CN210600663U

CN210600663U - Leakage stopping device

Info

Publication number: CN210600663U
Application number: CN201921441751.1U
Authority: CN
Inventors: 邱壮扬; 吴小路; 石涵; 唐光盛; 邹哲先; 罗杰龙; 徐国梁
Original assignee: Shenzhen Derun Underwater Engineering Co Ltd
Current assignee: Shenzhen Derun Underwater Engineering Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-22
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a leakage stopping device, which comprises a mounting seat, a leakage stopping piece, an elastic piece and a fastener, wherein the mounting seat is formed with a clamping groove, the clamping groove penetrates through the mounting seat to form a gap, the gap is used for a pipeline to be clamped into the clamping groove, a mounting groove is arranged on the inner wall of the clamping groove, the mounting groove is provided with a groove wall facing the inside of the clamping groove, and the mounting seat is provided with a first through hole penetrating through the groove wall; the leakage blocking piece is arranged in the mounting groove; the elastic part is arranged between the leakage blocking part and the groove wall; the fastener stretches into the first through hole and can move back and forth along the first through hole so as to push the plugging piece to move. The utility model discloses technical scheme can the easy to assemble plugging device.

Description

Leakage stopping device

Technical Field

The utility model relates to a pipeline maintenance technical field, in particular to plugging device.

Background

At present, a leakage point of a submarine pipeline is usually blocked by an underwater robot in cooperation with a leakage blocking device, wherein when the leakage blocking device is installed, in order to prevent the leakage blocking device from deviating from the leakage point of the pipeline or separating from the pipeline, the leakage blocking device is usually held by one robot, so that the leakage blocking device is abutted against the outer peripheral surface of the pipeline, and then the locking mechanism of the leakage blocking device is operated by another robot to lock. So need two robots to install plugging device simultaneously, the operation is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a plugging device, aims at the easy to assemble plugging device.

In order to achieve the above object, the utility model provides a plugging device, include:

the mounting seat is provided with a clamping groove, the clamping groove penetrates through the mounting seat to form a notch, the notch is used for clamping a pipeline into the clamping groove, an installation groove is formed in the inner wall of the clamping groove, the installation groove is provided with a groove wall facing the inside of the clamping groove, and a first through hole penetrating through the groove wall is formed in the mounting seat;

the leakage blocking piece is arranged in the mounting groove;

the elastic piece is arranged between the leakage blocking piece and the groove wall; and the number of the first and second groups,

and the fastening piece extends into the first through hole and can move back and forth along the first through hole so as to push the plugging piece to move.

Optionally, the leakage blocking device further comprises a guide rod, the extending direction of the guide rod is consistent with the moving direction of the leakage blocking piece, and the guide rod is fixed on one of the leakage blocking piece and the mounting seat and is connected with the other in a sliding manner.

Optionally, still be equipped with on the mount pad and run through the second through-hole of cell wall, the guide bar stretches into in the second through-hole and with the leaking stoppage piece is fixed, the one end of keeping away from of guide bar leaking stoppage piece is equipped with spacing portion, spacing portion can with the surface butt of mount pad.

Optionally, the edge of the notch is provided with a guiding convex part, and the guiding convex part is gradually inclined outwards in the direction away from the clamping groove.

Optionally, the mounting groove penetrates through the mounting seat towards the direction of the notch, one guiding convex part is arranged on the mounting seat, the other guiding convex part is arranged on the leakage blocking part, and the distance between the two guiding convex parts is gradually increased in the direction away from the clamping groove.

Optionally, the leakage blocking piece comprises a leakage blocking block and a sealing element, and the sealing element is arranged on the surface of the leakage blocking block, which faces away from the groove wall.

Optionally, the fastener comprises a threaded rod, and the first through hole is a threaded hole.

Optionally, the fastener further comprises a first handle and a universal joint, and two ends of the universal joint are respectively connected with the screw and the first handle.

Optionally, the leaking stoppage device further comprises a second handle, and the second handle is detachably connected with the mounting seat.

