Supporting device for ship hatch cover

Abstract

The invention relates to the technical field of ship manufacturing, in particular to a supporting device for a ship hatch cover. A hatch cover; a fixed seat; the arc-shaped arm I is fixedly mounted at one end, far away from the hatch, of the fixed seat; the arc-shaped arm II is mounted in the arc-shaped arm I in a sliding manner; the arc-shaped arm III is mounted in the arc-shaped arm II in a sliding manner; the fourth arc-shaped arm is installed in the third arc-shaped arm in a sliding mode; the adjusting assembly is arranged in the fixed seat; the auxiliary supporting assembly is arranged on the hatch cover; the connecting assembly is arranged between the other end of the fourth arc-shaped arm and the hatch cover. Compared with the prior art, by arranging the arc-shaped arm, the hatch cover can rotate to the horizontal state to be opened, the maximum opening effect is achieved, the maximum opening angle can be flexibly adjusted according to needs through the air bag and the adjusting button, and therefore the use requirements in different scenes are met, labor-saving opening of the hatch cover is achieved through the action of the L-shaped arm, and the hatch cover is convenient to use. And continuous protection is provided for emergency opening.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a supporting device for a ship hatch cover. Background Art

[0002] The support device for ship hatch covers is an important component on ships. It can effectively support the hatch covers and avoid direct pressure from the hatch coaming to the hatch covers, thereby preventing the hatch coaming and the hatch covers from being deformed or damaged, and protecting the safety of the hatch coaming and the hatch covers. The design of the support device usually takes into account various complex situations that the ship may encounter during navigation, such as waves, wind and waves, to ensure that the hatch covers can remain stable in various environments.

[0003] After searching, the Chinese patent with publication number CN110371247B discloses a ship hatch cover support device, including a hatch cover, a hatch coaming, a support component and an end clamp, wherein the hatch coaming is arranged on the main deck to form a ship hatch, the hatch cover is installed on the ship hatch, the support component is arranged on the hatch cover, and the end clamp is arranged on both sides of the ship hatch for fixing the support component. Through the above structure, the present invention eliminates the hatch cover track and its support of the extended part outside the hatch coaming, improves the space utilization rate of the deck surface, and makes the passage of personnel on the deck surface smoother; in addition, the hatch cover can be opened to the left and right sides of the ship, which improves the flexibility of ship dock operation. However, when the scheme is actually used, there are still the following shortcomings: When the crew needs to push the sliding hatch cover to open horizontally, they often need to raise their hands above their heads to apply force. This operation method is not only inconvenient for the crew to exert force, but also makes the hatch cover opening process extremely difficult, increasing the physical consumption and difficulty of the crew. In addition, various items and equipment often need to be placed, and the horizontally sliding hatch cover will occupy a large deck space when opened, which may interfere with the normal operations and item placement on the deck, and reduce the utilization efficiency of the deck space. In an emergency, such as when there is a large pressure difference between the inside and outside of the cabin, the hatch cover may be tightly pressed on the hatch, and the firm supporting device will make it difficult for the crew to open the hatch cover in a conventional way. This situation may cause the crew to be unable to get on the deck in time, and may also affect the ship's emergency response and rescue work.

[0004] Therefore, the present application provides a support device for a ship hatch cover to meet the needs of flexible opening, easy maintenance and emergency response. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a support device for a ship hatch cover to solve the problem that the support device has a single opening method and the hatch cover cannot be opened from the inside after being pressurized.

