Lining trolley of large longitudinal slope flood discharge and sand discharge hole

Abstract

The invention discloses a lining trolley of a large longitudinal slope flood discharge and sand discharge hole, and belongs to the technical field of tunnel lining construction. The trolley comprises a portal frame, a walking mechanism, a jacking mechanism, a climbing mechanism and a leveling construction platform. And the portal frame is connected with a walking mechanism walking on the track through a guide mechanism. The jacking mechanism is arranged at the lower end of the portal stand column and used for adjusting the height of the portal to pass through the variable slope section. The climbing mechanism is arranged at the bottom of the portal frame bottom beam and comprises a movable sliding table moving along a track, a traction hydraulic cylinder and a rotationally arranged anti-skid hook; the track is provided with a hook groove, and the anti-skid hook can be clamped into the hook groove to prevent the trolley from sliding on the slope reversely. The construction platform and the portal form a triangular structure through the platform, the adjusting rod and the portal, and the platform dip angle is changed by adjusting the length of the adjusting rod to keep a horizontal working face. The self-adaptive height adjustment, reliable traction anti-slip and platform real-time leveling functions are integrated, the problems that in large longitudinal slope tunnel construction, a variable slope section of a trolley is difficult to pass through, slope slipping is likely to happen, and an operation platform inclines are effectively solved, and the safety, continuity and efficiency of construction are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel lining construction technology, specifically to a lining trolley for a flood discharge and sand removal tunnel with a large longitudinal slope. Background Technology

[0002] As a key piece of equipment used for concrete lining in tunnel construction, the lining trolley's movement and positioning accuracy directly affect construction efficiency and quality. In tunnel engineering, especially in mountainous or complex geological conditions, tunnels are often designed with steep longitudinal slopes, resulting in transitional areas between horizontal and ascending sections on the construction track. Under such conditions, traditional lining trolleys exhibit the following prominent problems during movement and construction: 1) Difficulty in passing through the slope change section: The lining trolley moves along the track step by step according to the construction steps. When entering the climbing section from the horizontal section, due to the rigidity of the trolley structure and the fixed posture, its front end is prone to interference and collision with the track or structure of the climbing section, which makes it impossible for the trolley to pass through the slope change section smoothly, seriously affecting the continuity of construction and even causing equipment damage.

[0003] 2) Insufficient traction power and risk of slippage on steep longitudinal slopes: Traditional lining trolleys rely on towing devices (such as winches or tractors) to move on the track. However, on steep longitudinal slopes, due to the trolley's weight and load, and increased slope resistance, conventional traction equipment often lacks sufficient power, resulting in low moving efficiency. Furthermore, during parking or movement on slopes, the trolley is prone to slipping and sliding, posing a serious safety hazard.

[0004] 3) Poor adaptability of the construction platform, affecting construction safety and efficiency: The construction platform set on the lining trolley is in a horizontal state when constructing in horizontal sections. When the trolley is in a section with a large longitudinal slope, the construction platform tilts accordingly, making it difficult for workers to maintain a stable position. They must rely on safety ropes and other protective equipment, which not only makes operation inconvenient and reduces construction efficiency, but also easily leads to fatigue and safety accidents due to long-term tilted operation, failing to meet the requirements of continuous and efficient construction.

[0005] In summary, existing lining trolleys suffer from problems in tunnel construction on steep slopes, including poor maneuverability in changing slope sections, insufficient power in the traction system leading to slippage, and an inability of the construction platform to adapt to slope changes. These issues hinder the overall progress and safety of tunnel construction. Therefore, there is an urgent need for a lining trolley with self-adjusting posture capabilities, reliable traction and anti-slippage functions, and an adjustable construction platform to meet the challenges of constructing tunnels with complex slopes. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a lining trolley for a flood discharge and sand drainage tunnel on a large longitudinal slope, which solves the problems of traditional lining trolleys in construction on large longitudinal slopes, such as difficulty in passing through slope-changing sections, insufficient traction power leading to slippage, and the inability of the construction platform to adapt to slope changes. This invention improves the trolley's passability, safety, and construction efficiency under complex slope conditions.

