Pipe pile vacuum suction cup hoist with pile drop protection device

Abstract

The utility model belongs to the technical field of crane accessories, and particularly relates to a pipe pile vacuum suction cup hoist with a pile-dropping safety device, comprising a hanging beam, on which a plurality of vacuum suction cup parts are evenly distributed along the length direction of the hanging beam, and a plurality of automatic safety hook parts are arranged on both sides of the hanging beam in the width direction, the automatic safety hook part comprising a vertical shaft, a lifting power part for lifting the vertical shaft, a hook fixed at the bottom of the vertical shaft, and a rotating power part for horizontally rotating the vertical shaft, and after the vertical shaft is lowered and rotated, the hook is located below the vacuum suction cup part; the advantage is that automatic safety hooks are added on both sides of the vacuum suction cup hanging beam, and once the pipe pile falls, the pipe pile will slightly fall on the hook without causing a safety accident; after the automatic safety hooks are added, the operation safety is effectively guaranteed, and the safety risk occurring when the vacuum suction cup is used for hanging piles is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane accessories, and in particular relates to a pipe pile vacuum suction cup hoist with a pile-dropping safety device. Background Art

[0002] The vacuum suction cup hoist for pipe piles used in the demoulding and pile-extracting workshop of a general pipe pile factory usually consists of a lifting beam, a rubber vacuum suction cup assembly evenly distributed on the lifting beam, a vacuum pump, a vacuum pipeline, a vacuum pressure gauge, a negative pressure reserve box, and electrical control. When lifting the pipe piles, the vacuum pump first evacuates the negative pressure reserve box to make the negative pressure reserve box reach the working negative pressure range. Then the hoist is operated by a crane and placed steadily on the pipe pile. The rubber suction cup directly contacts the smooth surface of the pipe pile. At this time, the air circuit solenoid valve between the rubber suction cup and the negative pressure reserve box is opened, so that the rubber suction cup reaches the working vacuum state within a few seconds. The rubber suction cup firmly absorbs the pipe pile, and then the purpose of transporting the pipe pile is achieved through the lifting and horizontal operation of the crane.

[0003] This type of handling operation is characterized by simple operation steps, but it can only be achieved when the vacuum rubber suction cup sucks the heavy objects of the pipe pile. Once the following situations occur, it is easy to cause safety accidents:

[0004] ① Due to improper operation by the driver, the suction cup is not completely attached to the pipe pile, causing a slight air leak in the suction cup. The crane is normal at the beginning of lifting, but halfway through, the negative pressure drops to the point where the warning light turns on and the alarm sounds. The negative pressure of the suction cup drops below the safe state, and the pipe pile is prone to fall from a high altitude, causing an accident;

[0005] ②After long-term operation, the rubber suction cup has defects such as wear and tear, which are not discovered in time during inspection, causing slight air leakage in the rubber suction cup during operation. It is normal at the beginning of lifting, but halfway through, the negative pressure drops to the point where the warning light turns on and the alarm sounds. The negative pressure of the suction cup drops below the safe state, and the pile is prone to fall from a high altitude, causing an accident;

[0006] ③ Due to the long-term use of the vacuum suction cup hoist, the suction cup air pipe and other connecting parts are aging, or a certain pipe joint is loose, causing a slight leak, which is not discovered in time. When working, the negative pressure drops to the point where the warning light comes on and the alarm sounds during the lifting process. The negative pressure of the suction cup drops below the safe state, and the pipe pile is prone to fall from a high altitude and cause an accident.

[0007] Based on this, this case is brought forward. Utility Model Content

[0008] The utility model aims to provide a pipe pile vacuum suction cup hoist with a pile-dropping safety device to improve the safety of pipe pile hoisting operations.

