A retractable platform and vertical transportation system for a shaft sinking machine

Abstract

This invention relates to the field of mining and tunnel engineering construction equipment, and provides an openable and closable hoisting platform and vertical transportation system for shaft boring machines. The system includes a hoist, a cage, a hoisting platform, and fixed guide rails installed on the shaft wall. The cage moves up and down along the fixed guide rails under the traction of the hoist. The hoisting platform is installed in at least one layer in the shaft. The hoisting platform includes a platform body with a passageway for the cage to pass through. The invention is characterized by an integrated passageway opening and closing device on the platform body. This device automatically opens the passageway when the cage approaches and needs to pass through the current layer of the hoisting platform, and automatically closes it after the cage has completely passed through. This invention addresses the problems of low efficiency and insufficient safety in traditional bucket transportation methods by optimizing the integrated coordination of the hoisting platform structure and the cage system, aiming to simultaneously improve the efficiency of material and personnel transportation and operational safety in shaft construction.

Description

Technical Field

[0001] This invention relates to the field of mining and tunnel engineering construction equipment, specifically an openable and closable hoisting platform and vertical transportation system for shaft boring machines. Background Technology

[0002] In shaft excavation, the vertical transportation system plays a crucial role in the efficient and safe transfer of materials, equipment, and personnel between different working levels and the ground. Currently, traditional shaft excavators generally use buckets as the core transport container, but this method has the following main problems: 1. Poor personnel comfort and working environment: The buckets are mostly open structures, which makes the personnel uncomfortable during the ride and they are easily affected by the splashing of rebound material, which is difficult to clean; when encountering areas with developed groundwater, water can easily splash into the bucket, causing personnel's clothes to get wet, which affects the working experience and work efficiency. 2. Low and limited material loading efficiency: It is inconvenient to load materials such as anchor rods and cement bags into the bucket due to the small space; due to the size limitation of the bucket, the length of materials such as anchor rods should not be too long, otherwise they will be difficult to load or easily damaged by collision during transportation, resulting in material loss and significantly reducing transportation efficiency. 3. Insufficient safety redundancy: The hoisting bucket usually relies on only a single lifting wire rope with two stabilizing ropes for lifting and operation. It lacks an emergency braking mechanism and secondary protection measures in extreme working conditions such as rope breakage. The safety protection measures are relatively weak, and there are significant safety hazards. 4. Significant impact on the structure and function of the suspended platform: The bucket needs to pass through each layer of the suspended platform, which requires the opening of a large through hole in the platform. This through hole is usually open, which not only creates a safety hazard for high-altitude operations, but also undermines the integrity and sealing of the suspended platform as a working platform, limiting its performance in other functions such as support and equipment installation.

[0003] To address the aforementioned issues, some projects have attempted to introduce cage systems similar to those used in mine shaft hoisting. Cages offer advantages such as high transport capacity and overall safety. However, directly applying them to the hoisting system of a tunneling machine presents a structural and functional contradiction: cage operation relies on a continuous, unobstructed vertical passage, while the hoisting platform (including the sealing plate) must maintain the closure of the opening as much as possible to ensure the integrity of the working face and operational safety. Therefore, given the current situation, there is an urgent need to provide an openable and closable hoisting platform and vertical transport system for shaft boring machines to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide an openable and closable lifting platform and vertical transportation system for a shaft boring machine, in order to solve the problems mentioned in the background art.

[0005] The present invention is implemented as follows: a vertical transportation system for a shaft boring machine includes a hoist, a cage, a platform, and fixed guide rails installed on the shaft wall. The cage moves up and down along the fixed guide rails under the traction of the hoist. The platform is installed in at least one layer within the shaft. The platform includes a platform body with a passage opening for the cage to pass through. The invention is characterized in that the platform body integrates a passage opening and closing device. The opening and closing device automatically opens the passage opening when the cage approaches and needs to pass through the current layer of the platform, and automatically closes it after the cage has completely passed through.

