Nuclear power tunnel marine organism collection device

Abstract

The present invention relates to a marine organism collection device for a nuclear power tunnel, which comprises a moving module, a collection module connected to the moving module, and a conveying module; the collection module includes a main frame, a connecting component, and two flank components. The main frame is arranged in the tunnel and fits with the bottom wall of the tunnel. The two flank components are symmetrically arranged on opposite sides of the main frame. The two flank components are hinged to the main frame through the connecting component. The main frame includes a first side and a second side. The flank components can move between a first position and a second position in an opening and closing manner. When the flank components are in the first position, they are accommodated on the first side of the main frame together. The collection module moves horizontally along the axis of the tunnel under the drive of the moving module, gathering the marine organisms in the tunnel towards the first side of the main frame. The flank components of the present invention can open and close towards the first side of the main frame and are accommodated on the first side of the main frame when in the first position, which greatly facilitates the transfer of the device and passing through narrow channels, and is more convenient to move in the tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear power plant tunnel cleaning, and particularly to a marine organism collection device for nuclear power tunnels. Background Art

[0002] After long-term use of the submarine water intake tunnel, a large number of marine organisms will grow on the inner wall of the tunnel. Excessive marine organisms will reduce the water intake area of the water intake tunnel, thereby having a significant impact on the water intake capacity of the tunnel. The amount of marine organisms in the submarine water intake tunnel is huge and there are many sundries, such as steel bars and stones. After the tunnel is cleaned, the marine organisms are piled up on the arc surface and the middle plane of the inner wall of the tunnel in large quantities.

[0003] Due to the tunnel structure limitations, it is difficult to completely clean the marine organisms on the arc surface of the inner wall of the tunnel, and there are often remnants of marine organisms. At the same time, the bottom of the tunnel is slippery, the passage is narrow, and the passage of large equipment is restricted. The tunnel should also minimize local stress to avoid causing internal cracks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an improved marine organism collection device for nuclear power tunnels in view of the defects existing in the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: to construct a marine organism collection device for nuclear power tunnels, including a moving module, a collection module connected to the moving module and moving with the moving module, and a conveying module for conveying the marine organisms collected by the collection module;

[0006] The collection module includes a main frame, a connecting component, and two wing components. The main frame is arranged in the tunnel and fits with the bottom wall of the tunnel. The two wing components are symmetrically arranged on opposite sides of the main frame. The two wing components are hinged to the main frame through the connecting component. The main frame includes a first side and a second side opposite to the first side. The two wing components can move between a first position and a second position. When the two wing components are in the first position, they are received together on the first side of the main frame;

[0007] The collection module moves horizontally along the axis of the tunnel under the drive of the moving module, and gathers the marine organisms in the tunnel towards the first side of the main frame.

[0008] In some embodiments, the bottom wall of the tunnel includes a bottom plane and arc surfaces connected to both sides of the bottom plane. The two wing components extend radially along the bottom wall of the tunnel. When the two wing components are in the second position, they expand to the end of the arc surface away from the bottom plane.

[0009] In some embodiments, the opening and closing angle of the two flank components is 0 to 180°.

[0010] In some embodiments, at least one floating seat is provided on the moving module, and at least one floating connecting frame is provided on the main frame. The floating seat is movably connected to the floating connecting frame, and the floating connecting frame can move laterally relative to the floating seat.

[0011] In some embodiments, the nuclear power tunnel marine organism collection device further includes a housing connected to the moving module. An accommodation cavity for accommodating the marine organisms is formed in the housing. The housing is provided with a first through port and a second through port opposite to the first through port, and the second side abuts against the first through port.

[0012] In some embodiments, the conveying module includes gathering rollers disposed in the housing for conveying the marine organisms collected by the collection module into the accommodation cavity.

[0013] In some embodiments, the conveying module further includes auxiliary feeding wheels disposed between the gathering rollers and the main frame.

[0014] In some embodiments, the axis of the auxiliary feeding wheel is parallel to the axis of the gathering roller.

[0015] In some embodiments, two first screw conveyors and a drive assembly for providing power to the two first screw conveyors are provided on the main frame. The blades of the two first screw conveyors have opposite spiral directions, and the marine organisms are gathered toward the first side of the main frame in an opposing manner.

[0016] In some embodiments, a second screw conveyor is installed on each flank component. The second screw conveyor is in transmission connection with the first screw conveyor, and the blades of the second screw conveyors on different flank components have opposite spiral directions.

