Balancing hanging bracket

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a balance hanging bracket which comprises a hanging bracket body, a counterweight assembly for balancing the hanging bracket body, a tilt angle sensor for detecting the tilt angle of the hanging bracket body, and a controller for receiving detection data and controlling the counterweight assembly to move, the counterweight assembly comprises a sliding rail arranged on the top of the hanging bracket body in the first direction and the second direction, and a counterweight trolley connected with the sliding rail in a sliding mode. The counterweight trolley comprises a driving device used for controlling the counterweight trolley to slide, a battery pack used for supplying power to the driving device, and an execution element used for receiving an execution instruction transmitted by the controller; the tilt angle sensors are symmetrically arranged at the two ends of the hanging bracket body and connected with the controller.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field especially relates to a balanced hanger. BACKGROUND

[0002] When hoisting the building module, the building module is usually hoisted by the hanger, and during the hoisting process, observers often manually judge whether the hanger and the hoisted building module are inclined, and the manual judgment of whether the hanger and the hoisted building module are inclined is prone to errors.

[0003] When leveling the hoisted building module, manual adjustment is usually used to balance, and the balance of the hanger and the hoisted building module is realized by manually pulling the chain, and the manual repeated adjustment requires high labor cost and time cost, and the hoisting process cannot be self-adjusted, and the balance precision is low.

[0004] Therefore, there is an urgent need for a balanced hanger that can automatically adjust the balance of the hanger, improve the adjustment precision, and reduce the labor cost and time cost. UTILITY MODEL CONTENTS

[0005] (I) Technical problem to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a balanced hanger, which solves the technical problem of low manual leveling precision and high time cost.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:

[0009] A balanced hanger, comprising: a hanger body, a counterweight assembly for balancing the hanger body, an inclination sensor for detecting the inclination angle of the hanger body, and a controller for receiving detection data and controlling the movement of the counterweight assembly;

[0010] The counterweight assembly comprises a slide rail arranged on the top of the hanger body along the first direction and the second direction, and a counterweight trolley slidably connected with the slide rail;

[0011] The counterweight trolley comprises a driving device for controlling the sliding of the counterweight trolley, a battery pack for supplying power to the driving device, and an execution element for receiving the execution instruction transmitted by the controller;

[0012] The inclination sensor is symmetrically arranged at both ends of the hanger body, and the inclination sensor is connected with the controller.

[0013] The counterweight trolley further comprises a shell and a roller rotatably connected at the bottom of the shell;

[0014] The shell is internally provided with a steel frame structure, and the battery pack is fixed to the steel frame structure.

[0015] The mounting rods of the first direction and the second direction are intersected at the middle part of the hanger body.

[0016] The slide rails are arranged on both sides of the mounting rods, and the side surfaces of the slide rails are provided with slide grooves for connecting the rollers.

[0017] The end portions of the slide rails are provided with buffer pads embedded in the slide grooves and fixedly connected with the side walls of the slide grooves.

[0018] The mounting rods comprise first mounting rods arranged in pairs along the first direction and second mounting rods arranged in pairs along the second direction, and the first mounting rods and the second mounting rods are intersected at the middle part of the hanger body to form a rectangular frame.

[0019] The controller is fixedly arranged in the rectangular frame.

[0020] The slide rails comprise first slide rails arranged on both sides of the first mounting rods and second slide rails arranged on both sides of the second mounting rods.

[0021] The first slide rails extend from one end portion of the first mounting rods to the intersection at the middle part of the first mounting rods.

[0022] The second slide rails extend from one end portion of the second mounting rods to the intersection at the middle part of the second mounting rods.

[0023] The counterweight trolley is arranged on the first slide rail and the second slide rail.

[0024] The hanger body comprises opposite frame edges and connecting rods, and the two ends of the connecting rods are fixedly connected with the frame edges, respectively.

[0025] The bottom of the frame edge is provided with a plurality of electric hoists at equal intervals, and the hoisted object is fixedly connected with hooks at the bottom of the electric hoists.

[0026] (Three) beneficial effects

[0027] The utility model discloses a balance hanger, which is automatically balanced through the inclination sensor, the controller and the counterweight assembly arranged on the hanger body, and the automatic leveling during the hoisting process is continuously carried out, the leveling process can be carried out synchronously with the hoisting process, the operator does not need to observe and judge whether it is balanced through the naked eye, the accuracy of the balance adjustment is improved, and the labor cost and the time cost are saved.

[0028] By setting the bidirectional slide rail on the hanger body, and segmenting the slide rail in each direction, each segment of the slide rail is provided with a counterweight trolley, and each counterweight trolley can be independently moved, so that the counterweight assembly can realize balance adjustment in multiple directions.