[0006] Based on the above purpose, the present invention provides a support device for a ship hatch cover, comprising: hatch; a hatch cover, arranged on the hatch; A fixing seat, fixedly mounted on the outer side wall of the hatch; Arc arm 1 is fixedly mounted on an end of the fixing base away from the hatch, and the central angle of the arc arm 1 is °; The arc-shaped arm 2 is slidably mounted in the arc-shaped arm 1 and is slightly shorter than the arc-shaped arm 1; The arc-shaped arm three is slidably mounted in the arc-shaped arm two and is slightly shorter than the arc-shaped arm two; The arc-shaped arm 4 is slidably mounted in the arc-shaped arm 3 and is slightly shorter than the arc-shaped arm 3; An adjustment component is arranged in the fixing seat; an auxiliary support assembly, arranged on the hatch cover; A connecting assembly, arranged between the other end of the arc-shaped arm 4 and the hatch cover; Among them, the arc-shaped arm one, the arc-shaped arm two, the arc-shaped arm three and the arc-shaped arm four together form a three-quarter circle, and the center of the circle is located at the upper right corner of the outer side of the hatch.

[0007] Preferably, the adjustment component comprises: An airbag, fixedly mounted in the fixing seat and extending into the arc-shaped arm 1; A communication hole, which is disposed on the fixing seat and is in communication with the airbag; An adjusting knob, rotatably mounted in the communicating hole; Among them, a plurality of semicircular air holes are provided on the connecting hole, a through hole matching with the air holes is provided on the adjusting button, and a pressure plate is fixedly installed on one end of the arc-shaped arm 2 close to the arc-shaped arm 1.

[0008] Preferably, a spring is arranged inside the airbag.

[0009] Preferably, the auxiliary support assembly comprises: Two support rod grooves are symmetrically arranged on the top of the hatch cover and are arranged parallel to the arc-shaped arm; The two support rods are respectively hinged in the two support rod grooves.

[0010] Preferably, the connection assembly comprises: A T-shaped groove, provided on one side of the hatch cover parallel to the arc-shaped groove; A slide plate is slidably mounted in the T-slot and fixedly connected to an end of the arc-shaped arm four away from the arc-shaped arm three; Two threaded holes are symmetrically arranged on the bottom surface of the slide plate and the depth of the two threaded holes is half of the thickness of the slide plate; Two threaded rods, respectively screwed into the two threaded holes and arranged through the hatch cover; Two handles, rotatably mounted on one end of the two threaded rods extending out of the hatch cover; Two jacking assemblies are respectively arranged on the hatch and vertically arranged with the arc-shaped arm.

[0011] Preferably, a pulley frame arranged parallel to the T-slot is fixedly mounted on the slide, and a plurality of pulleys adapted to the T-slot are rotatably mounted on the pulley frame.

[0012] Preferably, the lifting assembly comprises: A rotating shaft, fixedly mounted on the inner wall of the hatch; An L-shaped arm is rotatably mounted on the rotation axis, and the distance from one end of the L-shaped arm away from the hatch cover to the rotation axis is much greater than the distance from the other end of the L-shaped arm to the rotation axis; A latch slot, provided on the inner wall of the hatch and adapted to fit the L-shaped arm; A latch, slidably mounted in the latch slot; A limiting assembly is arranged on the inner wall of the hatch.

[0013] Preferably, the limiting component comprises: A mounting groove is provided on the inner wall of the hatch; A limiting plate, rotatably mounted on the top of the mounting groove; A torsion spring, fixedly installed between the mounting groove and the limiting plate; A slide groove is provided in the installation groove; The sliding frame is slidably mounted in the sliding groove, and the sum of the height of the sliding frame and the length of the limiting plate is less than the length of the mounting groove.

[0014] Preferably, a roller is rotatably mounted on one end of the L-shaped arm away from the latch slot.

[0015] A method for supporting a hatch cover for a ship, comprising the following steps: Step 1: First, apply thrust to the hatch cover, and the hatch cover starts to move, driving the arc arm four to slide along the arc arm three. The sliding of the arc arm four will drive the arc arm three and the arc arm two to slide in turn, and finally slide into the inner cavity of the arc arm one. During this process, the hatch cover will rotate ° and be fully opened in a horizontal state, and the support rod will be rotated from the support rod groove to a position perpendicular to the deck so that it is supported on the deck.

