Crack plugging device for hull damage

Abstract

The utility model discloses a crevasse leaking stoppage device for hull damage, and belongs to the field of leaking stoppage devices. The crevasse leaking stoppage device is sequentially sleeved with a first hinge disc, a first sleeve, a second hinge disc, a second sleeve and a stop structure along the main shaft rod from front to back, and the first ends of the first supporting rods and the second supporting rods are all hinged to the first hinge disc and are all arranged around the central axis of the first hinge disc in an annular array mode. The number of the third supporting rods is consistent with that of the first supporting rods, the first end of each third supporting rod is connected with the middle of one first supporting rod, and the second end of each third supporting rod is hinged to the second hinge disc; the flexible shielding cloth covers the opposite sides of the second supporting rods, and the middle of the flexible shielding cloth is fixed to the first hinge disc. The driving mechanism is arranged at the rear end of the main shaft rod and is configured to drive the main shaft rod to move forwards, and the main shaft rod is locked by the stop structure when moving in place. The device is suitable for occasions with large water pressure, can be opened when the water depth is very deep, saves time and labor, can be operated by a single person, and is easy to use.

Description

Technical Field

[0001] The present application relates to the technical field of leak plugging devices, and in particular to a leak plugging device for a damaged hull. Background Art

[0002] When the hull is damaged due to a run-in, collision or external force, the breach needs to be sealed promptly and effectively to prevent a large amount of seawater from seeping into the hull and causing the hull to tilt and sink. The leak-proof umbrella is one of the commonly used leak-proof devices for hull damage. It can meet the needs of leak-proofing breaches within a water pressure of 0.15MPa and a diameter of 100mm to 350mm.

[0003] Existing leak-proof umbrellas need to be opened outward (i.e., opened in the opposite direction of the water flow) for leak-proofing, so they are only suitable for occasions with low water pressure. When there is a breach in the hull, even in just a few seconds, the displacement is very large, especially when the water depth is very deep, such as when the water depth is greater than 10m, the water pressure of the water flowing out of the breach is very large, and the leak-proof umbrella is difficult to push out and open, which is time-consuming and laborious. At the same time, in order to avoid damage to the leak-proof umbrella, the skeleton of the entire leak-proof umbrella must be made very thick, and the umbrella surface must also be particularly thick, so that the overall radial cross-section of the leak-proof umbrella is very large. When using the leak-proof umbrella, at least four to five operators must cooperate in the operation at the same time, and the cabin space is very small, which makes the leak-proof umbrella difficult to use. In addition, the cooperation of multiple people requires advance training and the cultivation of tacit understanding, otherwise it is difficult to complete the leak-proof task in an emergency. Utility Model Content

[0004] The embodiments of the present application provide a device for plugging leaks in damaged hulls, which can solve the problem that existing devices for plugging leaks in damaged hulls are only suitable for occasions with low water pressure, are difficult to push out and open in deep water, are time-consuming and labor-intensive, require multiple people to operate simultaneously, and are difficult to use.

[0005] In order to achieve the above purpose, the technical solution of the embodiment of the utility model is:

[0006] The utility model embodiment provides a device for plugging leaks in a damaged hull, comprising a main shaft rod, a first hinge plate, a first sleeve, a second hinge plate, a second sleeve, a stopping structure, a first support rod, a second support rod, a third support rod, a flexible shielding cloth and a driving mechanism; the first hinge plate, the first sleeve, the second hinge plate, the second sleeve and the stopping structure are sequentially sleeved along the main shaft rod from front to back, the first hinge plate and the first sleeve are fixed to the main shaft rod, the second hinge plate, the second sleeve and the stopping structure can slide axially along the main shaft rod, and the rear port of the second sleeve is sleeved on the stopping structure; the first support rod and the The second support rods each include multiple first support rods and multiple second support rods, the first ends of which are hinged to the first hinge disk, and are arranged in a circular array around the central axis of the first hinge disk; the number of the third support rods is consistent with the number of the first support rods, the first end of each third support rod is connected to the middle part of a first support rod, and the second end is hinged to the second hinge disk; the flexible shielding cloth is arranged on the side of the multiple second support rods that are opposite to each other, and the middle part is fixed to the first hinge disk; the driving mechanism is arranged at the rear end of the main shaft rod, and is configured to drive the main shaft rod to move forward, and the main shaft rod is locked by the stopping structure when it moves into place.

[0007] In a possible implementation, the driving mechanism includes a third sleeve, a locking structure, a positioning plate, an elastic member, a rotating column, and a propulsion member; the front end of the third sleeve is fixedly sleeved on the second sleeve so that the main shaft rod extends into the inner cavity of the third sleeve; the positioning plate is clamped in the middle of the inner cavity of the third sleeve, close to the rear end of the main shaft rod, and can slide along the inner cavity of the third sleeve; the rotating column is arranged in the inner cavity at the rear end of the third sleeve, and is threadedly connected to the third sleeve, and an axial clamping hole is arranged in the middle; one end of the propulsion member is detachably arranged in the axial clamping hole; the elastic member is arranged in the inner cavity of the third sleeve, and both ends abut against the positioning plate and the rotating column; the locking structure is arranged in the middle of the third sleeve, which can lock the positioning plate relative to the third sleeve or unlock the positioning plate to move axially along the third sleeve.

[0008] In one possible implementation, the locking structure includes a rotating cylinder and a stop ball; there are multiple stop balls; a plurality of through holes are arranged in a circumferential array in the middle of the third sleeve, and a stop ball is arranged in each through hole; a circumferential arc groove is arranged on the inner wall of the rotating cylinder, and a radially recessed groove corresponding to the position of the stop ball is arranged in the circumferential array; the rotating cylinder is sleeved on the third sleeve so that one side of the stop ball is clamped in the arc groove.

