Connecting structure of rudder blade observation hole cover

Abstract

The invention relates to the technical field of rudder blade observation hole covers, and discloses a rudder blade observation hole cover connecting structure which comprises a rudder blade body, an observation hole body is formed in the outer surface of the rudder blade body, an observation hole cover plate is arranged in the observation hole body, and a connecting plate is fixedly connected to the inner side of the rudder blade body. A first eye ring is fixedly connected to the outer surface, facing the inner side of the rudder blade body, of the observation hole cover plate, a second eye ring is fixedly connected to the outer surface of the top of the connecting plate, shackles are arranged on the outer surface of the first eye ring and the outer surface of the second eye ring, and a stainless steel chain is fixedly connected between the two shackles. The first eye ring and the second eye ring are arranged to be matched with the stainless steel chain and the shackle to fasten the observation hole cover plate, the problem that the observation hole cover plate is lost when opened for overhaul is avoided, and meanwhile compared with an internal hinge type connecting structure in the prior art, the observation hole cover plate has the advantages of being simple in type, convenient to operate and high in practicability. And the situation that the observation hole cover plate is inconvenient to open due to the fact that the hinge is corroded and stuck is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rudder blade observation hole covers, in particular to a connection structure of a rudder blade observation hole cover. Background Art

[0002] At present, a viewing hole cover is required on one side of the rudder blade on a ship to observe the condition of the rudder stock inside the rudder blade. The outer plate of the rudder blade is generally an arc-shaped structure, and the viewing hole cover is a non-standard part, which is formed together with the outer plate of the rudder blade and has a certain curvature. When the ship is sailing, the seawater flow rate at the rudder blade is very fast, and the viewing hole cover cannot be lost, otherwise it will be very troublesome to remake it.

[0003] In order to prevent loss, according to the prior art, the observation hole cover is generally designed as a hinged structure to prevent the cover from being lost when opened. However, the hinged structure is relatively complicated, and the rudder blade is soaked in water for a long time, and the hinge structure may corrode and become unable to be opened. Therefore, a connection structure of the rudder blade observation hole cover is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a connection structure for a rudder blade observation hole cover to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a connection structure of a rudder blade observation hole cover, comprising a rudder blade body, an observation hole body is opened on the outer surface of the rudder blade body, an observation hole cover plate is arranged inside the observation hole body, a connecting plate is fixedly connected to the inner side of the rudder blade body, a first eye ring is fixedly connected to the outer surface of the observation hole cover plate facing the inner side of the rudder blade body, a second eye ring is fixedly connected to the top outer surface of the connecting plate, the outer surfaces of the first eye ring and the second eye ring are both provided with shackles, and a stainless steel chain is fixedly connected between the two shackles.

[0006] As a further explanation of the present invention, the inner side of the rudder blade body is located outside the observation hole and is fixedly connected to a plurality of pads arranged in a circular array. The outer surfaces of the observation hole cover plate and the plurality of pads are provided with corresponding threaded holes. The threaded holes corresponding to the outer surfaces of the observation hole cover plate and the pads are threadedly connected with cylindrical head hexagon socket bolts.

[0007] As a further explanation of the present invention, the front outer surface of the rudder blade body is fixedly connected to a storage seat, the top inner surface of the storage seat is fixedly connected to a first rotating seat, the outer surface of the first rotating seat is rotatably connected to a support plate, the rear outer surface of the support plate is provided with a storage groove, the interior of the storage groove is rotatably connected to a damping shaft, the outer surface of the damping shaft is fixedly sleeved with a fixing rod, and a movable rod is movably inserted into the interior of the fixing rod.

[0008] As a further explanation of the present invention, the outer surfaces of the fixed rod and the movable rod are provided with limiting holes, the limiting holes on the outer surface of the movable rod are multiple and arranged in a linear array, pin shafts are inserted into the corresponding limiting holes of the fixed rod and the movable rod, and a pin is movably inserted into the axial hole of the pin shaft.