[0016] Step 2: Use the adjusting knob to completely offset the air hole and the through hole. At this time, the airbag is compressed during the hatch cover opening process and its volume is fixed, thereby determining the maximum opening angle of the hatch cover. If the hatch cover needs to be fully opened, the operator turns the adjusting knob to align the air hole and the through hole. At this time, the airbag will act as a buffer when the hatch cover is opened, and at the same time enable the hatch cover to be smoothly opened to °. When the hatch cover needs to be opened to other suitable angles, first move the hatch cover to the corresponding angle, and then turn the adjusting knob to close the connecting hole.

[0017] Step 3: Turn the handle to drive the threaded rod to rotate, thereby releasing the fixed state of the slide plate and the T-slot. After releasing the fixation, the operator can slide the hatch cover along the T-slot and then remove the hatch cover, or remove the threaded rod in the hatch to slide the hatch cover open. During the sliding opening process, the pulley can reduce the friction of the hatch cover when it slides.

[0018] Step 4: Slide the sliding frame downward, the torsion spring drives the limit plate to rotate outward and perpendicular to the hatch, remove the latch, and then pull the L-shaped arm downward. The other end of the L-shaped arm will lift the hatch cover. When it is lifted to the appropriate position, the L-shaped arm passes through the limit plate and is located under the limit plate and is fixed by the limit plate. At this time, the L-shaped arm can be released and the same lifting operation is performed on the other side. After both sides are lifted, the hatch cover is pushed horizontally to open it outward. The rollers provide support while further reducing friction to achieve the opening of the hatch cover.

[0019] 1. This type of ship hatch cover support device, by setting an arc arm, enables the hatch cover to rotate 180° and open in a horizontal state to achieve the maximum opening effect, which greatly facilitates the activities of personnel entering and exiting the hatch. Through the airbag and the adjustment button, the maximum opening angle of the hatch cover can be flexibly adjusted as needed, thereby rationally utilizing the deck space and meeting the use needs in different scenarios.

[0020] 2. The support device for the hatch cover of the ship is designed with air bags and adjustment buttons so that the hatch cover can be cushioned when it is opened, thereby avoiding damage to the equipment due to hard contact and increasing the service life. By adjusting the amount of alignment between the air hole and the through hole, the cushioning effect can be flexibly adjusted to adapt to different usage scenarios.

[0021] 3. This type of support device for ship hatch covers achieves stable support for hatch covers by setting a simple combination of arc-shaped arm groups. It has a simple structure and stable effect. The support rod can be rotated from the support rod groove to be perpendicular to the deck and supported on the deck, which effectively reduces the pressure and impact on the arc-shaped arm group and improves the service life of the equipment.

[0022] 4. This type of support device for ship hatch covers supports the sliding opening of hatch covers by setting pulleys and T-slots, making the opening method more flexible and enabling rapid disassembly and installation of equipment, facilitating maintenance and use, and reducing maintenance costs and time. When there is negative pressure in the cabin, the pressure difference between the inside and outside of the hatch can be reduced by removing the threaded rod, and the hatch cover can be opened with less effort under the action of the L-shaped arm, thereby enhancing the adaptability of the device. The jacking assembly can be reused to provide continuous protection for the emergency opening of the hatch cover, reducing the risk of equipment damage caused by emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a left-side structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the partial explosion structure of the present invention; Figure 5 Schematic diagram of the structure of the arc-shaped arm 4 of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 7 It is a schematic diagram of the structure of the jacking assembly of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Fig. 9 It is a structural schematic diagram of the present invention in a fully opened state.

