A chain-type large hatch cover

Abstract

The present invention discloses a large hatch cover with a set of chains, and relates to the field of ship technology. The present invention comprises a group of symmetrically arranged frames, hatch cover assemblies, hatch enclosures, drive assemblies and a group of locking assemblies, a plurality of slide rails are fixed side by side on the top surface of the frame, the hatch enclosure is fixed at one end of the hatch cover assembly, the hatch cover assembly comprises a plurality of hatch covers which are stacked and mutually sleeved, a plurality of wheel bodies are rotatably connected to the inner sides of the two side walls of the plurality of hatch covers, and the plurality of hatch covers are respectively slidably matched with the frame body through a plurality of wheel bodies and a plurality of slide rails. The present invention forms a new type of hatch cover by stacking and sleeved a plurality of hatch covers, and when the hatch covers are opened and closed, the hatch covers are unfolded or stacked with each other as they are translated, and a new type of drive assembly is provided to realize the stable translation of the hatch cover, and the hatch cover can be locked and unlocked by providing a locking assembly, thereby solving the problems of the existing hatch covers having a long operation time and occupying a large space.

Description

Technical Field

[0001] The invention belongs to the technical field of ships, and in particular relates to a chain-type large hatch cover. Background Art

[0002] The large hatch cover is one of the important equipment in ship design, providing an openable and closable storage space for the engine room of the ship. The engine room accommodates almost all the important equipment of the ship and can be said to be the heart of the ship. The usual hatch cover is a fixed integral cover plate, which is opened or closed by sliding. Since the hatch cover is large, it is troublesome to open and close the hatch cover, and when it is open, the hatch cover will occupy a lot of space. Summary of the invention

[0003] The object of the present invention is to provide a large chain-type hatch cover, which is formed by arranging a plurality of hatch covers to be stacked and nested to form a new type of hatch cover. When the hatch covers are opened and closed, the hatch covers are unfolded or stacked with each other as they move horizontally. At the same time, a new type of driving assembly is arranged to achieve stable translation of the hatch covers. At the same time, a locking assembly is arranged to lock and unlock the hatch covers, thereby solving the problems of the existing hatch covers having a long operating time and occupying a large space.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is a chain-type large hatch cover, comprising a set of symmetrically arranged frames, hatch cover components, hatch enclosures, drive components and a set of locking components;

[0006] A plurality of slide rails are fixed side by side on the top surface of the frame;

[0007] The hatch cover assembly comprises a plurality of hatch covers which are stacked and sleeved on each other, the inner sides of both side walls of the plurality of hatch covers are rotatably connected with a plurality of wheel bodies, the plurality of hatch covers are respectively slidably matched with the frame body through a plurality of wheel bodies and a plurality of slide rails, the hatch enclosure frame fixes one end of one of the hatch covers, and the rear side of the hatch cover away from the hatch enclosure frame is fixedly connected with the frame body;

[0008] A first stop edge is fixed to the inner side of one end of the hatch cover, and a second stop edge is fixed to the circumferential side of the other end of the hatch cover, and sealing gaskets are provided on the inner side of the first stop edge and the outer side of the second stop edge;

[0009] The driving assembly includes a speed reducer, a first sprocket guide wheel and a set of second sprocket guide wheels;

[0010] The speed reducer and the first sprocket are respectively fixed at one end of the two frames, and the two second sprockets are respectively fixed at the other end of the two frames. The speed reducer and the first sprocket are all connected to the two second sprockets by a first chain, and the upper part of the first chain is fixedly connected to the hatch cover close to the hatch enclosure frame.

[0011] The locking assembly comprises a bracket, the brackets on the two locking assemblies are respectively fixed to the inner sides of the two frames, the bracket is rotatably connected to an oil cylinder via a hinge seat, and the output end of the oil cylinder is driven by a connecting rod mechanism to have a locking hook;

[0012] The lower part of the first chain is fixed with a fixing screw through a connecting block, and the fixing screw is opposite to and matched with the locking hook.

[0013] Furthermore, a bridge wheel is fixed on the inside of the frame body, a bridge shaft is provided between the axles of the bridge wheels on the two frames, a second chain is transmitted between the reducer and the first sprocket wheel and the two bridge wheels, a plurality of chain supporting wheels are provided on the first chain and the second chain, and the plurality of chain supporting wheels are fixed on the inside of the frame body.

