A protective and reinforcement structure for a reservoir flood discharge tunnel

Abstract

The present invention relates to a protective and reinforcement structure for a reservoir flood discharge tunnel, and relates to the technical field of flood discharge tunnel protection projects; it includes a support shaft, support rings are installed at both ends of the support shaft, support devices are arranged on the opposite sides of the two support rings, mounting seats are arranged at both ends of the support shaft, and traveling wheels are slidably arranged on the mounting seats. A repair device is also arranged on the support shaft. The present invention can solve the following problems existing in the prior art during the process of flood discharge tunnel protection projects: First, by setting the repair device, during the process of supporting the top of the flood discharge tunnel body, the cracks are repaired, realizing the synchronous progress of support and repair, avoiding the disturbance and damage to the tunnel body caused by secondary construction, and the repair material is injected into the cracks, which can effectively fill the cracks and form a sealing layer to ensure the repair effect. Second, by setting the support device, it can adapt to flood discharge tunnels of different shapes, and the support and repair plan can improve the construction efficiency and shorten the construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of flood discharge tunnel protection projects, and particularly relates to a protection and reinforcement structure for a reservoir flood discharge tunnel. Background Art

[0002] During the design and operation of reservoir flood discharge tunnels, various problems may be encountered. These problems not only affect the function of the flood discharge tunnels but also pose a threat to the overall safety of the reservoir. Due to long-term exposure to the natural environment, the concrete or metal structures of the flood discharge tunnels may experience aging, corrosion, or wear, resulting in a decrease in strength. High-speed water flow can scour the bottom and sides of the flood discharge tunnels, potentially causing structural damage or unstable foundations. Sediments and particulate matter in the water flow may erode the surface materials of the flood discharge tunnels, leading to surface wear or peeling.

[0003] To ensure the safe and effective operation of reservoir flood discharge tunnels, strict quality control must be implemented in all aspects of design, construction, maintenance, and management. Problems should be detected and solved in a timely manner. Through regular inspections, maintenance, and necessary reinforcement measures, the service life of the flood discharge tunnels can be effectively extended, and the safe operation of the reservoir can be guaranteed.

[0004] For example, Chinese Patent with publication number CN114320402B discloses a protection device for dangerous rocks at the top of a flood discharge tunnel body;

[0005] It discloses a protection device for dangerous rocks at the top of a flood discharge tunnel body, including hydraulic support devices and a first support arch arranged on the left and right sides inside the tunnel body. A second support arch is arranged at the top of the first support arch; a number of support anchor rods penetrate along the arc on the first support arch and the second support arch; elastic buffer devices are arranged on the support anchor rods. The elastic buffer devices include a first buffer arc plate fitting with the first support arch, a second buffer arc plate fitting with the second support arch, and an elastic member arranged between the first buffer arc plate and the second buffer arc plate. Both the first buffer arc plate and the second buffer arc plate are slidably connected to the outside of the support anchor rods; a number of buffer sacs are also arranged between the first support arch and the second support arch, and non-Newtonian liquid is filled inside the buffer sacs; the present invention can effectively support the rock mass at the top of the tunnel body and support and buffer the rock mass when the rock mass loosens or collapses, effectively ensuring the safety of the tunnel.

[0006] However, there are still some deficiencies in the above device during actual use:

[0007] 1. The above device effectively supports the rock mass at the top of the tunnel body through support anchor rods and supports and buffers the rock mass when the rock mass loosens or collapses, effectively ensuring the safety of the tunnel. However, the simple insertion of support anchor rods may cause secondary damage to the tunnel body, and there is a lack of a device for strengthening the top of the tunnel body during the support process.

[0008] 2. When maintenance is required, the device needs to be removed, and it is impossible to support the flood discharge tunnel body. The rock mass at the top of the tunnel body will lose the necessary support, which may lead to a series of safety hazards. Especially when personnel enter the tunnel for maintenance operations, the risk is particularly prominent and may cause personnel injuries.

