Hydraulic tunnel drainage device

Abstract

The utility model provides a hydraulic tunnel drainage device which comprises a transportation module, a floating module and a drainage module which are arranged from bottom to top. The transportation module is arranged in the tunnel and used for moving in the preset direction; the floating module is slidably connected with the transportation module in the water depth direction and used for bearing the drainage module and making the drainage module float on the water surface when the water level changes. And the drainage module is arranged on the floating module and is used for draining the tunnel. The floating module provides sufficient buoyancy, it is ensured that when the whole device gradually sinks to the deepest water level, the floating module can still stably float on the water surface, then the drainage module is kept on the water surface all the time, and damage caused by water inflow is effectively avoided.

Description

Technical Field

[0001] The utility model relates to a drainage device, in particular to a drainage device for a hydraulic tunnel. Background Art

[0002] A tunnel is an engineering structure buried in the ground. It is a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels and military tunnels. During the construction of tunnels, the need for tunnel ventilation and tunnel drainage arises.

[0003] Currently, most tunnel drainage systems rely on a single or limited number of pumps. Due to the complex tunnel construction environment and limited space, traditional pumps present numerous inconveniences in installation, maintenance, and overhaul. Especially in areas with high water levels, pumps are susceptible to immersion and corrosion, impacting their proper operation and service life. Summary of the Invention

[0004] In order to solve the above problems, the utility model proposes a hydraulic tunnel drainage device.

[0005] The utility model proposes a hydraulic tunnel drainage device, comprising a transport module, a floating module and a drainage module arranged from bottom to top;

[0006] The transport module is arranged in the tunnel and is used to move along a preset direction;

[0007] The floating module is slidably connected to the transport module along the water depth direction, and is used to carry the drainage module and make the drainage module float on the water surface when the water level changes;

[0008] The drainage module is arranged on the floating module and is used to drain the tunnel.

[0009] Preferably, the floating module includes a carrying unit and a buoyancy unit;

[0010] The carrying unit is provided on the transport module and is used to carry the drainage module;

[0011] The interior of the carrying unit is an empty slot, the buoyancy unit is arranged inside the empty slot, and the buoyancy unit is used to provide buoyancy for the drainage module.

[0012] Preferably, the floating module further includes a first limiting unit;

[0013] Two opposite sides of the carrying unit are openings;

[0014] The first limiting units are arranged at the openings on both sides of the carrying unit to prevent the buoyancy unit from falling off from the carrying unit.

[0015] Preferably, the drainage module includes a first conveying unit, a power unit and a second conveying unit;

[0016] One end of the first conveying unit extends into the tunnel, and the other end is connected to the power unit, for conveying water in the tunnel to the power unit;

[0017] The power unit is connected to one end of the second delivery unit and is used to deliver the received water to the second delivery unit;

[0018] The other end of the second delivery unit leads to a preset location and is used to discharge the water from the power unit to the preset location.

[0019] Preferably, the drainage module further includes a rolling unit;

[0020] The rolling unit is provided on the floating module, and the second conveying unit is wound around the rolling unit, and the rolling unit is used to adjust the length of the second conveying unit.

[0021] The drainage module further includes a second limiting unit;

[0022] The second limiting unit is provided on the rolling unit and is used to prevent the rolling unit from rolling on its own.

[0023] Preferably, the second limiting unit includes a clamping subunit and a manipulation subunit;

[0024] The rolling unit is provided with a plurality of limiting holes;

[0025] The clamping subunit is provided on the rolling unit, and the shape and position of the clamping subunit correspond to the limiting hole, and is used to extend into or move out of the limiting hole;

[0026] The manipulation subunit is connected to the clamping subunit and is used to drive the clamping subunit to extend into or move out of the limiting hole.

[0027] Preferably, the control subunit includes a return spring and a handle;

[0028] The return spring is connected to an end of the clamping subunit away from the limiting hole, and is used to push the clamping subunit into the limiting hole;

[0029] The handle is connected to the clamping subunit and is used to drive the clamping subunit extending into the limiting hole to move out under the action of external force.

[0030] Preferably, the drainage module further includes a filtering unit;

[0031] The filtering unit is connected to one end of the first conveying unit extending into the tunnel, and is used for filtering water entering the first conveying unit.