[0007] This invention is achieved through the following technical solution: A lining trolley for a flood discharge and sediment flushing tunnel with a large longitudinal slope, characterized in that it includes: A gantry, comprising a three-dimensional frame consisting of columns and a base beam, wherein the base beam is connected to a traveling mechanism via a guide mechanism; A traveling mechanism, mounted on a track, is used to support the gantry and drive it to move along the track; A lifting mechanism, located at the lower end of the column, is used to adjust the height of the gantry. The climbing mechanism is located at the bottom of the bottom beam and includes a movable slide that moves along the track. The movable slide is connected to the bottom beam via a traction hydraulic cylinder, and an anti-slip hook is rotatably located at the front end of the movable slide. The track is provided with a hook groove, and the anti-slip hook can be engaged in the hook groove under the action of gravity to restrict the reverse movement of the lining trolley. Additionally, an angle-adjustable construction platform is installed at the end of the gantry. The construction platform includes a platform and an adjusting rod. The platform, column, and adjusting rod form a triangular support structure, and the tilt angle of the platform is adjusted by changing the length of the adjusting rod.

[0008] Preferably, the lifting mechanism includes a hydraulic cylinder, which is disposed inside the column. When the piston rod of the hydraulic cylinder extends downward, it can abut against the track or the traveling mechanism to lift the gantry.

[0009] Preferably, the guiding mechanism includes a guide post disposed on the top of the traveling mechanism and a guide hole disposed on the bottom beam, wherein the guide post and the guide hole are slidably engaged.

[0010] Preferably, the cylinder body of the traction hydraulic cylinder in the climbing mechanism is rotatably connected to a fixed node located at the bottom of the bottom beam, and its piston rod is rotatably connected to the movable slide.

[0011] Preferably, the front end of the fixed node is also provided with an anti-slip hook.

[0012] Preferably, the anti-slip hook includes a hook rod and a hook body disposed at the front end of the hook rod, wherein the front end face of the hook body facing the direction of movement is an inclined surface.

[0013] Preferably, the bottom of the bottom beam has multiple climbing mechanisms spaced apart along the direction of movement; The track includes two parallel guide rails, and each guide rail has hook grooves spaced apart along its length on its top surface.

[0014] Preferably, the adjusting rod is one of a threaded rod, a hydraulic cylinder, or an electric push rod.

[0015] Preferably, one end of the platform is hinged to the gantry, and both ends of the adjusting rod are hinged to the gantry and the platform, respectively.

[0016] Preferably, the construction platform further includes a ladder, which connects two adjacent construction platforms or connects the construction platform to the foundation.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: This application provides a lining trolley for a flood discharge and sediment flushing tunnel with a steep longitudinal slope. By systematically integrating and functionally coordinating a gantry, traveling mechanism, jacking mechanism, climbing mechanism, and adjustable leveling construction platform, a specialized lining trolley suitable for the construction of complex slope tunnels such as flood discharge and sediment flushing tunnels with steep longitudinal slopes is constructed. Specifically, the connection between the guiding mechanism and the traveling mechanism ensures the basic stability of the gantry movement. The jacking mechanism allows the trolley to actively adjust the gantry height when passing through the slope transition area between the horizontal and climbing sections, effectively avoiding structural interference and solving the technical bottleneck of traditional trolleys' difficulty in navigating slope transition sections. Simultaneously, the climbing mechanism, including a moving slide, a traction hydraulic cylinder, and anti-slip hooks, utilizes the gravity self-locking and inclined plane disengagement mechanism of the anti-slip hooks and the hook grooves on the track. This not only provides continuous and reliable traction power for the trolley on steep longitudinal slopes but, more importantly, fundamentally eliminates the significant safety hazard of the trolley slipping down the slope during construction, achieving integrated traction and braking anti-slip mechanism. In addition, the angle-adjustable construction platform, through the cooperation of the triangular support structure and the adjusting rod, can level the working plane in real time according to the change of the gantry slope, providing construction personnel with a stable and level operating environment, significantly reducing the safety risks and fatigue intensity of high-altitude inclined operations, and improving construction efficiency and quality. Attached Figure Description

