Hoisting tool free of unhooking

Abstract

The invention relates to the technical field of hoisting, in particular to an unhooking-free hoisting tool. The unhooking-free hoisting tool comprises a horizontal rod, and a left side part and a right side part which are fixed at two ends of the horizontal rod in a balanced manner. The left side part comprises a left connecting piece, a driving assembly, a cross beam and a left hanging piece. The driving assembly and the left hanging piece are both fixed to the left connecting piece. The left hanging piece is provided with a left large hole and a left small hole which are communicated from top to bottom. The cross beam is provided with two expanded ends. The right side part comprises a right connecting piece and a right hanging piece. The left connecting piece and the right connecting piece are fixed to the two ends of the horizontal rod. The right hanging piece is fixed to the right connecting piece. And the right hanging piece is provided with a right large hole and a right small hole which are communicated from top to bottom. The driving assembly is configured to grab the cross beam and drive the cross beam to move horizontally, so that the right end of the cross beam sequentially passes through the left large hole and the right large hole, and the driving assembly can release the cross beam and then drive the horizontal rod to move upwards. The unhooking-free hoisting tool can automatically load and unhook, is not easy to unhook, generally does not need climbing operation of constructors, and reduces potential safety hazards.

Description

Technical Field

[0001] This application relates to the technical field of hoisting, and particularly to a hook-free hoisting tool. Background Art

[0002] When hoisting heavy object components, generally, a lifting ring is embedded in the component or a hoisting connection port is provided on the side of the component. During on-site hoisting, manual climbing is required to hook the component, and manual unhooking is also required after hoisting, which poses a relatively high safety risk to hoisting operators. Currently, some solutions that do not require manual unhooking use a rotating hook for hoisting. This rotating hook has a rotatable hook body. Due to the structure and gravity of the hook body itself, the hook body is inverted in its natural state. Therefore, when hoisting a heavy object, it is necessary to manually turn the hook body upright and hook it onto the heavy object component, and then use a crane to lift the heavy object component. Due to the downward pulling force of the heavy object, the hook body will remain in the forward state, so it generally does not rotate during the process of hoisting the heavy object. After hoisting is completed, the worker operates the crane to place the heavy object component on the platform. At this time, the hook body loses the downward pulling force of the heavy object, and the hook body automatically rotates to the inverted state, thus automatically unhooking. When the hook of this structure hoists a heavy object, if the heavy object shakes greatly or collides with other objects, it is easy to unhook, posing a relatively high safety hazard, and it cannot automatically hook. Summary of the Invention

[0003] In view of the problems that the current rotating hook cannot automatically hook and there are still relatively high unhooking hazards, this application develops a hook-free hoisting tool, which reduces the repeated climbing operations of construction workers and has good effects in reducing safety hazards, improving construction efficiency, and reducing construction difficulty. For this purpose, the following technical solutions are adopted in this application.

[0004] A hook-free hoisting tool includes a horizontal rod, and a left side part and a right side part that are symmetrically fixed at both ends of the horizontal rod. The left side part includes a left connecting piece, a driving component, a cross beam, and a left hanging piece. The driving component and the left hanging piece are both fixed to the left connecting piece. The left hanging piece has a left large hole and a left small hole that communicate with each other from top to bottom. The cross beam has enlarged ends.

[0005] The right side part includes a right connecting piece and a right hanging piece. The left connecting piece and the right connecting piece are fixed at both ends of the horizontal rod. The right hanging piece is fixed to the right connecting piece. The right hanging piece has a right large hole and a right small hole that communicate with each other from top to bottom.

[0006] The driving assembly is configured to be able to grasp the cross beam and drive the cross beam to move horizontally, so that the right end of the cross beam sequentially passes through the left large hole and the right large hole, and the left end of the cross beam does not pass through the left large hole. The driving assembly can also release the cross beam. If the horizontal rod is driven to move upward again, the left hanging member and the right hanging member will move upward, and then the cross beam will fall into the left small hole and the right small hole in place, and the left hanging member and the right hanging member can continue to move upward to lift the cross beam. Wherein, the enlarged right end of the cross beam 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, when using this hook-free hoisting tool, the driving assembly drives the cross beam to pass through the left large hole, the heavy object component and the right large hole, and then drives the horizontal rod to move upward, that is, the left hanging member and the right hanging member move upward, so that the inner end of the cross beam falls into the left small hole and the right small hole. Continuing to drive the left hanging member and the right hanging member to move upward to lift the cross beam, that is, the heavy object component is hoisted, and the automatic hook installation is completed in this process. After the handling of the heavy object component is completed and unhooking is required, start the horizontal rod to move downward, then the driving assembly, the left hanging member and the right hanging member move downward synchronously, so that the inner end of the cross beam enters the left large hole and the right large hole. At this time, starting the driving assembly can pull the cross beam out of the heavy object, completing the automatic unhooking. This hook-free hoisting tool is used for hoisting heavy object components with a cross beam. The two ends of the cross beam are enlarged ends and will not pass through the left small hole and the right small hole. Therefore, it is not easy to have a hook detachment phenomenon. When installing and removing the hook, generally, construction workers do not need to work at heights, reducing potential safety hazards, improving construction efficiency, and reducing 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 dimension of the left large hole is larger than that of the left small hole, and the right large hole and the right small hole are also relative sizes, that is, the radial dimension of the right large hole is larger than that of the right small hole.

