Material hoisting structure with overload warning function

Abstract

The invention relates to the technical field of transportation tools in building construction, in particular to a material hoisting structure with an overload warning function, which comprises a hoisting frame, a material box is arranged in an inner cavity of the hoisting frame, and at least two groups of load control systems are arranged in a gap between the hoisting frame and the material box. Each load control system is in transmission connection with a lifting ring system, and the lifting ring systems are in sliding connection with the lifting frame in the vertical direction. The material box drives the lifting ring system to slide downwards through the load control system under the action of gravity, the lifting ring space of the lifting ring system is reduced, and the lifting hook is prevented from being installed. According to the structure, the trigger type load control device is adopted, the lifting load of the lifting cage can be effectively controlled, the load requirement of the lifting cage can be met, the load requirement of vertical transportation equipment can also be met, and the safety of material transportation in construction is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology in building construction, specifically to a material hoisting structure with overload warning function. Background Technology

[0002] With the development of society and the economy, the requirements for construction safety in construction are getting higher and higher. During the construction process, when bulk materials (such as bricks, scaffolding accessories, formwork accessories, etc.) need to be transported to the work site, hoisting cages are usually used for hoisting. At present, the hoisting cages on the construction site are generally simple frames welded with steel bars, which cannot control the load. Overloading transportation may lead to dangerous accidents such as rope breakage and cage damage, posing a great safety hazard to construction safety. Summary of the Invention

[0003] To address the aforementioned issues, this invention proposes a material hoisting structure with an overload warning function. This structure employs a trigger-type load control device, which can effectively control the hoisting load of the cage, satisfying both the load requirements of the cage itself and the load requirements of the vertical transportation equipment, thus ensuring the safety of material transportation during construction.

[0004] To achieve the above objectives, the technical solution provided by this invention is as follows: A material hoisting structure with overload warning function includes a hanger, a material box is arranged in the inner cavity of the hanger, and at least two sets of load control systems are arranged in the gap between the hanger and the material box. Each set of load control systems is driven to a lifting ring system, and the lifting ring system is slidably connected to the hanger in the vertical direction. Under the action of gravity, the material box drives the lifting ring system to slide downward through the load control system, and the lifting ring space of the lifting ring system becomes smaller, preventing the installation of the lifting hook.

[0005] Preferably, the load control system includes a fixed plate, one end of which is connected to the hanger, and the other end of which is hinged to a transmission plate. A force transmission rod is provided on the transmission plate near the hinge point, and the force transmission rod is connected to the material box in a transmission connection. The transmission plate is connected to the lifting ring system at a point away from the hinge point.

[0006] Preferably, the outer side of the material box is provided with a height-adjustable mounting ring, which is configured to cooperate with the force transmission rod.

[0007] Preferably, a first return spring is provided between the fixed plate and the transmission plate.

[0008] Preferably, the fixing plate is provided with limit plates at both the upper and lower ends near the hinge point.

[0009] Preferably, the lifting ring system includes a lifting ring groove, a first side of the lifting ring groove is slidably connected to the hanger, a second side of the lifting ring groove is slidably connected to a lifting ring, and a second return spring is provided between the lifting ring groove and the lifting ring.

[0010] Preferably, the bottom of the lifting ring is provided with a first locking mechanism, the second side of the lifting ring slide groove is provided with a locking plate that engages with the first locking mechanism, and the upper end of the transmission plate is provided with a contact for unlocking the locking relationship between the first locking mechanism and the locking plate.

[0011] Preferably, the inner wall of the hanger is provided with at least two sets of guide mechanisms, all of which are symmetrically arranged on the hanger. The guide mechanism includes a guide bracket installed at the corner of the inner wall of the hanger, and multiple sets of rollers are installed on the side wall of the guide bracket.

[0012] Preferably, the bottom of the hanger is provided with at least one set of buffer mechanisms, the buffer mechanism including a support spring, the lower end of the support spring being connected to the hanger.

[0013] Preferably, the support spring is provided with limit plates on both the left and right sides, and a buffer plate is provided at the upper end of the support spring. The size of the buffer plate is larger than the distance between the two limit plates.

