Multifunctional hoisting device

Abstract

The invention discloses a multifunctional hoisting device, and relates to the technical field of hoisting devices, the multifunctional hoisting device comprises a main hoisting beam, the main hoisting beam is provided with a hoisting ring assembly, and the position of the hoisting ring assembly can be adjusted along the length direction; the main lifting hook is arranged at one end of the main lifting beam and is used for lifting a component with a lifting hole; the upper end of the vertical arm is connected to the other end of the main lifting beam; the transverse insertion arm assembly is positioned below the main lifting beam; one end of the transverse insertion arm assembly is fixed to the vertical arm, and the other end of the transverse insertion arm assembly is a free end and can be inserted into an inner hole of the cylindrical component to lift the cylindrical component. The upper end of the double-hook lifting assembly is connected to the lower end of the vertical arm; the lower end of the double-hook lifting assembly is provided with a jack hook set arranged in the length direction of the main lifting beam and used for lifting a component with an axial lifting hole. According to the lifting appliance, a plurality of parts of different structure types of the spring operating mechanism of the circuit breaker can be lifted at the same time, the lifting appliance does not need to be replaced frequently, the assembly efficiency is effectively improved, and the operation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and in particular to a multifunctional hoisting device. Background Technology

[0002] The circuit breaker spring operating mechanism is one of the important components of high-voltage combined electrical appliances. Its main components are characterized by complex structure, large size and heavy weight, and need to be hoisted to meet assembly requirements.

[0003] Typically, different lifting hooks, ropes, and slings are used to lift various components of the circuit breaker spring operating mechanism, such as the frame, buffer, and spring cylinder. Because the components have different structures and centers of gravity, the lifting positions and methods also vary. For example, the frame and buffer have lifting holes suitable for hook lifting, but their shapes differ, requiring different hook lifting methods. Spring cylinders are suitable for horizontal lifting and require other types of lifting equipment. Therefore, for lifting such irregularly shaped components, operators usually need to be familiar with the component's structure, proficient in the lifting position and key points, and change different lifting tools according to assembly requirements, resulting in low assembly efficiency. Furthermore, ordinary lifting slings lack reliable locking and limiting devices when lifting irregularly shaped components, posing safety risks such as component slippage and detachment.

[0004] Therefore, how to provide a multi-functional lifting device that can simultaneously lift multiple components of different structural types of circuit breaker spring operating mechanisms without frequent changes of lifting tools, thereby effectively improving assembly efficiency and operational safety, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention proposes a multi-functional hoisting device, which aims to solve the technical problem of low hoisting efficiency of components of the traditional circuit breaker spring operating mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a multifunctional hoisting device, comprising:

[0008] The main lifting beam is equipped with a lifting ring assembly whose position is adjustable along its length.

[0009] The main hook is located at one end of the main lifting beam and is used to lift components with lifting holes;

[0010] An upright arm, the upper end of which is connected to the other end of the main lifting beam;

[0011] A horizontal insertion arm assembly is located below the main lifting beam; one end of the horizontal insertion arm assembly is fixed to the vertical arm, and the other end of the horizontal insertion arm assembly is a free end, which can be inserted into the inner hole of the cylindrical component to lift the cylindrical component;

[0012] A double-hook lifting assembly, the upper end of which is connected to the lower end of the boom; the lower end of the double-hook lifting assembly has a set of insertion hooks arranged along the length of the main lifting beam, for lifting components with axial lifting holes.

[0013] In use, the multifunctional lifting device of this invention can lift components with lifting holes using the main hook, such as hooking the lifting hole of the circuit breaker spring operating mechanism frame onto the main hook for lifting; the horizontal insertion arm assembly can lift cylindrical components, such as fitting the spring sleeve of the circuit breaker spring operating mechanism onto the horizontal insertion arm assembly for lifting; the double hook lifting assembly can be adapted to lift components with axial lifting holes, such as inserting the insertion hook group of the double hook lifting assembly into the axial lifting hole at one end of the buffer of the circuit breaker spring operating mechanism, and adjusting the position of the lifting ring assembly to lift the buffer horizontally. Before lifting, adjusting the position of the lifting ring assembly along the length of the main lifting beam facilitates adjusting the lifting center of gravity for lifting different items. This lifting device of the present invention has diverse functions and strong applicability, capable of simultaneously lifting multiple components of different structural types of circuit breaker spring operating mechanisms without frequent changes of lifting tools, effectively improving assembly efficiency.