[0017] In some embodiments, each second screw conveyor is in transmission connection with each first screw conveyor through an automatic coupling assembly. The automatic coupling assembly includes two half couplings, two bearings, and two elastic members;

[0018] The first screw conveyor and the second screw conveyor are respectively connected to the two half couplings. The two bearings are respectively installed on the first screw conveyor and the second screw conveyor. The two elastic members are respectively sleeved on the shaft heads of the first screw conveyor and the second screw conveyor;

[0019] One end of each elastic member abuts against the shoulder of the bearing, and the other end abuts against the end face of the half coupling. The half coupling is fitted under the cooperation of the elastic member and the bearing.

[0020] In some embodiments, a third screw conveyor arranged side by side with the first screw conveyor is further provided on the main frame, and the third screw conveyor is closer to the bottom wall of the tunnel than the first screw conveyor.

[0021] In some embodiments, first connectors are provided at both ends of the main frame, and second connectors are provided on each flank assembly. The second connectors are connected to the first connectors through the connection assembly;

[0022] The connection assembly includes a first bracket connected to the first connector, a second bracket connected to the second connector, a pin shaft, and a bracket driving member. The first bracket and the second bracket are hinged through the pin shaft. The bracket driving member is connected to the main frame, and the first bracket and the second bracket rotate around the axis of the pin shaft under the drive of the bracket driving member.

[0023] In some embodiments, each flank assembly includes a flank bracket and support wheels arranged on the flank bracket. The flank bracket is connected to both sides of the main frame through the connection assembly, and the support wheels can roll along the inner wall of the tunnel.

[0024] In some embodiments, the connection assembly includes a first connector, a second connector, a first bracket connected to the first connector, a second bracket connected to the second connector, and a bracket driving member; the first connector is arranged at both ends of the first side of the main frame, and the second connector is arranged at one end of each flank bracket close to the main frame;

[0025] The first end of the first bracket is hinged to the first end of the first connector, and the second end of the first bracket is hinged to the first end of the second bracket; the second end of the second bracket is hinged to the first end of the second connector, and the second end of the first bracket and the second end of the second bracket are hinged through a fixing member;

[0026] One end of the bracket driving member is fixed on the main frame, and the other end of the bracket driving member is connected to the fixing member. The first bracket and the second bracket drive the flank assembly to open and close under the drive of the bracket driving member.

[0027] Implementing the present invention has the following beneficial effects: The marine organism collection device for nuclear power tunnels of the present invention includes a main frame and a wing component. The wing component can clean and peel off marine organisms on the arc surface of the tunnel inner wall, and gather the marine organisms to the middle bottom plane for collection. The wing component can open and close towards the first side of the main frame. The two wing components can open and close between a first position and a second position. When the two wing components are in the first position, they are housed together on the first side of the main frame; by foldably connecting the wing component to the main frame, it greatly facilitates the transportation of the device and passing through narrow channels, and it is more convenient to move in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0029] Figure 1 is a schematic structural diagram of the marine organism collection device for nuclear power tunnels of the present invention;

[0030] Figure 2 is a top view of the marine organism collection device for nuclear power tunnels of the present invention;

[0031] Figure 3 is a cross-sectional view of the marine organism collection device for nuclear power tunnels of the present invention;

[0032] Figure 4 is a schematic structural diagram of the collection module of the present invention when it is in the first position;

[0033] Figure 5 is a cross-sectional view of the housing and the collection module of the present invention;

[0034] Figure 6 is a cross-sectional view of the collection module of the present invention;

[0035] Figure 7 is a schematic structural diagram of the automatic coupling component of the present invention;

[0036] Figure 8 is a schematic structural diagram of the half coupling of the present invention;

[0037] Figure 9 is a top view of the half coupling of the present invention;

[0038] Figure 10 is a cross-sectional view of the scraping component of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] For a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by terms such as "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings and are constructed and operated in a specific orientation, and are only for the convenience of describing the present technical solution, rather than indicating that the indicated devices or elements must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0040] It should also be noted that, unless otherwise clearly specified and defined, terms such as "install", "connect", "join", "fix", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located above the other element, or there may also be one or more intermediate elements. Terms such as "first", "second", "third", etc. are only for the convenience of describing the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are presented in order to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0042] Figures 1 to 3A marine organism collection device for a nuclear power tunnel according to an embodiment of the present invention can be used to collect and clean marine organisms in the water intake tunnel of a nuclear power cold source. The marine organism collection device for a nuclear power tunnel includes a moving module 1, a collection module 2 connected to the moving module 1 and moving with the moving module 1, and a conveying module 3 for conveying the marine organisms collected by the collection module 2. The collection module 2 is connected to the front end of the moving module 1, and the collection module 2 can move laterally relative to the moving module 1. The moving module 1 is the traveling component of the device, providing operating power for the marine organism collection device for a nuclear power tunnel, realizing the traveling function, providing driving force, and providing an installation foundation.

