A hook-free lifting tool

Abstract

The present application relates to the field of lifting technology, and more particularly to a hook-free lifting tool. The hook-free lifting tool comprises a horizontal rod, and left and right sides balanced and fixed to the ends of the horizontal rod. The left side comprises a left connecting member, a drive assembly, a crossbeam, and a left hanging member. The drive assembly and the left hanging member are both fixed to the left connecting member. The left hanging member has a left large hole and a left small hole that are connected from top to bottom. The crossbeam has bulged ends. The right side comprises a right connecting member and a right hanging member. The left and right connecting members are fixed to the ends of the horizontal rod. The right hanging member is fixed to the right connecting member. The right hanging member has a right large hole and a right small hole that are connected from top to bottom. The drive assembly is configured to grasp the crossbeam and drive it horizontally, allowing the right end of the crossbeam to pass through the left and right large holes in sequence. The drive assembly can also release the crossbeam and then drive the horizontal rod upward. This hook-free lifting tool can automatically attach and detach the hook, making it difficult to unhook. Construction workers generally do not need to work at height, reducing safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of hoisting, and in particular to a hook-free hoisting tool. Background Art

[0002] When hoisting heavy components, it is generally necessary to embed lifting rings on the components or leave lifting connection ports on the sides of the components. During on-site hoisting, it is necessary to manually climb up to install the hook, and after the hoisting is completed, it is necessary to manually remove the hook, which poses a high safety risk to the hoisting workers. Currently, some solutions that do not require manual hook removal use a swivel hook for hoisting. The swivel hook has a rotatable hook body. Due to the structure of the hook body itself and the effect of gravity, the hook body is inverted in its natural state. Therefore, when hoisting heavy objects, it is necessary to manually turn the hook body straight and hook it to the heavy component, and then use a crane to lift the heavy component. Due to the downward pulling force of the weight, the hook body will continue to be in a forward state, so it generally does not rotate during the process of hoisting the weight. After the hoisting is completed, the worker operates the crane to place the heavy component on the platform. At this time, the hook body loses the downward pulling force of the weight, and the hook body automatically rotates to an inverted state, thereby automatically unhooking. When the hook of this structure is used to lift heavy objects, if the heavy objects shake violently or collide with each other, it is easy to become unhooked, which poses a high safety hazard, and it cannot be automatically hooked. Summary of the Invention

[0003] Given that current rotating hooks cannot be automatically hooked and have a high risk of unhooking, this application develops a hook-free lifting tool to reduce the need for construction workers to repeatedly climb high to work, which has a good effect in reducing safety hazards, improving construction efficiency, and reducing construction difficulty. To this end, this application adopts the following technical solutions.

[0004] A hook-free lifting tool comprises a horizontal rod, and left and right sides balanced and fixed to the ends of the horizontal rod. The left side comprises a left connecting member, a drive assembly, a crossbeam, and a left hanging member. The drive assembly and the left hanging member are both fixed to the left connecting member. The left hanging member has a left large hole and a left small hole that communicate from top to bottom. The crossbeam has bulged ends.

[0005] The right side portion includes a right connecting member and a right hanging member. The left connecting member and the right connecting member are fixed to both ends of the horizontal rod. The right hanging member is fixed to the right connecting member. The right hanging member has a right large hole and a right small hole connected from top to bottom.

[0006] The drive assembly is configured to grasp the crossbeam and drive the crossbeam to move horizontally, so that the right end of the crossbeam passes through the left large hole and the right large hole in sequence, and the left end of the crossbeam does not pass through the left large hole. The drive assembly can also release the crossbeam. If the horizontal rod is driven upward again, the left and right hanging parts move upward, and the crossbeam falls into the left and right small holes in its original position. The left and right hanging parts can continue to move upward to lift the crossbeam. The enlarged right end of the crossbeam cannot pass through the right small hole, and the enlarged left end cannot pass through the left small hole.