[0014] Preferably, the outer side of the material box is provided with a second locking mechanism, the second locking mechanism including an L-shaped locking plate, the vertical plate of the L-shaped locking plate being rotatably connected to the material box, the horizontal plate of the L-shaped locking plate being engaged with the outside of the discharge rotating door at the bottom of the material box, and a rotating plate being provided at the upper end of the L-shaped locking plate, the rotating plate being provided with an unlocking device.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Using this device, you can clearly see whether the material to be transported exceeds the rated load of the cage. If it is overloaded, the lifting ring system will slide down into the frame and the hook cannot be installed, thus avoiding serious accidents such as material falling due to overload and ensuring construction safety.

[0016] 2. When the material is far from the lifting point and the lifting capacity of the tower crane or other transportation equipment at that location is small, the limit load value of this device can be adjusted by adjusting the height of the hanging ring, thus ensuring the operation safety of the crane.

[0017] 3. The setting of the second locking mechanism and unlocking device can facilitate the automatic unloading of the material box and further achieve the purpose of adjusting the rated load value. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure and connection of the present invention; Figure 2 This is a schematic diagram of the hanger structure; Figure 3 for Figure 2 A magnified view of part A in the image; Figure 4 A schematic diagram of the installation structure of the hanger, load control system, and lifting ring system; Figure 5 This is a schematic diagram of the material box structure; Figure 6 This is a structural diagram of the material box from another angle; Figure 7 A schematic diagram of the normal lifting state structure where the load control system and the lifting ring system are connected; Figure 8 A schematic diagram of the overload warning state structure connecting the load control system and the lifting ring system; Figure 9 This is a schematic diagram of the load control system structure; Figure 10 This is a schematic diagram of the load control system from another angle. Figure 11 This is a schematic diagram of the lifting ring system. Figure 12 This is a schematic diagram of the first locking mechanism. Figure 13 This is a schematic diagram of the first locking mechanism from another angle. Figure 14 This is a schematic diagram of the second locking mechanism. Figure 15 This is a schematic diagram of the second locking mechanism from another angle. Figure 16 This is a schematic diagram of the material discharge rotating gate structure; In the diagram: 1. Lifting ring system; 1.1 Lifting ring; 1.2 Slide plate; 1.3 Second return spring; 1.4 First locking mechanism; 1.4.1 Connecting plate; 1.4.2 Counterweight; 1.4.3 Slot; 1.5 Lifting ring slide groove; 1.6 Clamping plate; 2. Material box; 2.1 Box body; 2.2 Bottom horizontal frame; 2.3 Hanging ring; 2.4 Support plate; 2.5 Second locking mechanism; 2.5.1 L-shaped locking plate; 2.5.2 Support; 2.5.3 Rotating shaft; 2.5.4 Vertical connecting plate; 2.5.5 Rotating plate; 2.5.6 Arc-shaped top; 2.5.7 Lifting rod; 2.5.8 Linkage rod; 2.5.9 Rotating handle. 2.6 Discharge Rotary Door; 3. Hanger; 3.1 Guide Bracket; 3.2 Lifting Ring Fixing Bolt; 3.3 Top Crossbar; 3.4 Vertical Post; 3.5 Material Box Support Rod; 3.6 Roller; 3.7 Buffer Plate; 3.8 Support Spring; 3.9 Limiting Plate; 3.10 Bottom Crossbar; 4. Load Control System; 4.1 Contact; 4.2 Wire Rope Connector; 4.3 First Reset Spring; 4.4 Transmission Plate; 4.5 Force Transmission Rod; 4.6 Pin; 4.7 Fixing Plate; 4.8 Upper Limiting Plate; 4.9 Lower Limiting Plate; 5. Wire Rope. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0021] This invention discloses a material hoisting structure with overload warning function, such as... Figure 1 As shown, the structure transforms the existing simple hoisting cage into a combined hoisting cage comprising at least four parts: an external hoisting frame 3 (equivalent to a simple hoisting cage in the prior art), a material box 2 installed inside the cavity of the external hoisting frame 3, a hoisting ring system 1 providing variable hoisting space, and a load control system 4 driving the movement of the hoisting ring system.