[0043] The collection module 2 includes a main frame 21, a connecting component 22, and two wing components 23. The width of the main frame 21 can be greater than the cross-sectional width of the moving module 1. The main frame 21 is disposed in the tunnel and fits with the bottom wall 100 of the tunnel. The two wing components 23 are symmetrically disposed on opposite sides of the main frame 21. The two wing components 23 are hinged to the main frame 21 through the connecting component 22. The main frame 21 includes a first side 201 and a second side opposite to the first side 201. The two wing components 23 open and close towards the first side 201 of the main frame 21 and perform an opening and closing movement between a first position and a second position. When the two wing components 23 are located at the first position, they are received together on the first side 201 of the main frame 21, that is, when the two wing components 23 are located at the first position, they are in a folded state. The collection module 2 moves horizontally along the axis of the tunnel driven by the moving module 1, gathering the marine organisms located in the tunnel towards the first side 201 of the main frame 21. Among them, the flow direction of the marine organisms is as Figure 2 shown by the arrows in

[0044] As Figure 4 shown, in some embodiments, at least one floating seat frame 11 is provided on the moving module 1, and at least one floating connecting frame 211 is provided on the main frame 21. The number of the floating seat frames 11 corresponds to the number of the floating connecting frames 211. In this embodiment, the number of the floating seat frames 11 is two, and the number of the floating connecting frames 211 is also two. The floating seat frame 11 can be movably connected to the floating connecting frame 211, and the floating connecting frame 211 can move laterally relative to the floating seat frame 11 by a certain distance. In this way, the lateral movement of the collection module 2 and the moving module 1 can be realized. When the moving module 1 deviates, the lateral movement margin needs to be greater than the deviation amount.

[0045] In some embodiments, mounting holes are provided on the floating connecting frame 211. The two floating seat frames 11 are coaxial. Two parallel pin holes are provided on each floating seat frame 11. The collection module 2 is connected by passing a detachable pin shaft through the mounting holes and the pin holes.

[0046] As Figure 1 and Figure 2As shown, the bottom wall 100 of the tunnel includes a bottom plane 101 and curved surfaces 102 connected to both sides of the bottom plane 101. In some embodiments, the two side wing components 23 extend radially along the bottom wall 100 of the tunnel. When the two side wing components 23 are located in the second position, the two side wing components 23 are respectively unfolded to one end of the curved surface 102 away from the bottom plane 101, so that when the device is working, the marine organisms on the entire tunnel bottom wall 100 are thoroughly cleaned.

[0047] The bottom of the main frame 21 is matched with the bottom plane 101 of the tunnel, and the bottom edge of each side wing assembly 23 is matched with the arc surface 102 on the inner wall of the tunnel, ensuring that the collection module 2 has a high degree of fit with the inner wall of the tunnel. The main frame 21 and the two side wing assemblies 23 in the unfolded state can collect the marine organisms on the bottom wall 100 of the entire tunnel and gather them toward the main frame 21 as the mobile module 1 moves. It should be noted that the two side wing assemblies 23 in the unfolded state refer to the situation where the two side wing assemblies 23 are opened from the first position to the second position, and the opening and closing angle is greater than 0°.

[0048] like Figure 5 As shown, the nuclear power tunnel marine organism collection device further includes a shell 4, in which a receiving cavity 40 for receiving marine organisms is formed, one end of the shell 4 is connected to the mobile module 1, and the other end is connected to the collection module 2. The shell 4 is provided with a first opening 41 and a second opening 42 opposite to the first opening 41, the first opening 41 passes through the second opening 42, the second side of the main frame 21 abuts against the first opening 41, and the marine organisms can enter the receiving cavity 40 through the first opening 41.

[0049] In some embodiments, the conveying module 3 includes a gathering roller 31 , which is disposed in the housing 4 to convey the marine organisms collected by the collecting module 2 to the receiving chamber 40 .