[0007] By adopting the above technical solution, using the hook-free lifting tool, the drive assembly drives the crossbeam through the left large hole, the heavy component, and the right large hole, and then drives the horizontal rod upward, that is, the left and right hanging parts move upward, so that the inner end of the crossbeam falls into the left and right small holes. The left and right hanging parts are further driven upward to lift the crossbeam, that is, to lift the heavy component. This process completes the automatic hook installation. After the heavy component is moved, when it is necessary to remove the hook, the horizontal rod is started to move downward, and the drive assembly, the left and right hanging parts are synchronously moved downward, so that the inner end of the crossbeam enters the left and right large holes. At this time, the drive assembly is started to pull the crossbeam out of the heavy component, completing the automatic hook removal. This hook-free lifting tool is used for lifting heavy components with a crossbeam. The two ends of the crossbeam are expanded and will not pass through the left and right small holes. Therefore, it is not easy to be unhooked. When hooking and unhooking, construction workers generally do not need to work at height, which reduces safety hazards, improves construction efficiency, and reduces construction difficulty. It should be noted that the left large hole and the left small hole described in this application are relative size descriptions, that is, the radial size of the left large hole is larger than the radial size of the left small hole, and the right large hole and the right small hole are also relative sizes, that is, the radial size of the right large hole is larger than the radial size of the right small hole.

[0008] A preferred embodiment of the hook-free lifting tool comprises a left connecting member comprising a horizontal extension rod, an outer vertical rod, and a left vertical rod. The right end of the horizontal extension rod is fixed to the left end of the horizontal rod. The upper end of the outer vertical rod is fixed to the horizontal extension rod. The drive assembly is fixed to the lower end of the outer vertical rod. The upper end of the left vertical rod is fixed to the horizontal rod. The left hanging member is fixed to the lower end of the left vertical rod.

[0009] By adopting the above technical solution, the driving assembly and the left hanging piece can move synchronously, so as to facilitate the crossbeam to pass through the left large hole of the left hanging piece.

[0010] In a preferred embodiment of the hook-free lifting tool, the left side portion further includes an end rope. The upper end of the end rope is connected to the left end of the horizontal extension rod. The lower end of the end rope is connected to the left end of the crossbeam. The drive assembly is capable of grasping the inner side of the right end of the crossbeam to keep the crossbeam in a horizontal position.

[0011] By adopting the above technical solution, the end rope is connected to the left end of the beam. When no heavy component is hoisted, the drive assembly clamps and supports the right inner end of the beam, so that the beam is horizontally located on the hoisting tool for the next insertion of the heavy component.

[0012] A preferred embodiment of the hook-free lifting tool is that the drive assembly includes a boom, a transverse motor, a double-threaded rod, two threaded sleeves, a bearing, a vertical motor, a vertical gear, and a clamping rod. The boom is fixed to the lower end of the outer vertical rod. The transverse motor and the bearing are fixed to both ends of the boom. The output end of the transverse motor is connected to one end of the double-threaded rod. The other end of the double-threaded rod is connected to the bearing. The double-threaded rod has two sections of external threads in opposite directions, and the two threaded sleeves are respectively sleeved on the outside of these two sections of external threads through matching internal threads. The vertical motor is fixed to one threaded sleeve. The output end of the vertical motor is connected to the vertical gear. The clamping rod is fixed to the other threaded sleeve.

[0013] One side of the crossbeam has vertical teeth. The transverse motor can drive the double-threaded rod to rotate, so that the vertical gear and the clamping rod abut against two side surfaces of the crossbeam, wherein the vertical gear meshes with the vertical teeth of the crossbeam.

[0014] By adopting the above technical solution, the clamping rod and the vertical gear can clamp the beam from both sides, and starting the vertical motor can drive the beam to move horizontally.

[0015] In a preferred embodiment of the hook-free lifting tool, the clamping rod comprises a bottom support plate and a vertical plate connected to each other. When the vertical gear and the clamping rod abut against the side surfaces of the beam, the bottom support plate is supported against the bottom surface of the beam, and the vertical plate is supported against the side surfaces of the beam.

[0016] By adopting the above technical solution, the clamping rod not only supports one side of the beam but also supports the beam to prevent the beam from falling off the drive assembly.

[0017] A preferred solution of the hook-free lifting tool is that the vertical-grained gear, the left large hole and the right large hole are at the same horizontal height.

[0018] By adopting the above technical solution, when the vertical-grained gear is docked with the crossbeam, the end of the crossbeam faces the left and right large holes. Driving the vertical-grained gear to rotate can drive the end of the crossbeam through the left and right large holes.