[0014] Furthermore, the connecting rod mechanism includes a connecting rod and a push rod, and a push rod frame is fixed inside the frame body and at a position opposite to the bracket. One end of the connecting rod and one end of the push rod are rotatably connected to the output end of the cylinder through a pin shaft, and the other end of the push rod is rotatably connected to the push rod frame, and the other end of the connecting rod is rotatably connected to one end of the locking hook through a rotating shaft.

[0015] Furthermore, the push rod frame is provided with a first slide groove and a second slide groove, the locking hook is penetrated by a slide rod, the rotating shaft and the slide rod are respectively located inside the first slide groove and the second slide groove and are slidably matched with the first slide groove and the second slide groove.

[0016] Furthermore, a bent portion is provided at one end of the locking hook away from the rotating shaft, a straight portion is provided at one end of the bent portion, a hooking portion is provided inside the straight portion, and the hooking portion matches the fixing screw.

[0017] Furthermore, the frame body includes an inverted L-shaped plate, and a plurality of reinforcing ribs are fixed side by side on the outer side surface of the inverted L-shaped plate.

[0018] Furthermore, an opening is provided on one side of the reinforcing rib close to the inverted L-shaped plate, and a reinforcing edge is fixed on the outer side of the inverted L-shaped plate and located within the openings on the reinforcing ribs.

[0019] Furthermore, a limit strip is fixed on the inner bottom surface of the slide rail, the wheel body is an I-shaped wheel body structure, and the wheel body is located inside the slide rail and rolls along the limit strip.

[0020] Furthermore, the reducer is a dual-input shaft reducer, one input shaft of the reducer is fixed with a hydraulic motor, and the other input end of the reducer is fixed with a manual turntable.

[0021] Furthermore, it also includes a hydraulic pump station, which includes a hydraulic pump and a hand pump. The oil inlet and oil outlet of the hydraulic motor and the oil inlet and oil outlet of the cylinder are all connected to the hydraulic pump and the hand pump. A hand valve is provided on the oil circuit between the hydraulic motor and the cylinder and the hand pump, and an electromagnetic valve is provided on the oil circuit between the hydraulic motor and the cylinder and the hydraulic pump.

[0022] The present invention has the following beneficial effects:

[0023] 1. The present invention forms a new type of hatch cover by arranging a plurality of hatch covers stacked and sleeved. When the hatch covers are opened and closed, the hatch covers are unfolded or stacked with each other as they move horizontally. Compared with the integral hatch covers in the prior art, the hatch cover assembly of the present invention is easy to operate and occupies less space. At the same time, the time for opening and closing the hatch covers is relatively short, and the efficiency is high.

[0024] 2. The present invention drives the movement of the hatch cover by setting a new type of driving assembly. The designed new driving assembly can ensure the stable and smooth operation of the hatch cover. At the same time, by setting a locking mechanism, it can ensure that the top hatch cover presses the bow gangplank, ensuring the watertightness and fixing ability between the hatch cover and the bow gangplank, thereby avoiding the hatch cover from being easily removed and the insufficient fixing ability.

[0025] 3. The present invention sets the input end of the driving component as a hydraulic motor and a manual turntable, and sets a hydraulic pump and a hand pump on the pump station, so that the hydraulic motor and the locking cylinder can be supplied with oil electrically and manually. When the device loses power, the hatch cover can be manually opened, closed, unlocked and locked for emergency operations.

[0026] 4. The present invention respectively arranges a first stop edge and a second stop edge at both ends of the hatch cover, and arranges sealing gaskets on the first stop edge and the second stop edge. After the hatch cover assembly is unfolded, the first stop edges and the second stop edges on the two adjacent hatch covers are in contact with each other, and mechanical limiting can be performed to avoid the problem of the hatch covers falling off. At the same time, after full unfolding, the sealing gasket between the first stop edge and the second stop edge can be compressed to effectively seal the hatch cover assembly.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1It is a structural schematic diagram of a chain-type large hatch cover of the present invention;

[0030] Figure 2 It is a structural diagram of the frame;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0032] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0033] Figure 5 It is a structural schematic diagram of the hatch cover assembly;

[0034] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0035] Figure 7 is a schematic diagram of the structure of the drive component;

[0036] Figure 8 It is a structural side view of the locking assembly;

[0037] Fig. 9 It is a top view of the structure of the locking assembly;