[0006] As a further aspect of the present invention: the channel opening and closing device includes a movable cover plate, a drive actuator, and an intelligent control system; The movable cover is used to close the passageway during non-traffic periods; The drive actuator provides power to the movable cover plate, driving it to move along a preset path; The intelligent control system is connected to the central control system of the shaft hoist, and obtains the position and operating status information of the cage in real time. It automatically issues commands to control and drive the actuator according to preset logic. The intelligent control system also includes: a data interaction module, a trajectory analysis module, and a collaborative control module; The data interaction module reads the cage shaft depth coordinate data and instantaneous velocity vector data from the central control system of the shaft hoist based on the fieldbus protocol, calls the cyclic redundancy check algorithm to verify the cage shaft depth coordinate data and the instantaneous velocity vector data, and encapsulates and generates a real-time operating status data stream. The trajectory analysis module calls the Kalman filter model to perform difference calculation on the real-time operating status data stream and the fixed layer depth parameters of the hoisting platform, predicts the passage time window when the cage arrives at the passage entrance, and generates an execution action instruction set including the opening and closing times based on preset safety logic; The collaborative control module parses the set of execution action instructions and converts them into pulse control signals adapted to drive the actuator. Before the cage reaches the passage opening, it controls the left and right movable covers to slide outward synchronously along the guide rail and open. After the cage passes through the passage opening, it controls the left and right movable covers to slide in opposite directions and close.

[0007] As a further embodiment of the present invention: the movable cover plate is a left movable cover plate and a right movable cover plate that open in opposite directions. The left movable cover plate and the right movable cover plate are fan-shaped plates or rectangular plates. The bottom of the hanging plate is provided with load-bearing rollers. The left movable cover plate and the right movable cover plate are slidably installed on the guide rail on the hanging plate body.

[0008] As a further aspect of the present invention: the drive actuators are arranged symmetrically, and the drive actuators are hydraulic cylinders, electric push rods, or servo motor-driven gear and rack mechanisms.

[0009] As a further aspect of the present invention: the mating edges of the left and right movable cover plates are fitted with elastic sealing strips.

[0010] As a further aspect of the present invention: the cage is a single-layer structure, and the top and bottom of the cage are conical structures.

[0011] As a further aspect of the present invention, the cage is equipped with lighting and ventilation facilities.

[0012] As a further aspect of the present invention, video monitoring and communication equipment is installed inside the cage.

[0013] As a further aspect of the present invention, the cage is equipped with a material fixing device.

[0014] The present invention also provides an openable and closable hoisting platform for a shaft boring machine, wherein the hoisting platform is used in the system described above, and the platform body has a channel opening and an integrated channel opening and closing device.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Significantly improved passenger comfort: The cage adopts a closed compartment structure, which can effectively isolate external rainwater and seepage water from the well wall from splashing in, avoiding contamination of the internal environment by rebound material. At the same time, the closed structure provides passengers with a better sense of psychological security, overcoming the tension and discomfort caused by direct exposure to the well wall environment in traditional bucket operations in deep wells.

[0016] 2. Revolutionary improvement in transportation efficiency: The use of cages instead of traditional buckets has significantly shortened the loading and unloading time of materials (especially long anchor bolts and equipment parts), greatly improving the overall operational efficiency of shaft excavation and eliminating transportation as a key factor restricting the speed of excavation.

[0017] 3. Significantly enhanced inherent system safety: The cage itself possesses higher safety design standards (such as redundant braking systems and fall arrestors), resulting in a more stable and reliable structure. Most importantly, the platform access can be closed with a movable cover when not in use, completely eliminating the fall risk associated with the perpetually open access holes in previous bucket systems, greatly ensuring the safety of personnel working on the platform.

[0018] 4. Functional integration and integrity of the work platform: After the channel is closed, the hanging platform is restored to a complete and continuous working plane, which can be used for equipment layout, temporary storage or as an auxiliary function such as stabilizing the platform and sealing the water tray, realizing the intelligent switching and organic combination of "dynamic transportation channel" and "static work platform".