[0029] By adopting the battery pack as an independent power supply of the counterweight trolley, the battery pack also serves as a part of the counterweight while supplying power to the trolley, which optimizes the power supply scheme and improves the counterweight structure. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a perspective view of the balanced hanger of the utility model;

[0031] Figure 2 It is a plan view of the balanced hanger of the utility model;

[0032] Figure 3 It is a front view of the balanced hanger of the utility model;

[0033] Figure 4 It is a side view of the balanced hanger of the utility model;

[0034] Figure 5 It is a partial sectional view of the balanced hanger of the utility model;

[0035] Figure 6 It is a structural schematic view of the counterweight assembly of the utility model;

[0036] Figure 7 It is a sectional view of the mounting rod and the slide rail of the utility model.

[0037] EXPLANATION OF REFERENCE NUMERALS

[0038] 1: hanger body; 11: frame; 12: connecting rod;

[0039] 2: electric hoist;

[0040] 3: mounting rod; 31: first mounting rod; 32: second mounting rod;

[0041] 4: slide rail; 41: slide groove; 42: buffer pad; 43: first slide rail; 44: second slide rail;

[0042] 5: counterweight trolley; 51: battery pack; 52: shell; 53: roller; 54: steel frame structure;

[0043] 6: controller;

[0044] 7: inclination sensor. DETAILED DESCRIPTION

[0045] For better explanation of the utility model, in order to facilitate understanding, below combining with the drawings, through specific embodiment, the utility model is described in detail. Wherein, the "upper", "lower" of the text mentioned orientation noun with Figure 1 The orientation is taken as reference.

[0046] The utility model provides a kind of balanced hanger, it is applied to hoist building module, slidable counterweight assembly, inclination sensor and controller 6 are cooperated on hanger body 1, realize the automatic adjustment of hanger body 1 balance, and in hoisting process, automatic leveling continues to carry out, leveling process can be synchronized with hoisting process, operator does not need to observe and judge whether it is balanced by naked eye, improve the accuracy of balance adjustment, save manpower cost and time cost.

[0047] Wherein, by the combination setting of slide rail 4 and counterweight trolley 5, counterweight assembly can be slided along hanger body 1 and realize balance adjustment. By the combination setting of driving device, battery pack 51 and executing element, counterweight trolley 5 can be moved according to the instruction of controller 6, realizes automatic leveling. Battery pack 51 is part of counterweight, while adjusting hanger body 1, can also provide power supply for counterweight trolley 5, optimizes power supply scheme, reduces the use of cable.

[0048] For better understanding of the above technical solutions, the exemplary embodiments of the utility model will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable clearer and more thorough understanding of the utility model, and to convey the complete scope of the utility model to those skilled in the art.

[0049] Example 1:

[0050] The utility model embodiment proposes a kind of balanced hanger, it is applied to hoist building module, building module is usually prefabricated in factory, rectangular, is quickly combined and assembled into building whole by reliable connection technology on site, is the highest construction method of current building industrialization degree.

[0051] The balanced hanger comprises a hanger body 1, a counterweight assembly for balancing the hanger body 1, an inclination sensor 7 for detecting the inclination angle of the hanger body 1, and a controller 6 for receiving the detection data and controlling the movement of the counterweight assembly. The counterweight assembly comprises a sliding rail 4 arranged at the top of the hanger body 1 along a first direction and a second direction, and a counterweight trolley 5 in sliding connection with the sliding rail 4. The counterweight trolley 5 comprises a driving device for controlling the sliding of the counterweight trolley 5, a battery pack 51 for supplying power to the driving device, and an execution element for receiving the execution instructions transmitted by the controller 6. The inclination sensor 7 is symmetrically arranged at both ends of the hanger body 1 along the center line of the hanger body 1, and the inclination sensor 7 is connected to the controller 6. The inclination angle of the hanger body 1 is detected in real time by the inclination sensor 7, and the detection data is sent to the controller 6. The controller 6 determines whether the hanger body 1 is balanced according to the detection data. If not, the controller 6 sends execution instructions to the execution element. After the execution element receives the execution instructions, the driving device is started to drive the counterweight trolley 5 to move. The controller 6 controls the moving direction of the counterweight trolley 5 by controlling the rotating direction of the output end of the driving device, thereby realizing the automatic leveling of the hoisted object.

[0052] The hanger body 1 comprises oppositely arranged side frames 11 and connecting rods 12. The connecting rods 12 are arranged between the two side frames 11, and the two ends of the connecting rods 12 are fixedly connected with the side frames 11, respectively. The hanger body 1 for hoisting the building module is formed by the combination of the side frames 11 and the connecting rods 12. The connecting rods 12 are arranged to facilitate the installation of the counterweight assembly on the top of the hanger body 1.