[0008] A preferred solution of this hook-free hoisting tool is that the left connecting member includes 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 driving 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 member can move synchronously to facilitate the cross beam to pass through the left large hole of the left hanging member.

[0010] A preferred solution of this hook-free hoisting tool is that 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 cross beam, and the driving assembly can grasp the inner side of the right end of the cross beam to make the cross beam in a horizontal state.

[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 driving 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 solution of the hook-free lifting tool is that the driving assembly includes a suspension rod, a transverse motor, a double-threaded rod, two threaded sleeves, a bearing, a vertical motor, a vertical gear and a clamping rod. The suspension rod is fixed to the lower end of the outer vertical rod. The transverse motor and the bearing are fixed to both ends of the suspension rod. 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 the two sections of external threads through matching internal threads. The vertical motor is fixed to one of the threaded sleeves. 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] A preferred solution of the hook-free lifting tool is that the clamping rod has a bottom support plate and a vertical plate connected to each other. When the vertical gear and the clamping rod abut against the two side surfaces of the beam, the bottom support plate is supported on the bottom surface of the beam. The vertical plate is in contact with the side surface of the beam.

[0016] By adopting the above technical solution, the clamping rod not only abuts against one side of the crossbeam, but also supports the crossbeam to prevent the crossbeam from falling off the driving assembly downward.

[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 gear is connected to the crossbeam, the end of the crossbeam faces the left large hole and the right large hole. Driving the vertical gear to rotate can drive the end of the crossbeam through the left large hole and the right large hole.

[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 cross beam can smoothly pass through the left large hole, the hole of the heavy object component, and the right large hole, completing the loading of the heavy object component.

[0021] A preferred solution of this hook-free lifting tool is that each enlarged end of the cross beam is in the shape of a spherical segment after a part of the sphere is cut off by a plane. The bottom surface of the main body of the cross beam is a plane. The bottom surface of each spherical segment is flush with the bottom surface of the main body of the cross beam.

[0022] By adopting the above technical solution, the bottom surface of the enlarged end is flush with the bottom surface of the main body of the cross beam, enabling the cross beam to smoothly pass through the hole of the heavy object component and complete the loading of the heavy object component.

[0023] A preferred solution of this hook-free lifting tool is that the right side part further includes an electromagnetic chuck, 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 chuck.

[0024] By adopting the above technical solution, the electromagnetic chuck can be adsorbed on the side plane of the heavy object component. During the process of inserting the cross beam into the heavy object component, it can keep the cross beam horizontal and aligned with the hole of the heavy object component, which helps to smoothly complete the action of passing the cross beam through.

[0025] A preferred solution of this hook-free lifting tool is that the left large hole is circular, the left small hole is square, and the diameter of the left large hole is greater 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 greater than the horizontal width of the right small hole.

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

[0027] In summary, the hook-free lifting tool of this application has the following beneficial effects: The hook-free lifting tool can automatically complete hook-on and hook-off, is not easy to unhook during the lifting process, reduces the need for construction workers to repeatedly climb heights, 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 technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of this specification. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0029] Figure 1The state before the hook-free lifting tool prepares the lifted component for lifting.

[0030] Figure 2 For Figure 1 Another perspective view.

[0031] Figure 3 For Figure 2 Another perspective view.

[0032] Figure 4 The state diagram of the cross beam of the hook-free lifting tool inserted into the component.

[0033] Figure 5 The state diagram of the hook-free lifting tool lifting the component upward.

[0034] Figure 6 For Figure 5 Another perspective view.

