Double-joint lifting device

Abstract

The present invention relates to the field of lifting and handling technology, and discloses a double-joint lifting device, comprising: a lifting machine body, having a hook; a lifting assembly, detachably mounted on the hook, for loading a forklift and cargo; and a double-joint assembly, for driving the lifting assembly to move in multiple directions. The present invention, through the arrangement of a lifting shell, can, on the one hand, achieve the simultaneous transfer of multiple forklifts while avoiding the need to install a structure for cooperating with the hook on the forklift, thereby shortening the time for transferring the forklifts; on the other hand, multiple cargoes can be transferred together, thereby increasing the cargo transfer speed while avoiding the cargo from falling during the transfer process, thereby avoiding cargo damage and safety accidents.

Description

Technical Field

[0001] The invention relates to the technical field of lifting and handling, and more specifically, to a double-joint lifting device. Background Art

[0002] After a ship transporting cargo arrives at the port, the cargo in the cabin needs to be transferred. This process is usually completed by a forklift and a lifting device. During the cargo transfer process, the lifting device is first used to move the forklift from the bow of the ship into the cabin, and then the forklift transfers the cargo to the transfer area, and then the lifting device moves the cargo out of the cabin until it reaches the bow of the ship.

[0003] The cargo in the cabin can be placed on a forklift and fixed to the forklift by a rope structure, so that the cargo can be easily transferred by the forklift. When using a lifting device to transfer cargo, the hook and the forklift must be fixed, and then the cargo is transferred by the crane. During this process, only cargo fixed on a single fork plate can be transferred at a time, and the cargo transfer speed is low. In addition, during the transfer process, the cargo is prone to fall due to problems with the fixation of the forklift and the hook, which can damage the cargo and easily cause safety accidents. Summary of the invention

[0004] The present invention provides a double-joint lifting device to solve the problems in the above-mentioned background technology.

[0005] A double-joint lifting device, comprising:

[0006] A crane body having a hook;

[0007] The lifting assembly is detachably mounted on the hook and used to load the forklift and cargo;

[0008] and a double-joint assembly, used to drive the hoisting assembly to move in multiple directions;

[0009] The lifting assembly includes a lifting shell, the lifting shell has a loading cavity, along the extension direction of the lifting shell, one end of the lifting shell is provided with a passage connected to the loading cavity and used for a forklift to pass through, and along a direction perpendicular to the extension direction of the lifting shell, one end of the lifting shell is provided with a cargo discharge port connected to the loading cavity and used for a forklift to place cargo;

[0010] The lifting assembly also includes a buffer pad, a sliding portion, a covering portion, and a covering member. The buffer pad is installed on the wall of the loading chamber and is used to prevent the cargo from hitting the wall of the loading chamber. The sliding portion is slidably connected to the wall of the loading chamber. The covering portion is slidably connected to the sliding portion and is used to cover the opening of the cargo discharge port. The covering member is slidably connected to the lifting shell and is used to cover the opening of the passage.

[0011] In some embodiments, the dual-joint assembly includes a rotating joint and a lifting joint. The rotating joint is detachably connected to the middle of the bottom of the lifting shell, and the lifting joint is installed at the bottom of the rotating joint. The rotating joint is used to drive the lifting assembly to rotate relative to the lifting joint, and the lifting joint is used to drive the lifting assembly to move in the vertical direction.

[0012] In some embodiments, a placement groove with an upward opening is provided at the bottom of the hanging shell, the placement groove is connected to the loading cavity, and the extension direction of the placement groove is the same as the extension direction of the loading cavity;

[0013] Along the extension direction of the placement groove, a plurality of support rods arranged in parallel and spaced apart are placed in the placement groove, a same hollow plate is commonly sleeved on the outer side of each support rod, the support rods are all connected to the hollow plate, a plurality of rollers arranged in parallel and spaced apart along the extension direction of the support rods are provided between two adjacent support rods, the extension direction of the axis of the rollers is parallel to the extension direction of the placement groove, along the extension direction of the placement groove, the middle parts of both ends of the rollers are rotatably connected with a rotating part, the rotating parts are slidably connected to the adjacent support rods, and the rotating parts can move relative to the support rods along the vertical direction.