[0022] The structure of hanger 3 is as follows Figure 2-4As shown, the main components include a rectangular frame welded from top crossbar 3.3, uprights 3.4, bottom crossbar 3.10, and material box support rods 3.5. The hanger 3 is the main load-bearing structure. A lifting ring fixing bolt 3.2 is installed on the inner side of one upright 3.4. The axis of this lifting ring fixing bolt 3.2 is horizontally positioned. The diameter of the lifting ring fixing bolt 3.2 is calculated based on the maximum load to be lifted. One end of the lifting ring fixing bolt 3.2 passes outward through the upright 3.4 and is welded to it. The other end is threaded with a double nut for fixing the lifting ring system 1. Guide brackets 3.1 are welded to the inner side of the uprights 3.4 at the four corners using connecting plates. These guide brackets 3.1 are angle steel structures, with several sets of rollers 3.6 on their inner sides. The rollers 3.6 serve as guides and limiters, ensuring that the material box 2 slides vertically along the hanger 3 and restricting its movement in both horizontal directions. Material box support rods 3.5 are welded at the corners of two adjacent bottom crossbars 3.10. Support springs 3.8 are installed above the material box support rods 3.5 to support the material box 2 and generate elastic deformation under the load of the material box 2, converting load changes into elastic deformation changes, which serves as the basis for load control. At the same time, it plays a buffering role in the vertical movement of the material box 2 within the hanger 3. Limiting plates 3.9 are provided on both the left and right sides of the supporting spring 3.8. The limiting plates 3.9 are welded to the upper surface of the material box support rod 3.5. A buffer plate 3.7 is welded to the upper end of the spring. The height of the limiting plate 3.9 is lower than the height of the supporting spring 3.8. The width of the buffer plate 3.7 is greater than the diameter of the supporting spring 3.8 and greater than the distance between the two limiting plates 3.9. When the material box 2 over-compresses the supporting spring 3.8, the buffer plate 3.7 moves downward with the supporting spring 3.8 to the limiting plate 3.9 and abuts against the limiting plate 3.9. The buffer plate 3.7 will not continue to move downward and over-compress the supporting spring 3.8, which can effectively prevent the material box 2 from being overloaded and causing damage to the spring.

[0023] The structure of material box 2 is as follows Figure 5-6 As shown, it includes a bottom horizontal frame 2.2 and a box body 2.1, wherein two doors are symmetrically arranged at the bottom of the box body. Figure 16The discharge revolving door 2.6 is shown. The members of the bottom horizontal frame 2.2 are determined through force calculations. Support plates 2.4 are welded to the outer corners of the bottom horizontal frame 2.2. A hanging ring 2.3 is installed above the support plate 2.4. The hanging ring 2.3 is fitted onto the outside of the force transmission rod 4.5 in the load control system 4. When the material box 2 descends, it causes the hanging ring 2.3 to descend, which in turn gives the force transmission rod 4.5 a downward driving force, which can transmit the vertical displacement of the material box 2 to the load control system 4. The hanging ring 2.3 is an inverted U-shaped structure. The lower ends of the two legs of the inverted U-shaped structure are fixed to the support plate 2.4 by nuts. The upper and lower nuts at the upper and lower ends of the support plate 2.4 fix the vertical installation position of the hanging ring 2.3 on the material box 2, which can adapt to different load requirements. The outer side of the discharge rotating door 2.6 is hinged to the bottom horizontal frame 2.2 via a hinge shaft, and the discharge rotating door 2.6 is locked to the bottom horizontal frame 2.2 by a second locking mechanism 2.5. After the lock is released, it can be rotated open for unloading.

[0024] The structure of the lifting ring system is as follows Figure 7 , Figure 8 and Figure 11 As shown, it specifically includes a lifting ring slider, a lifting ring groove 1.5, a first locking mechanism 1.4, a second return spring 1.3, and a locking plate 1.6.

[0025] The lifting ring slider includes a sliding plate 1.2, a lifting ring 1.1 installed on the upper end of the sliding plate 1.2, two lower spring hooks installed on both sides of the sliding plate 1.2, and two steel wire rope knots installed on both sides of the lower end of the sliding plate 1.2.

[0026] The slide plate 1.2 has a T-shaped cross-section with an elongated hole in the middle. Spring hooks are welded to the lower two sides of the slide plate 1.2, and a hanging ring 1.1 is welded to the upper part of the slide plate 1.2. The hanging ring 1.1 has an inverted U-shaped structure, with two U-shaped legs welded to the left and right sides of the slide plate 1.2. The elongated hole in the middle of the slide plate 1.2 cooperates with the hanging ring fixing bolts 3.2 on the hanger 3, allowing the slide plate 1.2 to slide vertically along the hanger 3.