[0009] In a possible implementation, the rotating drum includes two sub-drums fixed to each other; the circumferential arc groove is provided at the butt joint surfaces of the two sub-drums.

[0010] In a possible implementation, the propulsion member includes a propulsion rod and a handle; the first end of the propulsion rod can be inserted into the clamping hole, and the handle is disposed at the second end.

[0011] In a possible implementation, the first support rod includes a rotating shaft, which is provided with a groove that is recessed inward along its outer surface; a strip hole is provided on the side wall of the groove; and a plurality of recessed holes that are recessed outward from its inner wall surface are provided on the strip hole; the rotating shaft is rotatably set at the first end of the third support rod, and both ends extend out of the third support rod and then are slidably set in the strip hole.

[0012] In a possible implementation, the third support rod includes three support sub-rods hinged in sequence, the first end of the first support sub-rod is connected to the middle of the first support rod, and the second end of the last support sub-rod is hinged to the second hinge plate.

[0013] In a possible implementation, the stopping structure includes a stopping cylinder and a spring sheet; the stopping cylinder is sleeved on the main shaft rod and can slide axially along the main shaft rod, and a plurality of radial recesses are arranged on the inner wall, and the plurality of radial recesses are arranged in a circumferential array along the stopping cylinder; a spring sheet is arranged in each radial recess; the first end of the spring sheet is arranged in the radial recess, and a boss is arranged on the second end facing the main shaft rod; the rear port of the second sleeve is sleeved on the stopping cylinder; a radial annular groove is arranged on the outer wall of the main shaft rod.

[0014] In a possible implementation, the boss is semi-cylindrical; the radial annular groove includes a first surface, a second surface and a third surface arranged in sequence; the first surface is perpendicular to the outer wall of the main shaft rod, the second surface is perpendicular to the first surface, and the third surface forms an obtuse angle with the second surface.

[0015] In a possible implementation, the hull damage breach plugging device further includes a water-breaking cap; the front end of the water-breaking cap is conical and is sleeved on the front ends of the plurality of first support rods.

[0016] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0017] The breach plugging device for a damaged hull provided in an embodiment of the present application, when a breach occurs in the hull, firstly, the breach plugging device of the embodiment of the present application is extended from the inside of the ship to extend the first hinge plate and the part before it into the outside of the ship wall at the breach, and then the driving mechanism arranged at the rear end of the main shaft rod is activated, and the driving mechanism drives the main shaft rod to move forward until the main shaft rod moves into place and is locked by the stop structure. During the forward movement of the main shaft rod, the first hinge plate and the first sleeve remain stationary relative to the main shaft rod, and the second hinge plate, the second sleeve and the stop structure move backward relative to the main shaft rod. Since the second end of each third support rod is hinged to the second hinge plate, the second hinge plate drives the third support rod to move backward relative to the main shaft rod. Since the first end of each third support rod is connected to the middle of a first support rod, the first ends of multiple first support rods are hinged to the first hinge disk, and are arranged in a circular array around the central axis of the first hinge disk, the first end of each third support rod drives the first support rod connected thereto to rotate around the first hinge disk, and the first support rod is extended backward to the side to press against the surface around the breach at the damaged part of the hull. Since multiple first support rods work together to form a supporting force against the surface around the breach, as long as at least two first support rods can be hooked at the breach, the subsequent plugging task can be completed, and there is no restriction on the shape of the breach. Moreover, since the opening direction of the first support rod is the same as the direction of the water flow, the greater the water pressure, the tighter the first support rod fits against the surface around the breach, and the better the fitting and plugging effect. Then, since the first ends of the plurality of second support rods are all hinged to the first hinge plate, and are all arranged in a circular array around the central axis of the first hinge plate, the flexible shielding cloth is arranged on the side opposite to each other of the plurality of second support rods, and the middle part is fixed to the first hinge plate, so that when the breach plugging device is in a closed storage state, the front end of the flexible shielding cloth is recessed from the front end to the rear to form an inner recess. At this time, the water flow enters the inner recess to form an impact force, while the other side of the flexible shielding cloth is not subject to the impact force, forming a dynamic and static pressure difference, so that the second support rod rotates around the first hinge plate and unfolds backward until the front end is against the surface around the breach at the damaged part of the hull, and drives the flexible shielding cloth to open and close the breach, so as to achieve breach plugging. Since the opening direction of the second support rod is the same as the direction of the water flow, the second support rod and the flexible shielding cloth can be opened smoothly and quickly with the help of the impact force of the water flow. For an environment with a greater water pressure, the opening is faster, and the second support rod and the flexible shielding cloth are more tightly fitted to the surface around the breach under the action of the water pressure, so that the plugging effect is better. The opening directions of the first support rod, the second support rod and the flexible shielding cloth of the breach plugging device of the embodiment of the present application are all the same as the direction of water flow and can be opened with the help of water pressure, so that they can be easily opened with time and effort saving. The water pressure is cleverly used to realize automatic leak plugging at the front end, so that the radial cross-section of the device is reduced compared with the existing leak plugging umbrella. After a single person takes the device, he can operate the driving mechanism alone to open the breach plugging device of the embodiment of the present application to complete the breach plugging task, thereby solving the problem of high strength requirements of the flexible shielding cloth and the support rods due to the dynamic impact of opening the leak plugging umbrella. The use is simple and convenient.When the breach needs to be repaired and the breach plugging device needs to be removed, the stop structure unlocks the main shaft rod. At this time, the main shaft rod is pulled backward relative to the second hinge plate and the second sleeve, driving the first support rod, the second support rod, the third support rod and the flexible shielding cloth to move backward, and the entire breach plugging device is closed and stored, which can be reused, saving resources and costs. Due to the structural opening and working principle of the breach plugging device in the embodiment of the present application, the deeper the water depth, the better the plugging effect. It is suitable for scenes with a water depth greater than three meters and a breach width greater than 10 cm and less than 35 cm. Multiple breach plugging devices can also be inserted in a row and combined for long strip breaches with a width of less than 25 cm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a device for plugging leaks in a damaged hull provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a portion of the structure of the drive mechanism provided in the embodiment of the present application Figure 1 ;

