Intelligent safety lifting hook for crane

Abstract

According to the intelligent safety lifting hook for the crane, the lifting hook can be firmly buckled through the strong adsorption effect of an electromagnet, and potential safety hazards caused by the fact that a heavy object is separated from the lifting hook in the operation process are prevented. Meanwhile, a gravity sensor is arranged on the inner side, making contact with a heavy object, of the lifting hook, when the heavy object is sensed to be lifted in, a signal is sent to a system control assembly, an electromagnet is controlled to be powered on, and a motor drives a closing assembly to be closed; opening and closing of the closing assembly of the lifting hook can be automatically completed, so that an operator is far away from a lifted heavy object, and safety accidents are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cranes, and in particular to an intelligent safety hook for cranes. Background Art

[0002] Crane hook is a vital component of lifting machinery, and its main function is to carry and lift heavy objects. The rationality of its design and manufacturing is directly related to the safe operation of lifting machinery and the safety of personnel and property. Crane hooks are usually made of forgings, but they are also made of cast steel, bar heating and bending. Different types of hooks are suitable for cranes of different tonnages. During use, the crane hook may slip due to various reasons. It is necessary to regularly check and adjust the brake, electromagnet stroke, etc. to ensure that the hook can stably carry heavy objects.

[0003] In the prior art, most crane hooks are open-ended. Although they are convenient to use, when encountering objects with excessive elasticity or irregular shapes, the open hooks are likely to cause the objects to fall off the hooks before lifting, making them difficult to fix. In addition, there are also hooks with bayonet fastenings, but they are only simple mechanical fastenings that require manual operation. At the same time, the fastenings are not firm enough, and there are also safety hazards. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present application proposes an intelligent safety hook for a crane, which can firmly buckle the hook through the strong adsorption effect of the electromagnet to prevent the safety hazards caused by the heavy object falling off the hook during the operation. At the same time, the inner side of the hook of the present application that contacts the heavy object has a gravity sensor, which sends a signal to the system control component when it senses that a heavy object is hoisted in, controls the electromagnet to turn on the power, and then the motor drives the closing component to close; the opening and closing of the closing component of the hook can be completed automatically, so that the operator is away from the hoisting heavy object, reducing the occurrence of safety accidents.

[0005] The present application discloses an intelligent safety hook for a crane, comprising: a hook assembly, a closing assembly, an electromagnet, a component loading shell for fixing the hook assembly, a gravity sensing assembly arranged at the middle position inside the bottom of the hook assembly, and a connecting assembly fixedly installed on the top of the component loading shell;

[0006] A group of extensions are symmetrically arranged at the lower end of the closing component, and mounting holes are arranged on the extensions; a connecting through hole is arranged at the end of the hook component, and a rotating shaft passes through the mounting hole and the connecting through hole to connect the extension and the end of the hook component; a fixing part fixedly connected to the component loading shell is arranged at the front end of the hook component;

[0007] The rotating shaft is welded and fixed to the extension part, and a motor is provided at one end of the rotating shaft to drive the closing component to rotate; the upper end of the closing component has an attracting iron block that cooperates with the electromagnet to close;

[0008] The electromagnet has a mounting portion for fixedly connecting with the component loading shell and a yoke block for engaging with the downward hook block of the closing component; the core of the electromagnet is arranged inside the mounting portion; the upper surface of the gravity sensing component is smoothly connected and transitioned with the inner side of the hook component;

[0009] A system control component and a power supply are also fixedly installed inside the component loading shell. The system control component is electrically connected to the gravity sensing component, the motor and the electromagnet respectively, and the power supply is electrically connected to the system control component, the gravity sensing component, the motor and the electromagnet.

[0010] Furthermore, in the intelligent safety hook described in the present application, an alarm device is provided in the component loading shell, and the alarm device is electrically connected to the system control component.

[0011] The system control component also monitors the power supply. When the power supply is too low and cannot provide enough power for the electromagnet and the motor, the alarm device will sound an alarm to prompt the user to replace the battery or charge it in time to prevent safety accidents.