[0014] As a further improvement to the above technical solution, a strip-shaped through hole is provided at the top of the main lifting beam along its length direction, and the lower part of the lifting ring assembly is slidably connected in the strip-shaped through hole along its length direction to adjust its position.

[0015] As a further improvement to the above technical solution, the bottom end of the main lifting beam is provided with a plurality of slots along the length direction corresponding to the strip-shaped through hole; the lower part of the lifting ring assembly passes through the strip-shaped through hole; the lower end of the lifting ring assembly is provided with a snap-fit ​​block that can abut against the top of the main lifting beam and be fitted into the slot.

[0016] The beneficial effects of the above technical solution are: before lifting, the position of the lifting ring assembly is adjusted by sliding along the length of the strip-shaped through hole. When the lifting ring assembly is in place, it is lifted so that the locking block is locked into the slot, preventing the lifting ring assembly from shifting laterally and achieving a stable connection of the lifting ring assembly on the main lifting beam.

[0017] As a further improvement to the above technical solution, the upper end of the main hook is hinged to one end of the main lifting beam; a second lifting ring is fixed at the top of the main lifting beam corresponding to the upper part of the main hook.

[0018] The beneficial effects of the above technical solution are: when using the main hook to lift components alone, the lifting ring two can be used as the main lifting ring to connect the lifting power equipment.

[0019] As a further improvement to the above technical solution, the horizontal insertion arm assembly includes an arm and a pressure rod; one end of the arm is fixed to the lower part of the vertical arm and arranged along the length direction of the main lifting beam; a threaded hole is opened on the upper surface of the main lifting beam corresponding to the horizontal insertion arm assembly; the pressure rod is threadedly connected to the threaded hole and can rotate and lift so that its lower end is close to or away from the outer peripheral wall of the arm.

[0020] The beneficial effects of the above technical solution are: when in use, the cylindrical components such as spring cylinders and springs are sleeved on the boom. In order to prevent the cylindrical components from shifting or falling off the boom, the lower end of the pressure rod presses against the outer wall of the cylindrical component, thereby clamping the cylindrical component on the boom and further improving the safety of hoisting.

[0021] As a further improvement to the above technical solution, the transverse insert arm assembly also includes a roller rotatably sleeved on the arm.

[0022] The beneficial effect of the above technical solution is that the main function of installing rollers on the boom is to prevent scratches on the inner walls of the components.

[0023] As a further improvement to the above technical solution, the double-hook lifting assembly includes a hook assembly one and a hook assembly two; the upper ends of both hook assembly one and hook assembly two are hinged to the lower end of the boom; the lower end of hook assembly one has a plug-in hook rod one arranged along the length direction of the main lifting beam, and the lower end of hook assembly two has a plug-in hook rod two arranged along the length direction of the main lifting beam; the plug-in hook rod one and the plug-in hook rod two together constitute a plug-in hook group that can swing and adjust the spacing.

[0024] The beneficial effects of the above technical solution are as follows: For components with axially arranged lifting holes at the end, such as the buffer of the circuit breaker spring operating mechanism, one end has multiple axially arranged lifting holes; in use, the first and second insertion hook rods are swung apart to be respectively adapted to be inserted into the two lifting holes at the end of the buffer for lifting, and the other end of the buffer can be connected to the main lifting beam through the lifting rope to realize the horizontal lifting of the buffer, and can prevent the buffer from rotating around the axis, thereby improving the lifting stability.

[0025] As a further improvement to the above technical solution, the first hook assembly includes a first swing arm, the upper end of which is hinged to the lower end of the vertical arm, and the first insertion hook rod is vertically fixed to the lower end of the swing arm; the second hook assembly includes a second swing arm, the upper end of which is hinged to the lower end of the vertical arm, and the second insertion hook rod is vertically fixed to the lower end of the second swing arm; the end of the first insertion hook rod away from the first swing arm and the end of the second insertion hook rod away from the second swing arm both have a conical protrusion for preventing the hook from disengaging from the lifting hole.

[0026] The beneficial effects of the above technical solution are: by swinging and adjusting the angle between the first and second swing rods, the distance between the first and second insertion hook rods can be adjusted, thereby adapting to the hoisting of parts with different hoisting hole spacings; the conical protrusions at the ends of the first and second insertion hook rods can facilitate insertion into the hoisting hole and effectively prevent the parts from coming out of the hoisting hole, further improving the stability of hoisting.