[0032] Preferably, the hydraulic tunnel drainage device further includes a pushing module;

[0033] The pushing module is connected to the transport module and is used to push the transport module to move along the tunnel under the action of external force.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The floating module of the present invention provides sufficient buoyancy to ensure that when the entire device gradually sinks to the deepest water level, the floating module can still float stably on the water surface, thereby allowing the drainage module to always remain above the water surface, effectively preventing the present invention from being damaged by water ingress;

[0036] (2) By winding the second conveying unit on the rolling unit, the utility model can flexibly adjust the overall length of the second conveying unit according to the actual length of the tunnel and the drainage requirements; thus, the utility model can adapt to tunnels of different lengths and smoothly perform drainage operations;

[0037] (3) The carrying unit of the present invention is a hollow slot structure with openings on both sides, which facilitates the removal and placement of the buoyancy unit. At the same time, the provision of the first limiting unit helps prevent the buoyancy unit from sliding out of the carrying unit during use, thereby ensuring the stable operation of the entire device.

[0038] (4) The function of the second limiting unit is to prevent the rolling unit from rolling uncontrollably, thereby preventing the second conveying unit from being accidentally entangled due to rolling and affecting the construction process. At the same time, the setting of the second limiting unit also makes it easier for construction personnel to adjust the length of the second conveying unit according to actual needs, ensuring a smooth and efficient construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0040] Figure 2 It is a left view of the utility model;

[0041] Figure 3 This is an exploded view of the transport module of the present utility model;

[0042] Figure 4 It is a partial cross-sectional view of the present utility model.

[0043] In the figure: 1 is the transport module; 101 is the supporting wheel; 102 is the pushing module; 103 is the limiting slide bar; 2 is the floating module; 201 is the connecting slider; 202 is the buckle; 203 is the empty slot; 204 is the first limiting unit; 3 is the water pump; 301 is the motor; 302 is the power box; 303 is the first conveying unit; 304 is the sewage head; 4 is the buoyancy unit; 5 is the bracket; 501 is the rolling unit; 502 is the limiting hole; 503 is the rotating handle; 6 is the limiter; 601 is the limiting groove; 602 is the return spring; 603 is the limiting pin; 604 is the handle; 7 is the second conveying unit. DETAILED DESCRIPTION

[0044] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0045] like Figure 1 As shown, the utility model proposes a hydraulic tunnel drainage device, comprising a transport module 1, a floating module 2 and a drainage module arranged from bottom to top;

[0046] The transport module 1 is arranged in the tunnel and is used to move along a preset direction;

[0047] The transport module 1 of the present invention is designed to be able to slide along a preset track or the ground in the tunnel to ensure its stability and mobility; the module is made of corrosion-resistant, high-strength materials such as stainless steel or special alloys to adapt to the humid and corrosive environment in the tunnel.

[0048] In other embodiments, the present invention further includes a pushing module 102,

[0049] The pushing module 102 is connected to the transport module 1 and is used to push the transport module 1 to move along the tunnel under the action of external force.

[0050] Furthermore, the transport module 1 may be driven by an electric or hydraulic drive system, and its forward, backward and stop motion may be controlled by a remote controller or a preset program to achieve automated operation.

[0051] The floating module 2 is slidably connected to the transport module 1 along the water depth direction, and is used to carry the drainage module and make the drainage module float on the water surface when the water level changes;

[0052] Preferably, the floating module 2 includes a carrying unit and a buoyancy unit 4;

[0053] The carrying unit is arranged on the transport module 1 and is used to carry the drainage module;

[0054] like Figure 2 As shown, the load-bearing unit of the present invention is designed to be slidably connected to the transport module 1, ensuring that it can be freely raised and lowered according to water level changes. The top of the load-bearing unit is fixedly connected to the drainage module to ensure that the drainage module is stable and reliable.

[0055] The interior of the carrying unit is an empty slot 203 , and the buoyancy unit 4 is arranged inside the empty slot 203 . The buoyancy unit 4 is used to provide buoyancy for the drainage module.

[0056] The buoyancy units 4 of this utility model are made of lightweight, high-strength materials (such as closed-cell foam) or inflatable bladders. They are located within the hollow slots 203 of the support unit to provide sufficient buoyancy for the drainage module. The number and distribution of buoyancy units 4 are designed based on the actual water level and the weight of the drainage module.

[0057] Preferably, the floating module 2 further includes a first limiting unit 204;

[0058] Two opposite sides of the carrying unit are openings;

[0059] The first limiting units 204 are provided at the openings on both sides of the carrying unit to prevent the buoyancy unit 4 from falling off from the carrying unit.