[0019] 5. Enhanced automation and intelligence: The channel opening and closing mechanism can be linked with the cage operation system to achieve automatic control, reduce manual intervention, improve the continuity and safety of operations, and conform to the development direction of intelligent construction in mines and underground engineering.

[0020] 6. Good compatibility and engineering scalability: This optimized solution can be adapted to existing hoisting and sealing plate systems, and is especially suitable for deep and large vertical shaft projects using large shaft boring machines, providing important equipment support for promoting unmanned and minimally manned construction modes. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention.

[0023] Figure 2 for Figure 1 A top view of a single-layer suspended platform (the passageway is closed).

[0024] Figure 3 for Figure 2 Top view of the middle hanging platform (the passageway is open).

[0025] In the attached diagram: 1-shaft wall, 2-cage, 3-fixed guide rail, 4-lifting platform, 5-channel opening, 6-left movable cover, 7-right movable cover, 8-hydraulic cylinder, 9-guide rail, 10-sealing strip. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] The present invention will be further explained below with reference to specific embodiments.

[0030] Please see Figures 1-3 (in, Figure 1 The display cage is suspended via a single layer of hanging platform. Figure 2 The central passage is closed. Figure 3 The present invention provides a vertical transportation system for a shaft boring machine, comprising a hoist, a cage 2, a platform, and a fixed guide rail 3 mounted on the shaft wall 1. The cage 2 moves up and down along the fixed guide rail 3 under the traction of the hoist. The platform is provided at least once in the shaft. The platform includes a platform body 4, on which a passage 5 for the cage 2 to pass is provided. The platform body 4 is characterized by integrating a channel opening and closing device. The opening and closing device automatically opens the channel 5 when the cage 2 approaches and needs to pass through the platform of this layer, and automatically closes it after the cage 2 has completely passed through, restoring the platform to a completely closed state.

[0031] In this embodiment, a multi-layered hanging platform is provided according to the depth of the shaft and functional requirements. The hanging platform includes a hanging platform body 4, which is usually suspended in the shaft by a high-strength steel wire rope or a rigid linkage system.

[0032] In a more specific example, the channel opening and closing device includes a movable cover plate, a drive actuator, and an intelligent control system; The movable cover is used to close the passageway 5 during non-traffic periods; The drive actuator provides power to the movable cover plate, driving it to move along a preset path; The intelligent control system is connected to the central control system of the shaft hoist, and obtains the position and running status information of cage 2 in real time. According to the preset logic, it automatically issues commands to control and drive the actuator to achieve precise linkage between the opening and closing of the channel and the operation of the cage. The intelligent control system also includes: a data interaction module, a trajectory analysis module, and a collaborative control module; The data interaction module reads the cage shaft depth coordinate data and instantaneous velocity vector data from the central control system of the shaft hoist based on the fieldbus protocol, calls the cyclic redundancy check algorithm to verify the cage shaft depth coordinate data and the instantaneous velocity vector data, and encapsulates and generates a real-time operating status data stream. The trajectory analysis module calls the Kalman filter model to perform difference calculation on the real-time operating status data stream and the fixed layer depth parameters of the hoisting platform, predicts the passage time window when the cage arrives at the passage entrance, and generates an execution action instruction set including the opening and closing times based on preset safety logic; The collaborative control module parses the set of execution action instructions and converts them into pulse control signals adapted to drive the actuator. Before the cage reaches the passage opening, it controls the left and right movable covers to slide outward synchronously along the guide rail and open. After the cage passes through the passage opening, it controls the left and right movable covers to slide in opposite directions and close. The data interaction module reads the shaft depth coordinate data and instantaneous velocity vector data of the cage hoist central control system based on the fieldbus protocol, establishes an industrial Ethernet communication link and configures the master-slave communication baud rate to 9600bps. During the communication handshake phase, it sends a hexadecimal start frame command to activate the data transmission channel. According to the preset 50-millisecond sampling period, it cyclically scans the register address segment and sequentially extracts the shaft depth coordinate values ​​encoded by 32-bit floating-point numbers and the instantaneous velocity vector values ​​encoded by 16-bit signed integers from the storage space with address offsets from 0x0040 to 0x0048.