[0027] As a further improvement to the above technical solution, the main hook is a self-locking hook.

[0028] The beneficial effects of the above technical solution are: the main hook is selected with a self-locking hook, which can prevent parts from falling off the hook and further ensure the stability of the hoisting.

[0029] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a multifunctional hoisting device, which has the following advantages and beneficial effects:

[0030] 1. The device of the present invention reduces the number of times lifting tools need to be changed when lifting different parts, thereby improving the efficiency of lifting and assembly. On the other hand, it designs different locking structures to avoid safety incidents such as parts falling off, thereby improving the safety of lifting.

[0031] 2. The device of the present invention has the advantages of simple structure, convenient operation and strong versatility. It can also be designed into a hoisting device with more functions based on the structural characteristics of other components. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of a multifunctional hoisting device according to the present invention;

[0034] Figure 2 A top view of the main lifting beam of a multifunctional hoisting device according to the present invention;

[0035] Figure 3 A schematic diagram of the double-hook lifting component structure of a multifunctional lifting device according to the present invention;

[0036] Figure 4 A top view of the snap-fit ​​block of a multifunctional hoisting device according to the present invention;

[0037] Figure 5 A side view of the snap-fit ​​block of a multifunctional hoisting device according to the present invention;

[0038] Figure 6 Schematic diagram of the frame of the circuit breaker spring operating mechanism;

[0039] Figure 7 A schematic diagram of the spring cylinder of the circuit breaker's spring operating mechanism;

[0040] Figure 8 Axial sectional view of the buffer in the spring operating mechanism of a circuit breaker;

[0041] Figure 9 This invention Figure 8 Sectional view of AA;

[0042] In the diagram: 1. Main lifting beam; 11. Lifting ring assembly; 111. Lifting ring one; 112. Snap-fit ​​block; 1121. Protrusion; 113. Connecting rod; 12. Strip through hole; 13. Slot; 2. Main hook; 3. Vertical boom; 4. Horizontal insert boom assembly; 41. Boom; 42. Pressure rod; 421. Handle; 422. Lower pressure head; 43. Roller; 5. Double hook lifting assembly; 51. Hook assembly one; 511. Insertion hole hook rod one; 512. Swing rod one; 52. Hook assembly two; 521. Insertion hole hook rod two; 522. Swing rod two; 6. Lifting ring two; 7. Frame; 71. Lifting hole one; 8. Spring cylinder; 9. Buffer; 91. Lifting hole two; 92. Lifting hole three. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] According to embodiments of the present invention, such as Figures 1 to 6 As shown, a multi-functional lifting device includes: a main lifting beam 1, a main hook 2, a vertical boom 3, a horizontal boom assembly 4, and a double hook lifting assembly 5.

[0048] The main lifting beam 1 is equipped with a lifting ring assembly 11 whose position is adjustable along its length;

[0049] The main hook 2 is located at one end of the main lifting beam 1 and is used to lift components with lifting holes;

[0050] The upper end of the boom 3 is connected to the other end of the main lifting beam 1;

[0051] The horizontal insertion arm assembly 4 is located below the main lifting beam 1; one end of the horizontal insertion arm assembly 4 is fixed to the vertical arm 3, and the other end of the horizontal insertion arm assembly 4 is a free end, which can be inserted into the inner hole of the cylindrical component to lift the cylindrical component.

[0052] The upper end of the double hook lifting assembly 5 is connected to the lower end of the boom 3; the lower end of the double hook lifting assembly 5 has a set of insertion hooks arranged along the length of the main lifting beam 1, which is used to lift components with axial lifting holes.

[0053] In this embodiment, a multi-functional lifting device can be used to lift components with lifting holes using the main hook 2. For example, the lifting hole of the circuit breaker spring operating mechanism can be hooked onto the main hook 2 for lifting. The horizontal insert arm assembly 4 can lift cylindrical components, such as the spring sleeve of the circuit breaker spring operating mechanism, which can be fitted onto the horizontal insert arm assembly 4 for lifting. The double hook lifting assembly 5 can be adapted to lift components with axial lifting holes. For example, the hook assembly of the double hook lifting assembly 5 can be inserted into the axial lifting hole at one end of the buffer of the circuit breaker spring operating mechanism, and the position of the lifting ring assembly can be adjusted to lift the buffer horizontally. Before lifting, adjusting the position of the lifting ring assembly 11 along the length of the main lifting beam 1 facilitates adjusting the lifting center of gravity for lifting different items. This lifting device has diverse functions and strong applicability, capable of simultaneously lifting multiple components of different structural types of circuit breaker spring operating mechanisms without frequent changes of lifting tools, effectively improving assembly efficiency.

