Intelligent hoisting mechanism in vertical shaft and application method thereof

Abstract

According to the intelligent hoisting mechanism in the vertical shaft and the application method of the intelligent hoisting mechanism, the hoisting mechanism achieves high safety and stability in the hoisting process through accurate control over the weightlessness monitoring module, the telescopic device and the lifting platform. The lifting platform has the functions of automatically adjusting the lifting direction and preventing falling and is matched with a hydraulic system to accurately control the height of the platform, so that the working efficiency and precision are greatly improved. In addition, due to the design of the rope guiding piece and the lifting platform, the stability is enhanced, and safe transportation of goods in the narrow tube well is ensured. According to the device, the tube well in a building can be fully utilized as a transportation channel of materials and small equipment, the pressure of vertical transportation is relieved, multifunctionality and flexibility are achieved, and meanwhile potential safety hazards and operation problems in hoisting operation can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting in narrow shafts, and particularly to an intelligent hoisting mechanism in a shaft and its application method. Background Art

[0002] Currently, during the construction of buildings, the problem of vertical transportation has not been well solved. Especially in shaft buildings, the transportation of any equipment, building materials, accessories, and personnel depends on tower cranes or elevators. However, the construction operations involve multiple specialties such as construction, electromechanics, and decoration. Therefore, the vertical transportation operations in shaft buildings face problems such as a large total transportation volume, a large single transportation weight, high costs, and high lifting heights, causing these two vertical transportation devices to be overloaded. Many hoisting operations are forced to be carried out at night, resulting in the occurrence of construction nuisance.

[0003] Due to the lack of monitoring and intelligent braking devices in tower cranes and elevators (generally external elevators), they are greatly affected by the external environment during transportation and there are certain safety hazards. Once encountering rainy, snowy days or winds exceeding a certain level, the transportation operations will be forced to stop or be restricted, further delaying the construction progress. Moreover, the removal of external elevators or tower cranes is difficult, and the maintenance operations are also restricted by the environment, so the costs are high and the cycle is frequent.

[0004] When there are multiple operation contradictions in the vertical transportation in shaft buildings, generally the building materials are transported first (due to the structural acceptance being ahead), which seriously affects the progress of the electromechanics and decoration projects, and further intensifies the contradictions between specialties.

[0005] When the pipe shafts in shaft buildings or other buildings are completed along with the structural construction, they are often in an idle state and temporary guardrails are set up around them to prevent high-altitude falls. Therefore, based on the above problems, there is an urgent need to develop a tooling for vertical transportation that utilizes the idle building space and has a certain degree of intelligence and safety to alleviate the above contradictions. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent hoisting mechanism in a shaft and its application method that can improve safety, stability, accuracy, and effectively solve the common safety hazards and efficiency problems in the hoisting process.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: An intelligent hoisting mechanism in a shaft, used for carrying goods in a narrow pipe shaft, is characterized by comprising a rectangular frame, a telescopic device, and a hook; Doors are respectively arranged on the front and rear sides of the rectangular frame, and the goods are placed into the rectangular frame through the doors; The telescopic device is arranged on the left and right sides of the rectangular frame, and is used to facilitate erection on the floor slab after a sudden fall during the hoisting process; The hooks are multiple and evenly arranged on the top of the rectangular frame. The lifting mechanism arranged above the shaft is connected to the hooks through steel wire ropes to lift the rectangular frame into the narrow pipe shaft. Among them, the hook is provided with a weightlessness monitoring module, which is used to monitor in real time the force applied to the hook during the lifting or lowering process. When it is monitored that the force applied to the hook is lower than a threshold, it is determined that an abnormal situation exists, and the monitoring data is sent to the control system. The control system controls the telescopic device to open the safety hidden device erected on the floor to prevent further falling.

[0008] Preferably, openable side doors are respectively provided on the left and right sides of the rectangular frame for assisting in transporting the goods out of the rectangular frame from the side.

[0009] Preferably, the telescopic device comprises a pair of upper telescopic devices and lower telescopic devices of the same structure; A pair of upper telescopic devices are symmetrically arranged on both sides of the rectangular frame and located above the side-opening door, including an upper telescopic plate and an upper hydraulic rod. The upper hydraulic rod is connected to a control system, and the upper telescopic plate is pushed to rotate, extend, open, or retract and close by controlling the extension of the upper hydraulic rod. A pair of lower telescopic devices are symmetrically arranged on both sides of the rectangular frame and located below the side-opening door, and include a lower telescopic plate and a lower hydraulic rod. The lower hydraulic rod is connected to a control system, and the lower telescopic plate is pushed to rotate, extend, open, or retract and close by controlling the extension of the lower hydraulic rod. The coverage area of ​​the upper telescopic plate and the lower telescopic plate after being stretched and opened is larger than the pipe well area, and at the same time, it is ensured that the distance from the projection line of the edge of the upper telescopic plate or the lower telescopic plate in the vertical direction to the floor slab after being stretched is at least greater than 5 cm; A rhythm controller is provided to coordinate the movement of the upper telescopic device and the lower telescopic device, so that the upper telescopic device and the lower telescopic device are alternately extended and opened and retracted and closed during the lifting or lowering process, thereby avoiding obstacles in the shaft and preventing the telescopic device from interfering with or colliding with the floor or obstacles in the shaft; The eversion angle of the upper and lower telescopic plates after the maximum rotation is 90°. When the control system detects that there is an abnormal situation, the control system controls the upper and lower telescopic plates to be extended and opened at the same time, that is, to be perpendicular to the original movement path after being extended and opened, so that when the rectangular frame is falling, the upper and lower telescopic plates can be supported on the nearest floor or obstacle structure in the shaft in time, play a blocking and limiting role, prevent the rectangular frame from continuing to fall, thereby reducing safety hazards; In addition, when the pipe well structure is limited and the side door cannot be opened, the upper telescopic plate or the lower telescopic plate is connected to the floor slab to form a transport ramp, so that the goods can be smoothly dragged out.

[0010] Preferably, it also includes a lifting device, which is arranged in the rectangular frame and includes a lifting platform, a lifting hydraulic rod and a folding frame; The lifting hydraulic rod is connected to the folding frame and driven by the control system. The lifting hydraulic rod is controlled to push the folding frame to extend and open. The top of the folding frame is connected to the lifting platform, so that the lifting platform rises or falls in the rectangular frame, thereby raising or lowering the carried goods. The cargo is adjusted to a plane flush with the side door through the lifting platform, so that the cargo can be smoothly moved out of the rectangular frame through the side door.