[0009] Therefore, under the viewpoints stated above, it is of great significance to improve and perfect the protection device for the dangerous rocks at the top of the flood discharge tunnel body, which can increase the device for strengthening the top of the tunnel body during the support process, further support the rock mass at the top of the tunnel body, and reduce the risk of maintenance operations. Summary of the Invention

[0010] To solve the above problems, the present invention provides a protection and reinforcement structure for a reservoir flood discharge tunnel, including a support shaft. Support rings are installed at both ends of the support shaft. Support devices are provided on the opposite sides of the two support rings. Mounting seats are provided at both ends of the support shaft, and traveling wheels are slidably arranged on the mounting seats.

[0011] A repair device is also provided on the support shaft. The repair device includes a movable rod. Arc-shaped chutes are opened on both support rings. Connecting blocks are slidably arranged in the chutes, and the two connecting blocks are jointly provided with a movable rod.

[0012] Preferably, a through driving groove is opened on the movable rod. A reciprocating screw is rotatably installed in the driving groove. A threaded seat is threadedly installed on the reciprocating screw. A through fixed shaft is provided on the threaded seat, and a repair unit is arranged inside the fixed shaft.

[0013] Preferably, the support device includes a fixing plate. The fixing plate is sleeved on the support shaft on the opposite side of the support ring. Driving plates are rotatably arranged on the opposite sides of the two fixing plates. A plurality of support rods are slidably arranged equidistantly along the axis on the fixing plate. A plurality of arc-shaped guiding grooves are opened along the axis on the driving plate. A mating shaft is installed at one end of the support rod close to the support shaft, and the mating shaft is slidably arranged in the guiding groove.

[0014] Preferably, an arc-shaped pressing plate is hinged at one end of the support rod away from the support shaft, and mating balls are evenly rotatably installed on the pressing plate.

[0015] Preferably, a driving member for driving the driving plate to rotate is provided on the support rod. The driving member includes a first gear. The two first gears are rotatably arranged on the opposite side surfaces of the fixing plate. A first toothed ring is sleeved outside the driving plate, and the first gear meshes with the first toothed ring.

[0016] Preferably, the repair unit includes a repair shaft. A working groove is formed inside the fixed shaft. The repair shaft is rotatably and slidably arranged in the working groove. A matching block is arranged at the bottom of the repair shaft. A spiral groove is formed on the inner wall of the working groove. The matching block is slidably arranged in the spiral groove.

[0017] Preferably, a driving ring is sleeved at the bottom of the repair shaft. A sleeve rod is rotatably installed on the support shaft. A support block is slidably arranged on the sleeve rod. An electric push rod is connected to the support block. The telescopic end of the electric push rod penetrates through the fixed shaft and is connected to the driving ring. A spring telescopic rod is installed on the threaded seat. The telescopic end of the spring telescopic rod is connected to the support block.

[0018] Preferably, a baffle is commonly connected between the two support rings below the support shaft. A storage box is installed on the baffle. A self-priming pump is installed above the storage box. The input end and the output end of the self-priming pump are respectively communicated with the storage box and the inside of the repair shaft. A plurality of discharge ports are evenly formed on the repair shaft.

[0019] Preferably, a driving unit for driving the connecting block to slide inside the sliding groove is arranged on the support ring. The driving unit includes a driving shaft. The driving shaft is rotatably arranged on the support ring through which the connecting block passes. A second gear is installed at one end of the driving shaft located outside the support ring. An arc-shaped second rack is arranged on the support ring. The second rack meshes with the second gear.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] First, by setting the repair device, during the process of supporting the top of the flood discharge tunnel body, the cracks are repaired, realizing the synchronous progress of support and repair, avoiding the disturbance and damage to the tunnel body caused by secondary construction, and the repair material is injected into the cracks, which can effectively fill the cracks and form a sealing layer to ensure the repair effect.