[0025] The markings in the figure are: 1. Hatch; 2. Hatch cover; 3. Fixed seat; 31. Arc arm one; 32. Arc arm two; 33. Arc arm three; 34. Arc arm four; 4. Airbag; 41. Spring; 42. Connecting hole; 43. Adjusting knob; 5. Support rod slot; 51. Support rod; 6. T-slot; 61. Slide plate; 62. Threaded hole; 63. Threaded rod; 64. Handle; 65. Pulley frame; 66. Pulley; 7. Rotating shaft; 71. L-shaped arm; 72. Pin slot; 73. Pin; 74. Mounting slot; 75. Limiting plate; 76. Torsion spring; 77. Slide slot; 78. Sliding frame; 79. Roller. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] like Figures 1 to 9 As shown, a support device for a ship hatch cover comprises a hatch 1; a hatch cover 2, which is arranged on the hatch 1; a fixing seat 3, which is fixedly installed on the outer wall of the hatch 1; an arc arm 1 31, which is fixedly installed at one end of the fixing seat 3 away from the hatch 1, and the central angle of the arc arm 1 is 90°; an arc arm 2 32, which is slidably installed in the arc arm 1 31, and the length is slightly smaller than the arc arm 1 31; an arc arm 33, which is slidably installed in the arc arm 2 32, and the length is slightly smaller than the arc arm 2 32; an arc arm 4 34, which is slidably installed in the arc arm 33, and the length is The degree is slightly smaller than that of the arc arm three 33; the adjustment component is arranged in the fixing seat 3; the auxiliary support component is arranged on the hatch cover 2; the connection component is arranged between the other end of the arc arm four 34 and the hatch cover 2; wherein the arc arm one 31, the arc arm two 32, the arc arm three 33 and the arc arm four 34 together form a three-quarter circle, and the center of the circle is located at the upper right corner of the outer side of the hatch 1; the auxiliary support component includes: two support rod grooves 5, symmetrically opened at the top of the hatch cover 2 and arranged parallel to the arc arm one 31; two support rods 51, respectively hinged in the two support rod grooves 5; When in use, open the locking device at the hatch 1 (not shown in the figure), push the hatch cover 2, the hatch cover 2 will drive the arc arm four 34 to slide along the arc arm three 33, and in turn drive the arc arm three 33 and the arc arm two 32 to slide into the cavity in the arc arm one 31, at this time, the hatch cover 2 is rotated 180 degrees to open in a horizontal state, so as to achieve the maximum opening effect, which is convenient for using the hatch 1 for activities such as entering and exiting, and the support rod 51 can be rotated from the support rod groove 5 to be perpendicular to the deck, and supported on the deck, so as to reduce the pressure and impact on the arc arm group and improve the service life of the equipment, and the maximum opening angle of the hatch cover 2 can be adjusted by adjusting the components, so as to reasonably utilize the deck space according to needs, and the function of supporting the hatch cover 2 is realized by a simple arc arm combination, the structure is simple and the effect is stable, and the equipment can be quickly disassembled and installed through the connecting components, which is convenient for maintenance and use, and the hatch cover 2 can be opened by lifting the components when necessary, so as to improve the safety and reliability during use.

[0029] like Figure 4 and Figure 6 As shown, the adjustment component includes: an airbag 4, which is fixedly installed in the fixing seat 3 and extends into the arc-shaped arm 1 31; a connecting hole 42, which is provided on the fixing seat 3 and communicates with the airbag 4; an adjusting button 43, which is rotatably installed in the connecting hole 42; wherein, a plurality of semicircular air holes are provided on the connecting hole 42, and a through hole matching the air holes is provided on the adjusting button 43; a pressure plate is fixedly installed at one end of the arc-shaped arm 2 32 close to the arc-shaped arm 1 31; a spring 41 is provided in the airbag 4; When the air hole and the through hole are completely offset by the adjusting button 43, the volume of the airbag 4 after being compressed when the hatch cover 2 is opened is fixed, thereby determining the maximum opening angle of the hatch cover 2. When the hatch cover 2 needs to be fully opened, the air hole and the through hole are aligned by turning the adjusting button 43. At this time, the airbag 4 has a buffering effect on the opened hatch cover 2, avoiding damage to the equipment caused by hard contact, improving the service life, and allowing the hatch cover 2 to be opened to 180°. The buffering effect can be adjusted by adjusting the amount of alignment between the air hole and the through hole. In addition, when it is necessary to control the opening angle to other appropriate angles, the hatch cover 2 is moved to the corresponding angle, and the adjusting button 43 is turned to close the connecting hole 42, thereby realizing the adjustment of the maximum opening and closing position, so that the hatch cover 2 can be flexibly adjusted according to the use of the deck, and the spring 41 can assist the airbag 4 to quickly reset after being compressed to cope with the next opening and closing.