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

[0019] Figure 1 This is a front view of the lining trolley of the present invention; Figure 2 This is a side view of the lining trolley of the present invention; Figure 3This is a schematic diagram of the lifting mechanism of the present invention; Figure 4 This is a schematic diagram of the climbing mechanism of the present invention; Figure 5 This is a schematic diagram of the construction platform of the present invention; In the diagram: 1. Supporting formwork; 2. Gantry; 3. Traveling mechanism; 4. Lifting mechanism; 5. Climbing mechanism; 6. Construction platform; 7. Track; 41. Column; 42. Hydraulic cylinder; 43. Bottom beam; 44. Guide column; 45. Jack; 51. Pulling hydraulic cylinder; 52. Moving slide; 53. Fixed node; 54. Anti-slip hook; 61. Platform; 62. Adjusting rod; 63. Ladder; 71. Hook groove. Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] See Figure 1-5 A lining trolley for a large longitudinal slope flood discharge and sand drainage tunnel includes a gantry 2, a support template 1, a traveling mechanism 3, a lifting mechanism 4, a climbing mechanism 5, and a construction platform.

[0026] The gantry consists of a three-dimensional frame gantry constructed from columns 52, longitudinal beams, transverse beams, diagonal braces, and a base beam 43. Multiple columns are spaced apart on top of the base beam 43. The base beam 43 has a channel guide mechanism connected to the traveling mechanism 3. A lifting mechanism 4 is located at the lower end of the columns to adjust the height of the gantry. The traveling mechanism 3 is mounted on a track 7. The support template 1 covers the outside of the gantry and is connected by a support structure. An angle-adjustable construction platform 6 is located at both ends of the gantry. The climbing mechanism 5 is located at the bottom of the bottom beam and includes a movable slide 52 that moves along the track. The front end of the movable slide 52 is provided with a rotatable anti-slip hook 54. The movable slide 52 is set on the track and is connected to the bottom beam through a pulling hydraulic cylinder 51. The track is provided with a groove 71. Under the action of gravity, the anti-slip hook 54 can be locked into the groove 71 to restrict the reverse movement of the lining trolley.

[0027] In some implementations, the cross-section of the gantry is the same as that of the tunnel, for example, in the entrance structure. In this gantry, the columns are connected by crossbeams, and each column is fixed by connecting beams and diagonal steel pipes and bolts. The lower end of each column is connected to the bottom beam 43 to form a three-dimensional frame gantry structure.

[0028] In some implementations, the support template consists of multiple template sections connected end to end. Each template section includes a top template and a side template. Two top templates are spliced ​​together on the top of the gantry. Adjacent top templates are connected as a whole by bolts. The side templates are set on the side walls of the gantry. The top template and the side template are connected by a hinge shaft.

[0029] For example, the trolley is composed of multiple sections of templates in the longitudinal direction. A 12m long trolley has 8 sections, each 1.5m wide, and the templates are connected by bolts and flanges. The templates have working windows arranged in a quincunx pattern, and the top of the gantry is equipped with I-beam supports 24 that are fixedly in contact with the top formwork. The side forms are connected together by several box beams welded from interlocking channel steel to enhance the overall rigidity of the side forms.

[0030] In some implementations, the lifting mechanism 4 includes a hydraulic cylinder 42. The lower part of the column is an open hollow structure. The hydraulic cylinder 42 is located inside the column. The piston rod of the hydraulic cylinder 42 moves downward and abuts against the fixed object, generating a reverse force on the bottom beam. The bottom beam moves upward through a guide device to increase the height of the entire gantry.

