Static sealing structure of hull cabin manhole cover

Abstract

The utility model provides a static sealing structure of a hull cabin manhole cover, which belongs to the technical field of hull cabin manhole covers, and comprises a base, a cover body rotationally connected on the base through a hinge seat, and an operation cover rotationally connected on the cover body, a locking unit is arranged on the operation cover, the locking unit is matched with the base, and the locking unit is matched with the base. The locking unit is used for locking the cover body on the base, a sealing rubber sleeve is fixed to the side wall, close to the base, of the cover body, the sealing rubber sleeve abuts against the base, and the sealing element is arranged on the cover body and used for improving the sealing effect between the cover body and the base. Pressure can be applied to the cover body from two directions by rotating the operation cover, then the sealing piece is extruded to ensure a good sealing state, a traditional locking structure is simplified, operation is easy and convenient, practicability is achieved, and the problem of sealing damage caused by single applied pressure of a traditional structure is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ship body cabin manhole cover, especially to a static sealing structure of ship body cabin manhole cover. BACKGROUND

[0002] The static sealing structure of the ship body cabin manhole cover refers to a structure used to prevent liquid and gas leakage and ensure the sealing of the cabin. When the ship is sailing, the cabin may be subjected to seawater pressure, cabin liquid sloshing pressure, and various gas pressures. The static sealing structure maintains good sealing under these conditions.

[0003] Currently, the edge of the manhole cover usually has a groove for installing a sealing gasket, and a handle or hinge device is designed on the cover body to facilitate opening and closing. However, the traditional handle structure for closing and locking is prone to poor sealing of the manhole cover due to single-point stress compression. Moreover, the sealing structure is easily damaged due to long-term compression, thereby reducing its original sealing effect.

[0004] Chinese patent document No. (CN216611501U) "discloses a ship hatch cover with a sealing structure, relating to the field of ship safety applications. The ship hatch cover with a sealing structure includes a hatch door and a lock. An annular groove is formed on the outer side of the hatch door, and a gas distribution box is arranged inside the annular groove. The gas distribution box is fixedly connected with a gas bag on the outside. A gas guide pipe is fixedly connected to the top of the gas distribution box, and a gas valve is fixedly connected to the top of the gas guide pipe. A gas pump is arranged on the top of the gas valve, and a lock hole is arranged on the top of the lock. The ship hatch cover with a sealing structure can inflate the gas bag through the gas distribution box and the circular groove, extend the gas bag to block the gap between the hatch door and the ship plate, ensure the sealing between the hatch door and the ship body, improve the sealing performance of the hatch door during use, reduce the economic loss and even the casualties caused by poor sealing of the hatch door, and ensure the sealing protection effect of the hatch door." Although the above patent document can ensure the sealing effect of the manhole cover, it cannot solve the problem of poor sealing caused by the locking structure. UTILITY MODEL CONTENTS

[0005] The utility model provides a static sealing structure of ship body cabin manhole cover in view of the deficiency in the prior art. By rotating the operation cover, pressure can be applied to the cover body from two directions, thereby pressing the sealing element to ensure good sealing. The traditional locking structure is simplified, and the operation is simple and practical. The problem of sealing damage caused by single pressure in the traditional structure is solved.

[0006] In order to solve the above technical problems, the utility model discloses a following technical scheme solves the problem that the traditional closed locking handle structure is pressed by single point force, which easily leads to poor sealing effect of the manhole cover and possibly damages the sealing structure, and reduces the sealing performance.

[0007] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A kind of static sealing structure of ship body cabin manhole cover, comprising:

[0009] Base, the base is rotatably connected with cover by hinged seat, further comprising:

[0010] The operating cover rotatably connected with the cover, the operating cover is provided with locking unit, the locking unit is compatible with the base, the locking unit is used to lock the cover on the base, the side wall of the cover close to the base is fixed with sealing rubber sleeve, the sealing rubber sleeve is abutted with the base, and;

[0011] Sealing element arranged on the cover, the sealing element is used to improve the sealing effect between the cover and the base.

[0012] Preferably, the locking unit includes: at least two channels are provided on the cover, the limit plate is slidably connected in the channel, the limit sleeve compatible with the limit plate is fixed on the base, at least two sliding grooves are provided on the operating cover, the sliding rod slidably connected in the sliding groove is fixed on the limit plate, the limit piece compatible with the operating cover is provided, and the limit piece is used to prevent the operating cover from being accidentally rotated.

[0013] Preferably, the limit piece includes: the rotating rod is fixed on the cover, the ratchet wheel is rotatably connected on the rotating rod, the operating rod is rotatably connected on the operating cover, the pawl meshingly connected with the ratchet wheel is fixed on the operating rod, and the rotating wheel is fixed on one end of the operating rod.