[0050] In some embodiments, the conveying module 3 further includes an auxiliary feeding wheel 32, which is disposed between the gathering roller 31 and the main frame 21 to fill the dead space and assist in the forced conveying of marine organisms, and the marine organisms are forced to move backwards by the movement of the blade structure on it. The auxiliary feeding wheel 32 can rotate forward and reversely, and reverse rotation is turned on when the marine organisms are blocked, which can effectively relieve the blockage state. In some embodiments, the axis of the auxiliary feeding wheel 32 is parallel to the axis of the gathering roller 31.

[0051] When the collection module 2 performs the cleaning and gathering operation, the marine organisms on the inner wall of the tunnel are scraped off and accumulated by the flank components 23. After accumulating to a certain amount, the marine organisms are gathered towards the middle by the blades of the first screw conveyor 25 and the second screw conveyor 26 on the collection module 2 and accumulate at the main frame 21. Since there is no rear plate in the middle of the main frame 21, the accumulated marine organisms pour into the receiving cavity 40 in the opposite direction to the movement of the moving module 1 and can be further gathered under the throwing action of the auxiliary feeding wheel 32, as well as improving the conveying efficiency.

[0052] Refer to together Figures 2 to 4 and Figure 6 In some embodiments, each flank component 23 includes a flank bracket 231 and a support wheel 232 disposed on the flank bracket 231. The two flank brackets 231 are connected to both sides of the main frame 21 through a connecting component 22. The support wheel 232 is disposed at one end of the flank bracket 231 away from the main frame 21 and can roll along the inner wall of the tunnel. The support wheel 232 has a certain supporting and guiding effect on the device. When the moving module 1 walks to one side, the support wheel 232 of the flank bracket 231 on the deflected side closely adheres to the tunnel wall. The deviation trend will increase the load-bearing of the support wheel 232, and its reaction force is transmitted to the moving module 1 during walking to balance the steering force of the moving module 1 and enable it to continue walking along the guiding position of the two support wheels 232 and continuously adhere to the tunnel wall to complete the collection of marine organisms. In some embodiments, a pressure sensor is built into the support wheel 232 to detect the pressure condition and provide data reference for the deviation of the moving module 1. When the two flank components 23 are in the first position, each flank bracket 231 is arranged in parallel and side by side with the main frame 21 to reduce the overall volume of the device and facilitate the miniaturization of the device.

[0053] The whole machine is assisted in centering and positioning through the support wheel 232. The flank component 23 can be customized according to the tunnel diameter and bottom structure. When both support wheels 232 are attached to the arc surface 102 of the tunnel, the whole device is located in the middle position of the tunnel, that is, the working position. When the moving module 1 deflects to the left or right, self-adaptation is achieved through the relative offset between the support wheel 232 and the moving module 1, and the device still remains on the center line. During operation, first control the two flank brackets 231 to open to an appropriate position, and then the whole device descends to fit with the tunnel bottom plane 101. Use the support wheel 232 to locate the position of the tunnel wall surface. When the moving module 1 travels with an offset, the device can rely on the tunnel wall for positioning and maintain the working position. The device has good deviation adaptability. In the case of the deviation of the moving module 1, the device can refer to the tunnel wall position to maintain the best working position, so as to reduce the requirement for the traveling accuracy of the moving module 1.

[0054] Refer to together Figure 4 and Figure 10, in some embodiments, a scraping assembly 24 is installed side by side at the rear end of the flank bracket 231, covering the arc surface 102 range of the inner wall of the tunnel to be scraped. The rear end of the flank bracket 231 is on the same side as the second end of the main frame 21. Each scraping assembly 24 includes a floating frame 241 arranged on the flank bracket 231, a telescopic body arranged inside the floating frame 241, and a scraping plate 243 arranged at the bottom of the telescopic body. The scraping plate 243 can have different shapes and is designed to conform to the tunnel arc surface 102.

[0055] The telescopic body includes a guide shaft 2421 and a telescopic member 2422. The telescopic member 2422 can be a compression spring and can be in a pre-compressed state to provide a pre-pressure for the scraping plate 243. One end of the telescopic member 2422 abuts against the inner top wall of the floating frame 241, and the opposite end abuts against the guide shaft 2421. The end of the guide shaft 2421 away from the telescopic member 2422 is connected to the scraping plate 243.