[0012] Furthermore, in the intelligent safety hook described in the present application, the attraction iron block of the closing component is a downward hook block.

[0013] Furthermore, in the intelligent safety hook described in the present application, the end of the yoke block of the electromagnet has an L-shaped hook block, and the L-shaped hook block cooperates and hooks with the downward hook block.

[0014] Furthermore, in the intelligent safety hook described in the present application, the power source is a rechargeable battery.

[0015] When the above-mentioned intelligent safety hook is not in working state, the electromagnet is in power-off state and the closing component is in open state. When the heavy object is hung in the hook component and touches the gravity sensing component, the system control component sends a signal, the electromagnet is powered on, and the motor rotates counterclockwise to drive the closing component to rotate and finally adsorb the electromagnet to close the hook. After the heavy object is lifted and transferred to the target position, when the heavy object no longer touches the gravity sensing component, the system control component sends a signal, the electromagnet is powered off, and the motor rotates clockwise to drive the closing component to open and take out the heavy object.

[0016] Furthermore, in the intelligent safety hook described in the present application, the connecting component includes at least one guide plate structure, the guide plate structure includes a connecting wheel and a U-shaped frame plate for fixing the connecting wheel, and the bottom of the U-shaped frame plate is connected to the top of the component loading shell by bolts.

[0017] Furthermore, in the intelligent safety hook described in the present application, the connecting assembly includes two guide plate structures.

[0018] Furthermore, in the intelligent safety hook described in the present application, the connecting component is an annular ring structure, a fixing block is welded to the bottom of the annular ring structure, and the fixing block is connected to the top of the component loading shell by bolts.

[0019] The beneficial effects of this application include:

[0020] The present application discloses an intelligent safety hook for a crane, which can firmly buckle the hook through the strong adsorption of the electromagnet, preventing the safety hazard caused by the heavy object falling off the hook during the operation. At the same time, the hook of the present application has a gravity sensor on the inner side of the hook that contacts the heavy object, which sends a signal to the system control component when it senses that a heavy object is hoisted in, controls the electromagnet to connect the power supply, and drives the motor to drive the closing component to close; the closing component of the hook can be opened and closed automatically, so that the operator is away from the hoisting heavy object, reducing the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an implementation scheme of the intelligent safety hook described in this application;

[0022] Figure 2 This is a schematic diagram of the closed state structure of the intelligent safety hook described in this application;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the intelligent safety hook described in this application;

[0024] Figure 4 This is a structural schematic diagram of another embodiment of the intelligent safety hook described in this application;

[0025] Wherein: 1. hook assembly, 2. closing assembly, 3. electromagnet, 4. gravity sensing assembly, 5. fixing part, 6. assembly loading shell, 7. connecting assembly, 8. alarm device;

[0026] 201. Extension part, 202. Rotation shaft, 203. Mounting hole, 204. Motor; 301. Mounting part, 302. Yoke iron block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the specific implementation mode of the present application clearer, the technical scheme in the specific implementation mode of the present application will be clearly and completely described below. If no specific conditions are specified in the specific implementation mode, it shall be carried out according to normal conditions or conditions recommended by the manufacturer. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those generally understood by those skilled in the art. The terms used in this article in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0028] like Figure 1~Figure 4 As shown, an intelligent safety hook for a crane of the present application comprises: a hook assembly 1, a closing assembly 2, an electromagnet 3, a component loading shell 6 for fixing the hook assembly 1, a gravity sensing assembly 4 arranged at the middle position of the inner side of the bottom of the hook assembly 1, and a connecting assembly 7 fixedly installed on the top of the component loading shell 6;

[0029] A group of extensions 201 are symmetrically arranged at the lower end of the closing component 2, and mounting holes 203 are arranged on the extensions 201; a connecting through hole is arranged at the end of the hook component 1, and a rotating shaft 202 passes through the mounting hole 203 and the connecting through hole to connect the extension 201 and the end of the hook component 1; a fixing part 5 fixedly connected to the component loading shell 6 is arranged at the front end of the hook component 1;

[0030] The rotating shaft 202 is welded and fixed to the extending portion 201, and a motor 204 is disposed at one end of the rotating shaft 202 to drive the closing component 2 to rotate; the upper end of the closing component 2 has an attracting iron block that cooperates with the electromagnet 3 to close;

[0031] The electromagnet 3 has a mounting portion 301 for fixedly connecting with the component loading shell 6 and a yoke block 302 for engaging with the downward hook block of the closing component 2; the core of the electromagnet 3 is arranged inside the mounting portion 301; the upper surface of the gravity sensing component 4 is smoothly connected and transitioned with the inner side of the hook component 1.