[0053] The inclination sensor 7 is symmetrically arranged at both ends of the hanger body 1 along the center line of the hanger body 1. In this embodiment, four inclination sensors 7 are arranged at the four corners of the hanger body 1, respectively, for identifying the posture of the hanger body 1 in the plane. Two of the inclination sensors 7 are X-axis inclination sensors 7, and the other two are Y-axis inclination sensors 7. The inclination sensor 7 is connected to the controller 6 to feed back the detection data to the controller 6.

[0054] The top of the connecting rod 12 is provided with intersecting mounting rods 3 along the first direction and the second direction. The first direction is perpendicular to the second direction. The mounting rods 3 along the first direction and the second direction intersect at the center of the hanger body 1.

[0055] The mounting rod 3 is in a straight line type. The mounting rod 3 is used for mounting the counterweight assembly and the controller 6. The mounting rod 3 comprises first mounting rods 31 arranged in pairs along the first direction, and second mounting rods 32 arranged in pairs along the second direction. The first mounting rods 31 and the second mounting rods 32 intersect at the middle part of the hanger body 1, forming a rectangular frame. The rectangular frame is used for mounting the controller 6. The controller 6 is fixed at the center of the hanger body 1, so that the controller 6 does not affect the balance of the hanger body 1.

[0056] The counterweight assembly is used to adjust the balance of the hanger body 1, and comprises a slide rail 4 and a counterweight trolley 5 slidably connected with the slide rail 4.

[0057] The slide rail 4 comprises a first slide rail 43 arranged along both sides of the first mounting rod 31 and extending from one end of the first mounting rod 31 to the intersection of the first mounting rod 31 and the second mounting rod 32, and a second slide rail 44 arranged along both sides of the second mounting rod 32 and extending from one end of the second mounting rod 32 to the intersection of the second mounting rod 32 and the first mounting rod 31, so that the first mounting rod 31 and the second mounting rod 32 respectively form two sections of the first slide rail 43 and the second slide rail 44 at both ends, and four sections of the slide rail 4 at the top of the hanger body 1, and one counterweight trolley 5 is arranged corresponding to each section of the slide rail 4, so that the plurality of counterweight trolleys 5 can slide in four directions respectively, improving the flexibility of the counterweight assembly.

[0058] The side surface of the slide rail 4 is provided with a slide groove 41 which is open to the side surface and has a width smaller than that of the groove, so that the rollers 53 of the counterweight trolley 5 can be fitted in the slide groove 41. The two ends of the slide rail 4 are provided with a buffer pad 42 which is embedded in the slide groove 41 and fixedly connected with the slide rail 4. The buffer pad 42 serves as a buffer device of the counterweight trolley 5, which prevents the counterweight trolley 5 from being directly contacted with the rigid connecting piece when the counterweight trolley 5 runs to the end of the slide rail 4, and also plays a role of intercepting the counterweight trolley 5.

[0059] The counterweight trolley 5 comprises a shell 52, a driving device for controlling the sliding of the counterweight trolley 5, a battery pack 51 for supplying power to the driving device, and an execution element for receiving the execution instruction transmitted by the controller 6.

[0060] The shell 52 has a regular rectangular shape, and two rows of rollers 53 are arranged on both sides of the bottom of the shell 52 and embedded in the slide groove 41 to be slidably connected with the slide groove 41. A steel frame structure 54 is arranged in the shell, and the battery pack 51 is fixedly arranged in the steel frame structure 54 as a driving power source of the counterweight trolley 5 and as a part of the counterweight for balancing the hanger body 1, which optimizes the counterweight structure and power supply scheme and saves the use of cables.

[0061] The driving device adopts a driving motor to drive the rotation of the rollers 53, and the rotation direction of the rollers 53 is adjusted by controlling the rotation direction of the output end of the motor, so as to control the rotation direction of the counterweight trolley 5. The execution element and the driving device are both integrated and installed in the shell 52 to realize the driving and control of the counterweight trolley 5.

[0062] The controller 6 is associated with the inclination sensor 7 and the execution element, and is used to receive the detection data of the inclination sensor 7 and send execution instructions to the execution element, which controls the movement of the counterweight trolley 5 along the slide rail 4.

[0063] The bottom of the frame 11 is provided with a plurality of electric hoists 2, which are arranged at equal intervals along the length direction of the frame 11, and the bottom of each electric hoist 2 is provided with a hook, and the building module is fixedly connected with the hook at the bottom of the electric hoist 2.

