Steel hatch cover for double-sided quick opening and closing ship

Abstract

The utility model discloses a steel hatch cover for a double-sided quick opening and closing ship, which comprises a cover plate and a box body, a boss is arranged on the cover plate, a groove is arranged on the box body, and when the hatch cover is closed, the boss is matched with the groove to form a sealing structure; the boss is provided with a locking mechanism, the locking mechanism comprises a rotating disc, the rotating disc is provided with a fixing rod, the fixing rod is connected with a locking connecting rod, the locking connecting rod is sleeved with a supporting column, and the supporting column is rotationally connected with the boss; a connecting hole is formed in the box body, and when the hatch cover is closed, the locking connecting rod can extend into the connecting hole to form a locking structure by rotating the rotating disc; the side, away from the cover plate, of the rotary disc is connected with a bidirectional labor-saving mechanism. According to the steel hatch cover for the double-sided quick opening and closing ship, through a specific meshing mode, the small gear drives the large gear to form a two-way speed reducing mechanism, so that an operator can open or close the hatch cover with small strength no matter the operator operates outside or inside a cabin, and the steel hatch cover has the advantages of being convenient to operate and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of hatch covers, in particular to a double-sided fast-opening and closing ship steel hatch cover. Background Art

[0002] Different cabins are set up on ships according to needs. The entrances and exits of some cabins are set at the top of the cabins. The entrances and exits are hatches, and the hatch covers are used to open and close the hatches. The hatch covers are set to different sizes depending on the type of cabin or the specifications of the ship. Small hatch covers can be opened and closed by manual push.

[0003] Traditional hatch covers that are opened and closed manually are mostly hand wheel and connecting rod structures. For example, Chinese patent CN106143798 B discloses an embedded central quick opening and closing hatch cover. However, the hatch cover of this structure requires the connecting rod and the connecting hole to be closely matched. Therefore, the friction force on the connecting rod is relatively large during opening and closing. It requires a lot of force to open or close manually, which has the problems of high labor intensity and long opening and closing time. Moreover, in special circumstances, when emergency evacuation is required, the escape time may be seriously delayed due to the difficulty and slow opening of the hatch cover. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a double-sided quick-opening and closing marine steel hatch cover. The double-sided quick-opening and closing marine steel hatch cover of the present application adopts a specific structure, so that when operated manually, only a small amount of effort is required to open or close the hatch cover, and it has the characteristics of convenient operation and high reliability.

[0005] The technical solution of this application is:

[0006] A double-sided quick-opening and closing marine steel hatch cover comprises a cover plate and a box body, wherein the cover plate is provided with a pair of hinged plates A, and the box body is provided with a pair of hinged plates B, and the hinged plates A and B are connected by a hinge shaft to form a hinge structure; a boss is provided on the cover plate, and a groove is provided on the box body, and when the hatch cover is closed, the boss and the groove cooperate to form a sealing structure; a locking mechanism is provided on the boss, and the locking mechanism comprises a turntable, and the turntable is rotatably connected to the boss through a central axis; a group of fixing rods distributed in a circle are provided on the turntable, and a locking link is rotatably connected to the fixing rod, and the other end of the locking link is sleeved with a supporting column, and the locking link and the supporting column form a sliding secondary structure, and one end of the support column is rotatably connected to the boss; a group of connecting holes are correspondingly provided inside the box body, and when the hatch cover is closed, the rotating turntable can The locking link is extended into the connecting hole to form a locking structure; a bidirectional force-saving mechanism is connected to the side of the turntable away from the cover plate, and the bidirectional force-saving mechanism includes, from the inside to the outside, an A bevel gear connected to the turntable, a B bevel gear meshing with the A bevel gear, a C bevel gear coaxial with the B bevel gear, and a D bevel gear meshing with the C bevel gear; the number of teeth of the A bevel gear, the B bevel gear, the C bevel gear, and the D bevel gear decreases in sequence; an inner hand wheel is connected to the end of the D bevel gear away from the cover plate; a bracket is provided on the boss for mounting and fixing the B bevel gear, the C bevel gear, and the D bevel gear; the central shaft is a hollow shaft, and a transmission shaft is provided inside the central shaft, and the transmission shaft is clearance-matched with the central shaft; one end of the transmission shaft extends out of the cover plate and is connected to the outer hand wheel, and the other end extends out of the A bevel gear and is connected to the E bevel gear; the E bevel gear is meshed with the C bevel gear.