[0014] In some embodiments, at least one of the two rotating parts connected to the same roller is connected to a first spring, and the first spring is used to push the roller to return to its original position after the pressure from the cargo on the roller is released.

[0015] In some embodiments, the roller is connected to any one of two adjacent support rods via a second spring, and the second spring is used to drive the first spring to reset.

[0016] In some embodiments, a winch is installed on the top of the lifting shell, and a plurality of traction members are connected to the winch. At least some of the plurality of support rods are connected to hollow members corresponding to the traction members. A plurality of first through holes corresponding to the traction members are opened on the lifting shell, and the number of the hollow members is the same as the number of the traction members and the number of the first through holes. The winch is used to transfer each roller to the top of the loading chamber.

[0017] In some embodiments, a water delivery member is installed on the top of the hanging shell, the water delivery member has a plurality of water delivery pipes, and a plurality of second perforations corresponding to the water delivery pipes are opened on the hanging shell, and the number of the second perforations is the same as the number of the water delivery pipes;

[0018] The support rods all have a first inner cavity, the rotating parts all have a second inner cavity, the second inner cavity is all connected to the adjacent first inner cavity, the rollers all have a third inner cavity and the rollers are all provided with a plurality of water outlets connected to the third inner cavity, the second inner cavity is all connected to the adjacent third inner cavity, and the support rods close to the second perforations in each support rod are provided with a plurality of water inlet holes connected to the first inner cavity, and the number of the water inlet holes is the same as the number of the second perforations.

[0019] In some embodiments, the outer movable sleeve of any one of the two rotating parts connected to the same roller is provided with a gear structure, and the gear structures are all connected to adjacent rollers. A plurality of rack structures corresponding to the gear structures are installed on the top wall of the loading chamber, and the rack structure is used to drive the roller to rotate.

[0020] The beneficial effects of the present invention are as follows: through the setting of the lifting shell, the present invention can, on the one hand, achieve the simultaneous transfer of multiple forklifts while avoiding the need to install a structure for cooperating with the hook on the forklift, and also shorten the time for transferring the forklifts. On the other hand, multiple goods can be transferred together, which can improve the speed of goods transfer and avoid the goods from falling during the transfer process, thereby avoiding damage to the goods and the occurrence of safety accidents. In addition, through the setting of a number of rollers, after the goods are placed in the loading cavity, some rollers contact the goods and are affected by the pressure of the goods. These rollers drive the goods to move downward, while the rollers around the goods are higher than the rollers contacting the goods due to the presence of the first spring and the second spring. Therefore, the rollers that do not contact the goods can limit the goods in the extension direction of the loading cavity and the direction in which the goods enter and exit the loading cavity, so as to avoid some goods repeatedly colliding with other goods when the goods do not fill the loading cavity. At the same time, the goods can also be loaded separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a double-joint lifting device of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the double-joint lifting device of the present invention after omitting the crane body and the double-joint assembly;

[0023] Figure 3 It is a schematic diagram of the structure of the hoisting housing of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the winch and water delivery member of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a local structure of a double-joint lifting device of the present invention from one perspective;

[0026] Figure 6 It is a structural schematic diagram of the local structure of the double-joint lifting device of the present invention from another perspective;

[0027] Figure 7 It is a structural schematic diagram of the local structure of the double-joint lifting device of the present invention from another perspective.