[0019] A preferred solution of the hook-free lifting tool is that when the right enlarged end of the crossbeam is located between the vertical-grained gear and the left hanging piece, the horizontal rod and the crossbeam remain horizontal.

[0020] By adopting the above technical solution, the crossbeam can smoothly pass through the left large hole, the hole of the heavy component and the right large hole, thereby completing the loading of the heavy component.

[0021] In a preferred embodiment of the hook-free lifting tool, each enlarged end of the crossbeam is shaped like a spherical segment of a sphere truncated by a plane. The bottom surface of the main body of the crossbeam is a plane. The bottom surface of each spherical segment is flush with the bottom surface of the main body of the crossbeam.

[0022] By adopting the above technical solution, the bottom surface of the enlarged end is flush with the bottom surface of the beam body, so that the beam can smoothly pass through the hole of the heavy component and complete the loading of the heavy component.

[0023] A preferred solution of the hook-free lifting tool is that the right side also includes an electromagnetic suction cup, a controller and a battery, all of which are fixed to the right connecting piece. The battery is electrically connected to the controller, and the controller is electrically connected to the electromagnetic suction cup.

[0024] By adopting the above technical solution, the electromagnetic suction cup can be adsorbed on the side plane of the heavy component. During the process of inserting the beam into the heavy component, the beam is kept horizontal and aligned with the hole of the heavy component, which helps to smoothly complete the action of passing the beam.

[0025] A preferred embodiment of the hook-free lifting tool is as follows: the left large hole is circular, the left small hole is square, and the diameter of the left large hole is larger than the horizontal width of the left small hole; the right large hole is circular, the right small hole is square, and the diameter of the right large hole is larger than the horizontal width of the right small hole.

[0026] By adopting the above technical solution, the right enlarged end of the beam can pass through the right large hole but cannot pass through the right small hole, preventing the right end of the beam from detaching from the right hanger. Similarly, the left enlarged end of the beam can pass through the left large hole but cannot pass through the left small hole, preventing the left end of the beam from detaching from the left hanger.

[0027] To sum up, the hook-free lifting tool of the present application has the following beneficial effects: the hook-free lifting tool can automatically complete hooking and unhooking, is not easy to unhook during the lifting process, reduces the construction workers' repeated high-altitude operations, and has good effects in reducing safety hazards, improving construction efficiency and reducing construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1The state before the hook-free lifting tool is prepared for lifting components.

[0030] Figure 2 for Figure 1 Another perspective of the picture.

[0031] Figure 3 for Figure 2 Another perspective of the picture.

[0032] Figure 4 This is a diagram of the state where the beam of the hook-free lifting tool is inserted into the component.

[0033] Figure 5 A diagram showing the state of a component being lifted upward by a lifting tool without removing the hook.

[0034] Figure 6 for Figure 5 Another perspective of the picture.

[0035] Figure numerals: 1, horizontal rod; 2, drive assembly; 3, crossbeam; 4, left hanger; 5, end rope; 6, right vertical rod; 7, right hanger; 8, weight component; 801, hole; 9, horizontal extension rod; 10, outer vertical rod; 11, left vertical rod; 201, hanger; 202, horizontal motor; 203, double-threaded rod; 204, threaded sleeve; 205, bearing; 206, vertical motor; 207, vertical gear; 208, clamping rod; 2081, bottom support plate; 2082, vertical plate; 401, left large hole; 402, left small hole; 701, right large hole; 702, right small hole; 12, electromagnetic suction cup; 301, left enlarged end; 302, right enlarged end. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments are described clearly and completely below. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the following embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] A hook-free lifting tool installed on a crane. Figure 1 The hook-free lifting tool comprises a horizontal rod 1, and a left side portion and a right side portion balanced and fixed below the two ends of the horizontal rod 1. A crane is connected to the two ends of the horizontal rod 1 through two forked ropes above for lifting the hook-free lifting tool.