[0064] After the hoisted object is mounted on the hoist hook, the lengths of the hoist chains are adjusted to be equal, so that the inclined state of the hoisted object can be synchronized in real time to the hoist body 1, so that the inclination sensor 7 on the hoist body 1 detects, and after the hoist realizes self-balancing adjustment, the hoisted goods are synchronized and leveled by the electric hoist 2.

[0065] When the hoist body 1 hoists the building module, the inclination sensor 7 detects the posture of the hoist body 1 in real time, and feeds back the detection data to the controller 6. The controller 6 controls the direction of the counterweight according to the detection data fed back by the inclination sensor 7, receives the angle information transmitted by the inclination sensor, determines the direction of the counterweight required to be applied, and converts it into a radio signal to send to the execution element. The execution element receives the execution instruction, and the counterweight trolley 5 in the specified direction executes the displacement instruction, and the balance state of the hoist body 1 changes. At this time, the data of the inclination sensor 7 continues to change until the angle deviation transmitted by the inclination sensor 7 is stable within the preset range, and the controller 6 sends a brake instruction to the execution element, and the brake system of the execution element starts immediately to ensure that the counterweight trolley 5 stops moving at the current position of the slide rail 4, and finally realizes the leveling of the hoist body 1.

[0066] When the hoist body 1 hoists the building module, the inclination sensor 7 continuously detects and feeds back data to the controller 6 in real time. If the hoist body 1 is inclined, the controller 6 will automatically control the counterweight trolley 5 to counterweight and level the hoist body 1, without manual intervention, saving manpower and time cost.

[0067] Embodiment 2:

[0068] A plurality of counterweight trolleys 5 can be arranged on each track 4, but the number of counterweight trolleys 5 on each track 4 should be the same, and anti-friction buffers can be arranged at the corners of the shell 52 according to actual needs to avoid friction damage between adjacent counterweight trolleys 5. The specific number of counterweight trolleys 5 is configured according to the actual needs of hoisting the building module.

[0069] Embodiment 3:

[0070] The controller 6 can be a remote control device, and a remote control receiver is built-in the controller 6, which communicates with the inclination sensor 7 on the hoist body 1 and the execution element of the counterweight trolley 5 through wireless signals. The remote control receiver is matched with a terminal remote controller, and the operator can start or stop the balancing work of the counterweight assembly by operating the terminal remote controller.

[0071] The controller 6 can be further designed in the form of a touch panel, and an open operation terminal is provided to make manual intervention more convenient.

[0072] Embodiment 4:

[0073] The battery pack 51 is detachably arranged in the steel frame structure 54 of the shell 52 to meet the power demand in different scenarios and the counterweight demand, and the total weight of the four counterweight trolleys 5 loaded with the battery pack 51 on the four-direction track 4 can reach 2t, that is, the single-direction counterweight can reach 500kg.

[0074] Embodiment 6:

[0075] Optionally, a circular mounting rod 3 is additionally arranged in the middle of the hanger body 1, circular slide rails 4 are arranged on both sides of the circular mounting rod 3, and counterweight trolleys 5 are arranged on the circular slide rails 4.

[0076] Further, straight-line slide rails 4 are arranged radially along the circular slide rails 4, and counterweight trolleys 5 are arranged on the straight-line slide rails 4, so that counterweights in various directions can be realized.

[0077] Embodiment 7:

[0078] The steps of balancing and adjusting the hoisted goods by the balanced hanger are as follows:

[0079] Step one: loading the battery pack 51 into the counterweight assembly;

[0080] Step two: hoisting the goods 8 to be hoisted by the electric hoist 2;

[0081] Step three: detecting the tilting direction and angle of the hanger body 1 by the tilt sensor 7 at the corner of the hanger body 1, and transmitting the detection data to the controller 6;

[0082] Step four: the controller 6 receives the angle information transmitted by the tilt sensor 7, judges the direction of the counterweight to be applied, and converts it into an execution instruction sent to the execution element;

[0083] Step five: the execution element receives the execution instruction of the controller 6, controls one or more counterweight trolleys 5 to slide in the specified direction along the slide rail 4, and adjusts the posture of the hanger body 1;

[0084] Step six: in the process of sliding of the counterweight trolley 5, the tilt sensor 7 continuously detects the tilting angle and position of the hanger body 1, and transmits the detection data to the controller 6 in real time;

[0085] Step seven: the controller 6 judges whether the counterweight trolley 5 stops moving or the counterweight trolley 5 in a different position continues to move until the position of the hanger body 1 reaches the preset balance standard according to the transmission data of the tilt sensor 7.