[0032] A system control component and a power supply are also fixedly installed inside the component loading shell 6. The system control component is electrically connected to the gravity sensing component 4, the motor 204 and the electromagnet 3 respectively. The power supply is electrically connected to the system control component, the gravity sensing component 4, the motor 204 and the electromagnet 3.

[0033] In some embodiments, an alarm device 8 is disposed in the component loading shell 6 , and the alarm device 8 is electrically connected to the system control component.

[0034] In some embodiments, the attraction iron block of the closing component 2 is a downward hook block.

[0035] In some embodiments, the end of the yoke block 302 of the electromagnet 3 has an L-shaped hook block, and the L-shaped hook block is hooked with the downward hook block.

[0036] In some embodiments, the power source is a rechargeable battery.

[0037] In some embodiments, the connection assembly 7 includes at least one guide plate structure, which includes a connecting wheel and a U-shaped frame plate for fixing the connecting wheel, and the bottom of the U-shaped frame plate is connected to the top of the assembly loading shell 6 by bolts.

[0038] In some embodiments, the connection assembly 7 includes two guide plate structures.

[0039] In some embodiments, the connection assembly 7 is an annular ring structure, a fixing block is welded to the bottom of the annular ring structure, and the fixing block is connected to the top of the assembly loading shell 6 by bolts. Example 1

[0040] like Figure 2 and Figure 4 As shown, an intelligent safety hook for a crane of the present application comprises: a hook assembly 1, a closing assembly 2, an electromagnet 3, a component loading shell 6 for fixing the hook assembly 1, a gravity sensing assembly 4 arranged at the middle position inside the bottom of the hook assembly 1, and a connecting assembly 7 fixedly mounted on the top of the component loading shell 6; the connecting assembly 7 comprises two guide plate structures. The connecting assembly 7 comprises at least one guide plate structure, the guide plate structure comprises a connecting wheel and a U-shaped frame plate for fixing the connecting wheel, and the bottom of the U-shaped frame plate is connected to the top of the component loading shell 6 by bolts. An alarm device 8 is arranged in the component loading shell 6, and the alarm device 8 is electrically connected to the system control assembly. The attracting iron block of the closing assembly 2 is a downward hook block. The end of the yoke iron block 302 of the electromagnet 3 has an L-shaped hook block, and the L-shaped hook block cooperates with the downward hook block. The power source is a rechargeable battery.

[0041] A group of extensions 201 are symmetrically arranged at the lower end of the closing component 2, and a mounting hole 203 is arranged on the extension 201; a connecting through hole is arranged at the end of the hook component 1, and a rotating shaft 202 passes through the mounting hole 203 and the connecting through hole to connect the extension 201 and the end of the hook component 1; a fixing part 5 fixedly connected to the component loading shell 6 is arranged at the front end of the hook component 1; the rotating shaft 202 is welded and fixed to the extension 201, and a motor 204 for driving the closing component 2 to rotate is arranged at one end of the rotating shaft 202; the upper end of the closing component 2 has an attracting iron block that cooperates with the electromagnet 3 to close;

[0042] The electromagnet 3 has a mounting portion 301 for fixedly connecting with the component loading shell 6 and a yoke iron block 302 for engaging with the downward hook block of the closing component 2; the core of the electromagnet 3 is arranged inside the mounting portion 301; the system control component and the power supply are also fixedly installed inside the component loading shell 6, the system control component is electrically connected with the gravity sensing component 4, the motor 204 and the electromagnet 3 respectively, and the power supply is electrically connected with the system control component, the gravity sensing component 4, the motor 204 and the electromagnet 3. The upper surface of the gravity sensing component 4 is smoothly connected and transitioned with the inner side of the hook component 1.