[0011] Preferably, the lifting device further comprises a guide plate and a longitudinal guide groove; The guide plates are in two pieces, which are vertically arranged in a rectangular frame and located on both sides of the lifting platform. Longitudinal guide grooves are provided at the opposite positions of the two guide plates. The two sides of the lifting platform are slidably arranged in the longitudinal guide grooves through guide blocks, thereby limiting the lifting range of the lifting platform.

[0012] Preferably, the lifting device further comprises a folding frame guide block; The folding frame guide blocks are in two groups, which are respectively arranged at the bottom of the rectangular frame and the bottom of the lifting platform to limit the sliding range of the folding frame.

[0013] Preferably, it further comprises a weight sensor, which is arranged at the bottom of the rectangular frame and is used to measure the weight of the rectangular frame; The weight sensor is electrically connected to the control system. When the rectangular frame suddenly loses weight or falls during the process of lifting or lowering, the weight of the rectangular frame detected by the weight sensor changes abnormally. The weight sensor feeds back the data of the abnormal change to the control system. The control system links the weight loss monitoring module to make a judgment based on the weight change. The control system triggers a safety control instruction to control the upper and lower telescopic plates to be supported on the nearest floor or obstacle structure in the shaft in time, so as to play a blocking and limiting role, prevent the rectangular frame from continuing to fall, thereby effectively preventing the risk of falling and ensuring safe operation.

[0014] Preferably, a hoisting stability structure is further included. The hoisting stability structure includes rope guides arranged on both sides of the door body. The rope guides are two groups of through-hole assemblies symmetrically arranged on both sides of the door body. A steel wire sling used in the hoisting process passes through the through holes, so as to achieve the effect of stable transportation during the hoisting process and prevent shaking within the horizontal range.

[0015] Preferably, a top opening cover that can be opened and closed is provided at the top of the rectangular frame for assisting in transporting goods out from the upper part.

[0016] Furthermore, the present invention also provides an application method of an intelligent hoisting mechanism in a shaft, including the following steps: Step S0: Before the hoisting operation, start the control system of the intelligent hoisting mechanism to complete the following initialization work: Confirm that the rectangular frame has been installed in the shaft and the guiding and limiting structures are complete; Confirm that the lifting platform is in the initial position, and the telescopic device and the hook of the hanging device are in a workable state; Start the weight sensor and the weightlessness monitoring module to perform sensor calibration to ensure accurate monitoring data; Step S1: Open the door body or the side opening door, place the goods to be transported on the lifting platform, and detect whether the transported goods meet the transportation weight through the weight sensor at the bottom of the lifting platform; and during the hoisting process, the weight sensor and the weightlessness monitoring module form a logical relationship. When the weight sensor weighs the weight of the transported goods, by setting the acceleration limit for lifting or lowering, the weightlessness monitoring module monitors the force on the hook in real time to determine whether the hoisting state is normal or abnormal. Step S2: Adjust the lifting hydraulic rod through the control system to drive the folding frame to extend and open, lower the lifting platform, and embed the goods in the rectangular frame to achieve stable transportation; Step S3: The hoisting mechanism arranged above the shaft connects the hook through a steel wire sling to hoist the rectangular frame into a narrow pipe well and perform lifting transportation from the narrow pipe well; During the lifting hoisting process, the movement of the upper telescopic plate and the lower telescopic plate is coordinately controlled by setting a beat controller, so that the upper telescopic plate and the lower telescopic plate alternately extend and open and contract and close during the lifting process, so as to avoid obstacles in the shaft and prevent the telescopic device from interfering with or colliding with the floor or obstacles in the shaft; At the same time, the weightlessness monitoring module obtains the numerical value of the force on the hook in real time and continuously transmits the data to the control system; the control system dynamically judges and analyzes the numerical value of the force. When it is detected that the force on the hook is less than the preset safety threshold, it is determined that there is an abnormal situation in the current hoisting state, and the abnormal situation includes but is not limited to the falling off of the suspended object, the breaking of the steel wire rope, or the impending fall of the goods; When it is determined to be an abnormal situation, the control system immediately issues a control command to control the upper and lower telescopic plates to be supported on the nearest floor or obstacle structure in the shaft in time, so as to play a blocking and limiting role, prevent the rectangular frame from continuing to fall, thereby effectively preventing the risk of falling, blocking the hook or lifting platform from continuing to fall, preventing the rectangular frame from falling freely, and ensuring the safety of the operation; Furthermore, when the rectangular frame suddenly loses weight or falls during the lifting process, causing the weight of the rectangular frame detected by the weight sensor to change abnormally, the weight sensor feeds back the data of the abnormal change to the control system, and the control system links the weight loss monitoring module to make a judgment based on the weight change. The control system triggers a safety control instruction to control the upper and lower telescopic plates to be supported on the nearest floor or obstacle structure in the shaft in time, so as to play a blocking and limiting role, and prevent the rectangular frame from continuing to fall, thereby effectively preventing the risk of falling and ensuring operation safety. Step S4: In addition, by passing the steel wire rope through the rope guide on the outside of the rectangular frame, additional support can be provided to prevent the rectangular frame from shaking in the horizontal range during the lifting process; Step S5: After hoisting to the target position, open the side door, control the lifting hydraulic rod to push the folding frame to extend, and raise the height of the lifting platform so that the bottom surface of the cargo on the lifting platform is flush with the bottom surface of the side door; Step S6: Adjust the lower hydraulic rod so that the lower telescopic plate contacts the plane of the floor slab. At this time, the slope formed by the lower telescopic plate is adjusted; guide the movement of the cargo through the traction rope, and use the slope formed by the lower telescopic plate to smoothly drag the cargo out of the rectangular frame; Step S7: Similarly, when it is necessary to lower the telescopic plate for hoisting and transportation, the upper telescopic plate and the lower telescopic plate are also coordinated and controlled by setting a beat controller, so that the upper telescopic plate and the lower telescopic plate are alternately extended and opened and retracted and closed during the descending process, so as to avoid obstacles in the shaft and prevent the telescopic device from interfering with or colliding with the floor or obstacles in the shaft; Also, during the hoisting process, the force value of the hook is monitored by the weight loss monitoring module, and the weight of the rectangular frame is detected by the weight detection sensor. When either the weight loss monitoring module or the weight detection sensor detects that the force on the hook is less than a preset safety threshold or the weight of the rectangular frame suddenly drops, the weight loss monitoring module or the weight detection sensor or both of them work together to quickly feed back the collected force value or weight data to the control system. The control system controls the upper and lower telescopic plates to rotate outward and open, so that they can be erected on the nearest two side floors in the shaft when falling, and will not continue to fall, thereby avoiding safety hazards of hoisting.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Improve the safety of hoisting operations: The present invention monitors the changes in force and weight during the hoisting process in real time through a weightlessness monitoring module and a weight sensor. When it is found that there is too fast lifting, weightlessness or abnormal falling during the hoisting process, the control system immediately takes measures to support on the floor or obstacle structure in the shaft through the telescopic device, preventing the rectangular frame from continuing to fall, thereby effectively preventing the risks of falling and the fracture of the wire rope due to too fast lifting, and ensuring the safety of the operation.