[0038] Combine Figure 1 and Figure 2The left side includes a left connecting piece, a drive assembly 2, a crossbeam 3, a left hanger 4 and an end rope 5. The right side includes a right vertical rod 6 and a right hanger 7. The crossbeam 3 is used to pass through the weight component 8, and the left hanger 4 and the right hanger 7 are used to lift the crossbeam 3. This process can be completed by automatic operation with the help of a crane, wherein the drive assembly 2 is installed on the left connecting piece and is used to drive the crossbeam 3 to pass horizontally through the left hanger 4, the weight component 8 and the right hanger 7. The left and right sides are balanced at both ends of the horizontal rod 1, which is conducive to the horizontal movement of the crossbeam 3 so that it can smoothly pass through the hole 801 of the weight component 8. The hole 801 can be a square bar. The weight component 8 that the hook-free lifting tool is suitable for lifting is a rectangular parallelepiped, and the upper end of the weight component 8 is reserved with horizontal holes 801 that penetrate the two sides. The crossbeam 3 of the hook-free lifting tool is passed through the reserved holes 801 of the weight component 8. After the lifting is completed, the holes 801 of the weight component 8 can be sealed as needed.

[0039] The structure of the hook-free lifting tool for automatically inserting and extracting the crossbeam 3 into and out of the heavy component 8 is specifically as follows.

[0040] like Figure 1 The left connecting member includes a horizontal extension rod 9, an outer vertical rod 10, and a left vertical rod 11. The horizontal extension rod 9 is fixed to the left end of the horizontal rod 1, and the horizontal extension rod 9 and the horizontal rod 1 are coaxial. The upper end of the outer vertical rod 10 is fixed to the left end of the horizontal extension rod 9. The upper end of the left vertical rod 11 is fixed to the left end of the horizontal rod 1.

[0041] like Figure 2 The drive assembly 2 includes a boom 201, a horizontal motor 202, a double-threaded rod 203, two threaded sleeves 204, a bearing 205, a vertical motor 206, a vertical gear 207, and a clamping rod 208. The boom 201 is in an inverted U-shape. The lower end of the outer vertical rod 10 is connected to the middle of the boom 201, and the horizontal motor 202 and bearing 205 are mounted on each end of the boom 201. The output end of the horizontal motor 202 is connected to one end of the double-threaded rod 203, and the other end of the double-threaded rod 203 is connected to the bearing 205. The horizontal motor 202 is also equipped with a battery and a control device to power and disconnect the horizontal motor 202. The double-threaded rod 203 has two sections of external threads with opposite thread directions. The two threaded sleeves 204 are respectively fitted onto these two sections of external threads with internal threads. The bottom of one of the threaded sleeves 204 is connected to the vertical motor 206, and the output end of the vertical motor 206 is downwardly connected to the vertical gear 207. The vertical motor 206 is also provided with a battery and a control device for supplying power to and disconnecting the vertical motor 206. The upper end of the clamping rod 208 is connected to another threaded sleeve 204. The clamping rod 208 has a bottom supporting plate 2081 and a riser 2082 that are connected to each other and are roughly L-shaped.

[0042] The main body of the crossbeam 3 is in the shape of a square bar, with vertical teeth on one side. The ends of the crossbeam 3 are bulged into roughly spherical shapes. Specifically, each bulged end of the crossbeam 3 is in the shape of a sphere with a portion cut off by a plane, and the bottom surface of each spherical segment is flush with the bottom surface of the main body of the crossbeam 3. When the crossbeam 3 is pulled out of the weight component 8, the left and right hangers 4 and 7 release their support for the crossbeam 3, and the bottom surface of the crossbeam 3 is pressed into the hole 801 of the weight component 8. The above-mentioned bulged structure of the ends of the crossbeam 3 allows the drive assembly 2 to smoothly move the crossbeam 3 out of the hole 801 of the weight component 8 when driving the crossbeam 3 out of the hole 801.

[0043] The clamping rod 208 and the vertical gear 207 are driven by a crane to move up and down synchronously. When they move down to the sides of the beam 3 and the vertical gear 207 faces the side of the beam 3 with vertical teeth, the horizontal motor 202 can be started, and the double-threaded rod 203, the clamping rod 208 and the vertical gear 207 are moved closer to each other, so that the bottom support plate 2081 of the clamping rod 208 enters under the beam 3 to support the beam 3. The vertical plate 2082 of the clamping rod 208 abuts the side of the beam 3, and the vertical gear 207 abuts the vertical teeth of the beam 3. The clamping rod 208 and the vertical gear 207 clamp the beam 3, and the vertical gear 207 meshes with the vertical teeth of the beam 3. The vertical motor 206 is started, and the vertical gear 207 rotates, driving the beam 3 to move horizontally.