[0009] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0010] A pipe pile vacuum suction cup hoist with a pile falling safety device comprises a hanging beam, on which a plurality of vacuum suction cup parts are evenly distributed along the length direction of the hanging beam, and a plurality of automatic safety hook parts are arranged on both sides of the hanging beam in the width direction, the automatic safety hook part comprises a vertical shaft, a lifting power part for lifting the vertical shaft, a hook fixed at the bottom of the vertical shaft, and a rotating power part for horizontally rotating the vertical shaft, and after the vertical shaft is lowered and rotated, the hook is located below the vacuum suction cup part.

[0011] Furthermore, the lifting power unit includes a first telescopic member, a plurality of steering pulleys and a rope. The first telescopic member is fixed on the hanging beam, and its telescopic end is connected to one end of the rope. The steering pulley is installed on the hanging beam through a bracket and is used to change the direction of the rope. After the rope passes around the pulley, the other end is connected to the top of the vertical shaft.

[0012] Furthermore, the rotating power unit includes a second telescopic member, a crank and a rotating guide sleeve, the fixed end of the second telescopic member is rotatably connected to the suspension beam via a pin shaft, the telescopic end of the second telescopic member is rotatably connected to one end of the crank via a pin shaft, the other end of the crank is fixed to the outer wall of the rotating guide sleeve, the rotating guide sleeve is vertically arranged, and its upper and lower ends are fixed to the suspension beam via brackets, a hole cavity with a polygonal cross-section is arranged in the rotating guide sleeve, the vertical axis is a polygonal rod matching the hole cavity of the rotating guide sleeve, and vertically passes through the hole cavity of the rotating guide sleeve.

[0013] Furthermore, when the vacuum suction cup does not suck the pipe pile, the hook is located above the side of the vacuum suction cup, and the hook is parallel to the hanging beam.

[0014] Furthermore, two adjacent automatic safety hook parts are staggered and arranged on both sides of the width direction of the hanging beam, and the directions of the hooks are opposite.

[0015] The advantages of the utility model are:

[0016] 1. Considering the safety of the operation, automatic safety hooks are added on both sides of the vacuum suction cup lifting beam, which can be raised and lowered and rotated 90°; when the vacuum suction cup absorbs the pipe pile and lifts it about 20CM, the hooks are lowered to the specified depth and rotated 90°, so that the hooks on both sides are just located 2-3CM below the pipe pile to hold it. Once the pipe pile falls, it will fall slightly on the hooks without causing any safety accidents; after adding the automatic safety hooks, the safety of the operation is effectively guaranteed, which greatly reduces the safety risks when the vacuum suction cup is lifting the pile;

[0017] 2. When not in operation, the automatic hook is parallel to the suction cup beam, and the hook is raised and located on both sides of the suction cup, higher than the suction cup position, which is convenient for the vacuum suction cup to adsorb the pipe pile without interfering with the suction cup action. The hook and vacuum suction cup actions are directly operated by the crane driver in the driver's cab without the need for additional personnel intervention. It has a high degree of automation and simplification, is easy to operate, and is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall assembly of the pipe pile vacuum suction cup hoist with a pile-falling safety device in the embodiment;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of part A in FIG.

[0020] Figure 3 This is a schematic diagram of the state when the pile-falling safety device in the embodiment is not working;

[0021] Figure 4 This is a schematic diagram of the working state of the pile-falling safety device in the embodiment;

[0022] Figure 5 This is a schematic diagram of the action principle of the rotating hook of the rotating power unit in the embodiment;