[0033] The depth coordinates represent the vertical distance between the cage and the wellhead, with a value range of 0 to 1200 meters. The velocity vector represents the current lifting rate of the cage, with a value range of 0 to 12 meters per second. The extracted raw binary data stream is parsed and mapped according to the protocol structure shown in Table 1. A cyclic redundancy check algorithm is called to load a preset polynomial generation factor of 0x1021. A modulo-2 division operation is performed on the parsed data packet to obtain a 16-bit check remainder. This check remainder is compared bit by bit with the checksum at the end of the data packet. If they match, the data transmission is considered complete and error-free. Subsequently, the timestamp information in the data packet is extracted and synchronized with the current system clock. The corrected depth coordinate value of 450.5 meters and the velocity vector value of 5.0 meters per second are rearranged in chronological order and combined with a device status flag to construct a standardized data frame format. This data is then encapsulated to generate a real-time operating status data stream.

[0034] Table 1. Communication Data Frame Structure Definition Table

[0035] The trajectory analysis module calls the Kalman filter model to perform difference calculations on the real-time operating status data stream and the fixed layer depth parameters of the hoisting platform. It initializes the state estimation covariance matrix P and sets the diagonal element value of the process noise covariance matrix Q to 0.001 to match the weak disturbance characteristics of the shaft environment. It sets the element value of the observation noise covariance matrix R to 0.1 to correspond to the sensor's 0.5% measurement error range. Using the state estimate value from the previous moment combined with the system state transition matrix, it predicts the prior state at the current moment. It uses the received depth coordinate value of 450.5 meters as the observation input value to calculate the Kalman gain coefficient. Based on this gain coefficient, it corrects the prior state to obtain the optimal position estimate. It reads the current fixed layer depth parameter of 600.0 meters stored in the configuration file and performs an absolute value subtraction operation to obtain the result. The vertical distance between the cage and the hoisting platform is 149.5 meters. Combining this with the current downward speed of 5.0 meters per second, a vector division operation is performed to obtain an estimated arrival time of 29.9 seconds. A preset safety buffer time threshold is introduced, which is set to 5.0 seconds based on the hydraulic system response delay test data. Subtracting the safety buffer time from the estimated arrival time yields an action trigger countdown of 24.9 seconds. Based on this countdown result, the opening trigger point is marked on the timeline. At the same time, the required passage time of 3.0 seconds is calculated by combining the cage length parameter of 15.0 meters and the running speed. This passage time and a redundant closing delay of 2.0 seconds are superimposed after the opening trigger point to mark the closing trigger point. Based on these two time markers, an instruction sequence containing action type encoding and precise millisecond-level execution timestamps is constructed to generate an execution action instruction set including the opening and closing times.

[0036] The collaborative control module parses the execution action instruction set and converts it into pulse control signals adapted to drive the actuator. It parses the start timestamp and action type code in the instruction set, and calls the pulse width modulation unit of the programmable logic controller to generate a drive pulse waveform with a frequency of 1000 Hz. This frequency is matched and set according to the stepper motor speed characteristic curve to output constant torque. The duty cycle of the pulse signal is set to 85% to drive the hydraulic pump station solenoid valve to open, controlling the fluid medium to push the hydraulic cylinder piston rod out with a pressure of 15 MPa. This drives the left and right movable cover plates connected to the end of the piston rod to slide outward synchronously against the static friction of the guide rail. Displacement is collected in real time during the sliding process. The sensor's feedback voltage value is used to immediately stop pulse output and maintain hydraulic pressure when it reaches the 4.8 volt limit threshold corresponding to the fully open position. While waiting for the cage to pass, the signal status of the wellbore light curtain sensor is continuously monitored. When the light curtain signal changes from an obstructed state to a conducting state and remains stable for more than 1.5 seconds, it is determined that the cage has completely left the passage opening area. Then, the pulse signal phase is switched to drive the hydraulic cylinder to retract in the opposite direction, controlling the left and right movable covers to slide smoothly back to their initial positions along the guide rail until the closing limit switch is triggered. After the cage passes through the passage opening, the left and right movable covers are controlled to slide in the opposite direction to close.