[0060] To prevent the buoyancy unit 4 from falling off the carrying unit, the present invention provides first limiting units 204 at the openings on both sides of the carrying unit, such as metal frames or elastic clips, to facilitate replacement of the buoyancy unit 4 while ensuring its stability during the lifting process.

[0061] The drainage module is arranged on the floating module 2 and is used to drain the tunnel.

[0062] Preferably, Figure 1 As shown, the drainage module includes a first conveying unit 303, a power unit and a second conveying unit 7;

[0063] One end of the first delivery unit 303 extends into the tunnel, and the other end is connected to the power unit, for delivering water in the tunnel to the power unit;

[0064] The first delivery unit 303 of the present invention is a water suction pipe, one end of which extends into the tunnel and the other end is connected to the power unit. Preferably, the water suction pipe is a retractable structure to adapt to different water level changes.

[0065] The power unit is connected to one end of the second delivery unit 7 and is used to deliver the received water to the second delivery unit 7;

[0066] The power unit of the present invention adopts a high-efficiency water pump 3 or a screw pump to pressurize the received water and transmit it to the second delivery unit 7 .

[0067] Preferably, the power unit should be provided with an overload protection device to prevent damage due to overload.

[0068] Preferably, the water pump 3 of the present invention has the characteristics of high efficiency and low noise, ensuring good drainage effect without affecting the environment in the tunnel.

[0069] The other end of the second delivery unit 7 leads to a preset location and is used to discharge the water from the power unit to the preset location.

[0070] The second delivery unit 7 of the present invention can be constructed using a drainage pipe or water tank to discharge the water delivered by the power unit out of the tunnel. The drainage pipe should be designed to be flexible and retractable to accommodate the complex terrain and fluctuating water levels within the tunnel. The water tank should be equipped with an overflow port and a sewage outlet to ensure smooth and safe drainage.

[0071] Preferably, the drainage module further includes a rolling unit 501;

[0072] like Figure 3 As shown, the rolling unit 501 is provided on the floating module 2 , and the second conveying unit 7 is wound around the rolling unit 501 . The rolling unit 501 is used to adjust the length of the second conveying unit 7 .

[0073] The rolling unit 501 of the present invention is installed on the floating module 2 and is used to adjust the length of the second conveying unit 7 (such as a drainage pipe or hose) under different water levels and drainage requirements.

[0074] Preferably, the rolling unit 501 includes a roller or a pulley with a bearing to ensure that the second conveying unit 7 can be smoothly wound and unwound thereon.

[0075] Furthermore, the rolling unit 501 of the present invention includes a bracket 5 or fixing member, through which the roller or pulley is securely mounted on the floating module 2, ensuring that it does not shift during drainage. One end of the second conveying unit 7 is fixedly connected to the power unit, and the other end is wrapped around the rolling unit 501, allowing its length to be easily adjusted according to drainage needs.

[0076] Preferably, the drainage module further includes a second limiting unit;

[0077] like Figure 3 、 Figure 4 As shown, the second limiting unit is provided on the bracket 5 of the rolling unit 501 to prevent the rolling unit 501 from rolling on its own.

[0078] The limiting principle of the second limiting unit of the present invention can be any one of the following examples:

[0079] The second limiting unit can be an elastic lock structure; elastic locks are installed on both sides of the rolling unit 501; when the rolling unit 501 reaches the predetermined position, the elastic lock can automatically snap into the corresponding groove or limiting hole 502 on the rolling unit 501; when unlocking, the elastic lock can be compressed manually or mechanically to release it from the groove or limiting hole 502.

[0080] The second limiting unit can be a magnetic locking structure; magnets are installed at corresponding positions of the rolling unit 501 and the supporting structure (such as the bracket 5); the polarity of the magnet is designed so that when the rolling unit 501 reaches a specific position, the magnetic attraction can firmly lock it in that position; when unlocking, it can be achieved by changing the magnetic field (such as using an electromagnet) or moving the rolling unit 501 to overcome the magnetic force.

[0081] The second limiting unit can be a ratchet locking structure; a ratchet structure is installed on one side of the rolling unit 501, and a pawl is set on the bracket 5; when the rolling unit 501 rolls, the ratchet structure will rotate accordingly, and the pawl is used to lock the ratchet at a specific position, thereby preventing the rolling unit 501 from continuing to roll; when unlocking, the pawl is moved manually or mechanically to release the ratchet.