[0021] Figure 3 A schematic diagram of a portion of the structure of the drive mechanism provided in the embodiment of the present application Figure 2 ;

[0022] Figure 4 Schematic diagram of the front end structure of the hull damage plugging device provided in the embodiment of the present application Figure 1 ;

[0023] Figure 5 Schematic diagram of the front end structure of the hull damage plugging device provided in the embodiment of the present application Figure 2 ;

[0024] Figure 6 Schematic diagram of the front end structure of the hull damage plugging device provided in the embodiment of the present application Figure 3 ;

[0025] Figure 7 A schematic diagram of a stop structure provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of the structure of the hull breach plugging device provided in the embodiment of the present application after the front end structure is deployed to plug the breach Figure 1 ;

[0027] Fig. 9 A schematic diagram of the structure of the hull breach plugging device provided in the embodiment of the present application after the front end structure is deployed to plug the breach Figure 2 ;

[0028] Fig.10 A schematic diagram of the structure of the hull breach plugging device provided in the embodiment of the present application after the front end structure is deployed to plug the breach Figure 3 .

[0029] Icons: 1-spindle rod; 11-radial annular groove; 111-first surface; 112-second surface; 113-third surface; 2-first hinge plate; 21-first plate body; 22-second plate body; 3-driving mechanism; 31-third sleeve; 32-locking structure; 321-rotating cylinder; 321a-sub-cylinder; 321b-arc groove; 321c-card slot; 322-stop ball; 33-positioning plate; 34-elastic member; 35-rotating column; 351-axial card hole; 3 6-thrusting member; 361-thrusting rod; 362-handle; 4-first sleeve; 5-second hinge plate; 6-second sleeve; 7-stop structure; 71-stop cylinder; 711-radial notch; 72-spring clip; 721-boss; 8-first support rod; 81-groove; 82-strip hole; 83-recessed hole; 84-rotating shaft; 9-second support rod; 10-third support rod; 101-supporting sub-rod; 20-flexible shielding cloth; 30-water-breaking cap; 40-ship wall. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0032] Please refer to Figure 1 As shown, an embodiment of the utility model provides a device for plugging leaks in damaged hulls, comprising a main shaft 1, a first hinge plate 2, a first sleeve 4, a second hinge plate 5, a second sleeve 6, a stopping structure 7, a first support rod 8, a second support rod 9, a third support rod 10, a flexible shielding cloth 20 and a driving mechanism 3.

[0033] Along the main shaft 1 from front to back (such as Figure 1 As shown in the figure, the front refers to the left side, and the rear refers to the right side), the first hinge disc 2, the first sleeve 4, the second hinge disc 5, the second sleeve 6, and the stopping structure 7 are sequentially sleeved, the first hinge disc 2 and the first sleeve 4 are fixed to the main shaft rod 1, the second hinge disc 5, the second sleeve 6, and the stopping structure 7 can slide axially along the main shaft rod 1, and the rear port of the second sleeve 6 is fixed to the stopping structure 7.

[0034] The first support rod 8 and the second support rod 9 each include a plurality of rods, the first ends of the plurality of first support rods 8 and the plurality of second support rods 9 are hinged to the first hinge disk 2, and are arranged in a circular array around the central axis of the first hinge disk 2. The number of third support rods 10 is the same as the number of first support rods 8, the first end of each third support rod 10 is connected to the middle part of a first support rod 8, and the second end is hinged to the second hinge disk 5. The flexible shielding cloth 20 is arranged on the side opposite to each other of the plurality of second support rods 9, and the middle part is fixed to the first hinge disk 2. The driving mechanism 3 is arranged at the rear end of the main shaft rod 1, and is configured to drive the main shaft rod 1 to move forward, and the main shaft rod 1 moves into place and is locked by the stop structure 7.

[0035] like Figure 1As shown, in order to fix the first hinge disk 2, the front end of the main shaft rod 1 is provided with an outer edge ring to limit the first hinge disk 2. The first hinge disk 2 includes a first disk body 21 and a second disk body 22. At the joint of the first disk body 21 and the second disk body 22, a mounting opening is provided at a corresponding position of the first end of each first support rod 8 and each second support rod 9, and a hinge shaft is clamped in the mounting opening. The first end of each first support rod 8 and each second support rod 9 is hinged to the hinge shaft at the corresponding position. Setting the first hinge disk 2 as the first disk body 21 and the second disk body 22 can facilitate the installation of the hinge shaft.

[0036] Similarly, the second hinged plate 5 includes a third plate body and a fourth plate body. At the joint of the third plate body and the fourth plate body, a mounting opening is provided at a position corresponding to the second end of each third support rod 10, and a hinge shaft is clamped in the mounting opening. The second end of each second support rod 9 is hinged to the hinge shaft at a corresponding position. Arranging the second hinged plate 5 as the third plate body and the fourth plate body can facilitate the installation of the hinge shaft.