[0031] The piston rod of the hydraulic cylinder 42 passes through the bottom beam and abuts against the rail; Alternatively, the piston rod of the hydraulic cylinder 42 passes through the bottom beam and abuts against the top of the traveling mechanism.

[0032] In some implementations, the guiding mechanism includes a guide post and a guide hole that mates with it. The guide post is located on the top of the traveling mechanism 3, and the guide hole is located in the bottom beam 43. The guide hole is coaxial with the hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected to the top of the guide post.

[0033] During the lifting and lowering of the gantry, the bottom beam moves up and down along the guide column through the guide holes. This structural design plays a crucial role in limiting and guiding the entire gantry. Since the hydraulic cylinders driving the gantry can only provide linear reciprocating motion, the gantry is prone to deviation or jamming without external constraints. The precise fit between the guide column and the guide hole effectively constrains the gantry's vertical movement trajectory, preventing swaying or tilting caused by lateral forces or unbalanced loads, thus ensuring a smooth and reliable lifting process. This guiding mechanism not only enhances the overall stability of the gantry's movement but also significantly reduces the radial load on the hydraulic cylinders, preventing bending, wear, or seal damage due to uneven loading, thereby extending the equipment's service life.

[0034] Preferably, each traveling mechanism is equipped with a guide mechanism and a lifting mechanism at its top.

[0035] In some embodiments, the climbing mechanism includes a movable slide 52, a pulling hydraulic cylinder 51, and an anti-slip hook 54.

[0036] A fixed node 53 is provided on the bottom surface of the bottom beam. The cylinder body of the traction hydraulic cylinder 51 is rotatably connected to the fixed node. The piston rod of the traction hydraulic cylinder 51 is rotatably connected to the movable slide 52. The bottom of the movable slide 52 is provided with a track groove that cooperates with the track. The movable slide 52 is slidably installed on the track through the track groove. The anti-slip hook 54 is rotatably installed at the front end of the movable slide 52. The front end is one end in the direction of movement. A groove 71 is provided on the track. Under the action of gravity, the anti-slip hook 54 can be locked into the hook groove 71 to restrict the reverse movement of the lining trolley.

[0037] The anti-slip hook 54 includes a hook rod and a hook body disposed on its front bottom surface, the front surface of the hook body being an inclined surface. The anti-slip hook 54 mainly consists of a hook rod and a hook body fixed to its front bottom surface, wherein the front surface of the hook body is designed as an inclined structure. During the operation of the moving slide, the hook body always adheres to the track surface or is embedded inside the hook groove. When the moving slide moves the anti-slip hook along the surface of the track 7 to directly above the hook groove, under the action of gravity, the hook body will automatically fall and engage inside the hook groove, effectively preventing the slide from moving in the opposite direction. If the slide continues to move forward, the inclined surface at the front end of the hook body will contact the end wall of the hook groove. With the guiding effect of the inclined surface, the hook body can smoothly lift up and detach from the hook groove, achieving natural separation of the anti-slip hook from the groove opening, ensuring that the equipment continues to move forward without obstruction.

[0038] The track is arranged along the tunnel axis and includes two parallel guide rails. Multiple hook grooves 71 are set on the top surface of the guide rails at set intervals.

[0039] Preferably, multiple climbing mechanisms are spaced apart at the bottom of each bottom beam. The multiple climbing mechanisms work simultaneously to improve the movement efficiency and stability of the gantry.

[0040] In some embodiments, the front end of the fixed node 53 is provided with an anti-slip hook, which works synchronously with the anti-slip hook of the movable slide to improve the stability of the lining trolley operation.

[0041] The front end of the fixed node 53 is designed with an anti-slip hook structure, which works in conjunction with the corresponding anti-slip hook on the moving slide. The two work together during the movement of the trolley to effectively enhance the stability of the equipment during lining operations, reduce the risk of the lining trolley slipping backward, and thus significantly improve the operational stability and overall safety of the lining trolley in complex construction environments.