Optionally, the plugging device further comprises an anode block and a connecting rod, the connecting rod comprises a first connecting section and two second connecting sections, the first connecting section is U-shaped, two ends of the first connecting section are respectively provided with one of the second connecting sections, the first connecting section is located inside the anode block, and the second connecting section is connected with the mounting seat.

The utility model discloses technical scheme is formed with the draw-in groove through the mount pad, and the draw-in groove runs through the mount pad and forms the breach for the pipeline can follow the breach card and go into the draw-in groove, is equipped with the mounting groove on the inner wall of draw-in groove, locates leaking stoppage piece in the mounting groove, and leaking stoppage piece can be from the mounting groove in towards the draw-in groove internalization, and is equipped with the elastic component between the cell wall of leaking stoppage piece and mounting groove. The elastic piece can promote leaking stoppage piece to the draw-in groove in, when the in-process of draw-in groove is gone into to the pipeline card gradually, pipeline butt leaking stoppage piece for leaking stoppage piece moves towards the mounting groove in, and makes the elastic piece compressed. After the pipeline card goes into the draw-in groove, the elastic component can support the leaking stoppage piece tightly on the pipeline, be equivalent to can fasten the pipeline in the draw-in groove.

In the process of installing the leakage stopping device, the mounting seat is grabbed by a robot hand to be clamped on the pipeline, and after the pipeline is clamped into the clamping groove, the leakage stopping device can be fastened on the pipeline under the action of the elastic piece and the leakage stopping piece. The robot can be moved away from the mounting seat, and then the fastener is operated to further tightly press the plugging piece on the pipeline so as to lock the plugging device on the pipeline. So only need a robot hand can accomplish plugging device's installation, easy operation, simple to operate. And can also set up suitable elastic component through actual need, avoid the elasticity of elastic component too big and lead to being difficult to go into the draw-in groove with the pipeline card to and be difficult to remove the condition of plugging device when the leak stoppage piece squints the leak on the pipeline, further make things convenient for the installation and the adjustment of plugging device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the plugging device of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of the mounting base in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Mounting seat	30	Elastic piece
11	Clamping groove	40	Fastening piece
				12	Mounting groove	41	Screw rod
121	Wall of the tank	42	Universal joint
				13	Gap	43	First handle
14	First through hole	50	Guide rod
				15	Second through hole	51	Limiting part
16	Guide projection	60	Second handle
				20	Leakage blocking piece	70	Anode block
21	Leakage block	80	Connecting rod
				22	Sealing element

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a plugging device for leak on the shutoff pipeline.

In the embodiment of the present invention, as shown in fig. 1 to 3, the leakage blocking device includes a mounting seat 10, a leakage blocking member 20, an elastic member 30 and a fastening member 40, wherein the mounting seat 10 is formed with a clamping groove 11, the clamping groove 11 penetrates through the mounting seat 10 to form a notch 13, the notch 13 is used for clamping a pipeline into the clamping groove 11, an installation groove 12 is disposed on an inner wall of the clamping groove 11, the installation groove 12 has a groove wall 121 facing the inside of the clamping groove 11, and the mounting seat 10 is provided with a first through hole 14 penetrating through the groove wall 121; the leakage blocking piece 20 is arranged in the mounting groove 12; the elastic element 30 is arranged between the leakage blocking element 20 and the groove wall 121; the fastener 40 extends into the first through hole 14 and is capable of moving back and forth along the first through hole 14 to push the leakage blocking member 20 to move.

Specifically, the slot 11 penetrates through the mounting seat 10 along the thickness direction of the mounting seat 10, and one side of the slot 11 also penetrates through the mounting seat 10 along the width direction of the mounting seat 10 to form the notch 13, and the width direction of the mounting seat 10 is perpendicular to the thickness direction of the mounting seat 10, that is, the mounting seat 10 is in a "U" shape. The tubing can thus be snapped into the card slot 11 through the notch 13. The card slot 11 may be square, cylindrical, or elliptic cylindrical. In this embodiment, the slot 11 is cylindrical, that is, the inner wall of the slot 11 is arc-shaped, and the radius of the arc of the inner wall of the slot 11 is greater than or equal to the radius of the outer surface of the pipeline.