[0018] 2. Avoid damage to equipment and goods: The telescopic device provided by the present invention (including an upper telescopic plate and a lower telescopic plate) can alternately extend and open and contract and close, avoiding obstacles in the shaft, preventing the telescopic device from interfering or colliding with the floor or other obstacles in the shaft, ensuring the smooth progress of the hoisting operation, and reducing the risk of damage to equipment and goods.

[0019] 3. Improve the efficiency of hoisting operations: The system of the present invention can perform coordinated control in real time during the hoisting process through an intelligent control system and automatic adjustment, improving the accuracy and efficiency of the transportation operation, reducing human operation errors, and ensuring that all links during the hoisting process are efficient and orderly.

[0020] 4. Enhance the stability of vertical transportation: By setting a rope guide, the present invention avoids the horizontal shaking of the rectangular frame during the hoisting process, provides additional support, makes the hoisting operation more stable, is especially suitable for vertical transportation in narrow spaces, and ensures the safety and reliability during the operation process.

[0021] 5. Intelligent operation and control: The system of the present invention is equipped with an intelligent control system. By real-time feedback of monitoring data and dynamically adjusting the telescopic device, it can independently judge and make safe decisions in complex environments, greatly reducing human operation errors and improving the safety and intelligent level during the construction process.

[0022] 6. Adapt to various working environments: When the pipe well structure is limited during the implementation of the present invention, it can form a transportation ramp by connecting the upper telescopic plate or the lower telescopic plate to the floor, enabling the goods to be smoothly dragged out of the rectangular frame, adapting to diverse working environments and complex operating conditions, and ensuring the flexibility of the operation.

[0023] Meet more hoisting environments: The top of the rectangular frame in the present invention is provided with an openable top cover. Through the top cover, goods can be assisted to be transported out from the top of the rectangular frame, thereby meeting more hoisting environments.

[0024] Avoid risks and construct safely: By the operation of the beat controller, the present invention always ensures that one side of the telescopic plate can open to cover an area larger than the plane range of the pipe well, so that in the case of the failure of the automatic control and sensing system, when the risk of falling occurs, the frame can be safely placed on the floor in the pipe well.

[0025] In summary, the present invention has significant advantages in improving safety, stability, accuracy, and operation flexibility, and can effectively solve the common safety hazards and efficiency problems during the hoisting process. At the same time, the present invention utilizes the existing space in the shaft for intelligent hoisting, avoiding the noise and safety risks brought to the surrounding residents by high-altitude operations, reducing the phenomenon of construction disturbing the people, and improving the friendliness of the construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of an intelligent hoisting mechanism in a shaft provided by an embodiment of the present invention; Figure 2 is a schematic diagram of the internal structure of an intelligent hoisting mechanism in a shaft provided by an embodiment of the present invention; Figure 3 is a schematic diagram of the partial exploded side view structure of an intelligent hoisting mechanism in a shaft provided by an embodiment of the present invention; Figure 4 is Figure 3 a partial enlarged schematic diagram of A-A in Figure 5 is Figure 4 a partial enlarged schematic diagram of A in Figure 6 is Figure 4 a three-dimensional structural schematic diagram of Figure 7 is a working flow chart of an intelligent hoisting mechanism in a shaft provided by Embodiment 1 of the present invention; Figure 8 is an intelligent hoisting mechanism in a shaft provided by Embodiment 2 of the present invention applied to Figure 10 and Figure 11 a simple construction drawing of Figure 9 is Figure 8 the distance from the edge projection line of the extended telescopic plate in the vertical direction to the floor in Figure 10 is an application diagram of an intelligent hoisting mechanism in a shaft provided by Embodiment 2 of the present invention for hoisting and transporting in the shaft; Figure 11 is an application diagram of an intelligent hoisting mechanism in a shaft provided by Embodiment 2 of the present invention for lowering and hoisting and transporting in the shaft.

[0027] The sequence numbers in the figures are as follows: 100, Hoisting mechanism; 101, Door body; 102, Top opening cover; 103, Side opening door; 104, Auxiliary hook; 200, Upper telescopic device; 201, Upper telescopic plate; 202, Upper hydraulic rod; 300, Lower telescopic device; 301, Lower telescopic plate; 302, Lower hydraulic rod; 400, Hook; 500, Lifting device; 501, Lifting platform; 502, Lifting hydraulic rod; 503, Folding frame; 504, Guide plate; 505, Longitudinal guide groove; 506, Folding frame guide block; 600, Rope guide; 700, Floor slab; 801, First receiver; 802, Second receiver; 803, Transmitter. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Embodiment 1: As Figures 1 to 6 shown, an intelligent hoisting mechanism in a shaft and its application method disclosed in the present invention are used to transport goods in a narrow pipe well, and include a rectangular frame 100, an upper telescopic device 200, a lower telescopic device 300, a hook 400, and a lifting device 500; Door bodies 101 are respectively arranged on the front and rear sides of the rectangular frame 100, and goods are placed into the rectangular frame 100 through the door bodies 101; Side opening doors 103 that can be opened are respectively arranged on the left and right sides of the rectangular frame 100, and are used to assist in transporting goods out of the rectangular frame 100 from the side.

[0030] There is a pair of upper telescopic devices 200 and a pair of lower telescopic devices 300, and their structures and movement directions are the same; A pair of upper telescopic devices 200 are symmetrically arranged on both sides of the rectangular frame 100 respectively, and are located above the side opening doors 103, and include an upper telescopic plate 201 and an upper hydraulic rod 202. The upper hydraulic rod 202 is connected to the control system. By controlling the extension of the upper hydraulic rod 202, the upper telescopic plate 201 is pushed to rotate and extend to open; The pair of upper telescopic plates 201 corresponding to the pair of upper telescopic devices 200 are each turned and extended in opposite directions to open. After opening, they are like wings, and their coverage area should be larger than the area of the pipe well. As Figure 9 shown, it is ensured that the distance from the edge projection line of the extended upper telescopic plate 201 or lower telescopic plate 301 in its vertical direction to the floor slab 700 is at least greater than 5 cm.