[0056] In some embodiments, the telescopic body further includes a scraping plate 243 mounting bracket. The scraping plate 243 mounting bracket and the end of the guide shaft 2421 away from the telescopic member 2422 can be detachably connected by a connecting member such as a bolt, and the scraping plate 243 is mounted on the scraping plate 243 mounting bracket, so as to facilitate the replacement of the scraping plate 243.

[0057] Under the elastic deformation of the telescopic member 2422, the scraping plate 243 can move back and forth along the axial direction of the guide shaft 2421. When the driving condition changes or the ground is uneven, the scraping assembly 24 can telescopically adjust its own shape to always maintain a state of being in contact with the arc surface 102 on the inner wall of the tunnel. Further, it also ensures that the bottom edge of each flank assembly 23 is always in contact and adapted to the arc surface 102 on the inner wall of the tunnel, can well adapt to the change of driving conditions and the change of position on the tunnel arc surface 102, has good driving control performance, and can well adapt to the narrow passage inside the tunnel.

[0058] As Figure 4 shown, the connecting assembly 22 includes a first connecting member 221, a second connecting member 222, a first bracket 223 connected to the first connecting member 221, a second bracket 224 connected to the second connecting member 222, and a bracket driving member 225; the first connecting member 221 is arranged at the left and right ends of the first side 201 of the main frame 21, the second connecting member 222 is arranged at one end of each flank bracket 231 close to the main frame 21, and the second connecting member 222 is connected to the first connecting member 221. Specifically, the second connecting member 222 and the first connecting member 221 can be connected by a pin shaft.

[0059] The first end of the first bracket 223 is hinged to the first end of the first connecting member 221, and the second end of the first bracket 223 is hinged to the first end of the second bracket 224; the second end of the second bracket 224 is hinged to the first end of the second connecting member 222, and the second end of the first bracket 223 is hinged to the second end of the second bracket 224 through a fixing member. The fixing member can be a swivel pin shaft. Pin holes are respectively provided on the first bracket 223 and the second bracket 224, and the pin shaft is installed in the corresponding pin holes to realize the hinged connection between the first bracket 223 and the second bracket 224. One end of the bracket driving member 225 is fixed to the main frame 21, and the other end is connected to the fixing member. The first bracket 223 can be an I-shaped bracket, and the second bracket 224 can be a curved bracket. The first bracket 223, the second bracket 224, the first connecting member 221, and the second connecting member 222 are jointly connected to form a link structure. The first bracket 223 and the second bracket 224 can rotate around the axis of the pin shaft under the drive of the bracket driving member 225, thereby driving the second connecting member 222 to rotate relative to the first connecting member 221, so that the flank assembly 23 performs an opening and closing movement relative to the main frame 21.

[0060] Understandably, the same connection method as that between the first bracket 223 and the second bracket 224 can also be adopted to realize the hinged connection between the first connecting member 221 and the first bracket 223, and between the second connecting member 222 and the second bracket 224, which will not be repeated here.

[0061] When the device works, the bracket driving member 225 drives to unfold the flank bracket 231, and the flank bracket 231 is arranged to open at a certain angle with the circumferential direction of the device. The rotation axis is in the vertical direction. After the flank bracket 231 rotates horizontally and opens until the outermost support wheel 232 of the flank bracket 231 closely adheres to the inner wall of the tunnel, the bracket driving member 225 locks the position so that the scraping assembly 24 closely adheres to the inner wall surface of the tunnel. In some embodiments, the opening and closing angle range of the two flank assemblies 23 is 0 to 180°, and the flank assembly 23 can open and close to the first side 201 of the main frame 21. That is to say, during the opening and closing process, an included angle is formed between the flank bracket 231 and the main frame 21, and the included angle can be 0 to 180°. The flank assembly 23 can be arranged without an acute included angle with the tunnel axis, and the end face of the flank assembly 23 can be directly perpendicular to the axis, with a simple structure, greatly reducing the manufacturing difficulty and cost. The flank assembly 23 can be folded forward, and the maximum folding angle is 180°, greatly reducing the width of the collection module 2 in the non-working state.

[0062] When the flank assembly 23 affects the transportation of the device in the deployed state or when passing through a narrow passage, the flank assembly 23 can be folded towards the first side 201 of the main frame 21. The flank assembly 23 can rotate around an axis perpendicular to the ground under the drive of the bracket drive 225, disengaging the sides from the left and right end faces of the main frame 21, rotating towards the first side 201 of the main frame 21, and can be folded and housed on the first side 201 of the main frame 21. This greatly facilitates the transfer of the device and passing through narrow passages, making it more convenient to move in the tunnel. Moreover, the structural layout is relatively compact, which is beneficial to the miniaturization of the device.