[0027] The wire rope tie ring cooperates with the wire rope connecting frame on the load control system 4 to attach the wire rope 5, thereby transmitting the vertical displacement of the load control system 4 to the lifting ring slider.

[0028] The cross-section of the lifting ring slide 1.5 is C-shaped. The two flanges of the T-shaped slide plate 1.2 are correspondingly slidably installed in the grooves on both sides of the C-shaped structure. The C-shaped groove plate can ensure that the lifting ring slider slides vertically without deviation. The outer side of the lifting ring slide 1.5 is welded to the upright 3.4 of the hanger 3.

[0029] The middle part of the lifting ring slide groove 1.5 is also provided with an elongated hole, the position and size of which correspond to the elongated hole in the middle of the lifting ring slider.

[0030] The card plate 1.6 is installed in the lower middle part of the lifting ring slide 1.5 and cooperates with the first locking mechanism 1.4. When the load reaches the predetermined value, it can lock the lifting ring slider in the vertical position and prevent the installation of the lifting hook.

[0031] An upper spring hook is welded to the upper end of the lifting ring slide 1.5 and to each of the left and right sides of the slide plate 1.2, corresponding to the two lower spring hooks at the lower end of the slide plate 1.2. A second return spring 1.3 is installed between the upper spring hooks and the lower spring hooks. The function of the second return spring 1.3 is to allow the lifting ring slider to rise along the lifting ring slide 1.5 and return to the initial position after the first locking mechanism 1.4 is released.

[0032] First locking mechanism 1.4 Figure 12 and 13 As shown, the assembly includes a connecting plate 1.4.1 and a counterweight 1.4.2 hinged below the connecting plate 1.4.1. The side of the counterweight 1.4.2 near the lifting ring groove 1.5 is in the same vertical plane as the connecting plate 1.4.1, and the bottom of this side is provided with a slope. The side of the counterweight 1.4.2 away from the lifting ring groove 1.5 protrudes outward from the connecting plate 1.4.1. That is, the counterweight 1.4.2 has an asymmetrical structure about its hinge point with the connecting plate 1.4.1. The middle part of the counterweight 1.4.2 is provided with... The slide plate 1.2 is provided with a through groove in the front and back direction. The first locking mechanism 1.4 is welded to the bottom of the slide plate 1.2 through the connecting plate 1.4.1. The function of the counterweight 1.4.2 is to make the first locking mechanism 1.4 generate a reverse rotational torque centered on the hinge point between the connecting plate 1.4.1 and the counterweight 1.4.2. After the bottom inclined surface of the first locking mechanism 1.4 touches the locking plate 1.6 and rotates outward and lifts, it can pass over the lower locking plate 1.6 under the action of the reverse torque, so that the locking plate 1.6 is inserted into the through groove and locks the vertical position of the slide plate 1.2.

[0033] Load control system 4 Figures 7 to 10 As shown, it consists of a fixed plate 4.7, a rotating plate 4.4, a contact 4.1, a wire rope connecting frame 4.2, a force transmission rod 4.5, an upper limit plate 4.8, a lower limit plate 4.9, and a first return spring 4.3.

[0034] The fixed plate 4.7 and the rotating plate 4.4 are rotatably connected by the pin 4.6. The end of the fixed plate 4.7 away from the pin 4.6 is welded to the guide bracket 3.1 of the hanger 3.

[0035] Upper limit plate 4.8 and lower limit plate 4.9 are welded to the upper and lower sides of the fixed plate 4.7 respectively. Their function is to limit the excessive rotation of the rotating plate 4.4, which would cause the mechanism to fail.

[0036] There are two sets of wire rope connecting frames 4.2, which are respectively installed on the front and rear sides of the rotating plate 4.4 away from the pin shaft 4.6. The wire rope connecting frame 4.2 is rotatably connected to the rotating plate 4.4 by a pin, and the sliding plate 1.2 of the lifting ring system 1 is pulled by the wire rope 5 and kept parallel to the sliding plate 1.2.

[0037] The force transmission rod 4.5 is located at the end of the rotating plate 4.4 near the pin 4.6, and cooperates with the hanging ring 2.3 of the material box 2 to transmit the vertical displacement of the material box 2.

[0038] A first return spring 4.3 is installed on each of the front and rear sides of the fixed plate 4.7 and the rotating plate 4.4. Its function is to keep the rotating plate 4.4 at a certain upward angle with the horizontal plane when there is no load.