[0037] The first sleeve 4 can limit the axial position of the first hinge disc 2, and can be separately or integrally provided with the first hinge disc 2. The second sleeve 6 can limit the axial position of the second hinge disc 5, and can be integrally provided with the second hinge disc 5.

[0038] The first support rods 8 can be two, three, four, or the like. Figure 5 and Figure 6 The schematic diagram of the structure with three first support rods 8 is shown. Three first support rods 8 are set to form three support force points along the circumference of the first hinge plate 2. The structure is stable and the cost is low. The entire groove plugging device is light and can be used by one person. When there are three first support rods 8, the second support rods 9 are multiples of the first support rods 8, such as three, six, nine, twelve, etc. Figure 6 The schematic diagram of the structure in which there are nine second support rods 9 is shown. The nine second support rods 9 are divided into three groups, each group has three, and one group of second support rods 9 is arranged between every two first support rods 8, and all the first support rods 8 and second support rods 9 are arranged in a circumferential array along the first hinge plate 2. The arrangement of nine second support rods 9 can ensure that the flexible shielding cloth 20 is smoothly and quickly opened, while the entire groove plugging device is light in weight, and the first hinge plate 2 can also be set to a reasonable size to arrange the first support rods 8 and the second support rods 9 in a circumferential array.

[0039] The breach plugging device for a damaged hull provided in the embodiment of the present application, when a breach occurs in the damaged hull, firstly, the breach plugging device of the embodiment of the present application is used to extend the first hinged plate 2 and the portion before it from the inside of the ship to the outside of the ship wall 40 at the breach, and then the driving mechanism 3 arranged at the rear end of the main shaft 1 is activated, and the driving mechanism 3 drives the main shaft 1 to move forward until the main shaft 1 moves into place and is locked by the stopping structure 7. During the forward movement of the main shaft 1, the first hinged plate 2 and the first sleeve 4 remain stationary relative to the main shaft 1, and the second hinged plate 5, the second sleeve 6 and the stopping structure 7 move backward relative to the main shaft 1 (the second hinged plate 5, the second sleeve 6 and the stopping structure 7 themselves remain stationary). Since the second end of each third support rod 10 is hinged to the second hinged plate 5, the second hinged plate 5 drives the third support rod 10 to move backward relative to the main shaft 1. Figure 8 and Fig.10 As shown, since the first end of each third support rod 10 is connected to the middle of a first support rod 8, the first ends of multiple first support rods 8 are all hinged to the first hinge disk 2, and are all arranged in a circular array around the central axis of the first hinge disk 2. The first end of each third support rod 10 drives the first support rod 8 connected thereto to rotate around the first hinge disk 2, and the first support rod 8 is unfolded backward to the side against the surface around the breach at the damaged part of the hull. Since multiple first support rods 8 work together to form a supporting force against the surface around the breach, as long as at least two first support rods 8 can be hooked at the breach, the subsequent plugging task can be completed, and there is no restriction on the shape of the breach. Moreover, since the opening direction of the first support rod 8 is the same as the water flow direction, the greater the water pressure, the tighter the first support rod 8 fits against the surface around the breach, and the better the fit and plugging effect. Then, since the first ends of the plurality of second support rods 9 are hinged to the first hinge plate 2 and are arranged in a circular array around the central axis of the first hinge plate 2, the flexible shielding cloth 20 is arranged on the mutually opposite sides of the plurality of second support rods 9, and the middle part is fixed to the first hinge plate 2, so that when the breach plugging device is in the closed storage state, Figure 1 , Figure 4 and Figure 5 As shown in FIG. 1 , the flexible shielding cloth 20 is recessed from the front end to the rear end to form an inner notch at the front end. At this time, water flows into the inner notch to form an impact force, such as Figure 1 The front end of the arrow points to the other side of the flexible shielding cloth 20, while the other side is not subject to the impact force, forming a dynamic and static pressure difference, so that the second support rod 9 rotates around the first hinge plate 2 and unfolds backward until the front end abuts against the surface around the breach of the damaged part of the hull, and drives the flexible shielding cloth 20 to open and close the breach. Figures 8 to 10As shown, the breach plugging is achieved. Since the opening direction of the second support rod 9 is the same as the direction of the water flow, the second support rod 9 and the flexible shielding cloth 20 can be opened smoothly and quickly with the help of the impact force of the water flow. For an environment with a greater water pressure, the opening is faster, and the second support rod 9 and the flexible shielding cloth 20 are more tightly fitted to the surface around the breach under the action of the water pressure, so that the plugging effect is better. The opening directions of the first support rod 8, the second support rod 9 and the flexible shielding cloth 20 of the breach plugging device of the embodiment of the present application are all the same as the direction of the water flow, and can be opened with the help of water pressure, so that it can be easily opened with time and effort, and the water pressure is cleverly used to achieve automatic plugging of the front end, so that the radial cross-section of the device is reduced relative to the existing plugging umbrella. After a single person takes the device, he can operate the driving mechanism 3 alone to open the breach plugging device of the embodiment of the present application to complete the breach plugging task, solve the problem that the dynamic impact of the plugging umbrella has high requirements on the strength of the flexible shielding cloth 20 and the support rod, and it is simple and convenient to use. When the breach is repaired and the breach plugging device needs to be removed, the stop structure 7 unlocks the main shaft rod 1. At this time, the main shaft rod 1 is pulled to move backward relative to the second hinge plate 5 and the second sleeve 6, driving the first support rod 8, the second support rod 9, the third support rod 10 and the flexible shielding cloth 20 to move backward, and the entire breach plugging device is folded and stored, which can be reused, saving resources and costs. Due to the structural opening and working principle of the breach plugging device of the embodiment of the present application, the deeper the water depth, the better the plugging effect. It is suitable for scenes with a water depth greater than three meters and a breach width greater than 10 cm and less than 35 cm. Multiple breach plugging devices can also be inserted in a row and combined for long strip breaches with a width of less than 25 cm.