[0035] Reference numerals: 1, horizontal rod; 2, drive assembly; 3, cross beam; 4, left suspension member; 5, end rope; 6, right vertical rod; 7, right suspension member; 8, heavy object component; 801, hole; 9, horizontal extension rod; 10, outer vertical rod; 11, left vertical rod; 201, suspension rod; 202, transverse 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 chuck; 301, left enlarged end; 302, right enlarged end. Detailed implementation manners

[0036] The technical solutions in the embodiments are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the following embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] A hook-free lifting tool is installed on a crane. As Figure 1 , the hook-free lifting tool includes a horizontal rod 1 and left and right sides that are symmetrically fixed below both ends of the horizontal rod 1. The crane is connected to both ends of the horizontal rod 1 through two forked ropes above for lifting the hook-free lifting tool.

[0038] Combined with Figure 1 and Figure 2, the left side includes a left connecting piece, a driving component 2, a cross beam 3, a left hanging piece 4 and an end rope 5. The right side includes a right vertical rod 6 and a right hanging piece 7. The cross beam 3 is used to pass through the heavy object component 8, and the left hanging piece 4 and the right hanging piece 7 are used to lift the cross beam 3. This process can be completed automatically in cooperation with a crane. Among them, the driving component 2 is installed on the left connecting piece and is used to drive the cross beam 3 to horizontally pass through the left hanging piece 4, the heavy object component 8 and the right hanging piece 7. The left side and the right side are balanced at both ends of the horizontal rod 1, which is beneficial to the horizontal movement of the cross beam 3 to smoothly pass through the hole 801 of the heavy object component 8. The hole 801 can be square bar-shaped. The heavy object component 8 adapted to be hoisted by this hook-free hoisting tool is cuboid-shaped, and a horizontal hole 801 penetrating both side surfaces is reserved at the upper end of the heavy object component 8. The cross beam 3 of the hook-free tool is passed through the reserved hole 801 of the heavy object component 8. After the hoisting is completed, the hole 801 of the heavy object component 8 can be blocked according to requirements.

[0039] The structure of this hook-free hoisting tool for realizing the automatic action of inserting and extracting the cross beam 3 into and out of the heavy object component 8 is specifically as follows.

[0040] As Figure 1 , the left connecting piece 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] As Figure 2 , the driving component 2 includes 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 inverted U-shaped. The lower end of the outer vertical rod 10 is connected to the middle of the suspension rod 201. A transverse motor 202 and a bearing 205 are respectively installed at both ends of the suspension rod 201. The output end of the transverse 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. A battery and a control device are also installed on the transverse motor 202 to supply power and cut off power to the transverse motor 202. The double threaded rod 203 has two outer threads with opposite thread directions. The two threaded sleeves 204 are respectively sleeved on these two outer threads with opposite directions through internal threads. A vertical motor 206 is connected below one of the threaded sleeves 204, and the output end of the vertical motor 206 is connected downward to the vertical gear 207. A battery and a control device are also installed on the vertical motor 206 to supply power and cut off power to the vertical motor 206. The upper end of the clamping rod 208 is connected to the other threaded sleeve 204. The clamping rod 208 has a bottom support plate 2081 and a vertical plate 2082 connected to each other, showing a roughly L shape.

[0042] The main body of the cross beam 3 is square bar-shaped, one side of which has vertical tooth patterns, and both ends of the cross beam 3 expand into approximately spherical shapes. Specifically, each expanded end of the cross beam 3 is in the shape of a spherical segment formed by cutting off a part of a sphere by a plane, and the bottom surface of each spherical segment is flush with the bottom surface of the main body of the cross beam 3. When the cross beam 3 is pulled out from the heavy object component 8, the left lifting member 4 and the right lifting member 7 release the support for the cross beam 3, and then the bottom surface of the cross beam 3 presses into the hole 801 of the heavy object component 8. The above-mentioned end expansion structure of the cross beam 3 enables the cross beam 3 to smoothly move out of the hole 801 when the driving assembly 2 drives the cross beam 3 to move out of the hole 801 of the heavy object component 8.

[0043] The clamping rod 208 and the vertical tooth gear 207 are driven by the crane to move up and down synchronously. When they move down to both sides of the cross beam 3 and the vertical tooth gear 207 faces the side surface of the cross beam 3 with vertical tooth patterns, the transverse motor 202 can be started. Then, the double threaded rod 203, the clamping rod 208 and the vertical tooth gear 207 approach each other, so that the bottom support plate 2081 of the clamping rod 208 enters below the cross beam 3 to support the cross beam 3. The vertical plate 2082 of the clamping rod 208 abuts against the side surface of the cross beam 3, and the vertical tooth gear 207 abuts against the vertical tooth pattern surface of the cross beam 3, so that the clamping rod 208 and the vertical tooth gear 207 clamp the cross beam 3, and the vertical tooth gear 207 meshes with the vertical tooth patterns of the cross beam 3. Starting the vertical motor 206, the vertical tooth gear 207 rotates to drive the cross beam 3 to horizontally translate.