[0009] As a further explanation of the present invention, one end of the movable rod away from the fixed rod is fixedly connected to a second rotating seat, the outer surface of the second rotating seat is rotatably connected to a rotating bar, the outer surface of the rotating bar is fixedly connected to a positioning column, the interior of the storage groove is fixedly connected to a positioning plate near the bottom end, and the outer surface of the positioning plate is provided with a positioning hole that is compatible with the positioning column.

[0010] As a further explanation of the present invention, the observation hole cover plate is cut and formed on the outer plate after the rudder blade body is formed.

[0011] As a further illustration of the present invention, the stainless steel chain has a certain length.

[0012] As a further illustration of the present invention, the gap between the observation hole cover plate and the observation hole body is coated with epoxy resin glue.

[0013] As a further illustration of the present invention, a sealing cover is threadedly connected to the front outer surface of the storage seat via bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In a connection structure of a rudder blade observation hole cover provided by the present invention, a first eye ring and a second eye ring are arranged to cooperate with a stainless steel chain and a shackle to fasten the observation hole cover plate, thereby avoiding the problem of loss when opening for maintenance. At the same time, compared with the internal hinge connection structure in the prior art, it has the characteristics of simple type, easy operation, and no hinge corrosion causing jamming and inconvenience in opening the observation hole cover plate.

[0015] 2. In a connection structure of a rudder blade observation hole cover provided by the present invention, a fixed rod and a movable rod are provided, and the fixed rod and the movable rod are limited in position in cooperation with limiting holes, pin shafts and latch pins, and a positioning column and a positioning plate are provided to support the fixed rod and the movable rod, so that the support plate is supported by the fixed rod and the movable rod to a state parallel to the horizontal plane, and the removed observation hole cover is supported by the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the exploded structure of the observation hole cover plate and its related parts of the present invention; Figure 4 It is a schematic diagram of the stainless steel chain of the present invention and its related structures; Figure 5 This is a schematic diagram of the internal structure of the storage seat of the present invention; Figure 6 This is a schematic diagram of the rear view structure of the support plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 6 Enlarged structural diagram at B in the middle.

[0017] In the figure: 1. rudder blade body; 2. positioning hole; 3. observation hole body; 4. observation hole cover; 5. first eye ring; 6. connecting plate; 7. second eye ring; 8. shackle; 9. stainless steel chain; 10. pad; 11. threaded hole; 12. cylindrical head hexagon socket bolt; 13. storage seat; 14. first rotating seat; 15. support plate; 16. storage groove; 17. fixing rod; 18. movable rod; 19. second rotating seat; 20. rotating bar; 21. positioning column; 22. limiting hole; 23. pin shaft; 24. latch; 25. sealing cover; 26. positioning plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: Please refer to Figure 1-Figure 4The present invention provides a technical solution: a connection structure of a rudder blade observation hole cover, comprising a rudder blade body 1, an observation hole body 3 is opened on the outer surface of the rudder blade body 1, an observation hole cover plate 4 is arranged inside the observation hole body 3, a connecting plate 6 is fixedly connected to the inner side of the rudder blade body 1, a first eye ring 5 is fixedly connected to the outer surface of the observation hole cover plate 4 facing the inner side of the rudder blade body 1, a second eye ring 7 is fixedly connected to the top outer surface of the connecting plate 6, a shackle 8 is arranged on the outer surfaces of the first eye ring 5 and the second eye ring 7, and a stainless steel chain 9 is fixedly connected between the two shackles 8. Specifically, when the observation hole cover plate 4 is opened, the observation hole cover plate 4 is tied by the stainless steel chain 9 to avoid the observation hole cover plate 4 being lost. The stainless steel chain 9 is used to tie the observation hole cover plate 4 inside the connection structure to avoid the problem of losing it when it is opened for maintenance. At the same time, compared with the internal hinge connection structure in the prior art, the connection structure has the characteristics of simple type, convenient operation, and no hinge corrosion causing jamming and inconvenience in opening the observation hole cover plate 4.