[0028] In the figure: 1. support rod; 2. hollow plate; 3. roller; 4. rotating part; 5. first spring; 6. second spring; 7. winch; 8. traction part; 9. hollow part; 10. water delivery part; 11. water delivery pipe; 12. water outlet; 13. water inlet; 14. gear structure; 15. rack structure; 100. crane body; 110. hook; 200. lifting assembly; 210. lifting shell; 211. loading chamber; 212. passage; 213. cargo release port; 214. placement slot; 215. first perforation; 216. second perforation; 220. buffer pad; 230. sliding part; 240. covering part; 250. covering part; 300. double joint assembly; 310. rotating joint; 320. lifting joint. DETAILED DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0030] like Figure 1-Figure 7 As shown, a double-joint lifting device comprises:

[0031] The crane body 100 has a hook 110;

[0032] A lifting assembly 200 detachably mounted on the lifting hook 110 for loading a forklift and cargo;

[0033] and a double-joint assembly 300 for driving the hoisting assembly 200 to move in multiple directions;

[0034] The hoisting assembly 200 includes a hoisting shell 210, which has a loading cavity 211. Along the extension direction of the hoisting shell 210, one end of the hoisting shell 210 is provided with a passage 212 connected to the loading cavity 211 and used for a forklift to pass through. Along a direction perpendicular to the extension direction of the hoisting shell 210, one end of the hoisting shell 210 is provided with a cargo discharge port 213 connected to the loading cavity 211 and used for a forklift to place cargo.

[0035] The lifting assembly 200 also includes a buffer pad 220, a sliding portion 230, a covering portion 240, and a covering member 250. The buffer pad 220 is installed on the wall of the loading cavity 211 and is used to prevent the cargo from hitting the wall of the loading cavity 211. The sliding portion 230 is slidably connected to the wall of the loading cavity 211. The covering portion 240 is slidably connected to the sliding portion 230 and is used to cover the opening of the cargo discharge port 213. The covering member 250 is slidably connected to the lifting shell 210 and is used to cover the opening of the passage 212.

[0036] In some embodiments, the dual-joint assembly 300 includes a rotating joint 310 and a lifting joint 320. The rotating joint 310 is detachably connected to the middle of the bottom of the lifting shell 210, and the lifting joint 320 is installed at the bottom of the rotating joint 310. The rotating joint 310 is used to drive the lifting assembly 200 to rotate relative to the lifting joint 320, and the lifting joint 320 is used to drive the lifting assembly 200 to move in the vertical direction.

[0037] In some embodiments, a placement slot 214 with an upward opening is formed at the bottom of the hanging housing 210, the placement slot 214 is connected to the loading chamber 211, and the extension direction of the placement slot 214 is the same as the extension direction of the loading chamber 211;

[0038] Along the extension direction of the placement groove 214, a plurality of support rods 1 arranged in parallel and spaced apart are placed in the placement groove 214, and the outer sides of each support rod 1 are jointly sleeved with the same hollow plate 2, and the support rods 1 are all connected to the hollow plate 2, and a plurality of rollers 3 arranged in parallel and spaced apart along the extension direction of the support rods 1 are provided between two adjacent support rods 1, and the extension direction of the axis of the roller 3 is parallel to the extension direction of the placement groove 214, and along the extension direction of the placement groove 214, the middle parts of both ends of the roller 3 are rotatably connected with a rotating part 4, and the rotating part 4 is slidably connected to the adjacent support rods 1, and the rotating part 4 can move relative to the support rod 1 along the vertical direction.

[0039] In some embodiments, at least one of the two rotating parts 4 connected to the same roller 3 is connected to a first spring 5 , and the first spring 5 is used to push the roller 3 to return to its original position after the pressure from the cargo on the roller 3 is released.

[0040] In some embodiments, the roller 3 is connected to any one of the two adjacent support rods 1 via a second spring 6 , and the second spring 6 is used to drive the first spring 5 to reset.

[0041] In some embodiments, a winch 7 is installed on the top of the lifting shell 210, and a plurality of traction members 8 are connected to the winch 7. At least some of the plurality of support rods 1 are connected to hollow members 9 corresponding to the traction members 8. A plurality of first through-holes 215 corresponding to the traction members 8 are opened on the lifting shell 210, and the number of the hollow members 9 is the same as the number of the traction members 8 and the number of the first through-holes 215. The winch 7 is used to transfer each roller 3 to the top of the loading chamber 211.

