Safe lifting device

Abstract

The utility model provides a safe lifting device. The safe lifting device comprises an adapter ring and a turnover device. The whole adapter ring is an annular hoop. And each group of turnover device comprises a hoisting fixing plate, a locking plate and a hoisting hanging plate. And assembly threaded holes corresponding to the hoisting threaded holes are formed in the plate surface of the hoisting fixing plate. And the plate end of the hoisting fixing plate vertically extends out of a locking plate. A pin hole, a vertical positioning hole and a horizontal positioning hole are formed in the plate surface of the locking plate. The connecting line of the center of the pin hole and the center of the vertical positioning hole is perpendicular to the connecting line of the center of the pin hole and the center of the horizontal positioning hole. And the hoisting hanging plate is rotationally connected to the outer side of the locking plate through the pin hole. Bolt holes are formed in the plate face of the hoisting hanging plate in a penetrating mode. By means of the lifting device, manual putting-down operation is omitted, the labor intensity of operators is greatly reduced, and potential safety hazards such as personal injury are avoided.

Description

Technical Field

[0001] This utility model relates to the field of hoisting and lifting technology, and in particular to a safe hoisting device. Background Technology

[0002] Cylindrical thin-walled components lack lifting points, making them inconvenient to lift and rotate, and prone to deformation and damage during lifting and rotation. In existing technologies, cylindrical thin-walled components are typically lifted vertically and then manually placed horizontally, posing a risk of product damage and potential personal injury.

[0003] Therefore, it is essential to design a safe lifting device suitable for cylindrical thin-walled products. Utility Model Content

[0004] The purpose of this invention is to provide a safe lifting device to solve the problems existing in the prior art.

[0005] The technical solution adopted to achieve the purpose of this utility model is as follows: a safe lifting device for a cylindrical thin-walled product. The safe lifting device includes a transition ring connected to the workpiece and two sets of tilting devices connected to a crane.

[0006] The adapter ring is a circular ring-shaped clamp. It is fitted around the outer periphery of the workpiece's tail end. The adapter ring has a radially threaded hole. A cylindrical set screw is screwed into the threaded hole. Rotating the cylindrical set screw pushes its threaded shaft into contact with the workpiece. Two sets of axially threaded lifting holes are also formed on the tail end face of the adapter ring.

[0007] Each set of tilting devices includes a lifting fixing plate, a locking plate, and a lifting hook plate. The lifting fixing plate has assembly threaded holes corresponding to the lifting threaded holes on its surface. A locking plate extends vertically from the end of the lifting fixing plate. The locking plate has pin holes, vertical positioning holes, and horizontal positioning holes on its surface. The line connecting the center of the pin hole and the center of the vertical positioning hole is perpendicular to the line connecting the center of the pin hole and the center of the horizontal positioning hole. The lifting hook plate is rotatably connected to the outside of the locking plate through the pin holes. Bolt holes are provided through the surface of the lifting hook plate. When the positioning bolts pass through the bolt holes and the vertical positioning holes, the lifting hook plate is in a vertical position. When the positioning bolts pass through the bolt holes and the horizontal positioning holes, the lifting hook plate is in a horizontal position.

[0008] During operation, two sets of tilting devices are positioned on either side of the workpiece. The lifting and fixing plate is attached to the tail end face of the adapter ring. Bolts pass through the assembly threaded hole and the lifting threaded hole in sequence to fix the adapter ring to the lifting and fixing plate. The workpiece is lifted and tilted by lifting and / or tilting the lifting plate.

[0009] Furthermore, a pressing plate is fixedly connected to the screw end of the cylindrical end set screw. The pressing plate is made of an elastic material.

[0010] Furthermore, both the vertical and horizontal positioning holes are strip-shaped holes. The vertical positioning hole extends in the same direction as the length of the locking plate. The horizontal positioning hole extends in the same direction as the width of the locking plate.

[0011] Furthermore, fluorescent strips are provided on the lifting mounting plate.

[0012] Furthermore, a buffer pad is provided between the lifting fixing plate and the adapter ring.

[0013] Furthermore, both the adapter ring and the flipping device are made of alloy material.

[0014] Furthermore, during operation, the pin hole is located between the first end of the workpiece and its center of mass.

[0015] The technical effects of this utility model are beyond doubt:

[0016] A. Does not affect assembly efficiency: The entire operation and lifting process does not require the use of tools or the disassembly of device parts, and the overall design fully considers the efficiency of the operation process;

[0017] B. Eliminates potential quality hazards: By using this lifting device, manual lowering operations are eliminated, thus eliminating the potential quality hazard of product damage and achieving the effect of preventing defects without the need for inspection;

[0018] C. Improved working conditions for operators: By using this lifting device, manual lowering operations are eliminated, significantly reducing the labor intensity of operators and avoiding safety risks such as personal injury. Attached Figure Description

[0019] Figure 1 Schematic diagram of a safe lifting device;

[0020] Figure 2 This is a schematic diagram of an adapter ring;

[0021] Figure 3 This is a schematic diagram of the lifting fixing plate and locking plate;

[0022] Figure 4 For the horizontal workstation for lifting and attaching plates;

[0023] Figure 5 This is a vertical workstation for lifting and attaching plates.