[0020] In the present embodiment, a plurality of pads 10 arranged in a circular array are fixedly connected to the inner side of the rudder blade body 1 at the periphery of the observation hole. The outer surfaces of the observation hole cover plate 4 and the plurality of pads 10 are provided with corresponding threaded holes 11. The threaded holes 11 corresponding to the outer surfaces of the observation hole cover plate 4 and the pads 10 are threadedly connected with cylindrical head hexagon socket bolts 12. Specifically, the observation hole cover plate 4 is covered on the observation hole body 3, and the cylindrical head hexagon socket bolts 12 are screwed into the corresponding threaded holes 11 to install the observation hole cover plate 4 and the pads 10.

[0021] In this embodiment, the observation hole cover plate 4 is cut and formed on the outer plate after the rudder blade body 1 is formed, specifically, the fit between the observation hole cover plate 4 and the rudder blade body 1 is ensured.

[0022] In this embodiment, the stainless steel chain 9 has a certain length. Specifically, the stainless steel chain 9 is in a loose state and is not in a tightened state. When the observation hole cover 4 is opened, the stainless steel chain 9 is tightened.

[0023] In this embodiment, the gap between the observation hole cover plate 4 and the observation hole body 3 is coated with epoxy resin glue. Specifically, the epoxy resin glue is used to increase the waterproofness of the gap between the observation hole cover plate 4 and the observation hole body 3. In the specific implementation process, a plurality of pads 10 are first welded on the inner side of the observation hole body 3, and the stainless steel chain 9 is used to connect the first eye ring 5 and the second eye ring 7, so as to connect the cover plate to the connecting plate 6 inside the rudder blade body 1, and then the observation hole cover plate 4 is covered on the observation hole body 3, and the cylindrical head hexagon socket bolts 12 are screwed on. After the installation is completed, epoxy resin glue is filled into the connection between the observation hole cover plate 4 and the observation hole body 3 to increase the waterproofness. When it is necessary to open the observation hole cover plate 4, the cylindrical head hexagon socket bolts 12 are unscrewed, and the observation hole cover plate 4 is opened. The observation hole cover plate 4 is fastened by the stainless steel chain 9 to avoid the loss of the observation hole cover plate 4. The stainless steel chain 9 is used to fasten the observation hole cover plate 4 inside the connection structure to avoid the problem of losing it when it is opened for maintenance. At the same time, compared with the internal hinged connection structure in the prior art, it has the characteristics of simple type, convenient operation, and no hinge corrosion causing jamming and inconvenience in opening the observation hole cover plate 4.

[0024] Embodiment 1: Please refer to Figure 1-Figure 4 The present invention provides a technical solution: a storage seat 13 is fixedly connected to the front outer surface of the rudder blade body 1, a first rotating seat 14 is fixedly connected to the top inner surface of the storage seat 13, a support plate 15 is rotatably connected to the outer surface of the first rotating seat 14, a storage groove 16 is provided on the rear outer surface of the support plate 15, a damping shaft is rotatably connected to the inside of the storage groove 16, a fixing rod 17 is fixedly sleeved on the outer surface of the damping shaft, a movable rod 18 is movably inserted into the inside of the fixing rod 17, specifically, by arranging the damping shaft, the fixing rod 17 can maintain a certain state when not subjected to force, when the fixing rod 17 is stored in the storage groove 16, the fixing rod 17 can be stably in the storage groove 16 without being subjected to external force, and the support plate 15 is supported by the fixing rod 17 and the movable rod 18, and after the observation hole cover 4 is disassembled, the observation hole cover 4 is supported by the support plate 15.