[0022] Second, by setting the support device, it can be adjusted according to the actual situation on site, reducing the uncertainty and risk during the construction process, adapting to flood discharge tunnels of different shapes, enabling the support and repair plan to improve the construction efficiency, shorten the construction period, and reduce the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 is a schematic diagram of a partial structure of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the support device of the present invention.

[0027] Figure 4 It is a schematic structural diagram of the repair device of the present invention.

[0028] Figure 5 It is a schematic structural diagram of the support ring of the present invention.

[0029] Figure 6 It is the present invention Figure 5 The schematic structural diagram of the position at A in

[0030] Figure 7 It is a schematic structural diagram of the repair unit of the present invention.

[0031] Figure 8 It is a schematic position diagram of the connecting rod of the present invention.

[0032] In the figure, 1, support shaft; 10, support ring; 11, mounting seat; 12, walking wheel; 2, support device; 20, fixing plate; 21, driving plate; 22, support rod; 23, guiding groove; 24, mating shaft; 3, repair device; 30, movable rod; 31, sliding groove; 32, connecting block; 33, reciprocating screw; 34, threaded seat; 35, fixed shaft; 40, abutting plate; 41, mating ball; 5, driving member; 50, first gear; 51, first toothed ring; 36, repair unit; 360, repair shaft; 361, working groove; 362, mating block; 363, spiral groove; 60, driving ring; 61, sleeve rod; 62, support block; 63, electric push rod; 64, spring telescopic rod; 70, baffle; 71, storage box; 72, self-priming pump; 73, discharge port; 8, driving unit; 81, second gear; 82, second rack; 9, connecting rod. Detailed implementation manners

[0033] The following will be described in detail with reference to the attached Figures 1-8 embodiments of the present invention.

[0034] The embodiments of the present application disclose a protective and strengthening structure for a reservoir flood discharge tunnel. The present invention is mainly applied in the process of protecting the flood discharge tunnel. In terms of technical effects, it can avoid the problems that the support effect is poor when only inserting the support rod into the inner wall of the flood discharge tunnel and it may cause secondary damage to the wall; further, the present invention can also solve the problem that when the flood discharge tunnel needs to be repaired, it can automatically repair the top of the flood discharge tunnel and can also perform support during the repair process to ensure safety during the repair process. Embodiment

[0035] Refer to Figure 1 、 Figure 2 and Figure 4As shown in the figure, it includes a support shaft 1. Support rings 10 are installed at both ends of the support shaft 1. Support devices 2 are arranged on the opposite sides of the two support rings 10. Mounting seats 11 are arranged at both ends of the support shaft 1. Travel wheels 12 are slidably arranged on the mounting seats 11.

[0036] It should be noted that the rotation direction of the travel wheel 12 is consistent with the extension direction of the support shaft 1. The support shaft 1 is driven by the travel wheel 12 to move along the direction of the protection hole.

[0037] A repair device 3 is also arranged on the support shaft 1. The repair device 3 enters the flood discharge tunnel through the travel wheel 12. The cracks generated inside the flood discharge tunnel are repaired by the repair device 3 to reinforce the flood discharge tunnel and ensure the normal operation of the flood discharge tunnel.

[0038] The repair device 3 includes a movable rod 30. Arc-shaped chutes 31 are opened on both support rings 10. Connecting blocks 32 are slidably arranged in the chutes 31. The two connecting blocks 32 are jointly provided with a movable rod 30. By sliding the two connecting blocks 32 inside the chutes 31, when the repair device 3 enters the inside of the flood discharge tunnel, the rotation angle of the movable rod 30 is adjusted for the top of the flood discharge tunnel with an arc-shaped top to adapt to the upper end of the flood discharge tunnel. A through driving groove is opened on the movable rod 30. A reciprocating screw 33 is rotatably installed in the driving groove. A threaded seat 34 is threadedly installed on the reciprocating screw 33. A through fixed shaft 35 is arranged on the threaded seat 34. A repair unit 36 is arranged inside the fixed shaft 35. The repair unit 36 on the threaded seat 34 is driven by the reciprocating screw 33 to move along the length direction of the movable rod 30. By adjusting the position of the movable rod 30 and the position of the repair unit 36 on the movable rod 30, the top of the flood discharge tunnel between the two support rings 10 can be repaired and reinforced.