[0031] A pair of lower telescopic devices 300 are arranged below the side opening door 103, including a lower telescopic plate 301 and a lower hydraulic rod 302. The lower hydraulic rod 302 is connected to the control system. By controlling the extension of the lower hydraulic rod 302, the lower telescopic plate 301 is pushed to rotate and extend to open. The pair of lower telescopic plates 301 corresponding to the pair of lower telescopic devices 300 are each turned and extended in opposite directions to open. After opening, they are like wings, and their coverage area should also be greater than the area of the pipe well. At the same time, it is ensured that the projection line of the edge of the telescopic plate in the vertical direction is 5 cm outside the pipe well.

[0032] The control system can pre-calculate how many degrees the telescopic rod needs to extend according to the size of the pipe well and the size of the rectangular frame 100. At the same time, according to the lifting speed and the floor height, the speed of extension per hour can be calculated. For some hoisting with a large long side dimension of the pipe well and a small long side dimension of the frame, telescopic plates of different sizes can be replaced. (This technical content is prior art and can be realized by prior art, not the technical solution of this embodiment, so it will not be elaborated here.) By setting a beat controller to coordinately control the movements of the upper telescopic device 200 and the lower telescopic device 300, the upper telescopic plate 201 of the upper telescopic device 200 and the lower telescopic plate 301 of the lower telescopic device 300 are alternately extended and opened and contracted and closed during the lifting or lowering process. That is, when the upper telescopic plate 201 opens outward or contracts inward, the lower telescopic plate 301 has the opposite movement state but the same movement direction, so as to avoid obstacles in the shaft and prevent the telescopic device from interfering or colliding with the floor slab 700 or obstacles in the shaft.

[0033] The specific implementation method is as follows: The beat controller independently controls the drive units of the upper telescopic device 200 and the lower telescopic device 300 respectively, and sets predetermined action beat parameters, including the extension and opening time, the contraction and closing time, the movement amplitude, and the action sequence.

[0034] During the lifting or lowering process, the beat controller controls the upper telescopic plate 201 to first perform an elongation movement according to the environmental parameters in the shaft or the preset obstacle information, and at the same time controls the lower telescopic plate 301 to be in a contracted and closed state.

[0035] When the upper telescopic plate 201 extends to the preset position, the beat controller issues a switching instruction to control the lower telescopic plate 301 to start an elongation movement, while the upper telescopic plate 201 synchronously performs a contraction and closing action, realizing the coordinated movement of the two to alternately extend and open and contract and close.

[0036] The beat controller dynamically adjusts the action beats of the upper telescopic plate 201 and the lower telescopic plate 301 according to the real-time monitored position information, speed information, and external obstacle detection information, so as to ensure that the telescopic device can smoothly avoid when passing through the opening of the floor slab 700 or the obstacle position in the shaft and prevent collision or interference.

[0037] In special circumstances (such as detecting an abnormal obstacle, a weightless state or an emergency), the beat controller can immediately interrupt the current beat process, control the upper telescopic device 200 and the lower telescopic device 300 to simultaneously retract and close to a safe position, and start the safety protection process.

[0038] The eversion angle of the upper telescopic plate 201 and the lower telescopic plate 301 after the maximum rotation is 90°. When the control system detects that there is an abnormal situation, the control system controls the upper telescopic plate 201 and the lower telescopic plate 301 to be extended and opened at the same time, that is, after being extended and opened, they are perpendicular to the original movement path, so that when the rectangular frame 100 falls, the upper telescopic plate 201 and the lower telescopic plate 301 can be supported on the nearest floor 700 or obstacle structure in the shaft in time, play a blocking and limiting role, prevent the rectangular frame 100 from continuing to fall, thereby reducing safety hazards.

[0039] In addition, when the pipe shaft structure is limited and the door body 101 cannot be opened or transportation is required from the side door 103, the upper telescopic plate 201 or the lower telescopic plate 301 is connected to the floor 700 to form a transportation ramp, and the goods can be smoothly dragged out.

[0040] A plurality of hooks 400 are used and are evenly arranged on the top of the rectangular frame 100. A lifting mechanism arranged above the shaft connects the hooks 400 through steel wire ropes to lift the rectangular frame 100 into the narrow pipe shaft. A weightlessness monitoring module is provided on the hook 400, which is used to monitor in real time the force applied to the hook 400 during the lifting or lowering process. When it is detected that the force applied to the hook 400 is lower than a threshold value, it is determined that an abnormal situation exists, and the monitoring data is sent to the control system. The control system controls the upper telescopic plate 201 and the lower telescopic plate 301 to open, thereby setting up a safety hazard on the nearest floor slab 700 to prevent further falling.

[0041] The details are as follows: During the lifting process, the actual force (F) on the hook can be expressed as: F = G + m × a in: G is the weight of the load (G = m × g) m is the mass of the object being lifted g is the acceleration due to gravity (9.8 m / s²) a is the acceleration of the ascent or descent (can be positive or negative) Under normal working conditions: When the lifting speed is constant (uniform motion, a = 0): F = G = m × g When there is an acceleration change (acceleration or deceleration) during the lifting process, the force on the hook changes with the acceleration.

[0042] Abnormal state judgment: If the detected G by the load detection module exceeds the preset load threshold, it is judged as an overloaded state and protection is triggered.

[0043] If the detected F by the weightlessness monitoring module drops rapidly and is lower than a certain percentage (such as 20%) of the reference force value under normal working conditions, it is judged as a weightlessness or rapid falling state.

[0044] Threshold setting method: For example: F reference = m × g Weightlessness alarm trigger condition: F ≤ 0.8 × F reference or dynamically adjust the weightlessness trigger threshold according to historical operation data and empirical values.

[0045] Then the control system controls the upper telescopic device 200 and the lower telescopic device 300 to open and set them on the floor slab 700 to prevent potential safety hazards of continuous falling.

[0046] The lifting device 500 is arranged inside the rectangular frame 100 and includes a lifting platform 501, a lifting hydraulic rod 502, a folding frame 503, a guide plate 504, a longitudinal guide groove 505 and a folding frame guide block 506.

[0047] The lifting hydraulic rod 502 is connected to the folding frame 503 and is controlled by the control system to drive. By controlling the lifting hydraulic rod 502 to push the folding frame 503 to extend and open, the top of the folding frame 503 is connected to the lifting platform 501, so that the lifting platform 501 rises or falls inside the rectangular frame 100, thereby raising or lowering the transported goods.

