Automatic grabbing and releasing device for heavy object

Abstract

The utility model discloses an automatic heavy object grabbing and releasing device which comprises a grabbing hand and a grabbing handle, four mounting holes are formed in the outer wall of the grabbing hand, springs are arranged in the mounting holes, locking pins are arranged at the inner ends of the springs, spring glands are arranged at the outer ends of the springs, a proximity switch is arranged in one of the mounting holes, and the proximity switch is arranged in the other mounting hole. A grabbing handle is arranged in the grabbing hand, the top of the grabbing handle is distributed in a spherical shape, and a release ring is arranged below the spherical shape. The grabbing and releasing functions are achieved through cooperation of the locking pin and the spring, the proximity switch is arranged in the mounting hole, automatic operation is achieved, manual intervention is reduced, the safety risk of operators in dangerous occasions is reduced, and the grabbing and releasing device is convenient to use, easy to operate and easy to popularize.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of grabbing mechanism, in particular to a kind of heavy object automatic grabbing and release device, belong to equipment transfer technical field. BACKGROUND

[0002] In industrial application field, the carrying and operation of heavy object are common and important link, often need to grab and lift heavy object to specified position, or move from one position to another position;Whether it is the loading and unloading of goods in logistics center, the carrying of parts in mechanical manufacturing, or the material transportation of construction site, efficient, safe and reliable carrying equipment is needed;In some dangerous situations, such as high temperature, high pressure, high radiation area, and situations that artificial cannot undertake, for example, deep sea operation, high-precision instrument carrying, etc., traditional manual operation mode is not only inefficient, but also has great safety risk;Although there are some grabbing and release devices on the market, most of them have complex structure and are inconvenient to operate, which cannot meet the production needs of automation and high efficiency. INVENTION CONTENTS

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a heavy object automatic grabbing and release device to solve the problem of automatic grabbing and releasing of heavy object in dangerous situations or situations that artificial cannot undertake, and improve work efficiency and safety.

[0004] The technical scheme adopted by the utility model to solve the technical problem is:

[0005] A heavy object automatic grabbing and release device, comprising a gripper and a handle, the gripper is a cylindrical structure, and four mounting holes are provided on the outer wall of the gripper, a spring is provided in the mounting hole, the inner end of the spring is provided with a locking pin, the outer end of the spring is provided with a spring gland, and a proximity switch is provided in one of the mounting holes, the gripper is provided with a handle, the top of the handle is spherical, and a release ring is provided below the spherical surface.

[0006] The spring gland is connected together with the mounting hole through threads.

[0007] The sensing end of the proximity switch faces the locking pin, an indicator light is provided outside the mounting hole, and the indicator light is connected together with the proximity switch through a circuit.

[0008] The handle is a cylindrical structure, and the inner dimension of the handle matches the inner dimension of the gripper.

[0009] An annular groove is provided on the handle below the spherical surface, a release ring is provided on the annular groove, and the two ends of the release ring are conical structures.

[0010] The grab handle is connected with a crane or lifting mechanism, and the lower end of the grab handle is arranged on the heavy object.

[0011] The positive beneficial effects of the utility model are:

[0012] 1、 the utility model discloses a proximity switch is arranged in the mounting hole, and the inductive end of the proximity switch faces the locking pin, and the proximity switch is connected together with the indicating lamp through a circuit, the proximity switch can detect the state of the locking pin in real time, and the signal feedback control operation process is passed through, reduces manual intervention, improves the operation efficiency and safety.

[0013] 2、 the utility model discloses the grab hand adopts the cylindrical structure, and the grab handle is the cylindrical structure, and cooperation locking pin and spring realize the function of grabbing and releasing;Its simple structure reduces the quantity and complexity of mechanical parts, thereby reduce the failure rate.

[0014] 3、 the utility model discloses the spring gland is connected through the thread with the mounting hole, can freely adjust the compression of spring, thereby adjusting the spring force size of locking pin, not only improve the adaptability of device, also ensure the reliable action of locking pin under different load.

[0015] 4、 the utility model discloses the both ends of release ring are the taper structure, can guide locking pin to return or pop out smoothly;The spherical surface structure of grab handle and the taper structure of release ring can be well cooperated with locking pin, no matter how the size of heavy object changes, can ensure the reliability of grabbing and releasing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the structural schematic diagram of the utility model;

[0017] Fig. 2 It is the internal structure schematic diagram of the utility model;

[0018] Wherein: 1-grab hand, 101-mounting hole, 2-grab handle, 3-release ring, 4-spring, 5-proximity switch, 6-spring gland, 7-locking pin. DETAILED DESCRIPTION

[0019] The utility model will be further explained and described below in conjunction with the drawings:

[0020] Embodiment, see Figs. 1-2The utility model relates to a heavy automatic grabbing and releasing device, including the hand 1 and the handle 2, the hand 1 is cylindrical structure, and four mounting holes 101 are arranged on the outer wall of the hand 1, spring 4 is arranged in the mounting hole 101, locking pin 7 is arranged at the inner end of spring 4, spring gland 6 is arranged at the outer end of spring 4, and proximity switch 5 is arranged in one of the mounting holes 101, handle 2 is arranged in the hand 1, the top of handle 2 is spherical structure, and releasing ring 3 is arranged below the spherical structure.