[0082] The second limiting unit can be a mechanical latch locking structure; latch holes are set on both sides or the bottom of the rolling unit 501; a retractable mechanical latch is installed on the bracket 5, and when the rolling unit 501 reaches the predetermined position, the latch can be manually or automatically inserted into the latch hole; when unlocking, just pull out the latch.

[0083] The second limiting unit can be a rotation locking structure; a rotatable locking device is installed on the top or side of the rolling unit 501; when the rolling unit 501 reaches the desired position, the locking device is rotated to engage with the corresponding part on the bracket 5, thereby locking the rolling unit 501; when unlocking, the lock can be released by rotating the locking device in the opposite direction.

[0084] Preferably, the second limiting unit includes a clamping subunit and a manipulation subunit;

[0085] The rolling unit 501 is provided with a plurality of limiting holes 502;

[0086] The snap-fit ​​subunit is provided on the rolling unit 501 , and the shape and position of the snap-fit ​​subunit correspond to the limiting hole 502 , and is used to extend into or move out of the limiting hole 502 ;

[0087] Preferably, the manipulation subunit is provided on the rolling unit 501 and is connected to the snap-fit ​​subunit, and is used to drive the snap-fit ​​subunit to extend into or move out of the limiting hole 502 .

[0088] The second limiting unit of the present invention can lock the position of the rolling unit 501 to prevent the rolling unit 501 from rolling on its own when no one is operating it, causing the second conveying unit 7 to be accidentally expanded or tightened, thereby ensuring the safety and stability of the drainage process.

[0089] The second limiting unit of the present invention consists of a snap-fit ​​subunit and a control subunit. The snap-fit ​​subunit is designed to match the shape of the limiting hole 502 on the rolling unit 501 and can be inserted into the limiting hole 502 to achieve the locking function. The control subunit is used to control the insertion and removal of the snap-fit ​​subunit, so as to unlock the rolling unit 501 when needed.

[0090] Preferably, the control subunit includes a return spring and a handle 604;

[0091] The return spring is provided on the bracket 5 and is connected to the end of the clamping subunit away from the limiting hole, and is used to push the clamping subunit into the limiting hole 502;

[0092] The handle 604 is connected to the clamping sub-unit and is used to drive the clamping sub-unit inserted into the limiting hole 502 to move out under the action of external force.

[0093] In one embodiment, the rolling unit 501 includes a roller and a bracket 5; both ends of the roller are fixed to the floating module 2 through the bracket 5, the limiting holes 502 are set on the side walls of the two ends of the roller, and the clamping sub-unit is set on the bracket 5, and the extension direction of the clamping sub-unit is consistent with the hole depth direction of each limiting hole 502; and the shape and size of the clamping sub-unit match the limiting hole 502; the return spring is set on the bracket 5 and connected to the clamping sub-unit, and the extension direction of the return spring is consistent with the hole depth direction; the handle 604 is manually operated, and thus it only needs to be connected to the clamping sub-unit; in the utility model, as the roller rotates, the clamping sub-unit can be extended into and out of the corresponding limiting hole 502 under the action of the operating sub-unit.

[0094] Preferably, the drainage module further comprises a filtering unit;

[0095] The filtering unit is connected to one end of the first conveying unit 303 extending into the tunnel, and is used to filter the water entering the first conveying unit 303 .

[0096] In the present invention, the filtration unit is a removable filter, filter, or dirt block 304 made of stainless steel, which has excellent corrosion and wear resistance. The pore size of the filter or screen is determined according to actual needs to ensure that it can effectively filter impurities without affecting drainage efficiency due to excessive clogging.

[0097] The filter unit of the present invention can effectively filter out impurities such as suspended matter and particulate matter in the water, improve the drainage water quality, and prevent impurities and pollutants from entering the first conveying unit 303, causing clogging and affecting drainage operations.

[0098] The following is an embodiment of the present invention:

[0099] like Figure 2 As shown, the transport module 1 of this embodiment has a support wheel 101 rotatably installed below it, and a pushing module 102 is fixedly connected to one end of the transport module 1. By cooperating with the support wheel 101 and the pushing module 102, the transport module 1 can be directly pushed to move inside the tunnel by holding the pushing module 102.

[0100] The transport module 1 is provided with a floating module 2, such as Figure 2 As shown, the transport module 1 is symmetrically fixed with limit slide bars 103 on both sides front and back, and the carrying unit is symmetrically fixed with connecting sliders 201 on both sides front and back. The connecting sliders 201 slide in conjunction with the limit slide bars 103 to slide the floating module 2 and the transport module 1 together, limiting the floating module 2 to move only up and down, thereby preventing the floating module 2 from being directly separated from the transport module 1 after floating on the water surface.