[0037] The movable cover consists of two opposing doors, a left movable cover 6 and a right movable cover 7. The left movable cover 6 and the right movable cover 7 are fan-shaped or rectangular plates, and their shapes match the passage opening 5. They are used to close the passage during non-passage periods. The bottom of the hanging platform is equipped with load-bearing rollers, which provide precise support and can slide smoothly on the linear guide rail 9 that is welded or bolted to the hanging platform body 4. The left movable cover 6 and the right movable cover 7 are slidably installed on the guide rail 9 on the hanging platform body 4. The drive actuators are symmetrically arranged to ensure synchronous and smooth opening and closing actions. The drive actuators are hydraulic cylinders 8, electric push rods, or servo motor-driven gear and rack mechanisms. Taking hydraulic cylinder 8 as an example, the cylinder body of hydraulic cylinder 8 is hinged to the fixed seat of the lifting plate 4 by a pin, and the end of its piston rod is hinged to the side reinforcement structure of the movable cover plate by a pin.

[0038] To ensure safety, sealing, and platform flatness during closure, the mating edges of the left movable cover plate 6 and the right movable cover plate 7 are fitted with elastic sealing strips 10. After complete closure, their upper surfaces are flush with the main working plane of the hoisting platform, and their structural strength is comparable to other areas of the hoisting platform, allowing them to safely support personnel and equipment.

[0039] In a more specific example, the cage 2 is a single-layer structure with a height of approximately 4m (adjustable according to actual needs). It adopts a box-like design, with the top and bottom potentially designed as conical structures to optimize airflow and prevent collisions. The cage 2 is equipped with lighting and ventilation systems. Furthermore, video monitoring and communication equipment can be installed inside the cage 2 to achieve visualization and remote scheduling of the transportation process. Material securing devices are also installed inside to effectively prevent material movement during transportation, improving transportation stability and safety.

[0040] This invention also provides an openable and closable hoisting platform for a shaft boring machine. The hoisting platform is used in the system described above. The platform body 4 has a channel opening 5 and an integrated channel opening and closing device.

[0041] In summary, the workflow of this invention is as follows: Safety shutdown state (normal state): such as Figure 2 As shown, when the cage 2 has not reached the working area of ​​the hoisting platform on this floor, the hydraulic cylinder 8 is in the extended state, pushing the two movable covers to close towards the center on the guide rail 9 until they completely cover and seal the passage opening 5. At this time, the sealing strips 10 on the edges of the covers are tightly pressed together to form an effective seal, preventing liquids or small objects from falling; and the upper surface of the movable covers is strictly flush with other working surfaces of the hoisting platform, forming a complete, continuous, and safe working platform.

[0042] Intelligent opening process: When the high-precision position sensor installed on the fixed guide rail 3 or well wall 1 detects that the cage 2 is about to reach the hoisting platform of this level (e.g., entering the preset trigger distance range), its signal is transmitted to the intelligent control system in real time. After making a logical judgment based on the cage speed, position, and preset safety margin, the intelligent control system issues an action command (such as retraction) to the hydraulic cylinder 8. Under the premise that the control system ensures synchronization, the two hydraulic cylinders 8 operate smoothly and quickly, pulling the two movable covers open to both sides along the track 9 until the passage opening 5 is fully open (reaching...). Figure 3 (as shown in the diagram), to provide an unobstructed vertical passage for cage 2.

[0043] Cage passage and status recovery: Under the control of the hoist, cage 2 passes through the open passageway 5 at a constant speed. After the cage has completely passed the platform of this level (i.e., its bottom has left the influence range of the passageway) and the position sensor confirms that it has left the preset "closing trigger zone", the intelligent control system issues a command again, and the hydraulic cylinder 8 moves in the opposite direction (e.g., extends), pushing the movable cover to close back towards the center. After confirming that the movable cover is fully closed and locked, the system returns to the safe closed platform state.