The leakage blocking member 20 is slidably connected to the mounting seat 10 and can move from the inside of the mounting groove 12 to the inside of the card slot 11. The surface of the leakage blocking piece 20 departing from the groove wall 121 is an arc surface and is abutted to the pipeline, and the arc radius of the surface of the leakage blocking piece 20 departing from the groove wall 121 is larger than or equal to the radius of the outer surface of the pipeline.

The elastic member 30 may be a spring, a rubber member or a spring, etc. In this example. The elastic member 30 is a spring, and the elastic member 30 abuts against the leakage blocking member 20 and the groove wall 121, respectively. Before the plugging device is installed, the elastic member 30 is in a free state and pushes the plugging member 20 to move into the clamping groove 11, and in the process that the pipeline is gradually clamped into the clamping groove 11, the pipeline is abutted against the plugging member 20, so that the plugging member 20 moves towards the installation groove 12, and meanwhile, the elastic member 30 is compressed. After the pipeline is clamped into the clamping groove 11, the elastic part 30 is in a compressed state, and the elastic part 30 can always abut the leakage blocking part 20 on the pipeline, so that the pipeline can be fastened in the clamping groove 11, and the leakage blocking device is prevented from falling off from the pipeline. Finally, the fastening member 40 is moved towards the plugging member 20 to further tighten the plugging member 20 against the pipeline and to lock the plugging device to the pipeline.

The utility model discloses technical scheme is formed with draw-in groove 11 through mount pad 10, and draw-in groove 11 runs through mount pad 10 and forms breach 13 for the pipeline can be gone into draw-in groove 11 from breach 13 card, is equipped with mounting groove 12 on the inner wall of draw-in groove 11, locates leaking stoppage piece 20 in the mounting groove 12, and leaking stoppage piece 20 can be from mounting groove 12 interior motion towards draw-in groove 11, and is equipped with elastic component 30 between the cell wall 121 of leaking stoppage piece 20 and mounting groove 12. The elastic element 30 can push the leakage blocking element 20 to the clamping groove 11, and when the pipeline is gradually clamped into the clamping groove 11, the pipeline abuts against the leakage blocking element 20, so that the leakage blocking element 20 moves towards the mounting groove 12, and the elastic element 30 is compressed. After the pipeline is clamped into the clamping groove 11, the elastic element 30 can tightly press the leakage blocking element 20 against the pipeline, which is equivalent to fastening the pipeline in the clamping groove 11.

In the process of installing the leakage stopping device, the mounting seat 10 is grabbed by a robot hand to be clamped on a pipeline, and after the pipeline is clamped into the clamping groove 11, the leakage stopping device can be fastened on the pipeline under the action of the elastic piece 30 and the leakage stopping piece 20. The robot can now be removed from the mounting block 10 and the fastener 40 operated to further tighten the leak stopper 20 against the pipe to lock the leak stopping device to the pipe. So only need a robot hand can accomplish plugging device's installation, easy operation, simple to operate. And moreover, the proper elastic piece 30 can be arranged according to actual needs, so that the situation that the pipeline is difficult to clamp into the clamping groove 11 due to overlarge elasticity of the elastic piece 30 and the leaking stoppage device is difficult to move when the leaking stoppage piece 20 deviates from a leak on the pipeline is avoided, and the installation and adjustment of the leaking stoppage device are further facilitated.