[0030] like Figures 3 to 5As shown, the connection assembly includes: a T-slot 6, which is provided on one side of the hatch cover 2 and is parallel to the arc-shaped slot 1 31; a slide plate 61, which is slidably installed in the T-slot 6 and fixedly connected to one end of the arc-shaped arm 4 34 away from the arc-shaped arm 3 33; two threaded holes 62, which are symmetrically provided on the bottom surface of the slide plate 61 and whose depth is half of the thickness of the slide plate 61; two threaded rods 63, which are respectively screwed into the two threaded holes 62 and are arranged through the hatch cover 2; two handles 64, which are respectively rotatably installed on one end of the two threaded rods 63 extending out of the hatch cover 2; two jacking assemblies, which are respectively arranged on the hatch 1 and are arranged perpendicular to the arc-shaped arm 1 31; a pulley frame 65 arranged parallel to the T-slot 6 is fixedly installed on the slide plate 61, and a plurality of pulleys 66 adapted to the T-slot 6 are rotatably installed on the pulley frame 65; By turning the handle 64 to drive the threaded rod 63 to rotate, the fixation of the slide plate 61 and the T-slot 6 is released. At this time, the hatch cover 2 can be slid along the T-slot 6 to remove the hatch cover. At this time, the arc arm group can be conveniently maintained and repaired. The pulley 66 reduces its friction when sliding the hatch cover 2 open, thereby reducing the difficulty of sliding the hatch cover 2. In daily use, the threaded rod 63 can be removed from the hatch 1 to achieve sliding opening of the hatch cover 2, making the opening method more flexible and more convenient to use the deck space. When there is negative pressure in the cabin, the pressure difference between the inside and outside of the hatch 1 can be reduced by removing the threaded rod 63, and under the action of the jacking assembly, the hatch cover 2 can be opened urgently.

[0031] like Figures 7 to 9 As shown, the lifting assembly includes: a rotating shaft 7, which is fixedly mounted on the inner wall of the hatch 1; an L-shaped arm 71, which is rotatably mounted on the rotating shaft 7, and the distance from one end of the L-shaped arm 71 away from the hatch cover 2 to the rotating shaft 7 is much greater than the distance from the other end to the rotating shaft 7; a latch groove 72, which is arranged on the inner wall of the hatch 1 and is compatible with the L-shaped arm 71; a latch 73, which is slidably mounted in the latch groove 72; a limiting assembly, which is arranged on the inner wall of the hatch 1; the limiting assembly includes: a mounting groove 74, which is arranged on the inner wall of the hatch 1; a limiting plate 75, which is rotatably mounted on the top of the mounting groove 74; a torsion spring 76, which is fixedly mounted between the mounting groove 74 and the limiting plate 75; a slide groove 77, which is arranged in the mounting groove 74; a sliding frame 78, which is slidably mounted in the slide groove 77, and the sum of the height of the sliding frame 78 and the length of the limiting plate 75 is less than the length of the mounting groove 74; a roller 79 is rotatably mounted on the end of the L-shaped arm 71 away from the latch groove 72; When the hatch cover 2 is under pressure and is difficult to rotate outward to open, the sliding frame 78 can be slid downward, and the torsion spring 76 drives the limit plate 75 to rotate outward and perpendicular to the hatch 1. At this time, the latch 73 is removed, and the L-shaped arm 71 is pulled downward to make the other end lift the hatch cover 2. The L-shaped arm 71 is moved away by the lever, so that the force required to open the hatch cover 2 is greatly reduced. When it is lifted to the appropriate position, the L-shaped arm 71 passes through the limit plate 75 and is located below the limit plate 75 and is fixed by the limit plate 75. At this time, the L-shaped arm 71 can be released to lift the other side. After both sides are lifted, the hatch cover 2 can be opened outward by pushing it horizontally. The roller 79 can further reduce the friction while providing support, thereby avoiding the effort of lifting heavy objects to open the hatch cover 2 by sliding to open, and the lifting assembly can be reused to provide continuous protection for the emergency opening of the hatch cover 2.