[0044] As Figure 2 , the left lifting member 4 has a superior arc upper end and a U-shaped lower end. The open ends of the superior arc upper end and the open ends of the U-shaped lower end are seamlessly connected to form a closed left large hole 401 and a left small hole 402. The left large hole 401 is a circular hole surrounded by the superior arc upper end. The left small hole 402 is a square hole surrounded 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 expanded end 301 of the cross beam 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 cross beam 3. When the driving assembly 2 drives the cross beam 3 outside the heavy object, the end rope 5 is straightened, and the end rope 5 and the driving assembly 2 respectively fix both ends of the cross beam 3 to fix the position of the cross beam 3.

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

[0047] As Figure 3, The structure of the right suspension member 7 is similar to that of the left suspension member 4, but the right suspension member 7 is thicker to help maintain the weight balance between the left side and the right side, so that the cross beam 3 remains horizontal. Specifically, the right suspension member 7 has an upper superior arc end and a U-shaped lower end. The two open ends of the upper superior arc end and the two open ends of the U-shaped lower end are seamlessly connected to form a closed large right hole 701 and a small right hole 702. The large right hole 701 is a circular hole surrounded by the upper superior arc end. The small right hole 702 is a square hole surrounded by the U-shaped lower end. The diameter of the large right hole 701 is greater than the horizontal width of the small right hole 702. The right enlarged end 302 of the cross beam 3 can pass through the large right hole 701 but cannot pass through the small right hole 702.

[0048] To facilitate the alignment of the holes 801 of the cross beam 3 and the heavy object member 8, the right side can also include an electromagnetic chuck 12, a controller, and a battery, all of which are fixed to the right connecting member. And the battery is electrically connected to the controller, and the controller is electrically connected to the electromagnetic chuck 12 to energize or de-energize the electromagnetic chuck 12, so that the electromagnetic chuck 12 has magnetism or loses magnetism. The heavy object member 8 is an iron heavy object of 2 to 8 tons, and the electromagnetic chuck 12 can be adsorbed on the side plane of the heavy object member 8. After the crane drives the left suspension member 4 and the right suspension member 7 to be located on both sides of the heavy object member 8, and the large left hole 401 and the large right hole 701 are aligned with the holes 801 of the heavy object member 8, the electromagnetic chuck 12 is energized, then the electromagnetic chuck 12 is adsorbed on the side of the heavy object member 8. When the cross beam 3 is subsequently driven to move, the large left hole 401 and the large right hole 701 can always be aligned with the holes 801 of the heavy object member 8, improving the efficiency of the cross beam 3 passing through the holes 801 of the heavy object member 8.

[0049] This hookless lifting tool is suspended in the air by a crane, and the two ends of the crane arm are connected to both ends of the horizontal rod 1 by two forked ropes. Before and after using this hookless lifting tool to lift the heavy object member 8, there are the following states and mutual conversion processes.

[0050] As Figure 1 , First, when preparing to lift the heavy object member 8, the cross beam 3 is outside the heavy object member 8. The left enlarged end 301 of the cross beam 3 is fixed by the end rope 5, and the inner right end is supported and clamped by the driving assembly 2. The right enlarged end 302 of the cross beam 3 is located between the vertical gear 207 and the left suspension member 4, and the horizontal rod 1 and the cross beam 3 are horizontal. The vertical gear 207, the large left hole 401 of the left suspension member 4, and the large right hole 701 of the right suspension member 7 are at the same horizontal height.

[0051] Secondly, for the heavy object component 8 on the transport vehicle or on the ground, adjust the position of the crane arm so that the left lifting member 4 and the right lifting member 7 move to both sides of the heavy object component 8, and the left large hole 401 of the left lifting member 4 and the right large hole 701 of the right lifting member 7 are aligned with both ends of the hole 801 of the heavy object component 8. Energize the electromagnetic chuck 12, and the electromagnetic chuck 12 adsorbs on the side of the heavy object component 8. Then, when the electromagnetic chuck 12 is not de-energized, the left large hole 401 of the left lifting member 4 and the right large hole 701 of the right lifting member 7 are always aligned with both ends of the hole 801 of the heavy object component 8. As Figure 4 , at this time, start the vertical motor 206, and the cross beam 3 moves into the hole 801 of the heavy object component 8. The right enlarged end 302 of the cross beam 3 sequentially passes through the left large hole 401, the hole 801 of the heavy object component 8, and the right large hole 701, and the left enlarged end 301 of the cross beam 3 is located outside the vertical gear 207. As Figure 5 and Figure 6 , at this time, start the horizontal motor 202, then the double threaded rod 203 rotates, and the clamping rod 208 and the vertical gear 207 release the clamping effect on the cross beam 3. De-energize the electromagnetic chuck 12, and the crane drives the horizontal rod 1, the drive assembly 2, the left lifting member 4 and the right lifting member 7 to move upward as a whole. Then, the inner sides of both ends of the cross beam 3 fall into the left small hole 402 and the right small hole 702. The left lifting member 4 and the right lifting member 7 continue to move upward to lift the cross beam 3, and then lift the heavy object component 8.