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] 1-frame, 2-hatch cover assembly, 3-hatch enclosure, 4-drive assembly, 5-locking assembly, 6-connecting block, 101-slide rail, 102-inverted L-shaped plate, 103-reinforcement rib, 104-reinforcement edge, 105-limiting strip, 201-hatch cover, 202-wheel body, 203-first stop edge, 204-second stop edge, 401-reducer, 402-first sprocket wheel, 403-second sprocket wheel, 404-first Chain, 405-chain supporting wheel, 406-bridge wheel, 407-bridge shaft, 408-fixing screw, 409-second chain, 501-bracket, 502-oil cylinder, 503-locking hook, 504-connecting rod, 505-push rod, 506-push rod frame, 507-rotating shaft, 508-first slide groove, 509-second slide groove, 510-slide rod, 511-bending part, 512-straight part, 513-hook holding part. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-9 As shown, the present invention is a chain-type large hatch cover, comprising a set of symmetrically arranged frames 1, hatch cover components 2, hatch enclosures 3, drive components 4 and a set of locking components 5;

[0042] A plurality of slide rails 101 are fixed side by side on the top surface of the frame 1, and the frame 1 is installed at the positions on both sides of the hatch to ensure that the hatch cover assembly 2 is located directly above the hatch;

[0043] The hatch cover assembly 2 comprises a plurality of hatch covers 201 stacked and mutually nested, the inner sides of both side walls of the plurality of hatch covers 201 are rotatably connected with a plurality of wheel bodies 202, the plurality of hatch covers 201 are respectively slidably matched with the frame body 1 through the plurality of wheel bodies 202 and the plurality of slide rails 101, the hatch enclosure 3 fixes one end of one of the hatch covers 201, the rear side of the hatch cover 201 away from the hatch enclosure 3 is fixedly connected with the frame body 1, after the hatch cover 201 is unfolded, the hatch enclosure 3 contacts with the sealing member on the bow ramp and is pressed by the driving of the driving assembly 4, so as to ensure the water tightness between the hatch enclosure 3 and the bow ramp;

[0044] A first retaining edge 203 is fixed to the inner side of one end of the hatch cover 201, and a second retaining edge 204 is fixed to the circumferential side of the other end of the hatch cover 201. Sealing gaskets are provided on the inner side of the first retaining edge 203 and the outer side of the second retaining edge 204.

[0045] The driving assembly 4 includes a reducer 401, a first sprocket guide wheel 402 and a set of second sprocket guide wheels 403;

[0046] The reducer 401 and the first sprocket wheel 402 are respectively fixed at one end of the two frames 1, and the two second sprocket wheels 403 are respectively fixed at the other end of the two frames 1. The reducer 401 and the first sprocket wheel 402 and the two second sprocket wheels 403 are all connected to each other by a first chain 404. The upper part of the first chain 404 is fixedly connected to the hatch cover 201 close to the hatch enclosure 3.

[0047] The locking assembly 5 includes a bracket 501. The brackets 501 on the two locking assemblies 5 are respectively fixed to the inner sides of the two frame bodies 1. The bracket 501 is rotatably connected to a cylinder 502 through a hinge seat. The output end of the cylinder 502 is driven by a connecting rod mechanism to form a locking hook 503.

[0048] A fixing screw 408 is fixed to the lower part of the first chain 404 through the connecting block 6 , and the fixing screw 408 is opposite to and matched with the locking hook 503 .

[0049] Among them Figure 7As shown, a bridge wheel 406 is fixed on the inner side of the frame 1, a bridge shaft 407 is provided between the axis centers of the bridge wheels 406 on the two frames 1, a second chain 409 is transmitted between the reducer 401 and the first sprocket wheel 402 and the two bridge wheels 406, and a plurality of chain supporting wheels 405 are provided on the first chain 404 and the second chain 409, and the plurality of chain supporting wheels 405 are fixed on the inner side of the frame 1.

[0050] Among them Figure 8-9 As shown, the connecting rod 504 mechanism includes a connecting rod 504 and a push rod 505, and a push rod frame 506 is fixed on the inner side of the frame body 1 and at a position opposite to the bracket 501. One end of the connecting rod 504 and one end of the push rod 505 are rotatably connected to the output end of the cylinder 502 through a pin shaft, and the other end of the push rod 505 is rotatably connected to the push rod frame 506. The other end of the connecting rod 504 is rotatably connected to one end of the locking hook 503 through a rotating shaft 507.