[0044] like Figure 2 The left hanger 4 has a major arc upper end and a U-shaped lower end. The open ends of the major arc upper end and the U-shaped lower end are seamlessly connected, forming a closed left large hole 401 and left small hole 402. The left large hole 401 is a circular hole enclosed by the major arc upper end. The left small hole 402 is a square hole enclosed by the U-shaped lower end. The diameter of the left large hole 401 is greater than the horizontal width of the left small hole 402. The left enlarged end 301 of the crossbeam 3 can pass through the left large hole 401 but cannot pass through the left small hole 402.

[0045] The upper end of the end rope 5 is connected to the left end of the horizontal extension rod 9, and the lower end of the end rope 5 is connected to the left end of the crossbeam 3. When the drive assembly 2 drives the crossbeam 3 outside the weight, the end rope 5 is straightened, and the end rope 5 and the drive assembly 2 respectively fix the two ends of the crossbeam 3 to fix the position of the crossbeam 3.

[0046] The upper end of the right vertical rod 6 is fixed to the right end of the horizontal rod 1. The right hanging piece 7 is fixed to the lower end of the right vertical rod 6.

[0047] like Figure 3The structure of the right hanger 7 is similar to that of the left hanger 4, but the thickness of the right hanger 7 is larger to help maintain the weight balance between the left and right parts, so that the crossbeam 3 remains horizontal. Specifically, the right hanger 7 has a major arc upper end and a U-shaped lower end. The open ends of the major arc upper end and the open ends of the U-shaped lower end are seamlessly connected to form a closed right large hole 701 and a right small hole 702. The right large hole 701 is a circular hole, which is enclosed by the major arc upper end. The right small hole 702 is a square hole, which is enclosed by the U-shaped lower end. The diameter of the right large hole 701 is greater than the horizontal width of the right small hole 702. The right enlarged end 302 of the crossbeam 3 can pass through the right large hole 701 but cannot pass through the right small hole 702.

[0048] To facilitate alignment of the crossbeam 3 and the hole 801 of the weight member 8, the right side portion may also include an electromagnetic suction cup 12, a controller, and a battery, all of which are fixed to the right connecting piece. The battery is electrically connected to the controller, and the controller is electrically connected to the electromagnetic suction cup 12, so that the electromagnetic suction cup 12 is energized or deenergized, causing the electromagnetic suction cup 12 to become magnetic or demagnetized. The weight member 8 is an iron weight of 2 to 8 tons, and the electromagnetic suction cup 12 can be adsorbed on the side plane of the weight member 8. After the crane drives the left and right hanging parts 4 and 7 to be located on both sides of the weight member 8, and the left large hole 401 and the right large hole 701 are aligned with the hole 801 of the weight member 8, the electromagnetic suction cup 12 is energized. The electromagnetic suction cup 12 is then adsorbed on the side of the weight member 8. When the crossbeam 3 is subsequently driven to move, the left large hole 401 and the right large hole 701 can always be aligned with the hole 801 of the weight member 8, thereby improving the efficiency of the crossbeam 3 passing through the hole 801 of the weight member 8.

[0049] The hook-free lifting tool is hung in the air by a crane, and the end of the crane arm is connected to the two ends of the horizontal rod 1 by two forked ropes. Before and after using the hook-free lifting tool to lift a heavy component 8, there are the following states and mutual transformation processes.

[0050] like Figure 1 First, when preparing to hoist the heavy component 8, the crossbeam 3 is positioned outside the heavy component 8. The left enlarged end 301 of the crossbeam 3 is secured by the end rope 5, and the right end is lifted and clamped inwardly by the drive assembly 2. The right enlarged end 302 of the crossbeam 3 is positioned between the vertical-grained gear 207 and the left hanger 4. The horizontal rod 1 and crossbeam 3 remain horizontal. The vertical-grained gear 207, the left large hole 401 of the left hanger 4, and the right large hole 701 of the right hanger 7 are at the same level.