In this embodiment, the leakage blocking device further comprises a guide rod 50, the extending direction of the guide rod 50 is consistent with the moving direction of the leakage blocking member 20, and the guide rod 50 is fixed on one of the leakage blocking member 20 and the mounting seat 10 and is connected with the other in a sliding manner. Specifically, the surface of leaking stoppage piece 20 towards cell wall 121 is equipped with the screw, be equipped with the external screw thread on guide bar 50, guide bar 50 stretches into the screw and is fixed with leaking stoppage piece 20, and guide bar 50 and mount pad 10 sliding connection, so guide bar 50 can play better guide effect to the motion of leaking stoppage piece 20, guarantees leaking stoppage piece 20 and moves along same direction all the time, avoids leaking stoppage piece 20 to move towards lateral deviation when moving to guarantee the stationarity of leaking stoppage piece 20 motion. Of course. Alternatively, the guide rod 50 may be fixed to the mounting seat 10, and the leaking stoppage element 20 may be slidably connected to the guide rod 50. In addition, in other embodiments, a sliding rail may be disposed on the mounting seat 10, and a sliding groove or the like matching with the sliding rail may be disposed on the plugging member 20.

The structure of the guide rod 50 has various structures, in this embodiment, the mounting seat 10 is further provided with a second through hole 15 penetrating through the groove wall 121, the guide rod 50 extends into the second through hole 15 and is fixed with the plugging member 20, one end of the guide rod 50 far away from the plugging member 20 is provided with a limiting portion 51, and the limiting portion 51 can be abutted against the outer surface of the mounting seat 10. Specifically, the guide rod 50 is detachably connected to the plugging member 20, the plugging member 20 and the limiting portion 51 are respectively located on two opposite sides of the mounting seat 10, the guide rod 50 can slide in the second through hole 15, and the size of the limiting portion 51 is larger than the aperture of the second through hole 15. When the plugging member 20 and the guide rod 50 move towards the inside of the slot 11, the limiting portion 51 can abut against the edge of the second through hole 15, and the guide rod 50 and the plugging member 20 are prevented from being separated from the mounting seat 10. Of course, in other embodiments, sliding grooves may be disposed on two surfaces of the mounting base 10 arranged along the thickness direction thereof, the guiding rod 50 is disposed in a sliding rail, and the like.

In addition, in the present embodiment, the elastic element 30 is sleeved outside the guide rod 50. This effectively fixes the elastic member 30 to prevent the elastic member 30 from falling. In addition, the quantity of guide bars 50 is a plurality of, and a plurality of guide bars 50 are all connected with leaking stoppage piece 20 can be dismantled respectively, so can further improve leaking stoppage piece 20 motion's stability.

In this embodiment, the edge of the notch 13 is provided with a guiding protrusion 16, and the guiding protrusion 16 is gradually inclined outward in a direction away from the card slot 11. Specifically, the guide projection 16 extends from the edge of the notch 13 in a direction away from the card slot 11, and is gradually inclined toward the outside of the card slot 11. The width of the inlet end of the notch 13 is increased, the requirement on the positioning accuracy of the plugging device and the pipeline can be lowered, and the plugging device can be conveniently clamped on the pipeline. The notch 13 has a first edge and a second edge opposite to each other, and the first edge and the second edge may be provided with the guide protrusions 16, or only the first edge or the second edge may be provided with the guide protrusions 16.

In this embodiment, the mounting groove 12 penetrates through the mounting seat 10 in the direction of the notch 13, a guiding protrusion 16 is disposed on the mounting seat 10, another guiding protrusion 16 is disposed on the plugging member 20, and the distance between the two guiding protrusions 16 gradually increases in the direction away from the slot 11. Specifically, the mounting groove 12 penetrates through the surface of the mounting seat 10 where the notch 13 is located, and the first edge is formed on the plugging member 20, that is, the first edge and the second edge are both provided with the guiding convex portion 16, so that no matter the pipeline deviates towards one side of the first edge or one side of the second edge, the guiding convex portion 16 is provided for guiding, and the requirement on the positioning accuracy of the plugging device and the pipeline can be further reduced. When the pipeline abuts against the leakage blocking piece 20, the guide convex part 16 on the leakage blocking piece 20 can move along with the leakage blocking piece 20, which is equivalent to increasing the width of the notch 13, so that the pipeline can be clamped into the clamping groove 11 more easily.