[0043] When the above-mentioned intelligent safety hook is not in working state, the electromagnet 3 is in power-off state and the closing component 2 is in open state. When the heavy object is hung in the hook component 1 and touches the gravity sensing component 4, the system control component sends a signal, the electromagnet 3 is powered on, and the motor 204 rotates counterclockwise to drive the closing component 2 to rotate and finally adsorb the closing hook with the electromagnet 3. After the heavy object is lifted and transferred to the target position, when the heavy object no longer touches the gravity sensing component 4, the system control component sends a signal, the electromagnet 3 is powered off, and the motor 204 rotates clockwise to drive the closing component 2 to open and take out the heavy object.

[0044] The system control component also monitors the power level of the power supply. When the power level of the power supply is too low and cannot provide enough power for the electromagnet 3 and the motor 204, the alarm device 8 will sound an alarm to prompt the user to replace the battery to prevent safety accidents.

[0045] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

Claims

1. An intelligent safety hook for a crane, characterized in that: The invention comprises: a hook assembly (1), a closing assembly (2), an electromagnet (3), a component loading shell (6) for fixing the hook assembly (1), a gravity sensing assembly (4) arranged at the middle position inside the bottom of the hook assembly (1), and a connecting assembly (7) fixedly mounted on the top of the component loading shell (6); A group of extension parts (201) are symmetrically arranged at the lower end of the closing component (2), and mounting holes (203) are arranged on the extension parts (201); The end of the hook assembly (1) is provided with a connecting through hole, and the rotating shaft (202) passes through the mounting hole (203) and the connecting through hole to connect the extension part (201) and the end of the hook assembly (1); the front end of the hook assembly (1) is provided with a fixing part (5) fixedly connected to the assembly loading shell (6); The rotating shaft (202) is welded and fixed to the extension portion (201), and a motor (204) for driving the closing component (2) to rotate is disposed at one end of the rotating shaft (202); The upper end of the closing component (2) has an attracting iron block that cooperates with the electromagnet (3) to close; The electromagnet (3) comprises a mounting portion (301) for fixedly connecting to the component loading shell (6) and a yoke iron block (302) for engaging with the downward hook block of the closing component (2); the core of the electromagnet (3) is arranged inside the mounting portion (301); The upper surface of the gravity sensing component (4) is smoothly connected and transitioned to the inner side of the hook component (1); A system control component and a power supply are also fixedly installed inside the component loading shell (6); the system control component is electrically connected to the gravity sensing component (4), the motor (204) and the electromagnet (3) respectively; and the power supply is electrically connected to the system control component, the gravity sensing component (4), the motor (204) and the electromagnet (3).

2. The intelligent safety hook according to claim 1, characterized in that: An alarm device (8) is arranged in the component loading shell (6), and the alarm device (8) is electrically connected to the system control component.

3. The intelligent safety hook according to claim 2, characterized in that: The attracting iron block of the closing component (2) is a downward hook block.

4. The intelligent safety hook according to claim 3, characterized in that: The end of the yoke iron block (302) of the electromagnet (3) is provided with an L-shaped hook block, and the L-shaped hook block is hooked with the downward hook block.

5. The intelligent safety hook according to claim 4, characterized in that: The power source is a rechargeable battery.

6. The intelligent safety hook according to claim 5, characterized in that: The connection assembly (7) comprises at least one guide plate structure, the guide plate structure comprising an engaging wheel and a U-shaped frame plate for fixing the engaging wheel, the bottom of the U-shaped frame plate being connected to the top of the assembly loading shell (6) via bolts.

7. The intelligent safety hook according to claim 6, characterized in that: The connection assembly (7) comprises two guide disc structures.

8. The intelligent safety hook according to claim 5, characterized in that: The connection assembly (7) is an annular ring structure, a fixing block is welded to the bottom of the annular ring structure, and the fixing block is connected to the top of the assembly loading shell (6) via bolts.

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