[0039] A second limiting mechanism 2.5 is welded to the middle of the side of the horizontal frame 2.2 of the material box 2. This second limiting mechanism is as follows: Figure 14-15 As shown, it includes a support 2.5.2, which is a horizontally placed U-shaped structure. The middle plate of the U-shaped structure is welded to the horizontal frame 2.2. The two plates of the U-shaped structure are rotatably connected by an L-shaped locking plate 2.5.1 via a pivot. The upper side of the vertical plate of the L-shaped locking plate 2.5.1 is provided with a horizontally oriented arc-shaped top 2.5.6 to reduce friction with the rotating plate 2.5.5. The end of the horizontal plate of the L-shaped locking plate 2.5.1 is a T-shaped structure, which can hook the free ends of the two discharge rotating doors 2.6 to prevent them from opening. Figure 14 As shown, the left leg of the U-shaped support 2.5.2 is rotatably connected to the rotating plate 2.5.5 via a vertical connecting plate 2.5.4. The end of the rotating plate 2.5.5 is located between the support 2.5.2 and the horizontal frame 2.2. The right leg of the U-shaped support 2.5.2 is fitted with a sleeve, inside which a lifting rod 2.5.7 is installed. The upper part of the lifting rod 2.5.7 is connected to a connecting rod 2.5.8 and a rotating handle 2.5.9. Both the connecting rod 2.5.8 and the rotating handle 2.5.9 are perpendicularly connected to the lifting rod 2.5.7.

[0040] When loading, first rotate the rotating plate 2.5.5 to a horizontal position and tighten it against the L-shaped locking plate 2.5.1. The L-shaped locking plate 2.5.1 fixes the two discharge rotating doors 2.6 to the bottom of the box 2.1. The discharge rotating doors 2.6 are locked and loading into the box 2.1 begins. As the load on material box 2 increases, the support spring 3.8 of the compression hanger 1 is compressed. When the load reaches 95% of the preset load, the hanging ring 2.3 of material box 2 begins to contact the force transmission rod 4.5 of the load control system 4 and presses the force transmission rod 4.5 downward. Since the force transmission rod 4.5 is close to the pin 4.6, the linear velocity at the far end of the rotating plate 4.4 is much greater than the linear velocity at the force transmission rod 4.5. The wire rope connecting frame 4.2 drives the sliding plate 1.2 to move down rapidly and significantly. When the load reaches 100% of the preset load, the first locking mechanism 1.4 locks the locking plate 1.6 on the lifting ring slide 1.5. The position of the sliding plate 1.2 on the lifting ring slide 1.5 is locked. The lifting ring 1.1 slides down to a position very close to the upper surface of the lifting ring slide 1.5, leaving no space for the installation of the lifting hook, thus serving as a warning and preventing the installation of the lifting hook.

[0041] At this point, the material in the material box 2 is removed appropriately, and the material box 2 is unloaded. Under the restoring force of the support spring 3.8, the material box 2, together with the hanging ring 2.3, moves upward. The rotating plate 4.4 of the load control system 4 rotates in the opposite direction under the action of the first return spring 4.3. When the load is restored to 95% of the preset load, the contact 4.1 moves upward and touches the inclined surface at the bottom of the counterweight 1.4.2 in the second locking mechanism 1.4 on the lifting ring system 4. The counterweight 1.4.2 rotates away from the lifting ring slide 1.5. The second locking mechanism 1.4 is lifted and disengaged from the locking plate 1.6, releasing the lock. The sliding plate 1.2 returns to its initial position under the action of the second return spring 1.3. The lifting ring 1.1 rises to a position where there is sufficient space between it and the upper end of the lifting ring slide 1.5. At this point, the hook can be installed normally, and the entire cage can be lifted.

[0042] When automatic unloading is required, rotate the rotating handle 2.5.9 of the second locking mechanism 2.5, causing the connecting rod 2.5.8 to engage at the lower part of the rotating plate 2.5.5. When the cage descends until the lifting rod 2.5.7 contacts the ground, the connecting rod 2.5.8 moves upward, causing the rotating plate 2.5.5 to rotate in the opposite direction. When the rotating plate 2.5.5 rotates out of the arc-shaped top head 2.5.6 of the L-shaped locking plate 2.5.1, the L-shaped locking plate 2.5.1 rotates, the T-shaped head disengages from the discharge rotating door 2.6, and the discharge rotating door 2.6 rotates open, completing the unloading process. When automatic unloading is not required, rotate the rotating handle 2.5.9 of the second locking mechanism 2.5, causing the connecting rod 2.5.8 to no longer be located at the lower part of the rotating plate 2.5.5. At this time, the unlocking device becomes ineffective.

