Lifting translation device for forklift and use method of lifting translation device

Abstract

The invention discloses a lifting translation device for a forklift and a using method of the lifting translation device. The lifting translation device comprises a rotary seat, the lower end of the rotary seat is rotationally connected with a middle rod, and the lower end of the middle rod is rotationally connected with a lifting hook; the rotary seat comprises a seat plate, a rotary base is arranged in the center of the seat plate, a rotary body is rotationally connected in the rotary base, an arc-shaped plate is arranged at the top of the rotary body, a connecting rod is arranged at the bottom of the rotary base, and the connecting rod is rotationally connected with the middle rod. The device can be used for medium-and-close-distance efficient transportation of large-diameter pipelines and valves. Compared with the prior art, the device disclosed by the invention replaces a transportation mode of a crane and a trailer, so that a large amount of hoisting and transportation machinery cost is saved; the semi-automatic lifting hook for the valve completely replaces a steel wire rope, so that the valve is prevented from being damaged by eccentric lifting and falling back when a flange opening of the valve is bound; according to the method, tool preparation and material taking are simple, operation is convenient and rapid, and the construction cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting and translation devices for forklifts, and particularly to a lifting and translation device for forklifts and its usage method, especially a device and method that can simultaneously use a forklift to translate and transport valves and relatively long large-diameter pipelines. Background Art

[0002] In the process of industrial pipeline installation projects or the warehousing and logistics of pipelines and valves, it is difficult to handle sporadic materials, whether valves or pipelines, solely by manpower, and it is also difficult to control the transportation costs using the standard mode of "crane + trailer". With the continuous improvement of the equipment level of construction units, using forklifts for handling has gradually become a relatively common practice at this time. However, there are two difficult problems in using forklifts. One is that when transporting relatively long large-diameter pipelines, if the flat end of the forklift fork is used to move the pipeline forward, due to its large width, the road passability is very poor. The other is that when using a steel wire rope hanging on the fork to lift the valve, the method of directly winding the steel wire rope around the valve flange is often adopted, and the valve is in an inclined state, and it is difficult to avoid unilateral collision or friction with the ground during lifting and lowering, and it is easy to be damaged. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a lifting and translation device for forklifts and its usage method, which realizes the efficient transportation of relatively long large-diameter pipelines and valves in the medium and short distances, replaces the transportation mode of "crane + trailer", and saves a large amount of lifting and transportation machinery costs.

[0004] To achieve this technical purpose, the present invention adopts the following solutions: In the first aspect, the present invention provides a lifting and translation device for forklifts, including a rotary seat. The lower end of the rotary seat is rotatably connected to an intermediate rod, and the lower end of the intermediate rod is rotatably connected to a hook. The rotary seat includes a seat plate, a rotary base is arranged at the center position of the seat plate, a rotary body is rotatably connected inside the rotary base, an arc plate is arranged at the top of the rotary body, a connecting rod is arranged at the bottom of the rotary base, and the connecting rod is rotatably connected to the intermediate rod.

[0005] Further, the rotary body is rotatably connected to the rotary base through a bearing, and the bearing is assembled inside the rotary base.

[0006] Further, a positioning plate is arranged on one side of the seat plate, adjusting plates are arranged at both ends of the positioning plate, and the adjusting plates are connected to the positioning plate through bolts.

[0007] Further, a strip hole is arranged on the adjusting plate, and the bolt is installed in the strip hole.

[0008] Further, the lifting hook includes a lifting plate, a strip-shaped through hole communicating with each other is formed on the lifting plate, a locking plate is slidably arranged in the strip-shaped through hole, limiting plates are arranged on both sides of the lower part of the strip-shaped through hole, the locking plate is arranged between the two limiting plates, and the limiting plates are fixedly connected with the lifting plate; a T-shaped through hole is formed at the lower end of the lifting plate, and the T-shaped through hole communicates with the strip-shaped through hole.

[0009] Further, connecting pins are arranged at both ends of the middle rod, the axes of the connecting pins at the upper and lower ends are perpendicular to each other, the middle rod is rotationally connected with the connecting rod through the upper connecting pin, and the middle rod is rotationally connected with the lifting hook through the lower connecting pin.

[0010] In a second aspect, the present invention provides a usage method of a lifting and translation device for a forklift. Assembling a rotary seat on the forklift specifically includes: placing the rotary seat in the middle on the forklift forks, with the seat plate on the upper surface of the forks, the positioning plate and the rotary base between the forks. Adjust the two adjusting plates on the positioning plate to make them tightly abut against the inner sides of the two forks, and then tighten the connecting bolts. Adjust the height by lifting and lowering the forklift forks, and adjust the orientation of the mechanism by rotating the middle rod and the lifting hook to align the T-shaped through hole of the lifting hook with the flange of the valve. Lift the locking plate of the lifting hook, move the lifting plate from the side of the valve, hook the two ends of the flange of the valve with the lifting plate, and lower the locking plate. The locking plate automatically falls back due to gravity and inserts into the valve. Operate the forklift to lift and translate the valve. After reaching the destination, lower the forks to place the valve on the ground, then lift the locking plate, and remove the lifting hook from one side of the valve flange to complete the transportation of the valve.