[0040] Depend on Figure 1 and Figure 6 It can be seen that when the general breach plugging device is in a closed and stored state, the surface of the first support rod 8 away from the central axis is a plane, so that after the first support rod 8 is unfolded backwards driven by the third support rod 10, the plane can be firmly pressed against the surface around the breach of the damaged hull.

[0041] like Figures 1 to 3 As shown, the driving mechanism 3 includes a third sleeve 31, a locking structure 32, a positioning plate 33, an elastic member 34, a rotating column 35, and a propulsion member 36. The front end of the third sleeve 31 is sleeved on the second sleeve 6 so that the main shaft rod 1 extends into the inner cavity of the third sleeve 31. The positioning plate 33 is clamped in the middle of the inner cavity of the third sleeve 31 and is adjacent to the rear end of the main shaft rod 1, and can slide along the inner cavity of the third sleeve 31. The rotating column 35 is arranged in the inner cavity at the rear end of the third sleeve 31 and is threadedly connected to the third sleeve 31. An axial clamping hole 351 is arranged in the middle (that is, the clamping hole whose central axis is parallel to the central axis of the rotating column 35, and the axial direction refers to Figure 1OX direction as shown). One end of the pusher 36 is detachably disposed in the axial clamping hole 351. The elastic member 34 is disposed in the inner cavity of the third sleeve 31, and both ends thereof abut against the positioning plate 33 and the rotating column 35. The locking structure 32 is disposed in the middle of the third sleeve 31, and can lock the positioning plate 33 relative to the third sleeve 31 to remain stationary or unlock the positioning plate 33 to move axially along the third sleeve 31.

[0042] like Figure 1 and Figure 2 As shown, the elastic member 34 can be a spring, or of course, elastic rubber, etc. The outer wall of the rotating column 35 is provided with threads, and the inner cavity at the rear end of the third sleeve 31 is provided with threads, so that the rotating column 35 and the third sleeve 31 are threadedly connected.

[0043] When the actual driving mechanism 3 is used, one end of the pusher 36 is set in the axial clamping hole 351, and the pusher 36 is rotated, so that the pusher 36 drives the rotating column 35 to rotate. Since the rotating column 35 is threadedly connected to the inner cavity at the rear end of the third sleeve 31, the rotating column 35 compresses the elastic member 34 during the rotation process, so that the elastic member 34 reserves compression force. When the locking structure 32 unlocks the positioning plate 33, the elastic member 34 releases the compression force to push the positioning plate 33 out, so that the positioning plate 33 slides axially along the third sleeve 31. Since the positioning plate 33 is adjacent to the rear end of the main shaft rod 1, the positioning plate 33 pushes the main shaft rod 1 forward, so that the main shaft rod 1 moves forward until the main shaft rod 1 moves into place and is locked by the stop structure 7. At this time, the pusher 36 can be removed. The movements of the first hinge plate 2, the first sleeve 4, the second hinge plate 5, the second sleeve 6 and the stop structure 7 are as shown above, and will not be repeated here.

[0044] In practice, the front end of the third sleeve 31 can be threadedly connected with the second sleeve 6, so that when the breach plugging device completes plugging, the third sleeve 31 can be removed from the second sleeve 6, reducing the overall length of the breach plugging device in the plugging state, but not occupying too much activity space in the cabin. After the third sleeve 31 is removed, one end of the propeller 36 is set in the axial clamping hole 351 again, and the propeller 36 is rotated in the opposite direction, and the propeller 36 drives the rotating column 35 to rotate in the opposite direction. Since the rotating column 35 is threadedly connected to the inner cavity of the rear end of the third sleeve 31, the rotating column 35 is reset. Then the positioning plate 33 is pushed backward from the front of the third sleeve 31, and then the positioning plate 33 is locked with the locking structure 32 so that it does not move relative to the third sleeve 31, and the driving mechanism 3 is reset, and it can be reused next time. The driving structure of the embodiment of the present application is simple and easy to implement, and a single person can simultaneously operate the locking structure 32 to unlock and rotate the propeller 36, saving time and effort.

[0045] Continue to combine Figures 1 to 3As shown, the locking structure 32 includes a rotating cylinder 321 and a stop ball 322. There are multiple stop balls 322. A plurality of through holes are arranged in a circumferential array in the middle of the third sleeve 31, and a stop ball 322 is arranged in each through hole. A circumferential arc groove 321b is arranged on the inner wall of the rotating cylinder 321, and a clamping groove 321c radially recessed from the inner wall corresponding to the position of the stop ball 322 is arranged in the circumferential array. The rotating cylinder 321 is sleeved on the third sleeve 31 so that one side of the stop ball 322 is clamped in the arc groove 321b.