[0039] Refer to Figure 2 and Figure 3 As shown in the figure, it is a schematic structural diagram of the structure for supporting the top of the flood discharge tunnel. Specifically, the support device 2 includes a fixing plate 20. The fixing plate 20 is sleeved on the support shaft 1 on the opposite side of the support ring 10. Driving plates 21 are rotatably arranged on the opposite sides of the two fixing plates 20. A plurality of support rods 22 are slidably arranged on the fixing plate 20 at equal distances along its axis. A plurality of arc-shaped guiding grooves 23 are opened on the driving plate 21 along its axis. A mating shaft 24 is installed at one end of the support rod 22 close to the support shaft 1. The mating shaft 24 is slidably arranged in the guiding groove 23.

[0040] When it is necessary to drive the support rod 22 to slide on the fixing plate 20 to adapt to the top of the flood discharge tunnel, the driving plate 21 is rotated. The guiding groove 23 on the driving plate 21 will drive the mating shaft 24 to slide in the reverse direction. At this time, the mating shaft 24 will drive the support rod 22 to slide on the fixing plate 20.

[0041] It should be noted that the support rod 22 of the present invention slides radially along the fixed plate 20 and cannot rotate circumferentially around the support shaft 1. The support rod 22 is controlled by the guiding groove 23 on the driving plate 21. That is, by driving the driving plate 21 to rotate, and then with the cooperation of the cooperation shaft 24 and the guiding groove 23, the support rod 22 moves radially along the fixed plate 20. Furthermore, it shows that when the driving plate 21 does not rotate, the support rod 22 will remain stationary, that is, it will not slide radially along the fixed plate 20.

[0042] Referring to Figure 2 and Figure 3 As shown, it is a schematic structural diagram for driving the driving plate 21 to rotate. Specifically, a driving member 5 for driving the driving plate 21 to rotate is provided on the support rod 22. The driving member 5 includes a first gear 50. Two first gears 50 are rotatably arranged on the opposite side surfaces of the fixed plate 20. A first toothed ring 51 is sleeved outside the driving plate 21, and the first gear 50 meshes with the first toothed ring 51.

[0043] The first gear 50 rotates to drive the first toothed ring 51 to rotate, and the first toothed ring 51 drives the driving plate 21 to rotate. The rotation angle of the driving plate 21 is controlled by the first gear 50, and thus the sliding distance of the support rod 22 is controlled.

[0044] An arc-shaped plate is installed between the two support rings 10. A first motor is installed on the arc-shaped plate. The first motor is a double-shaft motor. The two output shafts of the first motor are respectively connected to the first gears 50 on the two fixed plates 20, so as to control the synchronous sliding of the support rods 22 at both ends of the support shaft 1.

[0045] The walking wheels 12 arranged to slide can control the height of the support shaft 1. When dealing with a flood discharge tunnel with an arc-shaped upper part and straight surfaces on both sides, it can support the flood discharge tunnel, and the support device 2 can also support a circular flood discharge tunnel, adapting to various construction environments and adjusting according to specific situations to ensure the effectiveness and stability of the support.

[0046] An arc-shaped abutting plate 40 is hingedly arranged at one end of the support rod 22 far away from the support shaft 1, and cooperating balls 41 are evenly and rotatably installed on the abutting plate 40.

[0047] Among them, the rotation direction of the cooperating ball 41 is the same as that of the walking wheel 12. When the walking wheel 12 drives the support ring 10 to move, the cooperating ball 41 will roll on the inner wall of the flood discharge tunnel, facilitating entry.