[0032] A method for supporting a hatch cover for a ship, comprising the following steps: Step 1: First, a thrust is applied to the hatch cover 2, and the hatch cover 2 starts to move, driving the arc arm four 34 to slide along the arc arm three 33. The sliding of the arc arm four 34 will in turn drive the arc arm three 33 and the arc arm two 32 to slide, and finally slide into the inner cavity of the arc arm one 31. During this process, the hatch cover 2 will rotate 180° and be fully opened in a horizontal state, and the support rod 51 will be rotated from the support rod groove 5 to a position perpendicular to the deck, so that it is supported on the deck.

[0033] Step 2: Use the adjusting button 43 to completely offset the air hole and the through hole. At this time, the airbag 4 is compressed during the opening process of the hatch cover 2, and its volume is fixed, thereby determining the maximum opening angle of the hatch cover 2. If the hatch cover 2 needs to be fully opened, the operator turns the adjusting button 43 to align the air hole and the through hole. At this time, the airbag 4 will play a buffering role when the hatch cover 2 is opened, and at the same time enable the hatch cover 2 to be smoothly opened to 180°. When the hatch cover 2 needs to be opened to other suitable angles, first move the hatch cover 2 to the corresponding angle, and then turn the adjusting button 43 to close the connecting hole 42.

[0034] Step 3: Turn the handle 64 to drive the threaded rod 63 to rotate, thereby releasing the fixed state of the slide plate 61 and the T-slot 6. After releasing the fixation, the operator can slide the hatch cover 2 along the T-slot 6 and then remove the hatch cover, or remove the threaded rod 63 in the hatch 1 to slide open the hatch cover 2. During the sliding opening process, the pulley 66 can reduce the friction force when the hatch cover 2 slides.

[0035] Step 4: Slide the sliding frame 78 downward, the torsion spring 76 drives the limit plate 75 to rotate outward and perpendicular to the hatch 1, remove the latch 73, and then pull the L-shaped arm 71 downward. The other end of the L-shaped arm 71 will lift the hatch cover 2. When it is lifted to a suitable position, the L-shaped arm 71 passes through the limit plate 75 and is located below the limit plate 75, and is fixed by the limit plate 75. At this time, the L-shaped arm 71 can be released, and the same lifting operation is performed on the other side. After both sides are lifted, the hatch cover 2 is pushed horizontally to open it outward. The roller 79 provides support while further reducing friction to achieve the opening of the hatch cover 2.