[0054] Specifically, the upper end of the boom 3 is vertically welded and fixed to the other end of the main lifting beam 1, and reinforced by welding with a reinforcing plate.

[0055] In some embodiments, a strip-shaped through hole 12 is provided at the top of the main lifting beam 1 along its length direction, and the lower part of the lifting ring assembly 11 is slidably connected in the strip-shaped through hole 12 along its length direction to adjust its position.

[0056] Specifically, the strip-shaped through hole 12 extends from the middle of the main lifting beam 1 to the end of the corresponding main lifting beam 1 near the main hook 2.

[0057] In some embodiments, the bottom end of the main lifting beam 1 is provided with a plurality of slots 13 along the length direction corresponding to the strip-shaped through hole 12; the lower part of the lifting ring assembly 11 passes through the strip-shaped through hole 12; the lower end of the lifting ring assembly 11 is provided with a snap-fit ​​block 112 that can abut against the top end of the main lifting beam 1 and be adapted to snap into the slot 13.

[0058] Before lifting, the position of the lifting ring assembly 11 is adjusted by sliding along the length of the strip-shaped through hole 12. When the lifting ring assembly 11 is in place, it is lifted so that the locking block 112 is locked into the locking groove 13 to prevent the lifting ring assembly 11 from shifting laterally and to achieve a stable connection of the lifting ring assembly 11 on the main lifting beam 1.

[0059] The lifting ring assembly 11 includes a lifting ring 111, a snap-fit ​​block 112, and a connecting rod 113; the lifting ring 111 is located above the main lifting beam 1; the snap-fit ​​block 112 is located below the main lifting beam 1; the upper part of the snap-fit ​​block 112 has a protrusion 1121 that can be adapted to snap-fit ​​with the snap-fit ​​groove 13; the connecting rod 113 passes through the strip-shaped through hole 12, the upper end of the connecting rod 113 is connected to the lower end of the lifting ring 111, and the lower end of the connecting rod 113 is connected to the snap-fit ​​block 112.

[0060] Specifically, under its own weight, the lifting ring 111 can fall to the top surface of the main lifting beam 1. At this time, the protrusion 1121 of the locking block 112 disengages from the slot 13. Under the constraint of the connecting rod 113, the lifting ring 111 can slide and adjust its position along the length of the main lifting beam 1. When lifting, the lifting ring 111 is lifted, and the locking block 112 is pulled upward by the connecting rod 113 so that its protrusion 1121 is tightly locked into the slot 13, thereby achieving horizontal lateral constraint on the lifting ring 111.

[0061] Specifically, the upper end of the connecting rod 113 is threaded to the lower end of the lifting ring 111, and the distance between the lifting ring 111 and the locking block 112 can be adjusted by screwing the lifting ring 111, so that the protrusion 1121 is locked in the slot 13; or the lower end of the connecting rod 113 is threaded to the locking block 112, and the distance between the lifting ring 111 and the locking block 112 can be adjusted by rotating the connecting rod 113, so that the protrusion 1121 is locked in the slot 13.

[0062] Specifically, when the protrusion 1121 is embedded in the slot 13, the lifting ring 111 can be tightened to the top and bottom of the main lifting beam 1 by turning the lifting ring 111. This effectively prevents the protrusion 1121 from falling out of the slot 13 and further improves the safety of the lifting operation.

[0063] In some embodiments, the upper end of the main hook 2 is hinged to one end of the main lifting beam 1; a lifting ring 6 is fixed at the top of the main lifting beam 1 directly above the main hook 2.

[0064] Specifically, the frame 7 of the circuit breaker spring operating mechanism has a lifting hole 71; the hook body of the main hook 2 can be adapted to hook into the lifting hole 71; when lifting parts using the main hook 2 alone, the lifting ring 6 can be used as the main lifting ring to connect the lifting power equipment (such as a crane).