[0042] In some embodiments, a water delivery member 10 is installed on the top of the hanging housing 210, and the water delivery member 10 has a plurality of water delivery pipes 11. A plurality of second through holes 216 corresponding to the water delivery pipes 11 are opened on the hanging housing 210, and the number of the second through holes 216 is the same as the number of the water delivery pipes 11.

[0043] The support rods 1 all have a first inner cavity, the rotating parts 4 all have a second inner cavity, the second inner cavity is connected to the adjacent first inner cavity, the rollers 3 all have a third inner cavity and the rollers 3 are provided with a plurality of water outlets 12 connected to the third inner cavity, the second inner cavity is connected to the adjacent third inner cavity, and the support rods 1 in each support rod 1 close to the second through hole 216 are provided with a plurality of water inlet holes 13 connected to the first inner cavity, and the number of the water inlet holes 13 is the same as the number of the second through hole 216.

[0044] In some embodiments, the outer movable sleeve of any one of the two rotating parts 4 connected to the same roller 3 is provided with a gear structure 14, and the gear structures 14 are all connected to adjacent rollers 3. The top wall of the loading chamber 211 is installed with multiple rack structures 15 corresponding to the gear structures 14, and the rack structures 15 are used to drive the roller 3 to rotate.

[0045] The working principle of the present invention is as follows:

[0046] After the ship transporting the goods arrives at the port, the forklift enters the loading chamber 211 through the passage 212, and then the crane body 100 transfers the forklift into the cabin by transferring the hoisting shell 210, and then the forklift transfers the goods into the loading chamber 211 through the cargo discharge port 213; by setting the hoisting shell 210, on the one hand, it is possible to achieve the simultaneous transfer of multiple forklifts while avoiding the need to install a structure for cooperating with the hook 110 on the forklift, and also shorten the time for transferring the forklift; on the other hand, multiple goods can be transferred together, and the speed of goods transfer can be increased while avoiding the goods from falling during the transfer process, thereby avoiding damage to the goods and the occurrence of safety accidents;

[0047] During the process of transferring goods by the forklift, the buffer pad 220 separates the goods from the wall of the loading chamber 211 to prevent the goods from hitting the wall of the loading chamber 211. After the goods are placed in the loading chamber 211, part of the rollers 3 contact the goods and are affected by the pressure of the goods. This part of the rollers 3 drives the goods to move downward, and the rollers 3 around the goods are higher than the rollers 3 contacting the goods due to the presence of the first spring 5 and the second spring 6. Therefore, the rollers 3 not contacting the goods can limit the goods in the extension direction of the loading chamber 211 and the direction in which the goods enter and exit the loading chamber 211, so as to prevent part of the goods from repeatedly hitting the rest of the goods when the goods do not fill the loading chamber 211. At the same time, the goods can also be loaded separately; a buffer structure can also be set on the outside of the rollers 3;

[0048] After placing the cargo, the opening of the cargo release port 213 needs to be covered with the covering portion 240 , and the opening of the passage port 212 needs to be covered with the covering member 250 ;

[0049] After the cargo is transferred out of the cabin, it needs to be unloaded. This process can be completed by a forklift or by an operator. In some cases, a loading vehicle can be set to directly connect to the lifting shell 210. At this time, it is not convenient to use a forklift. The operator can first transfer the cargo near the passage 212 to the loading vehicle through the passage 212, and then transfer the remaining cargo to the loading vehicle in turn. The loading vehicle can also be provided with a roller 3 structure; the setting of the above-mentioned roller 3 can reduce the difficulty of the operator in pushing the cargo, and avoid the operator's difficulty in pushing the cargo due to the heavy cargo; before the operator pushes the cargo, the support plate can be placed on the roller 3 that does not contact the cargo to facilitate the operator to push the cargo;

[0050] During the unloading process, the double joint assembly 300 can be used to drive the hoisting assembly 200, wherein the rotating joint 310 can be set as a rotating slide, which can adjust the direction of the passage 212 and the cargo release port 213, and the lifting joint 320 can be set as a hydraulic cylinder, which can adjust the height of the passage 212 and the cargo release port 213; the double joint assembly 300 can be set to facilitate the docking of the loading vehicle and the hoisting shell 210;