[0007] Compared with the prior art, the double-sided quick-opening and closing ship steel hatch cover of the present application is provided with A bevel gear, B bevel gear, C bevel gear and D bevel gear. Through a specific meshing method, the small gear drives the large gear to form a reduction mechanism, and the transmission shaft is arranged inside the central shaft and extends out to be connected with the E bevel gear that meshes with the A bevel gear and the C bevel gear. This ingenious structural design forms a bidirectional reduction structure to achieve the purpose of saving effort in both directions, so that the operator only needs less effort to open or close the hatch cover whether operating outside or inside the cabin, and it has the characteristics of convenient operation and high reliability.

[0008] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, a rounded corner structure is provided at one end of the locking link that matches the connecting hole. With this structure, a rounded corner is provided at the matching position of the locking link and the connecting hole, which plays a certain guiding role, so that the locking link can smoothly enter the connecting hole.

[0009] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, a bearing is provided at the connection between the support column and the boss. With this structure, a bearing is provided at the connection between the support column and the boss, which facilitates the rotation of the support column, thereby making it more labor-saving when manually opening or closing the hatch cover. Furthermore, a bearing is provided at the rotation connection between the bracket and the B bevel gear, the C bevel gear, and the D bevel gear. With this structure, the labor-saving effect when manually opening or closing the hatch cover is further improved.

[0010] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, an oil seal is provided at the connection between the cover plate and the transmission shaft, and is fixed to the cover plate by a flange. With this structure, an oil seal is provided at the connection between the cover plate and the transmission shaft, and when the hatch cover is installed on an open deck, rain or seawater can be prevented from entering the cabin.

[0011] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, a sealing ring is sleeved on the boss. With this structure, a sealing ring is arranged on the boss, which not only improves the sealing effect, but also avoids the wear caused by the direct contact between the boss and the groove. Further, the sealing ring is a corrugated sealing ring. The corrugated sealing ring has better elasticity and deformation space, and can form a multi-layer sealing structure with the inside of the groove, further improving the sealing effect.

[0012] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, a handle is provided on the side of the cover plate. With this structure, a handle is provided on the cover plate to facilitate opening and closing the cover plate.

[0013] As an optimization, in the aforementioned double-sided quick-opening and closing marine steel hatch cover, the A hinge plate is provided with an A pin hole, the B hinge plate is provided with a B pin hole, and the B hinge plate is connected with a pin through a chain; when the cover plate is opened to a specified angle, the A pin hole and the B pin hole can be aligned. With this structure, when the cover plate is opened to a specified angle, the pin is inserted into the aligned A pin hole and B pin hole, which can play a role in fixing the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the double-sided quick-opening and closing marine steel hatch cover of the present application when it is closed;

[0015] Figure 2 This is a schematic diagram of the structure of the double-sided quick-opening and closing marine steel hatch cover of the present application when it is opened;

[0016] Figure 3 is a schematic diagram of the locking mechanism of the hatch cover when it is closed in the present application;

[0017] Figure 4 It is a schematic diagram of the locking mechanism of the hatch cover when it is opened in the present application;

[0018] Figure 5yes Figure 4 Middle AA section view;

[0019] Figure 6 It is a structural schematic diagram of the bidirectional labor-saving mechanism of the present application installed on the cover plate.

[0020] The markings in the accompanying drawings are: 1-cover plate, 11-A hinge plate, 111-A pin hole, 12-boss; 2-box, 21-B hinge plate, 211-B pin hole, 22-groove, 23-connecting hole; 3-hinge shaft; 4-locking mechanism, 41-turntable, 411-center axis, 42-fixing rod, 43-locking connecting rod, 44-support column; 5-bidirectional effort-saving mechanism, 51-A bevel gear, 52-B bevel gear, 53-C bevel gear; 54-D bevel gear, 55-inner hand wheel, 56-bracket, 57-transmission shaft, 58-outer hand wheel, 59-E bevel gear; 6-oil seal; 7-sealing ring; 8-handle; 9-pin. DETAILED DESCRIPTION

[0021] The present application is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present application.

[0022] Example (see Figure 1 to Figure 6 ):