[0048] The transported goods are adjusted by the lifting platform 501 to a plane flush with the side opening door 103, so that the transported goods can be smoothly removed from the rectangular frame 100 through the side opening door 103.

[0049] Two guide plates 504 are used and are respectively vertically arranged inside the rectangular frame 100 and on both sides of the lifting platform 501. Longitudinal guide grooves 505 are provided at the relative positions of the two guide plates 504. Both sides of the lifting platform 501 are slidably arranged in the longitudinal guide grooves 505 through guide blocks, thereby restricting the lifting range of the lifting platform 501.

[0050] Two groups of folding frame guide blocks 506 are used and are respectively arranged at the bottom inside the rectangular frame 100 and the bottom of the lifting platform 501 for restricting the sliding range of the folding frame 503.

[0051] Furthermore, in this embodiment, a hoisting stability structure is also provided on the door body 101, including rope guides 600 arranged on both sides of the door body 101. The rope guides 600 are two groups of through-hole components symmetrically arranged on both sides of the door body 101, and a steel wire hoisting rope used during hoisting passes through the through holes, thereby achieving the effect of stable transportation during hoisting.

[0052] Furthermore, in this embodiment, a top opening cover 102 that can be opened and closed is provided at the top of the rectangular frame 100. Through the top opening cover 102, the goods can be assisted to be transported out from the top of the rectangular frame 100, so as to meet more hoisting environments.

[0053] The specific process of top hoisting is as follows: Hoist to the fixed floor. The upper telescopic plate 201 expands and contacts the floor slab 700. The rectangular frame 100 is safely placed on the floor slab 700. The crane releases the hook 400 through the steel wire rope, and the crane is connected to the auxiliary hook 104 through the steel wire rope, and the top opening cover 102 is opened; At this time, since the rectangular frame 100 is safely placed on the floor slab 700 and does not require the force of the top crane, the crane further hoists out the goods carried in the rectangular frame 100.

[0054] After hoisting out, the goods are moved out of the pipe well by horizontal pulling or by entering a trailer with a platform area that can fully cover the pipe well into the pipe well, placing the goods on the trailer, and moving the goods out through the trailer.

[0055] (6) Install the top opening cover 102 in sequence, insert the pins at the top plate and the edge of the top frame, then connect the hook 400 to the steel wire rope of the crane, and then enter the descending mode.

[0056] Furthermore, in this embodiment, a weight sensor is provided at the bottom of the rectangular frame 100. The weight sensor is arranged at the bottom of the lifting platform 501 and is used to weigh the weight of the goods carried.

[0057] The weight sensor is electrically connected to the control system, and the weight sensor forms a logical relationship with the weight loss monitoring module. When the weight sensor weighs the weight of the transported goods, by setting the limit values of the lifting or descending acceleration, the weight loss monitoring module monitors the force on the hook 400 in real time to judge whether the hoisting state is normal or abnormal; the weight loss monitoring module feeds back the data of the abnormal state to the control system, and the control system triggers a safety control instruction to control the upper telescopic plate 201 and the lower telescopic plate 301 to be able to support on the nearby floor slab or obstacle structure in the shaft in time, playing a role of blocking and limiting, preventing the rectangular frame 100 from continuing to fall, thereby effectively preventing the risk of falling and ensuring the operation safety.

[0058] It also includes a gravity limiter, a level monitoring module, an operating speed detection module, and a load sensing module; the gravity limiter, the level monitoring module, the operating speed detection module, and the load sensing module are all connected to the control end through signals to achieve emergency braking.

[0059] Furthermore, during the process of the lifting device driving the hoisting assembly to move up and down the pipe shaft, the control system triggers a warning voice reminder to play the voice message of "The pipe shaft is in transportation operation (it can be specified as lifting hoisting operation or lowering hoisting operation), do not approach the pipe shaft"; and before the hoisting operation starts, it detects and confirms that there is no other professional operation in the area involved in the pipe shaft to ensure hoisting safety.

[0060] Furthermore, a distance transmitter and a distance receiver are respectively provided at the bottom of the rectangular frame 100 and the bottom of the pipe shaft to obtain the running position of the rectangular frame 100 in the pipe shaft, that is, the distance transmitter at the bottom of the rectangular frame 100 continuously emits signals to the distance receiver at the bottom of the pipe shaft, and the distance receiver feeds back the signals to the control system. The control system can then judge and display the specific position of the current rectangular frame 100 in the pipe shaft on the output screen, and judge the real-time lifting or lowering acceleration by the unit time and the mutual induction distance, so as to judge whether the hoisting state of the rectangular frame 100 is normal. Subsequently, the lifting speed or lowering speed is adjusted according to the current hoisting speed.