[0046] The diameter of the stop ball 322 is greater than the thickness of the wall of the third sleeve 31. When the stop ball 322 is disposed in the through hole, a portion of the arc surface of the stop ball 322 extends out of the inner wall of the third sleeve 31, and a portion of the arc surface extends out of the outer wall of the third sleeve 31. Figure 3 As shown, the inner wall of the rotating cylinder 321 is provided with a circumferential arc groove 321b, and the arc surface of the stop ball 322 extending out of the inner wall of the third sleeve 31 is arranged in the circumferential arc groove 321b, so that the rotating cylinder 321 can be sleeved on the third sleeve 31 without falling, and the assembly of the rotating cylinder 321 is realized, and radial pressure toward the central axis is provided to the stop ball 322, so that the arc surface of the stop ball 322 extending out of the outer wall of the third sleeve 31 abuts against the front end surface of the positioning plate 33, thereby realizing that the locking structure 32 locks the positioning plate 33 relative to the third sleeve 31 and does not move. Figure 3 As shown, since the inner wall of the rotating drum 321 is provided with a circumferential array of slots 321c radially recessed from the inner wall corresponding to the position of the stop ball 322, the rotating drum 321 is rotated to align the position of the slots 321c with the position of the stop ball 322, and the stop ball 322 is no longer subjected to the radial pressure of the rotating drum 321, and the stop ball 322 is released to move radially toward the slots 321c, thereby unlocking the positioning plate 33, and the positioning plate 33 can move axially along the third sleeve 31. The movement of the main shaft rod 1 and other components is as described above, and will not be repeated here.

[0047] Of course, in practice, the slot 321c can be set to an arc surface. When the drum 321 needs to be reset and the stop ball 322 continues to lock the positioning plate 33, the drum 321 is rotated so that the slot 321c and the stop ball 322 are no longer aligned. Since the slot 321c is an arc surface, the stop ball 322 can be smoothly withdrawn from the slot 321c and continue to be stuck in the circumferential arc groove 321b, so that it continues to be pressed down by the radial pressure of the drum 321, and part of the arc surface of the stop ball 322 extends out of the interior of the third sleeve 31 to abut against the positioning plate 33. The locking structure 32 of the embodiment of the present application is simple and easy to unlock and lock, and can be reused. In an emergency, a single person can also operate it quickly and stably.

[0048] like Figure 3The schematic diagram of the structure in which there are four stop balls 322 and slots 321c is shown. In practice, the number of stop balls 322 and slots 321c can be two, three, five, six, etc. However, if the number is too small, the stop ball 322 will not have enough limiting force on the positioning plate 33, especially after the elastic member 34 accumulates the compression force, the insufficient limiting force will cause the positioning plate 33 to move forward without restraint prematurely. The unlocking of the stop ball 322 requires that the position of the stop ball 322 is aligned with the position of the slot 321c. If the number of stop balls 322 is too large, the number of slots 321c will increase, and the precision and manufacturing requirements of the rotating drum 321 will increase. Otherwise, the position of some stop balls 322 will not be aligned with the position of the slot 321c, making the positioning plate 33 unable to be unlocked. The stop ball 322 and the slot 321c are set to four, which can not only ensure that the stop ball 322 has enough limiting force on the positioning plate 33, but also reduce the precision and manufacturing requirements of the rotating drum 321.

[0049] like Figure 1 and Figure 2 As shown, the rotating cylinder 321 includes two sub-cylinders 321a fixed to each other. A circumferential arc groove 321b is set at the butt surface of the two sub-cylinders 321a. Since in practice, the arc surface of the inner wall of the stop ball 322 extending out of the third sleeve 31 is set in the circumferential arc groove 321b, the rotating cylinder 321 can be sleeved on the third sleeve 31 without falling, and the assembly of the rotating cylinder 321 is realized. The rotating cylinder 321 is set as two sub-cylinders 321a, and the arc surface of the inner wall of the stop ball 322 extending out of the third sleeve 31 is set in the circumferential arc groove 321b during installation. Specifically, one sub-cylinder 321a is installed in place until half of the circumferential arc groove 321b on the sub-cylinder 321a is against the stop ball 322, and then another sub-cylinder 321a is installed. Then the two sub-cylinders 321a are fixed.

[0050] like Figure 1 As shown, the push member 36 includes a push rod 361 and a handle 362. The first end of the push rod 361 can be inserted into the axial clamping hole 351, and the second end is provided with the handle 362. Further, the radial cross section of the first end of the push rod 361 is a square, and the radial cross section of the axial clamping hole 351 is a corresponding square, so that after the first end of the push rod 361 is inserted into the axial clamping hole 351, the handle 362 is rotated, and the handle 362 drives the push rod 361 to rotate, and the push rod 361 can better transmit the rotational force to the rotating column 35, and the push rod 361 and the rotating column 35 will not slip during the rotation process.

[0051] Combination Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the first support rod 8 includes a rotating shaft 84, and is provided with a groove 81 that is recessed inward along its outer surface. A strip hole 82 is provided on the side wall of the groove 81. The strip hole 82 is provided with a plurality of recessed holes 83 that are recessed outward from its inner wall. Figure 5 and Figure 6 The structure diagram shows three recessed holes 83. The rotating shaft 84 is rotatably arranged at the first end of the third support rod 10, and the two ends extend out of the third support rod 10 and then slide into the strip hole 82, so that the first end of the third support rod 10 can be connected to the middle of the first support rod 8.

[0052] When the main shaft rod 1 moves forward, the second hinge plate 5 and the second sleeve 6 move backward relative to the main shaft rod 1, and the second end of the third support rod 10 is hinged to the second hinge plate 5. The second end of the third support rod 10 moves backward relative to the main shaft rod 1 driven by the second hinge plate 5, and at this time, the first end of the third support rod 10 slides relative to the strip hole 82 of the first support rod 8. When sliding into place, the rotating shaft 84 slides into the nearest concave hole 83 and is stuck. In practice, the apertures of the holes are inconsistent. When the apertures are small, the expansion angles of the multiple first support rods 8 do not need to be so large. The first end of the third support rod 10 has a certain sliding length along the middle of the first support rod 8, which can control the expansion angles of the multiple first support rods 8. The provision of multiple concave holes 83 can make the first end of the third support rod 10 stuck at the most suitable position of the first support rod 8, so that the radial projections of the multiple first support rods 8 after expansion are more suitable for the area of ​​the hole.