[0065] In some embodiments, the horizontal insertion arm assembly 4 includes an arm 41 and a pressure rod 42; one end of the arm 41 is fixed to the lower part of the vertical arm 3 and arranged along the length direction of the main lifting beam 1; a threaded hole is opened on the upper surface of the main lifting beam 1 corresponding to the horizontal insertion arm assembly 4; the pressure rod 42 is threadedly connected in the threaded hole and can rotate and lift so that its lower end is close to or away from the outer peripheral wall of the arm 41.

[0066] In use, cylindrical components such as spring cylinders and springs are horizontally fitted onto the boom 41. To prevent the cylindrical components from shifting or falling off the boom 41, the lower end of the pressure rod 42 presses against the outer wall of the cylindrical component, thereby clamping the cylindrical component onto the boom 41. The horizontal insertion boom assembly 4 can be used for the horizontal lifting of cylindrical items, facilitating the horizontal assembly of such items and further improving the safety of lifting.

[0067] Specifically, a crank handle 421 is installed at the upper end of the pressure rod 42; by rotating the crank handle 421, the pressure rod 42 is turned, which facilitates operation. A lower pressure head 422 is fixed at the lower end of the pressure rod 42; the lower pressure head 422 can be made of rubber.

[0068] In some embodiments, the transverse insert arm assembly 4 further includes a roller 43 rotatably sleeved on the arm 41.

[0069] The main function of mounting the roller 43 on the boom 41 is to prevent scratches on the inner wall of the components.

[0070] In some embodiments, the double-hook lifting assembly 5 includes a hook assembly 1 51 and a hook assembly 2 52; the upper ends of both hook assembly 1 51 and hook assembly 2 52 are hinged to the lower end of the boom 3; the lower end of hook assembly 1 51 has a plug hook rod 1 511 arranged along the length direction of the main lifting beam 1, and the lower end of hook assembly 2 52 has a plug hook rod 2 521 arranged along the length direction of the main lifting beam 1; the plug hook rod 1 511 and the plug hook rod 2 521 together constitute a plug hook group that can swing to adjust the spacing.

[0071] For components with axially arranged lifting holes at the end, such as the buffer of the circuit breaker spring operating mechanism, one end has multiple axially arranged lifting holes. In use, the insertion hook rod 511 and the insertion hook rod 521 are swung apart to be respectively adapted to be inserted into the two lifting holes at the tail end of the buffer for lifting. This can realize the horizontal lifting of the buffer and prevent the buffer from rotating around the axis, thus improving the lifting stability.

[0072] It should be noted that when lifting parts with multiple axially opened lifting holes at the end, such as buffers with larger and heavier mass, the end of the part with the lifting hole is hooked to the insertion hook rod 511 and the insertion hook rod 521, and the other end of the part can be tied to the main lifting beam or the main lifting hook 2 with a lifting rope for stability, thereby reducing the load on the double hook lifting assembly 5 and improving the stability of the lifting operation.

[0073] In some embodiments, hook assembly 51 includes a rocker arm 512, the upper end of which is hinged to the lower end of the vertical arm 3, and a plug hook rod 511 is vertically fixed to the lower end of the rocker arm 512; hook assembly 52 includes a rocker arm 522, the upper end of which is hinged to the lower end of the vertical arm 3, and a plug hook rod 521 is vertically fixed to the lower end of the rocker arm 522; the end of the plug hook rod 511 away from the rocker arm 512 and the end of the plug hook rod 521 away from the rocker arm 522 both have a conical protrusion for preventing the hook from disengaging from the lifting hole.

[0074] By adjusting the angle between swing rod 512 and swing rod 522, the distance between hook rod 511 and hook rod 521 can be adjusted, thus adapting to the lifting of components with different lifting hole spacings. The conical protrusions at the ends of hook rods 511 and 521 facilitate insertion into the lifting holes 91 and 92 at the tail of the buffer 9 and effectively prevent the components from coming out of the lifting holes, further improving the stability of the lifting. The double-hook lifting assembly 5 is suitable for lifting operations of similar structural components such as buffers with lifting holes at the tail.

[0075] Specifically, the lower end of the boom 3 is provided with an installation groove along the direction perpendicular to the main lifting beam 1; both ends of the installation groove are open; the installation groove is rotatably connected to the side wall of the opposite side; both swing rod 1 512 and swing rod 2 522 are inserted into the installation groove and hinged on the hinge shaft, and the swing angle between swing rod 1 512 and swing rod 2 522 determines the distance between the insertion hook rod 1 511 and the insertion hook rod 2 521.