[0061] As Figure 7 shown, the application method of an intelligent hoisting mechanism in a shaft provided in this embodiment includes the following steps: Step S0: Before the hoisting operation, start the control system of the intelligent hoisting mechanism to complete the following initialization work: Confirm that the rectangular frame is installed in the shaft and the guiding and limiting structures are complete; Confirm that the lifting platform is in the initial position, and the telescopic device and the hook of the hanging device are in a workable state; Start the weight sensor and the weightlessness monitoring module to perform sensor calibration to ensure accurate monitoring data; Step S1: Open the door body 101 or the side opening door 103, place the goods to be transported on the lifting platform 501, and detect whether the transported goods meet the transportation weight through the weight sensor; Step S2: Adjust the lifting hydraulic rod 502 through the control system to drive the folding frame 503 to expand and open, so that the lifting platform 501 descends, and the goods are embedded in the rectangular frame 100 to achieve stable transportation; Step S3: The hoisting mechanism arranged above the shaft connects the hook 400 through the steel wire suspension rope to hoist the rectangular frame 100 into the narrow pipe shaft and carry out lifting transportation from the narrow pipe shaft; During the lifting and hoisting process, the movement of the upper telescopic plate 201 and the lower telescopic plate 301 is coordinated and controlled by setting a beat controller, so that the upper telescopic plate 201 and the lower telescopic plate 301 are alternately extended and opened and retracted and closed during the lifting process, thereby avoiding obstacles in the shaft and preventing the telescopic device from interfering with or colliding with the floor slab 700 or obstacles in the shaft; At the same time, the weightlessness monitoring module obtains the value of the force on the hook 400 in real time, and continuously transmits the data to the control system; the control system dynamically judges and analyzes the value of the force, and when it detects that the force on the hook 400 is less than the preset safety threshold, it determines that there is an abnormality in the current hoisting state, which includes but is not limited to the falling of the hanging object, the breaking of the wire rope, or the imminent falling of the cargo; When it is determined to be an abnormal situation, the control system immediately issues a control command to control the upper telescopic plate 201 and the lower telescopic plate 301 to be supported on the nearest floor 700 or obstacle structure in the shaft in time, so as to play a blocking and limiting role, prevent the rectangular frame 100 from continuing to fall, thereby effectively preventing the risk of falling, blocking the hook or the lifting platform from continuing to fall, and preventing the rectangular frame 100 from falling freely, thereby ensuring the safety of the operation; Furthermore, when the rectangular frame suddenly loses weight or falls during the lifting process, the weight of the rectangular frame 100 detected by the weight sensor changes abnormally, and the weight sensor feeds back the data of the abnormal change to the control system. The control system links the weight loss monitoring module to make a judgment based on the weight change. The control system triggers a safety control instruction to control the upper telescopic plate 201 and the lower telescopic plate 301 to be supported on the nearest floor 700 or obstacle structure in the shaft in time, so as to play a blocking and limiting role, and prevent the rectangular frame 100 from continuing to fall, thereby effectively preventing the risk of falling and ensuring operation safety. Step S4: In addition, by passing the steel wire rope through the rope guide 600 outside the rectangular frame 100, additional support can be provided to prevent the rectangular frame 100 from shaking in the horizontal range during the lifting process; Step S5: After hoisting to the target position, open the side door 103, control the lifting hydraulic rod 502 to push the folding frame 503 to extend, and raise the height of the lifting platform 501, so that the bottom surface of the cargo on the lifting platform is flush with the bottom surface of the side door 103; Step S6: Adjust the lower hydraulic rod 302 to make the lower telescopic plate 301 contact the plane of the floor slab 700. At this time, the lower telescopic plate forms a slope. Guide the cargo to move by the traction rope, and use the slope formed by the lower telescopic plate 301 to smoothly drag the cargo out of the rectangular frame 100. Step S7: Similarly, when it is necessary to lower the telescopic plate 201 and the lower telescopic plate 301 for lifting and transportation, the upper telescopic plate 201 and the lower telescopic plate 301 are also coordinated and controlled by setting a rhythm controller, so that the upper telescopic plate 201 and the lower telescopic plate 301 are alternately extended and opened and retracted and closed during the descent process, thereby avoiding obstacles in the shaft and preventing the telescopic device from interfering with or colliding with the floor 700 or obstacles in the shaft.

[0062] Also, during the hoisting process, the force value of the hook 400 is monitored by the weight loss monitoring module, and the weight of the rectangular frame 100 is detected by the weight detection sensor. When the weight loss monitoring module or the weight detection sensor detects that the force exerted on the hook 400 is less than the preset safety threshold or the weight of the rectangular frame 100 suddenly drops, the weight loss monitoring module or the weight detection sensor or both of them work together to quickly feed back the collected force value or weight data to the control system. The control system controls the upper telescopic plate 201 and the lower telescopic plate 301 to rotate outward and open, so that they can be erected on the nearest two side floor slabs 700 in the shaft when falling, and will not continue to fall, thereby avoiding the safety hazard of hoisting.

[0063] Embodiment 2: Based on Embodiment 1, Embodiment 2 is based on the inconsistency or deviation in the height of the floor slabs 700 on different floors. If a rhythm controller is used alone for unified time control, the opening and closing rhythm of the upper telescopic plate 201 and the lower telescopic plate 301 may fail, posing a safety risk.

[0064] Therefore, if Figure 8 As shown, a transmitter 803 of a position sensor is arranged on one side of each floor slab 700, and a pair of first receivers 801 and a pair of second receivers 802 of the position sensor are symmetrically arranged on both sides of the rectangular frame 100, respectively. The pair of first receivers 801 are located above the upper telescopic plate 201, and the pair of second receivers 802 are located between the upper telescopic plate 201 and the lower telescopic plate 301, and it is preset that the upper telescopic plate 201 will not touch the floor slab 700 during the telescopic movement after receiving the signals from the first receiver 801 and the second receiver 802.

[0065] The first receiver 801 and the second receiver 802 respectively cooperate with the transmitter 803 to receive signals and feed them back to the control system, thereby controlling the upper telescopic plate 201 to extend and open or retract and close.

[0066] Meanwhile, in the control system, it is set that the states of the upper telescopic plate 201 and the lower telescopic plate 301 for contraction and closing and extension and opening alternate with each other. That is, in the preset program, when the upper telescopic plate 201 receives the signal emitted by the transmitter 803 to the first receiver 801 or the second receiver 802, it feeds back to the control system. The control system controls the upper telescopic plate 201 to respectively make the states of extension and opening or contraction and closing, and immediately controls the lower telescopic plate 301 to be in the opposite state to the upper telescopic plate 201, so that the upper telescopic plate 201 and the lower telescopic plate 301 open alternately to ensure that there is always one of the telescopic plates in the state of extension and opening.

[0067] The specific steps are as follows: As Figure 8 shown is the simple front view of the rectangular frame 100, which is applied to the Figure 10 and Figure 11 demonstration. In the initial state, the upper telescopic plate 201 is default in the state of extension and opening.

[0068] In the transportation state of lifting and hoisting, it is set that when the first receiver 801 receives the signal of the transmitter 803, after receiving the feedback signal, the control system controls the upper telescopic plate 201 to extend and open; when the second receiver 802 receives the transmitter 803, after receiving the feedback signal, the control system controls the upper telescopic plate 201 to contract and close.

[0069] As Figure 10 shown, the lifting and hoisting is from bottom to top as indicated by the arrow, representing the state of the lifting and hoisting demonstration. Among them, the process steps of the lifting and hoisting should also follow the order from bottom to top in the Figure 10 . When the rectangular frame 100 is in the process of lifting and hoisting transportation, by default, the initial state of the upper telescopic plate 201 is extension and opening, and the lower telescopic plate 301 is contraction and closing.

[0070] First, the transmitter 803 on the floor slab 700 will trigger the first receivers 801 on both sides of the rectangular frame 100 above the upper telescopic plate 201. When the first receivers 801 receive the induction signal of the transmitter 803 on the floor slab 700, the control system controls the upper telescopic plate 201 to contract and close, and ensures that it will not touch the floor slab 700.

[0071] When the control system detects that the upper telescopic plate 201 is in the state of contraction and closing, it controls the lower telescopic plate 301 to extend and open. Continue to lift and hoist the rectangular frame 100. The first receivers 801 on both sides of the rectangular frame 100 leave the transmitter 803 on the floor slab 700, and the states of the upper telescopic plate 201 and the lower telescopic plate 301 are maintained until the transmitter 803 on the floor slab 700 triggers the second receivers 802 on both sides of the rectangular frame 100. When the second receivers 802 receive the induction signal of the transmitter 803 on the floor slab 700, the control system controls the upper telescopic plate 201 to extend and open, and controls the lower telescopic plate 301 to contract and close.