[0051] Secondly, for the heavy component 8 on the transport vehicle or on the ground, adjust the position of the crane arm so that the left hanger 4 and the right hanger 7 move to the two sides of the heavy component 8, and the left large hole 401 of the left hanger 4 and the right large hole 701 of the right hanger 7 are aligned with the two ends of the hole 801 of the heavy component 8, and the electromagnetic suction cup 12 is energized. The electromagnetic suction cup 12 is adsorbed on the side of the heavy component 8. When the electromagnetic suction cup 12 is not de-energized, the left large hole 401 of the left hanger 4 and the right large hole 701 of the right hanger 7 are always aligned with the two ends of the hole 801 of the heavy component 8. Figure 4 At this time, the vertical motor 206 is started, and the beam 3 moves into the hole 801 of the weight member 8. The right enlarged end 302 of the beam 3 passes through the left large hole 401, the hole 801 of the weight member 8, and the right large hole 701 in sequence. The left enlarged end 301 of the beam 3 is located outside the vertical gear 207. Figure 5 and Figure 6 At this time, the horizontal motor 202 is started, the double-threaded rod 203 rotates, the clamping rod 208 and the vertical gear 207 release the clamping effect on the beam 3, the electromagnetic suction cup 12 is powered off, and the crane drives the horizontal rod 1, the drive assembly 2, the left hanger 4 and the right hanger 7 to move upward as a whole, and the inner sides of the two ends of the beam 3 fall into the left small hole 402 and the right small hole 702, the left hanger 4 and the right hanger 7 continue to move upward to lift the beam 3, and then lift the heavy component 8.

[0052] Finally, the crane uses the hook-free lifting tool to place the heavy component 8 at the destination, and then extracts the heavy component 8 from the beam 3. Figure 4 During this process, the crane drives the horizontal rod 1, the driving assembly 2, the left hanging piece 4 and the right hanging piece 7 to move downward as a whole, and the left large hole 401 of the left hanging piece 4 and the right large hole 701 of the right hanging piece 7 are aligned with the two ends of the crossbeam 3 and the hole 801 of the heavy component 8. The vertical gear 207 and the clamping rod 208 of the driving assembly 2 are also aligned with the two sides of the crossbeam 3. The horizontal motor 202 is started, the vertical gear 207 and the clamping rod 208 clamp the crossbeam 3, and the vertical gear 207 engages with the vertical tooth surface of the crossbeam 3. The vertical motor 206 is started, and the vertical gear 207 rotates, driving the crossbeam 3 to move out of the hole 801 of the heavy component 8. Figure 1 , until the right enlarged end 302 of the beam 3 reaches between the vertical gear 207 and the left hanging piece 4, ready for the next hoisting.

[0053] The hook-free lifting tool of this embodiment uses a crossbeam 3 instead of a conventional hook. The ends of the crossbeam 3 are enlarged, and the crossbeam 3 is lifted by a left hanger 4 and a right hanger 7. The crossbeam 3 cannot pass through the left small hole 402 at the lower end of the left hanger 4, nor can it pass through the right small hole 702 at the lower end of the right hanger 7. The lifting process is minimally wobbled, and even if the heavy component 8 collides, the crossbeam 3 is unlikely to separate from the left hanger 4 and the right hanger 7, i.e., it is unlikely to become unhooked. The hook-free lifting tool can automatically hook and unhook, eliminating the need for construction workers to repeatedly hook and unhook at the same height, thereby reducing safety hazards, lowering construction difficulty, and improving construction efficiency.

