provided on the inner side wall of the semi-ring body 7 , and the hook 4 is located in the arc-shaped groove 13 .

[0028] Although the hook 4 is located in the arc-shaped groove 13, Figure 2 The middle hook 4 does not contact the inner side wall of the arc-shaped groove 13, so as to limit the hook 4 to directly enter the arc-shaped groove 13 when it falls.

[0029] Specifically, a through hole is provided on the right side of the bottom of the hanging plate 1, and a reinforcing column 14 is slidably installed on the inner wall of the through hole. A buffer mechanism 8 is provided on the top of the reinforcing column 14, and a second arc plate 15 is fixedly installed on the bottom end of the reinforcing column 14. The left arc surface of the second arc plate 15 is fixedly installed on the outer wall of the semi-ring body 7.

[0030] The reinforcement column 14 is provided to increase the bearing strength of the semi-ring body 7 .

[0031] Specifically, the reinforcing column 14 includes a first column 16 and a second column 17 . The top end of the first column 16 is connected to the buffer mechanism 8 , the bottom end of the first column 16 is hinged to the top end of the second column 17 , and the bottom end of the second column 17 is connected to the second arc plate 15 .

[0032] Specifically, a thread groove is provided on the right side surface of the second arc plate 15, a mounting hole is provided on the second column 17, a bolt 18 is provided in the mounting hole, and the left end of the bolt 18 is screwed into the thread groove.

[0033] Working principle: Figure 2 As shown, the bolt 18 can be removed, and then the second column 17 is flipped along the hinge position of the first column 16 and the second column 17. The sling 2 (the sling 2 is connected to the crane) drives the hanging plate 1 to move above the heavy object. The staff hooks the hook 4 onto the rope on the heavy object, and then reconnects the second column 17 to the second arc plate 15 through the bolt 18. The crane controls the lifting. When the connecting rope 3 or the hook 4 breaks during the lifting process, the hook 4 can fall completely into the arc groove 13. At the same time, the gravity of the heavy object will also act on the semi-ring body 7. The column 5 drives the sliding plate 10 to move downward, and the spring 11 is compressed to buffer the gravity and prevent the downward pressure of the heavy object from directly acting on the hanging plate 1.

[0034] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0035] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0036] Although the embodiments of the present patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. A crane lifting eye for preventing falling off, characterized in that: The invention comprises a hanging plate (1), wherein the four corners of the top of the hanging plate (1) are all fixedly installed with hanging ropes (2), the bottom of the hanging plate (1) is fixedly installed with a connecting rope (3), the bottom end of the connecting rope (3) is fixedly installed with a hook (4), a through hole is provided on the left side of the bottom of the hanging plate (1), a column (5) is slidably installed on the inner side wall of the through hole, a buffer mechanism (8) is provided on the top of the column (5), a first arc plate (6) is fixedly installed on the bottom end of the column (5), a semi-ring body (7) is fixedly installed on the arc surface of the right side of the first arc plate (6), and the semi-ring body (7) is located directly below the hook (4); The hook (4) does not contact the semi-ring body (7).

2. A crane lifting eye for preventing falling off according to claim 1, characterized in that: The buffer mechanism (8) comprises a vertical pipe (9) and a spring (11); the bottom end of the vertical pipe (9) is fixedly mounted on the top of the hanging plate (1); a sliding plate (10) is slidably mounted on the inner wall of the vertical pipe (9); the top end of the column (5) is fixedly mounted on the bottom of the sliding plate (10); the spring (11) is sleeved on the side wall of the column (5); the top end of the spring (11) is fixedly mounted on the bottom of the sliding plate (10); and the bottom end of the spring (11) is fixedly mounted on the top of the hanging plate (1).

3. A crane lifting eye for preventing falling off according to claim 2, characterized in that: A rubber layer (12) is embedded on the inner side wall of the vertical pipe (9), and the side wall of the sliding plate (10) is in relative contact with and in contact with the inner side wall of the rubber layer (12).

4. A crane lifting eye for preventing falling off according to claim 1, characterized in that: An arc-shaped groove (13) is provided on the inner side wall of the semi-ring body (7), and the hook (4) is located in the arc-shaped groove (13).

5. The crane lifting eye for preventing falling off according to claim 1, characterized in that: A through hole is provided on the right side of the bottom of the hanging plate (1), a reinforcing column (14) is slidably mounted on the inner wall of the through hole, a buffer mechanism (8) is provided on the top of the reinforcing column (14), a second arc plate (15) is fixedly mounted on the bottom end of the reinforcing column (14), and the left arc surface of the second arc plate (15) is fixedly mounted on the outer wall of the semi-ring body (7).

6. A crane lifting eye for preventing falling off according to claim 5, characterized in that: The reinforcing column (14) comprises a first column (16) and a second column (17), the top end of the first column (16) is connected to the buffer mechanism (8), the bottom end of the first column (16) is hinged to the top end of the second column (17), and the bottom end of the second column (17) is connected to the second arc plate (15).

7. A crane lifting eye for preventing falling off according to claim 6, characterized in that: The right side surface of the second arc plate (15) is provided with a thread groove, and the second column (17) is provided with a mounting hole, in which a bolt (18) is provided, and the left end of the bolt (18) is screwed into the thread groove.

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