[0014] Preferably, the sealing element includes: the groove a is provided on the cover, the sealing ring is fixed in the groove a, the sealing pressing groove compatible with the sealing ring is provided on the base, the groove b is provided on the base, the sealing rubber ring is fixed in the groove b, and the sealing rubber ring is abutted with the cover.

[0015] Preferably, at least two guide rings are fixed on the cover, the operating cover is slidably connected with the outer side wall of the guide ring, and the central axis of the guide ring is arranged in line with the central axis of the operating cover.

[0016] Preferably, the guide pressing ring is fixed on the cover, the operating cover is slidably connected with the inner side wall of the guide pressing ring, and the vertical section of the guide pressing ring is arranged in inverted L shape.

[0017] Preferably, at least two handles are fixed on the operation cover, and a hole is formed in the operation cover and is rotationally connected with the outer surface of the rotating rod.

[0018] Preferably, a side wall of the limiting plate close to the limiting sleeve is provided with an inverted chamfer, at least two guide blocks are fixed on the limiting plate, a guide groove is formed in the cover body and is in communication with the channel, and the guide blocks are slidably connected in the guide groove.

[0019] Preferably, at least two limiting rings are fixed on the sliding rod, and the limiting rings are slidably connected with a side wall of the operation cover.

[0020] Preferably, a central axis of the cover body is arranged in line with a central axis of the base, and a diameter value of the cover body is greater than a diameter value of the operation cover.

[0021] Compared with the prior art, the utility model has the advantages of the following:

[0022] The utility model provides a static sealing structure of ship body cabin manhole cover, through rotating operation cover, can realize from two directions to the cover body pressure is applied, and the sealing element is extruded, not only can ensure that the cover body and base keep good sealing state, moreover effectively solve the cumbersome problem that traditional locking structure brings, have the characteristics that operation is simple and practicality is strong, effectively solve the problem that because traditional locking structure because of single pressure, long time damage sealing structure.

[0023] The utility model provides a static sealing structure of ship body cabin manhole cover, through the setting of the sealing element, not only can guarantee the good sealing state of the foundation, but also can cooperate with the pressure applied by the locking unit, keep the cover body and the base under the better sealing effect, and then avoid the risk of leakage. ACCURATE DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0025] Figure 1 It is the whole structure schematic diagram of the utility model;

[0026] Figure 2 It is the cover body side cross section structure schematic diagram of the utility model;

[0027] Figure 3 It is the sealing ring and cover body relationship structure schematic diagram of the utility model;

[0028] Figure 4 It is the base place explosion structure schematic view of the utility model;

[0029] Figure 5 It is the whole side section structure schematic view of the utility model;

[0030] Figure 6 It is the limiting piece place structure schematic view of the utility model;

[0031] Figure 7 It is Figure 6 The A area structure enlarged schematic view of the utility model.

[0032] Figure number explanation: 1, base; 2, hinged seat; 3, cover body; 4, operating cover; 5, locking unit; 51, passageway; 52, limiting plate; 53, limiting sleeve; 54, sliding slot; 55, sliding rod; 6, sealing rubber sleeve; 7, sealing piece; 71, recess a; 72, sealing ring; 73, recess b; 74, sealing rubber ring; 75, sealing pressure groove; 8, limiting piece; 81, rotating rod; 82, ratchet wheel; 83, operating rod; 84, ratchet claw; 85, rotating wheel; 9, guide ring; 10, guide pressure ring; 11, handle; 12, guide block; 13, guide slot; 14, limiting ring. DETAILED DESCRIPTION

[0033] The utility model will be further described in detail below in combination with the drawings.

[0034] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be used in other implementation, modification, improvement, equivalent and other technical solutions without departing from the spirit and scope of the utility model.

[0035] Those skilled in the art should understand that, in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, which is only for the simplified description of the utility model for the convenience of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation of the utility model.

[0036] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Example

[0037] Please see Figure 1 - Figure 7 A static sealing structure for a manhole cover in a ship's hull includes a base 1, a cover 3 rotatably connected to the base 1 via a hinge seat 2, and an operating cover 4 rotatably connected to the cover 3. The central axis of the cover 3 is collinear with the central axis of the base 1. The diameter of the cover 3 is larger than the diameter of the operating cover 4. A locking unit 5 is provided on the operating cover 4. The locking unit 5 is adapted to the base 1 and is used to lock the cover 3 onto the base 1. A sealing sleeve 6 is fixed to one side wall of the cover 3 near the base 1. The sealing sleeve 6 abuts against the base 1. A sealing element 7 is provided on the cover 3 and is used to improve the sealing effect between the cover 3 and the base 1.

[0038] In this solution, the cover 3 is flipped over and kept in a fully fitted state with the base 1. The locking unit 5 tightly fits and locks the cover 3 with the base 1. Pressure is applied to the cover 3 from two symmetrical directions, which ensures that the force on the sealing element 7 remains uniform. This significantly improves the sealing performance between the cover 3 and the base 1, ensuring a good seal between the cover 3 and the base 1 and effectively preventing leakage.