[0101] The carrying unit of the floating module 2 has an empty slot 203 in which the buoyancy unit 4 is fixed. Both sides of the carrying unit are open and both sides of the opening are fixed with first limiting units 204 . The first limiting unit 204 cooperates with the buoyancy unit 4 .

[0102] like Figure 1 As shown, the drainage module is fixedly connected to the floating module 2, and the power unit of the drainage module includes a power box 302, a motor 301 and a water pump 3; the power box 302 is fixedly connected to the carrying unit, the power box 302 is electrically connected to the motor 301, and the output end of the motor 301 is fixedly connected to the water pump 3; one end of the first conveying unit 303 is fixedly connected to the input end of the water pump 3, and the other end of the first conveying unit 303 is fixedly connected to the sewage head 304, as shown in FIG. Figure 3 As shown, a buckle 202 is fixed to one side of the floating module 2 , and the buckle 202 cooperates with the first conveying unit 303 .

[0103] The power box 302 of the utility model is provided with a battery pack, which can provide power to the motor 301. No external cable is required to provide energy for the motor 301. Starting the motor 301 can provide power for the water pump 3. The first conveying unit 303 is fixedly connected to the input end of the water pump 3, and then the accumulated water will be sucked into the water pump 3 from the first conveying unit 303. The sewage head 304 can filter the accumulated water to prevent impurities contained in the accumulated water from directly entering the water pump 3 and causing damage to the turbine in the water pump 3. The buckle 202 cooperates with the first conveying unit 303 to provide certain support for the first conveying unit 303, and at the same time limit the first conveying unit 303 to be in a vertical state.

[0104] The drainage module further includes a rolling unit 501, which includes a roller and a bracket 5. The bracket 5 is symmetrically fixed to the supporting unit of the floating module 2. The roller is connected to the supporting unit via two brackets 5. The second conveying unit 7 is spirally wound around the roller, and one end of the second conveying unit 7 is fixed to the output end of the water pump 3.

[0105] Further, such as Figure 3 As shown, a rotating handle 503 is fixed to the bracket 5 on either side of the drum, and a plurality of limiting holes 502 are provided on the outer surface of the connection between the drum and the bracket 5. At the same time, a limiter 6 is fixed to the side bracket 5. Figure 4 As shown, a limiting groove 601 is provided in the limiter 6, a return spring 602 is fixed in the limiting groove 601, the other end of the return spring 602 is fixed to a limiting pin 603, the limiting pin 603 cooperates with the limiting hole 502, and a handle 604 is fixed to the limiting pin 603. In this embodiment, the limiter 6 is equivalent to a snap-on sub-unit.

[0106] The return spring 602 can provide a certain thrust for the limit pin 603. The limit pin 603 is inserted into the limit hole 502 under the thrust, thereby restricting the rolling unit 501 to prevent the roller from rotating at will. The handle 604 can drive the limit pin 603 to move out of the limit hole 502, releasing the restriction on the roller. At this time, rotating the handle 503 can drive the roller to rotate, making it easier to reel in the second conveying unit 7. It should be noted that when reeling in the second conveying unit 7, one end of the second conveying unit 7 needs to be removed from the output end of the water pump 3.

[0107] The working principle and use process of the present invention are as follows: the device is pushed to the water accumulation place in the hydraulic tunnel. As the device is submerged in the water, when the water level rises to the floating module 2, the buoyancy unit 4 is filled with gas, which will provide sufficient buoyancy for the floating module 2. Then, when the device gradually moves to the deepest water level, the floating module 2 will gradually rise and always float on the water surface, thereby ensuring that the drainage module on the floating module 2 will not be submerged, avoiding the problem of water damage to the equipment. At the same time, the second conveying unit 7 is connected to the output end of the water pump 3, and the water pump 3 is used to pump the accumulated water to the second conveying unit 7 to discharge it into the tunnel. When the tunnel is too short, part of the second conveying unit 7 can be spirally wound onto the rolling unit 501, as shown in FIG. Figure 1 As shown, the length of the second conveying unit 7 can be adjusted to continue draining.