[0053] Reference Figure 1 , Figures 4 to 6 As shown, the third support rod 10 includes three support sub-rods 101 hinged in sequence, the first end of the first support sub-rod 101 is connected to the middle of the first support rod 8, and the second end of the last support sub-rod 101 is hinged to the second hinge plate 5. When the main shaft rod 1 moves forward relative to the second sleeve 6, the second hinge plate 5 and the second sleeve 6 move backward relative to the main shaft rod 1, driving the three support sub-rods 101 hinged in sequence on the second hinge plate 5 to be tightened, and the first support sub-rod 101 drives the first support rod 8 to unfold. The third support rod 10 is set as three support sub-rods 101, so that when the breach plugging device provided in the embodiment of the present application is closed and stored, the third support rod 10 has radial margin of activity, so that the distance between the first support rod 8 connected to the first end and the central axis of the main shaft rod 1 can be smaller, and the multiple first support rods 8 are more parallel, so that the first support rod 8 can be stored more compactly, and the volume of the entire breach plugging device after closing and storing is smaller.

[0054] like Figure 7As shown, the stop structure 7 includes a stop cylinder 71 and a spring 72. The stop cylinder 71 is sleeved on the main shaft 1 and can slide axially along the main shaft 1. A plurality of radial notches 711 are arranged on the inner wall of the stop cylinder 71. The plurality of radial notches 711 are arranged in an array along the circumference of the stop cylinder 71. A spring 72 is arranged in each radial notch 711. Figure 7 A schematic structural diagram showing four radial notches 711 and four spring pieces 72 is shown.

[0055] The first end of the spring piece 72 is arranged in the radial recess 711, and the second end is provided with a boss 721 on the side facing the main shaft rod 1. The rear end of the second sleeve 6 is sleeved and fixed on the stop cylinder 71. For example, the rear end of the second sleeve 6 is provided with an internal thread, and the outer wall of the stop cylinder 71 is provided with an external thread. The rear end of the second sleeve 6 is sleeved and fixed on the stop cylinder 71 by threaded connection. A radial annular groove 11 is provided on the outer wall of the main shaft rod 1. The first end of the spring piece 72 can be provided on the side surface of the radial recess 711 corresponding to the inner wall of the stop cylinder 71, or it can be provided on the radial bottom surface, such as Figure 7 The schematic diagram shown is that the first end of the elastic piece 72 is arranged at the intersection of the side surface and the radial bottom surface.

[0056] When the main shaft 1 is pushed forward by the driving mechanism 3, the stopping structure 7 slides backward relative to the main shaft 1, and the stopping cylinder 71 slides to the radial annular groove 11 set on the outer wall of the main shaft 1, the second end of the spring piece 72 is no longer constrained by the radial force of the main shaft 1, and radially bounces into the radial annular groove 11, and the boss 721 extends into the radial annular groove 11, so that the stopping structure 7 and the second sleeve 6 fixed to the stopping structure 7 are fixed, and then the second hinge plate 5 and the third support rod 10 are fixed.

[0057] Continue to refer to Figure 7 As shown, the boss 721 is semi-cylindrical. The radial annular groove 11 includes a first surface 111, a second surface 112 and a third surface 113 arranged in sequence. The first surface 111 is perpendicular to the outer wall of the main shaft 1, the second surface 112 is perpendicular to the first surface 111, and the third surface 113 is at an obtuse angle to the second surface 112. Thus, the radial annular groove 11 can be conveniently clamped to the stop structure 7, and the stop structure 7 can also be conveniently withdrawn from the radial annular groove 11, and the entire breach plugging device can be closed and stored. Specifically, when the breach plugging device needs to be closed and stored, since the boss 721 is cylindrical and the third surface 113 forms an obtuse angle with the second surface 112, the main shaft 1 is moved forward relative to the stopping structure 7, and the boss 721 can be withdrawn from the radial annular groove 11 along the third surface 113. Then the main shaft 1 applies radial pressure to the spring piece 72, and the spring piece 72 retracts radially into the recess. Then, the main shaft 1 is quickly pulled backward to move backward relative to the stopping structure 7, so that the stopping structure 7 slides quickly through the radial annular groove 11 before it has time to radially pop out after passing through the radial annular groove 11. At this time, the front end of the breach plugging device can be reset and closed and stored.

[0058] Of course, when the main shaft rod 1 is folded and stored, an arcuate annular groove is provided on the outer wall of the main shaft rod 1 at a position corresponding to the boss 721, so that the spring piece 72 of the stop structure 7 can be locked at this time, so that the front end of the breach plugging device is limited. Because it is an arcuate annular groove, when the breach plugging device needs to be unfolded, only a small force is needed to make the spring piece 72 escape from the arcuate annular groove and unlock.

[0059] Furthermore, if Figure 1 As shown, the breach plugging device also includes a water-breaking cap 30. The front end of the water-breaking cap 30 is conical and is sleeved on the front ends of the plurality of first support rods 8. The water-breaking cap 30 is made of plastic. In practice, the breach is not necessarily smooth and may scratch the flexible shielding cloth 20. The provision of the water-breaking cap 30 can prevent the flexible shielding cloth 20 and other structures from being scratched when the breach plugging device is extended into the breach. The front end of the water-breaking cap 30 is conical, which can reduce the resistance of water breaking. Generally, the side wall of the water-breaking cap 30 is set to be relatively thin, and when the first support rod 8 and the second support rod 9 are unfolded, the water-breaking cap 30 can be bounced off and fall into the water.