[0039] Furthermore, such as Figure 3 - Figure 5 As shown, the sealing element 7 includes: a groove a71 opened on the cover body 3, a sealing ring 72 fixed in the groove a71, a sealing groove 75 adapted to the sealing ring 72 opened on the base 1, a groove b73 opened on the base 1, a sealing rubber ring 74 fixed in the groove b73, and the sealing rubber ring 74 abutting against the cover body 3.

[0040] It should also be noted that the size of the sealing ring 72 is smaller than that of the sealing rubber ring 74. Together with the sealing ring 72 and the sealing rubber ring 74, they can form a two-layer progressive sealing effect, which can significantly improve the sealing effect between the cover 3 and the base 1. Furthermore, the shape of the sealing groove 75 matches the shape of the sealing ring 72. When the cover 3 is compressed, it can ensure that the sealing ring 72 and the sealing groove 75 remain in a tight fit, greatly improving the sealing performance between the cover 3 and the base 1.

[0041] Furthermore, such as Figure 2 - Figure 4 , Figure 6 - Figure 7As shown, the locking unit 5 comprises: at least two passages 51 are formed on the cover 3, a limiting plate 52 is slidably connected in the passage 51, a limiting sleeve 53 is fixed on the base 1 and matched with the limiting plate 52, at least two sliding grooves 54 are formed on the operation cover 4, a sliding rod 55 is fixed on the limiting plate 52 and slidably connected in the sliding groove 54, at least two limiting rings 14 are fixed on the sliding rod 55 and slidably connected with a side wall of the operation cover 4, the additional limiting rings 14 can greatly improve the stability of the transmission of the sliding rod 55 in the sliding groove 54, the limiting piece 8 matched with the operation cover 4 is arranged on the operation cover 4, the limiting piece 8 is used to prevent the operation cover 4 from being accidentally rotated, at least two handles 11 are fixed on the operation cover 4, and the two handles 11 are used to facilitate the user to operate and rotate the operation cover 4;

[0042] The limiting piece 8 comprises: a rotating rod 81 fixed on the cover 3, a hole is formed on the operation cover 4 and rotatably connected with the outer surface of the rotating rod 81, a ratchet wheel 82 is rotatably connected on the rotating rod 81, an operating rod 83 is rotatably connected on the operation cover 4, a pawl 84 is fixed on the operating rod 83 and meshingly connected with the ratchet wheel 82, and a rotating wheel 85 is fixed on one end of the operating rod 83;

[0043] It should be noted that the side wall of the limiting plate 52 close to the limiting sleeve 53 is arranged in an inverted chamfered slope, the inverted chamfered slope can make the pressing plate receive a certain downward pressure when the limiting plate 52 is engaged and pressed in the limiting sleeve 53, so as to better cooperate with the arrangement of the sealing piece 7, and then a better sealing effect is formed;

[0044] It should be further noted that at least two guide blocks 12 are fixed on the limiting plate 52, a guide groove 13 is formed on the cover 3 and communicated with the passage 51, and the guide block 12 is slidably connected in the guide groove 13, the guide block 12 and the guide groove 13 can further provide a guiding action for the limiting plate 52, ensure that the limiting plate 52 moves in a predetermined track, and ensure the stability of the movement of the limiting plate 52;

[0045] In this scheme, the clamping and locking process of the cover 3 and the base 1 is as follows:

[0046] Firstly, ensure that the cover 3 and the base 1 are in a close state, and apply a certain pressure to the cover 3 to keep the cover 3 and the base 1 in close contact;

[0047] Then, rotate the operation cover 4 to utilize the extrusion action of the sliding groove 54 and the sliding rod 55, so that the limiting rod moves linearly in the passage 51 after being stressed, the limiting plate 52 extends and moves into the limiting sleeve 53 after being stressed, and the limiting plate 52 and the limiting sleeve 53 are finally engaged and connected, at this time, the engagement and transmission action between the pawl 84 and the ratchet wheel 82 makes the operation cover 4 limited;

[0048] Then, when the clamping and locking state between the cover 3 and the base 1 needs to be released, the rotating wheel 85 is rotated, so that the operating rod 83 is forced to rotate, and then the ratchet pawl 84 is synchronously rotated, so that the ratchet pawl 84 is separated from the ratchet wheel 82, and then the limiting of the locking unit 5 can be released, that is, the operating cover 4 can be rotated in the opposite direction, the limiting plate 52 is separated from the limiting sleeve 53, so that the clamping and locking state is released. Embodiment

[0049] Please refer to Figure 5 - Figure 7 The embodiment is further described for the first embodiment, and the difference lies in that the connection between the operating cover 4 and the cover 3 is optimized.