[0036] The technical solution provided by the present invention is to open the locking device (not shown in the figure) at the hatch 1, push the hatch cover 2, and the hatch cover 2 will drive the arc arm 4 34 to slide along the arc arm 3 33, and in turn drive the arc arm 3 33 and the arc arm 2 32 to slide into the cavity of the arc arm 1 31. At this time, the hatch cover 2 is rotated 180° to be opened in a horizontal state, achieving the maximum opening effect, which is convenient for using the hatch 1 for activities such as entering and exiting, and the support rod 51 can be rotated from the support rod groove 5 to be perpendicular to the deck and supported on the deck, thereby reducing the pressure and impact on the arc arm group and improving the service life of the equipment. The maximum opening angle of the hatch cover 2 can be adjusted by adjusting the components, so as to reasonably utilize the deck space as needed. The function of supporting the hatch cover 2 is realized by a simple arc arm combination. The structure is simple and the effect is stable. Moreover, the equipment can be quickly disassembled and installed by connecting the components, which is convenient for maintenance and use. When necessary, the hatch cover 2 can be opened by lifting the components, thereby improving the safety and reliability during use.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0038] Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A support device for a ship hatch cover, characterized in that: include: Hatch (1); A hatch cover (2) arranged on the hatch (1); A fixing seat (3) fixedly mounted on the outer side wall of the hatch (1); An arc-shaped arm 1 (31) is fixedly mounted on an end of the fixing seat (3) away from the hatch (1), and a central angle corresponding to the arc-shaped arm 1 is (90)°; The arc-shaped arm 2 (32) is slidably mounted in the arc-shaped arm 1 (31) and is slightly shorter than the arc-shaped arm 1 (31); The arc-shaped arm three (33) is slidably mounted in the arc-shaped arm two (32) and is slightly shorter than the arc-shaped arm two (32); Arc-shaped arm four (34), slidably mounted in the arc-shaped arm three (33), and having a length slightly smaller than the arc-shaped arm three (33); An adjustment component, arranged in the fixing seat (3); An auxiliary support assembly, arranged on the hatch cover (2); A connecting assembly, arranged between the other end of the arc-shaped arm four (34) and the hatch cover (2); The arc-shaped arm 1 (31), the arc-shaped arm 2 (32), the arc-shaped arm 3 (33) and the arc-shaped arm 4 (34) together form a three-quarter circle, and the center of the circle is located at the upper right corner of the outer side of the hatch (1).

2. A support device for a ship hatch cover according to claim 1, characterized in that: The adjustment component comprises: An airbag (4) is fixedly mounted in the fixing seat (3) and extends into the arc-shaped arm 1 (31); A communication hole (42) is formed on the fixing seat (3) and is in communication with the airbag (4); An adjusting button (43) rotatably mounted in the communicating hole (42); The communicating hole (42) is provided with a plurality of semicircular air holes, the regulating button (43) is provided with a through hole matching the air holes, and a pressure plate is fixedly mounted on one end of the arc-shaped arm (32) close to the arc-shaped arm (31).

3. A support device for a ship hatch cover according to claim 2, characterized in that: A spring (41) is arranged inside the airbag (4).

4. A support device for a ship hatch cover according to claim 1, characterized in that: The auxiliary support assembly comprises: Two support rod grooves (5) are symmetrically arranged at the top of the hatch cover (2) and are arranged parallel to the arc-shaped arm 1 (31); The two support rods (51) are respectively hinged in the two support rod grooves (5).

5. A support device for a ship hatch cover according to claim 1, characterized in that: The connection component comprises: A T-shaped groove (6) is provided on a side of the hatch cover (2) parallel to the arc-shaped groove (31); A slide plate (61) is slidably mounted in the T-slot (6) and fixedly connected to an end of the arc-shaped arm four (34) away from the arc-shaped arm three (33); Two threaded holes (62) are symmetrically arranged on the bottom surface of the slide plate (61) and have a depth equal to half the thickness of the slide plate (61); Two threaded rods (63) are respectively screwed into the two threaded holes (62) and are disposed through the hatch cover (2); Two handles (64) are rotatably mounted on one end of the two threaded rods (63) extending out of the hatch cover (2); Two lifting assemblies are respectively arranged on the hatch (1) and are arranged perpendicular to the arc-shaped arm 1 (31).

6. A support device for a ship hatch cover according to claim 5, characterized in that: A pulley frame (65) arranged parallel to the T-shaped slot (6) is fixedly mounted on the slide plate (61), and a plurality of pulleys (66) adapted to the T-shaped slot (6) are rotatably mounted on the pulley frame (65).