[0063] Refer to together Figure 2 and Figure 6 , two first screw conveyors 25 are provided on the main frame 21 and a drive assembly for providing power to the two first screw conveyors 25. The blades of the two first screw conveyors 25 have opposite rotation directions, gathering the marine organisms towards the first side 201 of the main frame 21. In some embodiments, the two first screw conveyors 25 can be of an asymmetric structure.

[0064] Combined with Figure 3 , a second screw conveyor 26 is installed on each flank assembly 23. The two second screw conveyors 26 are respectively in transmission connection with the two first screw conveyors 25. The first screw conveyor 25 and the second screw conveyor 26 can be in a series transmission structure. The blades of the second screw conveyors 26 on different flank assemblies 23 have opposite rotation directions to achieve the gathering of marine organisms from both sides to the middle. In some embodiments, the two second screw conveyors 26 can be of a symmetric structure, facilitating the simplification of the structural design, reducing the complexity of the device, reducing the failure rate and compressing costs, etc.

[0065] Such as Figure 3 and Figure 5 shown, in some embodiments, a third screw conveyor 27 is also provided on the main frame 21 and arranged side by side with the first screw conveyor 25. The third screw conveyor 27 can be linked with the first screw conveyor 25. The third screw conveyor 27 is closer to the bottom wall 100 of the tunnel relative to the first screw conveyor 25 to further improve the gathering effect of the marine organisms. The first screw conveyor 25 and the third screw conveyor 27 can be arranged in two parallel axes up and down. The first screw conveyor 25 located in the upper layer can be of a belt-connected shaft type, facilitating linkage with the second screw conveyor 26. Due to the limitation of the tunnel structure, the length of the third screw conveyor 27 located in the lower layer should not be longer than the length of the first screw conveyor 25. The structure of the third screw conveyor 27 can be similar to the structure of the first screw conveyor 25, and the rotation direction of the blades of the third screw conveyor 27 can correspond to the rotation direction of the blades of the first screw conveyor 25, jointly cooperating to gather the marine organisms towards the first side 201 of the main frame 21.

[0066] Refer to together Figure 6and Figure 7 Each second screw conveyor 26 is drivingly connected to each first screw conveyor 25 through an automatic coupling assembly 5. In this embodiment, since the number of the first screw conveyors 25 is two and the number of the second screw conveyors 26 is two, correspondingly, the number of the automatic coupling assemblies should also be two. Each automatic coupling assembly 5 includes two half couplings 51, two bearings 52, and two elastic members 53, and the elastic member 53 can be a compression spring. The first screw conveyor 25 and the second screw conveyor 26 are respectively connected to the two half couplings 51. In some embodiments, the two half couplings 51 are slidably connected and mounted on the shaft heads of the first screw conveyor 25 and the second screw conveyor 26.

[0067] The two bearings 52 are respectively mounted on the first screw conveyor 25 and the second screw conveyor 26. Specifically, a first bearing 52 seat is provided on the main frame 21, a first bearing 52 fixing cylinder is provided on the first bearing 52 seat, a second bearing 52 seat is provided on the flank assembly 23, a second bearing 52 fixing cylinder is provided on the second bearing 52 seat, and the two bearings 52 are respectively mounted on the first bearing 52 fixing cylinder and the second bearing 52 fixing cylinder, so that the first screw conveyor 25 and the second screw conveyor 26 can rotate freely.

[0068] The two compression springs are respectively sleeved on the shaft heads of the first screw conveyor 25 and the second screw conveyor 26. One end of one compression spring abuts against the shoulder of the bearing 52 on the first screw conveyor 25, and the other end of this compression spring abuts against the end face of the half coupling 51 on the first screw conveyor 25; similarly, one end of the other compression spring abuts against the shoulder of the bearing 52 on the second screw conveyor 26, and the other end of this compression spring abuts against the end face of the half coupling 51 on the second screw conveyor 26.