[0054] Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A hook-free lifting tool, characterized in that: The invention comprises a horizontal rod (1), and a left side portion and a right side portion fixed to both ends of the horizontal rod (1); the left side portion comprises a left connecting member, a driving assembly (2), a crossbeam (3) and a left hanging member (4); the driving assembly (2) and the left hanging member (4) are both fixed to the left connecting member; the left hanging member (4) has a left large hole (401) and a left small hole (402) connected from top to bottom; the crossbeam (3) has two bulged ends; The right side portion includes a right connecting member and a right hanging member (7); the left connecting member and the right connecting member are fixed to both ends of the horizontal rod (1); the right hanging member (7) is fixed to the right connecting member; the right hanging member (7) has a right large hole (701) and a right small hole (702) connected from top to bottom; The driving assembly (2) is configured to be able to grab the crossbeam (3) and drive the crossbeam (3) to move horizontally, so that the right end of the crossbeam (3) passes through the left large hole (401) and the right large hole (701) in sequence, and the left end of the crossbeam (3) does not pass through the left large hole (401). The driving assembly (2) can also release the crossbeam (3). If the horizontal rod (1) is driven to move upward, the left hanging piece (4) and the right hanging piece (7) are moved upward, and the crossbeam (3) falls into the left small hole (402) and the right small hole (702) in its original position. The left hanging piece (4) and the right hanging piece (7) can continue to move upward to lift the crossbeam (3); wherein, the enlarged right end of the crossbeam (3) cannot pass through the right small hole (702), and the enlarged left end cannot pass through the left small hole (402); The left connecting member comprises a horizontal extension rod (9), an outer vertical rod (10) and a left vertical rod (11); the right end of the horizontal extension rod (9) is fixed to the left end of the horizontal rod (1); the upper end of the outer vertical rod (10) is fixed to the horizontal extension rod (9); the driving assembly (2) is fixed to the lower end of the outer vertical rod (10); the upper end of the left vertical rod (11) is fixed to the horizontal rod (1); the left hanging member (4) is fixed to the lower end of the left vertical rod (11); The driving assembly (2) comprises a suspension rod (201), a transverse motor (202), a double-threaded rod (203), two threaded sleeves (204), a bearing (205), a vertical motor (206), a vertical gear (207) and a clamping rod (208); the suspension rod (201) is fixed to the lower end of the outer vertical rod (10); the transverse motor (202) and the bearing (205) are fixed to both ends of the suspension rod (201); the output end of the transverse motor (202) is connected to the double-threaded rod (203); ); the other end of the double-threaded rod (203) is connected to the bearing (205); the double-threaded rod (203) has two sections of external threads in opposite directions, and the two threaded sleeves (204) are respectively fitted onto the outside of the two sections of external threads in opposite directions through internal threads; the vertical motor (206) is fixed to one of the threaded sleeves (204); the output end of the vertical motor (206) is connected to the vertical gear (207); the clamping rod (208) is fixed to the other threaded sleeve (204); One side of the crossbeam (3) has vertical teeth; the transverse motor (202) can drive the double-threaded rod (203) to rotate, so that the vertical gear (207) and the clamping rod (208) abut against the two side surfaces of the crossbeam (3), wherein the vertical gear (207) engages the vertical teeth of the crossbeam (3).

2. The hook-free lifting tool according to claim 1, characterized in that: The left side also includes an end rope (5); the upper end of the end rope (5) is connected to the left end of the horizontal extension rod (9); the lower end of the end rope (5) is connected to the left end of the beam (3), and the driving component (2) can grasp the inner side of the right end of the beam (3) to keep the beam (3) in a horizontal state.

3. The hook-free lifting tool according to claim 1, characterized in that: The clamping rod (208) comprises a bottom supporting plate (2081) and a vertical plate (2082) connected to each other; when the vertical gear (207) and the clamping rod (208) are in contact with the two side surfaces of the beam (3), the bottom supporting plate (2081) is supported on the bottom surface of the beam (3); and the vertical plate (2082) is in contact with the side surface of the beam (3).

4. The hook-free lifting tool according to claim 1, characterized in that: The vertical-grain gear (207), the left large hole (401), and the right large hole (701) are at the same horizontal height.

5. The hook-free lifting tool according to claim 1, characterized in that: When the right enlarged end (302) of the crossbeam (3) is located between the vertical-grained gear (207) and the left hanging member (4), the horizontal rod (1) and the crossbeam (3) remain horizontal.

6. The hook-free lifting tool according to claim 1, characterized in that: Each enlarged end of the crossbeam (3) is in the shape of a spherical segment obtained by cutting off a portion of a sphere by a plane; the main body bottom surface of the crossbeam (3) is a plane; and the bottom surface of each spherical segment is flush with the main body bottom surface of the crossbeam (3).

7. The hook-free lifting tool according to claim 1, characterized in that: The right side also includes an electromagnetic suction cup (12), a controller, and a battery, all of which are fixed to the right connecting piece; the battery is electrically connected to the controller, and the controller is electrically connected to the electromagnetic suction cup (12).

8. The hook-free lifting tool according to claim 1, characterized in that: The left large hole (401) is circular, the left small hole (402) is square, and the diameter of the left large hole (401) is larger than the horizontal width of the left small hole (402); the right large hole (701) is circular, the right small hole (702) is square, and the diameter of the right large hole (701) is larger than the horizontal width of the right small hole (702).

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