[0023] Description of symbols

[0024] 1. Vacuum suction cup part; 101. Vacuum suction cup; 2. Automatic safety hook part; 201. Lifting power part; 2011. First telescopic part; 2012. Steering pulley; 2013. Rope; 202. Rotating power part; 2021. Second telescopic part; 2022. Crank; 2023. Rotating guide sleeve; 203. Vertical axis; 204. Hook; 3. Lifting beam; 4. Pipe pile. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments. It should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" herein are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] This embodiment provides a pipe pile vacuum suction cup lifting device with a pile falling safety device, such as Figure 1 , Figure 2 and Figure 3As shown, similar to the prior art, the pipe pile vacuum suction cup hanger is usually composed of a hanging beam 3 and a plurality of vacuum suction cup parts 1 evenly distributed along the length direction of the hanging beam 3, wherein the vacuum suction cup part 1 includes several major components such as a rubber vacuum suction cup 101, a vacuum pump, a vacuum pipeline, a vacuum pressure gauge, a negative pressure reserve box, and an electrical control. As an innovation and improvement, the present embodiment is provided with a plurality of automatic safety hook parts 2 on both sides of the hanging beam 3 in the width direction as a pile drop safety device.

[0027] The automatic safety hook unit 2 includes a vertical shaft 203, a lifting power unit 201 for lifting the vertical shaft 203, a hook 204 fixed at the bottom of the vertical shaft 203, and a rotating power unit 202 for horizontally rotating the vertical shaft 203.

[0028] The lifting power unit 201 includes a first telescopic member 2011, a plurality of steering pulleys 2012 and a rope 2013. The first telescopic member 2011 adopts a longitudinal push cylinder assembly, which is arranged along the length direction of the suspension beam 3 and fixed on the suspension beam 3, and its telescopic end is connected to one end of the rope 2013. The steering pulley 2012 is installed on the suspension beam 3 through a bracket, and is used to change the direction of the rope 2013. After the rope 2013 passes around the pulley, the other end is connected to the top of the vertical shaft 203. In this embodiment, the steering pulley 2012 converts the rope 2013 from the horizontal telescopic end of the first telescopic member 2011 to the vertical lifting end of the vertical shaft 203. Reference Figures 2 to 4 , the cylinder assembly is pushed longitudinally to extend and retract horizontally, and the rope 2013 drives the vertical shaft 203 to move vertically through the steering pulley 2012.

[0029] The rotary power unit 202 includes a second telescopic member 2021, a crank 2022 and a rotary guide sleeve 2023. The second telescopic member 2021 also adopts a telescopic cylinder assembly, such as Figure 5 As shown, its fixed end is rotatably connected to the suspension beam 3 through a pin, and its telescopic end is rotatably connected to one end of a crank 2022 through a pin. The other end of the crank 2022 is fixed to the outer wall of a rotating guide sleeve 2023. The rotating guide sleeve 2023 is vertically arranged, and its upper and lower ends are fixed to the suspension beam 3 through brackets. The rotating guide sleeve 2023 is provided with a hole cavity with a polygonal cross-section. The vertical shaft 203 is a polygonal rod matching the hole cavity of the rotating guide sleeve 2023, and vertically passes through the hole cavity of the rotating guide sleeve 2023. When the vertical shaft 203 is raised and lowered, since the vertical shaft 203 is a polygonal rod matching the hole cavity of the rotating guide sleeve 2023, the vertical movement of the vertical shaft 203 without jamming can be ensured, and at the same time, the rotating guide sleeve 2023 ensures that the lifting of the vertical shaft 203 will not shake; when the vertical shaft 203 is rotating, as shown in FIG. Figure 5As shown in the middle right figure, the second telescopic member 2021 extends, driving the rotating guide sleeve 2023 to rotate. Since the vertical axis 203 is a polygonal rod that matches the hole cavity of the rotating guide sleeve 2023, the rotation of the rotating guide sleeve 2023 will drive the rotation of the vertical axis 203, thereby realizing the horizontal rotation of the hook 204 fixed to the vertical axis 203.