[0069] Refer to together Figures 7 to 9, the half coupling 51 is installed on the shaft heads of the first screw conveyor 25 and the second screw conveyor 26 through structural limiting and can slide a certain distance. The half coupling 51 is a toothed coupling with a special structure, and its teeth have two sizes of structures, and the grooves also have two matching sizes of structures. Each half coupling 51 includes protruding teeth arranged at intervals, and the protruding teeth include at least two first protruding teeth 511 and at least one second protruding tooth 512, and the cross-sectional area of the second protruding tooth 512 is larger than that of the first protruding tooth 511. In this embodiment, the number of the first protruding teeth 511 is two, and the number of the second protruding teeth 512 is one. A groove is formed between two adjacent protruding teeth, and the structure of the groove corresponds to and matches the structure of the protruding teeth, so that the two half couplings 51 can be engaged with each other to achieve shaft coupling. The groove includes a first groove 513 and a second groove 514, the shape of the first groove 513 is adapted to the first protruding tooth 511, and the shape of the second groove 514 is adapted to the second protruding tooth 512.

[0070] After rotating in place, the protruding teeth can be inserted for connection. When the two half couplings 51 are mismatched after being separated, when the angles of the two half couplings 51 are inconsistent, the protruding teeth cannot be inserted, and the two half couplings 51 located on the first screw conveyor 25 and the second screw conveyor 26 push each other away, the compression spring is compressed. When the half coupling 51 at the drive shaft starts to rotate and turns to the engagement angle, the half coupling 51 is engaged under the push of the compression spring, and the shaft coupling is completed. It can be automatically disengaged and engaged without manual intervention to achieve self-positioning.

[0071] As Figure 6 shown, a screw drive housing 6 is provided on the main frame 21, and two screw drive assemblies 61 are installed inside the screw drive housing 6. The screw drive assembly 61 can be a screw drive motor, and the motor is of a hollow connecting sleeve structure. An opening is provided on the screw drive housing 6, and the shaft head of the first screw conveyor 25 can pass through the opening and be connected to the motor. The motor housing is fixed on the screw drive housing 6, and the hollow connecting sleeve inside the motor rotates relative to the motor housing under the action of hydraulic oil, and also drives the connected shaft head to rotate. The shaft head of the first screw conveyor 25 is installed inside the connecting sleeve.

[0072] This device should have good driving and handling performance, small ground pressure on the driving surface, strong grip, the collection device can well adapt to the changes in the bottom surface of the tunnel and the changes caused by driving deviation, and efficiently and cleanly clean the marine organisms on the surface and bottom of the tunnel. It has a simple structure, convenient maintenance, and strong conveying capacity.

[0073] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several modifications and improvements can also be made, which all fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A marine organism collection device for a nuclear power tunnel, characterized in that, It includes a moving module (1), a collection module (2) connected to the moving module (1) and moving along with the moving module (1), and a conveying module (3) for conveying the marine organisms collected by the collection module (2). The collection module (2) includes a main frame (21), a connecting component (22), and two flank components (23). The main frame (21) is disposed in the tunnel and fits against the bottom wall (100) of the tunnel. The two flank components (23) are symmetrically arranged on opposite sides of the main frame (21). The two flank components (23) are hinged to the main frame (21) through the connecting component (22). The main frame (21) includes a first side (201) and a second side opposite to the first side (201). The two flank components (23) can perform an opening and closing movement between a first position and a second position. When the two flank components (23) are in the first position, they are received in the first side (201) of the main frame (21) together. The collection module (2) moves horizontally along the axis of the tunnel under the drive of the moving module (1), and gathers the marine organisms in the tunnel towards the first side (201) of the main frame (21). Two first screw conveyors (25) are provided on the main frame (21), and a drive component for providing power to the two first screw conveyors (25). The blades of the two first screw conveyors (25) rotate in opposite directions, and gather the marine organisms towards the first side (201) of the main frame (21) in an opposing manner. A second screw conveyor (26) is installed on each flank component (23). The second screw conveyor (26) is in transmission connection with the first screw conveyor (25). The blades of the second screw conveyors (26) on different flank components (23) rotate in opposite directions. A third screw conveyor (27) arranged side by side with the first screw conveyor (25) is further provided on the main frame (21). The third screw conveyor (27) is closer to the bottom wall (100) of the tunnel than the first screw conveyor (25).

2. The nuclear power tunnel marine organism collection device according to claim 1, wherein The bottom wall (100) of the tunnel includes a bottom plane (101) and arc surfaces (102) connected to both sides of the bottom plane (101). The two flank components (23) extend radially along the bottom wall (100) of the tunnel. When the two flank components (23) are in the second position, they expand to the end of the arc surface (102) away from the bottom plane (101).