[0044] The guide rail 9 not only provides a precise sliding path, but also ensures the accuracy and repeatability of the opening and closing end position of the movable cover through the end-point detection of mechanical limit blocks or sensors at the ends.

[0045] The entire channel opening and closing control process can be fully automated and deeply integrated with the lifting system to ensure efficient, smooth, and inherently safe transportation operations. The intelligent control system also has status monitoring, fault diagnosis, and emergency stop functions, further improving system reliability.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical transport system for a shaft boring machine, comprising a hoist, a cage (2), a hoisting platform, and a fixed guide rail (3) mounted on the shaft wall (1), wherein the cage (2) moves up and down along the fixed guide rail (3) under the traction of the hoist, the hoisting platform is provided at least once in the shaft, the hoisting platform includes a hoisting platform body (4), and the hoisting platform body (4) has a passageway (5) for the cage (2) to pass through, characterized in that, The hanging platform (4) is equipped with a channel opening and closing device. The opening and closing device automatically opens the channel opening (5) when the cage (2) approaches and needs to pass through the hanging platform of this layer, and automatically closes after the cage (2) has completely passed through. The channel opening and closing device includes a movable cover plate, a drive actuator, and an intelligent control system; The movable cover is used to close the passage opening (5) during non-passage periods. The movable cover is a left movable cover (6) and a right movable cover (7) that open in opposite directions. The left movable cover (6) and the right movable cover (7) are fan-shaped or rectangular plates. The bottom of the hanging platform is equipped with load-bearing rollers. The left movable cover (6) and the right movable cover (7) are slidably installed on the guide rail (9) on the hanging platform body (4). The drive actuator provides power to the movable cover plate, driving it to move along a preset path; The intelligent control system is connected to the central control system of the vertical shaft hoist, and obtains the position and running status information of the cage (2) in real time. It automatically issues commands to control the action of the actuator according to the preset logic. The intelligent control system also includes: a data interaction module, a trajectory analysis module, and a collaborative control module; The data interaction module reads the cage shaft depth coordinate data and instantaneous velocity vector data from the central control system of the shaft hoist based on the fieldbus protocol, calls the cyclic redundancy check algorithm to verify the cage shaft depth coordinate data and the instantaneous velocity vector data, and encapsulates and generates a real-time operating status data stream. The trajectory analysis module calls the Kalman filter model to perform difference calculation on the real-time operating status data stream and the fixed layer depth parameters of the hoisting platform, predicts the passage time window when the cage arrives at the passage entrance, and generates an execution action instruction set including the opening and closing times based on preset safety logic; The collaborative control module parses the set of execution action instructions and converts them into pulse control signals adapted to drive the actuator. Before the cage reaches the passage opening, it controls the left and right movable covers to slide outward synchronously along the guide rail and open. After the cage passes through the passage opening, it controls the left and right movable covers to slide in opposite directions and close.

2. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The drive actuators are arranged symmetrically, and the drive actuators are hydraulic cylinders (8), electric push rods, or servo motor-driven gear rack mechanisms.

3. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The mating edges of the left movable cover plate (6) and the right movable cover plate (7) are fitted with elastic sealing strips (10).

4. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The cage (2) is a single-layer structure, and the top and bottom of the cage (2) are conical structures.

5. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The cage (2) is equipped with lighting and ventilation facilities.

6. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The cage (2) is equipped with video monitoring and communication equipment.

7. The vertical transport system for a shaft boring machine according to claim 1, characterized in that, The cage (2) is equipped with a material fixing device inside.

8. An openable and closable lifting platform for a shaft boring machine, characterized in that, The hoisting platform is used in the vertical transportation system for a shaft boring machine as described in any one of claims 1 to 7, wherein the hoisting platform body (4) has a channel opening (5) and an integrated channel opening and closing device.

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