[0051] When the roller 3 is not used to limit the position of the goods and reduce the difficulty of transferring the goods, for example, the above-mentioned structures need to be cleaned after unloading is completed, or the goods are flammable and not prone to collision and need to be tightly fitted in the loading chamber 211 and fillers need to be set to fill the remaining gaps in the loading chamber 211, in these cases, the roller 3 does not need to perform the operation of limiting the position of the goods and reducing the difficulty of transferring the goods. In these cases, the roller 3 can cooperate in performing cleaning or fire-fighting operations; before loading the goods, by connecting each traction member 8 with each hollow member 9, the winch 7 can transfer each roller 3 to the top of the loading chamber 211 by winding up the traction member 8. At this time, the water pipe 11 can be penetrated through the second through-hole 216 and inserted into the water inlet 13. When cleaning or fire-fighting operations need to be performed, the water supply member 10 supplies water to the water supply pipe 11, and the water gradually enters the first inner cavity, In each second inner cavity and each third inner cavity, and leave the third inner cavity through the water outlet 12; through the setting of the roller 3, the number of water outlets 12 on the roller 3 can be adjusted according to demand, so that the degree of damage to the hoisting shell 210 can be reduced while cooperating with the water delivery member 10 to realize the operation of cleaning the loading cavity 211 or extinguishing the fire; each traction member 8 can be connected to each hollow member 9 in a knotted manner; a plurality of holes can be provided on the roller 3, so that part of the water can flow downward while the side walls and top wall of the loading cavity 211 can be cleaned; regarding the connection between the first inner cavity and the second inner cavity, it should be noted that a connecting hole can be provided on the support rod 1 to connect the first inner cavity with the second inner cavity; the water delivery member 10 can be set as a combination structure of a water storage tank and an electric control valve, water can be put into the water storage tank in advance, and it can also be connected to the water storage structure on the ship through a water pipe when water delivery is needed;

[0052] In the process of each roller 3 being transferred to the top of the loading chamber 211, when the roller 3 gradually approaches the top wall of the loading chamber 211, each roller 3 can be rotated through the meshing transmission of the rack structure 15 and the gear structure 14, for example, the roller 3 can be rotated at an angle of 180 degrees, so that the surface of the roller 3 initially facing the bottom wall of the loading chamber 211 can be cleaned; the bottom end of the hanging shell 210 can be provided with a diversion groove connected to the placement groove 214 and the outside of the loading chamber 211 to divert water;

[0053] When the cargo transfer is completed, the forklift enters the loading chamber 211 again, and the crane body 100 transfers the forklift out of the cabin.

[0054] In summary, the present invention, through the setting of the lifting shell 210, on the one hand, can achieve the simultaneous transfer of multiple forklifts while avoiding the installation of a structure for cooperating with the hook 110 on the forklift, and also shortens the time for transferring the forklift. On the other hand, multiple goods can be transferred together, which can improve the speed of goods transfer and avoid the goods from falling during the transfer process, thereby avoiding damage to the goods and the occurrence of safety accidents. In addition, through the setting of a plurality of rollers 3, after the goods are placed in the loading chamber 211, some rollers 3 contact the goods and are affected by the pressure of the goods. These rollers 3 drive the goods to move downward, and the rollers 3 around the goods are higher than the rollers 3 contacting the goods due to the presence of the first spring 5 and the second spring 6. Therefore, the rollers 3 that do not contact the goods can limit the goods in the extension direction of the loading chamber 211 and the direction in which the goods enter and exit the loading chamber 211, so as to avoid some goods repeatedly colliding with other goods when the goods do not fill the loading chamber 211. At the same time, the goods can also be loaded separately.