[0011] Further, another usage method of the lifting and translation device for a forklift of the present invention is to assemble rotary seats on two forklifts respectively, specifically including: placing the rotary seats in the middle on the forklift forks, with the seat plate on the upper surface of the forks, the positioning plate and the rotary base between the forks. Adjust the two adjusting plates on the positioning plate to make them tightly abut against the inner sides of the two forks, and then tighten the connecting bolts. Place both ends of the pipeline on the arc-shaped plates of the two rotary seats, one forklift drives forward, and the other drives in reverse to the destination.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: ① The device realizes the efficient transportation of relatively long and large-diameter pipelines in the medium and short distances, replaces the transportation mode of "crane + trailer", saves a large amount of lifting and transportation machinery costs, and the loading and unloading of the device saves more time and improves efficiency more significantly. It is also applicable to the translation transportation of components with relatively large length and stiffness.

[0013] ②The semi-automatic hook of the valve in this device completely replaces the steel wire rope, avoiding the damage to the valve caused by eccentric lifting when binding the valve flange and when falling back. Its locking plate has the functions of automatic falling back and locking after hooking, and can also be applied to the hoisting and disassembling of flange pipe sections and deep well pump pipes in high-rise building shafts.

[0014] ③The universal joint device for connecting the turntable and the special lifting tool replaces the steel wire rope and the lifting shackle, and can adjust the inclination of the hook in any direction. Due to its small clearance with the turntable and the special lifting tool, it reduces the lifting crosstalk and further improves the stability of valve lifting and lowering.

[0015] ④The tooling preparation and material selection of this method are simple, the operation is relatively convenient and rapid, and the construction cost is greatly reduced. Description of the Drawings

[0016] Figure 1 Structural schematic diagram of the forklift lifting and translation device in the embodiment of the present invention; Figure 2 Structural schematic diagram of the slewing base in the embodiment of the present invention; Figure 3 Side view of the slewing base in the embodiment of the present invention; Figure 4 Top view of the slewing base in the embodiment of the present invention; Figure 5 Structural schematic diagram of the hook in the embodiment of the present invention; Figure 6 Side view of the hook in the embodiment of the present invention; Figure 7 Top view of the lock plate in the embodiment of the present invention; Figure 8 Schematic diagram of the forklift hoisting a valve in the embodiment of the present invention; Figure 9 Another schematic diagram of the forklift hoisting a valve in the embodiment of the present invention; Figure 10 Schematic diagram of the forklift transporting a pipeline in the embodiment of the present invention; Figure 11 Schematic diagram of the forklift transporting a pipeline turning in the embodiment of the present invention.

[0017] The labels in the figure are: 1. Hook; 101. Hanging plate; 102. Lock plate; 103. Limiting plate; 2. Slewing base; 201. Base plate; 202. Positioning plate; 203. Slewing base; 204. Slewing body; 205. Bearing; 206. Adjusting plate; 207. Bolt; 208. Arc plate; 209. Connecting rod; 3. Intermediate rod; 301. Upper connecting pin; 302. Lower connecting pin; 4. Valve; 5. Forklift; 6. Pipeline. Detailed Embodiment

[0018] To fully understand the purpose, features, and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.

[0019] See Figures 1 to 7 , the present invention provides a lifting and translation device for a forklift, which can not only translate and transport valves but also transport longer large-diameter pipes. Specifically, it includes a swivel base 2. During use, the swivel base 2 is installed on the forklift forks of the forklift 5. A middle rod 3 is rotatably connected below the swivel base 2. The swivel base 2 and the middle rod 3 are detachably connected. A hook 1 is rotatably connected to the lower part of the middle rod 3. The hook 1 and the middle rod 3 are detachably connected.

[0020] In a specific embodiment, see Figures 2 to 4 , the swivel base 2 includes a seat plate 201. A swivel base 203 is provided at the center position of the seat plate 201. The seat plate 201 is fixedly connected to the swivel base 203. A swivel body 204 is rotatably connected inside the swivel base 203. A bearing 205 is assembled inside the swivel base 203. The swivel body 204 can rotate freely 360° through the bearing 205. The bearing 205 is a four-point contact ball bearing, and the bearing 205 can bear all the vertical and radial loads transmitted by the swivel body 204 during operation. An arc-shaped plate 208 is provided at the top of the swivel body 204 for placing the pipe 6. The number of arc-shaped plates 208 can be selected according to actual usage requirements. Generally, two arc-shaped plates 208 can meet the usage requirements. A connecting rod 209 is provided at the bottom of the swivel base 203. A pin hole is provided on the connecting rod 209. The connecting rod 209 is detachably connected to the middle rod 3.