[0052] Finally, after the crane places the heavy object component 8 at the destination using this hook-free lifting tool, then withdraw the cross beam 3 from the heavy object component 8. Refer to Figure 4 , during this process, the crane drives the horizontal rod 1, the drive assembly 2, the left lifting member 4 and the right lifting member 7 to move downward as a whole. Then, the left large hole 401 of the left lifting member 4 and the right large hole 701 of the right lifting member 7 are aligned with the cross beam 3 and both ends of the hole 801 of the heavy object component 8. The vertical gear 207 and the clamping rod 208 of the drive assembly 2 are also aligned with both side surfaces of the cross beam 3. Start the horizontal motor 202, the vertical gear 207 and the clamping rod 208 clamp the cross beam 3, and the vertical gear 207 meshes with the vertical tooth surface of the cross beam 3. Start the vertical motor 206, the vertical gear 207 rotates, and drives the cross beam 3 to move out of the hole 801 of the heavy object component 8. Refer to Figure 1 , until the right enlarged end 302 of the cross beam 3 reaches between the vertical gear 207 and the left lifting member 4, and is ready for the next lifting.

[0053] The hook-free lifting tool of this embodiment uses a cross beam 3 to replace a general hook. Both ends of the cross beam 3 are enlarged. The left lifting member 4 and the right lifting member 7 are used to lift the cross beam 3. The cross beam 3 cannot pass through the left small hole 402 at the lower end of the left lifting member 4 and cannot pass through the right small hole 702 at the lower end of the right lifting member 7. During the lifting process, the shaking is small. Even if the heavy object component 8 collides, the cross beam 3 is not easily separated from the left lifting member 4 and the right lifting member 7, that is, the phenomenon of unhooking is not likely to occur. This hook-free lifting tool can automatically hook and unhook, without the need for construction workers to repeatedly hook and unhook at the same height, reducing potential safety hazards, reducing the construction difficulty, and improving the construction efficiency.

[0054] Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope 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 which are balanced and fixed to both ends of the horizontal rod (1); the left side portion comprises a left connecting member, a driving assembly (2), a cross beam (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) which are connected from top to bottom; the cross beam (3) has two enlarged ends; The right side portion comprises a right connecting member and a right hanging member (7); the left connecting member and the right connecting member are fixed to two 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) which are 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) move upward, and the crossbeam (3) falls into the left small hole (402) and the right small hole (702) in situ. 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).

2. The hook-free lifting tool according to claim 1, characterized in that: 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); and the left hanging member (4) is fixed to the lower end of the left vertical rod (11).

3. The hook-free lifting tool according to claim 2, characterized in that: The left side portion further comprises 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 crossbeam (3), and the driving assembly (2) can grasp the inner side of the right end of the crossbeam (3) to place the crossbeam (3) in a horizontal state.

4. The hook-free lifting tool according to claim 2 or 3, characterized in that: 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 connected to the two sections of external threads through matching internal threaded sleeves (204); 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 two side surfaces of the crossbeam (3), wherein the vertical gear (207) meshes with the vertical teeth of the crossbeam (3).

5. The hook-free lifting tool according to claim 4, characterized in that: The clamping rod (208) comprises a bottom supporting plate (2081) and a vertical plate (2082) which are connected to each other; when the vertical-grained gear (207) and the clamping rod (208) are in contact with two side surfaces of the crossbeam (3), the bottom supporting plate (2081) is supported in close contact with the bottom surface of the crossbeam (3); and the vertical plate (2082) is in close contact with the side surface of the crossbeam (3).

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

7. The hook-free lifting tool according to claim 4, 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.

8. The hook-free lifting tool according to claim 1, characterized in that: Each enlarged end of the cross beam (3) is in the shape of a spherical segment after a part of a sphere is cut off by a plane; the main body bottom surface of the cross beam (3) is a plane; and the bottom surface of each spherical segment is flush with the main body bottom surface of the cross beam (3).

9. 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).

10. 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 greater 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 greater than the horizontal width of the right small hole (702).

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