[0055] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A double-joint lifting device, characterized in that: include: A crane body having a hook; The lifting assembly is detachably mounted on the hook and used to load the forklift and cargo; and a double-joint assembly, used to drive the hoisting assembly to move in multiple directions; The lifting assembly includes a lifting shell, the lifting shell has a loading cavity, along the extension direction of the lifting shell, one end of the lifting shell is provided with a passage connected to the loading cavity and used for a forklift to pass through, and along a direction perpendicular to the extension direction of the lifting shell, one end of the lifting shell is provided with a cargo discharge port connected to the loading cavity and used for a forklift to place cargo; The lifting assembly further includes a buffer pad, a sliding portion, a covering portion, and a covering member. The buffer pad is installed on the wall of the loading cavity and is used to prevent the cargo from hitting the wall of the loading cavity. The sliding portion is slidably connected to the wall of the loading cavity. The covering portion is slidably connected to the sliding portion and is used to cover the opening of the cargo discharge port. The covering member is slidably connected to the lifting shell and is used to cover the opening of the passage. A placement groove with an upward opening is provided at the bottom end of the lifting shell, the placement groove is connected to the loading cavity, and the extension direction of the placement groove is the same as the extension direction of the loading cavity; along the extension direction of the placement groove, a plurality of support rods arranged in parallel and spaced apart are placed in the placement groove, and the outer sides of each support rod are jointly sleeved with the same hollow plate, and the support rods are all connected to the hollow plate, and a plurality of rollers arranged in parallel and spaced apart along the extension direction of the support rods are provided between two adjacent support rods, and the extension direction of the axis of the rollers is parallel to the extension direction of the placement groove, and along the extension direction of the placement groove, the middle parts of both ends of the rollers are rotatably connected with a rotating part, and the rotating parts are slidably connected to the adjacent support rods, and the rotating parts can move relative to the support rods in the vertical direction.

2. A double-joint lifting device according to claim 1, characterized in that: The double-joint assembly includes a rotating joint and a lifting joint. The rotating joint is detachably connected to the middle of the bottom of the lifting shell, and the lifting joint is installed at the bottom of the rotating joint. The rotating joint is used to drive the lifting assembly to rotate relative to the lifting joint, and the lifting joint is used to drive the lifting assembly to move in the vertical direction.

3. A double-joint lifting device according to claim 1, characterized in that: At least one of the two rotating parts connected to the same roller is connected to a first spring, and the first spring is used to push the roller to return to its original position after the pressure from the goods on the roller is released.

4. A double-joint lifting device according to claim 3, characterized in that: The roller is connected to any one of the two adjacent support rods through a second spring, and the second spring is used to drive the first spring to reset.

5. A double-joint lifting device according to claim 4, characterized in that: A winch is installed on the top of the lifting shell, and a plurality of traction parts are connected to the winch. At least some of the plurality of support rods are connected to hollow parts corresponding to the traction parts. A plurality of first through holes corresponding to the traction parts are opened on the lifting shell, and the number of the hollow parts is the same as the number of the traction parts and the number of the first through holes. The winch is used to transfer each roller to the top of the loading chamber.

6. A double-joint lifting device according to claim 5, characterized in that: A water delivery component is installed on the top of the hanging shell. The water delivery component has a plurality of water delivery pipes. A plurality of second perforations corresponding to the water delivery pipes are opened on the hanging shell. The number of the second perforations is the same as the number of the water delivery pipes.

7. A double-joint lifting device according to claim 6, characterized in that: The support rods all have a first inner cavity, the rotating parts all have a second inner cavity, the second inner cavity is all connected to the adjacent first inner cavity, the rollers all have a third inner cavity and the rollers are all provided with a plurality of water outlets connected to the third inner cavity, the second inner cavity is all connected to the adjacent third inner cavity, and the support rods close to the second perforations in each support rod are provided with a plurality of water inlet holes connected to the first inner cavity, and the number of the water inlet holes is the same as the number of the second perforations.

8. A double-joint lifting device according to claim 7, characterized in that: The outer movable sleeve of any one of the two rotating parts connected to the same roller is provided with a gear structure, and the gear structures are all connected to the adjacent rollers.

9. A double-joint lifting device according to claim 8, characterized in that: The top wall of the loading chamber is equipped with a plurality of rack structures corresponding to the gear structure. Used to drive the roller to rotate.

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