[0023] A double-sided quick-opening and closing marine steel hatch cover comprises a cover plate 1 and a box body 2, wherein the cover plate 1 is provided with a pair of A hinged plates 11, and the box body 2 is provided with a pair of B hinged plates 21, wherein the A hinged plates 11 and the B hinged plates 21 are connected via a hinge shaft 3 to form a hinged structure; the cover plate 1 is provided with a boss 12, and the box body 2 is provided with a groove 22, and when the hatch cover is closed, the boss 12 cooperates with the groove 22 to form a sealing structure; the boss 12 is provided with a locking mechanism 4, and the locking mechanism 4 comprises a rotating disk 41 The turntable 41 is rotatably connected to the boss 12 through a central axis 411; a group of circumferentially distributed fixing rods 42 are provided on the turntable 41, and a locking link 43 is rotatably connected to the fixing rod 42. The other end of the locking link 43 is sleeved with a support column 44, and the locking link 43 and the support column 44 form a sliding secondary structure, and one end of the support column 44 is rotatably connected to the boss 12; a group of connecting holes 23 are correspondingly provided inside the box body 2. When the hatch cover is closed, rotating the turntable 41 can make the locking link 4 3 extends into the connection hole 23 to form a locking structure; the side of the rotating disk 41 away from the cover plate 1 is connected to a two-way effort-saving mechanism 5, and the two-way effort-saving mechanism 5 includes, from the inside to the outside, an A bevel gear 51 connected to the rotating disk 41, a B bevel gear 52 meshing with the A bevel gear 51, a C bevel gear 53 coaxial with the B bevel gear 52, and a D bevel gear 54 meshing with the C bevel gear 53; the number of teeth of the A bevel gear 51, the B bevel gear 52, the C bevel gear 53, and the D bevel gear 54 decreases in sequence; the D bevel gear 54 is far away from the cover plate 1. An inner hand wheel 55 is connected to one end away from the cover plate 1; a bracket 56 is provided on the boss 12 for mounting and fixing the B bevel gear 52, the C bevel gear 53, and the D bevel gear 54; the central shaft 411 is a hollow shaft, and a transmission shaft 57 is provided inside the central shaft 411, and the transmission shaft 57 is clearance-matched with the central shaft 411; one end of the transmission shaft 57 extends out of the cover plate 1 and is connected to the outer hand wheel 58, and the other end extends out of the A bevel gear 51 and is connected to the E bevel gear 59; the E bevel gear 59 is meshed with the C bevel gear 53.

[0024] In this embodiment, a rounded structure is provided at one end of the locking link 43 that matches the connecting hole 23. The rounded structure is provided at the matching position of the locking link 43 and the connecting hole 23 to play a certain guiding role, so that the locking link 43 can smoothly enter the connecting hole 23.

[0025] In this embodiment, a bearing is provided at the connection between the support column 44 and the boss 12. With this structure, a bearing is provided at the connection between the support column 44 and the boss 12, which facilitates the rotation of the support column 44, thereby making it more labor-saving when manually opening or closing the hatch cover.

[0026] In this embodiment, bearings are provided at the rotational connection points between the bracket 56 and the B bevel gear 52, the C bevel gear 53, and the D bevel gear 54, so as to further improve the labor-saving effect when manually opening or closing the hatch cover.

[0027] In this embodiment, an oil seal 6 is provided at the connection between the cover plate 1 and the transmission shaft 57, and is fixed to the cover plate 1 through a flange. The oil seal 6 is provided at the connection between the cover plate 1 and the transmission shaft 57, so that when the hatch cover is installed on an open deck, rain or seawater can be prevented from entering the cabin.

[0028] In this embodiment, the boss 12 is sleeved with a sealing ring 7; the sealing ring 7 is a corrugated sealing ring. The sealing ring 7 is arranged on the boss 12, which not only improves the sealing effect, but also avoids the wear caused by the direct contact between the boss 12 and the groove 22; further, the corrugated sealing ring has better elasticity and deformation space, and can form a multi-layer sealing structure with the inside of the groove 22, further improving the sealing effect.

[0029] In this embodiment, a handle 8 is provided on the side of the cover plate 1. The handle 8 is provided on the cover plate 1 to facilitate opening and closing the cover plate 1.

[0030] In this embodiment, the A hinge plate 11 is provided with an A pin hole 111, the B hinge plate 21 is provided with a B pin hole 211, and the B hinge plate 21 is connected with a pin 9 through a chain; when the cover plate 1 is opened to a specified angle (90° in this embodiment), the A pin hole 111 and the B pin hole 211 can be aligned. With this structure, when the cover plate 1 is opened to a specified angle, the pin 9 is inserted into the aligned A pin hole 111 and B pin hole 211, which can play a role in fixing the cover plate 1.

[0031] When the double-sided quick-opening and closing marine steel hatch cover of the present embodiment is closed, the cover plate 1 is placed on the box body 2 so that the sealing ring 7 on the boss 11 contacts the groove 22 to form a sealing structure; the inner hand wheel 55 is turned (if the operator is on the outside, the outer hand wheel 58 is turned), and the D bevel gear 54 connected to the inner hand wheel 55 drives the C bevel gear 53 meshing with it to rotate (if the operator is on the outside, the E bevel gear 59 connected to the outer hand wheel 58 drives the C bevel gear 53 meshing with it to rotate), the C bevel gear 53 drives the coaxial B bevel gear 52 to rotate, the B bevel gear 52 drives the A bevel gear 51 meshing with it to rotate, and the A bevel gear 51 drives the turntable 41 to rotate through the central shaft 411, so that the locking link 43 hinged on the turntable 41 cooperates with the support column 44 to extend into the connecting hole 23 of the box body 2 to form a locking structure.