[0048] Referring to Figure 4 and Figure 7As shown, it is a schematic structural diagram for strengthening the flood discharge tunnel; specifically, the repair unit 36 includes a repair shaft 360. A working groove 361 is formed inside the fixed shaft 35. The repair shaft 360 is rotatably and slidably arranged in the working groove 361. A mating block 362 is provided at the bottom of the repair shaft 360. A spiral groove 363 is formed on the inner wall of the working groove 361. The mating block 362 is slidably arranged in the spiral groove 363.

[0049] During the process of the repair shaft 360 sliding in the fixed shaft 35, the mating block 362 on the repair shaft 360 will slide inside the spiral groove 363. Thus, the spiral groove 363 can reversely drive the repair shaft 360 to rotate during the process of moving. When repairing and strengthening the flood discharge tunnel, the repair shaft 360 will rotate and enter the interior of the flood discharge tunnel.

[0050] By controlling the moving distance of the repair shaft 360, it can be adjusted for flood discharge tunnels with different diameters or heights.

[0051] Refer to Figure 4 and Figure 7 As shown, it is a schematic structural diagram for driving the repair shaft 360 to move; specifically, a driving ring 60 is sleeved at the bottom of the repair shaft 360. A sleeve rod 61 is rotatably installed on the support shaft 1. A support block 62 is slidably arranged on the sleeve rod 61. An electric push rod 63 is connected to the support block 62. The telescopic end of the electric push rod 63 passes through the fixed shaft 35 and is connected to the driving ring 60. By pushing the driving ring 60 to slide inside the fixed shaft 35 through the electric push rod 63, the repair shaft 360 is driven to move inside the fixed shaft 35.

[0052] A spring telescopic rod 64 is installed on the threaded seat 34. The telescopic end of the spring telescopic rod 64 is connected to the support block 62.

[0053] During the process of the threaded seat 34 driving the fixed shaft 35 to move along the length direction of the reciprocating screw rod 33, the spring telescopic rod 64 will drive the support block 62 to move synchronously with the threaded seat 34, ensuring that the electric push rod 63 on the support block 62 and the fixed shaft 35 on the threaded seat 34 move synchronously, and ensuring the working efficiency of the repair shaft 360.

[0054] Refer to Figure 4 and Figure 7 As shown, it is a schematic structural diagram for repairing the flood discharge tunnel; specifically, a baffle 70 is commonly connected between two support rings 10 below the support shaft 1. A storage box 71 is installed on the baffle 70. A self-priming pump 72 is installed above the storage box 71. The input end and the output end of the self-priming pump 72 are respectively communicated with the storage box 71 and the interior of the repair shaft 360. A plurality of discharge ports 73 are evenly formed on the repair shaft 360.

[0055] After the repair shaft 360 is inserted into the inside of the flood discharge tunnel wall, the self-priming pump 72 is started, and the repair material inside the storage box 71 is transported into the repair shaft 360. The repair material will enter the crack of the flood discharge tunnel through the discharge port 73, repair the crack, and thus realize the reinforcement and protection of the flood discharge tunnel.

[0056] Among them, the self-priming pump 72 is preferably an existing grouting pump that can suck and deliver cement repair slurry.

[0057] In addition, the repair material includes but is not limited to high-strength and fast-drying cement-based repair mortar or chemical grouting materials, etc. Different types of repair materials are selected according to the specific crack conditions to repair the cracks and pits on the wall surface of the flood discharge tunnel.

[0058] Refer to Figure 4 、 Figure 5 and Figure 6 As shown in the figure, it is a schematic structural diagram of driving the fitting block 362 to slide inside the working groove 361; specifically, a driving unit 8 for driving the connecting block 32 to slide inside the sliding groove 31 is provided on the support ring 10. The driving unit 8 includes a driving shaft, the driving shaft is rotatably arranged on the connecting block 32 passing through the support ring 10, a second gear 81 is installed at one end of the driving shaft outside the support ring 10, and an arc-shaped second rack 82 is provided on the support ring 10. The second rack 82 meshes with the second gear 81.