[0086] Wherein, the balance standard is that the tilt angle sensor 7 detects that the tilt angle of the hanger body 1 is stable in the preset range, at this time, the gravity centers of the hanger body 1 and the hoisted object coincide on the vertical line of the hoisting point, and the controller 6 sends the brake instruction to the counterweight trolley 5.

[0087] The utility model provides a kind of balanced hanger, by being equipped with tilt angle sensor 7, controller 6 and counterweight assembly on hanger body 1 makes hanger can be automatically balanced, and leveling automatic continues to carry out in hoisting process, leveling process can be carried out with hoisting process synchronously, without operator observing and judging whether it is balanced by naked eye, improve the accuracy of balance adjustment, save manpower cost and time cost.

[0088] By being equipped with bidirectional slide rail 4 on hanger body 1, and the slide rail 4 of each direction is sectioned, each section of slide rail 4 is equipped with counterweight trolley 5, and each counterweight trolley 5 can be independently moved, so that counterweight assembly can realize balance adjustment in multiple directions.

[0089] By using battery pack 51 as the independent power supply of counterweight trolley 5, battery pack 51 is also part of counterweight while supplying power for trolley, which optimizes power supply scheme and improves counterweight structure.

[0090] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0091] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0092] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0093] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0094] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A counterbalanced hanger, characterized in that, The balanced hanger comprises a hanger body (1), a counterweight assembly for balancing the hanger body (1), an inclination sensor (7) for detecting the inclination angle of the hanger body (1), and a controller (6) for receiving detection data and controlling the movement of the counterweight assembly. The counterweight assembly comprises a slide rail (4) arranged on the top of the hanger body (1) along a first direction and a second direction, and a counterweight trolley (5) slidably connected with the slide rail (4). The counterweight trolley (5) comprises a driving device for controlling the sliding of the counterweight trolley (5), a battery pack (51) for supplying power to the driving device, and an execution element for receiving execution instructions transmitted by the controller (6). The inclination sensor (7) is symmetrically arranged at both ends of the hanger body (1), and the inclination sensor (7) is connected with the controller (6).

2. The balanced hanger according to claim 1, wherein the counterweight trolley (5) further comprises a shell (52), and a roller (53) rotatably connected to the bottom of the shell (52). A steel structure (54) is arranged in the shell, and the battery pack (51) is fixed to the steel structure (54).

3. The balanced hanger according to claim 2, wherein the top of the hanger body (1) is provided with intersecting mounting rods (3) along the first direction and the second direction, the first direction is perpendicular to the second direction, and the mounting rods (3) along the first direction and the second direction intersect at the middle part of the hanger body (1).

4. The balanced hanger according to claim 3, wherein the slide rails (4) are arranged along the two sides of the mounting rods (3), the side surfaces of the slide rails (4) are provided with sliding grooves (41) for connecting the rollers (53), and the rollers (53) are embedded in the sliding grooves (41).

5. The balanced hanger according to claim 4, wherein the end portions of the slide rails (4) are provided with buffer pads (42), the buffer pads (42) are embedded in the sliding grooves (41), and the buffer pads (42) are fixedly connected with the side walls of the sliding grooves (41).

6. The balanced hanger according to claim 3, wherein the mounting rods (3) comprise first mounting rods (31) arranged in pairs along the first direction, and second mounting rods (32) arranged in pairs along the second direction, the first mounting rods (31) and the second mounting rods (32) intersect at the middle part of the hanger body (1) to form a rectangular frame.

7. The balanced hanger according to claim 6, wherein the controller (6) is fixedly arranged in the rectangular frame.

8. The balanced hanger according to claim 6, wherein the slide rails (4) comprise first slide rails (43) arranged along the two sides of the first mounting rods (31), and second slide rails (44) arranged along the two sides of the second mounting rods (32). The first slide rails (43) extend from one end of the first mounting rods (31) to the intersection at the middle part of the first mounting rods (31). ​ ​ ​ ​ ​ ​ ​ ​ The second sliding rail (44) extends from one end of the second mounting rod (32) to the intersection of the middle of the second mounting rod (32); The first sliding rail (43) and the second sliding rail (44) are both provided with the counterweight trolley (5).

9. The balanced hanger according to claim 1, wherein, The hanger body (1) comprises oppositely arranged side frames (11) and connecting rods (12), and the two ends of the connecting rod (12) are fixedly connected with the side frames (11) respectively.

10. The balanced hanger according to claim 9, wherein, A plurality of electric hoists (2) are arranged at the bottom of the side frame (11) at equal intervals, and the hoisted object is fixedly connected with the hook at the bottom of the electric hoist (2).

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