[0024] In the diagram: 1. Adapter ring, 101. Lifting threaded hole, 2. Tilting device, 201. Lifting fixing plate, 201. Assembly threaded hole, 2011. Locking plate, 202. Pin hole, 2021. Vertical positioning hole, 2022. Horizontal positioning hole, 2023. Lifting hanger plate, 203. Workpiece, 4. Cylindrical end set screw, 401. Extrusion plate, 5. Positioning bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments, but it should not be construed as the scope of the present invention being limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and conventional methods in the art without departing from the above-described technical concept of the present invention should be included within the protection scope of the present invention.

[0026] Example 1:

[0027] See Figure 1 This embodiment provides a safe lifting device, including a transition ring 1 connected to the workpiece 3, and two sets of tilting devices 2 connected to a crane. The workpiece 3 is a cylindrical thin-walled product.

[0028] See Figure 2 The adapter ring 1 is an overall circular ring clamp. The adapter ring 1 is sleeved around the outer periphery of the tail end of the workpiece 3. The adapter ring 1 has a radially threaded hole. A cylindrical end set screw 4 is screwed into the threaded hole. Rotating the cylindrical end set screw 4 pushes the screw of the cylindrical end set screw 4 into contact with the workpiece 3. Two sets of axially oriented lifting threaded holes 101 are formed on the end face of the tail end of the adapter ring 1.

[0029] See Figure 3 Each set of flipping devices 2 includes a lifting fixing plate 201, a locking plate 202, and a lifting hook plate 203. The lifting fixing plate 201 has assembly threaded holes 2011 corresponding to the lifting threaded holes 101. The locking plate 202 extends vertically from the end of the lifting fixing plate 201. The locking plate 202 has pin holes 2021, vertical positioning holes 2022, and horizontal positioning holes 2023 on its surface. The line connecting the center of the pin hole 2021 and the center of the vertical positioning hole 2022 is perpendicular to the line connecting the center of the pin hole 2021 and the center of the horizontal positioning hole 2023. The lifting hook plate 203 is rotatably connected to the outside of the locking plate 202 through the pin holes 2021. Bolt holes 2031 are provided through the surface of the lifting hook plate 203. When the positioning bolt 5 passes through the bolt hole 2031 and the vertical positioning hole 2022, the lifting mounting plate 203 is in a vertical position. When the positioning bolt 5 passes through the bolt hole 2031 and the horizontal positioning hole 2023, the lifting mounting plate 203 is in a horizontal position. The horizontal and vertical positions of the lifting mounting plate are as follows: Figure 4 and Figure 5 As shown.

[0030] During operation, two sets of flipping devices 2 are positioned on either side of the workpiece 3. The lifting fixing plate 201 is attached to the end face of the adapter ring 1. Bolts pass through the assembly threaded hole 2011 and the lifting threaded hole 101 in sequence to fix the adapter ring 1 to the lifting fixing plate 201. The workpiece 3 is lifted and flipped by lifting and / or flipping the lifting mounting plate 203.

[0031] The process of lifting and flipping the product while it is placed upright is as follows:

[0032] (1) Place workpiece 3 vertically, use M16×25 cylindrical end set screws 4 to connect adapter ring 1 to workpiece 3 circumferentially, and then use M10 bolts to assemble flipping device 2 to adapter ring 1 in place, and tighten the M10 bolts. Insert two M12 positioning bolts 5 into the vertical positioning holes 2022.

[0033] (2) Connect the lifting auxiliary tools to the lifting mounting plate 203, and use a crane to lift the workpiece 3 vertically to a suitable position. After the product is stationary, remove the two M12 positioning bolts 5 to release the locking of the lifting mounting plate 203. Apply a suitable external force to the workpiece 3, and the lifting mounting plate 203 rotates relative to the locking plate 202, causing the workpiece 3 to rotate and flip the workpiece 3 to a horizontal position.

[0034] (3) After flipping it into place, insert the two removed M12 positioning bolts 5 into the horizontal positioning hole 2023.

[0035] (4) After confirming that the two M12 positioning bolts 5 are inserted in place, the product is lifted horizontally and placed on the operating table.

[0036] Product horizontal placement, lifting, and flipping process:

[0037] (1) The product is placed horizontally. Use 10 M16×25 cylindrical end set screws to connect the adapter ring to the product circumferentially. Then use 4 M10 bolts to assemble the flipping device and the adapter ring into place. Tighten the 4 M10 bolts and insert 2 M12 positioning bolts 5 into the horizontal positioning hole of the rotating frame.