[0051] Among them Figure 8-9 As shown, the push rod frame 506 is provided with a first slide groove 508 and a second slide groove 509, the locking hook 503 is penetrated by a slide rod 510, the rotating shaft 507 and the slide rod 510 are respectively located inside the first slide groove 508 and the second slide groove 509 and slideably cooperate with the first slide groove 508 and the second slide groove 509.

[0052] Among them Figure 8-9 As shown, a bent portion 511 is provided at one end of the locking hook 503 away from the rotating shaft 507 , a straight portion 512 is provided at one end of the bent portion 511 , a hooking portion 513 is provided inside the straight portion 512 , and the hooking portion 513 matches the fixing screw 408 .

[0053] Among them Figure 1-2 and Figure 4 As shown, the frame 1 includes an inverted L-shaped plate 102 , and a plurality of reinforcing ribs 103 are fixed side by side on the outer side of the inverted L-shaped plate 102 .

[0054] Among them Figure 1-2 and Figure 4 As shown, an opening is provided on one side of the reinforcing rib 103 close to the inverted L-shaped plate 102 , and a reinforcing edge 104 is fixed on the outer side of the inverted L-shaped plate 102 and located within the openings on the reinforcing ribs 103 .

[0055] Among them Figure 3 As shown, a limit strip 105 is fixed to the inner bottom surface of the slide rail 101 , and the wheel body 202 is an I-shaped wheel body 202 structure. The wheel body 202 is located inside the slide rail 101 and rolls along the limit strip 105 .

[0056] The reducer 401 is a dual-input shaft reducer, one input shaft of the reducer 401 is fixed with a hydraulic motor, and the other input end of the reducer 401 is fixed with a manual turntable. The manual turntable can drive the reducer 401 to operate, thereby realizing the operation of the drive component 4.

[0057] It also includes a hydraulic pump station, which includes a hydraulic pump and a hand pump. The oil inlet and outlet of the hydraulic motor and the oil inlet and outlet of the cylinder 502 are all connected to the hydraulic pump and the hand pump. A hand valve is provided on the oil circuit between the hydraulic motor and the cylinder 502 and the hand pump. A solenoid valve is provided on the oil circuit between the hydraulic motor and the cylinder 502 and the hydraulic pump. In the power-off state, the hand pump can be shaken to operate the hand valve to drive the locking cylinder and the hydraulic motor to run, thereby completing the emergency manual opening and closing and locking and unlocking of the hatch cover assembly 2.