[0043] Adjusting the height of the mounting ring 2.3 can accommodate different load requirements. For example, if the lifting capacity of the tower crane at the material loading position is less than the rated loading capacity of this system, the height of the mounting ring 2.3 can be reduced by calculation. When the loaded material reaches the lifting capacity of the tower crane, the locking action is triggered.

[0044] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention.

Claims

1. A material hoisting structure with overload warning function, characterized in that, The utility model provides a kind of load control system, including hanger (3), the inner cavity of the hanger (3) is configured with material box (2), at least two groups of load control system (4) are provided in the gap between hanger (3) and material box (2), each group of load control system (4) is drivingly connected with hanger ring system (1), the hanger ring system (1) is slidably connected with hanger (3) in vertical direction;Material box (2) is driven hanger ring system (1) to slide down by load control system (4) under the action of gravity, the hanger ring (1.1) of hanger ring system (1) is smaller in space, prevent installation lifting hook.

2. The material hoisting structure having an overload warning function according to claim 1, characterized in that, The load control system (4) includes a fixed plate (4.7), one end of the fixed plate (4.7) is connected with the hanger (3), the other end of the fixed plate (4.7) is hinged with a transmission plate (4.4), the transmission plate (4.4) is provided with a force transmission rod (4.5) near the hinge point, the force transmission rod (4.5) is drivingly connected with the material box (2), and the transmission plate (4.4) is connected with the hanger ring system (1) away from the hinge point.

3. The material hoisting structure having an overload warning function according to claim 2, characterized in that, The outer side of the material box (2) is provided with a height-adjustable mounting ring (2.3), and the mounting ring (2.3) is matched with the force transmission rod (4.5).

4. The material hoisting structure having an overload warning function according to claim 2, characterized in that, The first reset spring (4.3) is arranged between the fixed plate (4.7) and the transmission plate (4.4).

5. The material hoisting structure having an overload warning function according to claim 2, wherein The fixed plate (4.7) is provided with a limiting plate on the upper and lower ends near the hinge point.

6. The material hoisting structure having an overload warning function according to claim 2, wherein The hanger ring system (1) includes a hanger ring sliding groove (1.5), the first side of the hanger ring sliding groove (1.5) is slidably connected with the hanger (3), and the hanger ring (1.1) is slidably connected with the second side of the hanger ring sliding groove (1.5).

7. The material hoisting structure having an overload warning function according to claim 6, wherein The bottom of the hanger ring (1.1) is provided with a first locking mechanism (1.4), the second side of the hanger ring sliding groove (1.5) is provided with a clamping plate (1.6) locked with the first locking mechanism (1.4), and the upper end of the transmission plate (4.4) is provided with a contact (4.1) for unlocking the locking relationship between the first locking mechanism (1.4) and the clamping plate (1.6).

8. The material hoisting structure having an overload warning function according to claim 1, wherein The inner wall of the hanger (3) is provided with at least two groups of guide mechanisms, and all the guide mechanisms are symmetrically arranged on the hanger.

9. The material hoisting structure having an overload warning function according to claim 1, wherein The bottom of the hanger (3) is provided with at least one group of buffer mechanisms, and the buffer mechanisms include a supporting spring (3.8), and the lower end of the supporting spring (3.8) is connected with the hanger (3). The left and right sides of the supporting spring are provided with limiting plates (3.9), and the upper end of the supporting spring (3.8) is provided with a buffer plate (3.7), and the size of the buffer plate (3.7) is greater than the distance between the two limiting plates (3.9).

10. The material hoisting structure having an overload warning function according to claim 1, wherein The outer side of the material box (2) is provided with a second locking mechanism (2.5), which comprises an L-shaped locking plate (2.5.1), the vertical plate of the L-shaped locking plate (2.5.1) is rotatably connected with the material box (2), the horizontal plate of the L-shaped locking plate (2.5.1) is clamped outside the discharge rotary door (2.6) at the bottom of the material box (2), and the upper end of the L-shaped locking plate (2.5.1) is provided with a rotating plate (2.5.5), and the rotating plate is provided with an unlocking device (2.5.5).

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