[0050] Specifically, the cover 3 is fixed with at least two guide rings 9, the operating cover 4 is slidably connected with the outer side wall of the guide ring 9, and the central axis of the guide ring 9 is arranged in line with the central axis of the operating cover 4. Through the addition of the guide ring 9, a good guiding effect can be formed on the inner side of the operating cover 4, so as to ensure that the operating cover 4 always rotates around the axis of the cover 3;

[0051] At the same time, the cover 3 is fixed with a guide compression ring 10, and the operating cover 4 is slidably connected with the inner side wall of the guide compression ring 10. The vertical section of the guide compression ring 10 is arranged in an inverted L shape.

[0052] It should be noted that, in cooperation with the addition of the guide compression ring 10 and relying on the shape of the guide compression ring 10, the operating cover 4 can be ensured to rotate within a limited range, so as to prevent the operating cover 4 from being misaligned or even displaced during use.

[0053] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and described in the embodiments, and the embodiments of the utility model can be any deformation or modification without departing from the principle.

Claims

1. A static sealing structure of a ship hull hatch cover, comprising: a base (1), a cover body (3) is rotatably connected to the base (1) through a hinge seat (2); characterized in that further comprising: an operating cover (4) rotatably connected to the cover body (3), the operating cover (4) is provided with a locking unit (5) matched with the base (1), the locking unit (5) is used for locking the cover body (3) on the base (1), a sealing rubber sleeve (6) is fixed on the side wall of the cover body (3) close to the base (1), the sealing rubber sleeve (6) abuts against the base (1), and a sealing element (7) provided on the cover body (3) is used for improving the sealing effect between the cover body (3) and the base (1).

2. A static seal structure for a ship's hatch cover according to claim 1, characterized in that, The locking unit (5) comprises that at least two channels (51) are formed in the cover body (3), a limiting plate (52) is slidably connected in the channel (51), a limiting sleeve (53) matched with the limiting plate (52) is fixed on the base (1), at least two sliding grooves (54) are formed in the operating cover (4), a sliding rod (55) slidably connected in the sliding groove (54) is fixed on the limiting plate (52), and a limiting element (8) matched with the operating cover (4) is arranged on the operating cover (4), the limiting element (8) is used for preventing the operating cover (4) from being accidentally rotated.

3. A static seal structure for a ship's hatch cover according to claim 2, characterized in that, The limiting element (8) comprises a rotating rod (81) fixed on the cover body (3), a ratchet wheel (82) rotatably connected to the rotating rod (81), an operating rod (83) rotatably connected to the operating cover (4), a pawl (84) meshingly connected with the ratchet wheel (82) fixed on the operating rod (83), and a rotating wheel (85) fixed on one end of the operating rod (83).

4. A static seal structure for a ship's hatch cover according to claim 1, wherein The sealing element (7) comprises a groove a (71) formed in the cover body (3), a sealing ring (72) fixed in the groove a (71), a sealing pressing groove (75) matched with the sealing ring (72) formed in the base (1), a groove b (73) formed in the base (1), and a sealing rubber ring (74) fixed in the groove b (73), wherein the sealing rubber ring (74) abuts against the cover body (3).

5. A static seal structure for a ship's hatch cover according to claim 1, wherein At least two guide rings (9) are fixed on the cover body (3), the operating cover (4) is slidably connected with the outer side wall of the guide ring (9), and the central axis of the guide ring (9) is arranged in line with the central axis of the operating cover (4).

6. A static seal structure for a ship's hatch cover according to claim 1, wherein A guide pressing ring (10) is fixed on the cover body (3), the operating cover (4) is slidably connected with the inner side wall of the guide pressing ring (10), and the vertical section of the guide pressing ring (10) is arranged in an inverted L shape.

7. A static seal structure for a ship's hatch cover according to claim 3, wherein At least two handles (11) are fixed on the operating cover (4), and a hole is formed in the operating cover (4) and rotatably connected with the outer surface of the rotating rod (81).

8. A static seal structure for a ship's hatch cover according to claim 2, wherein The limiting plate (52) is provided with an inverted chamfered surface on one side wall close to the limiting sleeve (53), at least two guide blocks (12) are fixed on the limiting plate (52), a guide groove (13) is formed in the cover (3) and is communicated with the channel (51), and the guide blocks (12) are slidably connected in the guide groove (13).

9. A static seal structure for a ship's hatch cover according to claim 2, wherein At least two limiting rings (14) are fixed on the sliding rod (55) and are slidably connected with one side wall of the operation cover (4).

10. A static seal structure for a ship's hatch cover according to claim 1, wherein The central axis of the cover (3) is arranged in line with the central axis of the base (1), and the diameter of the cover (3) is greater than the diameter of the operation cover (4).

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