[0025] In this embodiment, limiting holes 22 are provided on the outer surfaces of the fixed rod 17 and the movable rod 18. There are several limiting holes 22 on the outer surface of the movable rod 18 and they are arranged in a linear array. Pins 23 are inserted into the corresponding limiting holes 22 of the fixed rod 17 and the movable rod 18, and a plug 24 is movably inserted into the axial hole of the pin 23. Specifically, the plug 24 and the pin 23 are removed, and the limiting of the movable rod 18 and the fixed rod 17 is released, so that the movable rod 18 moves inside the fixed rod 17, and the overall length between the fixed rod 17 and the movable rod 18 is adjusted. The pin 23 is inserted into the corresponding limiting hole 22, and the plug 24 is inserted into the axial hole of the pin 23 to limit the fixed rod 17 and the movable rod 18.

[0026] In this embodiment, the movable rod 18 is fixedly connected to the second rotating seat 19 at one end away from the fixed rod 17, and the outer surface of the second rotating seat 19 is rotatably connected to a rotating bar 20, and the outer surface of the rotating bar 20 is fixedly connected to a positioning column 21. The interior of the storage groove 16 is fixedly connected to a positioning plate 26 near the bottom end, and the outer surface of the positioning plate 26 is provided with a positioning hole 2 that is compatible with the positioning column 21. Specifically, the rotating bar 20 rotates on the surface of the second rotating seat 19, so that the positioning column 21 is inserted into the positioning hole 2, thereby limiting the support angle and length between the fixed rod 17 and the movable rod 18, so that the fixed rod 17 and the movable rod 18 support the support plate 15.

[0027] In this embodiment, the front outer surface of the storage seat 13 is threadedly connected with a sealing cover 25 by bolts. Specifically, the storage seat 13 is sealed by the sealing cover 25. When the support plate 15 is no longer needed for support, the support plate 15 is stored in the storage seat 13.

[0028] The locking pin 24 is then released to lock the locking cam 25 in place, and the locking cam 25 is released to lock the locking cam 25 in place.

[0029] Working principle: In the actual connection process of the present invention, a plurality of pads 10 are first welded on the inner side of the observation hole body 3, and the stainless steel chain 9 is used to connect the first eye ring 5 and the second eye ring 7, so as to connect the cover plate to the connecting plate 6 inside the rudder blade body 1, and then the observation hole cover plate 4 is covered on the observation hole body 3, and the cylindrical head hexagon socket bolts 12 are screwed on. After the installation is completed, epoxy resin glue is filled into the connection between the observation hole cover plate 4 and the observation hole body 3 to increase the waterproofness. When it is necessary to open the observation hole cover plate 4, the cylindrical head hexagon socket bolts 12 are unscrewed, and the observation hole cover plate 4 is opened. The observation hole cover plate 4 is fastened by the stainless steel chain 9 to avoid the loss of the observation hole cover plate 4. The stainless steel chain 9 is used to fasten the observation hole cover plate 4 inside the connection structure to avoid the problem of losing it when it is opened for maintenance. At the same time, compared with the internal hinged connection structure in the prior art, it has the characteristics of simple type, convenient operation, and no hinge corrosion causing jamming and inconvenience in opening the observation hole cover plate 4.