[0058] The working principle of this embodiment is as follows: when the hatch cover needs to be opened, the oil cylinder 502 is controlled to retract through the pump station. As the oil cylinder 502 retracts and is connected through the connecting rod mechanism, it can drive the rotating shaft 507 and the sliding rod 510 to slide along the first sliding groove 508 and the second sliding groove 509, thereby driving the hooking portion 513 of the locking hook 503 to disengage from the fixing screw 408 on the connecting block 6, so as to unlock the hatch cover 201. After unlocking, the hydraulic motor is controlled to operate through the pump station, and the mutual cooperation of the hydraulic motor and the reducer 401 can drive the first chain 404 on the driving assembly 4 to transmit, thereby driving the hatch cover 201 to retract and stack on one side of the frame 1, so as to open the hatch cover.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A chain-type large hatch cover, characterized in that: It comprises a set of symmetrically arranged frames (1), hatch cover assemblies (2), hatch enclosures (3), drive assemblies (4) and a set of locking assemblies (5); A plurality of slide rails (101) are fixed side by side on the top surface of the frame (1); The hatch cover assembly (2) comprises a plurality of hatch covers (201) stacked and nested with each other, the inner sides of both side walls of the plurality of hatch covers (201) are rotatably connected to a plurality of wheel bodies (202), the plurality of hatch covers (201) are slidably matched with the frame (1) via the plurality of wheel bodies (202) and the plurality of slide rails (101), the hatch enclosure (3) fixes one end of one of the hatch covers (201), and the rear side of the hatch cover (201) away from the hatch enclosure (3) is fixedly connected to the frame (1); A first retaining edge (203) is fixed on the inner side of one end of the hatch cover (201), and a second retaining edge (204) is fixed on the circumferential side of the other end of the hatch cover (201), and sealing gaskets are provided on the inner side of the first retaining edge (203) and the outer side of the second retaining edge (204); The driving assembly (4) comprises a reducer (401), a first sprocket guide wheel (402) and a set of second sprocket guide wheels (403); The reducer (401) and the first sprocket wheel (402) are respectively fixed to one end of the two frames (1), and the two second sprocket wheels (403) are respectively fixed to the other end of the two frames (1). A first chain (404) is transmission-connected between the reducer (401) and the first sprocket wheel (402) and the two second sprocket wheels (403), and the upper part of the first chain (404) is fixedly connected to the hatch cover (201) close to the hatch enclosure (3); The locking assembly (5) comprises a bracket (501), the brackets (501) on the two locking assemblies (5) are respectively fixed to the inner sides of the two frame bodies (1), the bracket (501) is rotatably connected to a cylinder (502) via a hinge seat, and a locking hook (503) is transmitted at the output end of the cylinder (502) via a connecting rod mechanism; A fixing screw (408) is fixed to the lower part of the first chain (404) via a connecting block (6), and the fixing screw (408) and the locking hook (503) are opposite and matched in position; The connecting rod mechanism comprises a connecting rod (504) and a push rod (505); a push rod frame (506) is fixed inside the frame body (1) and at a position opposite to the bracket (501); one end of the connecting rod (504) and one end of the push rod (505) are both rotatably connected to the output end of the oil cylinder (502) via a pin shaft; the other end of the push rod (505) is rotatably connected to the push rod frame (506); and the other end of the connecting rod (504) is rotatably connected to one end of the locking hook (503) via a rotating shaft (507); The push rod frame (506) is provided with a first slide groove (508) and a second slide groove (509), the locking hook (503) is penetrated by a slide rod (510), the rotating shaft (507) and the slide rod (510) are respectively located inside the first slide groove (508) and inside the second slide groove (509) and are slidably matched with the first slide groove (508) and the second slide groove (509); A bent portion (511) is provided at one end of the locking hook (503) away from the rotating shaft (507), a straight portion (512) is provided at one end of the bent portion (511), a hooking portion (513) is provided inside the straight portion (512), and the hooking portion (513) matches the fixing screw (408).

2. A chain-type large hatch cover according to claim 1, characterized in that: A bridge wheel (406) is fixed on the inner side of the frame (1); a bridge shaft (407) is provided between the axis centers of the bridge wheels (406) on the two frames (1); a second chain (409) is transmitted between the reducer (401) and the first sprocket wheel (402) and the two bridge wheels (406); a plurality of chain support wheels (405) are provided on the first chain (404) and the second chain (409); and the plurality of chain support wheels (405) are fixed on the inner side of the frame (1).

3. A chain-type large hatch cover according to claim 1, characterized in that: The frame (1) comprises an inverted L-shaped plate (102), and a plurality of reinforcing ribs (103) are fixed side by side on the outer side surface of the inverted L-shaped plate (102).

4. A chain-type large hatch cover according to claim 3, characterized in that: The reinforcing rib (103) is provided with an opening on one side close to the inverted L-shaped plate (102), and a reinforcing edge (104) is fixed on the outside of the inverted L-shaped plate (102) and located within the openings on the reinforcing ribs (103).

5. The chain-type large hatch cover according to claim 1, characterized in that: A limiting strip (105) is fixed to the inner bottom surface of the slide rail (101); the wheel body (202) is an I-shaped wheel body (202) structure; the wheel body (202) is located inside the slide rail (101) and rolls along the limiting strip (105).

6. A chain-type large hatch cover according to claim 1, characterized in that: The reducer (401) is a double-input shaft reducer; a hydraulic motor is fixed to one input shaft of the reducer (401); and a manual turntable is fixed to the other input end of the reducer (401).

7. A chain-type large hatch cover according to claim 6, characterized in that: It also includes a hydraulic pump station, which includes a hydraulic pump and a hand pump. The oil inlet and oil outlet of the hydraulic motor and the oil inlet and oil outlet of the oil cylinder (502) are all connected to the hydraulic pump and the hand pump. A hand valve is provided on the oil circuit between the hydraulic motor and the oil cylinder (502) and the hand pump, and a solenoid valve is provided on the oil circuit between the hydraulic motor and the oil cylinder (502) and the hydraulic pump.

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