[0072] Thus, during the lifting process, the alternate opening and closing control of the upper telescopic plate 201 and the lower telescopic plate 301 is realized, ensuring that at least one telescopic plate is in the extended and open state at any time to guarantee the safety of the vertical transportation process.

[0073] As Figure 11 shown, the descending lifting is from top to bottom as indicated by the arrow, representing the state of the descending lifting demonstration. The process steps of the descending lifting should also follow the order from top to bottom in Figure 11 . When the rectangular frame 100 is in the process of descending lifting transportation, the default initial state of the upper telescopic plate 201 is extended and open, and the lower telescopic plate 301 is retracted and closed.

[0074] First, the transmitter 803 on the floor slab 700 will trigger the second receiver 802. When the second receiver 802 receives the induction signal from the transmitter 803 on the floor slab 700, the control system controls the upper telescopic plate 201 to retract and close, and ensures that it will not contact the floor slab 700.

[0075] When the control system detects that the upper telescopic plate 201 is in the retracted and closed state, it controls the lower telescopic plate 301 to extend and open. Continue to lower the rectangular frame 100. The second receivers 802 on both sides of the rectangular frame 100 leave the transmitter 803 on the floor slab 700, and the states of the upper telescopic plate 201 and the lower telescopic plate 301 are maintained until the transmitter 803 on the floor slab 700 triggers the first receivers 801 on both sides of the rectangular frame 100. When the first receivers 801 receive the induction signal from the transmitter 803 on the floor slab 700, the control system controls the upper telescopic plate 201 to extend and open, and controls the lower telescopic plate 301 to retract and close.

[0076] Thus, during the descending lifting process, the alternate opening and closing control of the upper telescopic plate 201 and the lower telescopic plate 301 is realized, ensuring that at least one telescopic plate is in the extended and open state at any time to guarantee the safety of the vertical transportation process.

[0077] The intelligent lifting mechanism in the shaft of this embodiment realizes high safety and stability during the lifting process through the precise control of the weightlessness monitoring module, the telescopic device, and the lifting platform. Its functions of automatically adjusting the lifting direction and preventing further falling, combined with the precise control of the platform height by the hydraulic system, greatly improve the efficiency and precision of the operation. In addition, the design of the rope guide and the lifting platform enhances the stability and ensures the safe transportation of goods in the narrow pipe well. This device has versatility and flexibility, can meet different lifting requirements, and solves the safety hazards and operation problems in the lifting operation.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0080] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An intelligent hoisting mechanism in a shaft, which is used to carry goods in a narrow pipe well, and is characterized in that, It includes a rectangular frame (100), a telescopic device, and a lifting hook (400); Doors (101) are respectively provided on the front and rear sides of the rectangular frame (100), and goods are placed into the rectangular frame (100) through the doors (101); The telescopic device is arranged on the left and right sides of the rectangular frame (100). When a sudden drop occurs during the hoisting process, it is erected on the floor through the telescopic device; Multiple lifting hooks (400) are evenly arranged on the top of the rectangular frame (100). A hoisting mechanism above the shaft connects the lifting hooks (400) through wire suspension ropes to hoist the rectangular frame (100) into a narrow pipe well; Among them, a weightlessness monitoring module is provided on the lifting hook (400). The weightlessness monitoring module is used to monitor the force received by the lifting hook (400) during the lifting or lowering process in real time. When it is detected that the force received by the lifting hook (400) is lower than the threshold value, it is determined that an abnormal situation exists, and the monitoring data is sent to the control system. The control system controls the telescopic device to open and be erected on the floor to prevent further dropping.

2. The intelligent hoisting mechanism in a shaft according to claim 1, and is characterized in that, Openable side doors (103) are respectively provided on the left and right sides of the rectangular frame (100) for assisting in transporting goods out of the rectangular frame (100) from the side.

3. The intelligent hoisting mechanism in a shaft according to claim 2, and is characterized in that, The telescopic device includes a pair of upper telescopic devices (200) and a pair of lower telescopic devices (300) with the same structure; A pair of the upper telescopic devices (200) are respectively symmetrically arranged on both sides of the rectangular frame (100) and are located above the side doors (103), including an upper telescopic plate (201) and an upper hydraulic rod (202). The upper hydraulic rod (202) is connected to the control system. By controlling the extension of the upper hydraulic rod (202), the upper telescopic plate (201) is pushed to rotate and extend to open or contract and close; A pair of the lower telescopic devices (300) are respectively symmetrically arranged on both sides of the rectangular frame (100) and are located below the side doors (103), including a lower telescopic plate (301) and a lower hydraulic rod (302). The lower hydraulic rod (302) is connected to the control system. By controlling the extension of the lower hydraulic rod (302), the lower telescopic plate (301) is pushed to rotate and extend to open or contract and close; The covering area after the upper telescopic plate (201) and the lower telescopic plate (301) are extended and opened is larger than the area of the pipe well, and at the same time, it is ensured that the distance from the edge projection line of the extended upper telescopic plate (201) or lower telescopic plate (301) in its vertical direction to the floor is at least greater than 5 cm; By setting a beat controller to coordinately control the movements of the upper telescopic device (200) and the lower telescopic device (300), the upper telescopic device (200) and the lower telescopic device (300) alternately extend and open and contract and close during the lifting or lowering process to avoid obstacles in the shaft; The maximum outward turning angle after the upper telescopic plate (201) and the lower telescopic plate (301) are rotated is 90°. When the control system detects an abnormal situation, the control system controls the upper telescopic plate (201) and the lower telescopic plate (301) to extend and open simultaneously, that is, after extending and opening, they are perpendicular to the original movement path. When the rectangular frame (100) is falling, the upper telescopic plate (201) and the lower telescopic plate (301) can be timely supported on the nearby floor or obstacle structure in the shaft, playing a role of blocking and limiting, and preventing the rectangular frame (100) from continuing to fall; In addition, when the pipe well structure is limited and the door body (101) cannot be opened or transportation is required through the side door (103), the upper telescopic plate (201) or the lower telescopic plate (301) is connected to the floor, so that the upper telescopic plate (201) or the lower telescopic plate (301) forms a transportation ramp for facilitating the dragging out of goods.