[0021] Spring gland 6 is connected with mounting hole 101 by thread.

[0022] The sensing end of proximity switch 5 is towards locking pin 7, and an indicating lamp is arranged outside the mounting hole 101 and is connected with proximity switch 5 by circuit.

[0023] The handle 2 is matched with the inside size of the hand 1.

[0024] The handle 2 below the spherical structure is excavated with annular groove, and releasing ring 3 is arranged on the annular groove, and the both ends of releasing ring 3 are conical structure.

[0025] The hand 1 is connected with crane or lifting mechanism, and the lower end of handle 2 is arranged on the heavy object.

[0026] In the above description, when the spring is in reset state, the conical surface of locking pin extends into the hand.

[0027] In the above description, the inner end of mounting hole and the inside of hand are arranged with through hole, and the size of the through hole satisfies that locking pin can extend and retract in the through hole, but the inner diameter of the through hole is less than the outer diameter of spring.

[0028] In the above description, the size of mounting hole satisfies that spring can be placed in the mounting hole.

[0029] In the above description, the size of spring gland is matched with the inner diameter of mounting hole, and spring gland is connected with the inner wall of mounting hole by thread.

[0030] In the above description, releasing ring is located in the upper part of annular groove, that is to say, there is still a part of annular groove in the lower part of releasing ring, and the annular groove is used for the extension of locking pin.

[0031] In the above description, the bottom edge of annular groove is distributed in ladder shape.

[0032] Working principle:

[0033] The grabbing process: the grabber descends, the handle enters the grabber, the locking pin on the grabber contacts the spherical structure on the top of the handle, is pressed, the locking pin retreats into the mounting hole against the spring force, at this time, the proximity switch senses the position change of the locking pin and acts, and the indicator light is on. The grabber continues to descend, when the locking pin passes the spherical end face, the spring pops out the locking pin, the proximity switch senses that the locking pin returns to the initial position, the indicator light is off, and the device enters the locking state, and the heavy object can be grabbed and lifted.

[0034] The releasing process: after the heavy object is in place, the grabber continues to descend, the locking pin contacts the conical surface on the release ring, slides along the conical surface to make the locking pin retreat into the hole, the proximity switch acts, and the indicator light is on. The grabber further descends, the locking pin contacts the lower conical surface of the release ring, and is popped out under the action of the spring, the indicator light is off, and the grabber grabs the release ring. Then, the grabber ascends with the release ring, the release ring contacts the end of the handle, makes the locking spring retreat into the hole under the action of the lower conical surface of the release ring, the indicator light is on. The grabber continues to ascend, the proximity switch senses that the locking pin is out of the sensing range, the indicator light is off, the device reaches the releasing position, and the releasing of the heavy object is completed.

[0035] The utility model discloses the cooperation of locking pin and spring realizes the function of grabbing and releasing, sets the proximity switch in the mounting hole, realizes the automation operation, reduces the manual intervention, reduces the security risk of operating personnel in dangerous situation, convenient to use, simple operation.

Claims

1. A heavy object automatic grabbing and releasing device, comprising a grab hand (1) and a grab handle (2), characterized in that: The grab (1) is a cylindrical structure, four mounting holes (101) are arranged on the outer wall of the grab (1), springs (4) are arranged in the mounting holes (101), lock pins (7) are arranged at the inner ends of the springs (4), spring glands (6) are arranged at the outer ends of the springs (4), a proximity switch (5) is arranged in one of the mounting holes (101), a grab handle (2) is arranged in the grab (1), the top of the grab handle (2) is in a spherical shape, and a release ring (3) is arranged below the spherical shape.

2. The automatic heavy object grabbing and releasing device according to claim 1, characterized in that: The spring gland (6) is connected with the mounting hole (101) through threads.

3. The automatic heavy object grabbing and releasing device according to claim 1, characterized in that: The sensing end of the proximity switch (5) faces the lock pin (7), an indicator light is arranged outside the mounting hole (101), and the indicator light is connected with the proximity switch (5) through a line.

4. The automatic heavy object grabbing and releasing device according to claim 1, characterized in that: The grab handle (2) is a cylindrical structure and matches the inner size of the grab (1).

5. The automatic heavy object grabbing and releasing device according to claim 1, wherein: An annular groove is arranged on the grab handle (2) below the spherical structure, the release ring (3) is arranged on the annular groove, and the two ends of the release ring (3) are in a conical structure.

6. The automatic heavy object grabbing and releasing device according to claim 1, characterized in that: The grab (1) is connected with a crane or a lifting mechanism, and the lower end of the grab handle (2) is arranged on a heavy object.

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