[0042] In some embodiments, the angle-adjustable construction platform 6 includes a platform 61, an adjusting rod 62, and a ladder 63; one end of the platform is hinged to the end of the column, and the other end is free; one end of the adjusting rod 62 is connected to the column, and the other end is connected to the platform; the platform, column, and adjusting rod form a triangular structure; by changing the length of the adjusting rod, the angle of the platform can be changed, so that the platform is always at the optimal working angle, i.e., the horizontal position.

[0043] One end of the structure is hinged to the top of the column, while the other end is freely cantilevered. The upper end of the adjusting rod 62 is hinged to the upper middle part of the column, and its lower end is hinged to the bottom of the platform. Thus, the platform, column, and adjusting rod together form a stable triangular support system. The effective length of the adjusting rod can be precisely adjusted by rotating the threaded mechanism or telescopic sleeve device. This change in length causes the platform to rotate around the hinge point of the column, thereby achieving flexible control of the platform's tilt angle. This design ensures that even when the column's tilt angle changes, the platform can still maintain a level working state through rapid adjustment, significantly improving the equipment's adaptability and operational stability under different working conditions.

[0044] The adjusting rod is located at the top or bottom of the platform, and the adjusting rod can be a threaded mechanism, a hydraulic cylinder, or an electric push rod.

[0045] The upper end of the ladder is connected to the platform, and the lower end of the platform is connected to the foundation.

[0046] In another embodiment, multiple construction platforms are spaced apart from top to bottom at the end of the gantry. Adjacent construction platforms are connected by ladders, which are detachable. The platforms are adjusted to a predetermined angle, and then the ladders are installed.

[0047] The working principle of the lining trolley for a large longitudinal slope flood discharge and sand drainage tunnel provided in this application will be described in detail below.

[0048] 1. Passing through the slope change section: When the trolley enters the climbing section from the horizontal section, the lifting mechanism 4 is activated. The hydraulic cylinder 42 pushes the piston rod downwards, contacting the track 7 or the traveling mechanism 3, and using the reaction force to lift the bottom beam 43 and the entire gantry 2. During the lifting process, the guide column 44 engages with the guide hole on the bottom beam 43 to ensure the gantry rises vertically and smoothly, avoiding lateral deviation. After being lifted to a certain height, the front end of the trolley leaves the track interference area, and then the traveling mechanism 3 slowly advances along the track, smoothly traversing the slope section.

[0049] 2. The process of climbing and preventing slippage: When moving on a steep longitudinal slope, the climbing mechanism 5 starts to work. The piston rod of the hydraulic cylinder 51 retracts, pulling the moving slide 52 forward along the track 7. The anti-slip hook 54 at the front end of the moving slide 52 hangs down naturally under the action of gravity. When the slide moves directly above the track hook groove 71, the anti-slip hook 54 automatically engages in the groove to prevent the trolley from sliding in the opposite direction due to the gravity component of the slope.

[0050] Then, the piston rod of the hydraulic cylinder 51 extends, and the moving slide is connected to the track through the anti-slip hook 54, so that the moving slide and the track form a fixed node. The thrust generated by the extension of the piston rod acts on the ground beam, thereby pushing the gantry to move as a whole. At the same time, the traveling mechanism works together to move the lining trolley.

[0051] When the piston rod extends to its longest position, the anti-slip hook of the fixed node connects with the track, fixing the entire lining trolley. The piston rod of the pulling hydraulic cylinder 51 retracts, pulling the moving slide 52 to slide forward along the track 7. The inclined surface at the front end of the anti-slip hook 54 contacts the hook groove wall and smoothly disengages under the action of traction force, realizing continuous climbing. Repeatedly pulling the piston rod of the pulling hydraulic cylinder 51 to retract or extend realizes the movement of the lining trolley. Multiple climbing mechanisms 5 work together to improve traction force and stability.