[0032] The above general description of the utility model involved in this application and the description of its specific implementation method should not be understood as limiting the technical solution of the utility model. Based on the disclosure of this application, those skilled in the art can add, reduce or combine the disclosed technical features in the above general description or / and the specific implementation method (including examples) without violating the constituent elements of the utility model involved, to form other technical solutions within the scope of protection of this application.

Claims

1. Double-sided quick-opening and closing marine steel hatch cover, characterized by: The invention comprises a cover plate (1) and a box body (2), wherein the cover plate (1) is provided with a pair of hinged plates (11) A, and the box body (2) is provided with a pair of hinged plates (21) B, wherein the hinged plates (11) A and hinged plates (21) B are connected via hinge shafts (3) to form a hinged structure; the cover plate (1) is provided with a boss (12), and the box body (2) is provided with a groove (22); when the hatch cover is closed, the boss (12) and the groove (22) cooperate to form a sealing structure; The boss (12) is provided with a locking mechanism (4), and the locking mechanism (4) comprises a rotating disk (41), and the rotating disk (41) is rotatably connected to the boss (12) through a central axis (411); the rotating disk (41) is provided with a group of fixing rods (42) distributed in a circumference, and a locking link (43) is rotatably connected to the fixing rod (42), and the other end of the locking link (43) is sleeved with a supporting column (44), and the locking link (43) and the supporting column (44) form a sliding auxiliary structure, and one end of the supporting column (44) is rotatably connected to the boss (12); a group of connecting holes (23) are correspondingly provided inside the box body (2), and when the hatch cover is closed, the rotating disk (41) can be rotated to make the locking link (43) extend into the connecting hole (23) to form a locking structure; A bidirectional force-saving mechanism (5) is connected to the side of the rotating disk (41) away from the cover plate (1), and the bidirectional force-saving mechanism (5) comprises, from the inside to the outside, an A bevel gear (51) connected to the rotating disk (41), a B bevel gear (52) meshing with the A bevel gear (51), a C bevel gear (53) coaxial with the B bevel gear (52), and a D bevel gear (54) meshing with the C bevel gear (53); the number of teeth of the A bevel gear (51), the B bevel gear (52), the C bevel gear (53), and the D bevel gear (54) decreases in sequence; an end of the D bevel gear (54) away from the cover plate (1) is connected to an inner hand wheel (55); a bracket (56) is provided on the boss (12) for mounting and fixing the B bevel gear (52), the C bevel gear (53), and the D bevel gear (54); The central shaft (411) is a hollow shaft. A transmission shaft (57) is provided inside the central shaft (411). The transmission shaft (57) and the central shaft (411) are clearance-matched. One end of the transmission shaft (57) extends out of the cover plate (1) and is connected to the outer hand wheel (58), and the other end extends out of the A bevel gear (51) and is connected to the E bevel gear (59). The E bevel gear (59) is meshed with the C bevel gear (53).

2. The double-sided quick-opening and closing marine steel hatch cover according to claim 1, characterized in that: One end of the locking link (43) that matches the connecting hole (23) is provided with a rounded corner structure.

3. The double-sided quick-opening and closing marine steel hatch cover according to claim 2 is characterized in that: A bearing is provided at the connection between the support column (44) and the boss (12).

4. The double-sided quick-opening and closing marine steel hatch cover according to claim 3 is characterized in that: An oil seal (6) is provided at the connection between the cover plate (1) and the transmission shaft (57), and is fixed to the cover plate (1) via a flange.

5. The double-sided quick-opening and closing marine steel hatch cover according to claim 4 is characterized in that: The boss (12) is sleeved with a sealing ring (7).

6. The double-sided fast opening and closing ship steel hatch cover according to any one of claims 1 to 5, characterized in that: A handle (8) is provided on the side of the cover plate (1).

7. The double-sided quick-opening and closing marine steel hatch cover according to claim 6, characterized in that: The A hinge plate (11) is provided with an A pin hole (111), the B hinge plate (21) is provided with a B pin hole (211), and the B hinge plate (21) is connected with a pin (9) via a chain; when the cover plate (1) is opened to a specified angle, the A pin hole (111) and the B pin hole (211) can be aligned.

Images