In this embodiment, the plugging member 20 includes a plugging block 21 and a sealing member 22, and the sealing member 22 is disposed on the surface of the plugging block 21 facing away from the groove wall 121. It should be understood that the plugging block 21 is connected to the guide rod 50 and abuts against the fastening member 40, in order to ensure the life of the plugging block 21, the plugging block 21 is usually made of hard material, and since the pipeline is usually made of hard material, it is difficult to ensure a good sealing effect between the plugging member 20 and the pipeline if the hard plugging block 21 is directly abutted against the hard pipeline.

And through being equipped with sealing member 22 at the surface that leaking stoppage piece 21 faced the pipeline, compress tightly leaking stoppage piece 21 when fastener 40, can make sealing member 22 closely laminate between leaking stoppage piece 21 and pipeline, and then can improve the sealed effect between leaking stoppage piece 20 and the pipeline. The material of the sealing element 22 may be any one of nitrile rubber, cloth-sandwiched rubber, polytetrafluoroethylene layer and nylon. For example, when the material of the sealing member 22 is nitrile rubber, the sealing member 22 can have a long service life and an improved sealing effect due to the good oil resistance, good heat resistance, high wear resistance and strong adhesion of the nitrile rubber.

In this embodiment, the fastening member 40 includes a screw 41, and the first through hole 14 is a screw hole. Particularly, the external screw thread on the screw rod 41 matches with the internal screw thread of screw, so through rotating screw rod 41, can promote leaking stoppage piece 20 and support on the pipeline to when screw rod 41 supports tight leaking stoppage piece 20, screw rod 41 can be fixed and locked in the screw, convenient operation, it is fixed firm, need not additionally set up locking mechanism moreover, can simplify leaking stoppage device's structure.

In order to ensure that the screw 41 has high strength and hardness and avoid seizure of the screw 41 after repeated assembly and disassembly, the screw 41 may be subjected to nitriding treatment, carburizing treatment or other heat treatment to improve the strength and hardness. Of course, in other embodiments, the fastening member 40 may also include a straight rod and a limit screw, and a threaded hole is formed through the sidewall of the first through hole 14, so that after the straight rod is pressed against the leakage blocking member 20, the limit screw extends into the threaded hole and presses against the straight rod, thereby locking the screw rod 41. Or the fastening member 40 comprises a straight rod and a limiting pin, a pin hole is arranged on the side wall of the first through hole 14 in a penetrating manner, and the limiting pin extends into the pin hole to be clamped with the straight rod, and the like.

In addition, in this embodiment, the surface of the plugging member 20 facing the groove wall 121 is a plane, that is, the surface of the plugging block 21 facing the groove wall 121 is a plane. It can be understood that when the surface of the plugging block 21 facing the groove wall 121 is an arc surface, the contact area between the plugging block 21 and the screw rod 41 is small, and the local pressure is too high, which easily causes damage to the plugging block 21. In the scheme, the contact area between the screw rod 41 and the leaking stoppage block 21 can be ensured to be larger, so that the surface stress of the leaking stoppage block 21 is more uniform, the leaking stoppage block is not easy to deform, and the service life of the leaking stoppage block 21 can be prolonged.

In this embodiment, the fastening member 40 further includes a first handle 43 and a universal joint 42, and both ends of the universal joint 42 are respectively connected to the screw 41 and the first handle 43. Specifically, the universal joint 42 includes a first joint body rotatably connected to the screw 41, and a second joint body rotatably connected to the first joint body, and the extending direction of the rotational axis of the first joint body is perpendicular to the extending direction of the rotational axis of the second joint body. The first handle 43 is fixed with the second section body, the first handle 43 is in a T shape, the first handle 43 is used for being grabbed by a robot hand, and the first handle 43 is rotated by the robot hand to drive the screw rod 41 to rotate. Therefore, the coaxiality requirement between the robot hand and the screw rod 41 in the installation operation process can be reduced, the screw rod 41 can be conveniently twisted by the robot hand, and the robot can conveniently grab the first handle 43. Of course, the structure of the universal joint 42 is not limited thereto, and in other embodiments, other structures of the universal joint 42 may be employed. In addition, in other embodiments, first handle 43 can be "cross" shaped, etc.