[0021] In a specific embodiment, a positioning plate 202 is provided on one side of the seat plate 201. The length of the positioning plate 202 is slightly less than the distance between the two forklift forks of the forklift 5. Adjusting plates 206 are provided on both sides of the positioning plate 202. The adjusting plates 206 and the positioning plate 202 are connected by bolts 207. A strip hole is provided on the adjusting plate 206. The bolt 207 is installed in the strip hole. The position of the adjusting plate 206 can be adjusted to make the swivel base 2 tightly fixed to the forklift forks.

[0022] During operation, the swivel base 2 is assembled with the forklift forks of the forklift 5. The swivel base 2 is placed in the middle on the forklift forks. The seat plate 201 is located on the upper surface of the forklift forks. The positioning plate 202 and the swivel base 203 are located between the forklift forks. Adjust the two adjusting plates 206 on the positioning plate 202 to make them tightly against the inner sides of the two forklift forks, and then tighten the connecting bolts 207, see Figure 8 .

[0023] In a specific embodiment, see Figures 5 to 7, the lifting hook 1 includes a lifting plate 101, a locking plate 102 and a limiting plate 103. The lifting plate 101 is made of steel plate, and a pin hole is provided in the upper part of the lifting plate 101 for connecting with the intermediate rod 3. A strip-shaped through hole is provided in the middle upper part of the lifting plate 101, and the locking plate 102 is arranged in the strip-shaped through hole. The locking plate 102 is slidably connected with the lifting plate 101. The locking plate 102 is of a T-shaped structure, and grooves are provided on both sides of the top plate of the locking plate 102. Refer to Figure 7 , the lifting plate 101 is arranged in the groove, and limiting plates 103 are provided on both sides at the bottom of the strip-shaped through hole. The limiting plates 103 are fixedly connected with the lifting plate 101. The settings of the top groove of the locking plate 102 and the limiting plates 103 enable the locking plate 102 to only move up and down. The width of the locking plate 102 is slightly smaller than the inner diameter of the valve 4. A T-shaped through hole is provided in the lower part of the lifting plate 101, and the strip-shaped through hole is communicated with the T-shaped through hole. The size of the T-shaped through hole is designed according to the flange size of the valve 4. During the actual operation process, multiple sizes of lifting hooks 1 can be made. When lifting valves 4 of different sizes, the corresponding size of the lifting hook 1 can be directly replaced.

[0024] In a specific embodiment, pin holes are provided at the upper and lower ends of the intermediate rod 3, and the axes of the upper and lower pin holes are perpendicular to each other, making it a universal joint connecting component. Connecting pins are arranged in the pin holes. The intermediate rod 3 is rotationally connected with the connecting rod 209 at the lower part of the rotary seat 2 through the upper connecting pin 301, and the intermediate rod 3 is rotationally connected with the lifting plate 101 of the lifting hook 1 through the lower connecting pin 302.

[0025] Refer to Figure 8 and Figure 9 , when using the device of the present invention to lift the valve 4, a forklift 5 is adopted. The device of the present invention is assembled on the forklift forks of the forklift 5. The orientation of the mechanism is adjusted by manually rotating the intermediate rod 3 and the lifting hook 1, the height is adjusted by the lifting and lowering of the forklift forks of the forklift 5, and the inclination of the lifting hook 1 in any direction is adjusted through the universal joint function jointly realized by the upper connecting pin 301 and the lower connecting pin 302 to align with the flange of the valve 4.

[0026] Manually lift the locking plate 102 of the lifting hook 1, move the lifting plate 101 from the side of the valve 4, hook the lifting plate 101 on both ends (in the diameter direction) of the flange of the valve 4, and then release the locking plate 102. The locking plate 102 automatically falls back due to gravity and is inserted into the valve 4. Because its width is slightly smaller than the inner diameter of the cavity of the valve 4, any relative movement with respect to the valve 4 will be restricted, playing a role in locking the lifting plate 101.

[0027] Operate the forklift forks of the forklift 5 to lift and translate the valve 4. After reaching the destination, lower the forklift forks to place the valve 4 on the ground, then lift the locking plate 102 and remove the lifting hook 1 from one side of the flange of the valve 4 to complete the transportation of the valve 4.

[0028] The lifting hook 1 of the present application can also be applied to the hoisting and disassembly of flange pipe sections and deep well pump pipes in high-rise building shafts.