7. A support device for a ship hatch cover according to claim 6, characterized in that: The jacking assembly comprises: A rotating shaft (7) fixedly mounted on the inner wall of the hatch (1); An L-shaped arm (71) is rotatably mounted on the rotating shaft (7), and the distance from one end of the L-shaped arm (71) away from the hatch cover (2) to the rotating shaft (7) is much greater than the distance from the other end to the rotating shaft (7); A latch slot (72) is provided on the inner wall of the hatch (1) and is adapted to fit the L-shaped arm (71); A latch (73) slidably mounted in the latch slot (72); A limit assembly is arranged on the inner wall of the hatch (1).

8. A support device for a ship hatch cover according to claim 7, characterized in that: The limiting component comprises: A mounting groove (74) is provided on the inner wall of the hatch (1); A limiting plate (75) is rotatably mounted on the top of the mounting groove (74); a torsion spring (76) fixedly mounted between the mounting groove (74) and the limiting plate (75); A slide groove (77) is provided in the mounting groove (74); A sliding frame (78) is slidably mounted in the sliding groove (77), and the sum of the height of the sliding frame (78) and the length of the limiting plate (75) is less than the length of the mounting groove (74).

9. A support device for a ship hatch cover according to claim 8, characterized in that: A roller (79) is rotatably mounted on one end of the L-shaped arm (71) away from the latch slot (72).

10. A method for supporting a ship hatch cover, based on a ship hatch cover supporting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: first, a thrust is applied to the hatch cover (2), and the hatch cover (2) starts to move, driving the arc-shaped arm 4 (34) to slide along the arc-shaped arm 3 (33). The sliding of the arc-shaped arm 4 (34) will in turn drive the arc-shaped arm 3 (33) and the arc-shaped arm 2 (32) to slide, and finally slide into the inner cavity of the arc-shaped arm 1 (31). During this process, the hatch cover (2) will rotate 180°, presenting a horizontal state and fully opened, and the support rod (51) will be rotated from the support rod groove (5) to a position perpendicular to the deck, so that it is supported on the deck; Step 2: The air hole and the through hole are completely offset by using the adjusting knob (43). At this time, the air bag (4) is compressed during the opening process of the hatch cover (2), and its volume is fixed, thereby determining the maximum opening angle of the hatch cover (2). If the hatch cover (2) needs to be fully opened, the operator turns the adjusting knob (43) to align the air hole and the through hole. At this time, the air bag (4) will play a buffering role when the hatch cover (2) is opened, and at the same time, the hatch cover (2) can be smoothly opened to 180°. When the hatch cover (2) needs to be opened to other suitable angles, the hatch cover (2) is first moved to the corresponding angle, and then the adjusting knob (43) is turned to close the connecting hole (42); Step 3: Turn the handle (64) to drive the threaded rod (63) to rotate, thereby releasing the fixed state of the slide plate (61) and the T-slot (6). After the fixing is released, the operator can slide the hatch cover (2) along the T-slot (6) to remove the hatch cover, or remove the threaded rod (63) from the hatch (1) to slide the hatch cover (2) open. During the sliding opening process, the pulley (66) can reduce the friction force of the hatch cover (2) when sliding; Step 4: Slide the sliding frame (78) downward, the torsion spring (76) drives the limit plate (75) to rotate outward and perpendicular to the hatch (1), remove the latch (73), and then pull the L-shaped arm (71) downward. The other end of the L-shaped arm (71) will lift the hatch cover (2). When it is lifted to a suitable position, the L-shaped arm (71) passes through the limit plate (75) and is located below the limit plate (75) and is fixed by the limit plate (75). At this time, the L-shaped arm (71) can be released, and the same lifting operation is performed on the other side. After both sides are lifted, the hatch cover (2) is pushed horizontally to open outward. The roller (79) provides support and further reduces friction, thereby realizing the opening of the hatch cover (2).

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