In this embodiment, the plugging device further comprises a second handle 60, and the second handle 60 is detachably connected to the mounting base 10. Specifically, the second handle 60 is arranged on one side of the mounting seat 10 away from the notch 13, and the second handle 60 is used for being grabbed by a robot hand, so that the robot hand can grab the leakage blocking device. It can be understood that sundries such as fishing nets may exist in water, and if the second handle 60 is fixed on the mounting base 10 all the time, the sundries such as fishing nets are easy to be wound on the leakage blocking device, and further the leakage blocking device is easy to loosen and fail. And through can dismantle second handle 60 and mount pad 10 and be connected, after the installation plugging device, can dismantle second handle 60 from mount pad 10, so can reduce the condition emergence that debris such as fishing net twined plugging device.

In this embodiment, the plugging device further includes an anode block 70 and a connection rod 80, the connection rod 80 includes a first connection section (not shown) and two second connection sections (not shown), the first connection section is U-shaped, two ends of the first connection section are respectively provided with one second connection section, the first connection section is located inside the anode block 70, and the second connection section is connected to the mounting base 10. Specifically, the anode block 70 is a sacrificial anode, the connecting rod 80 is a metal member, the connecting rod 80 and the anode block 70 are integrally formed, and the second connecting section is welded to the mounting base 10.

It can be understood that when two independent metal rods are arranged at intervals to connect the mounting seat 10 and the anode block 70, after the anode block 70 on the two metal rods is corroded, a part of the anode block 70 still remains between the two metal rods, and the part of the anode block 70 can directly fall off due to the absence of the connection of the metal rods. And be the U-shaped setting with first linkage segment in this scheme, increased the area of contact of connecting rod 80 with positive pole piece 70 in other words for connecting rod 80 can fully be connected inside positive pole piece 70, and then can make full use of positive pole piece 70, avoid the emergence of above-mentioned problem. Of course, in other embodiments, the first connecting section may be arranged in a "T" shape, and so on.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A leak stoppage device, comprising:

the leakage blocking piece is arranged in the mounting groove;

2. Lost circulation device according to claim 1, further comprising a guide rod extending in the same direction as the movement of the leak blocking member, said guide rod being fixed to one of the leak blocking member and the mounting seat and being slidably connected to the other.

3. The leakage stoppage device as recited in claim 2, wherein the mounting seat is further provided with a second through hole penetrating through the groove wall, the guide rod extends into the second through hole to be fixed with the leakage stoppage member, one end of the guide rod, which is far away from the leakage stoppage member, is provided with a limiting part, and the limiting part can be abutted against the outer surface of the mounting seat.

4. Leak stoppage device according to claim 1, wherein the edge of the notch is provided with a guide projection which is inclined gradually outwards in a direction away from the catching groove.

5. Leakage stoppage device according to claim 4, wherein said mounting groove penetrates said mounting seat in the direction of said notch, said mounting seat is provided with one of said guiding projections, said leakage stoppage member is provided with the other of said guiding projections, and the distance between said two guiding projections is gradually increased in the direction away from said catching groove.

6. Lost circulation device according to claim 1, wherein the lost circulation element comprises a lost circulation block and a sealing element, the sealing element being provided on a surface of the lost circulation block facing away from the tank wall.

7. Lost circulation apparatus as claimed in any one of claims 1 to 6, wherein said fastener comprises a threaded rod and said first through hole is a threaded hole.

8. The lost circulation device of claim 7 wherein the fastener further comprises a first handle and a universal joint, the universal joint having two ends connected to the screw and the first handle, respectively.

9. The leak stopping device of claim 1, further comprising a second handle removably connected to the mounting block.

10. The leak stopping device according to claim 1, further comprising an anode block and a connecting rod, wherein the connecting rod comprises a first connecting section and two second connecting sections, the first connecting section is U-shaped, the two ends of the first connecting section are respectively provided with one second connecting section, the first connecting section is positioned inside the anode block, and the second connecting section is connected with the mounting seat.