[0030] In this embodiment, when the vacuum suction cup part 1 does not suck the pipe pile 4, the hook 204 is located on the upper side of the vacuum suction cup 101, higher than the position of the vacuum suction cup 101, and the hook 204 is parallel to the suspension beam 3, which is convenient for the vacuum suction cup 101 to absorb the pipe pile 4, and the hook 204 does not interfere with the movement of the vacuum suction cup 101; when the vacuum suction cup 101 sucks the pipe pile 4, the vertical shaft 203 is lowered and rotated, and the hook 204 is located below the vacuum suction cup 101 part 1, which plays a safety role.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, two adjacent automatic safety hooks 2 are staggered on both sides of the width direction of the hanging beam 3, and the hooks 204 are in opposite directions. The distance between the two adjacent automatic safety hooks 2 is about 340 mm, which can ensure that the automatic safety hooks 2 will not interfere with each other when they are in action. At the same time, the two adjacent automatic safety hooks are arranged on the left and right sides of the hanging beam 3. After the hooks are lowered and rotated into place, they can be in a holding position to further prevent the pipe pile 4 from rolling sideways.

[0032] The overall action flow of the pipe pile 4 vacuum suction cup 101 lifting device is as follows:

[0033] When not in operation, the hooks 204 are raised and located on both sides of the vacuum suction cup 101 and are higher than the suction cup. The hooks 204 are in a state parallel to the suspension beam 3.

[0034] When the vacuum suction cup 101 absorbs the pipe pile 4 and lifts it about 20CM, the vertical shaft 203 descends, causing the hook 204 to descend to the specified depth position and rotate 90° so that the hooks 204 on both sides are just located 2-3CM below the pipe pile 4 being hoisted, forming a holding posture. Figure 3 As shown, once the pipe pile 4 falls, the pipe pile 4 will slightly fall on the hook 204 without causing any safety accident.

[0035] The above embodiments are only used to explain the concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A vacuum suction cup hoist for pipe piles with a pile-dropping safety device, comprising a hanging beam, on which a plurality of vacuum suction cups are evenly distributed along the length direction, characterized in that: A plurality of automatic safety hook parts are provided on both sides of the width direction of the suspension beam, and the automatic safety hook parts include a vertical shaft, a lifting power part for lifting the vertical shaft, a hook fixed at the bottom of the vertical shaft, and a rotating power part for horizontally rotating the vertical shaft. After the vertical shaft is lowered and rotated, the hook is located below the vacuum suction cup part.

2. A pipe pile vacuum suction cup hoist with a pile-falling safety device as claimed in claim 1, characterized in that: The lifting power unit includes a first telescopic member, a plurality of steering pulleys and a rope. The first telescopic member is fixed on the hanging beam, and its telescopic end is connected to one end of the rope. The steering pulley is installed on the hanging beam through a bracket and is used to change the direction of the rope. After the rope passes around the pulley, the other end is connected to the top of the vertical shaft.

3. A pipe pile vacuum suction cup hoist with a pile-falling safety device as claimed in claim 1, characterized in that: The rotating power unit includes a second telescopic member, a crank and a rotating guide sleeve. The fixed end of the second telescopic member is rotatably connected to the suspension beam via a pin shaft. The telescopic end of the second telescopic member is rotatably connected to one end of the crank via a pin shaft. The other end of the crank is fixed to the outer wall of the rotating guide sleeve. The rotating guide sleeve is vertically arranged, and its upper and lower ends are fixed to the suspension beam via brackets. A hole cavity with a polygonal cross-section is arranged in the rotating guide sleeve. The vertical axis is a polygonal rod matching the hole cavity of the rotating guide sleeve, and vertically passes through the hole cavity of the rotating guide sleeve.

4. A pipe pile vacuum suction cup hoist with a pile-falling safety device as claimed in claim 1, characterized in that: When the vacuum suction cup does not suck the pipe pile, the holding hook is located above the side of the vacuum suction cup, and the holding hook is parallel to the hanging beam.

5. A pipe pile vacuum suction cup hoist with a pile-falling safety device as claimed in claim 1, characterized in that: The two adjacent automatic safety hook parts are staggered and arranged on both sides of the width direction of the hanging beam, and the directions of the hooks are opposite.

Images