[0038] (2) Lift the product horizontally. After the product is stationary, remove the two M12 bolts. The operator then manually flips the product into a vertical position.

[0039] (3) After flipping to the correct position, insert the two removed positioning bolts 5 into the vertical positioning holes of the rotating frame;

[0040] (4) After confirming that the two M12 positioning bolts 5 are inserted in place, the product is lifted vertically and placed on the operating table.

[0041] Example 2:

[0042] In this embodiment, the main content is the same as in embodiment 1, except that the screw end of the cylindrical end set screw 4 is fixedly connected to the extrusion plate 401. The extrusion plate 401 is made of an elastic material.

[0043] Example 3:

[0044] In this embodiment, the main content is the same as in Embodiment 1 or 2, wherein both the vertical positioning hole 2022 and the vertical positioning hole 2023 are strip-shaped holes. The vertical positioning hole 2022 extends in the same direction as the length direction of the locking plate 202. The vertical positioning hole 2023 extends in the same direction as the width direction of the locking plate 202.

[0045] Example 4:

[0046] In this embodiment, the main content is the same as any one of embodiments 1 to 3, wherein the lifting and mounting plate 203 is provided with fluorescent strips.

[0047] Example 5:

[0048] In this embodiment, the main content is the same as any one of embodiments 1 to 4, wherein a buffer pad is provided between the lifting fixing plate 201 and the transition ring 1.

[0049] Example 6:

[0050] In this embodiment, the main content is the same as any one of embodiments 1 to 5, wherein the adapter ring 1 and the flipping device 2 are both made of alloy material.

[0051] Example 7:

[0052] In this embodiment, the main content is the same as any one of embodiments 1 to 6, wherein, during operation, the pin hole 2021 is located between the first end of the workpiece 3 and the center of mass.

Claims

1. A safe lifting device, the workpiece (3) is a cylindrical thin-walled product; characterized in that: The utility model provides a kind of lifting device for workpiece, including the adapter ring (1) connected with workpiece (3), and two groups of turnover device (2) connected with lifting machine; The adapter ring (1) is a whole circular hoop; the adapter ring (1) is sleeved on the periphery of the tail end of the workpiece (3); the adapter ring (1) is provided with a threaded hole along the radial direction; the threaded hole is screwed with a cylindrical end set screw (4); the cylindrical end set screw (4) is rotated, and the screw rod of the cylindrical end set screw (4) is in contact with the workpiece (3); the tail end of the adapter ring (1) is provided with two groups of lifting threaded holes (101) along the axial direction; Each group of turnover device (2) includes a lifting fixing plate (201), a locking plate (202) and a lifting hanging plate (203); the surface of the lifting fixing plate (201) is provided with an assembly threaded hole (2011) corresponding to the lifting threaded hole (101); the end of the lifting fixing plate (201) extends perpendicularly to the locking plate (202); the surface of the locking plate (202) is provided with a pin hole (2021), a vertical positioning hole (2022) and a horizontal positioning hole (2023); the line connecting the center of the pin hole (2021) and the center of the vertical positioning hole (2022) is perpendicular to the line connecting the center of the pin hole (2021) and the center of the horizontal positioning hole (2023); the lifting hanging plate (203) is rotatably connected to the outside of the locking plate (202) through the pin hole (2021); the surface of the lifting hanging plate (203) is provided with a bolt hole (2031); when the positioning bolt (5) passes through the bolt hole (2031) and the vertical positioning hole (2022), the lifting hanging plate (203) is in an upright position; when the positioning bolt (5) passes through the bolt hole (2031) and the horizontal positioning hole (2023), the lifting hanging plate (203) is in a horizontal position.

2. A safety hoisting device according to claim 1, characterised in that: The screw rod of the cylindrical end set screw (4) is fixedly connected with an extrusion plate (401); the extrusion plate (401) is made of elastic material.

3. A safety hoisting device according to claim 1, characterized in that: The vertical positioning hole (2022) and the horizontal positioning hole (2023) are both strip-shaped holes; the direction of the vertical positioning hole (2022) is the same as the length direction of the locking plate (202); the direction of the horizontal positioning hole (2023) is the same as the width direction of the locking plate (202).

4. A safety hoisting device according to claim 1, characterized in that: The lifting hanging plate (203) is provided with a fluorescent strip.

5. A safety lifting device according to claim 1, characterised in that: A buffer spacer is arranged between the lifting fixing plate (201) and the adapter ring (1).

6. A safety lifting device according to claim 1, characterised in that: The adapter ring (1) and the turnover device (2) are both made of alloy material.

7. A safety lifting device according to claim 1, characterised in that: During work, the pin hole (2021) is located between the head end and the center of mass of the workpiece (3).

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