[0052] 3. Leveling process of the construction platform: When the trolley is on a slope, the gantry 2 tilts with the slope, and the construction platform 6 tilts accordingly. At this time, the length of the adjusting rod 62 (such as a threaded rod, hydraulic cylinder, or electric push rod) is changed, pushing the platform 61 to rotate around the hinge point with the column 41 until the platform returns to a horizontal state. Operators can work safely on the horizontal platform without relying on additional protective equipment, improving construction efficiency and safety.

[0053] 4. Overall construction process: The lining trolley moves in sections on track 7. After each lining section, the template height is adjusted to fit the tunnel outline. The climbing mechanism 5 provides traction and anti-slip protection, and the construction platform 6 is leveled in real time for operation. The three work together to achieve continuous, efficient, and safe concrete lining construction of tunnels with steep longitudinal slopes.

[0054] By organically combining the above-mentioned mechanisms, this invention effectively solves the technical problems of traditional trolleys, such as poor passability in slope sections, insufficient traction leading to slippage, and the inability of the construction platform to adapt to slope changes. It significantly improves the adaptability, safety, and construction efficiency of lining trolleys under complex slope conditions.

[0055] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A lining trolley for a flood discharge and sediment flushing tunnel with a large longitudinal slope, characterized in that, include: A gantry, comprising a three-dimensional frame consisting of columns and a base beam, wherein the base beam is connected to a traveling mechanism via a guide mechanism; A traveling mechanism, mounted on a track, is used to support the gantry and drive it to move along the track; A lifting mechanism, located at the lower end of the column, is used to adjust the height of the gantry. The climbing mechanism is located at the bottom of the bottom beam and includes a movable slide that moves along the track. The movable slide is connected to the bottom beam via a traction hydraulic cylinder, and an anti-slip hook is rotatably located at the front end of the movable slide. The track is provided with a hook groove, and the anti-slip hook can be engaged in the hook groove under the action of gravity to restrict the reverse movement of the lining trolley. Additionally, an angle-adjustable construction platform is installed at the end of the gantry. The construction platform includes a platform and an adjusting rod. The platform, column, and adjusting rod form a triangular support structure, and the tilt angle of the platform is adjusted by changing the length of the adjusting rod.

2. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 1, characterized in that, The lifting mechanism includes a hydraulic cylinder, which is located inside the column. When the piston rod of the hydraulic cylinder extends downward, it can abut against the track or the traveling mechanism to lift the gantry.

3. The lining trolley for a flood discharge and sediment flushing tunnel with a large longitudinal slope according to claim 1 or 2, characterized in that, The guiding mechanism includes a guide post disposed on the top of the traveling mechanism and a guide hole disposed on the bottom beam, wherein the guide post and the guide hole are slidably engaged.

4. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 1, characterized in that, The cylinder body of the traction hydraulic cylinder in the climbing mechanism is rotatably connected to a fixed node located at the bottom of the bottom beam, and its piston rod is rotatably connected to the movable slide.

5. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 4, characterized in that, The front end of the fixed node is also equipped with an anti-slip hook.

6. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 1, characterized in that, The anti-slip hook includes a hook rod and a hook body disposed at the front end of the hook rod, wherein the front end face of the hook body facing the direction of movement is an inclined plane.

7. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 1, characterized in that, The bottom of the bottom beam has multiple climbing mechanisms spaced apart along the direction of movement; The track includes two parallel guide rails, and each guide rail has hook grooves spaced apart along its length on its top surface.

8. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 1, characterized in that, The adjusting rod is one of a threaded rod, a hydraulic cylinder, or an electric push rod.

9. The lining trolley for a flood discharge and sediment flushing tunnel with a large longitudinal slope according to claim 8, characterized in that, One end of the platform is hinged to the gantry, and both ends of the adjusting rod are hinged to the gantry and the platform, respectively.

10. The lining trolley for a large longitudinal slope flood discharge and sediment flushing tunnel according to claim 8, characterized in that, The construction platform also includes a ladder, which connects two adjacent construction platforms or connects the construction platform to the foundation.

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