[0059] A second motor is also installed on the connecting block 32 through a bracket. The output end of the second motor is connected to the second gear 81. The second motor drives the second gear 81 to rotate, so that the second gear 81 slides along the sliding groove 31 under the reverse action of the second rack 82, and then controls the movable rod 30 on the connecting block 32 to rotate along the axis of the fixed plate 20 to adapt to the upper surface of the flood discharge tunnel. Embodiment

[0060] On the basis of the first embodiment, in order to further improve the repair effect of the repair device 3; a connecting rod 9 is also proposed, which is beneficial to enhancing the synchronization of the movable rod 30 and the electric push rod 63, and ensuring that the electric push rod 63 and the fixed shaft 35 on the driving plate 21 move synchronously.

[0061] Refer to Figure 8 As shown in the figure, it is a schematic structural diagram of the synchronous operation of the movable rod 30 and the electric push rod 63; specifically, the connecting rod 9 is arranged at both ends of the sleeve rod 61, and the end of the connecting rod 9 away from the sleeve rod 61 is connected to the second motor. When the connecting block 32 slides inside the sliding groove 31, it will drive the second motor to move synchronously. At this time, the second motor will drive the sleeve rod 61 to rotate around the support shaft 1 through the connecting rod 9, ensuring that when the fixed shaft 35 on the movable rod 30 moves following the movable rod 30, the electric push rod 63 can rotate synchronously without affecting the electric push rod 63 to push the driving ring 60.

[0062] During operation: First step, the support shaft 1 is moved along the direction of the protection hole by the traveling wheels 12. During the process that the traveling wheels 12 drive the support ring to move, the mating ball 41 will roll on the inner wall of the flood discharge tunnel, facilitating entry.

[0063] Second step: When reaching the fixed position, the first motor is started. The first motor controls the rotation of the first gears 50 at both ends of the support shaft 1. The rotation of the first gears 50 drives the first toothed ring 51 to rotate. The first toothed ring 51 drives the drive plate 21 to rotate. By controlling the rotation angle of the drive plate 21 through the first gears 50, the guide groove 23 will reversely drive the mating shaft 24 to slide, and then control the sliding distance of the support rod 22 to adapt to the shape of the top of the flood discharge tunnel.

[0064] Third step: The second motor drives the second gear 81 to rotate, so that the second gear 81 slides along the working groove 361 under the reverse action of the second rack 82, and then controls the drive plate 21 on the mating block 362 to rotate along the axis of the fixed plate 20.

[0065] Fourth step: After the angle adjustment is completed, the reciprocating screw 33 drives the repair unit 36 on the threaded seat 34 to move along the length direction of the movable rod 30, and adjusts the position of the repair unit 36 on the threaded seat 34.

[0066] Fifth step: After the adjustment is completed, the electric push rod 63 pushes the drive ring 60 to slide inside the fixed shaft 35, driving the repair shaft 360 to move inside the fixed shaft 35. At this time, the mating block 362 on the repair shaft 360 will slide inside the spiral groove 363. Furthermore, the spiral groove 363 can reversely drive the repair shaft 360 to rotate during the process of moving. When repairing and strengthening the flood discharge tunnel, the repair shaft 360 will rotate and enter the inner wall of the flood discharge tunnel.

[0067] Sixth step: After entering the inner wall of the flood discharge tunnel, start the self-priming pump 72 to convey the repair material inside the storage box 71 into the repair shaft 360. The repair material will enter the cracks of the flood discharge tunnel through the discharge port 73 to repair the cracks, thereby realizing the reinforcement and protection of the flood discharge tunnel.