[0108] Compared with the prior art, the present invention has the following beneficial effects:

[0109] (1) The floating module of the present invention provides sufficient buoyancy to ensure that when the entire device gradually sinks to the deepest water level, the floating module can still float stably on the water surface, thereby allowing the drainage module to always remain above the water surface, effectively preventing the present invention from being damaged by water ingress;

[0110] (2) By winding the second conveying unit on the rolling unit, the utility model can flexibly adjust the overall length of the second conveying unit according to the actual length of the tunnel and the drainage requirements; thus, the utility model can adapt to tunnels of different lengths and smoothly perform drainage operations;

[0111] (3) The carrying unit of the present invention is a hollow slot structure with openings on both sides, which facilitates the removal and placement of the buoyancy unit. At the same time, the provision of the first limiting unit helps prevent the buoyancy unit from sliding out of the carrying unit during use, thereby ensuring the stable operation of the entire device.

[0112] (4) The function of the second limiting unit is to prevent the rolling unit from rolling uncontrollably, thereby preventing the second conveying unit from being accidentally entangled due to rolling and affecting the construction process. At the same time, the setting of the second limiting unit also makes it easier for construction personnel to adjust the length of the second conveying unit according to actual needs, ensuring a smooth and efficient construction process.

[0113] The above descriptions are merely a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application discloses the preferred embodiments as above, they are not intended to limit the present application. Any technical personnel familiar with the present profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A hydraulic tunnel drainage device, characterized in that: It includes a transport module, a floating module and a drainage module arranged from bottom to top; The transport module is arranged in the tunnel and is used to move along a preset direction; The floating module is slidably connected to the transport module along the water depth direction, and is used to carry the drainage module and make the drainage module float on the water surface when the water level changes; The drainage module is arranged on the floating module and is used to drain the tunnel; The drainage module includes: a first conveying unit, a power unit and a second conveying unit; One end of the first conveying unit extends into the tunnel, and the other end is connected to the power unit, for conveying water in the tunnel to the power unit; The power unit is connected to one end of the second delivery unit and is used to deliver the received water to the second delivery unit; The other end of the second delivery unit leads to a preset location and is used to discharge the water from the power unit to the preset location.

2. The hydraulic tunnel drainage device according to claim 1, characterized in that: The floating module includes a carrying unit and a buoyancy unit; The carrying unit is provided on the transport module and is used to carry the drainage module; The interior of the carrying unit is an empty slot, the buoyancy unit is arranged inside the empty slot, and the buoyancy unit is used to provide buoyancy for the drainage module.

3. The hydraulic tunnel drainage device according to claim 2, characterized in that: The floating module further includes a first limiting unit; Two opposite sides of the carrying unit are openings; The first limiting units are arranged at the openings on both sides of the carrying unit to prevent the buoyancy unit from falling off from the carrying unit.

4. The hydraulic tunnel drainage device according to claim 1, characterized in that: The drainage module further includes a rolling unit; The rolling unit is provided on the floating module, and the second conveying unit is wound around the rolling unit, and the rolling unit is used to adjust the length of the second conveying unit.

5. The hydraulic tunnel drainage device according to claim 4, characterized in that: The drainage module further includes a second limiting unit; The second limiting unit is provided on the rolling unit and is used to prevent the rolling unit from rolling on its own.

6. The hydraulic tunnel drainage device according to claim 5, characterized in that: The second limiting unit includes a clamping subunit and a manipulation subunit; The rolling unit is provided with a plurality of limiting holes; The clamping subunit is provided on the rolling unit, and the shape and position of the clamping subunit correspond to the limiting hole, and is used to extend into or move out of the limiting hole; The manipulation subunit is connected to the clamping subunit and is used to drive the clamping subunit to extend into or move out of the limiting hole.

7. The hydraulic tunnel drainage device according to claim 6, characterized in that: The control subunit includes a return spring and a handle; The return spring is connected to an end of the clamping subunit away from the limiting hole, and is used to push the clamping subunit into the limiting hole; The handle is connected to the clamping subunit and is used to drive the clamping subunit extending into the limiting hole to move out under the action of external force.

8. The hydraulic tunnel drainage device according to any one of claims 1 to 7, characterized in that: The drainage module further includes a filtering unit; The filtering unit is connected to one end of the first conveying unit extending into the tunnel, and is used for filtering water entering the first conveying unit.

9. The hydraulic tunnel drainage device according to any one of claims 1 to 7, characterized in that: Also includes a push module; The pushing module is connected to the transport module and is used to push the transport module to move along the tunnel under the action of external force.

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