3. The marine organism collection device for a nuclear power tunnel according to claim 1, characterized in that, The opening and closing angle of the two flank components (23) is 0~180°.

4. The nuclear power tunnel marine organism collection device according to claim 1, characterized in that, At least one floating seat frame (11) is provided on the moving module (1), and at least one floating connecting frame (211) is provided on the main frame (21). The floating seat frame (11) is movably connected to the floating connecting frame (211), and the floating connecting frame (211) can move laterally relative to the floating seat frame (11).

5. The nuclear power tunnel marine organism collection device according to claim 1, characterized in that The marine organism collection device for the nuclear power tunnel further includes a housing (4) connected to the moving module (1). An accommodation cavity (40) for accommodating the marine organisms is formed inside the housing (4). The housing (4) is provided with a first through port (41) and a second through port (42) opposite to the first through port (41), and the second side abuts against the first through port (41).

6. The marine organism collection device for nuclear power tunnels according to claim 5, wherein, The conveying module (3) includes gathering rollers (31) which are arranged inside the housing (4) and convey the marine organisms collected by the collection module (2) into the accommodation cavity (40).

7. The nuclear power tunnel marine organism collection device according to claim 6, characterized in that, The conveying module (3) further includes auxiliary feeding wheels (32) which are arranged between the gathering rollers (31) and the main frame (21).

8. The marine organism collection device for a nuclear power tunnel according to claim 7, wherein, The axis of the auxiliary feeding wheel (32) is parallel to the axis of the gathering roller (31).

9. The marine organism collection device for nuclear power tunnels according to claim 1, wherein Each second screw conveyor (26) is in driving connection with each first screw conveyor (25) through an automatic coupling assembly (5). The automatic coupling assembly (5) includes two half couplings (51), two bearings (52) and two elastic members (53); The first screw conveyor (25) and the second screw conveyor (26) are respectively connected to the two half couplings (51). The two bearings (52) are respectively installed on the first screw conveyor (25) and the second screw conveyor (26). The two elastic members (53) are respectively sleeved on the shaft ends of the first screw conveyor (25) and the second screw conveyor (26); One end of each elastic member (53) abuts against the shoulder of the bearing (52), and the other end abuts against the end face of the half coupling (51). The half coupling (51) is fitted under the cooperation of the elastic member (53) and the bearing (52).

10. The nuclear power tunnel marine organism collection device according to claim 1, wherein, First connectors (221) are provided at both ends of the main frame (21). Second connectors (222) are provided on each flank assembly (23). The second connectors (222) are connected to the first connectors (221) through the connection assembly (22); The connection assembly (22) includes a first bracket (223) connected to the first connector (221), a second bracket (224) connected to the second connector (222), a pin shaft and a bracket driving member (225). The first bracket (223) and the second bracket (224) are hinged through the pin shaft. The bracket driving member (225) is connected to the main frame (21). The first bracket (223) and the second bracket (224) rotate around the axis of the pin shaft under the drive of the bracket driving member (225).

11. The nuclear power tunnel marine organism collection device according to claim 1, characterized in that Each flank assembly (23) includes a flank bracket (231) and support wheels (232) arranged on the flank bracket (231). The flank bracket (231) is connected to both sides of the main frame (21) through the connection assembly (22). The support wheels (232) can roll along the inner wall of the tunnel.

12. The nuclear power tunnel marine organism collection device according to claim 11, wherein, The connecting component (22) includes a first connecting member (221), a second connecting member (222), a first bracket (223) connected to the first connecting member (221), a second bracket (224) connected to the second connecting member (222), and a bracket driving member (225); the first connecting member (221) is disposed at both ends of the first side (201) of the main frame (21), and the second connecting member (222) is disposed at one end of each of the flank brackets (231) close to the main frame (21); A first end of the first bracket (223) is hinged to a first end of the first connecting member (221), and a second end of the first bracket (223) is hinged to a first end of the second bracket (224); a second end of the second bracket (224) is hinged to a first end of the second connecting member (222), and a second end of the first bracket (223) is hinged to a second end of the second bracket (224) through a fixing member; One end of the bracket driving member (225) is fixed to the main frame (21), and the other end of the bracket driving member (225) is connected to the fixing member. The first bracket (223) and the second bracket (224) drive the flank assembly (23) to open and close under the drive of the bracket driving member (225).

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