[0068] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0069] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective reinforcement structure for a reservoir flood discharge tunnel, comprising a support shaft (1), characterized in that: Support rings (10) are installed at both ends of the support shaft (1), and support devices (2) are arranged on the opposite sides of the two support rings (10). Mounting seats (11) are arranged at both ends of the support shaft (1), and walking wheels (12) are slidably arranged on the mounting seats (11); A repair device (3) is also provided on the support shaft (1), the repair device (3) comprising a movable rod (30), an arc-shaped slide groove (31) is provided on the two support rings (10), a connecting block (32) is slidably provided in the slide groove (31), and the movable rod (30) is provided on both the two connecting blocks (32); The movable rod (30) is provided with a driving groove extending therethrough, a reciprocating screw (33) is rotatably mounted in the driving groove, a threaded seat (34) is threadedly mounted on the reciprocating screw (33), a fixed shaft (35) extending therethrough is disposed on the threaded seat (34), and a repair unit (36) is disposed inside the fixed shaft (35); The repair unit (36) comprises a repair shaft (360), a working groove (361) is provided inside the fixed shaft (35), the repair shaft (360) is rotatably and slidably arranged in the working groove (361), a matching block (362) is arranged at the bottom of the repair shaft (360), a spiral groove (363) is provided on the inner wall of the working groove (361), and the matching block (362) is slidably arranged in the spiral groove (363).

2. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 1 is characterized in that: The support device (2) comprises a fixed plate (20), the fixed plate (20) being sleeved on the support shaft (1) on the opposite side of the support ring (10), a driving plate (21) being rotatably arranged on the opposite side of the two fixed plates (20), a plurality of support rods (22) being equidistantly slidably arranged on the fixed plate (20) along its axis, a plurality of arc-shaped guide grooves (23) being opened on the driving plate (21) along its axis, a matching shaft (24) being installed at one end of the support rod (22) close to the support shaft (1), and the matching shaft (24) being slidably arranged in the guide groove (23).

3. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 2 is characterized in that: An arc-shaped abutment plate (40) is hingedly provided at one end of the support rod (22) away from the support shaft (1), and a matching ball (41) is evenly rotatably mounted on the abutment plate (40).

4. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 3 is characterized in that: The support rod (22) is provided with a driving member (5) for rotating with the driving plate (21), the driving member (5) comprising a first gear (50), the two first gears (50) being rotatably arranged on opposite sides of the fixed plate (20), the driving plate (21) being sleeved with a first gear ring (51), the first gear (50) being meshed with the first gear ring (51).

5. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 1, characterized in that: A driving ring (60) is sleeved on the bottom of the repair shaft (360); a sleeve rod (61) is rotatably mounted on the support shaft (1); a support block (62) is slidably mounted on the sleeve rod (61); an electric push rod (63) is connected to the support block (62); a telescopic end of the electric push rod (63) passes through a fixed shaft (35) and is connected to the driving ring (60); a spring telescopic rod (64) is mounted on the threaded seat (34); and the telescopic end of the spring telescopic rod (64) is connected to the support block (62).

6. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 5, characterized in that: A baffle (70) is commonly connected between the two supporting rings (10) below the supporting shaft (1); a storage box (71) is mounted on the baffle (70); a self-priming pump (72) is mounted above the storage box (71); an input end and an output end of the self-priming pump (72) are respectively connected to the storage box (71) and the inside of the repair shaft (360); and a plurality of discharge ports (73) are evenly arranged on the repair shaft (360).

7. The protective reinforcement structure of a reservoir flood discharge tunnel according to claim 1, characterized in that: The supporting ring (10) is provided with a driving unit (8) for driving the connecting block (32) to slide inside the sliding groove (31); the driving unit (8) comprises a driving shaft, the driving shaft being rotatably arranged on the supporting ring (10) through which the connecting block (32) passes; a second gear (81) is mounted on one end of the driving shaft located outside the supporting ring (10); an arc-shaped second rack (82) is provided on the supporting ring (10); the second rack (82) is meshed with the second gear (81).

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