[0029] See Figure 10 and Figure 11 When transporting the pipeline 6 by using the device of the present invention, two forklifts 5 are adopted, and each is equipped with a set of slewing seats 2. The two ends of the pipeline 6 are placed on the arc-shaped plates 208 of the slewing seats 2. One forklift 5 travels forward and the other travels backward. When traveling in a straight line, the forklifts 5 and the pipeline 6 have good passability. When passing through an intersection, the two ends of the pipeline 6 and the slewing seats 2 rotate relative to the forks of the forklifts 5 together to achieve flexible turning.

[0030] Finally, it should be noted that the above-listed are only the preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and its equivalent technologies, they should be considered within the protection scope of the present invention.

Claims

1. A lifting and translation device for a forklift, comprising a slewing base (2), characterized in that, The lower end of the slewing base (2) is rotatably connected to an intermediate rod (3), and the lower end of the intermediate rod (3) is rotatably connected to a lifting hook (1); the slewing base (2) includes a base plate (201), a slewing base (203) is arranged at the center position of the base plate (201), a slewing body (204) is rotatably connected inside the slewing base (203), an arc-shaped plate (208) is arranged at the top of the slewing body (204), a connecting rod (209) is arranged at the bottom of the slewing base (203), and the connecting rod (209) is rotatably connected to the intermediate rod (3).

2. The lifting and translation device for a forklift according to claim 1, characterized in that, The slewing body (204) is rotatably connected to the slewing base (203) through a bearing (205), and the bearing (205) is assembled inside the slewing base (203).

3. The lifting and translation device for forklift trucks according to claim 1, characterized in that, A positioning plate (202) is arranged on one side of the base plate (201), adjusting plates (206) are arranged at both ends of the positioning plate (202), and the adjusting plates (206) are connected to the positioning plate (202) through bolts (207).

4. The lifting and translation device for forklift according to claim 3, characterized in that, A strip-shaped hole is arranged on the adjusting plate (206), and the bolt (207) is installed in the strip-shaped hole.

5. The lifting and translation device for forklift trucks according to claim 1, characterized in that, The lifting hook (1) includes a hanging plate (101), strip-shaped through holes communicating with each other are formed in the hanging plate (101), a locking plate (102) is slidably arranged in the strip-shaped through holes, limiting plates (103) are arranged on both sides of the lower part of the strip-shaped through holes, the locking plate (102) is arranged between the two limiting plates (103), and the limiting plates (103) are fixedly connected to the hanging plate (101); a T-shaped through hole is formed at the lower end of the hanging plate (101), and the T-shaped through hole communicates with the strip-shaped through holes.

6. The lifting and translation device for forklifts according to claim 1, characterized in that, Connecting pins are arranged at both ends of the intermediate rod (3), and the axes of the upper and lower connecting pins are perpendicular to each other. The intermediate rod (3) is rotatably connected to the connecting rod (209) through an upper connecting pin (301), and the intermediate rod (3) is rotatably connected to the lifting hook (1) through a lower connecting pin (302).

7. A method for using the lifting and translation device for forklifts according to any one of claims 1-6, characterized in that, Assembling the slewing base (2) on the forklift (5) specifically includes: placing the slewing base (2) centered on the forks of the forklift (5), with the base plate (201) on the upper surface of the forks, the positioning plate (202) and the slewing base (203) between the forks, adjusting the two adjusting plates (206) on the positioning plate (202) to make them tightly abut against the inner sides of the two forks, and then tightening the connecting bolts (207); Adjusting the height by the lifting of the forks of the forklift (5), and adjusting the orientation of the mechanism by rotating the intermediate rod (3) and the lifting hook (1) to align the T-shaped through hole of the lifting hook (1) with the flange of the valve (4); Lifting the locking plate (102) of the lifting hook (1) to move the hanging plate (101) in from the side of the valve (4), hooking the hanging plate (101) on both ends of the flange of the valve (4), and lowering the locking plate (102), and the locking plate (102) automatically falls back due to gravity and is inserted into the valve (4) internally; Operating the forklift (5) to lift and translate the valve (4), after reaching the destination, lowering the forks to place the valve (4) on the ground, then lifting the locking plate (102) and moving the lifting hook (1) out from one side of the valve (4) flange to complete the transportation of the valve (4).

8. A method for using the lifting and translation device for forklifts according to any one of claims 1-6, characterized in that, Install the slewing bases (2) on two forklifts (5) respectively. Specifically: Place the slewing base (2) centered on the forks of the forklift (5). The seat plate (201) is located on the upper surface of the forks, and the positioning plate (202) and the slewing base (203) are located between the forks. Adjust the two positioning plates (206) on the positioning plate (202) to make them tightly abut against the inner sides of the two forks, and then tighten the connecting bolts (207). Let the two ends of the pipeline (6) rest on the arc-shaped plates (208) of the two slewing bases (2). One forklift (5) travels forward, and the other travels backward to the destination.

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