[0030] Before opening the observation hole cover 4, first open the sealing cover 25, rotate the support plate 15 from a state perpendicular to the horizontal line to a state parallel to the horizontal line, then pull out the fixing rod 17, so that the fixing rod 17 rotates in the storage groove 16, remove the latch 24 and the pin shaft 23, so that the movable rod 18 moves inside the fixing rod 17, adjust the overall length between the fixing rod 17 and the movable rod 18, and adjust the angle of the fixing rod 17, and then rotate the rotating bar 20 on the surface of the second rotating seat 19 so that the positioning column 21 is inserted into the positioning hole 2. At this time, the overall length between the fixing rod 17 and the movable rod 18 is adjusted, and then the pin shaft 23 is inserted into the corresponding limiting hole 22, and the latch 24 is inserted into the axial hole of the pin shaft 23, and the fixing rod 17 and the movable rod 18 are limited, so that the support plate 15 is supported by the fixing rod 17 and the movable rod 18. After the observation hole cover 4 is disassembled, the observation hole cover 4 is supported by the support plate 15.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a rudder blade observation hole cover, comprising a rudder blade body (1), characterized in that: The outer surface of the rudder blade body (1) is provided with an observation hole body (3), the inside of the observation hole body (3) is provided with an observation hole cover plate (4), the inner side of the rudder blade body (1) is fixedly connected with a connecting plate (6), the outer surface of the observation hole cover plate (4) facing the inner side of the rudder blade body (1) is fixedly connected with a first eye ring (5), the top outer surface of the connecting plate (6) is fixedly connected with a second eye ring (7), the outer surfaces of the first eye ring (5) and the second eye ring (7) are both provided with shackles (8), and a stainless steel chain (9) is fixedly connected between the two shackles (8).

2. A connection structure for a rudder blade observation hole cover according to claim 1, characterized in that: A plurality of pads (10) arranged in a circumferential array are fixedly connected to the inner side of the rudder blade body (1) at the periphery of the observation hole, and the outer surfaces of the observation hole cover plate (4) and the plurality of pads (10) are provided with corresponding threaded holes (11), and cylindrical head hexagon socket bolts (12) are threadedly connected to the corresponding threaded holes (11) on the outer surfaces of the observation hole cover plate (4) and the pads (10).

3. The connection structure of the rudder blade observation hole cover according to claim 1, characterized in that: The front outer surface of the rudder blade body (1) is fixedly connected to a storage seat (13), the top inner surface of the storage seat (13) is fixedly connected to a first rotating seat (14), the outer surface of the first rotating seat (14) is rotatably connected to a support plate (15), the rear outer surface of the support plate (15) is provided with a storage groove (16), the interior of the storage groove (16) is rotatably connected to a damping shaft, the outer surface of the damping shaft is fixedly sleeved with a fixing rod (17), and the interior of the fixing rod (17) is movably inserted with a movable rod (18).

4. A connection structure of a rudder blade observation hole cover according to claim 3, characterized in that: The outer surfaces of the fixed rod (17) and the movable rod (18) are both provided with limiting holes (22); the limiting holes (22) on the outer surface of the movable rod (18) are multiple and arranged in a linear array; pin shafts (23) are inserted into the corresponding limiting holes (22) of the fixed rod (17) and the movable rod (18); and a latch pin (24) is movably inserted into the shaft hole of the pin shaft (23).

5. The connection structure of the rudder blade observation hole cover according to claim 3, characterized in that: One end of the movable rod (18) away from the fixed rod (17) is fixedly connected to a second rotating seat (19); the outer surface of the second rotating seat (19) is rotatably connected to a rotating bar (20); the outer surface of the rotating bar (20) is fixedly connected to a positioning column (21); the interior of the storage groove (16) is fixedly connected to a positioning plate (26) near the bottom end; the outer surface of the positioning plate (26) is provided with a positioning hole (2) adapted to the positioning column (21).

6. The connection structure of the rudder blade observation hole cover according to claim 1, characterized in that: The observation hole cover plate (4) is cut and formed on the outer plate of the rudder blade body (1) after it is formed.

7. The connection structure of the rudder blade observation hole cover according to claim 1, characterized in that: The stainless steel chain (9) has a certain length.

8. The connection structure of the rudder blade observation hole cover according to claim 1, characterized in that: The gap between the observation hole cover plate (4) and the observation hole body (3) is coated with epoxy resin glue.

9. The connection structure of the rudder blade observation hole cover according to claim 3, characterized in that: The front outer surface of the storage seat (13) is threadedly connected to a sealing cover (25) via bolts.

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