[0076] In some embodiments, the main hook 2 is a self-locking hook.

[0077] The main hook 2 is equipped with a self-locking hook, which can prevent parts from coming off the hook and further ensure the stability of the hoisting.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-functional hoisting device, characterized in that, include: The main lifting beam (1) is provided with a lifting ring assembly (11) whose position is adjustable along its length. Main hook (2), the main hook (2) is set at one end of the main lifting beam (1) and is used to lift components with lifting holes; An upright arm (3) is connected at its upper end to the other end of the main lifting beam (1); A horizontal insertion arm assembly (4) is located below the main lifting beam (1); one end of the horizontal insertion arm assembly (4) is fixed on the vertical arm (3), and the other end of the horizontal insertion arm assembly (4) is a free end, which can be inserted into the inner hole of the cylindrical component to lift the cylindrical component; A double-hook lifting assembly (5) is provided, with its upper end connected to the lower end of the boom (3). The lower end of the double-hook lifting assembly (5) has a set of insertion hooks arranged along the length of the main lifting beam (1) for lifting components with axial lifting holes.

2. The multi-functional hoisting device according to claim 1, characterized in that, The top of the main lifting beam (1) has a strip-shaped through hole (12) along its length direction, and the lower part of the lifting ring assembly (11) is slidably connected in the strip-shaped through hole (12) along its length direction to adjust its position.

3. The multi-functional hoisting device according to claim 2, characterized in that, The bottom end of the main lifting beam (1) is provided with a plurality of slots (13) along the length direction corresponding to the strip-shaped through hole (12); the lower part of the lifting ring assembly (11) passes through the strip-shaped through hole (12); the lower end of the lifting ring assembly (11) is provided with a snap-fit ​​block (112) that can abut against the top of the main lifting beam (1) and be fitted into the slot (13).

4. The multi-functional hoisting device according to claim 1, characterized in that, The upper end of the main hook (2) is hinged to one end of the main lifting beam (1); a second lifting ring (6) is fixed at the top of the main lifting beam (1) above the main hook (2).

5. The multi-functional hoisting device according to claim 1, characterized in that, The horizontal insertion arm assembly (4) includes an arm (41) and a pressure rod (42); one end of the arm (41) is fixed to the lower part of the vertical arm (3) and arranged along the length direction of the main lifting beam (1); a threaded hole is opened on the upper surface of the main lifting beam (1) corresponding to the horizontal insertion arm assembly (4); the pressure rod (42) is threaded in the threaded hole and can rotate and lift so that its lower end is close to or away from the outer peripheral wall of the arm (41).

6. The multi-functional hoisting device according to claim 5, characterized in that, The transverse insert arm assembly (4) also includes a roller (43) rotatably sleeved on the arm (41).

7. The multi-functional hoisting device according to claim 1, characterized in that, The double-hook lifting assembly (5) includes a hook assembly one (51) and a hook assembly two (52); the upper ends of the hook assembly one (51) and the hook assembly two (52) are both hinged to the lower end of the boom (3); the lower end of the hook assembly one (51) has a plug hook rod one (511) arranged along the length direction of the main lifting beam (1), and the lower end of the hook assembly two (52) has a plug hook rod two (521) arranged along the length direction of the main lifting beam (1); the plug hook rod one (511) and the plug hook rod two (521) together constitute a plug hook group that can swing and adjust the spacing.

8. The multi-functional hoisting device according to claim 7, characterized in that, The first hook assembly (51) includes a first swing rod (512), the upper end of which is hinged to the lower end of the vertical arm (3), and the first insertion hook rod (511) is vertically fixed to the lower end of the first swing rod (512); the second hook assembly (52) includes a second swing rod (522), the upper end of which is hinged to the lower end of the vertical arm (3), and the second insertion hook rod (521) is vertically fixed to the lower end of the second swing rod (522); the end of the first insertion hook rod (511) away from the first swing rod (512) and the end of the second insertion hook rod (521) away from the second swing rod (522) both have a conical protrusion for preventing the hook from disengaging from the lifting hole.

9. The multi-functional hoisting device according to claim 1, characterized in that, The main hook (2) is a self-locking hook.

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