4. The intelligent hoisting mechanism in a shaft according to claim 3, and is characterized in that, It further includes a lifting device (500), and the lifting device (500) is arranged inside the rectangular frame (100), and includes a lifting platform (501), a lifting hydraulic rod (502) and a folding frame (503); The lifting hydraulic rod (502) is connected to the folding frame (503) and is controlled and driven by the control system. By controlling the lifting hydraulic rod (502) to push the folding frame (503) to extend and open, the top of the folding frame (503) is connected to the lifting platform (501), so that the lifting platform (501) rises or falls inside the rectangular frame (100), thereby raising or lowering the transported goods; The transported goods are adjusted to a plane flush with the side door (103) through the lifting platform (501), so that the transported goods can be smoothly removed from the rectangular frame (100) through the side door (103).

5. The intelligent hoisting mechanism in a shaft according to claim 4, and is characterized in that, The lifting device (500) further includes a guide plate (504) and a longitudinal guide groove (505); Two guide plates (504) are used, which are respectively vertically arranged inside the rectangular frame (100) and are located on both sides of the lifting platform (501). Longitudinal guide grooves (505) are provided at the opposite positions of the two guide plates (504), and both sides of the lifting platform (501) are slidably arranged in the longitudinal guide grooves (505) through guide blocks, thereby limiting the lifting range of the lifting platform (501).

6. The intelligent hoisting mechanism in a shaft according to claim 4, and is characterized in that, The lifting device (500) further includes folding frame guide blocks (506); Two groups of folding frame guide blocks (506) are used, which are respectively arranged at the bottom inside the rectangular frame (100) and the bottom of the lifting platform (501) for limiting the sliding range of the folding frame (503).

7. The intelligent hoisting mechanism in a shaft according to claim 4, and is characterized in that, It further includes a weight sensor, and the weight sensor is arranged at the bottom of the lifting platform (501) for weighing the weight of the transported goods; The weight sensor and the weight loss monitoring module form a logical relationship. When the weight sensor measures the weight of the transported goods, by setting the acceleration limit for lifting or lowering, the weight loss monitoring module monitors the force on the lifting hook (400) in real time to determine whether the lifting state is normal or abnormal; the weight loss monitoring module feeds back the data of the abnormal state to the control system, and the control system triggers a safety control instruction to control the upper telescopic plate (201) and the lower telescopic plate (301) to be able to support on the nearest floor or obstacle structure in the shaft in time, playing a role of blocking and limiting to prevent the rectangular frame (100) from falling further.

8. The intelligent hoisting mechanism in a shaft according to claim 1, and is characterized in that, It further includes a lifting stability structure, and the lifting stability structure includes rope guides (600) arranged on both sides of the door body (101). The rope guides (600) are two groups of through-hole components symmetrically arranged on both sides of the door body (101), and the steel wire suspension ropes used in the lifting process penetrate through the through-holes to prevent shaking within the horizontal range during the lifting process.

9. The intelligent hoisting mechanism in a shaft according to claim 1, and is characterized in that, The top of the rectangular frame (100) is provided with an openable top cover (102) for assisting in transporting the goods out from the upper part.

10. An application method of the intelligent hoisting mechanism in a shaft according to any one of claims 1-9, and is characterized in that, It includes the following steps: Step S0: Before the lifting operation, start the control system of the intelligent lifting mechanism to complete the following initialization work: Confirm that the rectangular frame is installed in the shaft and all structures are intact; Confirm that the lifting platform is in the initial position; Start the weight sensor and the weight loss monitoring module to perform sensor calibration; Step S1: Open the door body (101) or the side door (103), place the goods to be transported on the lifting platform (501), and detect whether the transported goods are overweight through the weight sensor at the bottom of the lifting platform (501); And during the lifting process, the weight sensor and the weight loss monitoring module form a logical relationship. Through the acceleration limit and the weight of the goods, the weight loss monitoring module monitors the force on the lifting hook (400) in real time to determine whether the lifting state is normal or abnormal; Step S2: Adjust the lifting hydraulic rod (502) through the control system to drive the folding frame (503) to extend and open, so that the lifting platform (501) descends, and the goods are embedded in the rectangular frame (100) to achieve stable transportation; Step S3: The hoisting mechanism arranged above the shaft connects the lifting hook (400) through a steel wire suspension rope to hoist the rectangular frame (100) into the narrow pipe well and perform lifting transportation from the narrow pipe well; During the lifting process, by setting a beat controller to control the upper and lower telescopic plates to alternately extend and open and contract and close to avoid obstacles in the shaft; Obtain the numerical value of the force on the lifting hook (400) in real time through the weight loss monitoring module, and the control system makes a dynamic judgment and analysis on the numerical value of the force to determine that there is an abnormal situation in the current lifting state; When it is detected that the force on the lifting hook (400) is greater than the safety threshold, a warning sound is used to indicate that the lifting acceleration is too fast, and it is determined as an abnormal situation. The control system immediately issues a control instruction to control the upper telescopic plate (201) and the lower telescopic plate (301) to be able to be promptly supported on the nearby floor or obstacle structure in the shaft, playing a role of blocking and limiting, preventing the rectangular frame (100) from continuing to fall, thereby effectively preventing the risk of falling and ensuring the safety of the operation; Step S4: By passing the steel wire suspension rope through the rope guide (600) outside the rectangular frame (100), additional support can be provided to avoid the rectangular frame (100) from swaying within the horizontal range during the lifting process; Step S5: After lifting to the target position, open the side door (103), and control the lifting hydraulic rod (502) to push the folding frame (503) to extend, raising the height of the lifting platform (501) so that the bottom surface of the transported goods on the lifting platform is flush with the bottom surface of the side door (103); Step S6: Adjust the lower hydraulic rod (302) so that the lower telescopic plate (301) is in contact with the plane of the floor. At this time, the slope formed by the lower telescopic plate (301); guide the transported goods to move through the towing rope, and utilize the slope formed by the lower telescopic plate (301) to smoothly drag the goods out of the rectangular frame (100); Step S7: Similarly, when it is necessary to lower the lifting and transportation, the upper and lower telescopic plates are also alternately extended and opened and contracted and closed during the descent process by setting a beat controller to prevent the telescopic device from interfering with or colliding with the floor or obstacles in the shaft; And during the lifting process, the force value of the lifting hook (400) is also monitored by the weightlessness monitoring module. When either the weightlessness monitoring module or the weight detection sensor detects that the force on the lifting hook (400) is less than the preset safety threshold or the weight of the rectangular frame (100) suddenly drops sharply, the control system controls to push the upper telescopic plate (201) and the lower telescopic plate (301) to rotate and open outward, so that they can be supported on the nearby two floors on both sides in the shaft during the fall to avoid continuous falling.

Images