[0060] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0061] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A device for plugging leaks in damaged hulls, characterized in that: It includes a main shaft rod, a first hinge plate, a first sleeve, a second hinge plate, a second sleeve, a stop structure, a first support rod, a second support rod, a third support rod, a flexible shielding cloth and a driving mechanism; The first hinge plate, the first sleeve, the second hinge plate, the second sleeve, and the stop structure are sequentially sleeved along the main shaft from front to back, the first hinge plate and the first sleeve are fixed to the main shaft, the second hinge plate, the second sleeve, and the stop structure can slide relative to each other along the axial direction of the main shaft, and the rear port of the second sleeve is sleeved on the stop structure; The first support rod and the second support rod each include a plurality of rods, and the first ends of the plurality of the first support rods and the plurality of the second support rods are hinged to the first hinge plate, and are arranged in a circular array around the central axis of the first hinge plate; The number of the third support rods is consistent with the number of the first support rods, the first end of each third support rod is connected to the middle part of one of the first support rods, and the second end is hinged to the second hinge plate; The flexible shielding cloth is arranged on one side of the plurality of second support rods facing each other, and the middle part is fixed to the first hinge plate; The driving mechanism is disposed at the rear end of the main shaft and is configured to drive the main shaft to move forward, and the main shaft is moved into position and locked by the stopping structure.

2. The device for plugging leaks in damaged hulls according to claim 1, characterized in that: The driving mechanism includes a third sleeve, a locking structure, a positioning plate, an elastic member, a rotating column, and a propulsion member; The front end of the third sleeve is sleeved and fixed on the second sleeve so that the main shaft rod extends into the inner cavity of the third sleeve; The positioning plate is clamped in the middle of the inner cavity of the third sleeve and close to the rear end of the main shaft rod, and can slide along the inner cavity of the third sleeve; The rotating column is arranged in the inner cavity at the rear end of the third sleeve and is threadedly connected to the third sleeve, and an axial clamping hole is arranged in the middle; One end of the propulsion member is detachably disposed in the axial clamping hole; The elastic member is disposed in the inner cavity of the third sleeve, and both ends thereof abut against the positioning plate and the rotating column; The locking structure is disposed in the middle of the third sleeve, and can lock the positioning plate relative to the third sleeve to remain stationary or unlock the positioning plate to move axially along the third sleeve.

3. The device for plugging leaks in damaged hulls according to claim 2, characterized in that: The locking structure includes a rotating cylinder and a stop ball; There are multiple stop balls; The third sleeve is provided with a plurality of through holes in a circumferential array in the middle part, and one of the stop balls is provided in each through hole; The inner wall of the rotating drum is provided with a circumferential arc groove, and a circumferential array is provided with a radially recessed groove from the inner wall corresponding to the position of the stop ball; The rotating cylinder is sleeved on the third sleeve so that one side of the stop ball is clamped in the arc groove.

4. The device for plugging leaks in damaged hulls according to claim 3, characterized in that: The rotating drum comprises two sub-drums fixed to each other; The circumferential arc groove is arranged at the butt joint surfaces of the two sub-tubes.

5. The device for plugging leaks in damaged hulls according to any one of claims 2 to 4, characterized in that: The propulsion member includes a propulsion rod and a handle; The first end of the pushing rod can be inserted into the clamping hole, and the second end is provided with the handle.

6. The device for plugging leaks in damaged hulls according to claim 1, characterized in that: The first support rod comprises a rotating shaft, and is provided with a groove recessed inwardly along its outer surface; The side wall of the groove is provided with a strip-shaped hole; The strip-shaped hole is provided with a plurality of concave holes which are concave from the inner wall thereof to the outside; The rotating shaft is rotatably arranged at the first end of the third supporting rod, and both ends extend out of the third supporting rod and are slidably arranged in the strip-shaped hole.

7. The device for plugging leaks in damaged hulls according to claim 1 or 6, characterized in that: The third support rod includes three support sub-rods hinged in sequence, the first end of the first support sub-rod is connected to the middle part of the first support rod, and the second end of the last support sub-rod is hinged to the second hinge plate.

8. The device for plugging leaks in damaged hulls according to claim 1, characterized in that: The stopping structure comprises a stopping cylinder and a spring; The stop cylinder is sleeved on the main shaft and can slide axially along the main shaft, and a plurality of radial notches are arranged on the inner wall, and the plurality of radial notches are arranged in an array along the circumference of the stop cylinder; A spring piece is arranged in each of the radial notches; The first end of the spring sheet is arranged in the radial notch, and the second end is provided with a boss on a side facing the main shaft; The rear port of the second sleeve is sleeved and fixed on the stop cylinder; A radial annular groove is arranged on the outer side wall of the main shaft rod.

9. The device for plugging leaks in damaged hulls according to claim 8, characterized in that: The boss is semi-cylindrical; The radial annular groove comprises a first surface, a second surface and a third surface which are arranged in sequence; The first surface is perpendicular to the outer wall of the main shaft, the second surface is perpendicular to the first surface, and the third surface forms an obtuse angle with the second surface.

10. The device for plugging leaks in damaged hulls according to claim 1, characterized in that: Also includes water breaking cap; The front end of the water-breaking cap is conical and is sleeved on the front ends of the plurality of first support rods.

Images